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Rodrigues CV, Camargo FP, Lourenço VA, Sakamoto IK, Maintinguer SI, Silva EL, Amâncio Varesche MB. Towards a circular bioeconomy to produce methane by co-digestion of coffee and brewery waste using a mixture of anaerobic granular sludge and cattle manure as inoculum. Chemosphere 2024; 357:142062. [PMID: 38636915 DOI: 10.1016/j.chemosphere.2024.142062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/07/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Coffee processing wastes, such as solid (pulp and husk) and wastewater, co-digested with industrial brewery wastewater, serve as excellent substrates for generating methane in the anaerobic digestion process. This study compared methane production using different compositions of cattle manure (CM) and granular sludge from an Upflow Anaerobic Sludge Blanket (UASB) reactor used in poultry wastewater treatment (GS). Four anaerobic batch reactors (500 mL) were assembled, A (50% CM and 50% GS), B (60% CM and 40% GS), C (70% CM and 30% of GS) and D (60% CM and 40% GS). Equal concentrations of substrates were added to all reactors: pulp and husk pretreated by hydrothermolysis (1 g L-1), coffee (10 g COD L-1) and brewery (1.5 g COD L-1) wastewaters. Assays A, B and C were supplemented with 2 g L-1 of yeast extract, except for assay D. The reactors were operated at 37 °C and pH 7.0. In assay B, the highest CH4 production of 759.15 ± 19.20 mL CH4 g-1 TS was observed, possibly favored by the synergistic interactions between cellulolytic bacteria Christensenellaceae_R-7_group and Methanosaeta archaea, as inferred by genes encoding enzymes related to acetoclastic methanogenesis (acetyl-CoA synthetase). Consequently, the electricity production potential of assay B (45614.08 kWh-1 year-1) could meet the energy demand of a farm producing coffee and beer, contributing to a positive energy balance concerning methane generation.
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Affiliation(s)
- Caroline Varella Rodrigues
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), 1100 João Dagnone Avenue, São Carlos, SP, 13563120, Brazil.
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), 1100 João Dagnone Avenue, São Carlos, SP, 13563120, Brazil
| | - Vitor Alves Lourenço
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), 1100 João Dagnone Avenue, São Carlos, SP, 13563120, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), 1100 João Dagnone Avenue, São Carlos, SP, 13563120, Brazil
| | - Sandra Imaculada Maintinguer
- Bioenergy Research Institute (IPBEN), São Paulo State University (UNESP), 2527 10 Street, Rio Claro, SP, 13500230, Brazil
| | - Edson Luiz Silva
- Center of Exact Sciences and Technology, Department of Chemical Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP CEP, 13565905, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), 1100 João Dagnone Avenue, São Carlos, SP, 13563120, Brazil.
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Pirete LDM, Camargo FP, Grosseli GM, Sakamoto IK, Fadini PS, Silva EL, Varesche MBA. Microbial diversity and metabolic inference of diclofenac removal in optimised batch heterotrophic-denitrifying conditions by means of factorial design. Environ Technol 2024; 45:2847-2866. [PMID: 36927407 DOI: 10.1080/09593330.2023.2192365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Using the Response Surface Methodology (RSM) and Rotational Central Composite Design (RCCD), this study evaluated the removal of DCF under denitrifying conditions, with ethanol as cosubstrate, in batch reactors, being 1 L Erlenmeyer flasks (330 mL of reactional volume) containing Dofing medium and kept under agitation at 130 rpm and incubated at mesophilic temperature (30 °C). It considered the individual and multiple effects of the variables: nitrate (130 - 230 mg NO3- L-1), DCF (60-100 µg DCF L-1) and ethanol (130 - 230 mg EtOH L-1). The highest drug removal efficiency (17.5%) and total nitrate removal were obtained at 176.6 ± 4.3 mg NO3 -L-1, 76.8 ± 3.7 µg DCF L-1, and 180.0 ± 2.5 mg EtOH L-1. Under such conditions, the addition of ethanol and nitrate was significant for the additional removal of diclofenac (p > 0.05). The prevalence of Rhodanobacter, Haliangium and Terrimonas in the inoculum biomass (activated sludge systems) was identified through the 16S rRNA gene sequencing. The potential of these genera to remove nitrate and degrade diclofenac was inferred, and the main enzymes potentially involved in this process were α-methylacyl-CoA racemase, long-chain fatty acid-CoA ligase, catalases and pseudoperoxidases.
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Affiliation(s)
- Luciana de Melo Pirete
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | | | - Isabel K Sakamoto
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
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Teixeira RM, Sakamoto IK, Motteran F, Camargo FP, Varesche MBA. Removal of nonylphenol ethoxylate surfactant in batch reactors: emphasis on methanogenic potential and microbial community characterization under optimized conditions. Environ Technol 2024; 45:1343-1357. [PMID: 36352347 DOI: 10.1080/09593330.2022.2143287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
ABSTRACTNonylphenol ethoxylate (NPE) is an endocrine-disrupting chemical that has bioaccumulative, persistent and toxic characteristics in different environmental matrices and is difficult to remove in sewage treatment plants. In this study, the effects of the initial concentration of NPE (0.2 ± 0.03 - 3.0 ± 0.02 mg. L-1) and ethanol (73.9 ± 5.0-218.6 ± 10.6 mg. L-1) were investigated using factorial design. Assays were carried out in anaerobic batch reactors, using the Zinder basal medium, yeast extract (200 mg. L-1), vitamin solution and sodium bicarbonate (10% v/v). The optimal conditions were 218.56 mg.L-1 of ethanol and 1596.51 µg.L-1 of NPE, with 92% and 88% of NPE and organic matter removal, respectively, and methane yield (1689.8 ± 59.6 mmol) after 450 h of operation. In this condition, bacteria potentially involved in the degradation of this surfactant were identified in greater relative abundance, such as Acetoanaerobium (1.68%), Smithella (1.52%), Aminivibrio (0.91%), Petrimonas (0.57%) and Enterobacter (0.47%), as well as archaea Methanobacterium and Methanoregula, mainly involved in hydrogenotrophic pathway.
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Affiliation(s)
- Rômulo Mota Teixeira
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Fabrício Motteran
- Department of Civil and Environmental Engineering, Federal University of Pernambuco, Recife, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering (EESC), University of São Paulo (USP), São Paulo, Brazil
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Menezes CAD, Almeida PDS, Camargo FP, Delforno TP, Oliveira VMD, Sakamoto IK, Varesche MBA, Silva EL. One versus two-stage codigestion of sugarcane vinasse and glycerol: Assessing combinations at mesophilic and (hyper) thermophilic conditions. Sci Total Environ 2023; 904:166294. [PMID: 37586502 DOI: 10.1016/j.scitotenv.2023.166294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/16/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
Sugarcane vinasse exits the distillation process at high temperatures, which may differ from the optimal temperatures for dark fermentation and anaerobic digestion. A 15 °C temperature increase, for example, stops sugarcane vinasse methane generation, making distillery vinasse digestion complicated. Conversely, in other aspects, co-digesting vinasse and glycerol has been proven to stabilize methane production from vinasse because of sulfate dilution. However, glycerol has not been tested to stabilize vinasse digestion under temperature changes. Thus, this study compared the effects of different temperature settings on the co-digestion of 10 g COD L-1 of vinasse and glycerol (50 %:50 % on a COD basis) in anaerobic fluidized bed reactors (AFBR), i.e., an acidogenic and a methanogenic one-stage AFBRs operated at 55, 60, and 65 °C, and two methanogenic AFBRs fed both with acidogenic effluent (one operated at room temperature (25 °C) and the other at 55, 60, and 65 °C). The co-digestion provided steady methane generation at all AFBRs, with methane production rates ranging from 2.27 to 2.93 L CH4 d-1 L-1, whether in one or two stages. A feature of this research was to unravel the black box of the role of sulfate in the digestion of sugarcane vinasse, which was rarely studied. Desulfovibrio was the primary genus degrading 1,3-propanediol into 3-hydroxypropanoate after genome sequencing. Phosphate acetyltransferase (EC: 2.3.1.8, K00625) and acetate kinase (EC: 2.7.2.1, K00925) genes were also found, suggesting propionate was metabolized. In practical aspects, regarding the two-stage systems, the thermophilic-mesophilic (acidogenic-methanogenic) configuration is best for extracting additional value-added products because 1,3-propanediol may be recovered at high yields with steady methane production at reduced energy expenditure in a reactor operated at room temperature. However, the one-stage design is best for methane generation per system volume since it remained stable with rising temperatures, and all systems presented similar methane production rates.
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Affiliation(s)
- Camila Aparecida de Menezes
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil
| | - Priscilla de Souza Almeida
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905 São Carlos, SP, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil
| | - Tiago Palladino Delforno
- SENAI Innovation Institute for Biotechnology, Rua Anhaia, 1321, Bom Retiro - São Paulo, 01130-000 São Paulo, SP, Brazil
| | - Valeria Maia de Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University, Campinas, SP CEP 13081-970, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905 São Carlos, SP, Brazil.
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Camargo FP, Sakamoto IK, Delforno TP, Midoux C, Duarte ICS, Silva EL, Bize A, Varesche MBA. Microbial and functional characterization of granulated sludge from full-scale UASB thermophilic reactor applied to sugarcane vinasse treatment. Environ Technol 2023; 44:3141-3160. [PMID: 35298346 DOI: 10.1080/09593330.2022.2052361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Considering the scarcity of data in the literature regarding phylogenetic and metabolic composition of different inocula, especially those from thermophilic conditions, this research aimed at characterizing the microbial community and preferable metabolic pathways of an UASB reactor sludge applied to the thermophilic treatment (55°C) of sugarcane vinasse, by means of shotgun metagenomics. After its metabolic potential was depicted, it was possible to observe several genes encoding enzymes that are of great importance to anaerobic digestion processes with different wastes as substrate, especially regarding the biodegradation of carbohydrates and ligninolytic compounds, glycerolypids, volatile fatty acids and alcohols metabolism and biogas (H2 and CH4) production. The genera identified in higher relative abundances for Bacteria domain were Sulfirimonas (37.52 ± 1.8%), possibly related to the sludge endogenic activity due to its strong relation with a peptidoglycan lyase enzymes family, followed by Fluviicola (5.01 ± 1.0%), Defluviitoga (4.36 ± 0.2%), Coprothermobacter (4.32 ± 0.5%), Fervidobacterium (2.93 ± 0.3%), Marinospirillum (2.75 ± 0.2%), Pseudomonas (2.14 ± 0.2%) and Flavobacterium (1.78 ± 0.1%), mostly related with carbohydrates fermentations and/or H2 production. For Archaea domain, Methanosarcina (0.61 ± 0.1%), Methanothermobacter (0.38 ± 0.0%), Methanoculleus (0.30 ± 0.1%), Thermococcus (0.03 ± 0.0%), Methanolobus (0.02 ± 1.8%), Methanobacterium (0.013 ± 0.0%), Aciduliprofundum and Pyrococcus (0.01 ± 0.0%) were the most dominant ones, being Methanosarcina the most related with methanogenesis. It was concluded that the robust inoculum description performed in this study may subside future biotechnological researches by using similar inocula (UASB sludges), focusing on the obtainment of value-added by-products by means of anaerobic digestion, such as volatile fatty acids, alcohols and biogas (H2 and CH4), by using several types of waste as substrate.
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Affiliation(s)
- Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo (USP), São Carlos, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo (USP), São Carlos, Brazil
| | | | - Cédric Midoux
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement (PROSE), Antony, France
| | | | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos (UFSCar) São Carlos, Brazil
| | - Ariane Bize
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement (PROSE), Antony, France
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Ventura J, Camargo FP, Sakamoto IK, Silva EL, Varesche MBA. Potential methanogenic and degradation of nonylphenol ethoxylate from domestic sewage: unravelling the essential roles of nutritional conditions and microbial community. Environ Technol 2023; 44:1996-2010. [PMID: 34907848 DOI: 10.1080/09593330.2021.2018504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/07/2021] [Indexed: 05/25/2023]
Abstract
Nonylphenol ethoxylathe (NPEO) is a non-ionic surfactant of increasing concern, used in the formulation of laundry detergents and is frequently found in aquatic environments. The purpose of this study was to evaluate the effects of yeast extract (YE) and sodium fumarate (SF) in NPEO removal from domestic sewage under anaerobic conditions via central composite rotatable design (CCRD) and response surface methodology (RSM). Experiments were designed by varying concentrations of NPEO (1.6-5.8 mg L-1), YE (131.8-468.2 mg L-1) and SF (97.7-602.3 mg L-1) in batch reactors. SF and YE addition significantly influenced NPEO removal and CH4 production. Optimal values of YE (400 mg L-1) and SF (200 mg L-1) result in removal efficiency of 97% for 5 mg L-1 of NPEO, being mostly removed by biodegradation (86%). Meanwhile COD removal was 95% and methane yield was 134 ± 4 NmLCH4 g-¹CODremoved. The most abundant Bacteria genus identified were Macellibacteroides, Longilinea, Petrimonas and Proteiniphilum, while for Archaea, Methanosaeta and Methanoregula were the genera identified in higher relative abundances in optimized conditions.
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Affiliation(s)
- Jeny Ventura
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone 1100, Jardim Santa Angelina, São Carlos 13563120, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone 1100, Jardim Santa Angelina, São Carlos 13563120, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone 1100, Jardim Santa Angelina, São Carlos 13563120, Brazil
| | - Edson Luiz Silva
- Federal University of São Carlos, Chemical Engineering, São Carlos, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone 1100, Jardim Santa Angelina, São Carlos 13563120, Brazil
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Almeida PDS, de Menezes CA, Camargo FP, Sakamoto IK, Lovato G, Rodrigues JAD, Varesche MBA, Silva EL. Biomethane recovery through co-digestion of cheese whey and glycerol in a two-stage anaerobic fluidized bed reactor: Effect of temperature and organic loading rate on methanogenesis. J Environ Manage 2023; 330:117117. [PMID: 36584460 DOI: 10.1016/j.jenvman.2022.117117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/07/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Anaerobic digestion for CH4 recovery in wastewater treatment has been carried out with different strategies to increase process efficiency, among which co-digestion and the two-stage process can be highlighted. In this context, this study aimed at evaluating the co-digestion of cheese whey and glycerol in a two-stage process using fluidized bed reactors, verifying the effect of increasing the organic loading rate (OLR) (2-20 g-COD.L-1.d-1) and temperature (thermophilic and mesophilic) in the second stage methanogenic reactor. The mesophilic methanogenic reactor (R-Meso) (mean temperature of 22 °C) was more tolerant to high OLR and its best performance was at 20 g-COD.L-1.d-1, resulting in methane yield (MY) and methane production (MPR) of 273 mL-CH4.g-COD-1 and 5.8 L-CH4.L-1.d-1 (with 67% of CH4), respectively. Through 16S rRNA gene massive sequencing analysis, a greater diversity of microorganisms was identified in R-Meso than in R-Thermo (second stage methanogenic reactor, 55 °C). Firmicutes was the phyla with higher relative abundance in R-Thermo, while in R-Meso the most abundant ones were Proteobacteria and Bacteroidetes. Regarding the Archaea domain, a predominance of hydrogenotrophic microorganisms could be observed, being the genera Methanothermobacter and Methanobacterium the most abundant in R-Thermo and R-Meso, respectively. The two-stage system composed with a thermophilic acidogenic reactor + R-Meso was more adequate for the co-digestion of cheese whey and glycerol than the single-stage process, promoting increases of up to 47% in the energetic yield (10.3 kJ.kg-COD-1) and 14% in organic matter removal (90.5%).
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Affiliation(s)
- Priscilla de Souza Almeida
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, Km 235, Zip Code 13.565-905, São Carlos, SP, Brazil
| | - Camila Aparecida de Menezes
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, Zip Code 13.563-120, São Carlos, SP, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, Zip Code 13.563-120, São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, Zip Code 13.563-120, São Carlos, SP, Brazil
| | - Giovanna Lovato
- Department of Chemical Engineering, Mauá School of Engineering, Mauá Institute of Technology, Praça Mauá 1, Zip Code 09.580-900, São Caetano Do Sul, SP, Brazil
| | - José Alberto Domingues Rodrigues
- Department of Chemical Engineering, Mauá School of Engineering, Mauá Institute of Technology, Praça Mauá 1, Zip Code 09.580-900, São Caetano Do Sul, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, Zip Code 13.563-120, São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, Km 235, Zip Code 13.565-905, São Carlos, SP, Brazil.
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de Menezes CA, de Souza Almeida P, Camargo FP, Delforno TP, de Oliveira VM, Sakamoto IK, Varesche MBA, Silva EL. Two problems in one shot: Vinasse and glycerol co-digestion in a thermophilic high-rate reactor to improve process stability even at high sulfate concentrations. Sci Total Environ 2023; 862:160823. [PMID: 36521617 DOI: 10.1016/j.scitotenv.2022.160823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Anaerobic co-digestion (AcoD) of sugarcane vinasse and glycerol can be profitable because of the destination of two biofuel wastes produced in large quantities in Brazil (ethanol and biodiesel, respectively) and the complementary properties of these substrates. Thus, the objective of this study was to assess the effect of increasing the organic loading rate (OLR) from 2 to 20 kg COD m-3 d-1 on the AcoD of vinasse and glycerol (50 %:50 % on a COD basis) in a thermophilic (55 °C) anaerobic fluidized bed reactor (AFBR). The highest methane production rate was observed at 20 kg COD m-3 d-1 (8.83 L CH4 d-1 L-1), while the methane yield remained stable at around 265 NmL CH4 g-1 CODrem in all conditions, even when influent vinasse reached 1811 mg SO42- L-1 (10 kg COD m-3 d-1). Sulfate was not detected in the effluent. Bacterial genera related to sulfate removal, such as Desulfovibrio and Desulfomicrobium, were observed by means of shotgun metagenomic sequencing at 10 kg COD m-3 d-1, as well as the acetoclastic archaea Methanosaeta and prevalence of genes encoding enzymes related to acetoclastic methanogenesis. It was concluded that process efficiency and methane production occurred even in higher sulfate concentrations due to glycerol addition.
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Affiliation(s)
- Camila Aparecida de Menezes
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120, São Carlos, SP, Brazil
| | - Priscilla de Souza Almeida
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905, São Carlos, SP, Brazil
| | - Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120, São Carlos, SP, Brazil
| | - Tiago Palladino Delforno
- SENAI Innovation Institute for Biotechnology, Rua Anhaia, 1321, Bom Retiro - São Paulo, 01130-000, São Paulo, SP, Brazil
| | - Valeria Maia de Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), State University of Campinas, Campinas, SP CEP 13081-970, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120, São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, CEP 13563-120, São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905, São Carlos, SP, Brazil.
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Motteran F, Varesche MBA, Lara-Martin PA. Assessment of the aerobic and anaerobic biodegradation of contaminants of emerging concern in sludge using batch reactors. Environ Sci Pollut Res Int 2022; 29:84946-84961. [PMID: 35789461 DOI: 10.1007/s11356-022-21819-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
This work explores the degradation of xenobiotic compounds in aerobic and anaerobic batch reactors. Different inoculums were spiked with nine emerging contaminants at nominal concentrations ranging between 1 to 2 mg/L (ibuprofen, diclofenac, naproxen, acesulfame, sucralose, aspartame, cyclamate, linear alkylbenzene sulfonates, and secondary alkyl sulfonates). Ethanol was used as co-substrate in the anaerobic reactors. We found that the kinetic decay was faster in the aerobic reactors inoculated with a Spanish (Spn) inoculum compared to a Brazilian (Brz) inoculum, resulting in rection rates for LAS and SAS of 2.67 ± 3.6 h-1 and 5.09 ± 6 h-1 for the Brz reactors, and 1.3 ± 0.1 h-1 and 1.5 ± 0.2 h-1 for the Spn reactors, respectively. There was no evidence of LAS and SAS degradation under anaerobic conditions within 72 days; nonetheless, under aerobic conditions, these surfactants were removed by both the Brz and Spn inoculums (up to 86.2 ± 9.4% and 74.3 ± 0.7%, respectively) within 10 days. The artificial sweeteners were not removed under aerobic conditions, whereas we could observe a steady decrease in the anaerobic reactors containing the Spn inoculum. Ethanol aided in the degradation of surfactants in anaerobic environments. Proteiniphilum, Paraclostridium, Arcobacter, Proteiniclasticum, Acinetobacter, Roseomonas, Aquamicrobium, Moheibacter, Leucobacter, Synergistes, Cyanobacteria, Serratia, and Desulfobulbus were the main microorganisms identified in this study.
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Affiliation(s)
- Fabricio Motteran
- Geosciences Technology Center, Department of Civil and Environmental Engineering, Environmental Sanitation Laboratory and Laboratory of Molecular Biology and Environmental Technology, Federal University of Pernambuco, Ave. Arquitetura, s/n, Cidade Universitária, Recife, PA, Zipcode 50740-550, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Ave Trabalhador São-Carlense, n°. 400, São Carlos, São Paulo, Zipcode 13566-590, Brazil
| | - Pablo A Lara-Martin
- Department of Physical Chemistry, Faculty of Environmental and Marine Sciences, University of Cadiz (UCA), Campus Río San Pedro, 11510, Puerto Real (Cádiz), Andalusia, Spain
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10
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Dionizio BS, Rabelo CABS, de Jesus HCR, Varesche MBA, de Souza DHF. The Deconstruction of the Lignocellulolytic Structure of Sugarcane Bagasse by Laccases Improves the Production of H 2 and Organic Acids. Appl Biochem Biotechnol 2022; 194:3145-3166. [PMID: 35349085 DOI: 10.1007/s12010-022-03905-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 03/14/2022] [Indexed: 01/31/2023]
Abstract
The production of biofuels using sugarcane bagasse (SCB) as substrate can be considered an environmentally friendly approach, due to the possibility of combining energy production with the reuse of agroindustrial wastes. This study was undertaken to explore the applicability of a new extract with the enzymes (Lacmix) isolated from Chaetomium cupreum for SCB pretreatment. Lacmix was more active at pH of 2.2 to 4 and 50 to 60 °C. Further, the individual and mutual effects of SCB concentration (6.6 to 23.4 g L- 1), enzyme concentration (0.066 to 0.234 U L- 1), and incubation time of the SCB with Lacmix (19 to 221 min) on SCB pretreatment were evaluated using a response surface methodology and central composite design. The optimized conditions were 23.4 g L- 1 SCB, 0.234 U mL- 1 laccases, and 2.44 h resulting in 547 ± 108 mg L- 1 of total sugars. This value agrees with the predicted value (455 ± 41 mg L- 1) by the statistical model. Through the SCB pretreated with Lacmix fermentation, 96.1% more H2 and 22.5% more organic acids were observed compared to SCB without pretreatment. Therefore, laccases improve delignification, maximizing biomass fermentation for biofuel production.
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Affiliation(s)
- Bruna Soares Dionizio
- Chemistry Department, Federal University of São Carlos, Rod Washington Luis s/n, Km 235, 13565-905, São Carlos, SP, Brazil
| | - Camila Abreu B Silva Rabelo
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, 13563-120, São Carlos, SP, Brazil
| | - Hugo César Ramos de Jesus
- Chemistry Department, Federal University of São Carlos, Rod Washington Luis s/n, Km 235, 13565-905, São Carlos, SP, Brazil.,Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Maria Bernadete Amâncio Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, 13563-120, São Carlos, SP, Brazil
| | - Dulce Helena Ferreira de Souza
- Chemistry Department, Federal University of São Carlos, Rod Washington Luis s/n, Km 235, 13565-905, São Carlos, SP, Brazil.
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11
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Montoya ACV, da Silva Mazareli RC, Delforno TP, Centurion VB, de Oliveira VM, Silva EL, Varesche MBA. New Insights into Controlling Homoacetogenesis in the Co-digestion of Coffee Waste: Effect of Operational Conditions and Characterization of Microbial Communities. Appl Biochem Biotechnol 2021; 194:1458-1478. [PMID: 34739703 DOI: 10.1007/s12010-021-03725-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 10/08/2021] [Indexed: 11/29/2022]
Abstract
In this research batch reactors were operated with coffee processing waste and autochthonous microbial consortium, and a taxonomic and functional analysis was performed for phase I of stabilization of maximum H2 production and for phase II of maximum H2 consumption. During phase I, the reactor's operating conditions were pH 4.84 to 8.18, headspace 33.18% to 66.82%, and pulp and husk from 6.95 to 17.05 g/L. These assays continued for phase II, with initial pH conditions of 5.8-8.1, headspace of 33.18-66.82%, and pulp and husk remaining from phase I. The highest homoacetogenesis was observed in assay 5 with pH 7.7, 40% headspace, and 15 g/L of pulp and husk (initial concentrations of phase I). A relative abundance of Clostridium 41%, Lactobacillus 20% and Acetobacter 14% was observed in phase I. In phase II, there was a change in relative abundance of 21%, 63%, and 1%, respectively, and functional genes involved with autotrophic (formyltetrahydrofolate synthase) and heterotrophic (enolase) homoacetogenesis, butanol (3-hydroxybutyryl-CoA dehydrogenase), and propionic acid (propionate CoA-transferase) were identified. This study provides a new and amplified insight into the physicochemical and microbiological factors, which can be used to propose adequate operational conditions to maximize the bioenergy production and reduce homoacetogenesis in biological reactors.
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Affiliation(s)
- Alejandra Carolina Villa Montoya
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP, CEP 13563-120, Brazil.
| | - Raissa Cristina da Silva Mazareli
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP, CEP 13563-120, Brazil
| | | | - Victor Borin Centurion
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), State University of Campinas, Campinas, SP, CEP 13081-970, Brazil
| | - Valéria Maia de Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), State University of Campinas, Campinas, SP, CEP 13081-970, Brazil
| | - Edson Luiz Silva
- Center of Exact Sciences and Technology, Department of Chemical Engineering, Federal University of São Carlos, São Carlos, SP, CEP 13565-905, Brazil
| | - Maria Bernadete Amâncio Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP, CEP 13563-120, Brazil.
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12
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Camargo FP, Sakamoto IK, Delforno TP, Mariadassou M, Loux V, Midoux C, Duarte ICS, Silva EL, Bize A, Varesche MBA. Microbial and functional characterization of an allochthonous consortium applied to hydrogen production from Citrus Peel Waste in batch reactor in optimized conditions. J Environ Manage 2021; 291:112631. [PMID: 33932835 DOI: 10.1016/j.jenvman.2021.112631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/26/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Energy recovery from lignocellulosic waste has been studied as an alternative to the problem of inappropriate waste disposal. The present study aimed at characterizing the microbial community and the functional activity of reactors applied to H2 production through lignocellulosic waste fermentation in optimized conditions. The latter were identified by means of Rotational Central Composite Design (RCCD), applied to optimize allochthonous inoculum concentration (2.32-5.68 gTVS/L of granular anaerobic sludge), pH (4.32-7.68) and Citrus Peel Waste (CPW) concentration (1.55-28.45 g/L). After validation, the conditions identified for optimal H2 production were 4 gSTV/L of allochthonous inoculum, 29.8 g/L of CPW (substrate) and initial pH of 8.98. In these conditions, 48.47 mmol/L of H2 was obtained, which is 3.64 times higher than the concentration in unoptimized conditions (13.31 mmol H2/L using 15 g/L of CPW, 2 gTVS/L of allochthonous inoculum, pH 7.0). Acetogenesis was the predominant pathway, and maximal concentrations of 3,731 mg/L of butyric acid and 3,516 mg/L of acetic acid were observed. Regarding the metataxonomic profile, Clostridium genus was dramatically favored in the optimized condition (79.78%) when compared to the allochthonous inoculum (0.43%). It was possible to identify several genes related to H2 (i.e dehydrogenases) and volatile fatty acids (VFA) production and with cellulose degradation, especially some CAZymes from the classes Auxiliary Activities, Glycoside Hydrolases and Glycosyl Transferase. By means of differential gene expression it was observed that cellulose degradation and acetic acid production pathways were overabundant in samples from the optimized reactors, highlighting endo-β-1,4-glucanase/cellulose, endo-β-1,4-xylanase, β-glucosidase, β-mannosidase, cellulose β-1,4-cellobiosidase, cellobiohydrolase, and others, as main the functions.
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Affiliation(s)
- Franciele Pereira Camargo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo (USP), Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo (USP), Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil
| | - Tiago Palladino Delforno
- Department of Biology, Federal University of São Carlos (UFSCar), João Leme dos Santos Highway, Km 101, zipcode 18052-780, Sorocaba, São Paulo, Brazil
| | - Mahendra Mariadassou
- Université Paris-Saclay, INRAE, BioinfOmics, MIGALE Bioinformatics Facility, 78350, Jouy-en-Josas, France; Université Paris Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
| | - Valentin Loux
- Université Paris-Saclay, INRAE, BioinfOmics, MIGALE Bioinformatics Facility, 78350, Jouy-en-Josas, France; Université Paris Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
| | - Cédric Midoux
- Université Paris-Saclay, INRAE, BioinfOmics, MIGALE Bioinformatics Facility, 78350, Jouy-en-Josas, France; Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement (PROSE), 92761, Antony, France; Université Paris Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
| | - Iolanda Cristina Silveira Duarte
- Department of Biology, Federal University of São Carlos (UFSCar), João Leme dos Santos Highway, Km 101, zipcode 18052-780, Sorocaba, São Paulo, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos (UFSCar), Rod Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, SP, Brazil
| | - Ariane Bize
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement (PROSE), 92761, Antony, France
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo (USP), Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil.
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Gomes MM, Sakamoto IK, Silva Rabelo CAB, Silva EL, Varesche MBA. Statistical optimization of methane production from brewery spent grain: Interaction effects of temperature and substrate concentration. J Environ Manage 2021; 288:112363. [PMID: 33756388 DOI: 10.1016/j.jenvman.2021.112363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 02/16/2021] [Accepted: 03/07/2021] [Indexed: 06/12/2023]
Abstract
This study evaluated the effects of thermal pretreatment of brewery spent grain (BSG) (by autoclave 121 °C, 1.45 atm for 30 min) on methane production (CH4). Operation temperature (31-59 °C) and substrate concentration (8.3-19.7 g BSG.L-1) factors were investigated by Response Surface Methodology (RSM) and Central Composite Design (CCD). Values ranging from 81.1 ± 2.0 to 290.1 ± 3.5 mL CH4.g-1 TVS were obtained according to operation temperature and substrate concentration variation. The most adverse condition for methanogenesis (81.1 ± 2.0 mL CH4.g-1 TVS) was at 59 °C and 14 g BSG.L-1, in which there was increase in the organic matter concentration from 173.6 ± 4.94 to 3036 ± 7.78 mg.L-1) result of a higher final concentration of volatile fatty acids (VFA, 2662.7 mg.L-1). On the other hand, the optimum condition predicted by the statistical model was at 35 °C and 18 g BSG.L-1 (289.1 mL CH4.g-1 TVS), which showed decrease in the organic matter concentration of 78.6% and a lower final concentration of VFA (533.2 mg.L-1). Hydrogenospora and Methanosaeta were identified in this optimum CH4 production condition, where acetoclastic methanogenic pathway prevailed. The CH4 production enhancement was concomitant to acetic acid concentration decrease (from 578.9 to 135.7 mg.L-1).
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Affiliation(s)
- Marina Mauro Gomes
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP CEP, 13563-120, Brazil.
| | - Isabel Kimiko Sakamoto
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP CEP, 13563-120, Brazil
| | - Camila Abreu B Silva Rabelo
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP CEP, 13563-120, Brazil
| | - Edson Luiz Silva
- Center of Exact Sciences and Technology, Department of Chemical Engineering, Federal University of São Carlos, São Carlos, SP CEP, 13565-905, Brazil
| | - Maria Bernadete Amâncio Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Campus II, São Carlos, SP CEP, 13563-120, Brazil.
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14
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da Silva GF, Mathias SL, de Menezes AJ, Vicente JGP, Delforno TP, Varesche MBA, Duarte ICS. Orange Bagasse Pellets as a Carbon Source for Biobutanol Production. Curr Microbiol 2020; 77:4053-4062. [PMID: 33057752 DOI: 10.1007/s00284-020-02245-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022]
Abstract
Due to the environmental concerns, the conversion of lignocellulosic waste can be the key to produce bioproducts and biofuels such as butanol. This study aimed to present and evaluate orange bagasse pellets (OBP) as a carbon source to produce butan-1-ol production via ABE fermentation using Clostridium beijerinckii. These bagasse pellets were characterized, holocellulose (18.99%), alfacellulose (5.37%), hemicellulose (13.62%), lignin (6.16%), pectin (7.21%), protein (3.14%), and was tested under three different pretreatments, which were the following: (a) ultrasound, (b) autohydrolysis, and (c) acid-diluted hydrolysis followed by enzymatic hydrolysis to verify an amount of fermentable total reducing sugars. ANOVA was used and pretreatments followed by enzymatic hydrolysis do not enhance a significant amount of available sugars compared to raw bagasse. The ABE fermentation was carried out in batch reactors at 37 °C under agitation of 160 rpm and anaerobic conditions, using OBP without treatment followed by enzymatic hydrolysis. Using a non-mutant microorganism, the fermentation achieved butyric acid yields of 3762.68 mg L-1 for control and 2488.82 mg L-1 for OBP and the butanol production was 63.86 mg L-1 and 196.80 mg L-1 for OBP and the control (glucose) assay, respectively. The results of this solvent's production have shown that OBP has the potential for ABE fermentation and a promising feedstock.
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Affiliation(s)
- Gabriela Fiori da Silva
- Department of Biology, Federal University of São Carlos-UFSCar, Campus Sorocaba, Rodovia João Leme dos Santos km 110 SP-264, Bairro Itinga, Sorocaba, SP, 18052-780, Brazil.
| | - Samir Leite Mathias
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos-UFSCar, Campus Sorocaba, Sorocaba, SP, 18052-780, Brazil
| | - Aparecido Junior de Menezes
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos-UFSCar, Campus Sorocaba, Sorocaba, SP, 18052-780, Brazil
| | | | - Tiago Palladino Delforno
- Department of Biology, Federal University of São Carlos-UFSCar, Campus Sorocaba, Rodovia João Leme dos Santos km 110 SP-264, Bairro Itinga, Sorocaba, SP, 18052-780, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo-USP, São Paulo, SP, Brazil
| | - Iolanda Cristina Silveira Duarte
- Department of Biology, Federal University of São Carlos-UFSCar, Campus Sorocaba, Rodovia João Leme dos Santos km 110 SP-264, Bairro Itinga, Sorocaba, SP, 18052-780, Brazil
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15
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Dornelles HDS, Motteran F, Sakamoto IK, Silva EL, Varesche MBA. 4-Nonylphenol degradation changes microbial community of scale-up Anaerobic Fluidized Bed Reactor. J Environ Manage 2020; 267:110575. [PMID: 32349961 DOI: 10.1016/j.jenvman.2020.110575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/10/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
Nonylphenol Ethoxylate (NPe) is a nonionic surfactant widely applied in domestic and industrial uses and its degradation generates the endocrine disruptor 4-Nonylphenol (4-NP). The effects of this compound in biological sewage treatment are uncertain, especially in anaerobic systems. The aim of this study was to assess the 4-NP removal and degradation in scale-up (20 L) Anaerobic Fluidized Bed Reactor (AFBR) filled with sand as support material, operated with Hydraulic Retention Time (HRT) of 18 h, fed with synthetic sewage plus 4-NP, performed in four phases named Phase I (894 mg COD L-1), Phase II (878 mg COD L-1, 127 μg 4-NP L-1), Phase III (940 mg COD L-1, 270 μg 4-NP L-1) and Phase IV (568 mg COD L-1, 376 μg 4-NP L-1). 4-NP did not affect reactor stability and organic matter removal remained stable at 94%. Highest 4-NP removal (78%) occurred for highest 4-NP influent (Phase IV), which resulted from biomass adaptation in the presence of ethanol. Through the 4-NP total mass balance, about 70% was biodegraded and 1% adsorbed on the sand bed. 4-NP addition promoted selection of microbial consortium strongly linked to aromatic compounds and surfactants degradation such as Geothrix, Holophaga, Aeromonas, Pelobacter, Pseudomonas, Delftia.
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Affiliation(s)
- Henrique de Souza Dornelles
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Fabrício Motteran
- Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, São Paulo, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering (EESC), University of São Paulo (USP), Bloco 4-F, Av. João Dagnone, 1100 Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
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Andrade MVF, Delforno TP, Sakamoto IK, Silva EL, Varesche MBA. Dynamics and response of microbial diversity to nutritional conditions in denitrifying bioreactor for linear alkylbenzene sulfonate removal. J Environ Manage 2020; 263:110387. [PMID: 32174528 DOI: 10.1016/j.jenvman.2020.110387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
The aim of this study was to evaluate the microbial structure and phylogenetic diversity under the influence of nutritional conditions and hydraulic retention time (HRT) in fluidized bed reactors (FBR), operated in short HRT (8 h - FBR8; 12 h - FBR12) for linear alkylbenzene sulfonate (LAS) removal from laundry wastewater. After each phase, biofilm samples from FBR8 and FBR12 were submitted to microbial sequencing by Mi-Seq Illumina®. Higher LAS removal rates were observed after 313 days, achieving 99 ± 3% in FBR12 (22.5 ± 5.9 mg LAS/L affluent) and 93 ± 12% in FBR8 (20.6 ± 4.4 mg LAS/L affluent). Different modifications involving genera of bacteria were observed throughout the reactors operation. The identified microorganisms were, mostly, related to LAS degradation and nitrogen conversion such as Dechloromonas, Flavobacterium, Pseudomonas, and Zoogloea.
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Affiliation(s)
| | - Tiago Palladino Delforno
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, Campinas, 13081-970, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense, 13566-590, São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense, 13566-590, São Carlos, SP, Brazil
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Silva Rabelo CAB, Okino CH, Sakamoto IK, Varesche MBA. Isolation of Paraclostridium CR4 from sugarcane bagasse and its evaluation in the bioconversion of lignocellulosic feedstock into hydrogen by monitoring cellulase gene expression. Sci Total Environ 2020; 715:136868. [PMID: 32014768 DOI: 10.1016/j.scitotenv.2020.136868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 05/15/2023]
Abstract
Bioconversion of sugarcane bagasse (SCB) into hydrogen (H2) and organic acids was evaluated using a biomolecular approach to monitor the quantity and expression of the cellulase (Cel) gene. Batch reactors at 37 °C were operated with Paraclostridium sp. (10% v/v) and different substrates (5 g/L): glucose, cellulose and SCB in natura and pre-heat treated and hydrothermally. H2 production from glucose was 162.4 mL via acetic acid (2.9 g/L) and 78.4 mL from cellulose via butyric acid (2.9 g/L). H2 production was higher in hydrothermally pretreated SCB reactors (92.0 mL), heat treated (62.5 mL), when compared to in natura SCB (51.4 mL). Butyric acid (5.8, 4.9 and 4.0 g/L) was the main acid observed in hydrothermally, thermally pretreated, and in natura SCB, respectively. In the reactors with cellulose and reactors with hydrothermally pretreated SCB, the Cel gene copy number 3 and 2 log were higher, respectively, during the stage of maximum H2 production rate, when compared to the initial stage. Differences in Cel gene expression were observed according to the concentration of soluble sugars in the reaction medium. That is, there was no gene expression at the initial phase of the experiment using SCB with 2.6 g/L of sugars and increase of 2.2 log in gene expression during the phases with soluble sugars of <1.4 g/L.
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Affiliation(s)
- Camila Abreu B Silva Rabelo
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - Cintia Hiromi Okino
- Embrapa Pecuária Sudeste, Rod Washington Luiz, Km 234, Fazenda Canchim, PO Box 339, São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil
| | - Maria Bernadete Amâncio Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil
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18
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Ramos LR, de Menezes CA, Soares LA, Sakamoto IK, Varesche MBA, Silva EL. Controlling methane and hydrogen production from cheese whey in an EGSB reactor by changing the HRT. Bioprocess Biosyst Eng 2019; 43:673-684. [PMID: 31834467 DOI: 10.1007/s00449-019-02265-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 12/03/2019] [Indexed: 10/25/2022]
Abstract
This study assessed the effects of hydraulic retention time (HRT; 8 h-0.25 h) on simultaneous hydrogen and methane production from cheese whey (5000 mg carbohydrates/L) in a mesophilic (30 °C) expanded granular sludge bed (EGSB) reactor. Methane production was observed at HRTs from 4 to 0.25 h. The maximum methane yield (9.8 ± 1.9 mL CH4/g CODap, reported as milliliter CH4 per gram of COD applied) and methane production rate (461 ± 75 mL CH4/day Lreactor) occurred at HRTs of 4 h and 2 h, respectively. Hydrogen production increased as methane production decreased with decreasing HRT from 8 to 0.25 h. The maximum hydrogen yield of 3.2 ± 0.3 mL H2/g CODap (reported as mL H2 per gram of COD applied) and hydrogen production rate of 1951 ± 171 mL H2/day Lreactor were observed at the HRT of 0.25 h. The decrease in HRT from 8 to 0.25 h caused larger changes in the bacterial populations than the archaea populations. With the decrease in HRT (6 h-0.25 h), the Shannon diversity index decreased (3.02-2.87) for bacteria and increased (1.49-1.83) for archaea. The bacterial dominance increased (0.059-0.066) as the archaea dominance decreased (0.292-0.201) with the HRT decrease from 6 to 0.25 h.
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Affiliation(s)
- Lucas Rodrigues Ramos
- Department of Chemical Engineering, Federal University of São Carlos. Rod. Washington Luis, km 235, São Carlos/SP, 13565-905, Brazil
| | - Camila Aparecida de Menezes
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo. Av. João Dagnone, 1100, Jd. Santa Angelina, São Carlos/SP, 13563-120, Brazil
| | - Laís Américo Soares
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo. Av. João Dagnone, 1100, Jd. Santa Angelina, São Carlos/SP, 13563-120, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo. Av. João Dagnone, 1100, Jd. Santa Angelina, São Carlos/SP, 13563-120, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo. Av. João Dagnone, 1100, Jd. Santa Angelina, São Carlos/SP, 13563-120, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos. Rod. Washington Luis, km 235, São Carlos/SP, 13565-905, Brazil.
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Moura AGL, Centurion VB, Okada DY, Motteran F, Delforno TP, Oliveira VM, Varesche MBA. Laundry wastewater and domestic sewage pilot-scale anaerobic treatment: Microbial community resilience regarding sulfide production. J Environ Manage 2019; 251:109495. [PMID: 31539699 DOI: 10.1016/j.jenvman.2019.109495] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/28/2019] [Accepted: 08/28/2019] [Indexed: 05/07/2023]
Abstract
In this study, the removal of anionic surfactant Linear Alkylbenzene Sulfonate (LAS) from laundry wastewater was evaluated in co-digestion with domestic sewage, using a pilot-scale Expanded Granular Sludge Bed reactor. Surfactant influent concentration was enhanced from 5 ± 3 mg LAS L-1 (stage I) to 19 ± 10 mg LAS L-1 (stage II) and 36 ± 19 mg LAS L-1 (stage III) throughout reactor operation. Sulfide levels higher than 20 mg L-1 influenced LAS removal efficiency, which decreased from 71% to 55% and 32% in stage I, II and III, respectively. Acclimation of microbial population was verified and higher relative abundance of the genera similar to Cytophaga, Bacteroides, Syntrophus and Syntrophobacter in the early stages (adaptation and stage I) was replaced by higher relative abundance of the genera Anaerophaga, Nitrosovibrio, Sulfurovum and Desulfovibrio in the last stages (stage II and III).
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Affiliation(s)
- A G L Moura
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP, Brazil.
| | - V B Centurion
- Microbial Resources Division, Research Centre for Chemistry, Biology and Agriculture (CPQBA), Campinas University, UNICAMP, Campinas, SP, Brazil.
| | - D Y Okada
- School of Technology, Division of Technology in Environment Sanitation, Campinas University, UNICAMP, Limeira, SP, Brazil.
| | - F Motteran
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP, Brazil.
| | - T P Delforno
- Microbial Resources Division, Research Centre for Chemistry, Biology and Agriculture (CPQBA), Campinas University, UNICAMP, Campinas, SP, Brazil.
| | - V M Oliveira
- Microbial Resources Division, Research Centre for Chemistry, Biology and Agriculture (CPQBA), Campinas University, UNICAMP, Campinas, SP, Brazil.
| | - M B A Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos, University of São Paulo (EESC - USP) Campus II, São Carlos, SP, Brazil.
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Mazareli RCDS, Sakamoto IK, Silva EL, Varesche MBA. Bacillus sp. isolated from banana waste and analysis of metabolic pathways in acidogenic systems in hydrogen production. J Environ Manage 2019; 247:178-186. [PMID: 31247365 DOI: 10.1016/j.jenvman.2019.06.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/13/2019] [Accepted: 06/08/2019] [Indexed: 06/09/2023]
Abstract
The autochthonous bacterial strain was isolated from banana waste (BW) for hydrogen production and organic acids from different pure substrates and BW. The potential production of H2 and metabolic pathways were analyzed at pH 7.0 at 37 °C. Facultative anaerobic bacterium similar to Bacillus sp. was identified, with generation time (Tg) and growth rate (μ) of 0.43 h and 1.60 h-1, respectively, from glucose. The hydrogen production (P) using pure substrates was observed between 10.81 mmol.L-1 and 17.75 mmol.L-1 from xylose and maltose, respectively. The biggest and smallest hydrogen P of 18.77 mmol.L-1 and 1.72 mmol.L-1, were obtained with 3.5 and 0.5 g.L-1 of cellobiose, respectively. The highest hydrogen yield (126.93 mL.g-1carbohydrates added) was obtained with 2 g.L-1 cellobiose. In the assay using banana waste (5 g.L-1) the maximum P and yield (YH2) of 31.7 mmol.L-1 and 94.66 mL H2 g-1carbohydrates added, was obtained respectively. The main metabolic pathway of hydrogen production by Bacillus sp. RM1 from banana waste was acetic-butyric acid of 487.69 g.L-1 and 535.88 g.L-1, respectively. The accessibility of various carbon sources by Bacillus sp. RM1 in fermentation can benefit the hydrogen production from complex organic substrates in the bioaugmentation process.
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Affiliation(s)
- Raissa Cristina da Silva Mazareli
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil.
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil.
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, SP, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590, São Carlos, SP, Brazil.
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21
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Soares LA, Silva Rabelo CAB, Sakamoto IK, Silva EL, Varesche MBA. Screening and Bioprospecting of Anaerobic Consortia for Biofuel Production Enhancement from Sugarcane Bagasse. Appl Biochem Biotechnol 2019; 190:232-251. [PMID: 31332677 DOI: 10.1007/s12010-019-03074-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/05/2019] [Indexed: 01/21/2023]
Abstract
The genera Dysgonomonas, Coprococcus, Sporomusa, Bacteroides, Sedimentibacter, Pseudomonas, Ruminococcus, and Clostridium predominate in compost residue, and vadimCA02, Anaerobaculum, Tatlockia, Caloramator, and Syntrophus prevail in soil used as inoculum in batch rectors. This mixed consortium was used as inoculum for biogas production using different concentrations of sugarcane bagasse (SCB) (from 1.58 to 4.42 g/L) and yeast extract (YE) (from 0.58 to 3.42 g/L) according to a composite central design. The maximum ethanol production (20.11 mg L-1) was observed using 2.0 and 3.0 g L-1 of YE and SCB, respectively (C6). Likewise, the highest hydrogen production (0.60 mmol L-1) was observed using 3.0 and 4.0 g L-1 of YE and SCB, respectively (C1). Methane was also observed, reaching the maximum production (1.44 mmol L-1) using 1.0 and 4.0 g L-1 of YE and SCB, respectively (C2). The archaeal similarity between these conditions was above 90%; however, the richness and diversity were higher in the C2 (12 and 2.42, respectively) than in C1 (5 and 1.43, respectively) and C6 (11 and 2.29, respectively). Equally, the bacterial similarity between C1 and C6 was 60% while richness of 24 and 17 and diversity of 3.13 and 2.81 were observed in C1 and C6, respectively.
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Affiliation(s)
- Laís Américo Soares
- University of São Paulo, João Dagnone Avenue, 1100, São Carlos, SP, 13563-120, Brazil.
| | | | | | - Edson Luís Silva
- Federal University of São Carlos, Rod Washington Luis, Km 235, São Carlos, SP, 13565-905, Brazil
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Kasemodel MC, Sakamoto IK, Varesche MBA, Rodrigues VGS. Potentially toxic metal contamination and microbial community analysis in an abandoned Pb and Zn mining waste deposit. Sci Total Environ 2019; 675:367-379. [PMID: 31030143 DOI: 10.1016/j.scitotenv.2019.04.223] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/28/2019] [Accepted: 04/14/2019] [Indexed: 05/20/2023]
Abstract
Bioindicators have been widely used to assess the contamination of lead/zinc (Pb/Zn) in smelter areas, mining waste disposal areas and in areas containing slags from Pb ore smelting. In this context, the analysis involving microorganisms has gained prominence as a complementary tool in studies aimed at assessing contaminated sites. Therefore, the objective of this study was to assess the contamination of Pb, Zn and cadmium (Cd) in an area where a PbZn smelter operated, using the integration of geochemical and microbial data. The experimental analysis was conducted to characterize the soil collected at three different sites (samples NS, EW and EP). The analysis conducted was physicochemical, metal concentration, metal speciation and analysis of the microbial community through high-throughput sequencing technique. Through the results it was observed that the high concentrations of metals altered the bacterial community present in the soil. Differences were noted between the microbial communities according to the sampling site, especially in sample EP, collected at the margin of the dirt road, which presented higher metal concentrations and microbial diversity. The main phyla detected in the samples were: Proteobacteria, Bacteroidetes and Acidobacteria. Bacteria tolerant to the presence of potentially toxic metals (PTM), such as Rhodoplanes, Kaistobacter, Sphingomonas and Flavisolibacter were identified in the analyzed samples. The phylogenetic groups identified in the study area are similar to those obtained in other studies in metal contaminated areas. The differences between the bacterial communities in each sample indicate that the concentration of PTM may have influenced the microbial community in the soil. Thus, it is noted the importance of the integration of geochemical and microbial data to evaluate the impact of the improper disposal of high PTM concentrated slags in natural soils.
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23
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Faria CVD, Delforno TP, Okada DY, Varesche MBA. Evaluation of anionic surfactant removal by anaerobic degradation of commercial laundry wastewater and domestic sewage. Environ Technol 2019; 40:988-996. [PMID: 29210595 DOI: 10.1080/09593330.2017.1414317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
An expanded granular sludge bed reactor was evaluated for the anaerobic digestion of commercial laundry wastewater and domestic sewage focused on the removal of linear alkylbenzene sulfonate (LAS). The reactor was operated in three stages, all under mesophilic conditions and with a hydraulic retention time of 36 h. At stage I, the laundry wastewater was diluted with tap water (influent: 15.3 ± 4.9 mg LAS/L); at stage II, 50% of the feed volume was domestic sewage and 50% was a mixture of tap water and laundry wastewater (influent: 15.8 ± 4.9 mg LAS/L); and at stage III, only domestic sewage was used as a diluent of the laundry wastewater (influent: 24.1 ± 4.1 mg LAS/L). Due to the addition of domestic sewage the organic compounds content and LAS in the influent increased. Under such conditions, it was observed that LAS removal rate decreased from 77.2 ± 14.9% (stage I) to 55.3 ± 18.4% (stage III). Statistical tests indicated that the decrease of the LAS removal rate was significant and indicated a correlation between the removal of LAS and specific organic loading rate. The analysis of 16S rRNA gene sequencing revealed genera similar to Geobacter, Desulfovibrio, Syntrophomonas, Syntrophus, Desulfobulbus, Desulfomonile, and Desulfomicrobium, which were related to the degradation of LAS.
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Affiliation(s)
- Clara Vieira de Faria
- a Laboratory of Biological Processes, Department of Hydraulics and Sanitation , Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II , São Carlos , Brazil
| | - Tiago Palladino Delforno
- b Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA) , Campinas University - UNICAMP , Campinas , Brazil
| | - Dagoberto Yukio Okada
- c University of Campinas (UNICAMP), School of Technology , Division of Technology in Environment Sanitation , Limeira , Brazil
| | - Maria Bernadete Amâncio Varesche
- a Laboratory of Biological Processes, Department of Hydraulics and Sanitation , Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II , São Carlos , Brazil
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Motteran F, Nadai BM, Braga JK, Silva EL, Varesche MBA. Metabolic routes involved in the removal of linear alkylbenzene sulfonate (LAS) employing linear alcohol ethoxylated and ethanol as co-substrates in enlarged scale fluidized bed reactor. Sci Total Environ 2018; 640-641:1411-1423. [PMID: 30021307 DOI: 10.1016/j.scitotenv.2018.05.375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/28/2018] [Accepted: 05/30/2018] [Indexed: 06/08/2023]
Abstract
In this study, the microbial community characterization and metabolic pathway identification involved in the linear alkylbenzene sulfonated (LAS) degradation from commercial laundry wastewater in a fluidized bed reactor (FBR) on an increased scale were performed using the Illumina MiSeq platform. Ethanol and non-ionic surfactant (LAE, Genapol C-100) were used as co-substrates. The FBR was operated in five operational phases: (I) synthetic substrate for inoculation; (II) 7.9 ± 4.7 mg/L LAS and 11.7 ± 6.9 mg/L LAE; (III) 19.4 ± 12.9 mg/L LAS, 19.6 ± 9.2 mg/L LAE and 205 mg/L ethanol; (IV) 25.9 ± 11 mg/L LAS, 19.5 ± 9.1 mg/L LAE and 205 mg/L ethanol and (V) 43.9 ± 18 mg/L LAS, 25 ± 9.8 mg/L LAE and 205 mg/L ethanol. At all operation phases, organic matter was removed from 40.4 to 85.1% and LAS removal was from 24.7 to 56%. Sulfate-reducing bacteria (SRB) were identified in the biofilm of FBR in all operational phases. Although the LAS promoted a toxic effect on the microbiota, this effect can be reduced when using biodegradable co-substrates, such as ethanol and LAE, which was observed in Phase IV. In this phase, there was a greater microbial diversity (Shannon index) and higher microorganism richness (Chao 1 index), both for the Domain Bacteria, and for the Domain Archaea.
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Affiliation(s)
- Fabricio Motteran
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil.
| | - Bianca Marques Nadai
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Juliana Kawanishi Braga
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905 São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil.
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25
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Rabelo CABS, Soares LA, Sakamoto IK, Silva EL, Varesche MBA. Optimization of hydrogen and organic acids productions with autochthonous and allochthonous bacteria from sugarcane bagasse in batch reactors. J Environ Manage 2018; 223:952-963. [PMID: 30007891 DOI: 10.1016/j.jenvman.2018.07.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
The individual and mutual effects of substrate concentration (from 0.8 to 9.2 g/L) and pH (from 4.6 to 7.4) on hydrogen and volatile fatty acids production from sugarcane bagasse (SCB) were investigated in batch reactors, using a response surface methodology (RSM) and central composite design (CCD). The maximum of 23.10 mmoL H2/L was obtained under optimized conditions of 7.0 g SCB/L and pH 7.2, at 37 °C through the acetic acid pathway (1.57 g/L). Butyric and succinic acids were the major volatile fatty acids (VFA) produced in the fermentation process (from 0.66 to 1.88 g/L and from 1.06 to 1.65 g/L, respectively). According to the results, the RSM and CCD were useful tools to achieve high hydrogen production rates using Clostridium, Bacillus and Enterobacter, identified by Illumina sequencing (16S RNAr) in the fermentative consortium, and Clostridium and Paenibacillus, autochthonous bacteria from SCB. Significant changes were observed in the microbial community according to the changes in the independent variables, since the genera in the central point condition (5.0 g SCB/L and pH 6.0) were Lactobacillus, Escherichia and Clostridium, and Bacteroides and Enterobacter, which were identified in the optimized condition (7.0 g SCB/L and pH 7.2).
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Affiliation(s)
| | - Laís Américo Soares
- University of São Paulo, João Dagnone Avenue, 1100, CEP 13563-120, São Carlos, SP, Brazil.
| | - Isabel Kimiko Sakamoto
- University of São Paulo, João Dagnone Avenue, 1100, CEP 13563-120, São Carlos, SP, Brazil.
| | - Edson Luiz Silva
- Federal University of São Carlos, Rod Washington Luis, Km 235, 13565-905, São Carlos, SP, Brazil.
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Soares LA, Braga JK, Motteran F, Sakamoto IK, Silva EL, Varesche MBA. Design and optimization of hydrogen production from hydrothermally pretreated sugarcane bagasse using response surface methodology. Water Sci Technol 2017; 76:95-105. [PMID: 28708614 DOI: 10.2166/wst.2017.183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydrogen production from hydrothermally pretreated (200 °C for 10 min at 16 bar) sugarcane bagasse was analyzed using response surface methodology. The yeast extract concentration and the temperature had a significant influence for hydrogen production (p-value 0.027 and 0.009, respectively). Maximum hydrogen production (17.7 mmol/L) was observed with 3 g/L yeast extract at 60 °C (C10). In this conditions were produced acetic acid (50.44 mg/L), butyric acid (209.71 mg/L), ethanol (38.4 mg/L), and methane (6.27 mmol/L). Lower hydrogen productions (3.5 mmol/L and 3.9 mmol/L) were observed under the conditions C7 (2 g/L of yeast extract, 35.8 °C) and C9 (1 g/L of yeast extract, 40 °C), respectively. The low yeast extract concentration and low temperature caused a negative effect on the hydrogen production. By means of denaturing gradient gel electrophoresis 20% of similarity was observed between the archaeal population of mesophilic (35 and 40 °C) and thermophilic (50, 60 and 64 °C) reactors. Likewise, similarity of 22% was noted between the bacterial population for the reactors with the lowest hydrogen production (3.5 mmol/L), at 35.8 °C and with the highest hydrogen production (17.7 mmol/L) at 60 °C demonstrating that microbial population modification was a function of incubation temperature variation.
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Affiliation(s)
- Lais Américo Soares
- Department of Hydraulic and Sanitation Engineering, University of São Paulo, Avenida João Dagnone, 1100, São Carlos, SP 13563-120, Brazil E-mail:
| | - Juliana Kawanishi Braga
- Department of Hydraulic and Sanitation Engineering, University of São Paulo, Avenida João Dagnone, 1100, São Carlos, SP 13563-120, Brazil E-mail:
| | - Fabrício Motteran
- Department of Hydraulic and Sanitation Engineering, University of São Paulo, Avenida João Dagnone, 1100, São Carlos, SP 13563-120, Brazil E-mail:
| | - Isabel Kimiko Sakamoto
- Department of Hydraulic and Sanitation Engineering, University of São Paulo, Avenida João Dagnone, 1100, São Carlos, SP 13563-120, Brazil E-mail:
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod Washington Luis, Km 235, São Carlos, SP 13565-905, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulic and Sanitation Engineering, University of São Paulo, Avenida João Dagnone, 1100, São Carlos, SP 13563-120, Brazil E-mail:
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Delforno TP, Lacerda GV, Sierra-Garcia IN, Okada DY, Macedo TZ, Varesche MBA, Oliveira VM. Metagenomic analysis of the microbiome in three different bioreactor configurations applied to commercial laundry wastewater treatment. Sci Total Environ 2017; 587-588:389-398. [PMID: 28249753 DOI: 10.1016/j.scitotenv.2017.02.170] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/20/2017] [Accepted: 02/20/2017] [Indexed: 05/10/2023]
Abstract
The taxonomic and functional diversity of three different biological reactors (fluidized bed reactor, FBR; up-flow anaerobic sludge blanket reactor, UASB; and expanded granular sludge bed reactor, EGSB) used for commercial laundry wastewater treatment was investigated using metagenome shotgun sequencing. Metagenomes were sequenced on the Illumina Hiseq platform and were analyzed using MG-RAST, STAMP and PAST software. The EGSB and UASB reactors were more closely related based on taxonomic and functional profiles, likely due to similar granular sludge and procedures adopted to ensure anaerobic conditions. The EGSB and UASB reactors showed a predominance of methanogens and genes related to methanogenesis, with a prevalence of the acetoclastic pathway, in addition to the peripheral and central O2-independent pathways for aromatic compound degradation. By contrast, FBR showed a dominance of aerobic microbiota and pathways for O2-dependent aromatic compound degradation. Therefore, although the reactors showed similar surfactant removal levels, the microbial composition, functional diversity and aromatic compound degradation pathways were significantly distinct.
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Affiliation(s)
- T P Delforno
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, Campinas, SP CEP 13081-970, Brazil.
| | - G V Lacerda
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, Campinas, SP CEP 13081-970, Brazil.
| | - I N Sierra-Garcia
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, Campinas, SP CEP 13081-970, Brazil.
| | - D Y Okada
- School of Technology, Division of Technology in Environment Sanitation, Campinas University - UNICAMP, Limeira, SP CEP 13484-332, Brazil.
| | - T Z Macedo
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP), Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - M B A Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP), Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - V M Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, Campinas, SP CEP 13081-970, Brazil.
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Celiberto LS, Bedani R, Dejani NN, Ivo de Medeiros A, Sampaio Zuanon JA, Spolidorio LC, Tallarico Adorno MA, Amâncio Varesche MB, Carrilho Galvão F, Valentini SR, Font de Valdez G, Rossi EA, Cavallini DCU. Effect of a probiotic beverage consumption (Enterococcus faecium CRL 183 and Bifidobacterium longum ATCC 15707) in rats with chemically induced colitis. PLoS One 2017; 12:e0175935. [PMID: 28437455 PMCID: PMC5402984 DOI: 10.1371/journal.pone.0175935] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 04/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background Some probiotic strains have the potential to assist in relieving the symptoms of inflammatory bowel disease. The impact of daily ingestion of a soy-based product fermented by Enterococcus faecium CRL 183 and Lactobacillus helveticus 416 with the addition of Bifidobacterium longum ATCC 15707 on chemically induced colitis has been investigated thereof within a period of 30 days. Methods Colitis was induced by dextran sulfate sodium. The animals were randomly assigned into five groups: Group C: negative control; Group CL: positive control; Group CLF: DSS with the fermented product; Group CLP: DSS with the non-fermented product (placebo); Group CLS: DSS with sulfasalazine. The following parameters were monitored: disease activity index, fecal microbial analyses, gastrointestinal survival of probiotic microorganisms and short-chain fatty acids concentration in the feces. At the end of the protocol the animals’ colons were removed so as to conduct a macroscopical and histopathological analysis, cytokines and nitrite quantification. Results Animals belonging to the CLF group showed fewer symptoms of colitis during the induction period and a lower degree of inflammation and ulceration in their colon compared to the CL, CLS and CLP groups (p<0.05). The colon of the animals in groups CL and CLS presented severe crypt damage, which was absent in CLF and CLP groups. A significant increase in the population of Lactobacillus spp. and Bifidobacterium spp. at the end of the protocol was verified only in the CLF animals (p<0.05). This group also showed an increase in short-chain fatty acids (propionate and acetate). Furthermore, the intestinal survival of E. faecium CRL 183 and B. longum ATCC 15707 in the CLF group has been confirmed by biochemical and molecular analyzes. Conclusions The obtained results suggest that a regular intake of the probiotic product, and placebo to a lesser extent, can reduce the severity of DSS-induced colitis on rats.
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Affiliation(s)
- Larissa Sbaglia Celiberto
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
| | - Raquel Bedani
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Naiara Naiana Dejani
- Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto. Departamento de Bioquimica e Imunologia, SP, Brasil
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - Alexandra Ivo de Medeiros
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - José Antonio Sampaio Zuanon
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquara. Departametno de Fisiologia e Patologia, SP, Brasil
| | - Luis Carlos Spolidorio
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquara. Departametno de Fisiologia e Patologia, SP, Brasil
| | - Maria Angela Tallarico Adorno
- Universidade de São Paulo (USP), Faculdade de Engenharia, São Carlos. Departamento de Hidraúlica e Saneamento, SP, Brasil
| | | | - Fábio Carrilho Galvão
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - Sandro Roberto Valentini
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | | | - Elizeu Antonio Rossi
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
| | - Daniela Cardoso Umbelino Cavallini
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
- * E-mail:
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Andrade MVF, Sakamoto IK, Corbi JJ, Silva EL, Varesche MBA. Effects of hydraulic retention time, co-substrate and nitrogen source on laundry wastewater anionic surfactant degradation in fluidized bed reactors. Bioresour Technol 2017; 224:246-254. [PMID: 27847235 DOI: 10.1016/j.biortech.2016.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/31/2016] [Accepted: 11/01/2016] [Indexed: 05/12/2023]
Abstract
The aim of this study was to evaluate the influence of hydraulic retention time (HRT) on linear alkylbenzene sulfonate (LAS) removal in fluidized bed reactors (FBRs). FBR1 (HRT of 8h) and FBR2 (HRT of 12h) were fed laundry wastewater with 18.6±4.1 to 27.1±5.6mg/L of LAS in the following conditions: ethanol and nitrate addition (Phases I, II and III), nitrate (Phase IV), ethanol (Phase V) and laundry wastewater (Phase VI). LAS removal was 93±12% (FBR1) and 99±2% (FBR2). In FBR1, nitrate influenced significantly on LAS removal (99±3% - Phase IV) compared to the phase without nitrate (90±15% - Phase V). In FBR1 the absence of ethanol was more favourable for LAS removal (99±3% - Phase IV) compared to ethanol addition (87±16% - Phase II). In FBR2, 99±2% LAS removal was found up to 436days. By microbial characterization were identified bacteria as Acinetobacter, Dechloromonas, Pseudomonas and Zoogloea.
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Affiliation(s)
- Marcus Vinicius Freire Andrade
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense Avenue 400, 13566-590 São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense Avenue 400, 13566-590 São Carlos, SP, Brazil
| | - Juliano José Corbi
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense Avenue 400, 13566-590 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905 São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Trabalhador São-carlense Avenue 400, 13566-590 São Carlos, SP, Brazil.
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Delforno TP, Okada DY, Faria CV, Varesche MBA. Evaluation of anionic surfactant removal in anaerobic reactor with Fe(III) supplementation. J Environ Manage 2016; 183:687-693. [PMID: 27639303 DOI: 10.1016/j.jenvman.2016.09.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
The objective of this study was to evaluate the removal of linear alkylbenzene sulfonate (LAS) associated with Fe(III) supplementation using an expanded granular sludge bed (EGSB) reactor. The reactor was inoculated with a granular sludge and fed with synthetic wastewater containing a specific LAS load rate (SLLR) of 1.5 mg gVS-1 d-1 (∼16.4 mgLAS L-1 influent) and supplied with 7276 μMol L-1 of Fe(III). The biomasses from the inoculum and at the end of the EGSB-Fe operation (127 days) were characterized using 16S rRNA Ion Tag sequencing. An increase of 20% in the removal efficiency was observed compared to reactors without Fe(III) supplementation that was reported in the literature, and the LAS removal was approximately 84%. The Fe(III) reduction was dissimilatory (the total iron concentration in the influent and effluent were similar) and reached approximately 64%. The higher Fe(III) reduction and LAS removal were corroborated by the enrichment of genera, such as Shewanella (only EGSB-Fe - 0.5%) and Geobacter (1% - inoculum; 18% - EGSB-Fe). Furthermore, the enrichment of genera that degrade LAS and/or aromatic compounds (3.8% - inoculum; 29.6% - EGSB-Fe of relative abundance) was observed for a total of 20 different genera.
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Affiliation(s)
- T P Delforno
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, CP 6171, Campinas, SP, CEP 13081-970, Brazil.
| | - D Y Okada
- University of Campinas (UNICAMP), School of Technology, Division of Technology in Environment Sanitation, Limeira, SP, CEP 13484-332, Brazil.
| | - C V Faria
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP, CEP 13563-120, Brazil.
| | - M B A Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP, CEP 13563-120, Brazil.
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Botta LS, Ratti RP, Sakamoto IK, Ramos LR, Silva EL, Varesche MBA. Bioconversion of waste office paper to hydrogen using pretreated rumen fluid inoculum. Bioprocess Biosyst Eng 2016; 39:1887-1897. [DOI: 10.1007/s00449-016-1663-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/02/2016] [Indexed: 10/21/2022]
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Rodriguez RP, Vich DV, Garcia ML, Varesche MBA, Zaiat M. Application of horizontal-flow anaerobic immobilized biomass reactor for bioremediation of acid mine drainage. J Water Health 2016; 14:399-410. [PMID: 27280606 DOI: 10.2166/wh.2015.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The production of low-pH effluent with sulfate and metals is one of the biggest environmental concerns in the mining industry. The biological process for sulfate reduction has the potential to become a low-cost solution that enables the recovery of interesting compounds. The present study analyzed such a process in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor, employing ethanol as the carbon and energy source. Results showed that a maximal efficiency in the removal of sulfate and ethanol could only be obtained by reducing the applied sulfate load (225.1 ± 38 g m(-3) d(-1)). This strategy led to over 75% of chemical oxygen demand (COD) and sulfate removal. Among the COD/SO4(2-) studied ratios, 0.67 showed the most promising performance. The effluent's pH has naturally remained between 6.8 and 7.0 and the complete oxidation of the organic matter has been observed. Corrections of the influent pH or effluent recirculation did not show any significant effect on the COD and sulfate removal efficiency. Species closely related to strains of Clostridium sp. and species of Acidaminobacter hydrogenomorfans and Fusibacter paucivorans that can be related to the process of sulfate reduction were found in the HAIB reactors when the initial pH was 5 and the COD/SO4(2-) ratio increased to 1.0.
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Affiliation(s)
- R P Rodriguez
- Universidade Federal de Alfenas (UNIFAL), Instituto de Ciência e Tecnologia (ICT), Campus Poços de Caldas, Rodovia José Aurélio Vilela, 11.999, CEP: 37715-400, Poços de Caldas, MG, Brazil E-mail:
| | - D V Vich
- Universidade de São Paulo (USP), Escola de Engenharia de São Carlos (EESC), Centro de Pesquisa, Desenvolvimento e Inovação em Engenharia Ambiental, Laboratório de Processos Biológicos, Av. João Dagnone, 1100, CEP: 13563-120, São Carlos, SP, Brazil
| | - M L Garcia
- Universidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Departamento de Petrologia e Metalogenia, Av. 24A 1515, CEP: 13506-900, Rio Claro, SP, Brazil
| | - M B A Varesche
- Universidade de São Paulo (USP), Escola de Engenharia de São Carlos (EESC), Centro de Pesquisa, Desenvolvimento e Inovação em Engenharia Ambiental, Laboratório de Processos Biológicos, Av. João Dagnone, 1100, CEP: 13563-120, São Carlos, SP, Brazil
| | - M Zaiat
- Universidade de São Paulo (USP), Escola de Engenharia de São Carlos (EESC), Centro de Pesquisa, Desenvolvimento e Inovação em Engenharia Ambiental, Laboratório de Processos Biológicos, Av. João Dagnone, 1100, CEP: 13563-120, São Carlos, SP, Brazil
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Delforno TP, Moura AGL, Okada DY, Sakamoto IK, Varesche MBA. Microbial diversity and the implications of sulfide levels in an anaerobic reactor used to remove an anionic surfactant from laundry wastewater. Bioresour Technol 2015; 192:37-45. [PMID: 26005927 DOI: 10.1016/j.biortech.2015.05.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/11/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
The objective of this study was to evaluate the removal of linear alkylbenzene sulfonate (LAS) from commercial laundry wastewater using an expanded granular sludge bed (EGSB) reactor with two specific LAS loading rates (SLLRs), 1.0 and 2.7 mg LAS gVS(-1)d (-1). The biomass was characterized using denaturing gradient gel electrophoresis (DGGE) and 16S Ion Tag sequencing. Higher LAS removal (92.9%) was observed in association with an SLLR of 1.0 mg LAS gVS(-1) d(-1) than with an SLLR of 2.7 mg LAS gVS(-1) d(-1) (58.6%). A relationship between the S(-2) concentration in the effluent and the surfactant removal efficiency was observed. This result is indicative of the inhibition of LAS-removing microbiota at S(-2) concentrations greater than 20 mg SL(-1). By using DGGE, microbial stratification was observed in the reactor in association with granule size, even though the reactor is considered to be a completely mixed regime. The RDP-classifier identified 175 genera, 33 of which were related to LAS degradation.
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Affiliation(s)
- T P Delforno
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, CP 6171, Campinas, SP CEP 13081-970, Brazil.
| | - A G L Moura
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - D Y Okada
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - I K Sakamoto
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil.
| | - M B A Varesche
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, Engineering School of São Carlos - University of São Paulo (EESC - USP) Campus II, São Carlos, SP CEP 13563-120, Brazil.
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Macedo TZ, Okada DY, Delforno TP, Braga JK, Silva EL, Varesche MBA. The comparative advantages of ethanol and sucrose as co-substrates in the degradation of an anionic surfactant: microbial community selection. Bioprocess Biosyst Eng 2015; 38:1835-44. [PMID: 26084256 DOI: 10.1007/s00449-015-1424-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 06/02/2015] [Indexed: 10/23/2022]
Abstract
The efficiency of linear alkylbenzene sulfonate (LAS) removal from laundry wastewater and the related microbial community was investigated in an anaerobic fluidized bed reactor (AFBR). The AFBR was operated in three stages, in addition to the biomass adaptation stage without LAS (stage I). The stages were differentiated by their supplementary co-substrates: stage II had sucrose plus ethanol, stage III had only ethanol, and stage IV had no co-substrate. The replacement of sucrose plus ethanol with ethanol only for the substrate composition favored the efficiency of LAS removal, which remained high after the co-substrate was removed (stage II: 52 %; stage III: 73 %; stage IV: 77 %). A transition in the microbial community from Comamonadaceae to Rhodocyclaceae in conjunction with the co-substrate variation was observed using ion sequencing analysis. The microbial community that developed in response to an ethanol-only co-substrate improved LAS degradation more than the community that developed in response to a mixture of sucrose and ethanol, suggesting that ethanol is a better option for enriching an LAS-degrading microbial community.
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Affiliation(s)
- T Z Macedo
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sancarlense, 400, 13566-590, São Carlos, SP, Brazil.
| | - D Y Okada
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sancarlense, 400, 13566-590, São Carlos, SP, Brazil
| | - T P Delforno
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sancarlense, 400, 13566-590, São Carlos, SP, Brazil
| | - J K Braga
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sancarlense, 400, 13566-590, São Carlos, SP, Brazil
| | - E L Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, Km 235, SP 310, 13565-905, São Carlos, SP, Brazil
| | - M B A Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador Sancarlense, 400, 13566-590, São Carlos, SP, Brazil.
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Ratti RP, Delforno TP, Okada DY, Varesche MBA. Bacterial communities in thermophilic H2-producing reactors investigated using 16S rRNA 454 pyrosequencing. Microbiol Res 2015; 173:10-7. [DOI: 10.1016/j.micres.2015.01.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 01/05/2015] [Accepted: 01/26/2015] [Indexed: 10/24/2022]
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36
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Carosia MF, Okada DY, Sakamoto IK, Silva EL, Varesche MBA. Microbial characterization and degradation of linear alkylbenzene sulfonate in an anaerobic reactor treating wastewater containing soap powder. Bioresour Technol 2014; 167:316-323. [PMID: 24997374 DOI: 10.1016/j.biortech.2014.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 06/01/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
The aim of this study was to evaluate the removal of linear alkylbenzene sulfonate (LAS) in an anaerobic fluidized bed reactor (AFBR) treating wastewater containing soap powder as LAS source. At Stage I, the AFBR was fed with a synthetic substrate containing yeast extract and ethanol as carbon sources, and without LAS; at Stage II, soap powder was added to this synthetic substrate obtaining an LAS concentration of 14 ± 3 mg L(-1). The compounds of soap powder probably inhibited some groups of microorganisms, increasing the concentration of volatile fatty acids (VFA) from 91 to 143 mg HAc L(-1). Consequently, the LAS removal rate was 48 ± 10% after the 156 days of operation. By sequencing, 16S rRNA clones belonging to the phyla Proteobacteria and Synergistetes were identified in the samples taken at the end of the experiment, with a remarkable presence of Dechloromonas sp. and Geobacter sp.
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Affiliation(s)
- Mariana Fronja Carosia
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil.
| | - Dagoberto Yukio Okada
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil.
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235 CEP 13565-905 São Carlos, SP, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, CEP 13563-120 São Carlos, SP, Brazil.
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Rosa PRF, Santos SC, Sakamoto IK, Varesche MBA, Silva EL. Hydrogen production from cheese whey with ethanol-type fermentation: effect of hydraulic retention time on the microbial community composition. Bioresour Technol 2014; 161:10-19. [PMID: 24681681 DOI: 10.1016/j.biortech.2014.03.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/03/2014] [Accepted: 03/05/2014] [Indexed: 06/03/2023]
Abstract
The effects of different hydraulic retention times (HRTs) of 4, 2, and 1h and varying sources of inoculum (sludge from swine and sludge from poultry) on the hydrogen production in two anaerobic fluidized bed reactors (AFBRs) were evaluated. Cheese whey was used as a substrate, and 5000mgCODL(-1) was applied. The highest hydrogen yield (HY) of 1.33molmol(-1) lactose and highest ethanol yield (EtOHY) of 1.22molEtOHmol(-1) lactose were obtained at the highest HRT (4h). When the reactors were operated at an HRT of 1h, methane (0.68LCH4h(-1)L(-1)) was produced concurrently with hydrogen (0.51LH2h(-1)L(-1)). The major metabolites observed were soluble ethanol, methanol, acetic acid, and butyric acid. Cloning of the 16S rRNA gene sequences indicated that the microbial community were affiliated with the genera Selenomonas sp. (69% of the sequences), and Methanobacterium sp. (98% of the sequences).
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Affiliation(s)
- Paula Rúbia Ferreira Rosa
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905 São Carlos, SP, Brazil
| | - Samantha Christine Santos
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590 São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590 São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905 São Carlos, SP, Brazil.
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Motteran F, Braga JK, Sakamoto IK, Silva EL, Varesche MBA. Degradation of high concentrations of nonionic surfactant (linear alcohol ethoxylate) in an anaerobic fluidized bed reactor. Sci Total Environ 2014; 481:121-128. [PMID: 24594741 DOI: 10.1016/j.scitotenv.2014.02.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 02/06/2014] [Accepted: 02/06/2014] [Indexed: 06/03/2023]
Abstract
The removal and degradation of the nonionic surfactant linear alcohol ethoxylate (LAE)Genapol® C-100 in an anaerobic fluidized bed reactor were evaluated with 4.7 mg LAE/L to 107.4 mg LAE/L added to the synthetic substrate (535 ± 121 mg/L to 882 ± 126 mg/L of organic matter). High removal efficiencies of the COD (chemical oxygen demand) (88%) and LAE (98%) were observed even at high surfactant concentrations during the 492 days of operation. The absence of sucrose in the synthetic substrate modified the microbial community. Similarity coefficients between the phases with sucrose and without sucrose were 74% and 59% for the Archaea and Bacteria domains, respectively. The higher LAE removal (98%) was obtained for the 97.9 mg LAE/L influent in the absence of the co-substrate, as well as the greater diversity of volatile fatty acid. At the end of the reactor operation 2.05 mg of LAE was adsorbed in the biomass and 98.5% was biodegraded.
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Affiliation(s)
- Fabrício Motteran
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 São Carlos, SP, Brazil.
| | - Juliana Kawanishi Braga
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod Washington Luiz, Km 235, SP 310, 13565-905 São Carlos, SP, Brazil..
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 São Carlos, SP, Brazil.
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Santos SC, Rosa PRF, Sakamoto IK, Varesche MBA, Silva EL. Organic loading rate impact on biohydrogen production and microbial communities at anaerobic fluidized thermophilic bed reactors treating sugarcane stillage. Bioresour Technol 2014; 159:55-63. [PMID: 24632626 DOI: 10.1016/j.biortech.2014.02.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/10/2014] [Accepted: 02/14/2014] [Indexed: 06/03/2023]
Abstract
This study aimed to evaluate the effect of high organic loading rates (OLR) (60.0-480.00 kg COD m(-3)d(-1)) on biohydrogen production at 55°C, from sugarcane stillage for 15,000 and 20,000 mg CODL(-1), in two anaerobic fluidized bed reactors (AFBR1 and AFBR2). It was obtained, for H2 yield and content, a decreasing trend by increasing the OLR. The maximum H2 yield was observed in AFBR1 (2.23 mmol g COD added(-1)). The volumetric H2 production was proportionally related to the applied hydraulic retention time (HRT) of 6, 4, 2 and 1h and verified in AFBR1 the highest value (1.49 L H2 h(-1)L(-1)). Among the organic acids obtained, there was a predominance of lactic acid (7.5-22.5%) and butyric acid (9.4-23.8%). The microbial population was set with hydrogen-producing fermenters (Megasphaera sp.) and other organisms (Lactobacillus sp.).
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Affiliation(s)
- Samantha Christine Santos
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590, São Carlos, SP, Brazil
| | - Paula Rúbia Ferreira Rosa
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905, São Carlos, SP, Brazil
| | - Isabel Kimiko Sakamoto
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590, São Carlos, SP, Brazil
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulic and Sanitation, University of São Paulo, Av. Trabalhador Sãocarlense, 400, Centro, CEP 13566-590, São Carlos, SP, Brazil
| | - Edson Luiz Silva
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP 13565-905, São Carlos, SP, Brazil.
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Delforno TP, Moura AGL, Okada DY, Varesche MBA. Effect of biomass adaptation to the degradation of anionic surfactants in laundry wastewater using EGSB reactors. Bioresour Technol 2014; 154:114-121. [PMID: 24384318 DOI: 10.1016/j.biortech.2013.11.102] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 11/25/2013] [Accepted: 11/30/2013] [Indexed: 06/03/2023]
Abstract
Two expanded granular sludge bed reactors were operated. RAB (adapted biomass) was operated in two stages: Stage I, with standard LAS (13.2 mg L(-1)); and Stage II, in which the standard LAS was replaced by diluted laundry wastewater according to the LAS concentration (11.2 mg L(-1)). RNAB (not adapted biomass) had a single stage, using direct wastewater (11.5 mg L(-1)). Thus, the strategy of biomass adaptation did not lead to an increase of surfactant removal in wastewater (RAB-Stage II: 77%; RNAB-Stage I: 78%). By means of denaturing gradient gel electrophoresis, an 80% similarity was verified in the phases with laundry wastewater (sludge bed) despite the different reactor starting strategies. By pyrosequencing, many reads were related to genera of degraders of aromatic compounds and sulfate reducers (Syntrophorhabdus and Desulfobulbus). The insignificant difference in LAS removal between the two strategies was most likely due to the great microbial richness of the inoculum.
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Affiliation(s)
- T P Delforno
- Laboratório de Processos Biológicos (LPB), Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Engenharia Ambiental - Bloco 4-F, Av. João Dagnone, 1100 - Santa Angelina, 13563-120 São Carlos, SP, Brazil.
| | - A G L Moura
- Laboratório de Processos Biológicos (LPB), Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Engenharia Ambiental - Bloco 4-F, Av. João Dagnone, 1100 - Santa Angelina, 13563-120 São Carlos, SP, Brazil.
| | - D Y Okada
- Laboratório de Processos Biológicos (LPB), Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Engenharia Ambiental - Bloco 4-F, Av. João Dagnone, 1100 - Santa Angelina, 13563-120 São Carlos, SP, Brazil.
| | - M B A Varesche
- Laboratório de Processos Biológicos (LPB), Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Engenharia Ambiental - Bloco 4-F, Av. João Dagnone, 1100 - Santa Angelina, 13563-120 São Carlos, SP, Brazil.
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Adorno MAT, Hirasawa JS, Varesche MBA. Development and Validation of Two Methods to Quantify Volatile Acids (C2-C6) by GC/FID: Headspace (Automatic and Manual) and Liquid-Liquid Extraction (LLE). ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajac.2014.57049] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Delforno TP, Okada DY, Polizel J, Sakamoto IK, Varesche MBA. Microbial characterization and removal of anionic surfactant in an expanded granular sludge bed reactor. Bioresour Technol 2012; 107:103-109. [PMID: 22212695 DOI: 10.1016/j.biortech.2011.12.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 12/07/2011] [Accepted: 12/08/2011] [Indexed: 05/31/2023]
Abstract
This study evaluated linear alkylbenzene sulfonate removal in an expanded granular sludge bed reactor with hydraulic retention times of 26 h and 32 h. Sludge bed and separator phase biomass were phylogenetically characterized (sequencing 16S rRNA) and quantified (most probable number) to determine the total anaerobic bacteria and methanogenic Archaea. The reactor was fed with a mineral medium supplemented with 14 mg l(-1)LAS, ethanol and methanol. The stage I-32 h consisted of biomass adaptation (without LAS influent) until reactor stability was achieved (COD removal >97%). In stage II-32 h, LAS removal was 74% due to factors such as dilution, degradation and adsorption. Higher HRT values increased the LAS removal (stage III: 26 h - 48% and stage IV: 32 h - 64%), probably due to increased contact time between the biomass and LAS. The clone libraries were different between samples from the sludge bed (Synergitetes and Proteobacteria) and the separator phase (Firmicutes and Proteobacteria) biomass.
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Affiliation(s)
- T P Delforno
- Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Av. João Dagnone, 1100 - Santa Angelina, 13563-120 São Carlos, SP, Brazil.
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Barros AR, Adorno MAT, Sakamoto IK, Maintinguer SI, Varesche MBA, Silva EL. Performance evaluation and phylogenetic characterization of anaerobic fluidized bed reactors using ground tire and pet as support materials for biohydrogen production. Bioresour Technol 2011; 102:3840-3847. [PMID: 21185176 DOI: 10.1016/j.biortech.2010.12.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 11/29/2010] [Accepted: 12/01/2010] [Indexed: 05/30/2023]
Abstract
This study evaluated two different support materials (ground tire and polyethylene terephthalate [PET]) for biohydrogen production in an anaerobic fluidized bed reactor (AFBR) treating synthetic wastewater containing glucose (4000 mg L(-1)). The AFBR, which contained either ground tire (R1) or PET (R2) as support materials, were inoculated with thermally pretreated anaerobic sludge and operated at a temperature of 30°C. The AFBR were operated with a range of hydraulic retention times (HRT) between 1 and 8h. The reactor R1 operating with a HRT of 2h showed better performance than reactor R2, reaching a maximum hydrogen yield of 2.25 mol H(2)mol(-1) glucose with 1.3mg of biomass (as the total volatile solids) attached to each gram of ground tire. Subsequent 16S rRNA gene sequencing and phylogenetic analysis of particle samples revealed that reactor R1 favored the presence of hydrogen-producing bacteria such as Clostridium, Bacillus, and Enterobacter.
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Affiliation(s)
- Aruana Rocha Barros
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luis km 235, CEP 13565-905 São Carlos, SP, Brazil
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de Oliveira LL, Costa RB, Okada DY, Vich DV, Duarte ICS, Silva EL, Varesche MBA. Anaerobic degradation of linear alkylbenzene sulfonate (LAS) in fluidized bed reactor by microbial consortia in different support materials. Bioresour Technol 2010; 101:5112-5122. [PMID: 20189800 DOI: 10.1016/j.biortech.2010.01.141] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 01/15/2010] [Accepted: 01/19/2010] [Indexed: 05/28/2023]
Abstract
Four anaerobic fluidized bed reactors filled with activated carbon (R1), expanded clay (R2), glass beads (R3) and sand (R4) were tested for anaerobic degradation of LAS. All reactors were inoculated with sludge from a UASB reactor treating swine wastewater and were fed with a synthetic substrate supplemented with approximately 20 mg l(-1) of LAS, on average. To 560 mg l(-1) COD influent, the maximum COD and LAS removal efficiencies were mean values of 97+/-2% and 99+/-2%, respectively, to all reactors demonstrating the potential applicability of this reactor configuration for treating LAS. The reactors were kept at 30 degrees C and operated with a hydraulic retention time (HRT) of 18h. The use of glass beads and sand appear attractive because they favor the development of biofilms capable of supporting LAS degradation. Subsequent 16S rRNA gene sequencing and phylogenetic analysis of samples from reactors R3 and R4 revealed that these reactors gave rise to broad microbial diversity, with microorganisms belonging to the phyla Bacteroidetes, Firmicutes, Actinobacteria and Proteobacteria, indicating the role of microbial consortia in degrading the surfactant LAS.
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Affiliation(s)
- Lorena Lima de Oliveira
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Av Trabalhador Sãocarlense 400, 13566-590 São Carlos, SP, Brazil.
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Duarte ICS, Oliveira LL, Saavedra NK, Fantinatti-Garboggini F, Menezes CBA, Oliveira VM, Varesche MBA. Treatment of linear alkylbenzene sulfonate in a horizontal anaerobic immobilized biomass reactor. Bioresour Technol 2010; 101:606-612. [PMID: 19751971 DOI: 10.1016/j.biortech.2008.10.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2007] [Revised: 10/14/2008] [Accepted: 10/15/2008] [Indexed: 05/28/2023]
Abstract
Linear alkylbenzene sulfonate (LAS) is an anionic surfactant widely used to manufacture detergents and found in domestic and industrial wastewater. LAS removal was evaluated in a horizontal anaerobic immobilized biomass reactor. The system was filled with polyurethane foam and inoculated with sludge that was withdrawn from an up flow anaerobic sludge blanket reactor that is used to treat swine wastewater. The reactor was fed with easily degradable substrates and a solution of commercial LAS for 313 days. The hydraulic retention time applied was 12h. The system was initially operated without detergent and resulted to 94% reduction of demand. The mass balance in the system indicated that the LAS removal efficiency was 45% after 18 0days. From the 109 th day to the 254 th day, a removal efficiency of 32% was observed. The removal of LAS was approximately 40% when 1500 mg of LAS were applied in the absence of co-substrates suggesting that the LAS molecules were used selectively. Microscopic analyses of the biofilm revealed diverse microbial morphologies and denaturing gradient gel electrophoresis profiling showed variations in the total bacteria and sulfate-reducing bacteria populations. 16S rRNA sequencing and phylogenetic analyses demonstrated that members of the order Clostridiales were the major components of the bacterial community in the last step of the reactor operation.
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Affiliation(s)
- I C S Duarte
- Federal University of São Carlos, Rodovia João Leme dos Santos, Km 110, 18052-780 Sorocaba, SP, Brazil.
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Lima de Oliveira L, Silveira Duarte IC, Sakamoto IK, Amâncio Varesche MB. Influence of support material on the immobilization of biomass for the degradation of linear alkylbenzene sulfonate in anaerobic reactors. J Environ Manage 2009; 90:1261-1268. [PMID: 18814953 DOI: 10.1016/j.jenvman.2008.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2007] [Revised: 06/06/2008] [Accepted: 07/16/2008] [Indexed: 05/26/2023]
Abstract
Two horizontal-flow anaerobic immobilized biomass reactors (HAIB) were used to study the degradation of the LAS surfactant: one filled with charcoal (HAIB1) and the other with a mixed bed of expanded clay and polyurethane foam (HAIB2). The reactors were fed with synthetic substrate supplemented with 14 mg l(-1)of LAS, kept at 30+/-2 degrees C and operated with a hydraulic retention time (HRT) of 12h. The surfactant was quantified by HPLC. Spatial variation analyses were done to quantify organic matter and LAS consumption along the reactor length. The presence of the surfactant in the load did not affect the removal of organic matter (COD), which was close to 90% in both reactors for an influent COD of 550 mg l(-1). The results of a mass balance indicated that 28% of all LAS added to HAIB1 was removed by degradation. HAIB2 presented 27% degradation. Molecular biology techniques revealed microorganisms belonging the uncultured Holophaga sp., uncultured delta Proteobacterium, uncultured Verrucomicrobium sp., Bacteroides sp. and uncultured gamma Proteobacterium sp. The reactor with biomass immobilized on charcoal presented lower adsorption and a higher kinetic degradation coefficient. So, it was the most suitable support for LAS anaerobic treatment.
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Affiliation(s)
- Lorena Lima de Oliveira
- Department of Hydraulics & Sanitation, School of Engineering of São Carlos, University of São Paulo, São Carlos, SP, Brazil.
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Duarte ICS, Oliveira LL, Saavedra NKD, Fantinatti-Garboggini F, Oliveira VM, Varesche MBA. Evaluation of the microbial diversity in a horizontal-flow anaerobic immobilized biomass reactor treating linear alkylbenzene sulfonate. Biodegradation 2007; 19:375-85. [PMID: 17647084 DOI: 10.1007/s10532-007-9143-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2006] [Accepted: 07/02/2007] [Indexed: 10/23/2022]
Abstract
The purpose of this work was to assess the degradation of linear alkylbenzene sulfonate (LAS) in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor. The reactor was filled with polyurethane foam where the sludge from a sanitary sewage treatment was immobilized. The hydraulic detention time (HDT) used in the experiments was of 12 h. The reactor was fed with synthetic substrate (410 mg l(-1) of meat extract, 115 mg l(-1) of starch, 80 mg l(-1) of saccharose, 320 mg l(-1) of sodium bicarbonate and 5 ml l(-1) of salt solution) in the following stages of operation: SI-synthetic substrate, SII-synthetic substrate with 7 mg l(-1) of LAS, SIII-synthetic substrate with 14 mg l(-1) of LAS and SIV-synthetic substrate containing yeast extract (substituting meat extract) and 14 mg l(-1) of LAS, without starch. At the end of the experiment (313 days) a degradation of approximately 35% of LAS was achieved. The higher the concentration of LAS, the greater the amount of foam for its adsorption. This is necessary because the isotherm of LAS adsorption in the foam is linear for the studied concentrations (2 to 50 mg l(-1)). Microscopic analyses of the biofilm revealed diverse microbial morphologies, while Denaturing Gradient Gel Eletrophoresis (DGGE) profiling showed variations in the population of total bacteria and sulphate-reducing bacteria (SRB). The 16S rRNA gene sequencing and phylogenetic analyses revealed that the members of the order Clostridiales were the major components of the bacterial community in the last reactor operation step.
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Affiliation(s)
- I C S Duarte
- Department of Hydraulics and Sanitation, School of Engineering of São Carlos, University of São Paulo, Brazil. Av. Trabalhador São-Carlense, no. 400, São Carlos, SP 13566-590, Brazil.
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Gusmão VR, Chinalia FA, Sakamoto IK, Varesche MBA. Performance of a reactor containing denitrifying immobilized biomass in removing ethanol and aromatic hydrocarbons (BTEX) in a short operating period. J Hazard Mater 2007; 139:301-9. [PMID: 16872740 DOI: 10.1016/j.jhazmat.2006.06.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Revised: 06/11/2006] [Accepted: 06/12/2006] [Indexed: 05/11/2023]
Abstract
A horizontal-flow anaerobic immobilized biomass reactor (HAIB) containing denitrifying biomass was evaluated with respect to its ability to remove, separately and in a short operating period (30 days), organic matter, nitrate, and the hydrocarbons benzene (41.4 mg L-1), toluene (27.8 mg L-1), ethylbenzene (31.1 mg L-1), o-xylene (28.5 mg L-1), m-xylene (28.4 mg L-1) and p-xylene (32.1 mg L-1). The purified culture, which was grown in the presence of the specific hydrocarbon, was used as the source of cells to be immobilized in the polyurethane foam. After 30 days of operation, the foam was removed and a new immobilized biomass was grown in the presence of another hydrocarbon. The average hydrocarbon removal efficiency attained was 97%. The organic matter, especially ethanol, was removed with an average efficiency of 83% at a mean influent concentration of 1185.0 mg L-1. A concomitant removal of 97% of nitrate was observed for a mean influent concentration of 423.4 mg L-1. The independent removal of each hydrocarbon demonstrated that these contaminants can be biodegraded separately, without the need for a compound to be the primary substrate for the degradation of another. This study proposes the application of the system for treatment of areas contaminated with these compounds, with substitution and formation of a biofilm in a 30-day period.
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Affiliation(s)
- Valquiria Ribeiro Gusmão
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo (USP), Av. Trabalhador São-carlense 400, São Carlos 13566-590, SP, Brazil.
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Gusmão VR, Martins TH, Chinalia FA, Sakamoto IK, HenriqueThiemann O, Varesche MBA. BTEX and ethanol removal in horizontal-flow anaerobic immobilized biomass reactor, under denitrifying condition. Process Biochem 2006. [DOI: 10.1016/j.procbio.2006.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ribeiro R, Varesche MBA, Foresti E, Zaiat M. Influence of the carbon source on the anaerobic biomass adhesion on polyurethane foam matrices. J Environ Manage 2005; 74:187-194. [PMID: 15627471 DOI: 10.1016/j.jenvman.2004.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This work focuses on the influence of the source of organic matter on the process of biomass adhesion on polyurethane foam matrices in fixed-bed anaerobic immobilized-sludge reactors. Five experiments were performed in differential 'gradientless' reactors fed with meat extract (protein), glucose, starch, lipids and complex substrate. The polyurethane foam colonization process was monitored temporally in each experiment to identify the amount of biomass buildup, extracellular polymer production and the morphological characteristics of the cells adhering to the support. Different immobilization patterns were observed for the different substrates used. The morphological variety was found to be dependent on the substrate constituents. Polymer excretion was apparently crucial in the colonization process of the polyurethane matrices and was likely related to cell fixation on the support. The production of extracellular polymeric substances speeded up the initial fixation of microorganisms on the polyurethane surface.
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Affiliation(s)
- R Ribeiro
- Laboratório de Processos Biológicos, Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos, Universidade de São Paulo, Av., Trabalhador São-Carlense, 400, 13566-590 São Carlos, SP, Brazil
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