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Fiore S, Demichelis F, Chiappero M, Onofrio M. Investigation of the anaerobic digestion of cosmetic industrial wastes: Feasibility and perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 299:113678. [PMID: 34523543 DOI: 10.1016/j.jenvman.2021.113678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 08/21/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
This study assessed the anaerobic digestion (AD) of wastes deriving from cosmetics production: sludge from onsite wastewater treatment plant (sWWTP), residues of shampoo/conditioner (RSC) and sludge from mascara production (MS), considered as single substrates and as mixture according to the produced amounts (54 %-wt sWWTP, 31 %-wt RSC, 13 %-wt MS, plus 2 %-wt food waste from the canteen, FW). Total COD (CODT) was 624-1436 g O2/kg VS, while soluble COD was 5-23 %-wt of CODT. AD tests at 35 °C achieved the following biogas yields: 0.10 Nm3/kgvs (70 %-v/v methane) for sWWTP; 0.07 Nm3/kgvs (62 %-v/v methane) for RSC; 0.04 Nm3/kgvs (67 %-v/v methane) for MS. The mixed substrates underwent physico-chemical pre-treatments (thermo-alkaline, TA: 120 min at 50 °C; thermo-alkaline-sonication, TAS: 15 min at 40 kHz and 80 °C, both based on the addition of 0.08 g NaOH per each g of total solid in the substrate), reaching 64-66% disintegration rate, and AD tests (5 %-wt dry substance) at 35 and 52 °C. Biogas yields were (for TA and TAS respectively): 0.22 and 0.20 Nm3/kgVS (62-70% methane); 0.21 and 0.19 Nm3/kgVS (66-66% methane) at 52 °C. At both temperatures, methane yields considerably improved (+71-100%), compared to mixed untreated substrates, and 5-8 %-wt total solids reductions were observed. A technical-economic scale-up assessment completed the research. The energy analysis highlighted the crucial role of TA pre-treatment in achieving the process energetic sustainability. The economic analysis showed that the AD of the considered cosmetic waste could be sustainable anyway, thanks to the savings related to the disposal of the digestate compared to current waste management costs.
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Affiliation(s)
- Silvia Fiore
- DIATI (Department of Engineering for Environment, Land, and Infrastructures), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy.
| | - Francesca Demichelis
- DISAT (Department of Applied Science and Technology), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
| | - Marco Chiappero
- DIATI (Department of Engineering for Environment, Land, and Infrastructures), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
| | - Maurizio Onofrio
- DIATI (Department of Engineering for Environment, Land, and Infrastructures), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
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Argenta TS, Barros ARM, de Carvalho CDA, Dos Santos AB, Firmino PIM. Parabens in aerobic granular sludge systems: Impacts on granulation and insights into removal mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:142105. [PMID: 33207471 DOI: 10.1016/j.scitotenv.2020.142105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/07/2020] [Accepted: 08/29/2020] [Indexed: 05/06/2023]
Abstract
This work assessed the impact of methylparaben, ethylparaben, propylparaben, and butylparaben (200 μg L-1 each) on the granulation process as well as on the organic matter and nutrient removal of an aerobic granular sludge (AGS) system (6-h cycle). Additionally, some insights into the main paraben removal mechanisms were provided. In the presence of parabens, aerobic granules with good settleability, but with fragile and irregular structure, were grown. No significant effect of parabens on organic matter (>90%) and nitrogen (~70%) removal was evidenced. On the other hand, phosphorus removal was slightly impaired, although high removal efficiencies (~70%) were reached. High paraben removal efficiencies were achieved (>85%) in the AGS system, with methylparaben being the most recalcitrant compound. Concerning the removal mechanisms, biotransformation was the main mechanism in the removal of all parabens (85.5% for methylparaben and 100% for the others), whereas, apparently, adsorption played a role only in the removal of methylparaben. In addition, this compound was also suggested as a probable intermediate of the degradation of the larger alkyl-chain parabens. Lastly, regarding the microbial community, with the exception of Mycobacterium, the reactors shared the same genera, which may explain their comparable operational performances. Additionally, some genera that developed more in the presence of parabens may be related to their degradation. Therefore, although antimicrobial agents such as parabens compromised the granule structure, AGS system maintained a good operational performance and showed to be very efficient in paraben removal.
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Affiliation(s)
- Thaís Salvador Argenta
- Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Clara de Amorim de Carvalho
- Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - André Bezerra Dos Santos
- Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Paulo Igor Milen Firmino
- Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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Zheng X, Xie X, Yu C, Zhang Q, Wang Y, Cong J, Liu N, He Z, Yang B, Liu J. Unveiling the activating mechanism of tea residue for boosting the biological decolorization performance of refractory dye. CHEMOSPHERE 2019; 233:110-119. [PMID: 31173951 DOI: 10.1016/j.chemosphere.2019.05.205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 04/06/2019] [Accepted: 05/22/2019] [Indexed: 06/09/2023]
Abstract
Conventional microbial treatments are challenged by new synthetic refractory dyes. In this work, tea residue was found serving as an effective activator to boost the decolorization performance of anthraquinone dye (reactive blue 19, RB19) by a new bacterial flora DDMY2. The unfermented West Lake Longjing tea residue showed the best enhancement performance. Seventeen main kinds of components in tea residue had been selected to take separate and orthogonal experiments on decolorization of RB19 by DDMY2. Results suggested epigallocatechin gallate (EGCG) in tea residue played important roles in boosting the treatment performance. Illumina MiSeq sequencing results confirmed that EGCG and tea residue pose similar impact on the change of DDMY2 community structure. Some functional bacterial genera unclassified_o_Pseudomonadales, Stenotrophomonas and Bordetella were enriched during the treatment of RB19 by EGCG and tea residue. These evidences suggested EGCG might be the key active component in tea residue that responsible for the enhancement effect on decolorization performance. These results revealed the activating mechanism of tea residue from the perspective of composition.
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Affiliation(s)
- Xiulin Zheng
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Xuehui Xie
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
| | - Chengzhi Yu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Qingyun Zhang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Yiqin Wang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Junhao Cong
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Na Liu
- School of Environment and Surveying Engineering, Suzhou University, Suzhou, Anhui, 234000, China.
| | - Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
| | - Bo Yang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
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Juárez-Jiménez B, Pesciaroli C, Maza-Márquez P, López-Martínez S, Vílchez-Quero JL, Zafra-Gómez A. Biodegradation of methyl and butylparaben by bacterial strains isolated from amended and non-amended agricultural soil. Identification, behavior and enzyme activities of microorganisms. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 245:245-254. [PMID: 31154171 DOI: 10.1016/j.jenvman.2019.05.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/17/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
The aim of the present study was to investigate the kinetics of methylparaben (MPB) and butylparaben (BPB) removal, two emerging pollutants with possible endocrine disrupting effects, from agricultural soil with and without amendment with compost from sewage sludge used as biostimulant. Compound removal is explained by a first-order kinetic model with half-life times of 6.5/6.7 days and 11.4/8.2 days, in presence/absence of compost, for MPB and BPB respectively. % R2 for the fitted model were higher than 96% in all cases. Additionally, isolation of bacteria capable to grow using MPB or BPB as carbon source was also carry out. Laboratory tests demonstrated the ability of these bacteria to biodegrade MPB and BPB from culture media in more than 95% in some cases. These strains showed high ability to biodegrade the compounds. Ten isolates, most of them related to Gram positive bacteria of the genus Bacillus, were identified by 16S rRNA gene sequencing. The study of the enzymatic activities of the isolates revealed both esterase (C4) and esterase-lipase activities.
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Affiliation(s)
- Belén Juárez-Jiménez
- Research Group of Environmental Microbiology, Department of Microbiology, Faculty of Pharmacy, Campus of Cartuja, And Water Institute, C/ Ramon y Cajal s/n, University of Granada, E-18071, Granada, Spain.
| | - Chiara Pesciaroli
- Department of Biotechnology and Bioscience, University of Milan Bicocca, Italy
| | - Paula Maza-Márquez
- Research Group of Environmental Microbiology, Department of Microbiology, Faculty of Pharmacy, Campus of Cartuja, And Water Institute, C/ Ramon y Cajal s/n, University of Granada, E-18071, Granada, Spain
| | - Sergio López-Martínez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, University of Granada, Campus of Fuentenueva, E-18071, Granada, Spain
| | - José Luís Vílchez-Quero
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, University of Granada, Campus of Fuentenueva, E-18071, Granada, Spain
| | - Alberto Zafra-Gómez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, University of Granada, Campus of Fuentenueva, E-18071, Granada, Spain.
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Habbal S, Haddou B, Canselier JP, Gourdon C. Easy Removal of Methylparaben and Propylparaben from Aqueous Solution Using Nonionic Micellar System. TENSIDE SURFACT DET 2019. [DOI: 10.3139/113.110611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
AbstractThis study aimed to investigate the simultaneous removal of methylparaben (MePB) and propylparaben (PrPB) from effluents (each one at 16 mg/L) using a nonionic micellar system containing Triton X-114. Response surface methodology (RSM) has been carried out. Extraction results using nonionic surfactant two-phase system were considered as a function of surfactant concentration and temperature variation. Four responses were investigated: MePB and PrPB extraction yield (E), solute (Xs,w) and surfactant (Xsf,w) concentrations in the aqueous phase and the volume fraction of micellar phase (ϕC) at equilibrium. Very high extraction efficiencies (99 % for PrPB and 84 % for MePB) were achieved at optimal conditions. Thereby, the amounts of PrPB and MePB were reduced 80 and 5 times, respectively. The extraction improvement using sodium sulfate was also shown. Finally, the solute stripping from micellar phase by pH change was proved.
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Affiliation(s)
- S. Habbal
- 1Laboratory of Physical Chemistry of Materials: Catalysis and Environment, University of Science and Technology of Oran, BP 1505, M'Nouar, Oran, Algeria
| | - B. Haddou
- 1Laboratory of Physical Chemistry of Materials: Catalysis and Environment, University of Science and Technology of Oran, BP 1505, M'Nouar, Oran, Algeria
| | - J. P. Canselier
- 2Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, 4 allé Emile Monso, CS 84234, 31 432 Toulouse cedex 4 Toulouse, France
| | - C. Gourdon
- 2Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, 4 allé Emile Monso, CS 84234, 31 432 Toulouse cedex 4 Toulouse, France
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