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Ye R, Huo W, Shao Y, Wang H, Lu W, Zhang H. Fungal community diversity and their contribution to nitrogen cycling in in-situ aerated landfills: Insights from field and laboratory studies. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 179:1-11. [PMID: 38442433 DOI: 10.1016/j.wasman.2024.02.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
The application of in-situ aeration technology in landfills has been reported to promote fungal growth, but the community diversity and function of fungi in the aerated landfill system remain unknown. This study firstly investigated an in-situ aerated remediation landfill site to characterize the fungal community diversity in refuse. And to further reveal the fungal involvement in the nitrogen cycling system, laboratory-scale simulated aerated landfill reactors were then constructed. The results in the aerated landfill site showed a significant correlation between fungal community structure and ammonia nitrogen content in the refuse. Dominant fungi in the fungal community included commonly found environmental fungi such as Fusarium, Aspergillus, Gibberella, as well as unique fungi in the aerated system like Chaetomium. In the laboratory-scale aerated landfill simulation experiments, the fungal system was constructed using bacterial inhibitor, and nitrogen balance analysis confirmed the significant role of fungal nitrification in the nitrogen cycling process. When ammonia nitrogen was not readily available, fungi converted organic nitrogen to nitrate, serving as the main nitrification mechanism in the system, with a contribution rate ranging from 62.71 % to 100 % of total nitrification. However, when ammonia nitrogen was present in the system, autotrophic nitrification became the main mechanism, and the contribution of fungal nitrification to total nitrification was only 15.96 %. Additionally, fungi were capable of directly utilizing nitrite for nitrate production with a rate of 4.65 mg L-1 d-1. This research article contributes to the understanding of the importance of fungi in the aerated landfill systems, filling a gap in knowledge.
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Affiliation(s)
- Rong Ye
- School of Environment, Tsinghua University, Beijing 100084, China; Nanjing Institute of Environment Sciences, Ministry of Ecology & Environment, Nanjing 210042, China
| | - Weizhong Huo
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yuchao Shao
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Hongtao Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Wenjing Lu
- School of Environment, Tsinghua University, Beijing 100084, China.
| | - Houhu Zhang
- Nanjing Institute of Environment Sciences, Ministry of Ecology & Environment, Nanjing 210042, China
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2
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Brasil YL, Silva AFR, Gomes RF, Amaral MCS. Technical and economic evaluation of the integration of membrane bioreactor and air-stripping/absorption processes in the treatment of landfill leachate. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 134:110-119. [PMID: 34418741 DOI: 10.1016/j.wasman.2021.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 07/17/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
A membrane bioreactor inoculated with commercial baker's yeast (Saccharomyces cerevisiae) (MBRy) integrated to an air-stripping/absorption (AS/AB) as pre-treatment (aiming ammonia recovery) or a post-treatment (polishment step) was assessed for the landfill leachate treatment. The effect of chemical oxygen demand (COD) and nitrogen (N) ratio (C:N) on the performance of the MBRy was also investigated. At high COD/N ratio, high organic matter removal in terms of COD (71 ± 4%) and ammonia removal (97 ± 3%) was observed. Lower COD/N ratio favored yeast growth in the mixed liquor even under adverse conditions. The results of ammonia removal and recovery, and economic analysis demonstrated that the best way to integrate the AS/BS processes is as pre-treatment of MBRy. The ammonia concentration in the AS/AB process feed was a key factor to achieve the market specification. Although pH and temperature adjustment were adequate to promote ammonia removal/recovery, the AS operation at high temperatures showed the highest ammonia removal rate (99%). Therefore, the integration of AS/AB with MBRy allows obtaining a permeate with a final concentration of 2902 ± 374 mg L-1 of COD and 9 ± 7.5 mg L-1 of ammonia. Although it was possible to reach the Brazilian discharge standard for ammonia (20 mg L-1), it was not possible to reach the standard for COD, where the remaining fraction is recalcitrant organic matter, requiring the integration of a physico-chemical process. It should be noted that the proposed route allowed recovery 7 kg of ammonia per m3 of treated leachate.
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Affiliation(s)
- Yara L Brasil
- Department of Sanitary and Environmental Engineering - Federal University of Minas Gerais, P.O. Box 1294, ZIP 30.270-901, Belo Horizonte, MG, Brazil.
| | - Ana F R Silva
- Department of Sanitary and Environmental Engineering - Federal University of Minas Gerais, P.O. Box 1294, ZIP 30.270-901, Belo Horizonte, MG, Brazil
| | - Rosimeire F Gomes
- Department of Sanitary and Environmental Engineering - Federal University of Minas Gerais, P.O. Box 1294, ZIP 30.270-901, Belo Horizonte, MG, Brazil
| | - Míriam C S Amaral
- Department of Sanitary and Environmental Engineering - Federal University of Minas Gerais, P.O. Box 1294, ZIP 30.270-901, Belo Horizonte, MG, Brazil
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Cirik K, Gocer S. Performance of anaerobic membrane bioreactor treating landfill leachate. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:383-393. [PMID: 33312567 PMCID: PMC7721753 DOI: 10.1007/s40201-019-00376-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 05/15/2019] [Indexed: 06/03/2023]
Abstract
BACKGROUND Landfill leachate has been known as non-biodegradable/hardly-biodegradable wastewater, which contains significant amount of soluble organic and inorganic compounds. However, membrane bioreactor (MBR) technology have become a more viable treatment option for complex and recalcitrant compounds compared to activated sludge systems. METHODS This study aims at evaluating the performance of anaerobic membrane bioreactor (AnMBR) for the treatment of middle/old-aged landfill leachate (LFL).AnMBR was operated at different hydraulic retention times (HRTs) (48-12 h) and relaxation and backwashing (30 min-5 min, 5 min-0.5 min) periods. Additionally, Air stripping (pH 8, 24 g lime/L, 1.4 L/s air flow rate) as a pretreatment was evaluated prior to AnMBR. RESULTS Air stripping removed about 90%, 25%, and 64% NH4 +, COD (Chemical Oxygen Demand) and color (RES620), respectively. The best results were obtained in combined air stripping-AnMBR operation corresponding to 95%, and 83% overall removals of color, and COD removals, respectively. Maximum methane yield and COD removal rate in AnMBR were 0.35 L methane/g COD removed and 5 gCOD removed /L.d, respectively. CONCLUSION Pretreatment provided higher AnMBR flux that reached to 5.5LMH but increased fouling frequency due to the calcium precipitates in AnMBR which was verified with SEM-EDX analysis. Additionally, DEHP and DINP were not detected in permeate indicating AnMBR was successful for removing these micropollutants. This study showed that pretreatment clearly increased methane yield and COD removal rate.
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Affiliation(s)
- Kevser Cirik
- Department of Environmental Engineering, Kahramanmaras Sutcu Imam University, 46100 Kahramanmaras, Turkey
| | - Serdar Gocer
- Department of Environmental Engineering, Çukurova University, 01330 Adana, Turkey
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C. C. Martins D, J. Scandelai AP, Cardozo‐Filho L, G. Tavares CR. Supercritical water oxidation treatment of humic acid as a model organic compound of landfill leachate. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23691] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Lúcio Cardozo‐Filho
- Department of Chemical EngineeringUniversidade Estadual de Maringa Maringa Brazil
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Collado S, Oulego P, Suárez-Iglesias O, Díaz M. Leachates and natural organic matter. A review of their biotreatment using fungi. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 96:108-120. [PMID: 31376954 DOI: 10.1016/j.wasman.2019.07.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Leachates have different concentrations of organic matter and levels of biodegradability, depending on the age of the landfill and they must be treated using appropriate techniques, such as fungal degradation, in order to protect the environment and water resources. Natural organic matter contains the same type of organic species as old and medium age leachates, but at lower concentrations. The present study compiles and assesses all the available literature on the biotreatment of these compounds, mainly humic acids, by fungi. It was found that the efficiency of the fungal biodegradation of these wastewaters depends on the characteristics and concentration of the organic matter in the leachate, the microorganisms selected and whether they were immobilized or not, the nutrients present in the medium and their concentrations, the experimentation time, the temperature and the pH. The influence of the mode of inoculation has only been studied in natural organic matter, but similar effects are expected in the treatment of the leachates. The interactions between these parameters are complex and the optimal conditions have to be determined by laboratory and pilot testing, employing multivariate statistical techniques and experimental design.
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Affiliation(s)
- Sergio Collado
- Department of Chemical and Environmental Engineering, University of Oviedo, c/ Julián Clavería s/n, E-33071 Oviedo, Spain
| | - Paula Oulego
- Department of Chemical and Environmental Engineering, University of Oviedo, c/ Julián Clavería s/n, E-33071 Oviedo, Spain
| | - Octavio Suárez-Iglesias
- Department of Chemical and Environmental Engineering, University of Oviedo, c/ Julián Clavería s/n, E-33071 Oviedo, Spain
| | - Mario Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, c/ Julián Clavería s/n, E-33071 Oviedo, Spain.
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Brito GCB, Lange LC, Santos VL, Amaral MCS, Moravia WG. Long-term evaluation of membrane bioreactor inoculated with commercial baker's yeast treating landfill leachate: pollutant removal, microorganism dynamic and membrane fouling. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:398-410. [PMID: 30865611 DOI: 10.2166/wst.2019.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, commercial baker's yeast (Saccharomyces cerevisiae) was employed as a novel inoculum for a membrane bioreactor (MBRy). It was applied to landfill leachate (LFL) treatment to remove recalcitrant organic compounds as well as for the assimilation of recalcitrant compounds, since yeasts have a high ability to break such compounds down. The MBR was inoculated with 10 g L-1 of commercial baker's yeast and was operated at a hydraulic retention time of 48 h and pH of 3.5. The specific air demand based on the membrane area (SADm) was maintained at 0.6 m3 h-1 m-2. The MBRy achieved chemical oxygen demand (COD), color, NH3, and humic substances removal of 68, 79, 68, and 50%, respectively. Furthermore, the MBRy showed lower fouling potential, which can be attributed to the low extracellular polymeric substances production, as the formation of a cake layer was the major mechanism of membrane fouling. The work demonstrated that novel MBR is a promising technology for treating recalcitrant landfill leachate.
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Affiliation(s)
- Gabriela C B Brito
- Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Antônio Carlos Av. 6627, ZIP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Liséte C Lange
- Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Antônio Carlos Av. 6627, ZIP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Vera L Santos
- Department of Microbiology, Universidade Federal de Minas Gerais, Antônio Carlos Av. 6627, ZIP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Míriam C S Amaral
- Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Antônio Carlos Av. 6627, ZIP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Wagner G Moravia
- Departments of Environmental Science and Technology, Federal Center of Technological Education of Minas Gerais, Amazonas Av. 5253, ZIP 30421-169, Belo Horizonte, Minas Gerais, Brazil E-mail:
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7
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Fang C, Mao H, Long Y. Removal of phthalic acid dieters with dissolved organic matter by an anaerobic/anoxic/oxic leachate treatment process. RSC Adv 2019; 9:38807-38813. [PMID: 35540194 PMCID: PMC9075966 DOI: 10.1039/c9ra08323e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 11/21/2019] [Indexed: 11/24/2022] Open
Abstract
The removal of di-n-butyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) with dissolved organic matter (DOM) was studied in a laboratory scale anaerobic/anoxic/oxic reactor for landfill leachate treatment. The removal rate was up to 98.0% for DBP and 78.2% for DEHP, which was related to humification of DOM (i.e., the aromaticity and molecular weight (MW) of humic substances in landfill leachate). The dissolved organic carbon (DOC) was mostly humic acid and fulvic acid in the fraction of 1–100 kDa MW, indicating strong aromaticity and a high DBP/DEHP concentration. With complete removal of the fraction, the removal rate of DBP/DEHP was also high. The positive correlation of the DOC and DBP/DEHP concentration in raw leachate and the effluent from each reactor showed that the interaction between DOM and DBP/DEHP facilitated the removal of organic pollutants. The removal of di-n-butyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) with dissolved organic matter (DOM) was studied in a laboratory scale anaerobic/anoxic/oxic reactor for landfill leachate treatment.![]()
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Affiliation(s)
- Chengran Fang
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province
- School of Environmental and Natural Resources
- Zhejiang University of Science and Technology
- Hangzhou 310023
- China
| | - Hongzhi Mao
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province
- School of Environmental and Natural Resources
- Zhejiang University of Science and Technology
- Hangzhou 310023
- China
| | - Yuyang Long
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- China
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8
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Amaral MCS, Brito GCB, Reis BG, Lange LC, Moravia WG. Comparison of commercial baker's yeast versus bacteria-based membrane bioreactors for landfill leachate treatment. ENVIRONMENTAL TECHNOLOGY 2018; 39:2365-2372. [PMID: 28712332 DOI: 10.1080/09593330.2017.1355931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 07/12/2017] [Indexed: 06/07/2023]
Abstract
This study compares the performance of the membrane bioreactor (MBR) inoculated with commercial baker's yeast (Saccharomyces cerevisiae) (MBRy) versus one inoculated with bacterial sludge (MBRb) for treatment of landfill leachate. The MBRb and MBRy were operated with a hydraulic retention time of 48 h, solids retention time of 60 d, and specific air demand based on membrane area of 0.6 m3 h-1 m-2. The MBRy was more efficient in removing chemical oxygen demand (COD) (68 ± 12%), color (79 ± 8%), ammoniacal nitrogen (58 ± 18%), and phosphorus (62 ± 19%) compared to MBRb, which showed removal efficiencies of 44 ± 18%, 46 ± 20%, 45 ± 17%, and 29 ± 15% for COD, color, ammoniacal nitrogen, and phosphorus. Furthermore, the MBRy had lower production of soluble microbial products, which are the main cause of membrane fouling, and so a lower membrane fouling potential. The average hydraulic permeability of the MBRy (32.23 L m-2 h-1 bar-1) was about four times higher than that of the MBRb (8.34 L m-2 h-1 bar-1). Thus using commercial baker's yeasts as a MBR inoculum can enhance pollutants' removal and membrane performance.
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Affiliation(s)
- M C S Amaral
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - G C B Brito
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - B G Reis
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - L C Lange
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - W G Moravia
- b Departments of Environmental Science and Technology , Federal Center of Technological Education of Minas Gerais , Belo Horizonte , Brazil
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9
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Dabaghian Z, Peyravi M, Jahanshahi M, Rad AS. Potential of Advanced Nano-structured Membranes for Landfill Leachate Treatment: A Review. CHEMBIOENG REVIEWS 2018. [DOI: 10.1002/cben.201600020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zoheir Dabaghian
- Babol Noshirvani University of Technology; Department of Chemical Engineering; Nanotechnology Research Institute; Shariati Ave. 47148-71167 Babol Iran
| | - Majid Peyravi
- Babol Noshirvani University of Technology; Department of Chemical Engineering; Nanotechnology Research Institute; Shariati Ave. 47148-71167 Babol Iran
| | - Mohsen Jahanshahi
- Babol Noshirvani University of Technology; Department of Chemical Engineering; Nanotechnology Research Institute; Shariati Ave. 47148-71167 Babol Iran
| | - Ali Shokuhi Rad
- Islamic Azad University; Department of Chemical Engineering; Qaemshahr Branch; Qaemshahr Iran
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10
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Amaral MCS, Gomes RF, Brasil YL, Oliveira SMA, Moravia WG. Performance evaluation of startup for a yeast membrane bioreactor (MBRy) treating landfill leachate. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:1352-1360. [PMID: 28910583 DOI: 10.1080/10934529.2017.1357407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The startup process of a membrane bioreactor inoculated with yeast biomass (Saccharomyces cerevisiae) and used in the treatment of landfill leachate was evaluated. The yeast membrane bioreactor (MBRy) was inoculated with an exogenous inoculum, a granulated active dry commercial bakers' yeast. The MBRy was successfully started up with a progressive increase in the landfill leachate percentage in the MBRy feed and the use of Sabouraud Dextrose Broth. The membrane plays an important role in the startup phase because of its full biomass retention and removal of organic matter. MBRy is a suitable and promising process to treat recalcitrant landfill leachate. After the acclimation period, the COD and NH3 removal efficiency reached values of 72 ± 3% and 39 ± 2% respectively. MBRy shows a low membrane-fouling potential. The membrane fouling was influenced by soluble microbial products, extracellular polymeric substances, sludge particle size, and colloidal dissolved organic carbon.
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Affiliation(s)
- Míriam C S Amaral
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Rosimeire F Gomes
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Yara L Brasil
- b Departments of Environmental Science and Technology , Federal Center of Technological Education of Minas Gerais , Belo Horizonte , Brazil
| | - Sílvia M A Oliveira
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Wagner G Moravia
- b Departments of Environmental Science and Technology , Federal Center of Technological Education of Minas Gerais , Belo Horizonte , Brazil
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11
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Reis BG, Silveira AL, Tostes Teixeira LP, Okuma AA, Lange LC, Amaral MCS. Organic compounds removal and toxicity reduction of landfill leachate by commercial bakers' yeast and conventional bacteria based membrane bioreactor integrated with nanofiltration. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 70:170-180. [PMID: 28974334 DOI: 10.1016/j.wasman.2017.09.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 09/04/2017] [Accepted: 09/25/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to compare the performance of a commercial bakers' yeast (MBRy) and conventional bacteria (MBRb) based membrane bioreactor integrated with nanofiltration (NF) in the removal of landfill leachate toxicity. Performances were evaluated using physicochemical analyses, toxicity tests and identification of organic compounds. The MBRb and MBRy were operated with a hydraulic retention time (HRT) of 48h and solids retention time (SRT) of 60 d. The MBRy demonstrated better removal efficiencies for COD (69±7%), color (54±11%) and ammoniacal nitrogen (34±7%) compared to MBRb, which showed removal efficiencies of 27±5%, 33±4% and 27±7%, for COD, color and ammoniacal nitrogen. Although the MBRy seems to be the configuration that presented the highest efficiency; it generated toxic permeate whose toxicity cannot be explained by physicochemical results. The identification of compounds shows that there is a wide range of compounds in the landfill leachate in addition to others that are produced in the biological treatment steps. The NF plays a crucial role in the polishing of the final effluents by the either complete or partial retention of compounds, that attribute toxicity to the leachate, and inorganic contaminants.
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Affiliation(s)
- Beatriz Gasparini Reis
- Dept. of Sanitary and Environmental Engeneering, Federal University Of Minas Gerais, Presidente Antônio Carlos Avenue, 6627, Engeneering School - 4th flloor, Pampulha, Belo Horizonte/MG CEP: 31.270-901, Brazil
| | - Amanda Lemes Silveira
- Dept. of Chemistry, Federal Center of Technological Education of Minas Gerais, Campus I, Amazonas Avenue, 5253, Belo Horizonte/MG CEP: 30.421-169, Brazil
| | - Luiza Procópio Tostes Teixeira
- Dept. of Sanitary and Environmental Engeneering, Federal University Of Minas Gerais, Presidente Antônio Carlos Avenue, 6627, Engeneering School - 4th flloor, Pampulha, Belo Horizonte/MG CEP: 31.270-901, Brazil
| | - Adriana Akemi Okuma
- Dept. of Chemistry, Federal Center of Technological Education of Minas Gerais, Campus I, Amazonas Avenue, 5253, Belo Horizonte/MG CEP: 30.421-169, Brazil
| | - Liséte Celina Lange
- Dept. of Sanitary and Environmental Engeneering, Federal University Of Minas Gerais, Presidente Antônio Carlos Avenue, 6627, Engeneering School - 4th flloor, Pampulha, Belo Horizonte/MG CEP: 31.270-901, Brazil
| | - Miriam Cristina Santos Amaral
- Dept. of Sanitary and Environmental Engeneering, Federal University Of Minas Gerais, Presidente Antônio Carlos Avenue, 6627, Engeneering School - 4th flloor, Pampulha, Belo Horizonte/MG CEP: 31.270-901, Brazil.
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12
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Remmas N, Melidis P, Katsioupi E, Ntougias S. Effects of high organic load on amoA and nirS gene diversity of an intermittently aerated and fed membrane bioreactor treating landfill leachate. BIORESOURCE TECHNOLOGY 2016; 220:557-565. [PMID: 27614578 DOI: 10.1016/j.biortech.2016.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/28/2016] [Accepted: 09/02/2016] [Indexed: 06/06/2023]
Abstract
The effects of external carbon source addition on the nitrification and denitrification process were investigated in an intermittently aerated and fed membrane bioreactor treating landfill leachate by recording system performance, and amoA and nirS diversity dynamics using pyrosequencing. By adding 950mg/L glycerol, denitrification was optimized, resulting in total nitrogen removal efficiency of 81.0±2.4%. Under these conditions, amoA diversity was dominated by genotypes related to Nitrosomonas europaea, while increase in leachate's content and in glycerol addition by 50% led to irreversible inhibition of nitrification and enhanced ammonia accumulation, causing a severe suppression of Nitrosomonas and an increase in the relative abundance of Nitrosospira. However, this increase not only affected ammonia oxidizers, but also caused a massive shift in denitrifying community structure, resulting in the suppression of Arenimonas metalli-, Candidatus Accumulibacter- and Sulfuritalea hydrogenivorans-nirS related genotypes and the predominance of nirS-associated with Acidovorax and Thaurea sp.
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Affiliation(s)
- Nikolaos Remmas
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67100 Xanthi, Greece
| | - Paraschos Melidis
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67100 Xanthi, Greece
| | - Efthymia Katsioupi
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67100 Xanthi, Greece
| | - Spyridon Ntougias
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67100 Xanthi, Greece.
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Hashisho J, El-Fadel M, Al-Hindi M, Salam D, Alameddine I. Hollow fiber vs. flat sheet MBR for the treatment of high strength stabilized landfill leachate. WASTE MANAGEMENT (NEW YORK, N.Y.) 2016; 55:249-56. [PMID: 26775757 DOI: 10.1016/j.wasman.2015.12.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/27/2015] [Accepted: 12/20/2015] [Indexed: 05/27/2023]
Abstract
The Membrane Bioreactor (MBR) technology is increasingly becoming a prominent process in the treatment of high-strength wastewater such as leachate resulting from the decomposition of waste in landfills. This study presents a performance comparative assessment of flat sheet and hollow fiber membranes in bioreactors for the treatment of relatively stable landfill leachate with the objective of defining guidelines for pilot/full scale plants. For this purpose, a laboratory scale MBR system was constructed and operated to treat a leachate with Chemical Oxygen Demand (COD) (3900-7800mg/L), Biochemical Oxygen Demand (BOD5) (∼440-1537mg/L), Total Phosphorus (TP) (∼10-59mg/L), Phosphate (PO4(3)(-)) (5-58mg/L), Total Nitrogen (TN) (1500-5200mg/L), and ammonium (NH4(+)) (1770-4410mg/L). Both membranes achieved comparable BOD (92.2% vs. 93.2%) and TP (79.4% vs. 78.5%) removals. Higher PO4(3)(-) removal efficiency or percentage (87.3% vs. 81.3%) and slightly higher, but not statistically significant, COD removal efficiency were obtained with the hollow fiber membrane (71.4% vs. 68.5%). On the other hand, the flat sheet membrane achieved significantly higher TN and NH4(+) removal efficiencies (61.2% vs. 49.4% and 63.4% vs. 47.8%, respectively), which may be attributed to the less frequent addition of NaOCl compared to the hollow fiber system.
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Affiliation(s)
- J Hashisho
- Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut, Bliss Street, PO Box 11-0236, Beirut, Lebanon
| | - M El-Fadel
- Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut, Bliss Street, PO Box 11-0236, Beirut, Lebanon.
| | - M Al-Hindi
- Department of Chemical Engineering, Faculty of Engineering and Architecture, American University of Beirut, Bliss Street, PO Box 11-0236, Beirut, Lebanon
| | - D Salam
- Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut, Bliss Street, PO Box 11-0236, Beirut, Lebanon
| | - I Alameddine
- Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut, Bliss Street, PO Box 11-0236, Beirut, Lebanon
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14
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Wang B, Li W, Liu L, Huang GH. Influence of sludge reflux ratios on biodegradation performance in a coupled landfill leachate treatment process based on UASB and submerged MBR. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:701-706. [PMID: 27128816 DOI: 10.1080/10934529.2016.1170428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study was undertaken to investigate the effects of different sludge reflux ratios (SRRs) on the overall performance and the fouling behavior of the up-flow anaerobic sludge blanket (UASB) reactor-anoxic-membrane bioreactor (MBR). The leachate and synthetic municipal wastewater were mixed in order to improve the biodegradability of the old leachate. Results showed that excellent removal efficiencies for chemical oxygen demand (COD) and ammonia nitrogen (NH3-N) were obtained by using the integrated UASB-anoxic-MBR process. The average COD removals were 91.01%, 93.90%, and 92.67% and that of NH3-N were 98.1%, 98.5%, and 98.9% when SRRs were 100%, 300%, and 500%, respectively. The study of the membrane fouling mechanism indicated that proteins, hydrocarbons and inorganic matter are the main elements of the cake layers.
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Affiliation(s)
- Bing Wang
- a Environmental Research Academy, North China Electric Power University , Beijing , China
| | - Wei Li
- a Environmental Research Academy, North China Electric Power University , Beijing , China
| | - Lei Liu
- a Environmental Research Academy, North China Electric Power University , Beijing , China
| | - Guo He Huang
- a Environmental Research Academy, North China Electric Power University , Beijing , China
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Amaral MCS, Moravia WG, Lange LC, Zico MR, Magalhães NC, Ricci BC, Reis BG. Pilot aerobic membrane bioreactor and nanofiltration for municipal landfill leachate treatment. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:640-649. [PMID: 27050340 DOI: 10.1080/10934529.2016.1159874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The purpose of this article is to evaluate the integration of the air stripping, membrane bioreactor (MBR) and nanofiltration (NF) processes for the treatment of landfill leachate (LFL). Pretreatment by air stripping, without adjustment of pH, removed 65% of N-NH3 present in LFL. After pretreatment, the effluent was treated in MBR obtaining 44% of COD removal, and part of the N-NH3 was converted to nitrite and nitrate, which was later removed in the post-treatment. Nanofiltration was shown to be an effective process to improve the removal of organic compounds, the high toxicity present in LFL and nitrite and nitrate generated in the MBR. The system (air stripping + MBR + nanofiltration) obtained great efficiency of removal in most parameters analyzed, with overall removal of COD, ammonia, color and toxicity approximately 88, 95, 100 and 100%, respectively. By this route, treated landfill leachate may be reused at the landfill as water for dust arrestment and also as earth work on construction sites.
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Affiliation(s)
- Míriam C S Amaral
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Wagner G Moravia
- b Departments of Environmental Science and Technology , Federal Center of Technological Education of Minas Gerais , Belo Horizonte , Brazil
| | - Liséte C Lange
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Mariana R Zico
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Natalie C Magalhães
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Bárbara C Ricci
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Beatriz G Reis
- a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil
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Fazal S, Zhang B, Zhong Z, Gao L, Chen X. Industrial Wastewater Treatment by Using MBR (Membrane Bioreactor) Review Study. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jep.2015.66053] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Treatment of Landfill Leachate in Membranes Bioreactor with Yeast (Saccharomyces Cerevisiae). ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.08.627] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Gálvez A, Zamorano M, Ramos-Ridao AF. Efficiency of a biological aerated filter for the treatment of leachate produced at a landfill receiving non-recyclable waste. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2012; 47:54-59. [PMID: 22217082 DOI: 10.1080/10934529.2012.629580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The feasibility of a biological aerated filter for the treatment of a partially stabilized leachate from a landfill receiving non-recyclable wastes was assessed in laboratory-scale experiments. Maximum COD, BOD(5) and TSS removal efficiencies achievable by the biofilter as well as the optimal hydraulic and organic loading rates were determined by laboratory-scale tests in batch and continuous mode. Experiments in batch mode which lasted for 7 days showed that COD and BOD(5) removal efficiencies were stabilized after the second day of operation and kept at around 56-60% and 83-97%, respectively, for the rest of the period studied. The remaining fraction (approximately 40% of the COD) was found to be composed of recalcitrant or not easily biodegradable compounds. The COD and BOD(5) removal efficiencies decreased with increasing hydraulic loading rates. The plant worked under optimal conditions at hydraulic loading rates of 0.71 and 1.41 m(3)/m(2)d (hydraulic retention times of 15.95 and 7.97 h, respectively) and at COD loading rates below 14 kg COD/m(3), where COD removal efficiencies were around 60%. TSS removal efficiencies were not significantly influenced by the hydraulic loading rate. The results obtained demonstrated the feasibility of a biological aerated filter for the removal of the biodegradable fraction of the organic matter contained in the leachate. However, a physicochemical process was found to be necessary as pre- or post-treatment for the removal of the recalcitrant fraction.
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Affiliation(s)
- A Gálvez
- Department of Civil Engineering, University of Granada, Campus Fuentenueva 18071, Granada, Spain.
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Hasar H, Unsal SA, Ipek U, Karatas S, Cinar O, Yaman C, Kinaci C. Stripping/flocculation/membrane bioreactor/reverse osmosis treatment of municipal landfill leachate. JOURNAL OF HAZARDOUS MATERIALS 2009; 171:309-317. [PMID: 19559524 DOI: 10.1016/j.jhazmat.2009.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Revised: 05/29/2009] [Accepted: 06/02/2009] [Indexed: 05/28/2023]
Abstract
This study presents a configuration for the complete treatment of landfill leachate with high organic and ammonium concentrations. Ammonia stripping is performed to overcome the ammonia toxicity to aerobic microorganisms. By coagulation-flocculation process, COD and suspended solids (SS) were removed 36 and 46%, respectively. After pretreatment, an aerobic/anoxic membrane bioreactor (Aer/An MBR) accomplished the COD and total inorganic nitrogen (total-N(i)) removals above 90 and 92%, respectively, at SRT of 30 days. Concentrations of COD and total-N(i) (not considering organic nitrogen) in the Aer/An MBR effluent decreased to 450 and 40 mg/l, respectively, by significant organic oxidation and nitrification/denitrification processes. As an advanced treatment for the leachate, the reverse osmosis (RO) was applied to the collected Aer/An MBR effluents. Reverse osmosis provided high quality effluent by reducing the effluent COD from MBR to less than 4.0mg/l at SRT of 30 days.
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Affiliation(s)
- Halil Hasar
- Department of Environmental Engineering, Faculty of Engineering, Firat University, 23119 Elazig, Turkey.
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20
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Tang ZQ, Li W, Zhou J, Yu HY, Huang L, Yan MG, Gu JS, Wei XW. Antifouling characteristics of sugar immobilized polypropylene microporous membrane by activated sludge and bovine serum albumin. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2008.10.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Alvarez-Vazquez H, Pidou M, Holdner J, Judd SJ. Character of extracellular polymeric substances and soluble microbial products and their effect on membrane hydraulics during airlift membrane bioreactor applications. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2008; 80:2193-2201. [PMID: 19146096 DOI: 10.2175/106143008x304721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The effect of extracellular polymeric substances and soluble microbial products developed from wastewater and mature landfill leachate biomass was assessed using a pilot-scale membrane bioreactor operating polymeric and ceramic air-lift sidestream multichannel membranes. The plant was operated under identical conditions of sludge retention time, system hydrodynamics ,and parity of food-to-microorganism ratios. Biomass samples were extracted and fractionated (fixed and bound material, carbohydrate and protein extracts) and chemically and physically analyzed with the feedwaters. Both ceramic and polymeric membranes were tested and the critical flux (J(C)) determined according to the classical flux-step analysis. Although permeability (K) of both materials reduced with increasing flux (J), the ceramic material had a higher resistance to fouling, demonstrating a higher K (by a factor of 1.2 and 3.2 for wastewater and leachate, respectively, at J of 30 L x m(-2) x h(-1)) and lower fouling rate (dP/dt) (by more than an order of magnitude at the same J) than the polymeric membrane. Evidence suggests that deterioration of membrane permeability resulting from leachate biomass arises from the feedwater itself, rather than the products derived from the biomass, and that colloidal and/or soluble total organic carbon is primarily responsible for it.
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Sadri S, Cicek N, Van Gulck J. Aerobic treatment of landfill leachate using a submerged membrane bioreactor--prospects for on-site use. ENVIRONMENTAL TECHNOLOGY 2008; 29:899-907. [PMID: 18724645 DOI: 10.1080/09593330802075379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Submerged membrane bioreactor (MBR) technology for aerobic treatment of landfill leachate was studied in laboratory scale to evaluate its potential for on-site use. Three combinations of solid retention time (SRT) - hydraulic retention time (HRT) of 60 days - 3.5 days, 60 days - 2 days and 30 days - 1 day, were examined to evaluate reactor performance under varying loading and biomass conditions. Chemical Oxygen Demand (COD) removal ranged from 54 to 78%, depending on the influent leachate source and loading conditions. The MBR showed excellent Biological Oxygen Demand (BOD5) removal of 97% and higher, even at HRT as low as 1 day. Complete suspended solids retention and full nitrification of the incoming ammonia was observed despite highly variable loading. Significant removal of iron, lead, manganese, cadmium and aluminum was observed. No significant changes in the removal efficiency of metals, ammonia, and BOD5 were observed at different SRT-HRT. Toxicity removal decreased with increasing HRT. The produced effluent met current water quality guidelines for discharge into natural streams in Manitoba.
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Affiliation(s)
- S Sadri
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
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23
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Karadag D, Tok S, Akgul E, Turan M, Ozturk M, Demir A. Ammonium removal from sanitary landfill leachate using natural Gördes clinoptilolite. JOURNAL OF HAZARDOUS MATERIALS 2008; 153:60-6. [PMID: 17868987 DOI: 10.1016/j.jhazmat.2007.08.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Revised: 08/07/2007] [Accepted: 08/08/2007] [Indexed: 05/17/2023]
Abstract
Removal of ammonium ion (NH(4)(+)) from leachate from Odayeri sanitary landfill, located in the European part of Istanbul, was examined using Gördes (Turkish) clinoptilolite. The effects of pH, flow rate, ammonium concentration and competitive cations on the removal efficiency were investigated in both batch and column studies. Thomas model were used to analyze the breakthrough data. Nonlinear least square method was applied for fitting the column data. The competitive effect was observed more effective in lower ammonium concentration and higher cation concentrations. Conditioning and regeneration using NaCl improved removal efficiency of ammonium from leachate.
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Affiliation(s)
- Dogan Karadag
- Yildiz Technical University, Civil Engineering Faculty, Environmental Engineering, Department, Besiktas, Istanbul, Turkey.
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24
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Landfill leachate treatment by MBR: Performance and molecular weight distribution of organic contaminant. ACTA ACUST UNITED AC 2006. [DOI: 10.1007/s11434-006-2177-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Current awareness on yeast. Yeast 2005; 22:241-8. [PMID: 15762016 DOI: 10.1002/yea.1159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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26
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Gálvez A, Zamorano M, Ramos A, Hontoria E. Coagulation-flocculation pretreatment of a partially stabilized leachate from a sanitary landfill site at Alhendin (Granada, Southern Spain). JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2005; 40:1741-51. [PMID: 16134365 DOI: 10.1081/ese-200068032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Leachate recirculation, biological, and physicochemical treatment processes are used to treat leachate landfill, but all treatment technologies seem to need a combination of two or more methods to obtain an effluent with suitable properties to eliminate environmental problems. In spite of the considerable literature focused on the coagulation-flocculation applied to landfill leachate before biological treatments, most investigations are developed to study different operating variables as leachate characteristics, type, and concentrations of chemical products applied. Two ferric coagulants (ferric chloride and Ferriclar), two aluminum coagulants (PAX-18 and SAL-8.2), an organic coagulant and flocculant (Chemifloc PA-15), several anionic flocculant (Chemifloc A05.L, A10.L, A20L, and A30.L), and a non-ionic flocculant (Chemifloc N01) were used in jar-test experiments to determine the best conditions for the removal of chemical oxygen demand (COD) and total solids (TS) from a partially stabilized leachate collected at a sanitary landfill site at Alhendín (Granada, Southern Spain). The organic coagulant-flocculant PA-15 showed highest (17%) COD and TS removal efficiencies at a concentration of 2 mL/L. All combinations of coagulants and flocculants enhanced the COD removal efficiency. The best results (more than 25% COD removal) were obtained with a combination of ferric or aluminum-based salts in combination with high molecular weight flocculants.
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Affiliation(s)
- A Gálvez
- Department of Civil Engineering, University of Granada, Spain
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