51
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Hou D, Lu L, Sun D, Ge Z, Huang X, Cath TY, Ren ZJ. Microbial electrochemical nutrient recovery in anaerobic osmotic membrane bioreactors. WATER RESEARCH 2017; 114:181-188. [PMID: 28249209 DOI: 10.1016/j.watres.2017.02.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/14/2017] [Accepted: 02/15/2017] [Indexed: 06/06/2023]
Abstract
This study demonstrates that by incorporating a microbial electrochemical unit into an anaerobic osmotic membrane bioreactor (AnOMBR), the system addressed several challenges faced by traditional anaerobic membrane bioreactors and recovered biogas, nitrogen, and phosphorus while maintaining high effluent quality with low dissolved methane. The microbial recovery cell (MRC)-AnOMBR system showed excellent organic (>93%) and phosphorus removal (>99%) and maintained effluent COD below 20 mg/L. Furthermore, the reactor effectively recovered up to 65% PO43- and 45% NH4+ from the influent, which can be further improved if membranes with higher selectivity are used. Nutrients removal from bulk solution mitigated NH4+ penetration to the draw solution and reduced scaling potential caused by PO43-. The maximum methane yield was 0.19 L CH4/g COD, and low methane (<2.5 mL CH4/L) was detected in the effluent. Further improvement can be made by increasing charge efficiency for better nutrient and energy recovery.
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Affiliation(s)
- Dianxun Hou
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA
| | - Lu Lu
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA
| | - Dongya Sun
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China
| | - Zheng Ge
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA
| | - Xia Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China
| | - Tzahi Y Cath
- Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, USA
| | - Zhiyong Jason Ren
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA.
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52
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Forward osmosis as a platform for resource recovery from municipal wastewater - A critical assessment of the literature. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.01.054] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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53
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Wang X, Wang C, Tang CY, Hu T, Li X, Ren Y. Development of a novel anaerobic membrane bioreactor simultaneously integrating microfiltration and forward osmosis membranes for low-strength wastewater treatment. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.062] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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54
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Liu J, Wang X, Wang Z, Lu Y, Li X, Ren Y. Integrating microbial fuel cells with anaerobic acidification and forward osmosis membrane for enhancing bio-electricity and water recovery from low-strength wastewater. WATER RESEARCH 2017; 110:74-82. [PMID: 27998785 DOI: 10.1016/j.watres.2016.12.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/04/2016] [Accepted: 12/09/2016] [Indexed: 06/06/2023]
Abstract
Microbial fuel cells (MFCs) and forward osmosis (FO) are two emerging technologies with great potential for energy-efficient wastewater treatment. In this study, anaerobic acidification and FO membrane were simultaneously integrated into an air-cathode MFC (AAFO-MFC) for enhancing bio-electricity and water recovery from low-strength wastewater. During a long-term operation of approximately 40 days, the AAFO-MFC system achieved a continuous and relatively stable power generation, and the maximum power density reached 4.38 W/m3. The higher bio-electricity production in the AAFO-MFC system was mainly due to the accumulation of ethanol resulted from anaerobic acidification process and the rejection of FO membrane. In addition, a proper salinity environment in the system controlled by the addition of MF membrane enhanced the electricity production. Furthermore, the AAFO-MFC system produced a high quality effluent, with the removal rates of organic matters and total phosphorus of more than 97%. However, the nitrogen removal was limited for the lower rejection of FO membrane. The combined biofouling and inorganic fouling were responsible for the lower water flux of FO membrane, and the Desulfuromonas sp. utilized the ethanol for bio-electricity production was observed in the anode. These results substantially improve the prospects for simultaneous wastewater treatment and energy recovery, and further studies are needed to optimize the system integration and operating parameters.
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Affiliation(s)
- Jinmeng Liu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Xinhua Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China.
| | - Zhiwei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Yuqin Lu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Xiufen Li
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China.
| | - Yueping Ren
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
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55
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Hu T, Wang X, Wang C, Li X, Ren Y. Impacts of inorganic draw solutes on the performance of thin-film composite forward osmosis membrane in a microfiltration assisted anaerobic osmotic membrane bioreactor. RSC Adv 2017. [DOI: 10.1039/c7ra01524k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Donnan equilibrium led to a higher NH4+–N concentration and more severe FO biofouling for the draw solutes NaCl and MgCl2, respectively.
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Affiliation(s)
- Taozhan Hu
- Jiangsu Key Laboratory of Anaerobic Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Xinhua Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chen Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Xiufen Li
- Jiangsu Key Laboratory of Anaerobic Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Yueping Ren
- Jiangsu Key Laboratory of Anaerobic Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
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56
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A refined draw solute flux model in forward osmosis: Theoretical considerations and experimental validation. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.08.053] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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57
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Ansari AJ, Hai FI, Guo W, Ngo HH, Price WE, Nghiem LD. Factors governing the pre-concentration of wastewater using forward osmosis for subsequent resource recovery. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:559-566. [PMID: 27236621 DOI: 10.1016/j.scitotenv.2016.05.139] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/19/2016] [Accepted: 05/19/2016] [Indexed: 06/05/2023]
Abstract
This study demonstrated a technique using forward osmosis (FO) to pre-concentrate the organic matter in raw wastewater, thereby transforming low strength wastewater into an anaerobically digestible solution. The chemical oxygen demand (COD) of raw wastewater was concentrated up to approximately eightfold at a water recovery of 90%. Thus, even low strength wastewater could be pre-concentrated by FO to the range suitable for biogas production via anaerobic treatment. Excessive salinity accumulation in pre-concentrated wastewater was successfully mitigated by adopting ionic organic draw solutes, namely, sodium acetate, and EDTA-2Na. These two draw solutes are also expected to benefit the digestibility of the pre-concentrated wastewater compared to the commonly used draw solute sodium chloride. Significant membrane fouling was observed when operating at 90% water recovery using raw wastewater. Nevertheless, membrane fouling was reversible and was effectively controlled by optimising the hydrodynamic conditions of the cross-flow FO system.
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Affiliation(s)
- Ashley J Ansari
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Hao H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia.
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58
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Song X, McDonald J, Price WE, Khan SJ, Hai FI, Ngo HH, Guo W, Nghiem LD. Effects of salinity build-up on the performance of an anaerobic membrane bioreactor regarding basic water quality parameters and removal of trace organic contaminants. BIORESOURCE TECHNOLOGY 2016; 216:399-405. [PMID: 27262094 DOI: 10.1016/j.biortech.2016.05.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/14/2016] [Accepted: 05/19/2016] [Indexed: 06/05/2023]
Abstract
The effects of elevated inorganic salt concentration on anaerobic membrane bioreactor (AnMBR) treatment regarding basic biological performance and trace organic contaminant (TrOC) removal were investigated. A set of 33 TrOCs were selected to represent pharmaceuticals, steroids, and pesticides in municipal wastewater. Results show potential adverse effects of increase in the bioreactor salinity to 15g/L (as NaCl) on the performance of AnMBR with respect to chemical oxygen demand removal, biogas production, and the removal of most hydrophilic TrOCs. Furthermore, a decrease in biomass production was observed as salinity in the bioreactor increased. The removal of most hydrophobic TrOCs was high and was not significantly affected by salinity build-up in the bioreactor. The accumulation of a few persistent TrOCs in the sludge phase was observed, but such accumulation did not vary significantly as salinity in the bioreactor increased.
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Affiliation(s)
- Xiaoye Song
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - James McDonald
- School of Civil and Environmental Engineering, University of New South Wales, NSW 2052, Australia
| | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Stuart J Khan
- School of Civil and Environmental Engineering, University of New South Wales, NSW 2052, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Hao H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
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59
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Hou D, Lu L, Ren ZJ. Microbial fuel cells and osmotic membrane bioreactors have mutual benefits for wastewater treatment and energy production. WATER RESEARCH 2016; 98:183-189. [PMID: 27105032 DOI: 10.1016/j.watres.2016.04.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/02/2016] [Accepted: 04/10/2016] [Indexed: 06/05/2023]
Abstract
This study demonstrates that microbial fuel cells (MFCs) and osmotic membrane bioreactors (OMBRs) can be mutually beneficial when integrated together for wastewater treatment. When connecting MFCs with OMBRs, the solute buildup increased conductivity and buffer capacity, which greatly increased MFC power density from 3 W/m(3) up to 11.5 W/m(3). In turn, the MFCs conditioned and reduced sludge production and therefore reduced forward osmosis (FO) membrane fouling. The MFC-OMBR equipped with new thin-film composite (TFC) membrane showed excellent organic (>95%) and phosphorus removal (>99%) and therefore maintained effluent sCOD below 20 mg/L. However, the nitrogen removal was limited due to the negative surface charge of the thin-film composite membrane and solution chemistry, which led to higher flux of ammonium toward the OMBR draw solution. Further studies are needed to improve nitrogen removal, reduce fouling, and optimize system integration.
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Affiliation(s)
- Dianxun Hou
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA
| | - Lu Lu
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA
| | - Zhiyong Jason Ren
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA.
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60
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Wang X, Chang VW, Tang CY. Osmotic membrane bioreactor (OMBR) technology for wastewater treatment and reclamation: Advances, challenges, and prospects for the future. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.01.010] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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61
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Wang S, Liu W, Zheng J, Xu X. Immobilization of horseradish peroxidase on modified PAN-based membranes for the removal of phenol from buffer solutions. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shuai Wang
- College of Chemistry; Fuzhou University; Fuzhou 350108 China
| | - Wei Liu
- College of Chemistry; Fuzhou University; Fuzhou 350108 China
| | - Jinwang Zheng
- Shanghai Tofflon Science and Technology Co., Ltd.; Shanghai 200000 China
| | - Xiaoping Xu
- College of Chemistry; Fuzhou University; Fuzhou 350108 China
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62
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She Q, Wang R, Fane AG, Tang CY. Membrane fouling in osmotically driven membrane processes: A review. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.10.040] [Citation(s) in RCA: 525] [Impact Index Per Article: 65.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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63
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Towards improved separation performance using porous FO membranes: The critical roles of membrane separation properties and draw solution. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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