Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate
Direct contact membrane distillation (DCMD) was applied to the treatment of raw and membrane bioreactor (MBR)-treated municipal landfill leachate. The experiments were conducted using feed side temperatures of 50, 60, and 70oC while permeate side temperature was controlled at 10oC. The effects of or...
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2024-12-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266601642400207X |
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| author | Samunya Sanguanpak Pawinee Milintawisamai Wilai Chiemchaisri Chart Chiemchaisri |
| author_facet | Samunya Sanguanpak Pawinee Milintawisamai Wilai Chiemchaisri Chart Chiemchaisri |
| author_sort | Samunya Sanguanpak |
| collection | DOAJ |
| description | Direct contact membrane distillation (DCMD) was applied to the treatment of raw and membrane bioreactor (MBR)-treated municipal landfill leachate. The experiments were conducted using feed side temperatures of 50, 60, and 70oC while permeate side temperature was controlled at 10oC. The effects of organic matter, solid particles, and salinity presented in raw leachate and MBR permeate on the DCMD flux and pollutant rejection efficiencies were investigated. Moreover, fouling and wetting of the MD membrane were examined. The experimental results revealed that the application of DCMD to MBR permeate yielded higher fluxes than those of raw leachate but its higher flux decline was also observed due to the formation of denser foulant layer on the MD membrane surface. High organic carbon and salt rejection efficiencies (>90 %) were achieved and maintained in DCMD treating MBR permeate. Significant deterioration of organic rejection efficiencies was observed in DCMD treating raw leachate at higher feed temperature (70oC) and increasing pollutant concentrations during closed-loop operation. Partial volatilization of volatile fatty acids from the feed side and their penetration through MD was also observed, being more severe at higher feed temperatures. The best condition for the operation of the system was found at 50oC using MBR permeate as feed water at which pollutant rejection efficiencies were highest while membrane wetting and fouling were also minimized. |
| format | Article |
| id | doaj-art-896ddd080b9849aeb8ffe4c366f34049 |
| institution | Kabale University |
| issn | 2666-0164 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj-art-896ddd080b9849aeb8ffe4c366f340492024-12-02T05:05:38ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642024-12-0110100813Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachateSamunya Sanguanpak0Pawinee Milintawisamai1Wilai Chiemchaisri2Chart Chiemchaisri3National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathumthani, 12120, ThailandDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, ThailandDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, ThailandDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Corresponding author. Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok, 10900, Thailand.Direct contact membrane distillation (DCMD) was applied to the treatment of raw and membrane bioreactor (MBR)-treated municipal landfill leachate. The experiments were conducted using feed side temperatures of 50, 60, and 70oC while permeate side temperature was controlled at 10oC. The effects of organic matter, solid particles, and salinity presented in raw leachate and MBR permeate on the DCMD flux and pollutant rejection efficiencies were investigated. Moreover, fouling and wetting of the MD membrane were examined. The experimental results revealed that the application of DCMD to MBR permeate yielded higher fluxes than those of raw leachate but its higher flux decline was also observed due to the formation of denser foulant layer on the MD membrane surface. High organic carbon and salt rejection efficiencies (>90 %) were achieved and maintained in DCMD treating MBR permeate. Significant deterioration of organic rejection efficiencies was observed in DCMD treating raw leachate at higher feed temperature (70oC) and increasing pollutant concentrations during closed-loop operation. Partial volatilization of volatile fatty acids from the feed side and their penetration through MD was also observed, being more severe at higher feed temperatures. The best condition for the operation of the system was found at 50oC using MBR permeate as feed water at which pollutant rejection efficiencies were highest while membrane wetting and fouling were also minimized.http://www.sciencedirect.com/science/article/pii/S266601642400207XDirect filtrationLeachateMembrane distillationMBR pretreatmentOrganic fouling |
| spellingShingle | Samunya Sanguanpak Pawinee Milintawisamai Wilai Chiemchaisri Chart Chiemchaisri Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate Case Studies in Chemical and Environmental Engineering Direct filtration Leachate Membrane distillation MBR pretreatment Organic fouling |
| title | Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate |
| title_full | Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate |
| title_fullStr | Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate |
| title_full_unstemmed | Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate |
| title_short | Performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor-treated landfill leachate |
| title_sort | performance and fouling characteristics of direct contact membrane distillation applied to raw and membrane bioreactor treated landfill leachate |
| topic | Direct filtration Leachate Membrane distillation MBR pretreatment Organic fouling |
| url | http://www.sciencedirect.com/science/article/pii/S266601642400207X |
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