MBR Pretreatment of Landfill Leachate for the Removal of Ammonia and Potential Future Removal of Total Dissolved Solids
Abstract:The Pollution Control Financing Authority of Warren County (PCFAWC or Authority) New Jersey operates a solid waste landfill. Leachate collected in the landfill cell underdrain system drains to a lined basin, from which it had historically been pumped via an adjoining wastewater collection system to a 0.5 MGD regional Publicly Owned Treatment Plant (POTW). Significant increases in leachate flow volumes and ammonia loads resulted in the suspension of pumping to the POTW, requiring the PCFAWC to evaluate alternative leachate disposal options. Bench scale treatability analyses followed by a process evaluations, which considered potential future regulatory requirements, resulted in the selection of on-site leachate pretreatment using the membrane bioreactor process (MBR). The MBR plant has been successfully operating for several months, meeting its design requirements. Full nitrification and significant denitrification is being achieved while requiring minimal cleaning of the ultrafiltration membranes.
Document Type: Research Article
Publication date: 2010-01-01
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