MBR Pretreatment of Landfill Leachate for the Removal of Ammonia and Potential Future Removal of Total Dissolved Solids

Wilkinson, Clifford S.; Patoczka, Jurek; Williams, James; Grau, Thomas

doi:10.2175/193864710798182123

Cited by 3 publications

(2 citation statements)

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“…Ammonia‐nitrogen is inorganic pollutants that are treated using biological treatment with nitrifying AS 26 . The initial ammonia concentration fluctuated between 10 and 15 mg/L, with an average concentration of 13 mg/L.…”

Section: Resultsmentioning

confidence: 99%

Effect of pore size of monofilament woven filter cloth as supporting material for dynamic membrane filtration on performance using aerobic membrane bioreactor technology

Mahat

Omar

Lee

et al. 2020

Asia-Pacific J Chem Eng

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Dynamic membranes (DMs) defined as cake layer forms on a support material such as filter cloth have been of great interest in recent years. The usage of DMs can reduce the capital cost significantly and energy consumption during wastewater treatment by replacing the conventional membrane. The formation of an active dynamic cake layer is highly related to the retention of particles on the support material surface. In this study, different pore sizes of monofilament woven filter cloth made of polypropylene (PP; 20, 40, and 60 μm) were installed as a flat sheet in a DM bioreactor (DMBR) to treat high strength food wastewater [>1,000 mg/L chemical oxygen demand (COD)]. The wastewater treatment performances, namely COD, turbidity, total solid separation, and total ammonia nitrogen removal efficiencies, were assessed daily. The system achieved average COD removals higher than 80% and 70% for smaller pore size and larger pore size, respectively. Based on the results (duration of 4 days), the 20 μm pore size monofilament filter cloth was found most suitable for the cake layer development. The results also demonstrate that the biofilm composed of the cake layer of the DM on smaller pore size significantly concurs with the high treatment efficiency compared with the larger pore size. K E Y W O R D Saerobic digestion, dynamic membrane, high strength food wastewater, woven filter cloth

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Section: Resultsmentioning

confidence: 99%

Effect of pore size of monofilament woven filter cloth as supporting material for dynamic membrane filtration on performance using aerobic membrane bioreactor technology

Mahat

Omar

Lee

et al. 2020

Asia-Pacific J Chem Eng

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“…The main treatment objective was to significantly reduce ammonia loads to the receiving POTW, in a manner compatible with potential future need to reduce Total Dissolved Solids (TDS). In a previous paper (Wilkinson, 2010), information on project development, conceptual design, and facility start-up were provided. This paper provides details of the plant's initial operations, with particular emphasis on denitrification performance, heat mass balance, and color removal.…”

Section: Introductionmentioning

confidence: 99%

Start-up and Operation of a Leachate MBR Plant

Patoczka¹,

Williams²

2011

proc water environ fed

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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 1,890 m 3 /d (0.5 mgd) regional Publicly Owned Treatment Plant (POTW). Significant increases in leachate flow volumes and ammonia loads required the PCFAWC to evaluate alternative leachate disposal options. Pretreatment of the leachate in a Membrane Bioreactor process (MBR) was ultimately selected after the evaluation of alternatives and the completion of pilot tests. The MBR plant has been successfully operating for two years, meeting its design requirements. Initial problems with the MBR reactor foaming and elevated effluent color were overcome. The plant achieves full nitrification and significant denitrification while requiring minimal cleaning of the ultrafiltration (UF) membranes. Elevated process temperatures experienced are demonstrated to be a result of the high energy mechanical equipment (high pressure pumps) and heat of the biological reactions.

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Effect of prolonged sludge retention times on the performance of membrane bioreactor and microbial community for leachate treatment under restricted aeration

Ittisupornrat¹,

Phetrak

Theepharaksapan

et al. 2021

Chemosphere

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MBR Pretreatment of Landfill Leachate for the Removal of Ammonia and Potential Future Removal of Total Dissolved Solids

Cited by 3 publications

References 0 publications

Effect of pore size of monofilament woven filter cloth as supporting material for dynamic membrane filtration on performance using aerobic membrane bioreactor technology

Effect of pore size of monofilament woven filter cloth as supporting material for dynamic membrane filtration on performance using aerobic membrane bioreactor technology

Start-up and Operation of a Leachate MBR Plant

Effect of prolonged sludge retention times on the performance of membrane bioreactor and microbial community for leachate treatment under restricted aeration

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