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    Sustainable organic loading rate and energy recovery potential of mesophilic anaerobic membrane bioreactor for municipal wastewater treatment

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    Type
    Article
    Authors
    Wei, Chunhai
    Harb, Moustapha cc
    Amy, Gary L.
    Hong, Pei-Ying cc
    Leiknes, TorOve cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Microbial Safety and Biotechnology Lab
    Environmental Science and Engineering Program
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2014-08
    Permanent link to this record
    http://hdl.handle.net/10754/563672
    
    Metadata
    Show full item record
    Abstract
    The overall performance of a mesophilic anaerobic membrane bioreactor (AnMBR) for synthetic municipal wastewater treatment was investigated under a range of organic loading rate (OLR). A very steady and high chemical oxygen demand (COD) removal (around 98%) was achieved over a broad range of volumetric OLR of 0.8-10gCOD/L/d. The sustainable volumetric and sludge OLR satisfying a permeate COD below 50mg/L for general reuse was 6gCOD/L/d and 0.63gCOD/gMLVSS (mixed liquor volatile suspended solids)/d, respectively. At a high sludge OLR of over 0.6gCOD/gMLVSS/d, the AnMBR achieved high methane production of over 300ml/gCOD (even approaching the theoretical value of 382ml/gCOD). A low biomass production of 0.015-0.026gMLVSS/gCOD and a sustainable flux of 6L/m2/h were observed. The integration of a heat pump and forward osmosis into the mesophilic AnMBR process would be a promising way for net energy recovery from typical municipal wastewater in a temperate area. © 2014 Elsevier Ltd.
    Citation
    Wei, C.-H., Harb, M., Amy, G., Hong, P.-Y., & Leiknes, T. (2014). Sustainable organic loading rate and energy recovery potential of mesophilic anaerobic membrane bioreactor for municipal wastewater treatment. Bioresource Technology, 166, 326–334. doi:10.1016/j.biortech.2014.05.053
    Sponsors
    This work has been financed by the KAUST-UIUC Academic Excellence Alliance (AEA) Project entitled Anaerobic Membrane Bioreactor (AnMBR) with Nanofiltration (NF) Membrane. Microbial community analysis was funded by KAUST-UIUC AEA Project 7000000105 awarded to Peiying Hong and Gary Amy. Nan Wang and Dr. Tony Merle are appreciated for their assistance in reactor maintenance and membrane module fabrication, respectively.
    Publisher
    Elsevier BV
    Journal
    Bioresource Technology
    DOI
    10.1016/j.biortech.2014.05.053
    PubMed ID
    24926606
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.biortech.2014.05.053
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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