Sustainable organic loading rate and energy recovery potential of mesophilic anaerobic membrane bioreactor for municipal wastewater treatment
Type
ArticleKAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionEnvironmental Microbial Safety and Biotechnology Lab
Environmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Date
2014-08Permanent link to this record
http://hdl.handle.net/10754/563672
Metadata
Show full item recordAbstract
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.2014.05.053Sponsors
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 BVJournal
Bioresource TechnologyPubMed ID
24926606ae974a485f413a2113503eed53cd6c53
10.1016/j.biortech.2014.05.053
Scopus Count
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