TY - JOUR
T1 - Sustainable organic loading rate and energy recovery potential of mesophilic anaerobic membrane bioreactor for municipal wastewater treatment
AU - Wei, Chunhai
AU - Harb, Moustapha
AU - Amy, Gary L.
AU - Hong, Pei-Ying
AU - Leiknes, TorOve
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.
PY - 2014/8
Y1 - 2014/8
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/563672
UR - https://linkinghub.elsevier.com/retrieve/pii/S0960852414007123
UR - http://www.scopus.com/inward/record.url?scp=84902207497&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2014.05.053
DO - 10.1016/j.biortech.2014.05.053
M3 - Article
C2 - 24926606
SN - 0960-8524
VL - 166
SP - 326
EP - 334
JO - Bioresource Technology
JF - Bioresource Technology
ER -