TY - JOUR
T1 - Performance of a novel baffled osmotic membrane bioreactor-microfiltration hybrid system under continuous operation for simultaneous nutrient removal and mitigation of brine discharge
AU - Pathak, Nirenkumar
AU - Chekli, Laura
AU - Wang, Jin
AU - Kim, Youngjin
AU - Phuntsho, Sherub
AU - Li, Sheng
AU - Ghaffour, NorEddine
AU - Leiknes, TorOve
AU - Shon, Hokyong
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research reported in this publication was supported by funding from the SEED program of King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The help, assistance and support of the Water Desalination and Reuse Center (WDRC) staff is greatly appreciated.
PY - 2017/3/14
Y1 - 2017/3/14
N2 - The present study investigated the performance of an integrated osmotic and microfiltration membrane bioreactor system for wastewater treatment employing baffles in the reactor. Thus, this reactor design enables both aerobic and anoxic processes in an attempt to reduce the process footprint and energy costs associated with continuous aeration. The process performance was evaluated in terms of water flux, salinity build up in the bioreactor, organic and nutrient removal and microbial activity using synthetic reverse osmosis (RO) brine as draw solution (DS). The incorporation of MF membrane was effective in maintaining a reasonable salinity level (612-1434 mg/L) in the reactor which resulted in a much lower flux decline (i.e. 11.48 to 6.98 LMH) as compared to previous studies. The stable operation of the osmotic membrane bioreactor–forward osmosis (OMBR-FO) process resulted in an effective removal of both organic matter (97.84%) and nutrient (phosphate 87.36% and total nitrogen 94.28%), respectively.
AB - The present study investigated the performance of an integrated osmotic and microfiltration membrane bioreactor system for wastewater treatment employing baffles in the reactor. Thus, this reactor design enables both aerobic and anoxic processes in an attempt to reduce the process footprint and energy costs associated with continuous aeration. The process performance was evaluated in terms of water flux, salinity build up in the bioreactor, organic and nutrient removal and microbial activity using synthetic reverse osmosis (RO) brine as draw solution (DS). The incorporation of MF membrane was effective in maintaining a reasonable salinity level (612-1434 mg/L) in the reactor which resulted in a much lower flux decline (i.e. 11.48 to 6.98 LMH) as compared to previous studies. The stable operation of the osmotic membrane bioreactor–forward osmosis (OMBR-FO) process resulted in an effective removal of both organic matter (97.84%) and nutrient (phosphate 87.36% and total nitrogen 94.28%), respectively.
UR - http://hdl.handle.net/10754/623043
UR - http://www.sciencedirect.com/science/article/pii/S0960852417303401
UR - http://www.scopus.com/inward/record.url?scp=85015832424&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2017.03.069
DO - 10.1016/j.biortech.2017.03.069
M3 - Article
C2 - 28342575
SN - 0960-8524
VL - 240
SP - 50
EP - 58
JO - Bioresource Technology
JF - Bioresource Technology
ER -