TY - JOUR
T1 - Impact of simultaneous retention of micropollutants and laccase on micropollutant degradation in enzymatic membrane bioreactor
AU - Asif, Muhammad B.
AU - Hai, Faisal I.
AU - Dhar, Bipro R.
AU - Ngo, Huu H.
AU - Guo, Wenshan
AU - Jegatheesan, Veeriah
AU - Price, William E.
AU - Nghiem, Long D.
AU - Yamamoto, Kazuo
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-23
PY - 2018/11/1
Y1 - 2018/11/1
N2 - This study systematically compares the performance of ultrafiltration (UF) and nanofiltration (NF) based enzymatic membrane bioreactors (EMBRs) for the degradation of five micropollutants, namely atrazine, carbamazepine, sulfamethoxazole, diclofenac and oxybenzone to elucidate the impact of effective membrane retention of micropollutants on their degradation. Based on the permeate quality, NF-EMBR achieved 92–99.9% micropollutant removal (i.e., biodegradation + membrane retention), while the removal of these micropollutants by UF-EMBR varied from 20 to 85%. Mass balance analysis revealed that micropollutant degradation was improved by 15–30% in NF-EMBR as compared to UF-EMBR, which could be attributed to the prolonged contact time between laccase and micropollutants following their effective retention by the NF membrane. A small decline in permeate flux was observed during EMBR operation. However, the flux could be recovered by flushing the membrane with permeate.
AB - This study systematically compares the performance of ultrafiltration (UF) and nanofiltration (NF) based enzymatic membrane bioreactors (EMBRs) for the degradation of five micropollutants, namely atrazine, carbamazepine, sulfamethoxazole, diclofenac and oxybenzone to elucidate the impact of effective membrane retention of micropollutants on their degradation. Based on the permeate quality, NF-EMBR achieved 92–99.9% micropollutant removal (i.e., biodegradation + membrane retention), while the removal of these micropollutants by UF-EMBR varied from 20 to 85%. Mass balance analysis revealed that micropollutant degradation was improved by 15–30% in NF-EMBR as compared to UF-EMBR, which could be attributed to the prolonged contact time between laccase and micropollutants following their effective retention by the NF membrane. A small decline in permeate flux was observed during EMBR operation. However, the flux could be recovered by flushing the membrane with permeate.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0960852418309635
UR - http://www.scopus.com/inward/record.url?scp=85050091780&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.07.066
DO - 10.1016/j.biortech.2018.07.066
M3 - Article
SN - 1873-2976
VL - 267
SP - 473
EP - 480
JO - Bioresource technology
JF - Bioresource technology
ER -