TY - JOUR
T1 - Anaerobic treatment of low-strength wastewater
T2 - A comparison between single and staged anaerobic fluidized bed membrane bioreactors
AU - Bae, Jaeho
AU - Shin, Chungheon
AU - Lee, Eunyoung
AU - Kim, Jeonghwan
AU - McCarty, Perry L.
N1 - Publisher Copyright:
© 2014 Elsevier Ltd.
PY - 2014
Y1 - 2014
N2 - Performance of a single anaerobic fluidized membrane bioreactor (AFMBR) was compared with that of a staged anaerobic fluidized membrane bioreactor system (SAF-MBR) that consisted of an anaerobic fluidized bed bioreactor (AFBR) followed by an AFMBR. Both systems were fed with an equal COD mixture (200. mg/L) of acetate and propionate at 25. °C. COD removals of 93-96% were obtained by both systems, independent of the hydraulic retention times (HRT) of 2-4. h. Over more than 200. d of continuous operation, trans-membrane pressure (TMP) in both systems was less than 0.2. bar without significant membrane fouling as a result of the scouring of membrane surfaces by the moving granular activated carbon particles. Results of bulk liquid suspended solids, extracellular polymeric substances (EPS), and soluble microbial products (SMP) analyses also revealed no significant differences between the two systems, indicating the single AFMBR is an effective alternative to the SAF-MBR system.
AB - Performance of a single anaerobic fluidized membrane bioreactor (AFMBR) was compared with that of a staged anaerobic fluidized membrane bioreactor system (SAF-MBR) that consisted of an anaerobic fluidized bed bioreactor (AFBR) followed by an AFMBR. Both systems were fed with an equal COD mixture (200. mg/L) of acetate and propionate at 25. °C. COD removals of 93-96% were obtained by both systems, independent of the hydraulic retention times (HRT) of 2-4. h. Over more than 200. d of continuous operation, trans-membrane pressure (TMP) in both systems was less than 0.2. bar without significant membrane fouling as a result of the scouring of membrane surfaces by the moving granular activated carbon particles. Results of bulk liquid suspended solids, extracellular polymeric substances (EPS), and soluble microbial products (SMP) analyses also revealed no significant differences between the two systems, indicating the single AFMBR is an effective alternative to the SAF-MBR system.
KW - Anaerobic
KW - Fluidized-bed
KW - Single-stage membrane bioreactor
KW - Staged membrane bioreactor
UR - http://www.scopus.com/inward/record.url?scp=84922535153&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2014.02.065
DO - 10.1016/j.biortech.2014.02.065
M3 - Article
C2 - 24630367
AN - SCOPUS:84922535153
SN - 0960-8524
VL - 165
SP - 75
EP - 80
JO - Bioresource Technology
JF - Bioresource Technology
IS - C
ER -
