TY - JOUR
T1 - Impact of anaerobic dynamic membrane bioreactor configuration on treatment and filterability performance
AU - Ersahin, Mustafa Evren
AU - Tao, Yu
AU - Ozgun, Hale
AU - Gimenez Garcia, J.B.
AU - Spanjers, Henri
AU - van Lier, Jules B.
PY - 2017
Y1 - 2017
N2 - Submerged and external anaerobic dynamic membrane bioreactors (AnDMBRs) have been compared in terms of removal efficiency, filtration characteristics and microbial community structure. High COD removal efficiencies were obtained with both submerged and external AnDMBRs. To obtain an effective dynamic membrane (DM) layer enabling high quality permeate, longer time was required in the external AnDMBR configuration compared to the submerged one. A difference in microbial community structure was identified using pyrosequencing analyses between the submerged and external AnDMBRs. The number of archaeal types decreased in the bulk sludge of the external AnDMBR. External sludge recirculation might have had a negative effect on the archaeal community in the bulk sludge of the external AnDMBR. However, the sludge recirculation in the external AnDMBR configuration led to a filtration at lower total filtration resistance and TMP in comparison to the submerged one at the same gas sparging rate. Results showed that the submerged AnDMBR system can provide a shorter start-up period, slightly better permeate quality in terms of COD concentration, and higher biogas production in comparison to the external one in gas-lift mode.
AB - Submerged and external anaerobic dynamic membrane bioreactors (AnDMBRs) have been compared in terms of removal efficiency, filtration characteristics and microbial community structure. High COD removal efficiencies were obtained with both submerged and external AnDMBRs. To obtain an effective dynamic membrane (DM) layer enabling high quality permeate, longer time was required in the external AnDMBR configuration compared to the submerged one. A difference in microbial community structure was identified using pyrosequencing analyses between the submerged and external AnDMBRs. The number of archaeal types decreased in the bulk sludge of the external AnDMBR. External sludge recirculation might have had a negative effect on the archaeal community in the bulk sludge of the external AnDMBR. However, the sludge recirculation in the external AnDMBR configuration led to a filtration at lower total filtration resistance and TMP in comparison to the submerged one at the same gas sparging rate. Results showed that the submerged AnDMBR system can provide a shorter start-up period, slightly better permeate quality in terms of COD concentration, and higher biogas production in comparison to the external one in gas-lift mode.
KW - Cake filtration
KW - Dynamic membrane
KW - External AnMBR
KW - Microbial community
KW - Submerged AnMBR
UR - http://www.scopus.com/inward/record.url?scp=85008950108&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2016.12.057
DO - 10.1016/j.memsci.2016.12.057
M3 - Article
SN - 0376-7388
VL - 526
SP - 387
EP - 394
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -