硫酸盐
废水
生物反应器
化学
膜生物反应器
膜污染
反冲洗
污水处理
制浆造纸工业
反硝化
产甲烷
膜
环境化学
色谱法
环境工程
结垢
环境科学
甲烷
生物化学
氮气
入口
有机化学
工程类
机械工程
作者
Muhammad Ahmar Siddiqui,Basanta Kumar Biswal,Philippe M. Heynderickx,Jeonghwan Kim,Samir Kumar Khanal,Guanghao Chen,Di Wu
标识
DOI:10.1016/j.biortech.2021.126447
摘要
This study investigated organic removal performance, characteristics of the membrane dynamics, membrane fouling and the effects of biological sulfate reduction during high-salinity (1.0%) and high-sulfate (150 mgSO42--S/L) wastewater treatment using a laboratory-scale upflow anaerobic sludge bed reactor integrated with cross-flow dynamic membrane modules. Throughout the operational period, dynamic membrane was formed rapidly (within 5-10 min) following each backwashing cycle (21-16 days), and the permeate turbidity of < 5-7 NTU was achieved with relatively high specific organic conversion (70-100 gTOC/kgVSS·d) and specific sulfate reduction (50-70 gSO42--S/kgVSS·d) rates. The sulfide from sulfate reduction can be reused for downstream autotrophic denitrification. 16S rRNA gene amplicon sequencing revealed that the microbial communities enriched in the sludge were different than those accumulated on the dynamic layer. Overall, this study demonstrates that the anaerobic dynamic membrane bioreactor coupled with sulfate reduction (SrDMBR) shows promising applicability in saline wastewater treatment.
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