期刊
BIORESOURCE TECHNOLOGY
卷 236, 期 -, 页码 1-10出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.03.189
关键词
Integrated anaerobic fluidized-bed membrane bioreactor; Benzothiazole; Anaerobic process; Biodegradation kinetics; Microbial community structure
资金
- Natural Science Foundation of Heilongjiang Province, China [ZD201412]
- Major Science and Technology Program for Water Pollution Control and Management [2013ZX07201007-001]
This study investigated the impact of benzothiazole on the performance and microbial community structures in an integrated anaerobic fluidized-bed membrane bioreactor fed with synthetic benzothiazole wastewater (with gradually increasing doses of benzothiazole (1-50 mg/L)). The addition of benzothiazole had an adverse effect on volatile fatty acids accumulation (from 10.86 mg/L to 57.83 mg/L), and membrane fouling (service period from 5.9 d to 5.3 d). The removal efficiency of benzothiazole was 96.0%. Biodegradation was the major benzothiazole removal route and the biodegradation efficiency obviously improved from 25.7% to 98.3% after adaptation. Sludge 1 (collected on day 58 without benzothiazole) and sludge 2 (collected on day 185 with 50 mg/L benzothiazole) were analyzed using the Illumina (R) MiSeq platform. The most abundant genera were Trichococcus (43.1% in sludge 1) and Clostridium sensu stricto (23.9% in sludge 2). The dominant genus of archaea was Methanosaeta (90.3% in sludge 1 and 80.8% in sludge 2). (C) 2017 Elsevier Ltd. All rights reserved.
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