废水
化学
磺胺甲恶唑
食品科学
适应
胞外聚合物
营养物
生物量(生态学)
微生物学
细菌
制浆造纸工业
生物
抗生素
生物化学
植物
生物膜
生态学
环境工程
环境科学
遗传学
有机化学
工程类
作者
Guosheng Hu,Siqi Fan,Hongyu Wang,Bin Ji
标识
DOI:10.1016/j.biortech.2022.128090
摘要
The presence of widely used sulfamethoxazole (SMX) in wastewater poses a threat to aquatic organisms and humans. Here, the responses of the emerging microalgal-bacterial granular sludge (MBGS) process in treating SMX-containing wastewater were investigated. The results indicated that 1, 5 and 10 mg/L SMX had little effect on the removals of organics and nutrients after an acclimation period of three to five days. SMX reduced intracellular glycogen content of MBGS, while the production of chlorophyll and extracellular polymeric substances tended to be promoted. Furthermore, the potential mechanisms on how MBGS adapted to SMX were deciphered to be the alterations of microbial community structure and function of MBGS. SMX might be degraded intracellularly into a carbon source for microbial metabolism and the SMX degraders were suspected to be Scenedesmaceae, Rhodocyclaceae and Burkholderiaceae. This study suggests that the MBGS process can handle SMX-containing wastewater, advancing knowledge on MBGS for antibiotics degradation.
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