微生物种群生物学
磷
序批式反应器
化学
氮气
环境化学
期限(时间)
微生物
细菌
污水处理
环境工程
环境科学
生物
有机化学
物理
量子力学
遗传学
作者
Sen Wang,Mengchun Gao,Zhigang She,Dan Zheng,Jin Chen,Yangguo Zhao,Zhiwei Li,Xuejiao Wang
标识
DOI:10.1016/j.biortech.2016.05.099
摘要
The performance, microbial activity, and microbial community of a sequencing batch reactor (SBR) were investigated under the long-term exposure of ZnO nanoparticles (ZnO NPs). Low ZnO NPs concentration (less than 5 mg/L) had no obvious effect on the SBR performance, whereas the removals of COD, NH4+-N, and phosphorus were affected at 10–60 mg/L ZnO NPs. The variation trend of nitrogen and phosphorus removal rate was similar to that of microbial enzymatic activity with the increase of ZnO NPs concentrations. The richness and diversity of microbial community showed obvious variations at different ZnO NPs concentrations. ZnO NPs appeared on the surface and cell interior of activated sludge, and the Zn contents in the effluent and activated sludge increased with the increase of ZnO NPS concentration. The present results provide use information to understand the effect of ZnO NPS on the performance of wastewater biological treatment systems.
科研通智能强力驱动
Strongly Powered by AbleSci AI