Long-term impacts of titanium dioxide nanoparticles (TiO2 NPs) on performance and microbial community of activated sludgeLi Zhiwei; Wang Xuejiao; Ma Bingrui; Wang Sen; Zheng Dong; She Zonglian; Guo Liang; Zhao Yangguo; Xu Qiaoyan; Jin Chunji; Li Shanshan; Gao MengchunScience Citation Index Expanded-摘要-关键词-