RT Journal T1 Insights from metagenomic, metatranscriptomic, and molecular ecological network analyses into the effects of chromium nanoparticles on activated sludge system A1 Quan Zheng, Minglu Zhang, Tingting Zhang, Xinhui Li, Minghan Zhu, Xiaohui Wang PB Front. Environ. Sci. Eng. FD 2020-08-15 YR 2020 JF Frontiers of Environmental Science & Engineering JO Front. Environ. Sci. Eng. VO 14 IS 4 SP 60 DO 10.1007/s11783-020-1239-8 K1 Chromium nanoparticles (Cr NPs);Metagenomic analysis;Metatranscriptomic analysis;Molecular ecological networks (MENs);Nitrogen and phosphorus removal LK {https://journal.hep.com.cn/fese/EN/article/article_27194.shtml}