Chronic responses of aerobic granules to zinc oxide nanoparticles in a sequencing batch reactor performing simultaneous nitrification, denitrification and phosphorus removal
作者： Qiulai He , Shuxian Gao , Shilu Zhang , Wei Zhang , Hongyu Wang
DOI: 10.1016/J.BIORTECH.2017.04.010
关键词:
摘要: The reactor performance, granules characteristics and microbial population dynamics were investigated to assess the chronic responses of aerobic zinc oxide nanoparticles (ZnO NPs) 0, 5, 10 20mg/L for a period 180days. results showed that ZnO NPs stimulated COD removal, whereas caused inhibition both nitrification denitrification. However, biological phosphorus removal remained effective stable. Introduction sharply decreased respiration granules, while did not change settleability. Both content extracellular polymeric substances (EPS) ratio protein polysaccharides (PN/PS) rose significantly. MiSeq pyrosequencing was employed explore dynamics. Results demonstrated up reduced alpha-diversity bacterial communities. Finally, phylogenetic classification dominant functional species involved in nutrients identified effects from molecular level.
cheric.org
cabdirect.org参考文章(32)
Hongyu Wang, Qiulai He, Dan Chen, Li Wei, Zhuocheng Zou, Jun Zhou, Kai Yang, Huining Zhang, Microbial community in a hydrogenotrophic denitrification reactor based on pyrosequencing. Applied Microbiology and Biotechnology. ,vol. 99, pp. 10829- 10837 ,(2015) , 10.1007/S00253-015-6929-Y
Andrew Eaton, A.E. Greenberg, Lenore S. Clesceri, Standard methods for the examination of water and wastewater Published in <b>1998</b> in Washington DC) by American public health association. ,(1992)
Naohiro Kishida, Juhyun Kim, Satoshi Tsuneda, Ryuichi Sudo, Anaerobic/oxic/anoxic granular sludge process as an effective nutrient removal process utilizing denitrifying polyphosphate-accumulating organisms. Water Research. ,vol. 40, pp. 2303- 2310 ,(2006) , 10.1016/J.WATRES.2006.04.037
Bei Long, Chang-zhu Yang, Wen-hong Pu, Jia-kuan Yang, Guo-sheng Jiang, Jing-feng Dan, Chun-yang Li, Fu-biao Liu, Rapid cultivation of aerobic granular sludge in a pilot scale sequencing batch reactor Bioresource Technology. ,vol. 166, pp. 57- 63 ,(2014) , 10.1016/J.BIORTECH.2014.05.039
Hui Mu, Yinguang Chen, Long-term effect of ZnO nanoparticles on waste activated sludge anaerobic digestion Water Research. ,vol. 45, pp. 5612- 5620 ,(2011) , 10.1016/J.WATRES.2011.08.022
Linlin Hou, Jing Xia, Kaiyang Li, Jian Chen, Xiaolei Wu, Xiqing Li, Removal of ZnO nanoparticles in simulated wastewater treatment processes and its effects on COD and NH4+-N reduction Water Science and Technology. ,vol. 67, pp. 254- 260 ,(2012) , 10.2166/WST.2012.530
Hui Mu, Xiong Zheng, Yinguang Chen, Hong Chen, Kun Liu, Response of Anaerobic Granular Sludge to a Shock Load of Zinc Oxide Nanoparticles during Biological Wastewater Treatment Environmental Science & Technology. ,vol. 46, pp. 5997- 6003 ,(2012) , 10.1021/ES300616A
Xiangchun Quan, Yan Cen, Fang Lu, Lingyun Gu, Jingyun Ma, Response of aerobic granular sludge to the long-term presence to nanosilver in sequencing batch reactors: reactor performance, sludge property, microbial activity and community. Science of The Total Environment. ,vol. 506, pp. 226- 233 ,(2015) , 10.1016/J.SCITOTENV.2014.11.015
Ya-Chun Yang, Xiang Liu, Chunli Wan, Supu Sun, Duu-Jong Lee, Accelerated aerobic granulation using alternating feed loadings: alginate-like exopolysaccharides. Bioresource Technology. ,vol. 171, pp. 360- 366 ,(2014) , 10.1016/J.BIORTECH.2014.08.092
A. Oehmen, C.M. Lopez-Vazquez, G. Carvalho, M.A.M. Reis, M.C.M. van Loosdrecht, Modelling the population dynamics and metabolic diversity of organisms relevant in anaerobic/anoxic/aerobic enhanced biological phosphorus removal processes Water Research. ,vol. 44, pp. 4473- 4486 ,(2010) , 10.1016/J.WATRES.2010.06.017