Transport, fate, and long-term impacts of metal oxide nanoparticles on the stability of an anaerobic methanogenic system with anaerobic granular sludge

被引：28

作者：

Li, Huiting ^{[1
]}

Cui, Fuyi ^{[1
]}

Liu, Zhiquan ^{[1
]}

Li, Dapeng ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 234卷

基金：

中国国家自然科学基金;

关键词：

Metal oxide nanoparticles; Anaerobic granular sludge; Methanogenesis; Long-term impacts; ASBR; EXTRACELLULAR POLYMERIC SUBSTANCES; WASTE-WATER TREATMENT; CUO NANOPARTICLES; ZNO NANOPARTICLES; DAPHNIA-MAGNA; TOXICITY; KINETICS; TIO2; NANOMATERIALS; NANO-TIO2;

D O I：

10.1016/j.biortech.2017.03.027

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The fate and long-term effect of different metal oxide (TiO2, CuO and ZnO) nanoparticles (NPs) on anaerobic granular sludge (AGS) was evaluated in an anaerobic methanogenic system. Operation stability and structural characteristics of the granules were compared, the metabolism changes in the microbial community were quantified, and NPs fate were investigated. CuO NPs had greatest toxic effect on AGS after extended exposure, whereas ZnO NPs benefited methanogenesis temporarily (no more than 5 d). The inhibition on AGS caused by NPs varied due to the unique structure of AGS and different toxic mechanism. Structural changes of AGS provided new evidence that tested NPs have different toxicity. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：448 / 455

页数：8

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