| Publication Type |
Journal Article |
| Title |
Impacts of silver nanoparticles on performance and microbial community and enzymatic activity of a sequencing batch reactor |
| Authors |
Qiaoyan Xu Shanshan Li Yiping Wan Sen Wang Bingrui Ma Zonglian She Liang Guo Mengchun Gao Yangguo Zhao Chunji Jin Junwei Dong Zhiwei Li Katrina Bell Luis Williams Sarah Conrad |
| Groups |
G3 G2 |
| Journal |
JOURNAL OF ENVIRONMENTAL MANAGEMENT |
| Year |
2017 |
| Month |
December |
| Volume |
204 |
| Number |
1 |
| Pages |
667-673 |
| Abstract |
The performance, microbial community and enzymatic activity of a sequencing batch reactor (SBR) were evaluated under silver nanoparticles (Ag NPs) stress. Over 5 mg/L Ag NPs inhibited the COD and phosphorus removals, whereas the NH4+ removal kept stable during the whole operational period. The organic matter, nitrogen and phosphorus removal rates were obviously inhibited under Ag NPs stress, which showed similar varying trends with the corresponding microbial enzymatic activities. The change of Ag content in the activated sludge indicated that some Ag NPs were absorbed by the sludge. The presence of Ag NPs promoted the increase of reactive oxygen species (ROS) and lactate dehydrogenase (LDH) of microorganism due to the microbial response to the Ag NPs toxicity, which could impact on the microbial morphology and physiological functions. The presence of Ag NPs could produce some evident changes in the microbial community. (C) 2017 Elsevier Ltd. All rights reserved. |
| DOI |
http://dx.doi.org/10.1016/j.jenvman.2017.09.050 |
| ISBN |
|
| Publisher |
|
| Book Title |
|
| ISSN |
0301-4797 |
| EISSN |
1095-8630 |
| Conference Name |
|
| Bibtex ID |
ISI:000413878300068 |
| Observations |
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