Towards a Definition of Harmless Nanoparticles from an Environmental and Safety Perspective
Joint Authors
Wang, Mei-zhen
Cui, Xueyan
Yin, Jun
Lin, Ying
Li, Na
Shen, Dong-Sheng
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-12
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The rapid development of nanoparticles (NPs), such as silicon nanoparticles (Si NPs) and ferric oxide nanoparticles (Fe2O3 NPs), and their use in myriad commercial applications have raised questions of their potential impacts on wastewater treatment systems.
In this study, we investigated the consequences of the presence of Si NPs and Fe2O3 NPs in the denitrification of anoxic sludge.
Fe2O3 NPs, at a concentration up to 50 mg/L, had no significant impact on nitrate removal, whereas Si NPs, at concentrations up to 50 mg/L, increased the rate of nitrate removal.
We used transmission electron microscopy (TEM) to investigate the effect of Si NPs and Fe2O3 NPs.
Si NPs exposure enhanced the abundance of narG-1 gene, which might promote nitrate removal process directly.
Finally, we reviewed and identified the specific properties of a variety of NPs responsible for toxicity and found NPs larger than about 100 nm and without ion release in general possible to energy safety and nontoxic or low toxic to environment.
Our results provide useful information to understand the response of anoxic sludge to Si NPs and Fe2O3 NPs in complex environmental matrix as well as potent support for wide use of the environmentally friendly NPs.
American Psychological Association (APA)
Cui, Xueyan& Yin, Jun& Lin, Ying& Li, Na& Wang, Mei-zhen& Shen, Dong-Sheng. 2016. Towards a Definition of Harmless Nanoparticles from an Environmental and Safety Perspective. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1107788
Modern Language Association (MLA)
Cui, Xueyan…[et al.]. Towards a Definition of Harmless Nanoparticles from an Environmental and Safety Perspective. Journal of Chemistry No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1107788
American Medical Association (AMA)
Cui, Xueyan& Yin, Jun& Lin, Ying& Li, Na& Wang, Mei-zhen& Shen, Dong-Sheng. Towards a Definition of Harmless Nanoparticles from an Environmental and Safety Perspective. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1107788
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107788