The DOI matches its Crossref record; 109 of the 109 references it cites were found in a registry or an index.
Impact of metallic and metal oxide nanoparticles on wastewater treatment and anaerobic digestion
Abstract
Metallic and metal oxide nanomaterials have been increasingly used in consumer products (e.g. sunscreen, socks), the medical and electronic industries, and environmental remediation. Many of them ultimately enter wastewater treatment plants (WWTPs) or landfills. This review paper discusses the fate and potential effects of four types of nanoparticles, namely, silver nanoparticles (AgNPs), nano ZnO, nano TiO2, and nano zero valent iron (NZVI), on waste/wastewater treatment and anaerobic digestion. The stabilities and chemical properties of these nanoparticles (NPs) result in significant differences in antimicrobial activities. Analysis of published data of metallic and metal oxide NPs suggests that oxygen is often a prerequisite for the generation of reactive oxygen species (ROS) for AgNPs and NZVI, while illumination is necessary for ROS generation for nano TiO2 and nano ZnO. Furthermore, such nanoparticles are capable of being oxidized or dissolved in water and can release metal ions, leading to metal toxicity. Therefore, AgNPs and nano TiO2 are chemically stable NPs that have no adverse effects on microbes under anaerobic conditions. Although the toxicity of nanomaterials has been studied intensively under aerobic conditions, more research is needed to address their fate in anaerobic waste/wastewater treatment systems and their long-term effects on the environment.
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Metadata
- Authors
- Yang, Y., Zhang, C., & Hu, Z.
- Venue
- Environ. Sci.: Processes Impacts
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 15
- Issue
- 1
- Pages
- 39-48
- ISSN
- 2050-7887 (ISSN-L)
- 2050-7895
- OpenAlex
- W2137818419
- Cited by
- 299
- References
- 109
- FWCI
- 5.21
- Type
- journal article
- Language
- en
- Open access
- closed
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