Special Issue "Nanomaterials for Water Treatment"
A special issue of Nanomaterials (ISSN 2079-4991).
Deadline for manuscript submissions: closed (31 May 2017)
Prof. Dr. Dror Avisar
Hydrochemistry, Head of the Water Research Center, Earth Sciences, Tel Aviv University, Israel
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Interests: (a) Identifying the fate and transport mechanisms of various persistent pollutants and degradation by-products in domestic and hospital wastewater, effluents and biosolids; industrial fish ponds, effluent irrigated fields, river streams and groundwater; (b) Technology development for water treatment and purification via various combinations of Advanced Oxidation Processes (AOPs) for removal of persistent pollutants such as pharmaceutical compounds from wastewater effluent/wastewater
Many engineered nanoparticle (ENP) products that rely on the chemical and physical properties are examined at the production and synthesis stage, and are well characterized, both in terms of size, shape, aggregation behaviour, as well as in terms of their interactions and the possible health effects on workers during all steps of production and of consumers during delivery. Given that ENPs are used in many industries—from medicine, through food and crop production and up to environmental and water technologies—it is of little surprise that many ENPs find their way “post-use” to the environment with possible eco-toxicological and health effects. In the recent years much attention has been given to eco-toxicological effects of ENPs in the aquatic environment. These studies are complicated by the multiple interactions ENP can undergo in the aqueous media—changes in redox chemistry, chemisorption and desorption of toxic organics or toxic metals, biodegradation, bioaccumulation, aggregation and disaggregation, deposition and resuspension, as well as dissolution and re-precipitation of phases in aquatic environments. NPs released to the aquatic environment and left untreated in water treatment plants may contaminate drinking water sources used for human consumption. An important issue is the fate of ENP in wastewater treatment plants (WWTP). The behaviour on ENPs in wastewater and effluent is complicated (especially compared to freshwater) by the high content of organic matter and surfactants in wastewater, materials that could affect the ENPs in many, unpredictable, ways. Therefore, the fate of ENPs after they enter the water cycle and the effect of wastewater treatment on these ENPs should be evaluated.
Prof. Dr. Dror Avisar
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- engineered nanoparticles
- drinking water
- natural organic matter