期刊
WATER
卷 13, 期 19, 页码 -出版社
MDPI
DOI: 10.3390/w13192659
关键词
water pollution; heavy metals; adsorption; adsorbents
资金
- UMS innovation grant [SGI0061-2018]
The article introduces several water treatment methods for removing heavy metals from water, with the adsorption process considered as an effective treatment. Functionalized adsorbents can enhance adsorption efficiency. The main purpose of the research is to gather the latest information on various adsorbents in treating heavy metals in water.
Natural occurrence and anthropogenic practices contribute to the release of pollutants, specifically heavy metals, in water over the years. Therefore, this leads to a demand of proper water treatment to minimize the harmful effects of the toxic heavy metals in water, so that a supply of clean water can be distributed into the environment or household. This review highlights several water treatment methods that can be used in removing heavy metal from water. Among various treatment methods, the adsorption process is considered as one of the highly effective treatments of heavy metals and the functionalization of adsorbents can fully enhance the adsorption process. Therefore, four classes of adsorbent sources are highlighted: polymeric, natural mineral, industrial by-product, and carbon nanomaterial adsorbent. The major purpose of this review is to gather up-to-date information on research and development on various adsorbents in the treatment of heavy metal from water by emphasizing the adsorption capability, effect of pH, isotherm and kinetic model, removal efficiency and the contact of time of every adsorbent.
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