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Treatment of aqueous arsenic - A review of biosorbent preparation methods.
Zoroufchi Benis, Khaled; Motalebi Damuchali, Ali; McPhedran, Kerry N; Soltan, Jafar.
Affiliation
  • Zoroufchi Benis K; Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
  • Motalebi Damuchali A; Department of Civil, Geological & Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
  • McPhedran KN; Department of Civil, Geological & Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. Electronic address: Kerry.mcphedran@usask.ca.
  • Soltan J; Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
J Environ Manage ; 273: 111126, 2020 Nov 01.
Article in En | MEDLINE | ID: mdl-32734895
Arsenic (As) is a worldwide human health issue with the major exposure route being the consumption of As-contaminated drinking water. Sorption is considered to be an efficient treatment method, among other technologies, for As removal from various water and wastewater matrices. There are common commercially available sorbents, however, the use of locally or regionally available biomasses have recently been of interest as potentially cost-effective and environmentally friendly alternatives. Despite these benefits, untreated biomasses often show low sorption capacity, can be too fragile, and can lead to coloration of waters when used in treatment processes. Treatment methods of biomasses can include chemical processes using acid or alkaline solutions, developing of biomass composite by deposition of activating agents, and preparation of biochars. This review includes an overview of 53 recent studies that assess a variety of biomass modification methods meant to overcome these issues such as activation with acids or bases and biomass-based composites. Furthermore, future perspectives have been provided to assist in the further optimization of methods for biomass modifications to enhance their As sorption capacities.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Arsenic / Water Pollutants, Chemical / Water Purification Language: En Journal: J Environ Manage Year: 2020 Document type: Article Affiliation country: Canada Country of publication: United kingdom

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Arsenic / Water Pollutants, Chemical / Water Purification Language: En Journal: J Environ Manage Year: 2020 Document type: Article Affiliation country: Canada Country of publication: United kingdom