Influence of Selective Conditions on Various Composite Sorbents for Enhanced Removal of Copper (II) Ions from Aqueous Environments

Rebecca O. Adeeyo, Joshua N. Edokpayi, Olugbenga S. Bello, Adeyemi O. Adeeyo and John O. Odiyo
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Rebecca O. Adeeyo: School of Environmental Sciences, University of Venda, Thohoyandou Private Bag X5050, South Africa
Joshua N. Edokpayi: Hydrology and Water Resource Department, School of Environmental Sciences, University of Venda, Thohoyandou Private Bag X5050, South Africa
Olugbenga S. Bello: Department of Pure and Applied Chemistry, Faculty of Pure and Applied Sciences, P.M.B. 4000, Ladoke Akintola University of Technology, Ogbomoso 210214, Nigeria
Adeyemi O. Adeeyo: School of Environmental Sciences, University of Venda, Thohoyandou Private Bag X5050, South Africa
John O. Odiyo: Hydrology and Water Resource Department, School of Environmental Sciences, University of Venda, Thohoyandou Private Bag X5050, South Africa

IJERPH, 2019, vol. 16, issue 23, 1-18

Abstract: Numerous pollutants, including dyes, heavy metals, pesticides, and microorganisms, are found in wastewater and have great consequences when discharged onto natural freshwater sources. Heavy metals are predominantly reported in wastewater. Heavy metals are persistent, non-biodegradable and toxic, transforming from a less toxic form to more toxic forms in environmental media under favourable conditions. Among heavy metals, copper is dominantly found in wastewater effluent. In this review, the effects of high concentration of copper in plants and living tissues of both aquatic animals and humans are identified. The performance of different polymer adsorbents and the established optimum conditions to assess the resultant remediation effect as well as the amount of copper removed are presented. This procedure allows the establishment of a valid conclusion of reduced time and improved Cu (II) ion removal in association with recent nano-polymer adsorbents. Nano-polymer composites are therefore seen as good candidates for remediation of Cu ions while pH range 5–6 and room temperature were mostly reported for optimum performance. The optimum conditions reported can be applied for other metal remediation and development of potent novel adsorbents and process conditions.

Keywords: copper; nano-polymer adsorbent; optimum condition; polymer adsorbent; remediation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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