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Adsorption mechanisms for heavy metal removal using low cost adsorbents: A review

E. I. UgwuDepartment of Civil Engineering, College of Engineering and Engineering Technology, Michael Okpara University of Agriculture Umudike, P.M.B.7267 Umuahia Abia state, NigeriaObid TursunovDepartment of Power Supply and Renewable Energy Sources, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, UzbekistanD KodirovDepartment of Power Supply and Renewable Energy Sources, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, UzbekistanLina M. ShakerDepartment of Applied Science, University of Technology, 10001 Baghdad, IraqAhmed A. Al‐AmieryDepartment of Applied Science, University of Technology, 10001 Baghdad, IraqI YangibaevaF ShavkarovDepartment of Accounting and Audit, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, Uzbekistan

IOP Conference Series Earth and Environmental Scienceconference2020en

ABI

Annotatsiya

Abstract A review of adsorption mechanisms for heavy metal removal using low cost adsorpthas been carried out in this article. Some metal ion sequestration techniques used over the years have some demerits, ranging from generation of sludge to high operational cost. Adsorption process using low cost adsorbents has been found cost effective and environmentally nuisance-free. In this review, various low cost adsorbents for heavy metal sequestration have been studied. The application of some adsorption models such as single and multi-component isotherms, adsorption thermodynamics, and kinetics as well as the effect of process parameters on heavy metal sequestration using low cost adsorbents has also been reviewed so as to better understand the adsorption process. From the literature reviewed, the percentage removal of chromium, copper and zinc was favoured by an increase in contact time, temperature, initial concentration, adsorbent dosage as well as a decrease in pH.

Hali tarjima qilinmagan

Mavzular

Adsorption and biosorption for pollutant removal Extraction and Separation Processes Environmental remediation with nanomaterials

Identifikatorlar

DOI: 10.1088/1755-1315/614/1/012166

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