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.

Details

Title
Adsorption mechanisms for heavy metal removal using low cost adsorbents: A review
Author
Ugwu, E I 1 ; Tursunov, O 2 ; Kodirov, D 3 ; Shaker, L M 4 ; Al-Amiery, A A 4 ; Yangibaeva, I 5 ; Shavkarov, F 6 

 Department of Civil Engineering, College of Engineering and Engineering Technology, Michael Okpara University of Agriculture Umudike, P.M.B.7267 Umuahia Abia state, Nigeria 
 Department of Power Supply and Renewable Energy Sources, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, Uzbekistan; School of Mechanical and Power Engineering, Shanghai Jiao Tong University, 200240 Shanghai, China; Research Institute of Forestry, 111104 Tashkent, Uzbekistan 
 Department of Power Supply and Renewable Energy Sources, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, Uzbekistan 
 Department of Applied Science, University of Technology, 10001 Baghdad, Iraq 
 Research Institute of Forestry, 111104 Tashkent, Uzbekistan 
 Department of Accounting and Audit, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, Uzbekistan 
Publication year
2020
Publication date
Dec 2020
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2548683182
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.