Content area
Abstract
Pollution due to heavy metals is currently a serious problems affecting water bodies. The removal of heavy metals is of great concern due to their toxicity at trace levels and accumulation in the biosystem. Here we review the technical feasibility of biosorption and ion exchange methods for the removal of various heavy metals from the aqueous media. Chemical pretreatment of low-cost biosorbents are presented. Chemically modified biosorbents exhibit far better adsorption capacities than unmodified ones. We also highlighted the effect of pH on the biosorption for maximal uptake of heavy metals, because pH modifies the surface charge of the biosorbent as well as the speciation of heavy metals.
Details
Title
Removal of heavy metal ions from aqueous system by ion-exchange and biosorption methods
Author
Arshid Bashir 1 ; Lateef Ahmad Malik 1 ; Sozia Ahad 1 ; Manzoor, Taniya 1 ; Mudasir Ahmad Bhat 2 ; Dar, G N 3 ; Altaf Hussain Pandith 1
1 Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
2 Department of Chemistry, National Institute of Technology, Hazratbal, Srinagar, Kashmir, India
3 Department of Physics, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
1 Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
2 Department of Chemistry, National Institute of Technology, Hazratbal, Srinagar, Kashmir, India
3 Department of Physics, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
Pages
729-754
Publication year
2019
Publication date
Jun 2019
ISSN
16103653
e-ISSN
16103661
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2150230814
Copyright
Environmental Chemistry Letters is a copyright of Springer, (2018). All Rights Reserved.