IJCRAR is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCRAR Articles.

Abstract                 Volume:4  Issue-6  Year-2016          Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Heavy Metal Pollution, Sources, Toxic Effects and Techniques Adopted for Control
Shamim Ahmad1*, Anwer Ali1 and Ahmad Ashfaq2
1Department of Chemistry, D.S. College, Aligarh, Dr. B. R. Ambedkar University, Agra (U.P), India
2Civil Engineering Section, Faculty of Engineering & Technology, Aligarh Muslim University, Aligarh, India
*Corresponding author
Abstract:

Heavy metals, a major category of globally distributed pollutants, discharged by various industries in their effluents, have tendency to accumulate in selected tissues of the human body and their potential to be toxic for all life forms even at relatively minor levels of exposure. Several processing techniques like chemical precipitation, ion exchange, flotation, solvent extraction, adsorption, membrane filtration and dialysis are available to reduce the concentration of heavy metals in wastewater. Adsorption onto various natural and synthetic adsorbents has become well known method for the removal of toxic metal ions. This study gives an account of the role played by adsorption phenomena in reducing heavy metal pollution by using various types of adsorbents. Heavy metals removal efficiencies through various techniques has been studied and found that adsorption is more promising, more efficient, eco-friendly and widely adopted technique in reducing heavy metal pollution. A large number of low cost natural and synthetic adsorbents such as agricultural waste, minerals, clays, activated carbon, sludge and coal ash can be employed in removing heavy metals from wastewater streams.

Keywords: Adsorption,exposure,efficiency,pollutants,adsorbents,pollution,eco-friendly.
Download this article as Download

How to cite this article:

Shamim Ahmad, Anwer Ali and Ahmad Ashfaq. 2016. Heavy Metal Pollution, Sources, Toxic Effects and Techniques Adopted for Control.Int.J.Curr.Res.Aca.Rev. 4(6): 39-58
doi: http://dx.doi.org/10.20546/ijcrar.2016.406.005