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A Study On Natural Adsorbents For The Removal Of Chloride Ion In Water


A Study On Natural Adsorbents For The Removal Of Chloride Ion In Water
Authors : Mr.M.Shanmugasundaram, Dr.K.Sudalaimani
Publication Date: 03-08-2012

Authors

Author(s):  Mr.M.Shanmugasundaram, Dr.K.Sudalaimani

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 5 (July - 2012)

e-ISSN:   2278-0181

Abstract

Next to air, the most important requirement for human to exist is water, which is the gift of nature. With growing population, the demand for drinking water is increasing day by day and hence preventive measures are to be taken to prevent the pollution and contamination of water. Chlorides are generally present in water in the form of NaCl. Chloride in concentration above 600mg/l tends to give water a salty taste. WHO specifies Highest desirable concentration of chloride in portable water must be 200ppm. Chloride attack is one of the most important aspects for consideration when we deal with the durability of concrete. Chloride attack primarily induces corrosion, which is responsible for 40% of the failure of structure .As per IS46:2000 the water used for mixing and curing concrete should comprise a chloride content with a permissible limit of 2000mg/l for plain concrete and 500mg/l for reinforced concrete work. In industries there are various methods adopted to produce potable water, of which, the adsorption process is a widely used phenomenon. Here for the removal of chlorine we are using E.crassipes (A natural adsorbent) and Amberlite (a synthetic adsorbent). The objective of our project is to find the adsorption capacity of E.crassipes and Amberlite for the removal of chloride ion in water. The adsorption capacity is found out by Batch studies which include Effect of dosage, Effect of pH, Effect of initial concentration and Effect of contact time. And adsorption capacity is found out theoretically by Langmuir adsorption isotherm and freundlich adsorption isotherm.

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