Trihalomethane formation potential in drinking water from Minab Steghlal dam to water distribution network in Bandar Abbas, Iran

AUTHORS

Vali Alipour 1 , Leyla Rezaei 2 , Sakineh Shekoohiyan 2 , * , Kavoos Dindarloo 3 , Babak Goodarzi 2

1 Assistant Professor Department of Environmental Health, Environmental and Occupational Health Engineering Research Center, Hormozgan University of Medical Sciences , Bandar Abbas, Iran.

2 Instructor Department of Environmental Health, Environmental and Occupational Health Engineering Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.

3 Assistant Professor Department of Environmental Health, Environmental and Occupational Health Engineering Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.

How to Cite: Alipour V, Rezaei L, Shekoohiyan S, Dindarloo K, Goodarzi B. Trihalomethane formation potential in drinking water from Minab Steghlal dam to water distribution network in Bandar Abbas, Iran, Hormozgan Med J. 2014 ; 18(3):e87759.

ARTICLE INFORMATION

Hormozgan Medical Journal: 18 (3); e87759
Published Online: July 22, 2013
Article Type: Research Article
Received: April 09, 2013
Accepted: July 22, 2013

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Abstract

Introduction: Organic matters enter to drinking water from a variety of sources, but one
of the major sources of these compounds in aqueous solution can be decomposed plant and
microbial residues. Chlorination is the most common method for water disinfection, the free
chlorine in the water reacts with natural organic compounds and form disinfection
byproducts. One of the dangerous byproducts is Trihalomethanes (THMs). These
compounds are suspected to be carcinogenic for humans.
Methods: In this study, 96 samples were taken from 4 points (Mianb Steghlal dam, output
Minab water treatment plant, input and output of water treatment plant in Bandar Abbas)
within 6 months. Parameters such as TOC, pH, temperature and chlorine residual were
measured and used for prediction of THM formation by a methematical model.
Results: Results showed that Bandar Abbas drinking water has high TOC and THM
formation potential is high. Minimum and maximum of THM was measured 14.78 and
84.86μg/l, respectively. Positive correlation was seen between concentrations of organic
carbon and pH with THM formation.
Conclusion: Increasing pH and TOC concentration in water, leads to increase of THM
formation potential. Bandar Abbas drinking water has high potential to form THM,
therefore, it is necessary to consider measures in this field.

Keywords

Trihalomethane - Carbon - Water Pollutants

© 2014, Hormozgan Medical Journal. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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