International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume2,December 2017,

Topic : Impact of Total Organic Carbon on Trihalomethane Formation in Treated Water of Saidabad Water Treatment Plant and along the Distribution System

Authors:Nusrat Sharmin || Mushfiqur Rahman Khan

Abstract:Role of Total organic carbon in trihalomethane formation in the treated water of Saidabad Water Treatment Plant (SWTP) was investigated during the months of November 2014 to June 2015. Total organic carbon (TOC) concentration of the incoming raw water varied seasonally with amount ranging from 20.52mg/L –40.69mg/L in drier months (November-February) which later decreased to 8.30mg/L –15.02mg/L in the wet season (April-June). A significant increase was also observed in trihalomethane concentrations in dry months at the SWTP outlet, with the highest concentration level of 145.80 μg/L being recorded in January. Based on this trend, a site-specific positive correlation (r = 0.526) was found between raw water TOC and treated water THM using Pearson Method of Correlation. THM in the distribution system also followed this seasonal pattern and the concentration levels of trihalomethanes increased with increasing distance from the treatment plant. A low but definite correlation was found between distance and formation of THM (r = 0.257). In the six locations selected in Dhaka city, total trihalomethane concentration in the tap water ranged from 28.52 μg/L to 191.17 μg/L. In most cases, the concentration levels obtained in drier months were higher than the maximum permissible limits of 80μg/L set by United States Environmental Protection Agency (USEPA)..

Keywords: Distribution system, total organic carbon, treated water, trihalomethane.

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DOI: 01.1617/vol4/iss12/pid06473

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Dr.Muhammad Ishtiaq,
Mirpur University of
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Mirpur, Azad Kasmir.

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ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
Frequency : Monthly
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