Quality Analysis of Potable Water at Dakshin Khan in Dhaka City, Bangladesh
Paper Details
Quality Analysis of Potable Water at Dakshin Khan in Dhaka City, Bangladesh
Abstract
The aim of this study was to assess the physiochemical and microbiological quality of DWASA supplied drinking water in Dakshin khan area, Dhaka, Bangladesh. A total of twenty one water samples in three groups were collected from DWASA water supply pumps, house taps and tube wells. The physiochemical properties i.e. Dissolved Oxygen, pH, Total Dissolved Solids, Turbidity, Electrical Conductivity, were studied by to evaluate the quality of drinking water. Total coliform was studied to assess the microbiological quality of water by membrane filtration method. The physicochemical properties of different sources varied with location and were found in acceptable range in accordance with WHO and Bangladesh guidelines except for EC and TDS. The electrical conductivity was very high, ranged from 170 to 552 μS/cm. On the other hand, TDS value was in limit 100 to 200 mg/l which is very low. Significantly higher bacterial counts (33 CFU/ml to 1.0 × 103 CFU/ml) were recorded in the samples from house taps which might be injurious to health but was acceptable in tube wells and WASA pumps. Hence, the intrusion of wastewater through leakage in distribution lines of Dhaka WASA supply chain might be the source of microbiological contamination of drinking water.
APHA. 1998. Standard Methods for the Examination of Water and Wastewater. 20 thedn. American Public Health Association. Washinhton, D.C.
Acharjee M, Rahman F, Beauty SA, Feroz F, Rahman MM, Noor R. 2011. Microbiological Study on Supply Water and Treated Water in Dhaka City. Stamford Journal of Microbiology 1, 42–45.
Haq AK. 2006. Water management in Dhaka. Water Resource Development 22, 291-311.
ISW-BDS-ECR. 1997. Ministry of Environment and Forest, Inland Surface Water in Bangladesh, Gazette notification 27, Aug.
Islam S, Begum HA, Nili HY. 2010. Bacteriological Safety Assessment of Municipal Tap Water and Quality of Bottle Water in Dhaka City: Health Hazard Analysis. Bangladesh Journal of Medical Microbiology 4, 9–13.
Kamal MM, Malmgren-Hansen A, Badruzzaman ABM. 1999. Assessment of pollution of the RiverBuriganga, Bangladesh, using a water quality model. Water Science and Technology 40, 129-136.
Mahbub KR, Nahar A, Ahmed MM, Chakraborty A. 2011. Quality Analysis of Dhaka WASA Drinking Water: Detection andBiochemical Characterization of the Isolates. Journal of Environmental Sciences and. Natural. Resources 4, 41-49.
Oguntoke O, Aboderin OJ, Bankole AM. 2009.Association of Water-Borne Diseases Morbidity Pattern and Water Quality in Parts ofIbadan City, Nigeria, Tanzania Journal of Health Research 11, 189–195.
Parveen S, Ahmed MSU, Tania N. 2008. Microbial Contamination of Water around Dhaka City. Bangladesh Journal of Scientific and. Industrial. Research 43, 273–276.
Subramanian B. 2004.Water Quality in South Asia. Asian Journal of Water Environment and Pollution 1, 41–54
Sabrina M, Hasan AM, Mohammad F, Subhagata C. 2013. Analysis of WASA Supplied Drinking Water around Dhaka City from Laboratory Analysis Perspective. International Journal of Chemical and Physical Sciences 2, 20-27.
World Health Organization (WHO). 2011. Guidelines for Drinking-Water Quality – Second Edition – Volume 2 – Health Criteria and Other.
Sadia Afrin Nitol, Mohammad Mahbub Kabir, Ferdousi Sultana, Nargis Sultana, Md. Saddam Hossain, A.H.M. Saadat, 2016. Quality Analysis of Potable Water at Dakshin Khan in Dhaka City, Bangladesh. J. Biodiv. Environ. Sci., 8(5), 128-135.
Copyright © 2016 by the Authors. This article is an open access article and distributed under the terms and conditions of the Creative Commons Attribution 4.0 (CC BY 4.0) license.