Author(s)

Md. Shamimuzzaman¹, Rashed Hasan Nayeem², Nargis Ara³, Md. Masuder Rahman⁴, Md. Iqbal Kabir Jahid¹, Md. Nazmul Hasan^5*

¹Department of Microbiology, Faculty of Biological Science and Technology, Jessore University of Science and Technology, Jessore, Bangladesh.
²Biotechnology and Genetic Engineering Discipline, School of Life Sciences, Khulna University, Khulna, Bangladesh.
³Department of Pharmacy, University of Development Alternative, Dhaka, Bangladesh.
⁴Department of Biotechnology and Genetic Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh.
⁵Department of Genetic Engineering and Biotechnology, Faculty of Biological Science and Technology, Jessore University of Science and Technology, Jessore, Bangladesh.

Dhaka is one of the most densely-populated megacities in the world. Water supply problem is acute in this city, but the quality of drinking water has tremendous importance as potability. This study was aimed at comparing various physicochemical and microbiological parameters which are very much relevant for the drinking water quality of Dhaka city of Bangladesh. A total of 80 samples from 11 collection point of different places were collected over ten months. After that, the samples were examined by a different measuring device for physicochemical parameter testing. Considering physicochemical parameters, all water samples were within the limit for pH. However, 53.75% water had unsatisfactory for chlorine level. Total Dissolve Solid (TDS), hardness, iron, and alkalinity based unsatisfactory were 28.75%, 15.0%, 8.75%, and 3.75% respectively. Five parameters had taken into consideration to measure the microbiological quality. The cultural and biochemical methods showed that 80 water samples have a different range of contamination. The total aerobic count was unsatisfactory for 53.75% samples. Sixty-one samples were found coliform contaminated that is 76.25% of the total samples and 58.75% sample was carried fecal substances. E. coli and Vibrio was unsatisfactory as 61.25% and13.75% respectively. This study revealed that how much safe is supplied water of a municipal water supplier.

Water Quality, Microbial Assay, Coliform, Fecal Coliform, Chlorination, Potability, Physicochemical Properties of Water, Pathogen

Shamimuzzaman, M. , Nayeem, R. , Ara, N. , Rahman, M. , Jahid, M. and Hasan, M. (2019) Physico-Chemical and Microbiological Quality Assessment of Supply Water around Dhaka City, Bangladesh. Journal of Water Resource and Protection, 11, 280-295. doi: 10.4236/jwarp.2019.113016.