Physicochemical assessment of Dhanmondi lake water in Dhaka city, Bangladesh

Abstract

The main objective of this study was to examine the quality of water in the large reservoir of the Dhaka city lake and to determine whether it would be economically acceptable to purify this water for later use and to make it usable. The water quality parameters investigated are pH, temperature, electrical conductivity, hardness, alkalinity, total dissolved solids, total suspended solids, chloride, sulfate, phosphate, nitrite, nitrate, biochemical oxygen demand, chemical oxygen demand, and dissolved oxygen. The study has been done targeting three specific locations on Dhanmondi Lake, where crowds are comparatively the highest. This implies that there is a significant likelihood of pollution as well. The results of our 13-month study show that the quality of Dhanmondi lake water is somewhat higher than the international standard and some is at a tolerable level determined by the Bangladesh Department of Environment.

Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods

“…This finding is consistent with other studies that have examined the impact of anthropogenic sources and geological factors on electrical conductivity in water bodies. For instance, according to a study conducted in the United States, salinization and alkalinization, which are linked to elevated EC levels, are caused by anthropogenic inputs of ions containing strong bases and carbonates and accelerated weathering assessed the physicochemical parameters of lake water in Bangladesh and found that EC levels were within the acceptable range established by the Bangladesh Department of Environment [43]. However, a Nigerian study of the physicochemical parameters of well water found that EC levels were within the World Health Organization's (WHO) allowable limits, with the exception of certain locations [44].…”