Physico-Chemical Analysis of Wastewater Samples Collected from the Chemistry Laboratory at Kohima Science College, Jotsoma and Model Christian College Kohima

Abstract

Wastewater especially from the chemistry laboratory contains several toxic chemicals that are harmful to the environment, although the quantity of wastewater produced by the laboratory is relatively small, it in some way has an impact on the environment. This study is aimed at analyzing the physicochemical parameters of wastewater collected from the chemical laboratories in Kohima Science College Jotsoma and Model Christian College Kohima using standard analytical procedures. The samples collected were analyzed for various physicochemical parameters like pH, Electrical Conductivity (EC), Salinity, Total Dissolved Solids (TDS), Oxidation-Reduction Potential (ORP), Iron, Sulfate, Phosphate, Nitrate, Dissolved Oxygen (DO), Potassium, Sodium, Total Hardness (TH), Alkalinity, Chloride and Calcium for which the results were compared with the standard prescribed by the BIS and WHO for drinking water. The results obtained from the physicochemical analysis of water samples shows that some parameters are found to be within the permissible limit while a few parameters were found to be beyond the permissible limit of BIS and WHO standards. Thus, it can be concluded that the values of the parameters vary depending on the water samples collected.