DefinePK

Abstract

The impact of pollution on the environment requires activities to forestall adverse effects, by the use of various approaches including approaches to predict the effects of pollutants on the environment, determine measures to mitigate the adverse effects and promote the beneficial activities. This research conducted water quality analysis on river Yingi, in Jos, the capital of Plateau State in Nigeria by the assessment of the stream water quality after the effluent from soap industry is disposed into the water body to determine level of pollution in water. Physical, chemical and bacteriological parameters were analyzed, results show that the value of the Biochemical Oxygen Demand of 325mg/l for the polluted water samples at the point of discharge of effluent into the surface water indicates high organic loading into the water body. The average Total Suspended Solids value of 156.44mg/l was reduced to 75.33mg/l at second sampling point, while Total Dissolved Solids value of 679.2mg/l was reduced to 230.25 mg/l by the self purification of the water body; however, there is still need for further treatment to meet standards for various uses. Sodium Absorption ratio of 15.80 shows that the surface water does not meet requirement for use in irrigation purposes. Waste stabilization ponds were designed to reduce the strength of the effluent to a maximum of 25mg/l of Biochemical Oxygen Demand before disposal into the surface water.