Pages: 23-32

Abstract

Water quality of aquatic systems is much affected by the discharge of industrial effluents. Dairy industries release huge volumes of wastewater which can deteriorate water quality. Hence in the present work, the sailfin catfish, Pterygoplichthys pardalis was tested for its efficiency to improve the quality of dairy effluent in 10, 20, 30 and 40 % concentrations for five days. The fish was able to reduce the levels of chlorides, nitrates, sulphates, ammonia and total phosphorous. The differences between control and experimental sets, were evaluated for the above parameters using students’ ‘t’ test.