WATER QUALITY OF THE BRAHMANI RIVER- AN ANALYTICAL STUDY UPSTREAM, MID STREAM AND DOWN STREAM AT EFFLUENT DISCHARGE POINT OF TALCHER INDUSTRIAL COMPLEX, ORISSA, INDIA
The Talcher Industrial Zone in the state of Orissa, India is situated in the bank of river Brahmani. The industries are responsible for following Brahmani and its tributories by discharging topic effluents, municipal sewages, domestic garbages etc. River Brahmani is one of the major river systems in Orissa with a catchment area of 39000 Sqm. KM. Which directly and indirectly influences the human activities. The present investigation deals with a comparative study of physico-chemical characteristics of water samples taken from four different sampling locations situated near the industrial zone of Talcher. The authors have constantly monitored the Parameters like - pH, conductivity, hardness, DO, BOD, COD, TDS, TSS, PO4, SO4, NO3, Cl etc. during 2005 and 2006 in different seasons viz. Summer, Rainy, Post rainy &Winter. The depletion of DO, increase in COD, BOD, TSS etc. indicate that the water quality is deteriorating at different stretches of the river which is posing a threat to aquatic life. It was observed that many parameters of the sampled surface water were found within the tolerance limit as specified by WHO and IS and some parameters were beyond the limit.
R.B. PANDA, D. PRADHAN AND L.K. PANDA