Effect of Municipal Sewerage and Industrial Effluents on the Quliy of Fuleli Canal Water

Abstract

The report examines the chemical analyses (1) Fuleli canal water (2), Fuleli canal water lifted for agricultural purpose within Hyderabad (3) sewage water added to Fuleli canal. About 15 sampling station were fixed and sampling scheme was repeated every four to six weeks. Time of collection of sample, temperature (air and water) and Sacchi depth were noted and samples for dissolved oxygen (D.O) were stabilized at site. In the laboratory the samples were analyzed for conductivity, pH, residues (total, filterable, nonfilterable, volatile and fixed), chloride, hardness, alkalinity, dissolved oxygen and chemical oxygen demand (COD). The samples were filtered and filtrates were analyzed for nitrite, nitrate, phosphate and sulphate spectrophotometrically. Water samples were acidified at the time of collection of the samples for metal analysis and were filtered before determination. Sodium, potassium, calcium, magnesium, copper, nickel, lead, cadmium, manganese, chromium and zinc were determined by atomic absorption spectrometer. The variation in the parameters with time and discharge of water is noted. The results indicate that sewerage lines are highly loaded with residue and has pronounced effect on the COD of Fuleli Canal. Soi samples from agricultural lands using Fuleli Canal water within Hyderabad city were collected and analyzed for pH conductivity, chloride, nitrate, phosphate, COD, loss on ignition and metal ion contents. Significant effect of water quality on the agricultural land was not indicated.