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Research Article
PhysicoBchemical Study and Budgeting of Wastewater from Hyderabad City Limits

Abdullah Laghari, Shah Nawaz Chandio, M.Y. Khuhawar, T.M. Jahangir and S.M. Laghari

Journal of Biological Sciences, 2004, 4(3), 317-322.

Abstract

During the study period (1999-2001) thirty parameters were analyzed and average of six determinations were examined. Transparency was in range of 4.42-13.42 cm, dissolved oxygen remained absent at all sampling stations, Biological Oxygen Demand (BOD5) 367-177 mg L-1, Chemical Oxygen Demand (COD) 648-312 mg L-1, total nitrogen 33.94-12.8 mg L-1 and total phosphate 7.19-2.6 mg L-1. Inorganic pollutants: chloride, total residues, total filterable residues and total non-filterable residues were calculated. The average metal ions sodium, calcium, magnesium and potassium were observed in the range of 98.7-314, 59-148, 30-81.6 and 23.4-56.8 mg L-1, respectively. SAR values were calculated in the range of 2.47-5.3. The total quantities of wastewater discharge from Hyderabad city areas were calculated to be 103235 m3/day. The results indicate 26.94 ton/day of chloride, 0.46 t/day of total hydrolysable phosphate, 2.43 t/day of Kjeldahl nitrogen, 152.02 t/day of total residues, 144.98 t/day of total filterable residues, 36.10 t/day of non-filterable residues, 17.30 t/day of sodium, 8.51 t/day of calcium, 4.91 t/day of magnesium and 3.46 t/day of potassium.

ASCI-ID: 38-883

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