calculation of alum dosing rate in wastewater treatment in iran

calculation of alum dosing rate in wastewater treatment in iran
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  • Can alum dosing be determined for controlled removal of dissolved organic carbon?
  • Abstract: In this paper, the development of a model is described which is designed for the determination of alum dosing needed for controlled removal of dissolved organic carbon (DOC) in drinking water treatment.
  • What is the optimum alum dosage for turbidity?
  • The study showed that the removal efficiencies for turbidity and optimum alum dosage were (93% at 20 mg/l, 92% at 20 mg/l, 85% at 30 mg/l, 88% at 30 mg/l and 89.3% at 30 mg/l) respectively.
  • How much does wastewater treatment cost in Iran?
  • The treatment plants operational costs usually amount up to 0.2 US $/m3 wastewater. About 55% of treated municipal effluent is reused in Iran, with an emphasis on the agricultural sector. The electricity consumption in municipal wastewater treatment facilities amounts for 0.1% (241 million kWh/y) of the total electricity consumption of the country.
  • What is the optimal dose of alum and Pac?
  • In this study, the optimal dose of Alum, with pH 8, was obtained 20 (mg/L) and the optimal dose of PAC (mg/L) was obtained 25. It was also observed that with increasing of the turbidity of raw water intake, especially on rainy days, the efficiency of coagulants decreased.