Calculate RAS and WAS flow rate with data

Reference no: EM133232117

Assignment - Water and Wastewater Worksheet

Description - A secondary wastewater treatment process consists of a complete-mix circular biological reactor and associated secondary clarifier. This process has an influent flow of 2.5 ML/day and maintains a mixed liquor volatile suspended solids concentration of 2850 mg/L. The secondary clarifier produces an effluent stream of 2.0 ML/day with negligible suspended solids (assume 0 mg/L) and a sludge of VSS 6580 mg/L. Following effective primary treatment, influent to the activated sludge process has negligible concentration of suspended solids (assume 0 mg/L) and a BOD of 600 mg/L. This system is operated to maintain constant volume in the process tanks and constant MLSS concentration.

Question - Calculate RAS and WAS flow rate with above data.

Reference no: EM133232117

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