Stp Design Calculation Direct

The HLR is the flow rate per unit area of the treatment tank.

The BOD5 removal efficiency is calculated based on the influent and effluent BOD5 concentrations. stp design calculation

A portion of the settled sludge is returned to the aeration tank to maintain the microbial population. 4. Advanced Biological Technologies The HLR is the flow rate per unit area of the treatment tank

(for ASP – Activated Sludge Process)

where: $SP$ = sludge production rate (kg/d) $TSS$ = TSS concentration (mg/L) $W$ = sludge wasting rate ( decimal value) stp design calculation