(Solved): - Design a completely-mixed activated sludge process using three different design approaches (i.e. ...

- Design a completely-mixed activated sludge process using three different design approaches (i.e., calculate the volume of the aeration basin). Base your design for the first approach on detention time, the second one on BOD loading, and the third one on kinetics. The influent design flow rate to the activated sludge process is $10,000{\mathrm{m}}^3/$ day with a ${\mathrm{BOD}}_5$ concentration of $200\mathrm{mg}/\mathrm{L}$. Completely-mixed activated sludge processes typically have detention times ranging from 3 to 6 hours and biokinetic coefficients (Reynolds and Richards, 1996) used in design are: $Y=0.6\mathrm{mg}\mathrm{VSS}/\mathrm{mg}{\mathrm{BOD}}_5,k=3{\mathrm{d}}^{?1},K_{\mathrm{S}}=60\mathrm{mg}/\mathrm{L}$, and $k_{\mathrm{d}}=0.06{\mathrm{d}}^{?1}$. Use a MCRT $=10$ days and $X=2,500\mathrm{mg}/\mathrm{L}$ VSS.