A sewage treatment plant $\text{(STP)}$ receives sewage at a flow rate of $20000 \mathrm{~m}^3$ per day. The sewage has $200 \mathrm{mg} / \mathrm{L}$ of suspended solids. Assume $60 \%$ suspended solids are removed in the primary clarifier. The underflow $\text{(i.e. sludge)}$ removed from the clarifier contains $5 \%$ solids $\text{(by weight)}$.
The daily volume of the sludge generated will be $\mathrm{m}^3$ per day.
Assume sludge density $=1000 \mathrm{~kg} / \mathrm{m}^3$.
- $4$
- $8$
- $48$
- $800$
