The influent flow (dwf) is 30,000 m3/day and the influent BOD concentration is 300 mg BOD/l. The suspended solid concentration in the influent is 150 mg/l of which 40% is removed in the primary clarifier, which agrees with about 20% BOD removal. The sludge yield (Y) is 0.6 kgX/kgBODremoved.
Calculate the biomass production (kg biomass per day) assuming all BOD entering the biological process is removed.
Calculate the primary sludge production (kg per day), but for simplicity neglect the remainder of the suspended solids.
The sludge is directly dewatered to a final dry solid concentration of 18%. How much trucks (we are talking about truck transport, thus movements of trucks, not the physical truck itself), that can transport a load of 30 ton, will be needed per year for sludge transport to the incineration plant?
How can the produced sludge be reduced maximally, to minimize transport costs?
2 answers
Kamran, did you get the answer?
Anyone can help, please?