Civil Engineering > GATE 2022 SET-2 > Sludge Treatment
A sewage treatment plant receives sewage at a flow rate of 5000 m3/day. The total suspended solids (TSS) concentration in the sewage at the inlet of primary clarifier is 200 mg/L. After the primary treatment, the TSS concentration in sewage is reduced by 60%. The sludge from the primary clarifier contains 2% solids concentration. Subsequently, the sludge is subjected to gravity thickening process to achieve a solids concentration of 6%. Assume that the density of sludge, before and after thickening, is 1000 kg/m3.
The daily volume of the thickened sludge (in m3/day) will be __________. (round off to the nearest integer)
The daily volume of the thickened sludge (in m3/day) will be __________. (round off to the nearest integer)
Correct : 17
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