GATE ES · 2021 · ES
Question 32: Wastewater management
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Question 32
ESMCQ2 marksNeeds review
A sewage treatment plant (STP) receives sewage at a flow rate of 20000 m³ per day. The sewage has 200 mg/L of suspended solids. Assume 60 % suspended solids are removed in the primary clarifier. The underflow (i.e. sludge) removed from the clarifier contains 5 % solids (by weight).
The daily volume of the sludge generated will be ______ m³ per day.
Assume sludge density = 1000 kg/m³.
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2021ES
GATE ES 2021 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Multiple choice (MCQ)
- Marks
- 2 marks
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