RTU B.Tech Environmental Engineering 2 2013 previous year questions papers

The sewage is flowing at the rate of 4.8 million liters/day from a primary clarifier to a standard rate trickling filter.

B.Tech, Environmental Engineering 2

  The 5 day BOD of the influent is 180 mg/l. The value of organic loading may be taken as $200 gm/m^3/day$and surface loading rate as $1800 l/m^2/day$. Determine the volume of the filter and its depth. Also calulate the efficiency of this filter unit.

What do you understand by Digestion of sludge? Differentiate between anaerobic and aerobic digestion. Explain the machanism of anaerobic digestion.

B.tech 2013  Environmental Engineering 2

 

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