The sewage treatment units in which anaerobic decomposition of organic matter is used, are called________________?

Related Mcqs:

Bottom openings 15 cm × 15 cm in the standing baffle wall are provided________________?

A. 15 cm c/c B. 22.5 cm c/c C. 30 cm c/c D. 50 cm c/c...

Pick up the correct statement from the following ?

A. Rate of digestion of sludge is more at higher temperature B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C D. All the above...

Setting out the alignments of sewers may start from__________________?

A. City B. Out-fall C. Tail end D. Any point...

In very first stage of decomposition of the organic matter in sewage________________?

A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed...

The algae dies out in the zone of_____________________?

A. Degradation B. Active decomposition C. Recovery D. Cleaner water...