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DFCCIL_CE _Quiz 36
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In the oxidation ditch, the excess sludge is taken to?
Fresh sludge has moisture content of 99% and after thickening, its moisture content is reduced to 96%. The reduction in volume of sludge is:
Septic tank is
The ventilation in sewers is needed to avoid the
When are drop manholes provided in a sewerage system?
Critical dissolved oxygen (D.O.) deficit occurs in which one of the following zones of pollution of ‘oxygen sag curve’ in case of self- purification of natural steam?
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Jun 21AE & JE Exams