Civil Engineering :: Environmental Engineering - Civil Engineering
- The gas from sludge digestion tank is mainly composed of
- The maximum efficiency of BOD removal is achieved in
- The minimum and maximum diameters of sewers shall preferably be
- The biochemical treatment of sewage effluents is essentially a process of
- Sewage treatment units are normally designed for
- Generally the detention period for grit chambers is kept as
- Activated carbon is used for
- The polluted water is one which
- In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be
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