Civil Engineering :: Waste Water Engineering
- ¾th or ¼th extra space is left in sewer pipes at maximum discharge for
- In detritus tanks,
- Kjeldahl nitrogen is a mixture of
- In sewage, the solids in mg per litre is
- For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of
- To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of
- Pathogens (or pathogenic bacterias) in water may cause
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