BiologyMediumHigh School (11–12)Biology in Human Welfare › Microbes in Human WelfareA-LevelIBAP EAPCETBCECECUET UGGUJCET
Created by StemPy LabA plant treats sewage with a BOD of 350 mg per litre. Primary treatment removes 40 per cent of the BOD, and secondary treatment removes 85 per cent of what is left. What is the BOD of the final effluent?
Discussion (0)
Log in to join the discussion.
Loading…