Oxygen demand is helpful for measuring squander loadings, analyzing the effectiveness from the treatment method method, and guaranteeing compliance with polices for the oxygen demand of effluent.C O D = 8000 ( b ? s ) n T h e t i c h m a u t h u displaystyle COD= frac 8000(b-s)n The tich mau thu link May 21, 2018 Nitrogen and Drinking wate