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BOD & COD Treatment with Ozone The chemical oxygen demand (COD) is a measure of wastewater and water quality that can be used as in indirect measurement of the amount of oxidizable compounds. COD evaluates all chemically oxidizable substances and can be directly related to the true oxygen demand of the effluent if released in the environment.
During the study they found that more than 90% COD removal efficiency by varying the COD concentration from 400 to 2500 mg/L. Neczaj et al. studied the effect of operating parameter on treatment efficiency using two SBR for the treatment of dairy wastewaters (initial COD concentration 400-7500 mg/L). For removal of 98.6% COD and 80.1% TKN, the
