for the influent from food paper and pulp sugar and starch industries the biodegradability is needed to address before complying with this new program the influent with easily and entirely biodegradable organic content or the ratio of biological oxygen demand to chemical oxygen demand less than 1.7 is exempted from this regulation the influent with absorbable organic halogen which includes cfc pce and tec is also exempted from this program for the influent with heavy metals the complex metal compounds with ligand such as metal complex with ethylenediamine are also exempted from this program