The increasing demand of the authorities for environmental protection and also cost savings have led many industries to reduce fresh water consumption. To limit fresh water intake by the reuse of effluents, cost effective and technically feasible processes are required to treat, at least partially, the effluent streams. An end-of-pipe treatment for the total effluent seems not applicable because it creates problems, in respects to high volume nad dilution, mixing of biodegradable iwth non-biodegradagle effluents, and so on. In this study, the treatment of non-biodegradable or even toxic effluents with high chemical Oxygen Demand, generated in a debarking process is evaluated.
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