Abstract

The wet oxidation (WO) regeneration of powdered activated carbon (PAC) used for reverse osmosis concentrate (ROC) treatment was studied. The exhausted PAC was regenerated at different temperatures and times. The experimental results indicated that the optimum regeneration condition could be achieved at a temperature of 200°C for 60min. The mass of carbon in the solid, gas and liquid phases before and after the PAC regeneration was balanced in different regeneration conditions. A molecular weight (MW) distribution of organic matter (OM) in the effluent treated by the PAC regenerated at optimum conditions was performed.

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