Wet oxidation: a pre-treatment procedure for sludge

摘要

Wet oxidation process is specially effective for wastes with a high organic matter which can not be removed by conventional treatment methods. The digested and raw activated sludges of PAKMAYA yeast factory are treated by wet oxidation process. The liquid-phase organic matter concentration [as total organic carbon (TOC)] was increased by 16.5/100 in 10 min during the wet oxidation in the presence of Cu as catalyst and H_2O_2. Lengthening the period of the wet oxidation, the TO-concentration was increased by 66/100 in 120 min.