LPWCO method for the treatment of high concentrated organic wastewater

摘要

Based on wet air oxidation(WAO) and Fenton reagent, this paper raised a new low pressure wet catalytic oxidation(LPWCO) which requires low pressure for the treatment of highly concentrated and refractory organic wastewater. Compared with general wet air oxidation, the pressure of the treatment(0.1-0.6Mpa) is only one of tens to percentage of latter(3.5-10Mpa). In addition, its temperature is no more than 180 deg.c. Compared with Fenton reagent, while H_2O_2/COD (weight ratio) is less than 1.2, the removal of COD in the treatment is over twenty percents more than Fenton's even the value of COD is more than 14000 mg/L. in this paper, the effect factor of COD removal and the mechanism of this treatment were studied.