催化氧化法处理对氯硝基苯(PCNB)废水的研究

Activated carbon-H_2O_2 catalytic oxidation press for PNCB degradation of wastewater treatment

以活性炭为催化剂 ,H2 O2 作氧化剂催化氧化降解对氯硝基苯 (PCNB) ,结果表明 ,在H2 O2 CODCr=1 2 ,活性炭 H2 O2 =0 4,pH =3 0的条件下 ,反应可在 1 80min结束 ,PCNB的去除率高于 99%,CODCr去除率可达 80 %,与Fenton试剂法相比较 ,CODCr去除率提高 1 78倍 ,并对降解机理作了初步讨论。

Catalytic oxidation process for the PNCB degradation was taken with activated carbon of catalyst and H 2O 2 of oxidant.The study shows that the degradation reaction completed within 180 minutes with over 99% of PNCB removal and COD Cr removal under the conditions of H 2O 2/COD Cr=1.2,carbon/H 2O 2=0.4,pH=3.0.This is improved to be 1.78 times of the COD Cr removal obtained by Fenton method.The paper also discussed preliminarily the degradation mechanism.