Study on the treatment for coking wastewater with heterogeneous catalytic oxidation under low temperature and pressure

Zou Donglei, Xu Meng, Yang Zhongping, Lin Xueyu

doi:10.11894/1005-829x.2006年.26（01）.52

Industrial Water Treatment >

2006 , Vol. 26 >Issue 1: 52 - 54

DOI: https://doi.org/10.11894/1005-829x.2006年.26（01）.52

Study on the treatment for coking wastewater with heterogeneous catalytic oxidation under low temperature and pressure

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College of Environment and Resources, Jilin University, Changchun 130026, China

Received date: 2005-09-07

Revised date: 2005-09-07

Online published: 2010-10-01

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Abstract

The removal of COD_Cr and NH4+-N of coking wastewater by the heterogeneous catalytic oxidation under low temperature and pressure has been studied. We got optimal conditions by changing the carrier of catalyst, kinds and concentration of impregnating solution, pH, reaction time, dose of catalyst, dose of H₂O₂ (mass fraction 30%): take the γ-Al₂O₃ which is impregnated by Cu(NO₃)₂ for catalyst, when pH value is 3, volume fraction of catalyst is 40%, volume fraction of H₂O₂ is 4%, reaction time above 3 h, COD_Cr is degraded from 4540 mg/L to lower than 600 mg/L and the ammonia nitrogen is degraded from 552 mg/L to lower than 160 mg/L.

Key words： heterogeneous catalytic oxidation; aluminum oxide; coking wastewater

Cite this article

Zou Donglei, Xu Meng, Yang Zhongping, Lin Xueyu . Study on the treatment for coking wastewater with heterogeneous catalytic oxidation under low temperature and pressure[J]. Industrial Water Treatment, 2006 , 26(1) : 52 -54 . DOI: 10.11894/1005-829x.2006年.26（01）.52

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