Degradation of Coking Wastewater under Microwave Irradiation in the Presence of Modified Activated Carbon

被引：4

作者：

Gao, Yu ^{[1
]}

Zou, Donglei ^{[1
]}

Liu, Yuzhi ^{[1
]}

Guan, Heda ^{[1
]}

Sun, Wentian ^{[1
]}

机构：

[1] Jilin Univ, Minist Educ, Key Lab Groundwater Resources & Environm, Jilin 130021, Jilin, Peoples R China

来源：

CLEAN-SOIL AIR WATER | 2019年 / 47卷 / 10期

关键词：

coking wastewater; microwave radiation; modified activated carbon; WET PEROXIDE OXIDATION; ORGANIC POLLUTANTS; CATALYST; REMOVAL; DYE; ADSORPTION; NITROGEN; ENERGY; REGENERATION; FABRICATION;

D O I：

10.1002/clen.201900095

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, a new material consisting of activated-carbon-containing magnetic oxide is prepared for assisted microwave (MW) irradiation treatment of coking wastewater. The optimum condition for degrading coking wastewater is 98.14% chemical oxygen demand (COD), under which 87.57% ammonia nitrogen (NH3-N) can be removed. The results are verified by GC-MS, showing that most organic pollutants can be adsorbed by modified activated carbon (MAC). The surface morphology and elemental composition of MAC before and after microwave irradiation and adsorption is determined by scanning electron microscopy. After microwave irradiation, many apertures of pores looked relatively large. It can be shown that MAC as a catalyst in the microwave-assisted treatment process has many advantages, including rapid degradation of COD and NH3-N. In conclusion, microwave-irradiation-assisted MAC treatment of coking wastewater is a novel technology that is economical, efficient, and has broad prospects for development.

引用

页数：9

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