Microwave assisted wet oxidation of p-nitrophenol

被引：7

作者：

Bo, LL ^{[1
]}

Chen, S ^{[1
]}

Quan, X ^{[1
]}

Liu, XT ^{[1
]}

Zhao, HM ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Dalian 116024, Peoples R China

来源：

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 2005年 / 48卷 / 02期

基金：

中国国家自然科学基金;

关键词：

p-nitrophenol; granular activated carbon; fixed bed; microwave; wet oxidation;

D O I：

10.1360/03ye0604

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aqueous solution of p-nitrophenol (PNP) was treated continuously by microwave assisted wet oxidation while flowing through a granular activated carbon (GAC) fixed bed. PNP was pre-adsorbed onto GAC prior to being put into the reactor so as to prevent PNP adsorption on GAC during microwave irradiation. PNP solutions with different initial concentration (218.6 mg/L and 1200 mg/L) were treated under conditions of microwave power 500 W, liquid flow 6.4 mUmin and air flow 40 mUmin or 60 mUmin. The results indicated that the removal of PNP was higher than 90% and more than 65% PNP was mineralized. Phenol, nitrobenzene, hydroquinone and benzoquinone occurred as course products during the operation process, which were degraded further. The biodegradability of the outflow was improved greatly by microwave assisted wet oxidation.

引用

页码：220 / 232

页数：13

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