Microwave Regeneration of Field-Spent Granular Activated Carbon from Power Plants

被引：1

作者：

Fu, Yi ^{[1
]}

Wang, Luochun ^{[1
]}

Zhou, Zhen ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Shanghai 200090, Peoples R China

来源：

PROGRESS IN ENVIRONMENTAL SCIENCE AND ENGINEERING (ICEESD2011), PTS 1-5 | 2012年 / 356-360卷

关键词：

Microwave; Activated carbon; Regeneration; Power plant; THERMAL REGENERATION; GAC; DECOMPOSITION; IRRADIATION;

D O I：

10.4028/www.scientific.net/AMR.356-360.2065

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Granular activated carbon (GAC) is extensively used to remove natural organic matter and residential chlorine in water treatment process of power plant. After being used, the spent GAC needs to be regenerated in order to save on operation costs and reduce solid waste disposal. In this study, microwave technique was tried to regenerate the field-spent GAC from a power plant. The effect of microwave power, irradiation time and hydrochloric acid pretreatment were investigated, it was found that microwave could recover the adsorption capacity of GAC within a short time and the tannic acid adsorption efficiency of regenerated GAC was 9 times greater than spent GAC; hydrochloric acid pretreatment could improve the regeneration process, it showed the highest removal efficiency and iodine number, 99.6% and 859 mg/g respectively. The results obtained from SEM-EDX showed that hydrochloric acid pretreatment could remove inorganic matter and other impurities of GAC. All these indicate that microwave technique can effectively regenerate field-spent GAC, and hydrochloric acid pretreatment is an important process before regeneration.

引用

页码：2065 / 2070

页数：6

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