当前位置: 首页 > 文章 > 过硫酸盐活化技术处理地下水中的BTEX及其动力学 安徽农业大学学报 2012,39 (3) 126-130
Position: Home > Articles > Treatment of BTEX in groundwater by persulfate oxidation reaction and its kinetics Journal of Anhui Agricultural University 2012,39 (3) 126-130

过硫酸盐活化技术处理地下水中的BTEX及其动力学

作  者:
孙威;赵勇胜;杨玲;马百文
单  位:
吉林大学环境与资源学院
关键词:
过硫酸盐;活化处理;BTEX;动力学
摘  要:
利用模拟苯、甲苯、乙苯和二甲苯(BTEX)污染的地下水,研究过硫酸盐(Na2S2O8)活化氧化处理BTEX污染。结果表明,过硫酸盐对BTEX污染的地下水具有很好的处理能力。当Na2S2O8/BTEX(摩尔比)=20,Na2S2O8/Fe2+(摩尔比)=8的时候,BTEX的处理效果最好,甲苯、乙苯和二甲苯去除率均能达到80%以上;而苯的去除率稍低。整个试验过程中体系均处于强氧化环境,pH值降至3以下。过硫酸盐对苯、甲苯、乙苯和二甲苯(BTEX)的去除过程均符合二级反应动力学:1/ct=kt+1/c0。
译  名:
Treatment of BTEX in groundwater by persulfate oxidation reaction and its kinetics
作  者:
SUN Wei1'2,ZHAO Yong-sheng1,YANG Ling1,MA Bai-wen1(1.College of Environment and Resources,Jilin University,Changchun 130026; 2.College of Environment Engineering,Jilin Normal University,Siping 136000)
关键词:
persulfate;activate treatment;BTEX;kinetics
摘  要:
We studied the effects of BTEX by persulfate(Na2S2O8) oxidation treatment on simulated con-taminated groundwater of benzene,toluene,ethylbenzene and xylene(BTEX).The experimental results indicated that the persulfate has good processing ability on groundwater of BTEX pollution.When Na2S2O8 / BTEX in mo-lar ratio of 20,and Na2S2O8 / Fe2 + in molar ratio of 8,the experimental result was the best.The removal rates of toluene,ethylbenzene and xylene reached 80%,except for benzene.The oxidative processes were fitted for second order reaction kinetics: 1/ct=kt+1/c0.The experimental system was in strong oxidizing environment and the results of pH were at the initial state.

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