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当前位置: 首页 > 文章 > 不同氧化剂活化过硫酸钠对土壤中多环芳烃降解的影响 浙江农业学报 2017,29 (1) 129-136
Position: Home > Articles > Degradation of PAHs in soil by different oxidants activated sodium persulfate Acta Agriculturae Zhejiangensis 2017,29 (1) 129-136

不同氧化剂活化过硫酸钠对土壤中多环芳烃降解的影响

作  者：
占升;郑义;李森;张杨;张宏玲;商照聪;罗勇
单  位：
上海应用技术大学;上海化工研究院
关键词：
过硫酸钠;活化;多环芳烃
摘  要：
分别以过氧化氢、过碳酸钠和过氧化钙活化过硫酸钠降解蒽、芘及苯并芘3种多环芳烃,并对其反应过程进行动力学讨论及降解产物分析。结果表明,3种氧化剂活化过硫酸钠的效果依次为过碳酸钠>过氧化氢>过氧化钙。在温度25℃,土与水均为5 g,过碳酸钠与过硫酸钠在水中浓度分别为0.67及1.0 mmol·g-1,反应时间180 min时,蒽、芘和苯并芘的降解率分别为96.8%、93.5%和96.8%。动力学考查结果表明,过碳酸钠和过氧化氢活化过硫酸钠降解多环芳烃的反应符合一级反应动力学规律,且土壤中绝大部分多环芳烃被降解。
译  名：
Degradation of PAHs in soil by different oxidants activated sodium persulfate
作  者：
ZHAN Sheng;ZHENG Yi;LI Sen;ZHANG Yang;ZHANG Hongling;SHANG Zhaocong;LUO Yong;School of Chemical and Environmental Engineering,Shanghai Institute of Technology;Shanghai Research Institute of Chemical Industry;
关键词：
sodium persulfate;;activation;;PAHs
摘  要：
Activated sodium persulfate by hydrogen peroxide,sodium percarbonate and calcium peroxide were used to removal anthracene,pyrene,and benzoapyrene(PAHs) in soil,respectively. In addition,the kinetics and byproducts in the reaction process of PAHs were investigated. The results showed that the activation effect on sodium persulfate was in the order of sodium percarbonate > hydrogen peroxide > calcium peroxide. The degradation rate of anthracene,pyrene and benzoapyrene was 96. 8%,93. 5% and 96. 8%,respectively,in the case of sodium persulfate activated by sodium percarbonate with the following condition:reaction time of 180 min,temperature of 25 ℃,soil and water both 5 g,and the concentration of sodium persulfate,sodium percarbonate in water of 1. 0 and 0. 67mmol·g-1. Kinetic analysis indicated that degradation of PAHs by sodium persulfate activated by sodium percarbonate and hydrogen peroxide both were complying with first order reaction kinetics,and the vast majority of PAHs in the soil were degraded.

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