摘要
文章以活化过硫酸钠为氧化剂对苯并(a)芘、苯并(a)蒽、二苯并(a,h)蒽和苯并(b)荧蒽进行氧化反应研究,确定合适的工艺参数来修复挥发性污染土壤。以上海市某场地半挥发性有机物污染土壤治理工程为实例,对其进行小试研究,确定较优的反应范围,最后应用到现场并试中确定最佳现场参数以解决整个修复工程。该工程污染土方量约2500 m^(3),污染物为苯并(a)芘、苯并(a)蒽、二苯并(a,h)蒽和苯并(b)荧蒽。工程以2%过硫酸钠(Na_(2)S_(2)O_(8))为氧化剂,2%氧化钙为激活剂,采用异位高级氧化技术对该污染土壤进行修复,修复后全部土壤达到修复标准并进行原场地回填处置。该研究比较过硫酸钠高级氧化修复多种半挥发性污染物的效果并进行实际工程应用,对半挥发性有机物污染土壤的修复具有实践指导意义。
This study has made advanced oxidation investigation of active persulfate sodium(Na2S2O8)on benzo(a)pyrene,benzo(a)anthracene,dibenzoanthracene and benzo(b)fluoranthene to dicide on the effective parameters for soil remediation.Based on the project of semi-volatile organic compounds(SVOCs)contaminated soil in Shanghai,series of experiments had been done achieving the least dosage of oxidant to achieve the requirements.Further more,batches of pilot trials had been done to achieve the best dosage of Na_(2)S_(2)O_(8) for treatment.The total amount of the project was about 2500 m^(3) including benzo(a)pyren,benz(a)anthracene,dibenz(a,h)anthracene and benzo(b)fluorathene.The project was remediated with ex situadvanced oxidation technology using 2%oxidant of sodium persulfate(Na_(2)S_(2)O_(8))and 2%activator of calcium oxide.All treated soil which satisf ied with the remediation standard was then back-f illed.This study has investigated the effect of Na_(2)S_(2)O_(8) on different SVOCs and made application on the actual project.It is signif icant to the remediation of semi-volatile organic compounds(SVOCs)contaminated soil in the future.
作者
随晋
SUI Jin(Shanghai Taopu Zhichuangcheng Development and Construction Co.,Ltd.,Shanghai 200060,China)
出处
《化工管理》
2021年第19期40-41,共2页
Chemical Engineering Management
