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异位化学氧化处理石油烃污染土壤的工程实践 |
Engineering Practice of Treating Petroleum Hydrocarbons Contaminated Soil by Ectopic Chemical Oxidation |
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DOI: |
中文关键词: 石油烃污染 氧化剂 异位化学氧化法 土壤修复 |
英文关键词: Petroleum hydrocarbon pollution Oxidant Ectopic chemical oxidation method Soil remediation |
基金项目:国家重点研发计划基金资助项目(2019YFC1804004) |
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中文摘要: |
选用双氧水硫酸亚铁、氧化钙活化过硫酸钠、氢氧化钠活化过硫酸钠3种氧化剂体系处理被石油烃(C10~C40)污染的土壤,对比不同氧化剂体系的处理效果,筛选出较好的氧化剂体系,用于指导石油烃(C10~C40)污染土壤的异位化学氧化修复工程实施。试验表明,氢氧化钠活化过硫酸钠能高效、稳定地降解土壤中的石油烃(C10~C40);当过硫酸钠添加量为5%、氢氧化钠活化过硫酸钠对石油烃(C10~C40)的降解效率最高达到834%。按照过硫酸钠添加量为2%实践,处理后的污染土壤中石油烃(C10~C40)含量满足标准要求。 |
英文摘要: |
Three kinds of oxidants, hydrogen peroxide ferrous sulfate, sodium persulfate activated by calcium oxide and sodium persulfate activated by sodium hydroxide, were selected to treat petroleum hydrocarbons(C10~C40)contaminated soil. Comparing the treatment effect, a good oxidant was selected for the remediation of petroleum hydrocarbons(C10~C40)contaminated soil by ectopic chemical oxidation. The results indicated that sodium persulfate activated by sodium hydroxide could efficiently and stably degrade petroleum hydrocarbons (C10~C40)in soil. When the addition of sodium persulfate was 5%, the highest degradation rate of petroleum hydrocarbon(C10~C40)was 83.4%. The content of petroleum hydrocarbon (C10~C40) in the contaminated soil after treatment met the standard requirement with the adding of 2% sodium persulfate. |
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