Chemical repair agent suitable for petroleum pollution soil and use method thereof

The invention discloses a chemical repair agent suitable for petroleum pollution soil and a use method thereof. The chemical repair agent comprises an oxidizing agent, an iron-based compound and a citric acid surface active agent; the oxidizing agent is calcium peroxide; the use method comprises the steps that the petroleum pollution soil and water are mixed, the chemical repair agent is added into a mixture for carrying out a reaction for 4 to 24 h, and the petroleum pollution in the soil can be subjected to oxydative degradation. The operation method is simple, the reaction condition is gentle, the time is short, the application range is wide, and compared with the traditional oxidation technology, the chemical repair agent has the advantages that the oxidation effect is stable and continuous, the agent and running maintaining cost are flow, and the industrial application prospect is large. 本发明公开了种适用于石油污染土壤的化学修复药剂及其使用方法。所述化学修复药剂包括氧化剂、铁基化合物及柠檬酸表面活性剂；所述氧化剂为过氧化钙。使用方法为：将石油污染土壤与水混合，然后在混合物中加入所述化学修复药剂反应4～24h，即可氧化降