Method for remediating chlorinated hydrocarbon contamination, and chlorinated hydrocarbon contamination remediation agent and use

Abstract

The present application relates to the field of environmental remediation, and discloses a method for remediation of chlorinated hydrocarbon pollution, a chlorinated hydrocarbon pollution remediation agent and application, comprising: setting injection points on a chlorinated hydrocarbon pollution site; preparing a sodium persulfate solution with a mass concentration of 7.5% to 15%, and a mixed solution of ferrous sulfate with a mass concentration of 1.6% to 3.2% and sodium pyrophosphate with a mass concentration of 1.25% to 2.5%, namely, a ferric pyrophosphate mixed solution; drilling according to the set injection points, drilling to the pollution depth of the chlorinated hydrocarbon pollution site, and spraying the sodium persulfate solution from deep to shallow; spraying the ferric pyrophosphate mixed solution in the same way, and after chemical oxidation remediation for 7 to 14 days, spraying 5L to 10L of emulsified vegetable oil, and naturally remediating for 30 to 35 days. The method significantly reduces the concentration of chlorinated hydrocarbon pollutants in the soil and groundwater of the chlorinated hydrocarbon pollution site.

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