Method used for repairing petroleum hydrocarbon polluted soil through cooperation of oxidation with lawn plants

Abstract

The invention belongs to the technical field of petroleum hydrocarbon polluted soil repairing, and more specifically relates to a method used for repairing petroleum hydrocarbon polluted soil throughcooperation of oxidation with lawn plants. The method comprises following steps: 1, spraying of an aqueous hydrogen peroxide solution is carried out, wherein 300ml / L of the aqueous hydrogen peroxide solution is sprayed onto petroleum hydrocarbon polluted soil; 2, adjusting of pH, wherein a sulfuric acid aqueous solution is sprayed onto the petroleum hydrocarbon polluted soil after spraying of theaqueous hydrogen peroxide solution to adjust the pH value of the petroleum hydrocarbon polluted soil to be 1 to 3; 3, spraying of a FeSO4 aqueous solution, wherein 1mol / L FeSO4 aqueous solution is sprayed onto the petroleum hydrocarbon polluted soil after pH adjusting, and then standing is carried out for 24h or longer; and 4, plantation of lawn plants, wherein lawn plants are planted on the petroleum hydrocarbon polluted soil, the seed sowing density is controlled to be 10 to 20g / m<2>. According to the method, oxidation is combined with lawn plant treatment to improve the repairing effect ofpetroleum hydrocarbon polluted soil.

Description

technical field [0001] The invention relates to the technical field of remediation of petroleum hydrocarbon-contaminated soil, in particular to a method for remediating petroleum hydrocarbon-contaminated soil by an oxidation method in cooperation with lawn plants. Background technique [0002] Oil spills and leaks that occur during oil extraction, storage, transportation, refining, and processing will produce crude oil that falls on the ground, which poses a risk of pollution to the surrounding soil and groundwater environment. Fenton oxidation technology has the advantages of short reaction cycle, high oxidation efficiency, and no secondary pollution, and has been successfully applied to common organic polluted soils. In addition, as an environmentally friendly, economical and reliable remediation technology, phytoremediation has been widely used in the field of soil pollution remediation. This method is suitable for remediation of soils with low organic matter content, and...

AI Technical Summary

Problems solved by technology

In addition, as an environmentally friendly, economical and reliable remediation technology, phytoremediation has been widely used in the field of soil pollution remediation. This method is suitable for remediation of soils with low organic matter content, and it can improve chemical oxidation to a certain extent. However, the period of phytoremediation is long, and it has certain selectivity for polluted environment.

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