Foam composite repair material for treating peculiar smell of polluted soil and treatment method

Abstract

The invention relates to a foam composite repair material for treating peculiar smell of polluted soil and a treatment method. The foam composite repair material is prepared from the following components in parts by weight: 1-10 parts of a surfactant, 0.1-1 part of a thickening agent, 1-5 parts of a stabilizer, 1-5 parts of an oxidizing agent, 1-5 parts of nanoparticles and 59-87.9 parts of water. The polluted soil peculiar smell treatment method comprises the following steps: 1) dispersing a thickening agent into water, and then sequentially adding a surfactant and a stabilizer to obtain a mixed solution; (2) adding the mixed solution, an oxidizing agent and nano-particles into a foam spraying device, and uniformly mixing; and (3) foam is sprayed out through a foam spraying device, and the polluted soil with the peculiar smell is covered with the foam. Compared with the prior art, the method can treat the peculiar smell of the polluted soil and reduce diffusion of peculiar smell substances in the polluted soil to the atmosphere.

Description

technical field [0001] The invention belongs to the technical field of contaminated soil treatment, and relates to a foam composite restoration material and a treatment method for treating the peculiar smell of polluted soil. Background technique [0002] With the rapid development of industry and the acceleration of urbanization, the problem of site pollution is becoming more and more serious. Among them, site odor pollution is a typical nuisance pollution and the main complaint type of residents. It mainly affects people's psychology through people's sense of smell and makes people It produces unpleasant feeling and is harmful to the human body. [0003] At present, when remediating organically polluted sites, due to the disturbance of the site due to soil excavation and transportation, the volatilization and leakage of organic pollutants will produce odors that disturb the residents, causing secondary environmental pollution, and there is no effective collection method. ...

AI Technical Summary

Problems solved by technology

[0009] Although the above-mentioned inhibitors block the volatilization of the odor of the polluted soil, the organic matter with the odor is not completely decomposed, but remains in the soil, which may aggravate the pollution of the soil

In addition, during the preparation process of these inhibitors, some need to make the temperature reach 80 ℃, and the adsorbent that absorbs the odor will also cause a burden to the soil.

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