Permeable method for remediation of underground water pollution of landfill and polluted site

Abstract

The invention discloses a permeable method for repairing underground water pollution of a landfill and a polluted site, which comprises the following repairing steps: S1, mounting a reaction wall: firstly, mounting a special permeable reaction wall structure which is different from a traditional single-layer permeable reaction wall, and the reaction wall in the repairing method is of a triple composite structure, therefore, the effect of triple filtration can be realized when underground sewage passes through. By arranging a special triple filtration structure, the triple permeation filtration effect on underground water pollution can be achieved, due to the fact that the reaction walls provided with different reaction media are combined, combined type remediation can be achieved, the first filtration is heavy metal component filtration, the second filtration is adsorption and precipitation filtration, and the remediation efficiency is improved. According to the combined remediation method, the treatment range of the sewage is well expanded, the pollutants in the sewage can be comprehensively treated, the efficient remediation effect is achieved, and the combined remediation method has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of groundwater treatment, in particular to a permeable method for groundwater pollution restoration in landfills and polluted sites. Background technique [0002] Groundwater pollution mainly refers to the phenomenon that human activities cause changes in the chemical composition, physical properties and biological characteristics of groundwater, resulting in a decline in quality. The strata below the surface are complex, and the flow of groundwater is extremely slow. Therefore, groundwater pollution is slow, difficult to detect and difficult to treat. The permeable reaction wall technology can be used in the treatment and restoration of it, which is a commonly used in-situ treatment technology in groundwater restoration, and the groundwater pollution plume can be intercepted and repaired through the permeable reaction wall. [0003] When the groundwater pollution restoration currently on the market uses per...

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Problems solved by technology

[0003] When the groundwater pollution restoration on the market uses permeable reaction walls for treatment, it is also necessary to install corresponding reaction walls for the type of sewage. This kind of restoration method is likely to cause a narrow repair range in the actual application process. , once the content of pollutants in the sewage is complex, the restoration effect is prone to be poor, and the restoration of underground sewage treatment is not thorough enough, and there are certain limitations in application.

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