A kind of heavy metal polluted soil elution restoration device and its restoration treatment method

Abstract

The invention discloses an eluting and repairing device for heavy metal polluted soil, which includes a frame, a driving device, a crushing device and a soil eluting device, and the crushing device includes a crushing drum and a crushing mechanism arranged inside the crushing drum , the crushing drum is placed horizontally and rotated on the frame, the soil eluting device is arranged directly below the crushing drum, and the crushed soil particles transition into the soil eluting device through the inlet and outlet, and The soil eluting device contains an eluting solvent; the soil eluting device elutes repaired soil particles. The invention provides a heavy metal-contaminated soil elution restoration device and a restoration treatment method thereof, which can fully break soil particles and elution restoration in time, thereby improving the restoration degree of soil elution restoration.

Description

technical field [0001] The invention belongs to the field of soil remediation, and in particular relates to an eluting and remediating device for heavy metal polluted soil and a remediation treatment method thereof. Background technique [0002] Soil pollution is one of the most serious environmental problems facing human society, and the remediation of contaminated soil has become a hot spot in the field of environmental remediation. Existing soil remediation technologies mainly include thermal desorption technology, electrodynamic remediation, biological remediation, solidification and stabilization remediation and soil leaching remediation. Among them, soil leaching remediation of heavy metal-contaminated soil is due to its rapid remediation, wide adaptability and thorough remediation. It has been widely studied and applied to actual restoration projects because of its characteristics, and has broad market space and development prospects. [0003] At present, the leachin...

AI Technical Summary

Problems solved by technology

Inorganic eluent is a method of eluting heavy metals from soil through the ion exchange of water, inorganic acid, and inorganic salt solution. Fully broken soil and full mixing of soil and elution solvent are the key to elution repair, which directly affect the degree of elution repair. However, in the current soil elution repair process, it is necessary to separate the soil particles between different equipment It takes a long period of time for multiple transfers, and at the same time, after the broken soil is not eluted and repaired in time and accumulated for a long time, the degree of soil repair will also be reduced.

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