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Polycyclic aromatic hydrocarbon-heavy metal contaminated soil leaching device and restoration system

A technology for contaminated soil and polycyclic aromatic hydrocarbons, applied in the field of contaminated soil restoration, can solve the problems of increasing the difficulty of restoration, pollution effects and mechanisms, and achieves low cost, no hidden danger of heavy metal migration, and good results

Inactive Publication Date: 2018-12-28
上海松沅环境修复技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with single pollution, compound pollution is obviously more complicated, and various interactions will occur between pollutants, which are expressed as synergy, antagonism and additive effects; these interactions will complicate the pollution effect and mechanism, thus Increase the difficulty of repair

Method used

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  • Polycyclic aromatic hydrocarbon-heavy metal contaminated soil leaching device and restoration system
  • Polycyclic aromatic hydrocarbon-heavy metal contaminated soil leaching device and restoration system

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Such as figure 1 As shown, the polycyclic aromatic hydrocarbon-heavy metal contaminated soil washing device described in this specific embodiment comprises a tank body 1, a feed inlet 2, a stirring paddle 3, a spray port 4 and a discharge port 5, and the tank body 1 is equipped with a stirring paddle 3, and the top of the tank body 1 is provided with a feed port 2 and a spray port 4, and the bottom of the tank body 1 is provided with a discharge port 5....

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Abstract

The invention discloses a polycyclic aromatic hydrocarbon-heavy metal contaminated soil leaching device and restoration system, and belongs to the technical field of contaminated soil restoration. Thepolycyclic aromatic hydrocarbon-heavy metal contaminated soil restoration system comprises a crushing and sorting device, the leaching device, a vacuum dehydration device, a primary treatment tank and a secondary treatment tank, wherein a feed inlet of the leaching device is connected with the crushing and sorting device, and a discharge hole of the leaching device is connected with the vacuum dehydration device. The polycyclic aromatic hydrocarbon-heavy metal contaminated soil restoration system adopts ectopic soil leaching, wherein ectopic soil leaching specifically comprises the steps of digging out contaminated soil, then transferring pollutants in a soil solid phase to a liquid phase through ion exchange, precipitation, adsorption, chelation and the like by using an eluting agent, and then treating a leaching solution containing the pollutants. The polycyclic aromatic hydrocarbon-heavy metal contaminated soil restoration system has the characteristics of short treatment period, good effect, low cost, no hidden danger of heavy metal migration and the like.

Description

technical field [0001] The invention relates to a polycyclic aromatic hydrocarbon-heavy metal polluted soil leaching device and a restoration system, belonging to the technical field of restoration of polluted soil. Background technique [0002] With the rapid development of industrialization and urbanization, the "three wastes" in the environment are increasing day by day, and serious environmental pollution problems have also occurred. Among them, the pollution of the soil environment presents the characteristics of extensive sources, complex types, huge quantities, wide area distribution, and strong toxicity, which determines the complexity and arduous task of the soil environment repair process. [0003] Compound pollution refers to the simultaneous pollution of the same medium (soil, water, atmosphere, organisms) by multiple elements or chemicals, that is, multiple pollutants. The pollution that occurs in nature may be dominated by a certain element or a certain chemic...

Claims

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Application Information

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IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 王盼亮王书琪顾建忠
Owner 上海松沅环境修复技术有限公司
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