Method and device for evaluating long-term effectiveness of solidified/stabilized heavy metal contaminated soil remediation agent

A technology of polluted soil and evaluation device, which is applied in the restoration of contaminated soil, soil material testing, material inspection products, etc., to achieve the effects of convenient operation, shortened evaluation time, and ingenious design

Pending Publication Date: 2020-08-21
广州润方环保科技股份有限公司
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Problems solved by technology

However, in the case of simulation, how to quickly obtain the effectiveness of the corresponding curing / stabilizing restoration agent in a short period of time is a current difficulty

Method used

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  • Method and device for evaluating long-term effectiveness of solidified/stabilized heavy metal contaminated soil remediation agent
  • Method and device for evaluating long-term effectiveness of solidified/stabilized heavy metal contaminated soil remediation agent
  • Method and device for evaluating long-term effectiveness of solidified/stabilized heavy metal contaminated soil remediation agent

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Embodiment Construction

[0034] In order to describe in detail the technical content, the achieved objectives and effects of the present invention, the following description will be given in conjunction with the embodiments and the accompanying drawings.

[0035] The embodiment of the present invention is: a long-term evaluation device based on solidified / stabilized heavy metal contaminated soil remediation agent, such as figure 1 Shown, including simulated acid rain generator ( figure 1 Not shown in), conveying parts, soil packed column 3 and leaching liquid receiver ( figure 1 Not shown in).

[0036] The conveying parts include the first peristaltic pump (corrosion-resistant) and the water distributor 21 (corrosion-resistant material, about 10-15cm in diameter, and pore size distribution between 0.2-0.5mm). The first peristaltic pump is used to simulate acid rain. The acid rain in the filter is transported to the water distributor 21, and then transported to the soil filling column 3 through the water dis...

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Abstract

The invention discloses a method and device for evaluating the long-term effectiveness of a solidified/stabilized heavy metal contaminated soil remediation agent. The method comprises the steps of 1,taking soil meeting the requirements after solidified/stabilized remediation to prepare a soil simulation sample; leaching the soil simulation sample with simulated acid rain until the leacheate doesnot meet the requirements of an underground water functional area at the position of the original soil, recording the total simulated acid rain leaching amount before the leacheate does not meet the requirements, and calculating the long-term effectiveness period of the remediation technology according to the total simulated acid rain leaching amount. According to the scheme, the soil is leached through simulated rainfall, pollution indexes in the leacheate are detected, and the long-term effectiveness period is calculated. The method can be used for rapidly evaluating the long-term effectiveness of solidified/stabilized remediation of the heavy metal contaminated soil, key data such as the effective time and the remediation effect are obtained, and engineering application research is facilitated.

Description

Technical field [0001] The invention relates to the technical field of environmental protection, in particular to an evaluation method and device based on solidification / stabilization of heavy metal contaminated soil. Background technique [0002] With the rapid advancement of my country's urbanization, urban layout and industrial structure are constantly being adjusted and optimized. In the past, many enterprises with heavy pollution were moved out of densely populated urban areas, and most of the relocated industrial sites were planned as commercial or residential land. These industrial sites are often polluted to varying degrees, especially heavy metals, and the residual presence in them can easily adversely affect the organisms that are subsequently exposed. Therefore, it is urgent to carry out the remediation of heavy metal contaminated soil to ensure the safety of land. [0003] Compared with other technologies, curing / stabilization technology has the advantages of convenie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24B09C1/02
CPCG01N33/24B09C1/02
Inventor 陈俊毅陈翔欣
Owner 广州润方环保科技股份有限公司
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