Device for rapid evaluation of renovation effect of contaminated soil and method thereof

Abstract

The invention relates to contaminated soil restored effect fast estimation, in particular to a device for contaminated soil restored effect fast estimation and the method thereof. The invention is characterized in that an experimental facility comprises a liquid water content adjusting tray and an avoidance chamber; the liquid water content adjusting tray is provided with flower mud inside, contaminated soil and clean soil are respectively arranged inside branch chambers of the avoidance chamber made of clapboards which are waterproof, and the clean soil and the contaminated soil are arranged at internals; the avoidance chamber is horizontally arranged above the liquid water content adjusting tray, rainworm escaping holes are arranged on the clapboards and around the branch chambers in the middle; moisture control holes are arranged at the bottom of a rainworm avoidance chamber.

Description

technical field [0001] The invention relates to a rapid evaluation of the remediation effect of polluted soil, in particular to a device and method for rapid evaluation of the remediation effect of polluted soil. Background technique [0002] Evaluation of the remediation effect of contaminated soil is a key link in the control of soil environmental pollution [Document 1: Principles and Methods of Contaminated Soil Remediation, edited by Zhou Qixing, 2004 Beijing: Science Press]. Relying solely on chemical methods for diagnosis, in many cases, cannot fully and scientifically characterize the overall quality characteristics of the soil environment, sometimes leading to some wrong conclusions. Soil environmental pollution ecotoxicology diagnosis technology complies with this objective requirement, and thus has also been developed rapidly. The migration, transformation and degradation of pollutants in the soil environment undergo a series of complex physical, chemical and biol...

AI Technical Summary

Problems solved by technology

For the evaluation of the remediation effect of contaminated soil, it is obvious that the acute toxicity test of earthworms, which is limited to the determination of the toxicity of high-concentration chemical substances, is no longer applicable. In contrast, the earthworm avoidance response is simple and fast (only 3 days), with good reproducibility and high sensitivity [Document 5: Bu Chunhong, Gao Dawen. 2006. Progress in the application of earthworm avoidance response in ecotoxicology research. Journal of Agricultural Environmental Science. 25:799-804]

[0004] The current experimental device using earthworm avoidance response usually uses a single box [Document 6: Tai Peidong, Li Peijun, Xu Huaxia. A rapid diagnosis method and experimental device for soil health quality. China: G01N33 / 24.2004.01.21], will A single box is divided into two chambers, clean soil and polluted soil are placed in the two chambers of the box, and earthworms are put into the box by humans, which fails to make full use of the ability of earthworms to choose and avoid, and the human subjective influence factors are relatively large; One kind of soil sample is used for experiments, repeated experiments and parallel experiments need to be carried out in other boxes, because the water and light conditions in different boxes are difficult to keep completely consistent, resulting in poor repeatability; earthworms can only move on the bottom of the two chambers of the box, Possibility of free movement is reduced; the moisture content of the soil in the avoidance tank is not adjustable

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