Method for determining ecological safety threshold of heavy metal in chemical engineering area

An ecological safety, heavy metal technology, applied in the field of soil ecology, can solve problems such as pollution

Inactive Publication Date: 2015-06-24
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0004] At present, in view of the technical problems of soil heavy metal pollution in my country's chemical industry areas, the ecological safety thresholds of relevant soil heavy metals (lead, chromium) have not been proposed to effectively evaluate the soil ecological risks caused by heavy metal pollutants, and to build a sui...

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  • Method for determining ecological safety threshold of heavy metal in chemical engineering area
  • Method for determining ecological safety threshold of heavy metal in chemical engineering area
  • Method for determining ecological safety threshold of heavy metal in chemical engineering area

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Embodiment Construction

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] For a long time, my country has not paid enough attention to the damage to the soil ecological environment caused by heavy metal pollution, especially the serious lack of soil ecological risk assessment techniques and methods, and the basic data based on the characteristics of species and soil types in my country is very scarce. The method of soil heavy metal ecological security threshold in the region can effectively evaluate the soil environmental quality evaluation and soil ecological risk through the determined soil heavy metal ecological security threshold, which is obviously unfavorable to the management of soil environmental quality and the sustainable development of land in my country.

[0041] In the embodiment of the presen...

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Abstract

The invention discloses a method for determining an ecological safety threshold of heavy metal in chemical engineering areas. The method comprises the following steps: A1, collecting biological toxicity data; A2, screening the collected biological toxicity data according to the preset screening strategy; A3, determining whether the screened biological toxicity data quantity meets a preset data amount threshold; if it is, implementing step A4; and otherwise, supplementing biological toxicity data through the ecotoxicological test, and then implementing the step A4; and A4, based on the screened biological toxicity data, or screened toxicity data and biological toxicity data supplemented by ecotoxicological test, determining the ecological safety threshold of soil heavy metal in the chemical engineering area. The method of the invention can effectively evaluate the soil ecological risk caused by heavy metal pollutants.

Description

technical field [0001] The invention relates to soil ecological technology, in particular to a method for determining the ecological safety threshold of soil heavy metals in a chemical industry area. Background technique [0002] With the rapid development of social economy, the global demand for metals is also increasing, making the mining and smelting of metal deposits present a geometric growth trend. The heavy metals used in large quantities enter the soil through various channels, causing pollution to the soil environment and posing a serious threat to soil ecological security and human health. For example, although the construction and planning of a large number of industrial parks has ensured the organic integration of different enterprises, the aggregation of a large number of enterprises and the discharge of industrial wastewater and liquid waste have also brought certain pressure on the ecological environment of industrial parks and surrounding areas. Especially i...

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Application Information

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IPC IPC(8): B09C1/00
Inventor 刘征涛王婉华王晓南陈丽红
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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