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
CN104722569AInactive Publication Date: 2015-06-24CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2015-06-24
Estimated Expiration
Not applicable Β· inactive patent

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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.
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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...

Claims

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