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Application of sinosenecio oldhamianus in restoring copper pollution of mining soil and sludge

A technology of copper pollution and heavy metals, applied in the restoration of polluted soil, biological sludge treatment and other directions, can solve problems such as insufficient plant variety resources, and achieve the effects of low cost, easy survival and strong vitality

Inactive Publication Date: 2011-04-27
SICHUAN AGRI UNIV +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the purpose of the present invention is exactly to the above-mentioned problem that can be used for the plant variety resource shortage of soil heavy metal polluted phytoremediation, and the application of a kind of new plant variety Pu Ergen in the heavy metal copper pollution of repairing mine soil and sludge is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Present embodiment is the application of Puergen root in repairing the heavy metal copper pollution of mine soil, and its concrete practice is:

[0018] Using direct transplanting method, under natural conditions, plant Puergen (Sinosenecio oldhamianus) in the soil polluted by heavy metals in the copper mining area of ​​Baofeng Township, Yingjing County, Sichuan Province; Water, not subject to special management.

[0019] Harvest the aerial part of plant after 3 months, measure wherein the weight percent content of copper is respectively 486.2mg kg -1 . The stubble part continues to grow and harvest, and such continuous extraction can effectively repair the heavy metal copper pollution in the soil.

Embodiment 2

[0021] Present embodiment is the application of Puergen root in the heavy metal copper pollution of remediation sludge, and its concrete practice is:

[0022] Using the method of direct seeding under natural conditions, the plant Puergen (Sinosenecio oldhamianus) of the genus Puergen (Sinosenecio oldhamianus) was planted in the sludge polluted by heavy metals in the Baobaidang Copper Mine Area, Ya'an City, Sichuan Province; No special management is performed.

[0023] After 85 days, the above-ground parts of the plants were harvested, and the weight percentages of Cu heavy metals were measured to be 513.8 mgkg-1. The stubble part continues to grow and harvest, and such continuous extraction can effectively repair the heavy metal copper pollution in the soil.

[0024] Above-mentioned embodiment 1 and 2 can be seen, and the present invention can obviously absorb the copper in the soil by planting the root of the purpurea in the heavy metal polluted mine soil or the sludge, beca...

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Abstract

The invention discloses application of sinosenecio oldhamianus in restoring copper pollution of mining soil and sludge, which is characterized by planting the sinosenecio oldhamianus in the copper-polluted mining soil or sludge. With the characteristic of enriching the copper, the sinosenecio oldhamianus is planted in the mining soil or sludge and can absorb and accumulate the copper, and most ofthe sinosenecio oldhamianus is transferred to the overground part to achieve the aim of restoring copper pollution of the mining soil and sludge. As the sinosenecio oldhamianus does not need special management in the growth process, the cost is low and the operability is strong. Meanwhile, a new plant resource variety is developed for restoring the heavy metal-polluted plants in the mining soil and sludge.

Description

technical field [0001] The invention relates to the technical field of remediation of heavy metal pollution in the environment, in particular to the application of plant Puergen in remediation of heavy metal copper pollution in mine soil and sludge. Background technique [0002] Copper is not only an essential micronutrient element for plant growth and development, but also a heavy metal element that pollutes the environment. When the copper concentration in the soil increases to a certain threshold, the growth and development of ordinary plants will be hindered, and serious ones can cause plant death. Copper heavy metal pollution has the characteristics of concealment, long-term and irreversibility. Its pollutants have poor mobility in the medium, long residence time, cannot be degraded by microorganisms, and can be transmitted through the food chain, which will eventually affect human health and cause immeasurable impact. . [0003] The use of heavy metal hyperaccumulato...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00C02F11/02
Inventor 张世熔王琼瑶徐小逊李婷吴德勇
Owner SICHUAN AGRI UNIV
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