Renovation method for plant in soil of zinc-cadmium combined pollution

A technology for compound pollution and phytoremediation, which is applied in the field of soil remediation using plants and can solve problems such as remediation of zinc and cadmium compound polluted soil.
CN100518970CInactive Publication Date: 2009-07-29INST OF SOIL SCI CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF SOIL SCI CHINESE ACAD OF SCI
Publication Date
2009-07-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A phytoremediation method for zinc-cadmium composite polluted soil is characterized in that the sedum with ore is cultivated in the zinc-cadmium composite contaminated soil area to be treated, and the harvested sedum with ore is harvested and transferred every year. In order to achieve the purpose of efficient management, in terms of cultivation and management, it can be harvested twice a year in July and November; it can also be used as an intercropping of Sedum sedum and Haizhou Sedum.
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Description

1. Technical field

[0001] The invention belongs to the regeneration technology of polluted soil in the field of agricultural soil, in particular to a technology of using plants for soil restoration. 2. Background technology

[0002] Soil pollution is a global environmental problem, especially in developing countries. As an important part of environmental elements, the protection and sustainable use of soil resources is particularly important for a country with a population of 1.3 billion, rapid socio-economic development and a fragile ecological environment. However, whether in our country or abroad, the deterioration of the ecological environment and health threats caused by soil pollution are not slowing down but intensifying. According to the Bulletin on the State of the Environment in China in 2000: "Sampling and monitoring of harmful heavy metals in the soil of 300,000 hectares of basic farmland protection areas, of which 36,000 hectares of soil heavy metals exceeded t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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