Construction method of comprehensive heavy metal polluted soil ecological restoration system

A technology for ecological restoration and polluted soil, applied in the restoration of polluted soil, etc., can solve the problems of inability to reflect natural ecological restoration, large labor management costs, single governance objects, etc., to reduce the possibility of pollution spread and pollution, and the structure of the ecosystem Stable, low-cost results

Inactive Publication Date: 2016-08-17
NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] At present, the use of plants to remediate heavy metal-contaminated soil still has the following problems: 1) A single plant is often used for heavy metal adsorption, and the treatment object is single. It requires a large manual management cost under field conditions, and the single vegetation system is poorly adapted to the environment and cannot Embody the true meaning of natural ecological restoration

Method used

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  • Construction method of comprehensive heavy metal polluted soil ecological restoration system
  • Construction method of comprehensive heavy metal polluted soil ecological restoration system

Examples

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Embodiment 1

[0030] After leveling the land in the heavy metal polluted area, excavate the artificial lake 5 and the simple ditches 7 in it, and arrange the road 8 in advance, and then divide the woody plant area 1, the shrub plant area 2, the vegetation plant area 3, and the emergent plant area 4 , and use the artificial lake area to establish floating water plant area 5;

[0031] Anti-seepage treatment for artificial lakes;

[0032] Planting willows in woody plant zone 1 ( Salix matsudana Koidz ), Birch ( Betula pendula ); Shrub Zone 2 planted with Pyracantha ( Pyracantha coccinea ), Dog Rose ( Rosa canina ); herbaceous plant zone 3 planted southeast sedum ( Sedum alfredii ), wild rape ( Brassica juncea ); plant calamus in emergent plant zone 4 ( Acorus gramineus ), rushes ( Jancus effuses ); plant water hyacinth in zone 5 of floating plants ( Eichhornia crassipes ), copper money grass ( Hydrocotyle umbellata );

[0033] After all plant areas are planted, nitrogen, ph...

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Abstract

The invention discloses a construction method of a comprehensive heavy metal polluted soil ecological restoration system. It is designed that plants serve as adsorption bodies for heavy metal so that the heavy metal can be gradually transferred into plant tissue from soil, and the heavy metal is collected in a manual clipping manner and discharged out of an ecological system. According to the construction method, an optimal growing environment is provided for construction of the ecological system mainly through early-stage soil leveling, and construction of simple canals and ditches and an artificial lake, and diversified ecological system structures are created. Woody plants, shrub plants, herb plants, emergent plants, floating plants and the like are included, and stability of the ecological system is enhanced. By means of distribution positions provided by the construction method, it can be kept that the whole ecological system can independently run, and environment influences outside a to-be-restored region are reduced. By means of the construction method, the content of the heavy metal in a soil environment can be reduced effectively, the construction cost and the schedule maintenance cost can be reduced effectively, additional ecological functions are provided, and improvement of the surrounding environment is facilitated.

Description

Technical field [0001] The invention relates to the construction of a micro-ecological environment and the restoration and treatment technology of heavy metal pollution. It specifically utilizes different types of trees, shrubs, aquatic plants and other plants, and cooperates with certain terrain transformation to realize the method of harmless treatment of heavy metal polluted soil. Background technique [0002] With the development of social economy, especially the new industrial enterprises represented by the chemical industry, the waste of raw materials and environmental pollution will inevitably occur in the process of product manufacturing. Since the density of heavy metals is greater than 4.5g / cm3, they are mainly adsorbed and fixed in the soil, causing serious environmental pollution problems. [0003] Heavy metals are stable in nature and interact with organic structures in soil to form stable complexes, increasing the stability of heavy metals in the environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
CPCB09C1/00B09C1/105B09C2101/00
Inventor 刘军程浩戴昕宫建瑞
Owner NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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