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Method for repairing contaminated soil by using natural pore soil-conserving and planting device

A planting and natural technology, applied in the restoration of polluted soil, etc., can solve the problems of slow plant growth, long repair time, low repair efficiency, etc., and achieve the effect of avoiding death, improving efficiency and avoiding secondary pollution

Active Publication Date: 2014-06-18
湖南晨露环保科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The bioremediation method is to use degrading bacteria and plants suitable for oil-polluted environments (such as Chlorophytum, alfalfa, etc.) to repair oil-contaminated soil. The bioremediation method avoids secondary pollution during the repair process and the cost is relatively low. It is an environmentally friendly and economical method. The repair method, the disadvantage is that the repair time is longer
[0004] There are certain shortcomings in using plants to absorb harmful components in oil-contaminated soils. This is because plants grow slowly in oil-contaminated soils, or even fail to survive, so there is a problem of low repair efficiency in practical applications.

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  • Method for repairing contaminated soil by using natural pore soil-conserving and planting device

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Embodiment Construction

[0015] As shown in the figure: 1 in the figure is the loofah of the natural porosity soil conservation planting device made of dried loofah; 2 is the nutrient soil filled in the device, and 3 is the plant fibrous root growing through the device; it is used to pollute the soil A natural pore soil-preserving planting device, take (cross-section) a section of loofah 1 (more than 5cm in diameter), and the length is 6, 10, or 15cm; Tube bundles, or the fruit of other natural porous plants are peeled, dried, and cavity taken; loofah fiber tubes are formed after adding nutrient soil 2 for plant seedling growth, with a natural porous network structure and built-in nutrient soil for plant seedling growth. The nutrient soil is mixed with an appropriate amount of microorganisms that pollute and decompose pollutants (the weight ratio is 1-5% of the nutrient soil). The nutrient soil is kept dry and the seeds of the pollution-resistant plants can be implanted and become a commodity. Just w...

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Abstract

The invention discloses a method for repairing contaminated soil by using a natural pore soil-conserving and planting device. The method comprises the following steps: (1) selecting natural porous medium after airing, including sundried loofah sponge; (2) taking a section of sundried loofah sponge, filling by nutrient soil after taking a cavity, and planting the plant or seeds for repairing petroleum- or heavy metal-polluted soil into the natural pore soil-conserving and planting device formed by the loofah sponge, so as to ensure that the fibrous root can pass through the outside of the planting device and freely grow towards the periphery, and the length of the section of loofah sponge is 6-15cm. The plant root can absorb harmful substances such as petroleum hydrocarbon in soil, meanwhile, microorganisms on the fibrous root can degrade petroleum hydrocarbon and the like, and the planting device is planted in the repair region and prompted to grow, so that the petroleum-contaminated soil is quickly repaired. By adopting the method, the problems of low efficiency and low survival rate in the traditional repair of the petroleum-contaminated soil by the organisms are solved, the used material is a natural plant material, and secondary pollution to the repaired environment is avoided.

Description

technical field [0001] The invention belongs to the field of bioremediation environment, in particular to a method for bioremediation of soil polluted by petroleum or heavy metal ions, etc., with natural pores for soil preservation and planting. Background technique [0002] During the process of oil extraction, transportation, storage and industrial discharge of heavy metal ions, it is inevitable to pollute the soil. Petroleum-contaminated soil will cause extremely great harm to the ecological environment of the surrounding areas, and at the same time, the polluted soil will also cause considerable harm to human health through the food chain. The remediation of oil-contaminated soil has become an important environmental problem to be solved in recent years. The remediation of oil-contaminated soil is mainly divided into three methods: physical, chemical and biological. Among them, although the physical and chemical methods have a faster remediation rate, they often have a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
Inventor 张菁菁
Owner 湖南晨露环保科技发展有限公司
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