Bioremediation process for soil contaminated by landfill leachate

Abstract

The invention discloses a bioremediation process for soil contaminated by landfill leachate, and belongs to the technical field of soil bioremediation. The bioremediation process for the soil contaminated by the landfill leachate comprises the steps of analysis of contaminated soil, plant cultivation, animal breeding, microorganism cultivation, transplanting and transportation, putting for contaminated land, supplementation and maintenance and soil re-utilization. Cultivation soil can be transferred to the soil of the contaminated land through a degradable transplanting device, the degradabletransplanting device can be automatically degraded under the effects of microorganisms and has no adverse impact on the environment, three soil bioremediation technologies of phytoremediation, animalremediation and microbial remediation can be comprehensively utilized for remediation of the soil contaminated by the landfill leachate, the three soil remediation technologies can promote one anotherto exert the best effect, and the improvement of the remediation effect is facilitated; compared with other soil remediation technologies, the labor and equipment investment can be reduced, and the treatment of soil contamination of complex types is better facilitated.

Description

technical field [0001] The invention relates to the technical field of soil bioremediation, in particular to a soil bioremediation process for landfill leachate pollution. Background technique [0002] Soil remediation is a technical measure to restore the normal function of polluted soil. In the soil remediation industry, there are more than one hundred existing soil remediation technologies, and there are more than ten commonly used technologies, which can be roughly divided into three methods: physical, chemical and biological. Since the 1980s, many countries in the world, especially developed countries, have formulated and carried out plans for the treatment and restoration of contaminated soil, thus forming a new soil restoration industry. [0003] There are many types of soil pollution, such as industrial sludge, garbage for agriculture, sewage irrigation, pollutant deposition in the atmosphere, heavy use of heavy metal-containing mineral fertilizers and pesticides, e...

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Problems solved by technology

[0003] There are many types of soil pollution, such as industrial sludge, garbage for agriculture, sewage irrigation, pollutant deposition in the atmosphere, heavy use of heavy metal-containing mineral fertilizers and pesticides, etc. Another type is the soil under the garbage dump. Garbage contains complex components, and also contains some liquid. After the soil under the garbage dump passes through the garbage leachate, it will cause soil pollution.

[0004] Generally, the area of ​​garbage is large, and the pollution is serious. If the cost of physical restoration or chemical restoration is too high, a large number of personnel are required to operate for a long time, and large-scale equipment is also required, and the effect is not good. Instead, biological restoration is used. Technology can better solve this problem. Bioremediation technologies generally include phytoremediation and animal remediation. In the prior art, there is no better process and device that can perform multiple bioremediation at the same time.

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