Method for repairing oil polluted soil using ornamental plant balsamine

Abstract

The invention relates to phytoremediation technology for organic poison polluted soil, in particular to a method for restoring petroleum hydrocarbon polluted soil by utilizing a plant, namely balsamine. The balsamine is annual herbal flower, and the biomass is as high as 40 to 100 centimeters; petroleum hydrocarbon pollutant in the soil is degraded through the growth process, the development process, the blooming process and the fructification process of plant, namely the whole growth phase of the plant due to the action of root exudates and rhizosphere microorganisms of the plant and soil enzyme, and the petroleum hydrocarbon pollutant which pollutes the soil can be continuously degraded until the pollutant content of the soil meets the environmental safety standard by repeated planting of the plant and repeated implementation of the processes. The method has the advantages of small damage to the environment, no need of treatment of the scene, no damage of the physicochemical properties of the soil, no secondary pollution, low cost, suitability for large-scale operation, pollution treatment and simultaneous environment beautification and so on.

Description

technical field [0001] The invention relates to a phytoremediation technology for soil polluted by organic poisons, in particular to a method for remediating oil-contaminated soil by using ornamental plant Impatiens. Background technique [0002] Soil is an important part of the ecosystem and one of the environmental resources on which human beings depend. However, in the past few decades, the types and quantities of toxic and harmful organic substances used by people have continued to increase, and the organic pollutants entering the soil environment have increased day by day. Soil organic pollutants not only directly lead to the decline of living organisms, but also endanger human health and safety through the soil-plant system through the food chain. The threat to the human living environment exposes humans to greater environmental risks [Document 1: Fismes, J.; Perrin-Ganier, C.; Empereur-Bissonnet, P. Soil-to-RootTransfer and Translocation of Polycyclic Arometic Hydroc...

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Problems solved by technology

However, so far, there are relatively few studies on plants capable of degrading excess petroleum hydrocarbons in soil at home and abroad; research in this area in my country is still in its infancy, and plants with independent intellectual property rights in my country for repairing petroleum hydrocarbon pollutants are just Fewer, coupled with incomplete research on agronomic traits, pest control, breeding potential, and physiology, seriously affects its application in actual restoration [Document 16: Ute K. Phytoremediation: novel approaches to cleaning up polluted soils. Current Opinion in Biotechnology , 2005, 16: 133-141.]

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