A method for remediating petroleum hydrocarbon-contaminated soil by using wild ornamental plant Popona

Abstract

A method for repairing petroleum hydrocarbon-contaminated soil by using the wild ornamental plant Popona, using the absorption and degradation of plants and microorganisms in the rhizosphere to degrade the petroleum hydrocarbons in the soil. The method of transplanting, planting Po Po Na in petroleum hydrocarbon-contaminated soil respectively, measuring the maximum water holding capacity of the soil, and watering once a day according to 60% of the maximum water holding capacity; Remove it as a whole; repeat planting Popona in the above soil, continuously reduce the concentration of petroleum hydrocarbon pollution in the soil, until the petroleum hydrocarbon content in the soil reaches the national environmental standards or ecological security indicators. The advantages of this method are: low cost, small amount of engineering, no secondary pollution to the environment, and no damage to the soil structure. It is an efficient and economical green restoration technology, which fully realizes the unity of ecological benefits, environmental benefits and economic benefits. .

Description

technical field [0001] The invention relates to an environmental restoration technology for oil-polluted soil, in particular to a method for repairing oil-polluted soil by using the wild ornamental plant Popona. Background technique [0002] Soil is one of the most basic environmental elements for human survival, and it is also an important activity place for microorganisms, plants and animals. While soil provides a resource base for human agricultural production and urban development, it also has to carry various pollutants discharged by humans (Reference 1: Zhou Qixing. 2006. The latest progress in research on soil environmental pollution chemistry and chemical restoration. Environmental Chemistry, 03:257-265). According to statistics, in the past 40 years, at least billions of tons of harmful substances have been released into the soil around the world, and the industrial "three wastes" pollution of my country's farmland alone has exceeded 100 million mu (reference 2 Zho...

AI Technical Summary

Problems solved by technology

However, the research on the use of wild ornamental plants to remediate oil-contaminated soil is in its infancy, and the remediation of wild ornamental plants under saline-alkali stress has not been reported.

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