Multi-section distributed treatment type oily soil remediation rod

Abstract

The invention discloses a multi-section distributed treatment type oily soil remediation rod. The invention belongs to the technical field of soil remediation. A multi-stage treatment method is adopted; the remediation treatment on the soil with different depths is realized; annular oil absorption cotton positioned at the upper end part of a burying rod is used for absorbing oil stains on the soilsurface; the oil stains are collected in a hollow oil falling cavity through an oil guide curtain; an upper hemisphere bag and a lower hemisphere bag which are filled with a hydrogen peroxide solution and ammonium bicarbonate powder are embedded into repairing balls; a hydrogen peroxide solution is decomposed to generate oxygen and water; part of water is guided into the lower hemisphere bag through a first guide-out pipe. The ammonium bicarbonate powder is damped and decomposed to generate nutrients to be introduced into the soil; moisture and oxygen which are guided into a water conveying pipe through a second guide-out pipe and a water guide cavity provide nutrients for a microbial fiber band, meanwhile, the root of the microbial fiber band is separated from the water conveying pipe after being hydrolyzed and guided out of the burying rod along with a fan-shaped embedding piece, and microbial remediation treatment is conducted on deep soil.

Description

technical field [0001] The invention relates to the technical field of soil remediation, and more specifically relates to a multi-stage distributed treatment type oily soil remediation rod. 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. [0003] Among them, the remediation of petroleum-contaminated soil is a difficult problem in soil remediation. Only in the process of petroleum exploitation, transportation, storage and accidental leakage, a large amount of petroleum hydrocarbons enter the environment, causing serious pollution of soil and groundwater. After oil enters the soil, it will destroy the soil structure, affect the permeability of the soil, reduce the ...

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Problems solved by technology

[0003] Among them, the remediation of petroleum-contaminated soil is a difficult problem in soil remediation. Only in the process of petroleum exploitation, transportation, storage and accidental leakage, a large amount of petroleum hydrocarbons enter the environment, causing serious pollution of soil and groundwater.

After oil enters the soil, it will destroy the soil structure, affect the permeability of the soil, reduce the soil quality, and the oil will stick to the root system of the plant to form a layer of mucous film, which will hinder the absorption of nutrients and water by the root system of the plant, cause the root system to rot, and affect the growth of crops The chemical groups rich in petroleum can combine with inorganic nitrogen and phosphorus and limit nitrification and dephosphorylation, thereby reducing the content of available nitrogen and phosphorus in the soil and affecting the nutrient absorption of crops

[0004] In the actual soil remediation process, physical and chemical methods are mainly used, such as adsorption method, solidification method, solvent extraction method, washing method, etc. These methods have problems such as high price, damage to soil structure and components, and secondary pollution. In addition, in the prior art, only the soil near the surface is often adsorbed, and the soil near the surface is relatively simple to treat and has a better repair effect, but for the deep soil, the repair effect is not particularly ideal

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