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Fertility improvement-growth promotion-toxicity reduction treatment and detection method for organically-contaminated farmland soil

A technology of organic pollution and treatment method, applied in the field of soil remediation, can solve the problem of inability to remove toxic and pollutants in the soil, achieve good soil remediation effect and promote plant growth

Active Publication Date: 2018-08-17
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single fertilization method cannot remove toxic and pollutants in the soil

Method used

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  • Fertility improvement-growth promotion-toxicity reduction treatment and detection method for organically-contaminated farmland soil
  • Fertility improvement-growth promotion-toxicity reduction treatment and detection method for organically-contaminated farmland soil
  • Fertility improvement-growth promotion-toxicity reduction treatment and detection method for organically-contaminated farmland soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for fertilizing, promoting growth and detoxifying organically polluted farmland soil. The method is to first air-dry the soil to be tested, and then sieve to obtain dry soil particles; then combine the dry soil particles with reagent packs, straw particles, Mix nitrogen, phosphorus and potassium fertilizers according to a certain ratio to obtain a dry mixture; add distilled water to the dry mixture until the water content is 60%, stir evenly and let it stand for 20 days to remove polycyclic aromatic hydrocarbons and organic chlorine in the soil pesticide. After the treatment, it can effectively remove polycyclic aromatic hydrocarbons and organochlorine pesticides in the soil, increase soil organic matter and nitrogen, phosphorus and potassium, and have a growth-promoting effect on crops planted later. Polycyclic aromatic hydrocarbons are naphthalene, acenaphthylene, acenaphthene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, Benzo[b]fluo...

Embodiment 2

[0031] A method for fertilizing, promoting growth and detoxifying organically polluted farmland soil. The method is to first air-dry the soil to be tested, and then sieve to obtain dry soil particles; then combine the dry soil particles with reagent packs, straw particles, Mix nitrogen, phosphorus and potassium fertilizers according to a certain ratio to obtain a dry mixture; add distilled water to the dry mixture until the water content is 60%, stir evenly and let it stand for 20 days to remove polycyclic aromatic hydrocarbons and organic chlorine in the soil pesticide. After the treatment, it can effectively remove polycyclic aromatic hydrocarbons and organochlorine pesticides in the soil, increase soil organic matter and nitrogen, phosphorus and potassium, and have a growth-promoting effect on crops planted later. Polycyclic aromatic hydrocarbons are naphthalene, acenaphthylene, acenaphthene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, Benzo[b]fluo...

Embodiment 3

[0036] A method for fertilizing, promoting growth and detoxifying organically polluted farmland soil. The method is to first air-dry the soil to be tested, and then sieve to obtain dry soil particles; then combine the dry soil particles with reagent packs, straw particles, Mix nitrogen, phosphorus and potassium fertilizers according to a certain ratio to obtain a dry mixture; add distilled water to the dry mixture until the water content is 60%, stir evenly and let it stand for 20 days to remove polycyclic aromatic hydrocarbons and organic chlorine in the soil pesticide. After the treatment, it can effectively remove polycyclic aromatic hydrocarbons and organochlorine pesticides in the soil, increase soil organic matter and nitrogen, phosphorus and potassium, and have a growth-promoting effect on crops planted later. Polycyclic aromatic hydrocarbons are naphthalene, acenaphthylene, acenaphthene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, Benzo[b]fluo...

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Abstract

The invention discloses a fertility improvement-growth promotion-toxicity reduction treatment and detection method for organically-contaminated farmland soil, and belongs to the technical field of soil remediation. The fertility improvement-growth promotion-toxicity reduction treatment and detection method for the organically-contaminated farmland soil comprises the steps that after being air-dried, the to-be-detected farmland soil is screened through a sieve and mixed with reagent bags, crushed organic materials and fertilizer, and then the humidity of the oil is maintained for a period of time; and after treatment, polycyclic aromatic hydrocarbon and organo-chlorine pesticide in the soil can be removed, the content of organic matter, nitrogen, phosphorus and potassium in the soil can beincreased, and growth of crops planted in the later stage can be promoted. The removal rate of total polycyclic aromatic hydrocarbon, the removal rate of total hexachlorocyclohexane and the removal rate of total DDT respectively reach 45.07%, 71.00% and 71.16%, the content of total nitrogen and the content of total potassium are increased to 0.43 g / kg and 16.97 g / kg, and the content of organic matter is increased to 11.98% to the maximum extent. In conclusion, the fertility improvement-growth promotion-toxicity reduction treatment and detection method for the organically-contaminated farmlandsoil has a good soil remediation effect and can also promote the growth of plants.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a treatment and detection method for fertilization-promoting growth-attenuation of organic polluted farmland soil. Background technique [0002] Soil is an important component of the ecosystem and the basis for human survival. However, with the development of modern industry and agriculture, and people's lack of awareness of environmental protection, a large amount of waste gas and waste water are improperly discharged into the soil system, directly or indirectly causing soil pollution, endangering the environment and human health. Polycyclic aromatic hydrocarbons (PAHs) are a common high-risk organic pollutant in soil pollution. It is now found that there are as many as several hundred kinds of known polycyclic aromatic hydrocarbons (PAHs), among which 16 kinds of PAHs are due to the "three causes" effect of significant carcinogenicity, teratogenicity and m...

Claims

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Application Information

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IPC IPC(8): B09C1/08A01B77/00G01N30/89
CPCA01B77/00B09C1/08G01N30/89
Inventor 高彦征张晓昉王建
Owner NANJING AGRICULTURAL UNIVERSITY
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