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Method for repairing oil polluted wetland soil environment with cetylic acid intensified scirpi

A technology of oil pollution and palmitic acid, which is applied in the field of remediation of oil-contaminated wetland soil, can solve the problems that restrict the effect of phytoremediation, and achieve the effect of improving soil degradation and productivity decline, improving degradation effect, and increasing degradation speed

Inactive Publication Date: 2012-10-03
SHANGHAI UNIV
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AI Technical Summary

Problems solved by technology

Interactions between plants, root exudates, and rhizosphere microbes have a major impact on the degradation of organic pollutants and constrain phytoremediation effectiveness

Method used

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  • Method for repairing oil polluted wetland soil environment with cetylic acid intensified scirpi
  • Method for repairing oil polluted wetland soil environment with cetylic acid intensified scirpi
  • Method for repairing oil polluted wetland soil environment with cetylic acid intensified scirpi

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Experimental program
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Effect test

Embodiment example

[0019] Implementation case: open-air pot experiment of palmitic acid fortified syringa to remediate diesel-polluted wetland soil

[0020] The test period is from 2011.8.1 to 2011.10.14, a total of 75 days. The clams used in the experiment were collected from Wusongkou Wetland in Shanghai, the clean soil was collected from the East Campus of Shanghai University, and the diesel oil was purchased from Sinopec Minghe Gas Station in Baoshan District, Shanghai. After the soil is naturally air-dried and passed through a 40-mesh sieve, it is mixed evenly with a certain concentration of diesel oil to obtain soil test samples with a diesel concentration of 5000mg / kg, 10000mg / kg, 15000mg / kg and 20000mg / kg. The added concentration of palmitic acid is: the mass ratio of palmitic acid to wetland soil is 400mg: 1kg. Three parallel samples were set up for each treatment.

[0021] The sage plant samples were transplanted into the polluted soil and the seedlings were slowed down for 5 days, a...

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Abstract

The invention relates to a method for repairing an oil polluted wetland soil environment with cetylic acid intensified scirpi. The method practically comprises the application step of transplanting scirpi seedlings to oil polluted wetland soil which is added with cetylic acid, wherein the planting density is 800 to 1000 per m<2>, and the mass ratio of the cetylic acid to the wetland soil is (1000 mg to 5000 mg) to 1 kg. According to the method in which plant intensified with root exudate cetylic acid is creatively used for repairing the oil polluted wetland soil environment, the repairing effect is favorable, the environment is protected, the maneuverability is high, and the cost is low. Therefore, the method has a wide application prospect in the plant repairing field for oil polluted environments.

Description

technical field [0001] The invention relates to a method for repairing oil-polluted wetland soil, in particular to a method for strengthening syringa to repair oil-polluted wetland soil by adding root exudate palmitic acid from an exogenous source. technical background [0002] As one of the most important fuels and chemical raw materials, petroleum plays an important role in the fields of transportation, chemical industry, equipment manufacturing and metal processing. However, it is reported that about 800,000 to 1,000,000 tons of oil enter the environment every year through various methods such as oil tanker leakage and oil well explosion. Petroleum is composed of linear alkanes, branched alkanes, aromatic hydrocarbons, cycloalkanes, and other additives. When it enters the soil, it will destroy soil enzyme activity, change the structure of soil microbial communities, and endanger human health. [0003] Phytoremediation uses plants and their rhizosphere microorganisms ...

Claims

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Application Information

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IPC IPC(8): B09C1/00
CPCY02A40/22
Inventor 刘晓艳魏静张新颖柴文波王传花王倩李辈辈李红兵夏婧李欣
Owner SHANGHAI UNIV
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