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Method for repairing oil-contaminated wetland by using plant salix matsudana

A wetland and oil pollution technology, applied in the restoration of polluted soil, climate change adaptation and other directions, can solve problems such as air pollution, and achieve the effect of small amount of engineering, low technical requirements and high degradation effect.

Inactive Publication Date: 2011-09-14
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But diesel oil contains more impurities than gasoline, and it is more likely to produce soot when it burns, causing air pollution

Method used

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  • Method for repairing oil-contaminated wetland by using plant salix matsudana
  • Method for repairing oil-contaminated wetland by using plant salix matsudana
  • Method for repairing oil-contaminated wetland by using plant salix matsudana

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: dry willow phytoremediation of diesel polluted soil

[0022] Plant a willow plant (50cm high) in the soil, set up three parallel samples, and then directly put the oil-contaminated soil (blank) and the experimental sample outdoors. According to the abundance and shortage of soil moisture, water with a salinity of 0.2% is poured from time to time to saturate the soil with water. The experiment lasted 60 days. After 30 days and 60 days, soil samples were taken to measure the remaining diesel content, and their degradation rate and removal rate were calculated.

[0023] Experimental results: Willow has a strong tolerance to diesel pollutants. During the experiment on oily soil with a concentration of 10,000 mg / kg diesel oil, no toxic characteristics were found, and the plants grew well. From figure 1 It can be seen from the remaining residual oil in the soil samples after 30 days and 60 days that the dry willow has a high degradation effect on the diesel in...

Embodiment 2

[0024] Example 2: Oleophilic bacteria and fungi fortified willow to remediate diesel pollution

[0025] The original petroleum-contaminated soil used in the test was taken from the Huangpu River-Yangtze River estuary wetland soil, and the oil-loving bacteria and oil-loving fungi used in this experiment were sieved from it.

[0026] (1) culture medium

[0027] Screening Bacteria Medium: K 2 HPO 4 1g, KH 2 PO 4 1g, NaCl 0.5g, NH 4 (SO 4 ) 2 0.5g, MgSO 4 0.2g, KNO 3 0.2g, CaCl 2 0.02g, NaCl 0.5g, FeCl 3 Trace amount, distilled water 1000ml, pH 7.5. After sterilization, 10 g of diesel oil was added aseptically. Add 18.0g of agar to make bacterial diesel plate.

[0028] Screening media for fungi: NaNO 3 2.0g, K 2 HPO 4 1.0g, KCl 0.5g, MgSO 4 ·7H 2 O 0.5g, FeSO 4 ·7H 2O 0.008g, distilled water 1000ml, pH 7.0. After sterilization, 10 g of diesel oil was added aseptically. Add 18.0g of agar to make a fungus diesel plate.

[0029] Enrichment medium (g / L)...

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Abstract

The invention relates to a method for repairing an oil-contaminated wetland by using plant salix matsudana. The method specifically comprises the following steps of: planting the salix matsudana on the oil-contaminated wetland, wherein the plant intensity is 2 to 3 plants / m<2>. Compared with the traditional method, the method for repairing the oil-contaminated wetland has the advantages of low investment, small work amount, low technical requirement and the like, and cannot cause secondary pollution. The repairing process does not damage the ecological environment of soil, contributes to improving the phenomena of soil degradation, productivity decline and the like caused by oil pollution, and restores and improves the biodiversity of the area. The method has good ecological benefit and economic benefit.

Description

technical field [0001] The invention relates to a method for repairing oily wetlands, in particular to a method for restoring oily wetlands by using plant willow. Background technique [0002] In recent years, the frequent occurrence of oil spill pollution has brought serious pollution problems. Oil has high viscosity and strong viscosity. They change the physical and chemical properties of soil and seriously affect the air permeability and water permeability of soil. Some teratogenic substances in oil Carcinogens can also directly endanger human health through bioaccumulation in the food chain. Diesel is an important petroleum refining product. It is widely used as fuel for automobiles, tanks, airplanes, tractors, railway vehicles and other vehicles or other mechanical devices, and can also be used for power generation and heating. Diesel is more efficient, and if it replaces gasoline in large quantities, it can reduce oil consumption and carbon dioxide emissions. But co...

Claims

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Application Information

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IPC IPC(8): B09C1/00B09C1/10
CPCY02A40/22
Inventor 刘晓艳王珍珍王君张新颖刘发辉陈丽莎刘珊珊田翔瞿娟
Owner SHANGHAI UNIV
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