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Method for repairing diesel oil polluted soil by fringed iris herbs

A technology of polluted soil and pansies, which is applied in the restoration of polluted soil, etc., can solve the problems of seldom reported total petroleum hydrocarbons, and achieve the effects of easy management and cultivation, no secondary pollution, and improved soil environment

Inactive Publication Date: 2013-08-14
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, phytoremediation has mostly focused on inorganic and organic soil pollution, and there are few reports on the screening of flowers that can efficiently degrade total petroleum hydrocarbons in petroleum-contaminated soils.

Method used

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  • Method for repairing diesel oil polluted soil by fringed iris herbs

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Experimental program
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Effect test

Embodiment Construction

[0012] 1. Material preparation

[0013] (1) Preparation of pansies and physical and chemical properties of soil

[0014] 1) Preparation of pansies: Pansies were purchased from the greenhouse of Shanghai University, and they were planted for one month as seedlings.

[0015] 2) The soil was collected from the oil-free soil in the east area of ​​Shanghai University. The basic physical and chemical properties of the soil are: pH value, 8.3; sand, 32.2%; silt, 60.4%; clay, 7.4%; organic matter, 19.6 g / kg.

[0016] (2) Diesel oil to be tested: No. 0 diesel oil was purchased from Sinopec Shanghai Minghe Gas Station.

[0017] (3) Experimental instruments and equipment: 722-type spectrophotometer, ultrasonic cleaning machine, pH meter, analytical balance.

[0018] 2. Cultivation and fruit determination of pansies

[0019] (1) Cultivation of pansies

[0020] Transplant pansies that have been planted for one month into diesel-contaminated soil that has been added with 5,000, 10,000, ...

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Abstract

The invention relates to a method for repairing diesel oil polluted soil by fringed iris herbs. According to the method disclosed by the invention, the fringed iris herbs are planted into the diesel oil polluted soil to grow for about 104 days, one time of destructive sampling is carried out on the fringed iris herbs in a mature period, and the fringed iris herbs are properly treated, so that the degradation rate of total petroleum hydrocarbon (TPH) in the soil can be determined. When the fringed iris herbs are compared with a blank control, the degradation rate increases by 11-25 times, so that the fringed iris herbs have an excellent capability of removing diesel oil pollutants. The method disclosed by the invention has the characteristics of no damage to physical and chemical properties of the soil, no secondary pollution, simple technology, convenience in operation, low cost, high tolerance to the diesel oil polluted soil, high TPH degradation rate and the like; more importantly, the fringed iris herbs are flowers which are beautiful and have high ornamental values, so that not only the environment can be beautified, but also the fringed iris herbs have economic and ecological benefits; and therefore, the method is applicable to repair of the large-area diesel oil polluted soil and environment beautifying.

Description

technical field [0001] The invention relates to a bioremediation method for petroleum-contaminated soil, in particular to a method for remediating diesel-polluted soil by using pansies. Background technique [0002] Petroleum is a complex mixture containing a variety of hydrocarbons and a small amount of other organic substances; petroleum pollution generally refers to crude oil and petroleum primary processing products (including diesel oil, gasoline, kerosene, heavy oil, lubricating oil, etc.) and the decomposition products of various oils. pollution. Petroleum, as the first energy source of modern industry, is the most precious fuel and chemical raw material in today's society. It is known as the blood of industry, but it is also the "blood" of this industry that has brought disaster to the modern social environment to a certain extent. [0003] In the process of large-scale oil extraction, smelting, transportation, use and processing, accidents such as pollution, omissi...

Claims

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Application Information

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IPC IPC(8): B09C1/00
Inventor 刘晓艳魏静李辈辈王倩李红兵李欣李宇玲周涛
Owner SHANGHAI UNIV
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