Method for restoring strontium-contaminated soil through oilseed rape

A technology for polluted soil and rapeseed, applied in the restoration of polluted soil and other directions, can solve the problems of low efficiency of soil radioactive pollution remediation, difficult strontium-contaminated soil remediation work, and limited ability of rapeseed to enrich strontium, etc. Good restoration effect, removal of soil strontium pollution, and good ornamental value

Inactive Publication Date: 2015-12-16
SICHUAN NORMAL UNIVERSITY
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use of phytoremediation to control soil radioactive pollution is an effective, cheap, and environmentally friendly method, and it is gradually being valued by people. However, at this stage, there are problems such as fewer super-accumulative plant species, low biomass, and low enrichment rate. [Yu Zeping, Phytoremediation and Utilization of Soil Radionuclide Pollution, Anhui Agricultural Sciences, 3009, 37(13): 6101-6103], resulting in low efficiency of soil radioactive pollution remediation, which limits the use of phytoremediation in remediation and governance Application of Strontium Contaminated Soil
[0004] Rapeseed is the oil crop with the largest sowing area and the widest distribution in my country. Although it is known that rapeseed has a certain ability to enrich soil strontium pollution, existing reports believe that rapeseed has a limited ability to enrich strontium. When the strontium content is 1mmol The above-ground accumulation of strontium in the rapeseed Hoagland nutrient solution is only 0.39mg / g [Zhang Xiaoxue et al., ten kinds of plants are opposite to strontium under hydroponic conditions 88 Sr and 133 Absorption and enrichment of Cs[J], Northern Horticulture 2009(10):65~67], because the soil itself has an adsorption effect on heavy metals, it is relatively difficult for plants to enrich heavy metals in the soil, so the accumulation of rapeseed in the soil Theoretically speaking, it will be very low, and it is difficult to be used in the remediation and treatment of strontium-contaminated soil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for restoring strontium-contaminated soil through oilseed rape
  • Method for restoring strontium-contaminated soil through oilseed rape
  • Method for restoring strontium-contaminated soil through oilseed rape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 The method for repairing and controlling strontium-contaminated soil of the present invention

[0032] The specific method is as follows:

[0033] Apply compound fertilizer in the strontium-contaminated soil, the application amount is 40-50kg / mu; then sow rapeseed, and topdress urea once after 15 days of cultivation and at the budding stage, the application amount is 5-10kg / mu each time;

[0034] When the rape grows to the pod stage, the aboveground part of the rape is harvested or the whole is removed from the contaminated soil.

[0035] Plants that are harvested or removed from the polluted soil as a whole are harmlessly disposed of by incineration, and the residues containing strontium after incineration are further disposed of by recycling metals and landfilling.

[0036] The beneficial effects of the present invention are illustrated below through test examples.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for restoring strontium-contaminated soil through oilseed rape. The method includes the following steps that the oilseed rape is planted in the strontium-contaminated soil, and the overground part of the oilseed rape is harvested or the whole oilseed rape is moved away from the flowering period of the oilseed rape to the fruiting period of the oilseed rape. According to the method, the restoration and treatment efficiency of the strontium-contaminated soil is high, operation is simple, treatment cost is low, management is convenient, the in-situ restoration effect is good, the method can be used for restoration and treatment of the large-area strontium-contaminated soil, a new choice is provided for removing soil strontium contamination, and high application and popularization value is achieved.

Description

technical field [0001] The invention relates to the technical field of environmental phytoremediation, in particular to a method for remediating strontium-contaminated soil by using rapeseed. Background technique [0002] With the development and utilization of nuclear technology, a large amount of radioactive nuclear waste has entered the environment, causing great radioactive pollution to the ecological environment, especially the soil. Among them, strontium (Sr), as one of the most common nuclear wastes, forms long-term pollution after entering the environment, which is difficult to eliminate. Blood cells, bone cells and skin cells die in large numbers, seriously threatening human health. Therefore, the environmental control of strontium pollution has received widespread attention. [0003] The use of phytoremediation to control soil radioactive pollution is an effective, cheap, and environmentally friendly method, and it is gradually being valued by people. However, at...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
CPCB09C1/00
Inventor 陶宗娅赖金龙付倩吴国韩娜
Owner SICHUAN NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products