Prepn and usage of plant repairing body for contaminated soil

A technology for polluting soil and repairing plants, which is applied in the field of pollution control. It can solve the problems that it is difficult for plant groups to remove pollutants, the process of soil detoxification is slow, and the promotion and use are limited. It can achieve soil improvement, vegetation restoration, and simple use. Effect

Inactive Publication Date: 2005-09-28
NORTHEAST NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

Because the toxicity of pollutants can inhibit the growth and development of plants to a certain extent, it is difficult for plant groups to form the biomass necessary to remove pollutants on polluted soil, resulting in very slow soil detoxification process and poor effect, which limits its further promotion and use.
In order to improve the shortcomings of phytoremediation, people use methods such as seed coating and plastic pot seedling cultivation to improve the growth ability of remediation plants in polluted soil. Although some results have been achieved, they still cannot meet the actual needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] 1 Select 5 kg of herbaceous peat with 30% organic matter, 25% humic acid, 35% water content, and 40% ash content and pulverize it for later use; weigh 15 grams of potassium dihydrogen phosphate (KH 2 PO 4 ), 15 grams of urea-formaldehyde slow-release fertilizer (UF), 5 grams of water-retaining agent (polyacrylic acid), 10 grams of powdery hydrophobic adhesive (polyvinyl alcohol (PVA)-lignin type), 50 grams of perlite, rooting agent indium Indolebutyric acid (IBA) 0.5 g, mixed in a mixer for 10 minutes, then entered into a pulverizer for crushing, the particles passing through a 1 mm sieve accounted for 96% of the total material; the treated peat and nutritional supplements were mixed in a mixer for 20 minutes and then entered into molding Pressed into blocks. The specifications are: the shape is a cylinder, 10 cm high, and 8 cm in diameter; the seed hole is conical, with a depth of 5 cm and a diameter of 2 cm.

[0018] 2 Select 5 kg of herbaceous peat with 40% organic...

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Abstract

The present invention belongs to the field of pollution treating technology in environment protecting technology. Turf as culturing medium for soil improvement, air, water maintaining agent, water soluble adhesive, rooting agent and long acting delayed releasing fertilizer are prepared into plant growth body in certain shape; and the plant seed or seedling for repairing polluted soil is first cultured in the plant growth body and then transplanted to the polluted soil. The said method can raise the survival capacity of plant in polluted soil, biomass and growth speed and improve the fertility of the repaired soil, and may be used in repairing soil polluted with heavy metal and organic matter, restoring the vegetation in waste mined place and repairing other destroyed ecological environment.

Description

technical field [0001] The invention belongs to the pollution control technology in the field of environment, and relates to the preparation of a polluted soil restoration plant culture body and its restoration method. technical background [0002] Industrial and agricultural production has caused a large amount of soil pollution, which not only degrades soil fertility, reduces crop yield and quality, but also deteriorates the environment and endangers human life and health through the food chain. The treatment of polluted soil has become a difficult point in environmental pollution and treatment. [0003] Currently, there is a lack of cheap and effective purification technologies for polluted soil. Conventional physical or chemical methods such as vitrification, electrokinetics, heat treatment, and surfactants are not only expensive and complicated to operate, but also often lead to soil structure destruction, soil biological activity decline, and soil fertility degradatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
Inventor 王忠强孟宪民王升忠林叶彬
Owner NORTHEAST NORMAL UNIVERSITY
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