Composite porous gel microspheres, methods of making the same, and use in mine soil amelioration

By preparing composite porous gel microspheres, nitrogen-fixing microorganisms were encapsulated using zeolite molecular sieves, polyvinyl alcohol, sodium alginate, and chitosan as carriers, thus improving the soil in the mining area and solving the problems of soil nutrient deficiency and plant growth difficulties, thereby improving soil fertility and promoting plant growth.

CN117535276BActive Publication Date: 2026-05-29SHENHUA SHENDONG COAL GRP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENHUA SHENDONG COAL GRP
Filing Date
2022-08-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Even after the heavy metal content in the soil of the mining area has decreased, there are still problems of nutrient deficiency and difficulty in plant growth, which affect ecological restoration.

Method used

Composite porous gel microspheres are used, which contain a porous gel carrier and nitrogen-fixing microorganisms embedded in it. The carrier is composed of zeolite molecular sieve, polyvinyl alcohol, sodium alginate and chitosan, and is formed by chemical cross-linking. It is used to improve the soil in mining areas.

Benefits of technology

It improves the physical and chemical properties of soil in mining areas, enhances soil fertility, promotes plant growth, solves the problem of inconvenient storage and use of microorganisms, and has simple process, safe raw materials, and high economic efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of soil improvement, and particularly relates to a composite porous gel microsphere, a preparation method thereof and application of the composite porous gel microsphere in soil improvement in a mining area. The composite porous gel microsphere provided by the present application effectively utilizes the characteristics of polyvinyl alcohol, chitosan, sodium alginate and zeolite molecular sieve, and embeds nitrogen-fixing microorganisms as a carrier, so that the nitrogen-fixing microorganisms can better play a nitrogen-fixing effect. When the composite porous gel microsphere of the present application acts on soil in a mining area, it has a good improvement effect on the physicochemical properties of the soil in the mining area, and also has a significant improvement on the soil fertility, and has a significant promoting effect on the germination rate of plants and the growth of plants. The present application not only solves the problems of inconvenient storage and use of microorganisms, but also solves the problems of difficult growth of microorganisms and poor effect caused by the sandy nature of the soil in the mining area.
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