Conditioner for improving soil environment

By using conditioners that activate components such as calcium silicate, combined with physical, chemical, and biological methods, heavy metals are synergistically fixed and reduced, solving the problems of low efficiency and significant environmental impact in existing soil heavy metal treatment technologies, and achieving soil environmental restoration and improved agricultural production capacity.

CN121698699APending Publication Date: 2026-03-20GUANGDONG QIANLI AGRI SCI & TECH DEV GRP CO LTD
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Patent Information

Application Number
CN202511845508.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-09
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing technologies for treating heavy metal contaminated soil have drawbacks such as large engineering workload, high cost, potential damage to soil structure and ecological environment, chemical remediation methods may cause secondary pollution, and bioremediation methods have long cycles and are greatly affected by environmental factors. There is a lack of soil conditioners that can effectively reduce heavy metals and promote crop growth.

Method used

The conditioner, which uses activated calcium silicate, red mud, selenocysteine, compound decomposing bacteria, boric acid, ferrous sulfate, amino-modified alginic acid, potassium dihydrogen phosphate, wood ash, and chitosan, works synergistically through multiple mechanisms such as physical adsorption, ion exchange, complexation reaction, and microbial metabolism to fix and reduce heavy metals, regulate soil pH, provide nutrients, and improve soil microecology.

Benefits of technology

It effectively fixes and removes heavy metals from soil, reduces their bioavailability, improves soil physicochemical properties and microecological structure, enhances soil fertility and crop growth capacity, is easy to operate, has no secondary pollution, and is suitable for various types of heavy metal contaminated soil.

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Abstract

A conditioner for improving a soil environment belongs to the field of soil environment improvement and comprises the following substances in parts by weight: 6-8 parts of activated calcium silicate, 12-15 parts of red mud, 3-5 parts of selenocysteine, 4-6 parts of a composite decomposition microbial agent, 3-5 parts of boric acid, 4-6 parts of ferrous sulfate, 6-8 parts of aminated alginic acid, 15-20 parts of monopotassium phosphate, 6-10 parts of plant ash and 3-5 parts of chitosan. Through the synergistic effect of all the raw materials, heavy metals in soil can be efficiently fixed and removed from multiple dimensions, meanwhile, rich nutrient elements and beneficial microorganisms are supplemented for the soil, on the basis of reducing the bioavailability of the heavy metals and relieving the harm of the heavy metals to the ecological environment, the physicochemical properties and the micro-ecological structure of the soil are effectively improved, and the soil quality is improved. The soil remediation method has the advantages of being easy and convenient to operate, lasting in remediation effect, free of secondary pollution and the like, and is suitable for improvement of soil polluted by multiple types of heavy metals.
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