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Self-permeating type soil heavy metal repair agent and preparation method thereof

A technology of heavy metals and repairing agents, applied in the direction of soil conditioning materials, chemical instruments and methods, mixers, etc., can solve the problems of reducing absorption, accelerating the corrosion rate of heavy metals on soil, and affecting the physical properties of soil, so as to promote decomposition and improve mixing Mixing effect, effect of improving fat retention and cushioning

Inactive Publication Date: 2019-12-20
杨涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are 150 million mu of polluted cultivated land nationwide, accounting for 8.3% of the total cultivated land area, most of which are polluted by heavy metals. The increase of heavy metals in the soil, especially cadmium and lead, will significantly reduce the number of bacteria and nitrogen-fixing bacteria in the soil, and will damage plants. Chlorophyll in the root system reduces the absorption of water and nutrients by the root system, inhibits the fixation of nitrogen by the root system and the activity of nitrate reductase, and the increase of cadmium and lead content accelerates the corrosion rate of heavy metals to the soil, which seriously affects the physical properties of the soil.

Method used

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  • Self-permeating type soil heavy metal repair agent and preparation method thereof
  • Self-permeating type soil heavy metal repair agent and preparation method thereof
  • Self-permeating type soil heavy metal repair agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , a self-permeable soil heavy metal restoration agent, characterized in that: it includes the following components in parts by mass: 40 parts of organic matter, 10 parts of organic acid, 5 parts of carbonate, 25 parts of zeolite, 3 parts of peat, 3 parts of Biochar, 5 parts of weathered coal, 1 part of soil penetrating agent, 2 parts of chelating agent, 0.5 part of water retention agent, its preparation method is: comprise the following steps:

[0044] S1, carry out the weighing of component according to the proportioning of above-mentioned component;

[0045] S2. Put an appropriate amount of organic matter and organic acid in the fermentation tank for mixed fermentation to form a fermented product. After the fermentation is completed, press and filter the fermented product to obtain a fermented solid residue and a fermented liquid;

[0046] S3. Put carbonate, zeolite, peat, biochar, and weathered coal in a high-speed mixer and mix and stir for 1.5 hours t...

Embodiment 2

[0050] see figure 1 , a self-permeable soil heavy metal restoration agent, characterized in that: it includes the following components in parts by mass: 50 parts of organic matter, 15 parts of organic acid, 10 parts of carbonate, 32 parts of zeolite, 4 parts of peat, 4 parts of Biochar, 8 parts of weathered coal, 2 parts of soil penetrating agent, 4 parts of chelating agent, 1 part of water retention agent, its preparation method is: comprise the following steps:

[0051] S1, carry out the weighing of component according to the proportioning of above-mentioned component;

[0052] S2. Put an appropriate amount of organic matter and organic acid in the fermentation tank for mixed fermentation to form a fermented product. After the fermentation is completed, press and filter the fermented product to obtain a fermented solid residue and a fermented liquid;

[0053] S3. Put carbonate, zeolite, peat, biochar, and weathered coal in a high-speed mixer and mix and stir for 2 hours to ...

Embodiment 3

[0057] see figure 1 , a self-permeable soil heavy metal restoration agent, characterized in that: it includes the following components in parts by mass: 60 parts of organic matter, 20 parts of organic acid, 15 parts of carbonate, 40 parts of zeolite, 5 parts of peat, 5 parts of Biochar, 10 parts of weathered coal, 3 parts of soil penetrating agent, 5 parts of chelating agent, 1.5 parts of water retention agent, its preparation method is: comprise the following steps:

[0058] S1, carry out the weighing of component according to the proportioning of above-mentioned component;

[0059] S2. Put an appropriate amount of organic matter and organic acid in the fermentation tank for mixed fermentation to form a fermented product. After the fermentation is completed, press and filter the fermented product to obtain a fermented solid residue and a fermented liquid;

[0060] S3. Put carbonate, zeolite, peat, biochar, and weathered coal in a high-speed mixer and mix and stir for 2.5 hou...

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Abstract

The invention discloses a self-permeating type soil heavy metal repair agent and a preparation method thereof, and belongs to the technical field of repair agent preparation. According to the self-permeating type soil heavy metal repair agent and the preparation method thereof, organic matter is mixed with a base material of organic acid, the promoting property of the repair agent on growth and development of plants is effectively improved, physical properties of repaired soil are improved, activities of microorganisms and soil organisms are promoted, nutrient elements in the soil are promotedto be decomposed, and meanwhile, air permeability, permeability and adsorbability of the soil are changed; by addition of mineral improvers such as zeolite, peat, charcoal, weathered coal and the like, on one hand, reaction performance such as adsorption, ion exchange and the like of heavy metal elements is improved, heavy metal pollutants such as cadmium, chromium, lead and the like in soil canbe cured and passivated, bio-availability of the heavy metal pollutants and mobility in soil are reduced, risks that the pollutants are absorbed by crops and transferred to food chains are reduced, and on the other hand, physical and chemical properties of the soil are improved.

Description

technical field [0001] The invention relates to the technical field of repairing agent preparation, in particular to a self-permeable soil heavy metal repairing agent and a preparation method thereof. Background technique [0002] Soil is the basic resource for human survival and development, and the foundation of agricultural development. However, with the rapid development of modern industry and the widespread use of pesticides and chemical fertilizers, heavy metal pollution in farmland soil is becoming more and more serious. Heavy metal pollution is toxic and easy to accumulate in plants, animals and humans through the food chain, which poses a threat to the ecological environment and human health. serious threat. [0003] According to the national soil pollution survey data, the current domestic pollution types are dominated by inorganic types, followed by organic types, and the proportion of compound pollution is small. From the perspective of pollution distribution, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/04B01F13/10B01F7/18C09K101/00
CPCC09K17/40C05C3/00C09K2101/00B01F27/90B01F33/831B01F33/83612
Inventor 杨涛
Owner 杨涛
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