Soil pollution improver and preparation method thereof

A technology of improver and soil, which is applied in the field of soil pollution improver and its preparation, which can solve the problems of high cost, long duration, and inability to reduce the content of heavy metals in the soil, so as to improve water retention, increase fertility, and increase the number of microorganisms and the effect on the number of bacteria

Inactive Publication Date: 2021-10-01
于海松
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a soil pollution improver and its preparation method, aiming to solve the problem of the degradation of heavy metals in the soil in the prior art, which usually adopts the method of biological treatment or microbial treatment

Method used

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  • Soil pollution improver and preparation method thereof
  • Soil pollution improver and preparation method thereof

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Embodiment 1

[0032] see Figure 1-2 , the present invention provides the following technical solutions:

[0033] A soil pollution improving agent, comprising the following percentages by weight of adsorbent α and fertilizer β;

[0034] Adsorbent α includes 40-50% zeolite, 20-25% bentonite, 15-20% vermiculite and 4-8% suspending agent;

[0035] Fertilizer β includes 30-40% fermented crop substrate, 20-30% peat, 10-20% fly ash and 5-10% deodorant.

[0036] In a specific embodiment of the present invention, zeolite, bentonite, vermiculite and suspending agent are prepared in percentages by weight. Zeolite, bentonite and vermiculite are natural mineral zeolite and bentonite. The ability of water retention, adsorption of heavy metals in the soil and fixation of radioactive substances. Adsorbent α is prepared by adding a suspending agent to it to prevent the precipitation of sorbent α from affecting the crop bottom material and peat fermented with the main component of fertilizer β. And fly a...

Embodiment 2

[0048] A preparation method of soil pollution improving agent:

[0049] First obtain zeolite, bentonite, vermiculite and suspending agent according to the mass ratio, and then use a pulverizer to grind the zeolite and vermiculite into zeolite powder and vermiculite powder. The particle size range of the processed zeolite powder and vermiculite powder is 50-300 μm, according to Zeolite powder: Add sufficient water to the zeolite powder at a ratio of 1:2.5, then add bentonite and vermiculite powder to it, stir evenly, add suspending agent to it, and continue stirring to obtain adsorbent α; Add the deodorant to the fermented crop base material, peat, fly ash and deodorant, and stir evenly. After the odor is eliminated, dehydration treatment will remove the fermented crop base material. 60-75% moisture, mix the fermented crop bottom material, peat and fly ash, and then process the mixed product into granules with a length of 2-3mm and a width of 1-1.5mm through a granulator to pre...

Embodiment 3

[0051] For details, please refer to figure 1 and figure 2 , a method of using a soil pollution modifier,

[0052] First, mix the adsorbent α with water in a ratio of 1:3 and add it to the sprinkler, and spray the adsorbent α to the soil to be treated at a rate of 300ml / ㎡ through the sprinkler, and the soil sprayed with the adsorbent α will stand for 3-5 days ,like figure 2 As shown, the heavy metal content in the soil is H on the ordinate, and the days on the abscissa are D. After the adsorbent α is sprayed into the soil, the heavy metals in the soil solidify and condense, and precipitate from the soil as the number of days increases. The heavy metal content in the soil H is at It dropped to the minimum value in five days, and the heavy metal content in the soil was no longer used as an influencing factor for plant production; subsequently, the granular fertilizer β was applied to the soil, and the fertilizer β was 800 kg per mu, and it was mixed with the soil after being ...

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Abstract

The invention provides a soil pollution improver and a preparation method thereof, and belongs to the technical field of environmental protection, the soil pollution improver and the preparation method thereof comprise the following components in percentage by weight: an adsorbent alpha and a fertility enhancer beta, the adsorbent alpha comprises 40-50% of zeolite, 20-25% of bentonite, 15-20% of vermiculite and 4-8% of a suspending agent; the fertilizer enhancer beta comprises 30-40% of a fermented crop backing material, 20-30% of peat, 10-20% of fly ash and 5-10% of a deodorant, the fertilizer enhancer beta is used for secondary utilization of crops, the production cost is effectively reduced, the main raw materials in the adsorbent alpha are natural minerals, the preparation cost is low, the polluted soil treatment time is short, and the heavy metal content in the soil is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a soil pollution modifier and a preparation method thereof. Background technique [0002] In our past economic development, we are faced with important heavy metal pollution, among which soil heavy metal pollution is particularly prominent. There are heavy metal pollution problems in almost many cultivated lands all over the country. Soil heavy metal pollution has become a "public nuisance". At present, the main pollutants of soil heavy metal pollution in our country are: Mercury, cadmium, lead, arsenic and other biotoxic heavy metal elements, as well as toxic elements such as zinc and copper, when the cadmium in the soil exceeds the standard, the chlorophyll structure of the crop will be damaged, the ability to absorb water and sunlight will be greatly reduced, and the growth, yield and quality of the crop will be affected. When the lead in the soil ...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/08
CPCC09K17/40B09C1/08
Inventor 于海松
Owner 于海松
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