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Soil heavy metal passivator, preparation method thereof, and soil treatment agent

A heavy metal passivator and soil technology, applied in chemical instruments and methods, soil conditioning materials, restoration of contaminated soil, etc., can solve the problems of use restrictions, difficulty in survival of exogenous microorganisms, etc., to reduce effectiveness and improve soil Microbial activity, effect of loose soil texture

Inactive Publication Date: 2020-03-13
深圳柏施泰环境工程有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This method is theoretically feasible, but due to the complexity of the soil environment, it is difficult for exogenous microorganisms to survive in the soil, which limits the use of this method

Method used

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  • Soil heavy metal passivator, preparation method thereof, and soil treatment agent
  • Soil heavy metal passivator, preparation method thereof, and soil treatment agent
  • Soil heavy metal passivator, preparation method thereof, and soil treatment agent

Examples

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Embodiment 1-7

[0026] Preparation of biological preparation 1: Take 4 parts by mass of alfalfa powder, 3 parts by mass of soybean powder and 3 parts by mass of aloe vera powder and add them to low-temperature water at 30°C for low-temperature extraction treatment for 3 hours, and then place them in a low-temperature ultrasonic processor to The low-temperature extract was obtained by treating with an oscillation frequency of 40KHz for 30 minutes. Filter the low-temperature extract and place it in a sealed container at room temperature for 30 days, add Ascophyllum nodosum freeze-dried powder according to the ratio of 10g / 1L of the extract filtrate, and leave it for another 7 days to obtain biological agent 1 by filtration, usually brown and with a special smell liquid.

[0027] Biological preparation two: get 4.5 parts by mass of alfalfa powder, 2.5 parts by mass of soybean powder and 2.5 parts by mass of aloe powder and add them to 20°C low-temperature water for low-temperature extraction for...

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Abstract

The invention discloses a soil heavy metal passivator, a preparation method thereof, and a soil treatment agent. The soil heavy metal passivator comprises the following raw materials in parts by mass:2-5 parts of a biological agent, 5-15 parts of seaweed extract, 5-10 parts of gas-phase SiO2 and 1-5 parts of chitosan oligosaccharide; based on the mass of the biological agent, the biological agentis prepared from a mixed raw material containing 4-5 parts by mass of alfalfa powder, 2-3 parts by mass of soybean powder and 2-3 parts by mass of aloe powder. The soil heavy metal passivator can beused as a soil microbial activator, the activity of soil microorganisms is improved, heavy metals in soil are complexed and chelated by utilizing organic acids and micromolecular organic matters generated by soil microbial metabolism, the effectiveness of the heavy metals in the soil is reduced, and the purpose of passivating the heavy metals in the soil is achieved.

Description

technical field [0001] The invention relates to the technical field of soil heavy metal remediation, in particular to a soil heavy metal passivator, a preparation method thereof and a soil treatment agent. Background technique [0002] Soil heavy metal pollution refers to the accumulation of heavy metals such as Cd, Pb, Zn, Hg, Mn, Cu in the soil exceeding a certain range, causing certain poisonous damage to crops, or causing the content of agricultural products to exceed the standard, seriously affecting people's health. A kind of soil pollution. [0003] The main ways of heavy metal pollution in my country's farmland are industrial wastewater with heavy metal content exceeding the standard, and the waste residue is discharged directly without treatment, and flows into the farmland soil with groundwater and irrigation water; industrial waste gas, vehicle exhaust, and waste gas generated by other means enter the farmland with rainwater and atmospheric deposition ; Pesticides...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01G22/22A01G22/15B09C1/08B09C1/10C09K101/00
CPCC09K17/40A01G22/22A01G22/15B09C1/08B09C1/10B09C1/105C09K2101/00B09C2101/00
Inventor 张敬智孙曲
Owner 深圳柏施泰环境工程有限公司
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