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Soil heavy metal biological fixation agent and application method thereof

An application method and heavy metal technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve problems such as the need to stop farming, heavy metal restoration with a single function, and no other functions, and achieve low and high environmental risks. Adsorption and particle exchange capabilities, low-cost effects

Inactive Publication Date: 2018-05-18
谢涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of soil heavy metal biological fixative and its application method, to solve the existing some bioremediation methods proposed in the above-mentioned background technology and need stop tillage during the repair process, or only have a single function of heavy metal repair without Questions with other features

Method used

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Examples

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Effect test

Embodiment 1

[0020] The application method of the soil heavy metal biofixation agent is as follows: organic fertilizer, biochar, arbuscular mycorrhizal fungi, yeast, algae, bacillus and clay mineral materials are mixed uniformly to obtain the soil heavy metal biofixation agent, and then the The soil heavy metal biofixative is directly applied to the polluted soil, mixed evenly, and then fermented. The mass ratio of the soil heavy metal biofixative to the polluted soil is 0.08:100, the fermentation time is 4 days, and the fermentation temperature is 18 degrees Celsius .

[0021] In this embodiment, organic fertilizer: 39 parts, the main component of the organic fertilizer is animal manure; biochar: 58 parts, the biochar is straw, fallen leaves and husk biochar; arbuscular mycorrhizal fungi: 14 Yeast: 4 parts; Algae: 16 parts, the algae is at least one of Synechococcus and Chlorella; Bacillus: 8 parts, the number of viable bacteria of the Bacillus is 0.5 × 108CFU / g, The culture medium of th...

Embodiment 2

[0023] The application method of the soil heavy metal biofixation agent is as follows: organic fertilizer, biochar, arbuscular mycorrhizal fungi, yeast, algae, bacillus and clay mineral materials are mixed uniformly to obtain the soil heavy metal biofixation agent, and then the The soil heavy metal biofixative is directly applied to the polluted soil, mixed evenly, and then fermented. The mass ratio of the soil heavy metal biofixative to the polluted soil is 0.18:100, the fermentation time is 5 days, and the fermentation temperature is 28 degrees Celsius .

[0024] In this embodiment, organic fertilizer: 35 parts, the main component of the organic fertilizer is animal manure; biochar: 58 parts, the biochar is straw, fallen leaves and husk biochar; arbuscular mycorrhizal fungi: 11 Saccharomycetes: 4 parts; Algae: 11 parts, said algae is at least one in Synechococcus and Chlorella; Bacillus: 10 parts, the number of viable bacteria of said Bacillus is 5 * 108CFU / g, The culture m...

Embodiment 3

[0026] The application method of the soil heavy metal biofixation agent is as follows: organic fertilizer, biochar, arbuscular mycorrhizal fungi, yeast, algae, bacillus and clay mineral materials are mixed uniformly to obtain the soil heavy metal biofixation agent, and then the The soil heavy metal biofixative is directly applied to the polluted soil, mixed evenly, and then fermented. The mass ratio of the soil heavy metal biofixative to the polluted soil is 0.13:100, the fermentation time is 4.5 days, and the fermentation temperature is 23 degrees Celsius .

[0027] In this embodiment, organic fertilizer: 35 parts, the main component of the organic fertilizer is animal manure; biochar: 55 parts, the biochar is straw, fallen leaves and husk biochar; arbuscular mycorrhizal fungi: 12 Saccharomycetes: 5 parts; Algae: 13 parts, said algae is at least one in Synechococcus and Chlorella; Bacillus: 9 parts, the number of viable bacteria of said Bacillus is 0.75 * 108CFU / g, The cultu...

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Abstract

The invention discloses belongs to the technical field of biological fixation agents, in particular to a soil heavy metal biological fixation agent and an application method thereof. The soil heavy metal biological fixation agent comprises the following components of an organic fertilizer, biological carbon, arbuscular mycorrhizal fungi, saccharomycete, algae, bacilli and clay mineral substance materials. The application method of the soil heavy metal biological fixation agent comprises the steps that the organic fertilizer, the biological carbon, the arbuscular mycorrhizal fungi, the saccharomycete, the algae, the bacilli and the clay mineral substance materials are mixed uniformly and thus the soil heavy metal biological fixation agent is obtained, then the soil heavy metal biological fixation agent is directly applied to contaminated soil, and mixing uniform and fermentation are carried out. The soil heavy metal biological fixation agent has high adsorption and particle replacing power, the PH value of the soil is increased, insoluble heavy metal chemical compound sediment is formed, the soil quality is improved, formation of soil aggregate is facilitated, the structural stability of the soil is improved, the soil heavy metal biological fixation agent and the application method are low in cost and little in environment risk, no pollution is caused and farming stopping is notrequired.

Description

technical field [0001] The invention relates to the technical field of biological fixatives, in particular to a soil heavy metal biological fixative and an application method thereof. Background technique [0002] Heavy metals are a class of important soil pollutants with poor mobility, difficult to degrade, and potential hazards. During the development and smelting of technical mineral deposits, the accumulation of solid waste, and the application of expenses and pesticide sludge to improve agricultural production, heavy metals are abundant in the soil. Accumulation, heavy metals in the soil can be absorbed into plants through the root system, and affect the growth and reproduction of plants by inhibiting enzyme activity, promoting ATP degradation, changing the permeability of cell membranes, and damaging genetic material DNA. Heavy metals may also pass through the food chain The biomagnification effect of heavy metals enters the human body and threatens human health. At pr...

Claims

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Application Information

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IPC IPC(8): B09C1/10C12N1/20C12R1/07
CPCB09C1/105B09C2101/00C12N1/20
Inventor 谢涛
Owner 谢涛
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