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Soil treatment method based on biochar material

A biochar and biochar-based fertilizer technology, applied in the field of soil treatment, can solve the problems of low absorption efficiency of heavy metals, long repair time, and high difficulty of resistant crops, so as to improve soil degradation and productivity decline, increase biodiversity, and save production costs Effect

Pending Publication Date: 2021-03-23
天津亚德尔生物质科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. It is difficult to determine suitable resistant crops, and improper selection will increase the difficulty of planting;
[0006] 2. The heavy metal absorption efficiency of a single crop is low, the heavy metal repair elements are single, the repair time is too long, and the survival rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of soil treatment method based on biochar material, comprises steps as follows:

[0049] aPretreatment of contaminated soil

[0050] Apply biochar-based fertilizer to heavy metal-polluted soil, mix well, and age for 75 days;

[0051] b planting first-class crops

[0052] Prepare the polluted soil, plow the ground, apply decomposed compost, soil fertilizer, superphosphate and bone meal. After the fertilization is completed, plant mint into the treated soil, and continuously plant mint for 1 cycle. month as a cycle;

[0053] c planting secondary crops

[0054] Remove all the mint plants, apply biochar-based fertilizer to the soil where mint has been planted again, mix evenly, and age for 45 days. After the biochar-based fertilizer is aged, three cycles of cotton are continuously planted. After each cycle of cotton planting, the The microbial compound bacterial agent is inoculated into the soil, and the cotton is removed as a whole after each cycle, with 10 mont...

Embodiment 2

[0067] A kind of soil treatment method based on biochar material, comprises steps as follows:

[0068] aPretreatment of contaminated soil

[0069] Apply biochar-based fertilizer to heavy metal-polluted soil, mix well, and age for 85 days;

[0070] b planting first-class crops

[0071] Prepare the polluted soil, plow the ground, apply decomposed compost, soil fertilizer, superphosphate and bone meal. After the fertilization is completed, plant mint into the treated soil, and plant mint continuously for 3 cycles. month as a cycle;

[0072] c planting secondary crops

[0073] Remove all the mint plants, apply biochar-based fertilizer to the soil where mint has been planted again, mix evenly, and age for 55 days. After the biochar-based fertilizer is aged, four cycles of cotton are continuously planted. After each cycle of cotton planting, the The microbial compound bacteria agent is inoculated into the soil, and the cotton is removed as a whole after each cycle, with 12 month...

Embodiment 3

[0086] A kind of soil treatment method based on biochar material, comprises steps as follows:

[0087] aPretreatment of contaminated soil

[0088] Apply biochar-based fertilizer to heavy metal-polluted soil, mix well, and age for 80 days;

[0089] b planting first-class crops

[0090] Prepare the polluted soil, plow the ground, apply decomposed compost, soil fertilizer, superphosphate and bone meal. After the fertilization is completed, plant mint into the treated soil, and continuously plant mint for 2 cycles. month as a cycle;

[0091] c planting secondary crops

[0092] Remove all the mint plants, apply biochar-based fertilizer to the soil where mint has been planted again, mix evenly, and age for 50 days. After the biochar-based fertilizer is aged, three cycles of cotton are continuously planted. After each cycle of cotton planting, the The microbial compound bacterial agent is inoculated into the soil, and the cotton is removed as a whole after each cycle, with 11 mon...

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Abstract

The invention relates to a soil treatment method based on a biochar material. The method comprises the following steps: a, pretreating contaminated soil; b, planting first-grade crops; c, planting secondary crops; d, planting third-grade crops; and e, conducting soil detection. Mint smells cool and refreshing, can be used as spice, is low in mint planting difficulty and convenient to manage, and can well absorb heavy metal in soil through cooperative work of developed mint root systems and charcoal base fertilizer; cotton is an important commercial crop and is low in planting difficulty, residual wastes of cotton and pine trees can be used for preparing biochar in the biochar base fertilizer, so that the preparation cost of the biochar base fertilizer is saved; and planting of the cotton and the pine trees is beneficial for improving soil degradation and productivity reduction caused by organic pollution, the earth surface can be stably recovered for a long time, and the biological diversity is improved.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a soil treatment method based on biochar materials. Background technique [0002] Soil is not only an important part of the earth's ecological circle, but also one of the important natural resources that human beings rely on for survival. With the development of industrial activities such as mineral mining and smelting, and agricultural activities such as sewage irrigation, application of sludge and low-quality chemical fertilizers, harmful heavy metals such as Cd and Pb continue to enter the soil environment, causing pollution to normal production and life. Therefore, the control of soil heavy metal pollution is of great significance to the construction of ecological civilization and the healthy life of human beings. [0003] The traditional remediation methods for soil heavy metal pollution are usually physical and chemical methods, such as dilution and soil covering me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/10B09C1/08
CPCB09C1/08B09C1/105B09C1/10
Inventor 魏晓东任永香魏巍魏洪生
Owner 天津亚德尔生物质科技股份有限公司
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