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Biochar soil remediation agent and preparation method thereof

A soil remediation agent, biochar technology, applied in soil conditioning materials, chemical instruments and methods, urea compound fertilizers, etc., can solve the problems of high cost, secondary pollution, slow effect, etc., to achieve simple operation, elimination of slow effect, The effect of increasing the content of organic matter and microorganisms

Inactive Publication Date: 2018-10-12
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of slow effect, easy to cause secondary pollution, and high cost in the use of soil remediation agents in the prior art, the present invention provides a biochar soil remediation agent and its preparation method

Method used

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  • Biochar soil remediation agent and preparation method thereof
  • Biochar soil remediation agent and preparation method thereof
  • Biochar soil remediation agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A biochar soil remediation agent is composed of the following raw materials in parts by weight:

[0025]

[0026] A preparation method of biochar soil remediation agent comprises the following steps:

[0027] Step 1, preparation of titanium dioxide-loaded biochar: first, simply clean the biomass material, air-dry it naturally, pulverize the biomass material, and pass through a 50-mesh sieve to obtain a biomass material powder; then prepare a titanium dioxide dispersion, The biomass material powder is completely immersed in the prepared titanium dioxide dispersion solution for soaking. During the treatment, magnetic stirring is carried out. The magnetic stirring speed is 200rpm / min, the temperature is maintained at 45°C, and the treatment time is 2h. The material powder is filtered, and then dried in a vacuum oven at a temperature of 45°C; finally, the dried biomass material loaded with titanium dioxide is placed in a tube furnace, and a protective gas is introduced t...

Embodiment 2

[0035] A biochar soil remediation agent is composed of the following raw materials in parts by weight:

[0036]

[0037] A preparation method of biochar soil remediation agent comprises the following steps:

[0038] Step 1, preparation of titanium dioxide-loaded biochar: firstly, the biomass material is simply cleaned, and after being dried by cold air, the biomass material is pulverized and passed through an 80-mesh sieve to obtain a biomass material powder; then, a titanium dioxide dispersion is prepared , the biomass material powder is completely immersed in the prepared titanium dioxide dispersion solution for soaking, and magnetic stirring is performed during the treatment process. The magnetic stirring speed is 500rpm / min, the temperature is maintained at 65°C, and the treatment time is 1h. The biomass material powder was filtered, and then dried in a vacuum oven at a temperature of 50 °C; finally, the dried biomass material loaded with titanium dioxide was placed in a ...

Embodiment 3

[0046] A biochar soil remediation agent is composed of the following raw materials in parts by weight:

[0047]

[0048] A preparation method of biochar soil remediation agent comprises the following steps:

[0049] Step 1, preparation of titanium dioxide-loaded biochar: first, simply clean the biomass material, and after drying with cold air, crush the biomass material, pass through a 60-mesh sieve, and obtain a biomass material powder; then prepare a titanium dioxide dispersion , the biomass material powder is completely immersed in the prepared titanium dioxide dispersion solution for soaking, and magnetic stirring is carried out during the treatment process. The magnetic stirring speed is 400rpm / min, the temperature is maintained at 50°C, and the treatment time is 1.5h. The biomass material powder is filtered, and then dried in a vacuum oven at a temperature of 48°C; finally, the dried biomass material loaded with titanium dioxide is placed in a tube furnace, and a prot...

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PUM

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Abstract

The invention discloses a biochar soil remediation agent and a preparation method thereof. The biochar soil remediation agent is prepared from titanium dioxide supported biochar, compost materials, compound fertilizer, a biological bacteria solution, clay, a binder and microelements; the preparation method of the biochar soil remediation agent comprises steps as follows: preparation of titanium dioxide supported biochar, preparation of the compost materials, preparation of the biological bacteria solution, preparation of the clay, preparation of a mixed material coated with biochar, pelletizing and drying. The preparation process is environmentally friendly and simple to operate, the raw materials are widely sourced, the prepared soil remediation agent not only can adsorb and degrade pollutants in soil, but also increases content of organic matter and microorganisms in the soil, and accordingly, economic benefit and environmental benefit are remarkably increased.

Description

technical field [0001] The invention relates to a soil restoration agent, in particular to a biochar soil restoration agent and a preparation method thereof. Background technique [0002] Biochar is a stable carbon-rich solidified product formed by high-temperature pyrolysis and carbonization of bio-organic materials in the absence of oxygen or anaerobic conditions. Biochar materials have the characteristics of non-polluting, renewable, rich porosity, large specific surface area, and a large number of surface functional groups. They show strong adsorption capacity during use, and have relatively great application potential in soil adsorption and restoration. , has become one of the most promising new materials. Biochar can adsorb organic pollutants such as pesticides and heavy metal inorganic pollutants in the soil, but when the adsorption of biochar reaches saturation, the ability of biochar to adsorb inorganic and organic pollutants will decrease. As a photocatalyst and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C09K17/40C05G3/80
CPCC05B1/02C05G3/80C05G5/12C05G5/30C09K17/40C05B7/00C05C9/00C05D9/00C05D9/02C05F3/00C05F11/00C05F11/08
Inventor 文阳平李振涛商庆银刘逸虹高洁杨秀霞
Owner JIANGXI AGRICULTURAL UNIVERSITY
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