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Hydroxyapatite/activated carbon efficient soil conditioner and application thereof

A technology of soil improver and hydroxyapatite, applied in application, soil conditioning materials, phosphate fertilizer, etc., can solve the problems of calcium magnesium phosphate fertilizer and sludge fermentation fertilizer, complex operation, high cost of soil improvement, etc., to improve fertilizer retention ability, maintain soil moisture, and promote the effect of improvement

Inactive Publication Date: 2020-04-28
安徽瀑飞通讯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its operation is more complicated, and more calcium, magnesium, phosphate and sludge fermentation fertilizers need to be added, which makes the cost of soil improvement higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A hydroxyapatite / activated carbon high-efficiency soil improver, comprising the following raw materials in parts by weight: 23 parts of hydroxyapatite powder, 13 parts of rice husk activated carbon, 10 parts of coconut shell activated carbon, 10 parts of plant ash, 9 parts of straw, tomato residue 12 parts, 8 parts of animal manure, 0.25 parts of compound microbial agent, 9 parts of dolomite.

[0028] The preparation method of rice husk activated carbon is as follows: thoroughly remove the water from the rice husk, then crush it, and pass it through a 145-mesh sieve; mix the ground rice husk and saturated calcium chloride solution evenly at a material-to-liquid ratio of 1:1, and place it at a constant temperature of 105°C. Dry in a drying oven; then place it in a tubular resistance furnace, raise the temperature from room temperature to 40°C at a rate of 6°C / min in a nitrogen atmosphere, keep it for 80 minutes, and then cool it naturally to room temperature in a nitrogen...

Embodiment 2

[0036] A hydroxyapatite / activated carbon high-efficiency soil improver, comprising the following raw materials in parts by weight: 28 parts of hydroxyapatite powder, 10 parts of rice husk activated carbon, 12 parts of coconut shell activated carbon, 11 parts of plant ash, 9 parts of rice straw, tomato 12 parts of slag, 8 parts of animal manure, 0.2 parts of compound microbial agent, and 5 parts of dolomite.

[0037] The preparation method of rice husk activated carbon is as follows: thoroughly remove the water from the rice husk, then crush it, and pass through a 130-mesh sieve; mix the rice husk crushed material and saturated calcium chloride solution at a material-to-liquid ratio of 1:1, and place it at a constant temperature of 105°C. Dry in a drying oven; then place it in a tubular resistance furnace, raise the temperature from room temperature to 530°C at a rate of 6.5°C / min under a nitrogen atmosphere, keep it for 90 minutes, and then cool it naturally to room temperature...

Embodiment 3

[0044] A hydroxyapatite / activated carbon high-efficiency soil improver, comprising the following raw materials in parts by weight: 20 parts of hydroxyapatite powder, 13 parts of rice husk activated carbon, 7 parts of coconut shell activated carbon, 7 parts of plant ash, 11 parts of wheat straw, tomato 10 parts of slag, 10 parts of animal manure, 0.3 parts of compound microbial agent, and 10 parts of dolomite.

[0045] The preparation method of rice husk activated carbon is as follows: thoroughly remove the water from the rice husk, then pulverize it, and pass through a 150-mesh sieve; mix the ground rice husk and saturated calcium chloride solution evenly at a material-to-liquid ratio of 1:1, and place it at a constant temperature of 105°C. Dry in a drying oven; then place it in a tubular resistance furnace, raise the temperature from room temperature to 535°C at a rate of 5°C / min in a nitrogen atmosphere, keep it for 75min, and then cool it naturally to room temperature in a n...

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Abstract

The invention provides a hydroxyapatite / activated carbon efficient soil conditioner and application thereof, and relates to the technical field of soil conditioners. The efficient soil conditioner isprepared from the following raw materials in parts by weight: 20-28 parts of hydroxyapatite powder, 10-15 parts of rice hull activated carbon, 7-12 parts of coconut shell activated carbon, 7-13 partsof plant ash, 6-11 parts of straw, 10-15 parts of tomato pomace, 6-10 parts of animal waste, 0.2-0.3 part of compound microbial agent and 5-11 parts of dolomite. The soil conditioner is green and environment-friendly and low in cost and can effectively reduce the effective state content of each heavy metal in soil and improves the pH value of acidic soil and is good in fertilizer retention and moisture retention effects and high in organic matter content and greatly improves the soil structure and ecological environment of the acidic soil and has a good effect on improving the acidic soil andrepairing the acidic heavy metal contaminated soil.

Description

technical field [0001] The invention relates to the technical field of soil improvers, in particular to a hydroxyapatite / activated carbon high-efficiency soil improver and its application. Background technique [0002] Changes in soil anions and cations can reflect changes in soil acidity and alkalinity. Under natural rainfall conditions, some soluble cations enter the soil solution and lose with water, resulting in actual acidification of the soil, which is manifested as a decrease in soil pH in the soil; most anions in the soil are easily Precipitation and metal ions are difficult to move, reflecting the potential acidification of the soil. However, under natural conditions, the soil surface is rich in vegetation, which can provide a large number of adsorption sites for soil cations while reducing soil leaching. The natural acidification of soil often takes longer when the interference of human factors is excluded. At present, the main cause of soil acidification is the i...

Claims

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Application Information

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IPC IPC(8): C05G3/80C09K17/40C09K101/00C09K109/00
CPCC05B7/00C09K17/40C09K2101/00C09K2109/00
Inventor 陈庆
Owner 安徽瀑飞通讯科技有限公司
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