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Acid soil improver

A technology of acidic soil and improver, applied in application, animal carcass fertilizer, agriculture, etc., can solve the problems of desulfurization ash utilization mode and application range limitation, low utilization rate of desulfurization agent, difficult process control, etc., to achieve the promotion of types and quantities The effect of increasing, protecting the environment and increasing crop yield

Inactive Publication Date: 2019-01-18
中国华电集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high Ca / S of semi-dry flue gas desulfurization process, low utilization rate of desulfurization agent, slow reaction speed and difficult process control, the utilization mode and application range of desulfurization ash are strictly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The weight percent of an acidic soil improver is as follows: semi-dry desulfurization ash: 25%, straw: 30%, oyster shell powder: 30%, magnesium sulfate: 7%, zinc sulfate: 8%;

[0030] The weight percent of semi-dry desulfurization ash is as follows: 40.0 parts by weight of SiO 2 , 14.8 parts by weight of Al 2 o 3 , 4.2 parts by weight of Fe 2 o 3 , 27.1 parts by weight of CaO, 2.9 parts by weight of MgO, 3.8 parts by weight of K 2 O, 4.8 parts by weight of Na 2 O and 2.4 parts by weight of P 2 o 5 ;

[0031] The fineness of semi-dry desulfurization ash is 45μm, and the sieve residue is not more than 15%; the straw is crushed to 5-100mm; the oyster shell powder fineness is 45μm, and the sieve residue is not more than 15%; magnesium sulfate, zinc sulfate The fineness is 45μm square hole sieve and the sieve residue is not more than 10%.

Embodiment 2

[0033]The weight percent of an acidic soil improver is as follows: semi-dry desulfurization ash: 30%, straw: 25%, oyster shell powder: 30%, magnesium sulfate: 7%, zinc sulfate: 8%;

[0034] The weight percent of semi-dry desulfurization ash is as follows: 45.0 parts by weight of SiO 2 , 11.6 parts by weight of Al 2 o 3 , 3.8 parts by weight of Fe 2 o 3 , 25.3 parts by weight of CaO, 2.5 parts by weight of MgO, 3.8 parts by weight of K 2 O, 4.9 parts by weight of Na 2 O and 2.9 parts by weight of P 2 o 5 ;

[0035] The fineness of semi-dry desulfurization ash is 45μm, and the sieve residue is not more than 15%; the straw is crushed to 5-100mm; the oyster shell powder fineness is 45μm, and the sieve residue is not more than 15%; magnesium sulfate, zinc sulfate The fineness is 45μm square hole sieve and the sieve residue is not more than 10%.

Embodiment 3

[0037] The percentage by weight of an acidic soil improver is as follows: semi-dry desulfurization ash: 35%, straw: 25%, oyster shell powder: 25%, magnesium sulfate: 7%, zinc sulfate: 8%;

[0038] The weight percent of semi-dry desulfurization ash is as follows: 50.0 parts by weight of SiO 2 , 10.3 parts by weight of Al 2 o 3 , 4.7 parts by weight of Fe 2 o 3 , 22.2 parts by weight of CaO, 2.6 parts by weight of MgO, 3.4 parts by weight of K 2 O, 4.0 parts by weight of Na 2 O and 2.8 parts by weight of P 2 o 5 ;

[0039] The fineness of semi-dry desulfurization ash is 45μm, and the sieve residue is not more than 15%; the straw is crushed to 5-100mm; the oyster shell powder fineness is 45μm, and the sieve residue is not more than 15%; magnesium sulfate, zinc sulfate The fineness is 45μm square hole sieve and the sieve residue is not more than 10%.

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Abstract

The invention provides an acid soil improver. The acid soil improver is prepared from the following components in percentage by weight: 25 to 43 percent of semi-dry flue gas desulfurization ash, 1 to30 percent of straw, 1 to 30 percent of oyster shell, 6 to 15 percent of magnesium sulfate and 6 to 15 percent of zinc sulfate. The invention provides the acid soil improver which takes the semi-dry flue gas desulfurization ash as a main component, the acid soil improver is capable of improving the acidity of acid soil and preventing food production reduction caused by degradation of the acid soil, and meanwhile, resource utilization of the semi-dry flue gas desulfurization ash is promoted.

Description

technical field [0001] The invention relates to the technical field of soil improvers, in particular to an acidic soil improver. Background technique [0002] Acidic soil is a general term for soil with a pH value less than 7, which is widely distributed in tropical and subtropical regions of my country. The base of acidic soil is highly unsaturated, and the pH is generally between 4.5 and 6; at the same time, iron and aluminum oxides are obviously accumulated, and the soil is acidic and thin. Therefore, in order to make acidic soils usable for crop production, acidic soils must be modified. [0003] Acidic soil improver is a kind of improver that can adjust soil pH. It can improve the physical and chemical properties of soil, promote the activity of microorganisms in the rhizosphere, and promote the insoluble mineral elements in the soil to become soluble nutrients, so as to achieve the effect of fertilizing the soil. [0004] The Chinese patent application with applicati...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05D5/00C05G3/80C05D9/00C05D9/02C05F1/005C05F11/00
Inventor 冯英山曹旺均李一飞许燕飞钟绍松蔡芳龙叶斌陈永忠林永华叶萌陈明光付少华王群英陈仕国
Owner 中国华电集团有限公司
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