CN105237103A - Phosphogypsum soil improver for improving acid soil and preparation method for phosphogypsum soil improver - Google Patents

Phosphogypsum soil improver for improving acid soil and preparation method for phosphogypsum soil improver Download PDF

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Publication number
CN105237103A
CN105237103A CN201510481923.8A CN201510481923A CN105237103A CN 105237103 A CN105237103 A CN 105237103A CN 201510481923 A CN201510481923 A CN 201510481923A CN 105237103 A CN105237103 A CN 105237103A
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China
Prior art keywords
soil
phosphogypsum
parts
improver
powder
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CN201510481923.8A
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Chinese (zh)
Inventor
徐继胜
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ANHUI NEW ZHONGYUAN CHEMICAL Co Ltd
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ANHUI NEW ZHONGYUAN CHEMICAL Co Ltd
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Priority to CN201510481923.8A priority Critical patent/CN105237103A/en
Publication of CN105237103A publication Critical patent/CN105237103A/en
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Abstract

The invention discloses a phosphogypsum soil improver for improving acid soil. The soil improver is prepared from the following raw materials in parts by weight: 23-27 parts of seaweed meal, 16-17 parts of castor cakes, 10-14 parts of diammonium phosphate, 3-5 parts of calcium chloride, 130-150 parts of phosphogypsum, 24-26 parts of red mud, 4-5 parts of copper sulfate,2-3 parts of an EM inoculant, 18-20 parts of biogas residues, 4-6 parts of waste lime peel and a proper amount of water. The phosphogypsum soil improver disclosed by the invention can be used for remarkably reducing the acidity of soil as phosphogypsum in the improver can neutralize aluminum ions in acid soil to generate stable compounds such as AlSO<4+>, AlF<2+>, AlF<+>, and AlF<->, so that the soil improver reduces pollution of soil while the acidity of soil is improved, and moreover, organic matters and beneficial bacteria added into the improver enrich the ecological diversity of soil, thereby providing a technical support to healthy growth of crops.

Description

A kind of phosphogypsum soil improvement agent improving acid soil and preparation method thereof
Technical field
The present invention relates to a kind of soil improvement agent technical field, particularly a kind of phosphogypsum soil improvement agent improving acid soil and preparation method thereof.
Background technology
China is a large agricultural country, along with the development of national economy, agricultural continues to increase the demand of phosphate fertilizer, facilitate developing rapidly of Phosphate Fertilizer Industry, but the simultaneously also a large amount of phosphogypsum of by-product in Wet-process Phosphoric Acid Production, along with the increase of phosphate fertilizer production, the problems such as phosphogypsum contaminate environment, land occupation are also further outstanding.Therefore, the resource utilization of phosphogypsum recycling has important practical significance, and is the needs solving environmental pollution, be also develop a circular economy, the needs of efficent use of resources.
For this reason, current inventor provides a kind of soil improvement agent using phosphogypsum as main raw material(s) and preparation method thereof, rational production technique is utilized to avoid the destruction of phosphogypsum to environment, take full advantage of the element useful to crop soil existed in phosphogypsum simultaneously, strengthen soil quality, delay the degeneration of soil, reduce the pollution of heavy metal, it is made to be widely used in agricultural as the available resource of one, for structure resource-conserving, environmentally friendly harmonious society contribute.
Summary of the invention
The present invention compensate for the deficiencies in the prior art, provides a kind of phosphogypsum soil improvement agent improving acid soil and preparation method thereof.
Technical scheme of the present invention is as follows:
Fertilizer of the present invention is made up of the raw material of following weight part: seaweed powder 23-27, Semen Ricini cake 16-17, diammonium phosphate 10-14, calcium chloride 3-5, phosphogypsum 130-150, red mud 24-26, copper sulfate 4-5, EM microbial inoculum 2-3, natural pond slag 18-20, discarded blue or green lemon skin 4-6, water are appropriate;
The concrete steps of the preparation of described soil improvement agent are as follows:
(1) stir after seaweed powder, Semen Ricini cake, the mixing of natural pond slag and drop in fermentation vat, then add EM microbial inoculum and suitable quantity of water in fermentation vat, keeping fermentation heap water content to be 40-50%, after ferment in the open 13-15 days, fermentation heap is covered plastic film, then the 7-10 days that ferments, obtain tunning for subsequent use;
(2) step one gained tunning is squeezed, obtain fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and calcium chloride, copper sulfate jointly join in fermented liquid, fermented liquid is heated to 80-90 DEG C, continuous stirring 40-60 minute, fermentation chelating liquid is obtained after naturally cooling, for subsequent use;
(3) at 450-550 DEG C, 15-25 minute is calcined after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, dry at again red mud being placed in 180-220 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, diammonium phosphate and step 2 gained ferment slag mixing granulation;
(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 30-40 DEG C, preserve after weighing pack.
The using method of modifying agent of the present invention is used or is used at soil shallow-layer after mixing with fertilizer, and every mu of consumption is 200-300kg.
Beneficial effect of the present invention:
Organic composition can be removed to the calcining of phosphogypsum and red mud in preparation process, avoid secondary pollution, in phosphogypsum, multiple acidic component can be complementary with the strong basicity of red mud simultaneously, regulate the pH value of soil improvement agent, the two can not only improve soil property after being combined, regulation and control P in soil H value, it contains the compositions such as higher Si, Ca, K, P and the required trace element of tens of kinds of farm crop also can promote that crop forms silicified cell, strengthen plant physiology usefulness and anti-adversity, effective raising crop yield, improves the quality of crop.
The use of discarded blue or green lemon skin can increase the content of modifying agent soil ulmin on the one hand, improve reclamation result, its a large amount of citric acids contained can promote the sequestering action of metal-salt and fermented liquid on the other hand, generate the multiple Chelating state nutritive element being easy to plant absorption, increase soil fertility.
Phosphogypsum soil improvement agent of the present invention significantly can reduce the acidity of soil, and this is due to the aluminum ion in the phosphogypsum energy in modifying agent and in acid soil, generates AlSO 4 +, AlF 2+, AlF +and AlF -etc. stable compound, reduce the pollution of Aluminium in Soil while reducing soil acidity, and the organic matter added in modifying agent and probiotics enrich the ecological diversity of soil, for growing up healthy and sound of crop provides technical support.
Specific embodiments
Below in conjunction with following embodiment, the present invention is described in further detail:
The raw material taking following weight (kg) is made: seaweed powder 25, Semen Ricini cake 16, diammonium phosphate 12, calcium chloride 4, phosphogypsum 140, red mud 25, copper sulfate 4, EM microbial inoculum 3, natural pond slag 19, discarded blue or green lemon skin 5, water are appropriate;
The concrete steps of the preparation of described soil improvement agent are as follows:
(1) stir after seaweed powder, Semen Ricini cake, the mixing of natural pond slag and drop in fermentation vat, then add EM microbial inoculum and suitable quantity of water in fermentation vat, keeping fermentation heap water content to be 45%, ferment in the open is after 14 days, fermentation heap is covered plastic film, then ferments 9 days, obtain tunning for subsequent use;
(2) step one gained tunning is squeezed, obtains fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and calcium chloride, copper sulfate jointly join in fermented liquid, fermented liquid is heated to 85 DEG C, continuous stirring 50 minutes, obtains fermentation chelating liquid after naturally cooling, for subsequent use;
(3) calcine 20 minutes at 500 DEG C after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 200 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, diammonium phosphate and step 2 gained ferment slag mixing granulation;
(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 35 DEG C, preserve after weighing pack.
In order to further illustrate using value of the present invention, contriver have chosen one piece of rice test field rice cultivation, be divided into 2 parts of equal areas, before rice cultivation, first portion applies phosphogypsum soil improvement agent of the present invention as experimental group wherein, another part as a control group, then applies the paddy rice Special basal fertilizer of equivalent simultaneously to two groups, carry out fertilizer efficiency mensuration after rice growing every 30 days to the soil of two groups, add up output and disease incidence after rice harves, data are as follows again:
Project Control group Experimental group
Paddy rice mean yield (kg/ mu) 588 644
The average available phosphorus contents of soil (mg/kg) 57.76 64.15
The average quick-acting potassium content of soil (mg/kg) 158.40 164.41
The average alkali-hydrolyzable nitrogen content (mg/kg) of soil 32.89 39.37
Disease incidence (%) 6.6 2.8
After above experimental data can be found out and employs phosphogypsum soil improvement agent of the present invention, during Rice Cropping, the average nutrient content of soil is all greater than control group, the pH value energy stable for extended periods of time state of soil simultaneously, its water-retentivity and nutrient preserving capability are also greatly increased, field disease and pest significantly reduces, improve the output of paddy rice, overall economic efficiency is increased dramatically.

Claims (2)

1. one kind is improved the phosphogypsum soil improvement agent of acid soil, it is characterized in that, be made up of the raw material of following weight part: seaweed powder 23-27, Semen Ricini cake 16-17, diammonium phosphate 10-14, calcium chloride 3-5, phosphogypsum 130-150, red mud 24-26, copper sulfate 4-5, EM microbial inoculum 2-3, natural pond slag 18-20, discarded blue or green lemon skin 4-6, water are appropriate.
2. the phosphogypsum soil improvement agent improving acid soil according to claim 1, it is characterized in that, the concrete steps of preparation method are as follows:
(1) stir after seaweed powder, Semen Ricini cake, the mixing of natural pond slag and drop in fermentation vat, then add EM microbial inoculum and suitable quantity of water in fermentation vat, keeping fermentation heap water content to be 40-50%, after ferment in the open 13-15 days, fermentation heap is covered plastic film, then the 7-10 days that ferments, obtain tunning for subsequent use;
(2) step one gained tunning is squeezed, obtains fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and calcium chloride, copper sulfate jointly join in fermented liquid, fermented liquid is heated to 80-90 DEG C, continuous stirring 40-60 minute, obtains fermentation chelating liquid after naturally cooling, for subsequent use;
(3) at 450-550 DEG C, calcine 15-25 minute after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 180-220 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, diammonium phosphate and step 2 gained ferment slag mixing granulation;
(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 30-40 DEG C, preserve after weighing pack.
CN201510481923.8A 2015-08-07 2015-08-07 Phosphogypsum soil improver for improving acid soil and preparation method for phosphogypsum soil improver Withdrawn CN105237103A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107011913A (en) * 2017-04-18 2017-08-04 广东丰康生物科技有限公司 A kind of acid soil improving agent
CN108480390A (en) * 2018-03-19 2018-09-04 谢永琴 A kind of heavy-metal contaminated soil renovation agent and preparation method thereof
CN109971492A (en) * 2019-05-09 2019-07-05 湖南双晟科技信息咨询有限公司 A kind of soil conditioner and preparation method thereof using red mud preparation
CN112680232A (en) * 2020-12-15 2021-04-20 江苏省环境工程技术有限公司 Preparation method of ecological-friendly soil composite repairing agent

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Publication number Priority date Publication date Assignee Title
JP2007082480A (en) * 2005-09-22 2007-04-05 Nissan Chem Ind Ltd Rice cultivation method using organic fertilizer
CN102321484A (en) * 2011-06-09 2012-01-18 山东省农业科学院农业资源与环境研究所 Organic environmentally-friendly soil conditioner for improving acidified or acid soil
CN104030813A (en) * 2014-06-11 2014-09-10 合肥江氏农业科技有限公司 Active controlled-release composite fertilizer containing wine cellar mud
CN104045487A (en) * 2014-05-28 2014-09-17 马鞍山市心洲葡萄专业合作社 Environmental-protection composite coated fertilizer containing phosphogypsum and preparation method thereof
CN104072269A (en) * 2014-05-30 2014-10-01 明光和中工业工程安装有限公司 Slow-released fertilizer for greening plants and preparation method of fertilizer
CN104609991A (en) * 2014-12-22 2015-05-13 周作艳 A growth promoting liquid fertilizer and a preparing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007082480A (en) * 2005-09-22 2007-04-05 Nissan Chem Ind Ltd Rice cultivation method using organic fertilizer
CN102321484A (en) * 2011-06-09 2012-01-18 山东省农业科学院农业资源与环境研究所 Organic environmentally-friendly soil conditioner for improving acidified or acid soil
CN104045487A (en) * 2014-05-28 2014-09-17 马鞍山市心洲葡萄专业合作社 Environmental-protection composite coated fertilizer containing phosphogypsum and preparation method thereof
CN104072269A (en) * 2014-05-30 2014-10-01 明光和中工业工程安装有限公司 Slow-released fertilizer for greening plants and preparation method of fertilizer
CN104030813A (en) * 2014-06-11 2014-09-10 合肥江氏农业科技有限公司 Active controlled-release composite fertilizer containing wine cellar mud
CN104609991A (en) * 2014-12-22 2015-05-13 周作艳 A growth promoting liquid fertilizer and a preparing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107011913A (en) * 2017-04-18 2017-08-04 广东丰康生物科技有限公司 A kind of acid soil improving agent
CN108480390A (en) * 2018-03-19 2018-09-04 谢永琴 A kind of heavy-metal contaminated soil renovation agent and preparation method thereof
CN108480390B (en) * 2018-03-19 2021-05-07 杭州益壤环境科技集团有限公司 Heavy metal contaminated soil remediation agent and preparation method thereof
CN109971492A (en) * 2019-05-09 2019-07-05 湖南双晟科技信息咨询有限公司 A kind of soil conditioner and preparation method thereof using red mud preparation
CN112680232A (en) * 2020-12-15 2021-04-20 江苏省环境工程技术有限公司 Preparation method of ecological-friendly soil composite repairing agent

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