CN103992800A - Method for producing acidification soil conditioner by using filtered mud alcohol waste liquid from carbonatation process sugaring - Google Patents
Method for producing acidification soil conditioner by using filtered mud alcohol waste liquid from carbonatation process sugaring Download PDFInfo
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- CN103992800A CN103992800A CN201410086246.5A CN201410086246A CN103992800A CN 103992800 A CN103992800 A CN 103992800A CN 201410086246 A CN201410086246 A CN 201410086246A CN 103992800 A CN103992800 A CN 103992800A
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Abstract
The invention discloses a method for producing an acidification soil conditioner by using filtered mud alcohol waste liquid from carbonatation process sugaring. The method comprises the following steps: 1) adjusting the filter mud to finally obtain a mixed powder of CaCO3 powder and CaO; 2) filtering and separating the alcohol waste liquid, compressing the filtered alcohol waste liquid, and adjusting the pH value of the concentrated alcohol waste liquid; 3) mixing the mixed powder and magnesium oxide powder into a mineral carrier, and adding the alcohol waste liquid with adjusted pH value into the mineral carrier; and 4) granulating the mineral carrier, and then drying the particle. The invention can realize turning the waste to treasure, save the cost and achieve zero discharge of sewage in carbonatation process sugaring enterprises. 10% of magnesium oxide (MgO) or 10% calcium magnesium phosphate mineral carrier is added into the mud waste liquid from carbonatation process sugaring, so that the method produces the acidification soil conditioner with high value, and has the characteristics of less investment, quick effectiveness and low cost.
Description
Technical field
The present invention relates to soil and fertilizer preparing technical field, specifically utilize carbonatation process sugar mill mud alcohol slops to produce the method for acidified soil amendment.
Background technology
Cane sugar manufacture generally adopts sulfurous method and carbonatation process both at home and abroad, and sulfurous method sugar mill mud organic content is high, is generally used at present production organic fertilizer and biological organic fertilizer and is well utilized.And carbonatation process sugar refining technology cane juice clarification process need add a large amount of calcium hydroxide Ca(OH)
2solution, CO
2, produce CaCO
3colloid, impurity and pigment in precipitation absorption sugarcane juice, to arrive the object of removing nonsugar in sugarcane juice.100 tons of sugarcanes of the every processing of carbonatation process will produce the filter mud of 5 tons, and a big-and-middle-sized sugar enterprise year produces ten thousand tons of filter mud 5-10.The main component of filter mud is CaCO
3, content arrives more than 80%, and organic content is low, and undressed filter mud agricultural value is low, and good terms of settlement is not found in the utilization of carbonatation process filter mud so far.The filter mud that carbonatation process sugar enterprise produces both at home and abroad at present adopts wet row or dry row to process substantially, causes serious pollution to environment.Molasses preparing alcohol is a modern technique of comprehensive utilization of resources, but owing to having produced a large amount of waste water in this technology production process, has all brought serious puzzlement to environment and manufacturing enterprise.1 ton of alcohol of common every production need discharge 70 tons of above useless mash, and this factory effluent, except containing the materials such as sugarcane organic matter and sugarcane staple fibre, also contains the macronutrient of the applicable crop growths such as a large amount of calcium carbonate, ammonia nitrogen and organophosphorus.The pH of waste discharge is all less than 6.5, presents slightly acidic, and by concentrated, lime white regulates pH, then the carbonatation process filter mud that adds calcination as mineral carrier for the production of acidified soil conditioning agent.
Acidified soil is
pHbe worth the obstacle low productive soil lower than 5.5, soil acidification refers to that inner the generation with the outside hydrogen ion of inputting of soil causes soil
pHthe process that value reduces and degree of base saturation reduces.Soil
pHthe process reducing, shows as the increase of soil hydrogen ion and aluminum ion quantity.Soil acidification refers to the inner hydrogen ion and the aluminum ion that refer in the desiliconization allitization effect generation of southern high-temperature area of heavy rainfull of producing of soil, and the hydrogen ion of the outside input of soil acidification refers to use in a large number for a long time for pursuing high yield the hydrogen ion that physiological acidic fertilizer and acid rain are brought into.Its principal contradiction is to contain too much solubility H
+and AL
3+, H in soil
+and AL
3+strength of solution is too high, and crop root growth is suppressed, harmful fungi amount reproduction, and fungal disease occurs in a large number.In this class soil, soil nutrient balance is destroyed, and affects the normal absorption of crop nutrition content moisture.The major cause that causes acidifying land area to expand be southern polyacid rain, irrigation water acidifying, base cation leaching loss amount excessive, use in a large number physiological acidic fertilizer for a long time.China has more than 400,000,000 mu acidifying ground at present, and only just there is the acidified soil of 2,000 ten thousand mu in Yunnan Province, and the degree of acidifying expands, and transformation acidifying ground the agriculture production amount that improves acidifying ground are one of vital tasks of China's agricultural development.
In prior art, have people's using filtrated mud+coal ash+alcohol slops to prepare biological organic fertilizer, but the method is first filter mud, coal ash to be pulverized and to add bacterial classification to ferment in advance, then adds alcohol slops fermentation, the concentrated product that obtains after fermentation.This method is to concentrate waste liquid, and the energy of concentrated required cost is huge, and the effect of the product of acquisition is also bad.
For this reason, study a kind of method of utilizing carbonatation process sugar mill mud alcohol slops to produce acidified soil amendment, tool is of great significance.
Summary of the invention
The object of the invention is for carbonatation process sugar enterprise waste residue, the problem such as wastewater discharge is large, treatment cost is high, environmental pollution is serious, and contain the characteristic such as macronutrient that is applicable to crop growth, a kind of method of utilizing carbonatation process sugar mill mud alcohol slops to produce acidified soil amendment is provided.
For addressing the above problem, the present invention adopts following technical scheme:
Utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment,
Comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 300-500 DEG C, calcining 30-60 minute, makes the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 5-15 order; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, and the solid content of enriched material is 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using the mix of 30%-50% mixture pulvis in step 1) and 0-10% magnesia powder (MgO) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 40%-60% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
As preferred technical scheme, described mineral carrier is limestone powder (CaCO
3), the mixture of calcium oxide powder (CaO) and magnesia powder (MgO).
The invention has the beneficial effects as follows: in the inventive method, the usage ratio of carbonatation process sugar mill mud alcohol slops up to 90%(wherein: filter mud 30%-50%, alcohol slops 40%-60%) can use in a large number carbonatation process sugar mill mud alcohol slops; The acidified soil conditioning agent making can significantly reduce plant seed, root system of plant solubility H around
+and AL
3+concentration, reduces H
+and AL
3+the toxic action of concentration to crop, thereby the growth of promotion farm crop.The present invention can realize turns waste into wealth, cost-saving, realizes carbonatation process sugar enterprise sewage zero-discharge.The present invention, by carbonatation process sugar mill mud waste liquid being added to 10% magnesia powder (MgO) or 10% fused(calcium magnesium)phosphate mineral carrier, has produced the acidified soil conditioning agent of high value, has less investment, instant effect, the feature such as cost is low.
Embodiment
Below the preferred embodiments of the present invention are described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention are made to more explicit defining.
embodiment 1
Utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment,
Comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 300 DEG C, calcine 60 minutes, make the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 5 orders; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, concentrated vacuum tightness 0.04 Mpa of an effect, 70 DEG C of temperature, concentrated vacuum tightness 0.08 Mpa of two effects, 60 DEG C of temperature, concentrated after the solid content of enriched material be 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using 50% mixture pulvis in step 1) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 50% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
Draw through test, example 1 result meets table 1 and requires to conform to.
embodiment 2
Utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment,
Comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 400 DEG C, calcine 45 minutes, make the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 10 orders; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, concentrated vacuum tightness 0.04 Mpa of an effect, 70 DEG C of temperature, concentrated vacuum tightness 0.08 Mpa of two effects, 60 DEG C of temperature, concentrated after the solid content of enriched material be 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using the mix of 30% mixture pulvis in step 1) and 10% magnesia powder (MgO) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 60% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
Draw through test, example 2 results meet table 1 and require to conform to.
embodiment 3
Utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment,
Comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 500 DEG C, calcine 30 minutes, make the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 15 orders; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, concentrated vacuum tightness 0.04 Mpa of an effect, 70 DEG C of temperature, concentrated vacuum tightness 0.08 Mpa of two effects, 60 DEG C of temperature, concentrated after the solid content of enriched material be 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using the mix of 50% mixture pulvis in step 1) and 10% magnesia powder (MgO) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 60% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
Draw through test, example 3 results meet table 1 and require to conform to.
embodiment 4
Utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment,
Comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 400 DEG C, calcine 40 minutes, make the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 7 orders; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, concentrated vacuum tightness 0.04 Mpa of an effect, 70 DEG C of temperature, concentrated vacuum tightness 0.08 Mpa of two effects, 60 DEG C of temperature, concentrated after the solid content of enriched material be 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using the mix of 35% mixture pulvis in step 1) and 5% magnesia powder (MgO) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 55% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
Draw through test, example 4 results meet table 1 and require to conform to.
Table 1 standard-required and sample result
Commercially available calcination of the present invention cross with the mineral carrier of non-calcination can for a kind of in calcium oxide powder (CaO), magnesia powder (MgO), fused(calcium magnesium)phosphate or wherein several mixture all crossed 200 mesh sieves through pulverizing, mineral carrier is commercially available magnesia powder (MgO), fused(calcium magnesium)phosphate; Cross with non-calcination and cross the mineral carrier that mineral and composition thereof were prepared from through pulverizing all 200 mesh sieve techniques through specific calcination.
In the inventive method, equipment used all can adopt prior art equipment as filter plant, cryogenic vacuum thickening equipment, drying plant, pulverizer, nodulizer etc.
The present invention has prepared carbonatation process sugar mill mud alcohol slops and has produced acidified soil amendment, can be used for improving acidified soil, improves the pH value (potential of hydrogen) of rhizosphere soil, improves utilization rate of fertilizer, promotes high crop yield high-quality.Not only solve carbonatation process Closed Circulation in Sugar Production enterprise and produced the high problem of waste residue and liquid processing cost, reduced environmental pollution, also for agriculture production provides a kind of novel soil improvement product
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. utilize carbonatation process sugar mill mud alcohol slops to produce a method for acidified soil amendment, it is characterized in that: comprise the following steps:
1), get the filter mud producing after carbonatation process sugaring, and use the moisture content that filter mud is reduced to filter mud inside by oven drying at low temperature or air-dry mode, make moisture content maintain 3% ± 1%, then, the filter mud reducing after moisture content is passed in brickkiln, keep the calcining temperature of 300-500 DEG C, calcining 30-60 minute, makes the inner contained 5%CaCO of filter mud
3powder is converted into calcium oxide powder (CaO), finally obtains CaCO
3the mixture pulvis of powder and CaO;
2), alcohol slops is carried out to filtering separation, the hole of filtering net is 5-15 order; After filtering separation, liquid portion is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, and the solid content of enriched material is 30%-50%;
3), by step 2) the enriched material aqua calcis that obtains regulates potential of hydrogen, be adjusted to
pH6.5 ± 0.3;
4), using the mix of 30%-50% mixture pulvis in step 1) and 0-10% magnesia powder (MgO) as mineral carrier, and step 3) is regulated
pHenriched material after value adds 40%-60% in mass ratio in mineral carrier, and stirs, and obtains the material after mix;
5), the low-temperature material after the mix obtaining in step 4) is dried to moisture content 20 ± 2%, then send into tablets press and granulate, the particle diameter of made particle is 1mm-4mm;
6), by step 5) in the particle drying that obtains to moisture content lower than 5%.
2. the method for utilizing carbonatation process sugar mill mud alcohol slops to produce acidified soil amendment according to claim 1, is characterized in that: described mineral carrier is limestone powder (CaCO
3), the mixture of calcium oxide powder (CaO) and magnesia powder (MgO).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331368A (en) * | 2014-11-15 | 2016-02-17 | 深圳市芭田生态工程股份有限公司 | Soil conditioner containing water-soluble micromolecular organic matter and preparation method and application thereof |
| CN105367334A (en) * | 2014-11-15 | 2016-03-02 | 深圳市芭田生态工程股份有限公司 | Soil conditioner prepared from natural mineral and organic waste and production method thereof |
| CN105885866A (en) * | 2016-05-20 | 2016-08-24 | 广州甘蔗糖业研究所 | Multi-effect suspended-state acidic soil conditioner and preparation method thereof |
| CN106809866A (en) * | 2017-02-10 | 2017-06-09 | 山东星光生物科技有限公司 | A kind of sugar mill mud high-efficiency comprehensive utilization method and device |
| CN111362764A (en) * | 2020-03-12 | 2020-07-03 | 河南霖牧农业技术有限公司 | Acidic soil improvement material and preparation method thereof |
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| CN106809866A (en) * | 2017-02-10 | 2017-06-09 | 山东星光生物科技有限公司 | A kind of sugar mill mud high-efficiency comprehensive utilization method and device |
| CN111362764A (en) * | 2020-03-12 | 2020-07-03 | 河南霖牧农业技术有限公司 | Acidic soil improvement material and preparation method thereof |
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Effective date of registration: 20200806 Address after: 678000 Majiazhai, Puxiang Town, Longyang District, Baoshan City, Yunnan Province Patentee after: Yunnan Baoshan Shantian bio organic fertilizer Co., Ltd Address before: 652500 Chengjiang County of Yuxi City, Yunnan Province Dragon Street Zhenlong street in front of the village are Sama No. 90 Patentee before: Gao Baozhou |
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