CN103725289B - Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for acidified soil conditioning agent - Google Patents
Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for acidified soil conditioning agent Download PDFInfo
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- CN103725289B CN103725289B CN201410021039.1A CN201410021039A CN103725289B CN 103725289 B CN103725289 B CN 103725289B CN 201410021039 A CN201410021039 A CN 201410021039A CN 103725289 B CN103725289 B CN 103725289B
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Abstract
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for acidified soil conditioning agent, get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 3-10 order; Liquid phase part after filtering separation is carried out cryogenic vacuum concentrate, the solid content of enriched material is 30%-50%; Enriched material aqua calcis is regulated pH value to 6.5 ± 0.3; In mass ratio the calcined or non-calcined mineral carrier of enriched material 50%-70%, 30%-50% after adjustment pH value is carried out mix, and stir; Described mineral carrier is a kind of or wherein several mixture in calcium oxide powder, magnesia powder, limestone powder, ground dolomite; Low-temperature material after mix is dried to moisture content 20 ± 2%, then sends into granulator; By particle diameter at the particle drying of 1-4mm to moisture content lower than 10%.The present invention, by adding mineral carrier to papermaking-method reconstituted tobaccos waste liquid, has produced the acidified soil conditioning agent of high value, has had less investment, instant effect, the features such as cost is low.
Description
Technical field
The present invention relates to soil and fertilizer preparing technical field, be specially the method utilizing papermaking-method reconstituted tobaccos waste liquid to produce acidified soil conditioning agent.
Background technology
Papermaking-method reconstituted tobaccos is a state-of-the-art technology of tobacco waste comprehensive utilization in the world at present, but because this technology has continued to use the making beating in paper industry, the Technologies such as process of manufacturing paper with pulp and natural extract separation, cause in production process and create a large amount of waste water, all bring serious puzzlement to environment and manufacturing enterprise.Usually often produce the waste water that 1 ton of product need discharge more than 70 tons, but this factory effluent is except the materials such as and tobacco staple fibre organic containing tobacco, the macronutrient also containing applicable crop growths such as a large amount of calcium carbonate, ammonia nitrogen and organophosphoruss.
Acidified soil be pH value lower than 5.5 dyskinetic low productive soil.Soil acidification refers to that soil inside produces and the hydrogen ion of outside input causes the process that soil pH value reduces and degree of base saturation reduces.The process that soil pH reduces, shows as the increase of soil hydrogen ion and aluminum ion quantity.The hydrogen ion of soil acidification outside input mostly is to be pursued high yield and uses the hydrogen ion that physiological acidic fertilizer and acid rain brings into for a long time in a large number.Its principal contradiction is containing 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, and harmful fungi amount reproduction, fungal disease occurs in a large number.In this kind of soil, soil nutrient balance is destroyed, and affects the normal absorption of crop nutrition content moisture.China has more than 400,000,000 mu acidifyings ground at present, and the degree of acidifying expands, transformation acidifying ground the agriculture production amount improving acidifying ground is one of vital task of China's agricultural development.
For this reason, study a kind of method utilizing papermaking-method reconstituted tobaccos waste water to produce acidified soil conditioning agent, tool is of great significance.
Summary of the invention
The object of the invention is the problems such as large for papermaking-method reconstituted tobaccos enterprise wastewater quantity discharged, treatment cost is high, environmental pollution is serious, and containing being applicable to the characteristic such as macronutrient of crop growth, provide a kind of method utilizing papermaking-method reconstituted tobaccos waste liquid to produce acidified soil conditioning agent.
Object of the present invention is achieved through the following technical solutions.
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for acidified soil conditioning agent, method steps is as follows:
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 3-10 order; Described waste liquid is extraction section, the evaporation concentration section that papermaking-method reconstituted tobaccos is produced, the mixed solution of any one section of waste liquid produced of coating section, profiled section of manufacturing paper with pulp or wherein two kinds of waste liquids;
B), after filtering separation, liquid phase part is sent into thickening equipment and carry out cryogenic vacuum and concentrate, the solid content of enriched material is 30%-50%;
C) step b) gained enriched material aqua calcis is regulated pH value to 6.5 ± 0.3;
D) in mass ratio calcined the or non-calcined mineral carrier of enriched material 50%-70%, 30%-50% after adjustment pH value is carried out mix, and stir; Described mineral carrier is a kind of or wherein several mixture in calcium oxide powder, magnesia powder, limestone powder, ground dolomite;
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulator;
F) by particle diameter after granulating at the particle drying of 1-4mm to moisture content lower than 10%.
The pH producing each process section waste discharge due to papermaking-method reconstituted tobaccos is all less than 7, presents slightly acidic, only need regulate pH by lime white, then adds calcined mineral and non-calcined mineral carrier can for the production of acidified soil conditioning agent.
In the inventive method, after concentrated, the usage ratio of papermaking-method reconstituted tobaccos waste liquid is up to 50%-70%, can use papermaking-method reconstituted tobaccos waste liquid in a large number; Obtained acidified soil conditioning agent can significantly reduce solubility H around seed root system
+and AL
3+concentration, reduces H
+and AL
3+concentration to the toxic action of crop, thus promotes the growth of farm crop.The present invention can realize turning waste into wealth, cost-saving, realizes papermaking-method reconstituted tobaccos enterprise sewage zero-discharge.The present invention, by adding mineral carrier to papermaking-method reconstituted tobaccos waste liquid, has produced the acidified soil conditioning agent of high value, has had less investment, instant effect, the features such as cost is low.
Embodiment
Embodiment 1
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for Reyulation agent for saline-alkali soil, concrete steps are as follows:
A) waste liquid getting certain enterprise's papermaking-method reconstituted tobaccos production extraction section generation carries out filtering separation, and filtering mesh number is 5 orders;
B) after filtering separation, liquid phase part is sent into economic benefits and social benefits low-temperature concentration equipment and carry out cryogenic vacuum and concentrate, the vacuum tightness 0.04Mpa that an effect is concentrated, temperature 70 C, the vacuum tightness 0.08Mpa that two effects are concentrated, temperature 60 C, in enriched material, solid content is 35%(g/g);
C) step b) enriched material aqua calcis is regulated pH value to 6.5 ± 0.3;
D) enriched material, carries out mix by the calcined or not calcined mineral carrier of the enriched material 70%, 30% after adjustment pH value in mass ratio, and stirs; The mineral carrier of described 30% by 25% limestone powder (CaCO
3) and 5% commercially available calcium oxide powder (CaO) composition;
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulating disc and granulate;
F) particle diameter after granulation, at the particle rotary drying of 1-4mm, is packed to moisture content lower than 10%.
embodiment 2
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for Reyulation agent for saline-alkali soil, concrete steps are as follows:
A) waste liquid getting certain enterprise's papermaking-method reconstituted tobaccos production coating section and profiled section generation of manufacturing paper with pulp carries out filtering separation, and filtering mesh number is 3 orders;
B) after filtering separation, liquid phase part is sent into economic benefits and social benefits low-temperature concentration equipment and carry out cryogenic vacuum and concentrate, the vacuum tightness 0.04Mpa that an effect is concentrated, temperature 70 C, the vacuum tightness 0.08Mpa that two effects are concentrated, temperature 60 C, in enriched material, solid content is 50%(g/g);
C) enriched material aqua calcis step b) obtained regulates pH value to 6.5 ± 0.3;
D) will the enriched material after pH value be regulated, in mass ratio by 60% enriched material, 40% calcined mineral carrier carry out mix, and to stir; Wherein, the mineral carrier of described 40% comprises 20% ground dolomite (CaMg(CO
3)
2), 10% magnesia powder (MgO), 10% limestone powder (CaCO
3);
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulating disc and granulate;
F) particle diameter after granulation, at the particle rotary drying of 1-4mm, is packed to moisture content lower than 10%.
embodiment 3
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for Reyulation agent for saline-alkali soil, concrete steps are as follows:
A) waste liquid getting certain enterprise's papermaking-method reconstituted tobaccos production process generation carries out filtering separation, and filtering mesh number is 10 orders; Described waste liquid is extraction section, evaporation concentration section, the mixed solution of any one section of waste liquid produced of coating section, profiled section of manufacturing paper with pulp or wherein two kinds of waste liquids;
B) after filtering separation, liquid phase part is sent into economic benefits and social benefits low-temperature concentration equipment and carry out cryogenic vacuum and concentrate, the vacuum tightness 0.04Mpa that an effect is concentrated, temperature 70 C, the vacuum tightness 0.08Mpa that two effects are concentrated, temperature 60 C, in enriched material, solid content is 30%(g/g);
C) step b) gained enriched material aqua calcis is regulated pH value to 6.5 ± 0.3;
D) will the enriched material after pH value be regulated, in mass ratio by 65% enriched material, 35% not calcined mineral carrier carry out mix, and to stir; The mineral carrier of described 35% comprises 10% ground dolomite (CaMg(CO
3)
2), 5% magnesia powder (MgO), 5% calcium oxide powder (CaO), 15% limestone powder CaCO
3;
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulating disc and granulate;
F) particle diameter after granulation, at the particle rotary drying of 1-4mm, is packed to moisture content lower than 10%.
embodiment 4
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for Reyulation agent for saline-alkali soil, concrete steps are as follows:
A) waste liquid getting certain enterprise's papermaking-method reconstituted tobaccos production evaporation concentration section generation carries out filtering separation, and filtering mesh number is 8 orders;
B) after filtering separation, liquid phase part is sent into economic benefits and social benefits low-temperature concentration equipment and carry out cryogenic vacuum and concentrate, the vacuum tightness 0.04Mpa that an effect is concentrated, temperature 70 C, the vacuum tightness 0.08Mpa that two effects are concentrated, temperature 60 C, in enriched material, solid content is 40%(g/g);
C) step b) enriched material aqua calcis is regulated pH value to 6.5 ± 0.3;
D) will the enriched material after pH value be regulated, in mass ratio by 50% enriched material, 50% calcined or non-calcined magnesia powder carry out mix, and to stir;
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulating disc and granulate;
F) particle diameter after granulation, at the particle rotary drying of 1-4mm, is packed to moisture content lower than 10%.
Equipment used in the inventive method such as filter plant, cryogenic vacuum thickening equipment, drying plant, nodulizer etc. all can adopt prior art equipment.
The present invention has prepared reconstituted tobacco waste liquid soil redeposition and can be used for improving acidified soil, improves the potential of hydrogen of rhizosphere soil, improves utilization rate of fertilizer, promotes high crop yield high-quality.Not only solve the problem that reconstituted tobacco manufacturing enterprise production treatment cost of waste liquor is high, decrease environmental pollution, also for agriculture production provides a kind of novel soil improvement product.
Claims (1)
1. utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for acidified soil conditioning agent, it is characterized in that, method steps is as follows:
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 3-10 order; Described waste liquid is extraction section, the evaporation concentration section that papermaking-method reconstituted tobaccos is produced, the mixed solution of any one section of waste liquid produced of coating section, profiled section of manufacturing paper with pulp or wherein two kinds of waste liquids;
B), after filtering separation, liquid phase part is sent into thickening equipment and carry out cryogenic vacuum and concentrate, the solid content of enriched material is 30%-50%;
C) by step b) gained enriched material aqua calcis adjust ph to 6.5 ± 0.3;
D) in mass ratio calcined or non-for enriched material 50%-70%, the 30%-50% after adjust ph calcined mineral carrier is carried out mix, and stir; Described mineral carrier is a kind of or wherein several mixture in calcium oxide powder, magnesia powder, limestone powder, ground dolomite;
E) low-temperature material after mix is dried to moisture content 20 ± 2%, then send into granulator;
F) by particle diameter after granulating at the particle drying of 1-4mm to moisture content lower than 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021039.1A CN103725289B (en) | 2014-01-17 | 2014-01-17 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for acidified soil conditioning agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021039.1A CN103725289B (en) | 2014-01-17 | 2014-01-17 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for acidified soil conditioning agent |
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|---|---|
| CN103725289A CN103725289A (en) | 2014-04-16 |
| CN103725289B true CN103725289B (en) | 2015-11-18 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924183A (en) * | 2012-09-10 | 2013-02-13 | 上海聚华科技股份有限公司 | Method for preparing organic fertilizer through tobacco extracting solution |
-
2014
- 2014-01-17 CN CN201410021039.1A patent/CN103725289B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924183A (en) * | 2012-09-10 | 2013-02-13 | 上海聚华科技股份有限公司 | Method for preparing organic fertilizer through tobacco extracting solution |
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