CN106211838A - A kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil - Google Patents
A kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil Download PDFInfo
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- CN106211838A CN106211838A CN201610550906.XA CN201610550906A CN106211838A CN 106211838 A CN106211838 A CN 106211838A CN 201610550906 A CN201610550906 A CN 201610550906A CN 106211838 A CN106211838 A CN 106211838A
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- Prior art keywords
- desulfurated plaster
- bentonite
- parts
- soda soil
- salt
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to salt-soda soil correlative technology field, it is specially a kind of desulfurated plaster and bentonite compounds the method improveing salt-soda soil, the parts by weight of each component of its constitutive material are: desulfurated plaster 20 60 parts, bentonite 40 80 parts, adsorbent 4 10 parts, 0.6 1.4 parts of magnesium sulfate, 1.4 1.8 parts of ferrous sulfate, 0 24 parts of carbamide, calcium superphosphate 10 20 parts, the inventive method, by abundant to desulfurated plaster and bentonite mixed grinding, added according to the weight portion of definite proportion row and is sprinkled into soil after being sufficiently mixed.In soil, add magnesium sulfate, ferrous sulfate, carbamide and calcium superphosphate simultaneously, the acidity utilizing magnesium sulfate and ferrous sulfate coordinates the alkalescence of carbamide and calcium superphosphate can improve the Acidity of Aikalinity of soil again, is eventually adding adsorbent and ensures that they can preferably be absorbed by salt-soda soil during using.
Description
Technical field
The present invention relates to salt-soda soil association area, be specifically related to a kind of desulfurated plaster and bentonite compounds improvement salt-soda soil
Method.
Background technology
The middle-and-low-yielding fields of China about 8744.6 ten thousand hectares, salt-soda soil is that in middle-and-low-yielding fields, area is the widest, with the largest potentiality
Farmland, Saline area reaches 6,000,000 hectares, and wherein salt-soda soil, inland area is maximum, in northwest, northeast and the Yellow River
Trip area, accounts for the 69% of the whole nation.Improvement salt-soda soil is significant to Ensuring Food Safety.
At present, the technical measures that improvement salt-soda soil is conventional have hydraulic engineering measure, biological control measure, agronomic measures and chemistry to change
Good measure.Wherein the research of chemical modifying measure alkaline land improving technology at home and abroad is compared universal with application aspect, desulfurization stone
The materials such as cream, ardealite, sulfur, ferrous sulfate are improved materials conventional in the middle of research.Wherein, desulfurated plaster can utilize it
The exchangeable sodium ion on calcium ion displacement soil colloid contained, reduces the basicity of soil, improves the pore structure of soil
And physical property, improve the physical behavior of soil and the crumb structure of soil, reduce the pH value of soil it is considered to be inland is saline and alkaline
The excellent chemical improvement material of ground improvement.Many alkaline land modifying agent patents refer to the application of desulfurated plaster, but in desulfurization
Other materials need to be coordinated jointly to act on during the use of Gypsum Fibrosum could preferably play a role, to this end, it is proposed that a kind of desulfurization stone
Cream and bentonite compound the method in improvement salt-soda soil.
Summary of the invention
The present invention is for overcoming the deficiencies in the prior art, it is provided that a kind of desulfurated plaster and bentonite compound the side in improvement salt-soda soil
The features such as it is more preferable that method, described method have improved effect, more environmentally-friendly.
The present invention adopts the following technical scheme that a kind of desulfurated plaster and the compounding improvement of bentonite are saline and alkaline for achieving the above object
The method on ground, the parts by weight of each component of its constitutive material are: desulfurated plaster 20-60 part, bentonite 40-80 part, adsorbent 4-
10 parts, magnesium sulfate 0.6-1.4 part, ferrous sulfate 1.4-1.8 part, carbamide 0-24 part, calcium superphosphate 10-20 part.
Preferably, described desulfurated plaster is desulfurized gesso of flue gas.
Preferably, the use weight ratio of described magnesium sulfate, ferrous sulfate, carbamide and calcium superphosphate is magnesium sulfate: sulphuric acid is sub-
Ferrum: carbamide: calcium superphosphate is equal to 0.5:0.5:1:1.5.
Preferably, the preparation method of described desulfurated plaster is:
S1: Calx-agstone and water are carried out mix and blend by the weight part ratio of 1:2 or 1:2.5 and makes serosity, quiet
Put reaction three to six hours；
S2: utilize draw-off pump that the serosity that step S1 prepares is pumped into absorption tower, make serosity abundant with the flue gas in absorption tower
Contact mixing, it is ensured that the air blasted under calcium hydroxide in the sulfur dioxide in flue gas and serosity and tower fully reacts generation
Calcium sulfate, calcium sulfite, the solution after question response reaches saturation, discharges it absorption tower；
S3: by the mixed liquor prepared in step S2 through concentrating, dehydration, obtain desulfurization after air-drying at least two ten four hours
Gypsum Fibrosum.
Preferably, described bentonite first passes around mineral acid treatment 30 to six ten minutes, the solution after then processing
Rinse one to two hours through water, be eventually adding adsorbent and prepare bentonite.
Preferably, the parts by weight of each component of its constitutive material are: desulfurated plaster 40 parts, bentonite 60 parts, adsorbent 7
Part, 1 part of magnesium sulfate, 1.6 parts of ferrous sulfate, 12 parts of carbamide, calcium superphosphate 15 parts.
Preferably, described desulfurated plaster and bentonite compound improvement salt-soda soil method step:
S1: desulfurated plaster is ground through Fahrenheit mill, it is ensured that the particle diameters of desulfurated plaster is at two to three millimeters
Between；
S2: bentonite is sequentially passed through graded impact mill and annular grinder is ground, it is ensured that particle diameter is one to two
Between Hao meter；
S3: desulfurated plaster ground to step S1 and S2 and bentonite are fully mixed stirring, in the process of charging
Middle guarantee desulfurated plaster and bentonitic part by weight are 1:1.5 or 1:2, the desulfurated plaster after mixing and bentonite are compounded
It is placed in dry environment standby；
S4: mixing material step S3 prepared uniformly spreads to the salt-soda soil needing improvement, ensures during feeding intake
The injected volume on every mu of ground at ten five to two ten five kilograms, ensure during feeding intake simultaneously magnesium sulfate, ferrous sulfate, carbamide,
Calcium superphosphate, desulfurated plaster and bentonite mixing are thrown in, after input completes, finally by adsorbent by every mu of ground zero five to
Kilogram amount put into need improvement salt-soda soil in.
Preferably, described adsorbent is that powder of straw minces or calcium carbonate.
Compared with prior art, the invention have the advantages that desulfurated plaster and bentonite are mixed by the inventive method to grind
Mill fully, adds according to the weight portion of definite proportion row and is sprinkled into soil after being sufficiently mixed.In soil, add magnesium sulfate, sulphuric acid simultaneously
Ferrous, carbamide and calcium superphosphate, utilize the acidity of magnesium sulfate and ferrous sulfate to coordinate the alkalescence of carbamide and calcium superphosphate permissible again
Improve the Acidity of Aikalinity of soil, be eventually adding adsorbent and ensure that they can preferably be absorbed by salt-soda soil during using.
Detailed description of the invention
The present invention provides a kind of technical scheme: make the technical scheme of this patent further below in conjunction with detailed description of the invention
Explain.
Embodiment 1, a kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil, it is characterised in that: its composition is former
The parts by weight expecting each component are:
Desulfurated plaster 30 parts, bentonite 50 parts, adsorbent 5 parts, 0.7 part of magnesium sulfate, 1.5 parts of ferrous sulfate, 5 parts of carbamide,
Calcium superphosphate 12 parts.
Concrete preparation method comprises the following steps:
S1: desulfurated plaster is ground through Fahrenheit mill, it is ensured that the particle diameters of desulfurated plaster is at two to three millimeters
Between；
S2: bentonite is sequentially passed through graded impact mill and annular grinder is ground, it is ensured that particle diameter is one to two
Between Hao meter；
S3: desulfurated plaster ground to step S1 and S2 and bentonite are fully mixed stirring, in the process of charging
Middle guarantee desulfurated plaster and bentonitic part by weight are 1:1.5, by compounding to the desulfurated plaster after mixing and bentonite be placed in dry
In dry environment standby；
S4: mixing material step S3 prepared uniformly spreads to the salt-soda soil needing improvement, ensures during feeding intake
The injected volume on every mu of ground at ten five to two ten five kilograms, ensure during feeding intake simultaneously magnesium sulfate, ferrous sulfate, carbamide,
Calcium superphosphate, desulfurated plaster and bentonite mixing are thrown in, after input completes, finally by adsorbent by every mu of ground zero five to
Kilogram amount put into need improvement salt-soda soil in.
Embodiment 2, a kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil, it is characterised in that: its composition is former
The parts by weight expecting each component are:
Desulfurated plaster 40 parts, bentonite 60 parts, adsorbent 7 parts, 1 part of magnesium sulfate, 1.6 parts of ferrous sulfate, 12 parts of carbamide, mistake
15 parts of calcium phosphate.
Concrete preparation method comprises the following steps:
S1: desulfurated plaster is ground through Fahrenheit mill, it is ensured that the particle diameters of desulfurated plaster is at two to three millimeters
Between；
S2: bentonite is sequentially passed through graded impact mill and annular grinder is ground, it is ensured that particle diameter is one to two
Between Hao meter；
S3: desulfurated plaster ground to step S1 and S2 and bentonite are fully mixed stirring, in the process of charging
Middle guarantee desulfurated plaster and bentonitic part by weight are 1:2, by compounding to the desulfurated plaster after mixing and bentonite be placed in dry
In environment standby；
S4: mixing material step S3 prepared uniformly spreads to the salt-soda soil needing improvement, ensures during feeding intake
The injected volume on every mu of ground at ten five to two ten five kilograms, ensure during feeding intake simultaneously magnesium sulfate, ferrous sulfate, carbamide,
Calcium superphosphate, desulfurated plaster and bentonite mixing are thrown in, after input completes, finally by adsorbent by every mu of ground zero five to
Kilogram amount put into need improvement salt-soda soil in.
By each composition involved in the inventive method, its main physical index (representative value) is:
The inventive method, by abundant to desulfurated plaster and bentonite mixed grinding, is added fully according to the weight portion of definite proportion row
Soil it is sprinkled into after mixing.In soil, add magnesium sulfate, ferrous sulfate, carbamide and calcium superphosphate simultaneously, utilize magnesium sulfate and sulfur
The acidity of acid ferrous iron coordinates the alkalescence of carbamide and calcium superphosphate can improve the Acidity of Aikalinity of soil again, is eventually adding adsorbent and ensures
They can preferably be absorbed by salt-soda soil during using.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (8)
1. the method that a desulfurated plaster and bentonite compound improvement salt-soda soil, it is characterised in that each component of its constitutive material
Parts by weight are: desulfurated plaster 20-60 part, bentonite 40-80 part, adsorbent 4-10 part, magnesium sulfate 0.6-1.4 part, and sulphuric acid is sub-
Ferrum 1.4-1.8 part, carbamide 0-24 part, calcium superphosphate 10-20 part.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: described
Desulfurated plaster is desulfurized gesso of flue gas.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: described
The use weight ratio of magnesium sulfate, ferrous sulfate, carbamide and calcium superphosphate is magnesium sulfate: ferrous sulfate: carbamide: calcium superphosphate is equal to
0.5:0.5:1:1.5。
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: described
The preparation method of desulfurated plaster is:
S1: by the weight part ratio of 1:2 or 1:2.5, Calx-agstone is carried out mix and blend with water and makes serosity, stands anti-
Answer three to six hours；
S2: utilize draw-off pump that the serosity that step S1 prepares is pumped into absorption tower, allow serosity be fully contacted with the flue gas in absorption tower
Mixing, it is ensured that the air blasted under calcium hydroxide in the sulfur dioxide in flue gas and serosity and tower fully reacts generation sulphuric acid
Calcium, calcium sulfite, the solution after question response reaches saturation, discharges it absorption tower；
S3: by the mixed liquor prepared in step S2 through concentrating, dehydration, obtain desulfurization stone after air-drying at least two ten four hours
Cream.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: described
Bentonite first passes around mineral acid treatment 30 to six ten minutes, and the solution after then processing is little through water rinsing one to two
Time, it is eventually adding adsorbent and prepares bentonite.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: its group
The parts by weight of one-tenth feed components are: desulfurated plaster 40 parts, bentonite 60 parts, adsorbent 7 parts, 1 part of magnesium sulfate, ferrous sulfate
1.6 parts, 12 parts of carbamide, calcium superphosphate 15 parts.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that described
The method step in improvement salt-soda soil:
S1: desulfurated plaster is ground through Fahrenheit mill, it is ensured that the particle diameters of desulfurated plaster is between two to three millimeters；
S2: bentonite is sequentially passed through graded impact mill and annular grinder is ground, it is ensured that particle diameter is at one to two millimeters
Between；
S3: desulfurated plaster ground to step S1 and S2 and bentonite are fully mixed stirring, protects during charging
Card desulfurated plaster is 1:1.5 or 1:2 with bentonitic part by weight, is placed in compounding to the desulfurated plaster after mixing and bentonite
In dry environment standby；
S4: mixing material step S3 prepared uniformly spreads to the salt-soda soil needing improvement, ensures every mu during feeding intake
The injected volume on ground, at ten five to two ten five kilograms, ensures magnesium sulfate, ferrous sulfate, carbamide simultaneously during feeding intake, crosses phosphorus
Acid calcium, desulfurated plaster and bentonite mixing are thrown in, after input completes, finally by adsorbent by every mu of ground zero five to a kilogram
Amount put into need improvement salt-soda soil in.
Desulfurated plaster the most according to claim 1 and bentonite compound the method in improvement salt-soda soil, it is characterised in that: described
Adsorbent is that powder of straw minces or calcium carbonate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550906.XA CN106211838A (en) | 2016-07-11 | 2016-07-11 | A kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil |
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| CN201610550906.XA CN106211838A (en) | 2016-07-11 | 2016-07-11 | A kind of desulfurated plaster and bentonite compound the method in improvement salt-soda soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548219A (en) * | 2020-05-12 | 2020-08-18 | 东营蓝海生态养殖有限公司 | Special desulfurization gypsum fertilizer for saline-alkali soil and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937694A1 (en) * | 1998-02-20 | 1999-08-25 | Fibrophos Limited | Plant nutrient composition and method of manufacture |
| CN1487052A (en) * | 2003-08-20 | 2004-04-07 | 张继忠 | Saline-alkaline land modifier |
| CN101157587A (en) * | 2007-09-21 | 2008-04-09 | 天津市北方绿业生态科技有限公司 | Alkali soil modification fertility intensifying amendment and preparation method thereof |
| CN104017583A (en) * | 2014-05-30 | 2014-09-03 | 天津市农业资源与环境研究所 | Soil conditioner for saline water irrigation of saline-alkali land facility vegetables |
| CN104355943A (en) * | 2014-11-12 | 2015-02-18 | 山西省农业科学院农业环境与资源研究所 | Special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and preparation method thereof |
-
2016
- 2016-07-11 CN CN201610550906.XA patent/CN106211838A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937694A1 (en) * | 1998-02-20 | 1999-08-25 | Fibrophos Limited | Plant nutrient composition and method of manufacture |
| CN1487052A (en) * | 2003-08-20 | 2004-04-07 | 张继忠 | Saline-alkaline land modifier |
| CN101157587A (en) * | 2007-09-21 | 2008-04-09 | 天津市北方绿业生态科技有限公司 | Alkali soil modification fertility intensifying amendment and preparation method thereof |
| CN104017583A (en) * | 2014-05-30 | 2014-09-03 | 天津市农业资源与环境研究所 | Soil conditioner for saline water irrigation of saline-alkali land facility vegetables |
| CN104355943A (en) * | 2014-11-12 | 2015-02-18 | 山西省农业科学院农业环境与资源研究所 | Special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 卢啸风等: "《石灰石湿法烟气脱硫***设备运行与事故处理》", 《石灰石湿法烟气脱硫***设备运行与事故处理》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548219A (en) * | 2020-05-12 | 2020-08-18 | 东营蓝海生态养殖有限公司 | Special desulfurization gypsum fertilizer for saline-alkali soil and preparation method thereof |
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