CN107602300A - Salt-soda soil fertilizer based on coal-fired flue gas desulfurization gypsum and sludge and preparation method thereof - Google Patents
Salt-soda soil fertilizer based on coal-fired flue gas desulfurization gypsum and sludge and preparation method thereof Download PDFInfo
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- CN107602300A CN107602300A CN201710998128.5A CN201710998128A CN107602300A CN 107602300 A CN107602300 A CN 107602300A CN 201710998128 A CN201710998128 A CN 201710998128A CN 107602300 A CN107602300 A CN 107602300A
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Abstract
The invention discloses a kind of salt-soda soil fertilizer based on coal-fired flue gas desulfurization gypsum and sludge and preparation method thereof, include the component of following parts by weight：20 40 parts of coal-fired flue gas desulfurization gypsum；20 40 parts of sewage disposal sludge；40 80 parts of fresh plant discarded object；5 10 parts of ammonium sulfate；Ca in the coal-fired flue gas desulfurization gypsum of the present invention2+And Mg2+The total Sodium by substitution in salt-soda soil has been replaced, so that Sodium by substitution content reduces in salt-soda soil, relatively good soil environment is provided for the normal growth of crop；Sewage disposal sludge contains the substantial amounts of organic matter and nitrogen, phosphorus, potassium nutrition material for containing and enriching, and containing substantial amounts of anaerobic bacteria, is easy to quickly carry out anaerobic fermentation to fertile heap；Fresh plant discarded object powder forms humus through microorganism decomposition, conversion, can improve the buffer capacity of soil, and can act on forming sodium humate with sodium carbonate, reduces surface soil alkalinity；The main raw material(s) of the soil conditioner of the present invention is all derived from agriculture and industry waste, and cost is relatively low, improves the improvement cost and improvement efficiency in salt-soda soil.
Description
Technical field
The present invention relates to a kind of salt-soda soil fertilizer, the fertile preparation method is further related to.
Background technology
The area in Chinese salt-soda soil is very big, has very big developing and utilizingpotentiality.Wherein, beach saline land is that China is important
Salt-soda soil land type, existing more than 18,000 kilometers of coastline, distributing position is wider.
Saline-alkali soil is the general name of solonchak and alkaline earth.Solonchak refers mainly to chloride or the higher salinization soil of sulfate,
Soil is in alkalescence, but pH value is not necessarily very high.Alkaline earth refers to carbonate containing or the phosphatic soil of weight, and pH value is higher, and soil is in
Alkalescence, the content of organic matter of saline-alkali soil is few, and soil fertility is low, and physicochemical character is poor, and the anions and canons being harmful to crop are more, crop
It is not easy to promote seedling.How salt-soda soil is developed, turn into the technical barrier for expanding land resources utilization rate in society now.
With the fast development of China's economy, power consumption also rapid growth.Coal accounts for China's primary energy consumption amount
75%, wherein thermoelectricity is coal-fired account for 1/3 again.To meet environmental requirement, thermal power plant uses desulfurization technology up to standard to realize on a large scale
Discharge, it is 10,000,000 tons or so to produce byproduct coal-fired flue gas desulfurization gypsum year, therefore the amount of by-product desulfurated plaster is very huge,
How to digest these byproducts also turns into technical barrier.
Sewage disposal produces substantial amounts of sludge, and domestic and international sludge treating method, which sketches current sludge treating method, mainly two
Kind：Landfill, burn.Sludge is the byproduct of wastewater treatment process, including residue on sieve, heavy mud, scum silica frost and excess sludge etc..Sludge
Volume accounts for handling 0.3%-0.5% of water or so, and such as waste water progress advanced treating, sludge quantity is also possible to 0.5~l of increase
Times.With increasing for industrial water and domestic water, the amount of black water also gradually increases, and caused sludge quantity is also gradual
Increase.Landfill method receives the limitation of land resource, and sludge incineration is widely used disposal options in recent years, its advantage
It is the minimizing that can realize sludge to greatest extent, there is the characteristics of certain calorific value using sludge, makes flammable useless in sludge
Thing oxidation Decomposition, germ is killed, but the cost of sludge incineration is of a relatively high, is about 2-4 times of other disposal options.
Fresh plant discarded object is discarded object caused by agricultural production, is especially also produced after the processing of farm products such as veterinary antibiotics
The a large amount of discarded objects that can not be handled, regardless of whether being rotted by crop straw burning or stacking, all seriously pollute atmospheric environment.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of special to improve alkaline land soil using agriculture and industry waste
Property based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer.
In order to solve the above technical problems, the technical scheme is that：Salt based on coal-fired flue gas desulfurization gypsum and sludge
Use fertilizer alkali, include the component of following parts by weight：Coal-fired flue gas desulfurization gypsum 20-40 parts；Sewage disposal sludge 20-40 parts；It is fresh
Plant refuse 40-80 parts；Ammonium sulfate 5-10 parts.
As preferable technical scheme, 30 parts of coal-fired flue gas desulfurization gypsum；30 parts of sewage disposal sludge；Fresh plant discarded object
60 parts；8 parts of ammonium sulfate.
As preferable technical scheme, the moisture content of the sewage disposal sludge is less than 80%.
As the improvement to above-mentioned technical proposal, the fresh plant discarded object includes straw, vegetable castoff, fruit
Combination more than one or both of discarded object, mushroom culture medium.
Another technical problem to be solved by this invention is to provide a kind of salt based on coal-fired flue gas desulfurization gypsum and sludge
Use the preparation method of fertilizer alkali.
In order to solve the above technical problems, the technical scheme is that：One kind is based on coal-fired flue gas desulfurization gypsum and sludge
Salt-soda soil fertilizer preparation method, comprise the following steps：
(1) raw material prepares：Fresh plant discarded object is shredded, length is not more than 50mm；
(2) raw material mixes：Coal-fired flue gas desulfurization gypsum, sewage disposal sludge, fresh plant discarded object input are stirred by proportioning
Mix and mixing is stirred in machine, be well mixed each component；
(3) outdoor compost：By well mixed raw material air storage, black plastic film, compost are then covered on fertile heap
20-30 days time；
(4) curing of compost：Compost is opened into black plastic film, ammonium sulfate is proportionally added into after placing 10-20 days and mixes
Uniformly, you can salt-soda soil is applied.
By adopting the above-described technical solution, based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, including with
The component of lower parts by weight：Coal-fired flue gas desulfurization gypsum 20-40 parts；Sewage disposal sludge 20-40 parts；Fresh plant discarded object 40-80
Part；Ammonium sulfate 5-10 parts；Ca in the coal-fired flue gas desulfurization gypsum of the present invention2+And Mg2+The total replacement in salt-soda soil is replaced
Sodium, so that Sodium by substitution content reduces in salt-soda soil, while soil highly basic situation also changes therewith, is the normal growth of crop
Relatively good soil environment is provided；Sewage disposal sludge contains substantial amounts of containing abundant organic matter and nitrogen, phosphorus, potassium nutrition thing
Matter, containing substantial amounts of anaerobic bacteria, it is easy to quickly carry out fertile heap anaerobic fermentation, sludge no longer needs the subsequent treatments such as dehydration, section
The about processing cost of sludge, makes sludge obtain recycling；Fresh plant discarded object powder is through microorganism decomposition, conversion shape
Into humus, the buffer capacity of soil can be improved, and can act on forming sodium humate with sodium carbonate, reduces surface soil alkalinity；Humic
Sour sodium can also stimulate plant growth, strengthen saline-alkaline tolerance；Humus can promote crumb structure to be formed, so that cell size increases,
Water penetration strengthens, and is advantageous to salt leaching, suppresses the accumulation of salt in the surface soil；Fresh plant discarded object powder produces a large amount of organic in decomposable process
Acid, on the one hand on the other hand nutrient can be accelerated to decompose with sweetening of the soil alkalescence, promote effect Nutrient Transformation late, that improves phosphorus has
Effect property；Potassium dihydrogen phosphate promotes plant growth, improves the Salt-endurance of crop, change simultaneously to phosphorus potassium nutrition composition is increased in soil
Become soil salt composition, suppress harmful effect of the salt to plant；Binding agent of the clay as manufacture modifying agent, is easily granulated,
Cost is relatively low；The main raw material(s) of the soil conditioner of the present invention is all derived from agriculture and industry waste, and cost is relatively low, improves saline and alkaline
The improvement cost and improvement efficiency on ground.
Embodiment
With reference to embodiment, the present invention is expanded on further.In the following detailed description, only retouched by way of explanation
Some one exemplary embodiments of the present invention are stated.Undoubtedly, one of ordinary skill in the art will recognize, without departing from
In the case of the spirit and scope of the present invention, the described embodiments may be modified in various different ways.Therefore,
Description below is inherently illustrative, is not intended to limit the scope of the claims.
Embodiment one：It is fertile based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge, include the component of following parts by weight：
30 parts of coal-fired flue gas desulfurization gypsum；30 parts of sewage disposal sludge；60 parts of fresh plant discarded object；8 parts of ammonium sulfate.
A kind of preparation method based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, comprises the following steps：
(1) raw material prepares：Fresh plant discarded object is shredded, length is not more than 50mm；
(2) raw material mixes：Coal-fired flue gas desulfurization gypsum, sewage disposal sludge, fresh plant discarded object input are stirred by proportioning
Mix and mixing is stirred in machine, be well mixed each component；
(3) outdoor compost：By well mixed raw material air storage, black plastic film, compost are then covered on fertile heap
20-30 days time；
(4) curing of compost：Compost is opened into black plastic film, ammonium sulfate is proportionally added into after placing 10-20 days and mixes
Uniformly, you can salt-soda soil is applied.
Embodiment two：It is fertile based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge, include the component of following parts by weight：
40 parts of coal-fired flue gas desulfurization gypsum；40 parts of sewage disposal sludge；40 parts of fresh plant discarded object；5 parts of ammonium sulfate.
The preparation method and embodiment one of the present embodiment are essentially identical, and it is no longer repeated.
Ca in the coal-fired flue gas desulfurization gypsum of the present invention2+And Mg2+The total Sodium by substitution in salt-soda soil has been replaced, so that
Sodium by substitution content reduces in salt-soda soil, while soil highly basic situation also changes therewith, provides and compares for the normal growth of crop
Good soil environment；Sewage disposal sludge contains the substantial amounts of organic matter and nitrogen, phosphorus, potassium nutrition material for containing and enriching, containing big
The anaerobic bacteria of amount, it is easy to quickly carry out fertile heap anaerobic fermentation, sludge no longer needs the subsequent treatments such as dehydration, has saved sludge
Processing cost, sludge is set to have obtained recycling；Fresh plant discarded object powder forms humus through microorganism decomposition, conversion,
The buffer capacity of soil can be improved, and can act on forming sodium humate with sodium carbonate, reduces surface soil alkalinity；Sodium humate can also pierce
Swash plant growth, strengthen saline-alkaline tolerance；Humus can promote crumb structure to be formed, so that cell size increases, water penetration enhancing,
Be advantageous to salt leaching, suppress the accumulation of salt in the surface soil；Fresh plant discarded object powder produces a large amount of organic acids in decomposable process, on the one hand can be with
Sweetening of the soil alkalescence, on the other hand can accelerate nutrient to decompose, and promote effect Nutrient Transformation late, improve P availability；Biphosphate
Potassium promotes plant growth, improves the Salt-endurance of crop to phosphorus potassium nutrition composition is increased in soil, while changes soil salt packet
Into harmful effect of the suppression salt to plant；Binding agent of the clay as manufacture modifying agent, is easily granulated, and cost is relatively low；This hair
The main raw material(s) of bright soil conditioner is all derived from agriculture and industry waste, and cost is relatively low, improves the improvement cost in salt-soda soil
With improvement efficiency.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the scope of the present invention.It is any
Those skilled in the art, made equivalent variations and modification on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should be belonged to.
Claims (5)
1. based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, it is characterised in that：Include the component of following parts by weight：
Coal-fired flue gas desulfurization gypsum 20-40 parts；Sewage disposal sludge 20-40 parts；Fresh plant discarded object 40-80 parts；Ammonium sulfate 5-10 parts.
2. as claimed in claim 1 based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, it is characterised in that：It is coal-fired
30 parts of desulfurized gesso of flue gas；30 parts of sewage disposal sludge；60 parts of fresh plant discarded object；8 parts of ammonium sulfate.
3. as claimed in claim 1 based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, it is characterised in that：It is described
The moisture content of sewage disposal sludge is less than 80%.
4. being existed based on the salt-soda soil of coal-fired flue gas desulfurization gypsum and sludge fertilizer, its feature as described in claim 1,2 or 3
In：The fresh plant discarded object includes straw, vegetable castoff, fruit discarded object, one kind in mushroom culture medium or two
The combination of the kind above.
5. the preparation method of salt-soda soil fertilizer as claimed in claim 1, it is characterised in that：Comprise the following steps：
(1) raw material prepares：Fresh plant discarded object is shredded, length is not more than 50mm；
(2) raw material mixes：Coal-fired flue gas desulfurization gypsum, sewage disposal sludge, fresh plant discarded object are put into mixer by proportioning
In be stirred mixing, be well mixed each component；
(3) outdoor compost：By well mixed raw material air storage, black plastic film, compost time are then covered on fertile heap
20-30 days；
(4) curing of compost：Compost is opened into black plastic film, ammonium sulfate is proportionally added into after placing 10-20 days and is well mixed,
Salt-soda soil can be applied.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998128.5A CN107602300A (en) | 2017-10-24 | 2017-10-24 | Salt-soda soil fertilizer based on coal-fired flue gas desulfurization gypsum and sludge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998128.5A CN107602300A (en) | 2017-10-24 | 2017-10-24 | Salt-soda soil fertilizer based on coal-fired flue gas desulfurization gypsum and sludge and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105961A (en) * | 2019-05-10 | 2019-08-09 | 上海应用技术大学 | A kind of salt-affected soil modifying agent and the method for salt-affected soil improvement |
| CN116267159A (en) * | 2023-05-10 | 2023-06-23 | 河北环境工程学院 | Method for promoting growth of sandy soil tree by using industrial and agricultural wastes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-10-24 CN CN201710998128.5A patent/CN107602300A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105961A (en) * | 2019-05-10 | 2019-08-09 | 上海应用技术大学 | A kind of salt-affected soil modifying agent and the method for salt-affected soil improvement |
| CN116267159A (en) * | 2023-05-10 | 2023-06-23 | 河北环境工程学院 | Method for promoting growth of sandy soil tree by using industrial and agricultural wastes |
| CN116267159B (en) * | 2023-05-10 | 2023-11-03 | 河北环境工程学院 | Method for promoting growth of sandy soil tree by using industrial and agricultural wastes |
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Application publication date: 20180119 |
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