CN108076713A - Alkali method drops in a kind of salinized soil desalinization of soil by flooding or leaching - Google Patents
Alkali method drops in a kind of salinized soil desalinization of soil by flooding or leaching Download PDFInfo
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- CN108076713A CN108076713A CN201711451637.2A CN201711451637A CN108076713A CN 108076713 A CN108076713 A CN 108076713A CN 201711451637 A CN201711451637 A CN 201711451637A CN 108076713 A CN108076713 A CN 108076713A
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- soil
- flooding
- leaching
- desalinization
- salt water
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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
Abstract
The present invention relates to agricultural technology field, particularly a kind of salinized soil desalinization of soil by flooding or leaching drop alkali method includes the following steps：Step 1) is frozen into salt water ice using irrigation with saline water salt-soda soil and wait；Step 2) carries out radiant heating to the salt water ice；Make the salt water ice-out and infiltrate.The beneficial effects of the present invention are：Using sebific duct instead of traditional hard metal pipe, soft texture be suitable for small space installation, it is wear-resisting, non-conductive it is safe, make it is simple at low cost.
Description
Technical field
The present invention relates to agricultural technology field, particularly a kind of salinized soil desalinization of soil by flooding or leaching drop alkali method.
Background technology
Soil and water salination and alkalization, often the restrictive factor that utilizes of soil development and many countries be especially
It is arid and semi-arid lands, several fluvial-deltas and goes out the not smooth plains region of stream to need urgently to solve the problems, such as.
The global salinized soil gross area about 9.5 × 108hm2, the 7.26% of earth land area is accounted for, the total face of China's salinized soil
Product is 3.6 × 107hm2, wherein soils of north China salination problem and alkalization problem it is apparent.In general, arid biogeographic zone is irrigated
The saliferous degree (irrigation water Mineral Elements are accumulated in upper soll layer) in soil will certainly be increased, unless with good draining
System；Even if but possess good irrigation and drainage system with functions, Soil Desalting process is but often associated with alkalization of soils process.
At present, what is be commonly used in soil drop alkali method is the chemical methodes such as addition desulfurated plaster, and this method is except causing
Outside soil salt increases, improvement cost is also higher.
Microwave technology is technology more popular in recent years, is chiefly used in food processing, industry except fields such as wet purifications.In sea
In water desalination, there are the device desalinated after evaporating the water using microwave technology to heating of seawater through condensing reflux, such as Chinese patent
201320049445.X, for this method by the way of the desalination that gasifies to heating of seawater, shortcoming is to need to consume substantial amounts of water-gas
The heat of transformation, it is substantially little with the traditional technology difference of evaporation heating desalination.In Sea ice, also have and utilize microwave heating sea
The technical method of ice desalination, it is above-mentioned such as Chinese patent 201410103137.X, 201410103255.0,201410103100.7
Method is only limitted to sea ice or the quick desalination technology of salt water ice, belongs to field of sea water desalting technology, and its essence is led with agricultural technology
The soil elution salt technology in domain also has larger difference, particularly with there is difference substantially in soil drop alkali process.
Just because of be that the technical issues of salt and solodization are two differences is controlled in reclamation of salinep-alkali soil method, it is necessary to treat with a certain discrimination,
Therefore even with sea ice mulching soil improvement (Chinese patent, 201010256362.9) or salt water icing irrigation soils improvement side
Alkalization of soils is may also lead in the case of method (Chinese patent, 201110230955.2) or even a large amount of fresh water irrigation salt discharges；
Based on the drawbacks described above mentioned in the prior art, the present invention provides a kind of salinized soil desalinization of soil by flooding or leaching drop alkali method, Neng Goujian
It is single and low cost to solve the problems, such as that alkali drops in the salinized soil desalinization of soil by flooding or leaching.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of salinized soil desalinization of soil by flooding or leaching drop alkali method, solve the arid salt marsh in the north
The problem of changing the difficult regional soil desalinization of soil by flooding or leaching and alkalization of soils has many advantages, such as that method is simple, cost is controllable, is easy to application, is applicable in
Promoted in northern China alkaline land improving, soil remediation and local area ecological service ability etc..
Specific technical solution of the present invention is as follows：
Alkali method drops in a kind of salinized soil desalinization of soil by flooding or leaching, includes the following steps：
Step 1) is frozen into salt water ice using irrigation with saline water salt-soda soil and wait；
Step 2) carries out radiant heating to the salt water ice；Make the salt water ice-out and infiltrate.
Further, the saline groundwater salinity used in the step 1) is less than or equal to 35g/L
Further, the saline groundwater irrigation volume used in the step 1) is more than or equal to 20m3/ mu.
Further, when saline groundwater described in the step 1) is irrigated, soil frozen soil layer thickness is more than 5cm and is less than
50cm。
Further, the radiation source that the step 2) radiant heating uses is the micro- of 1MHz-24.125GHz for frequency
Ripple, radiant power 1kW-20kW.
Further, the radiation source that the step 2) radiant heating uses is the micro- of 915MHz-2450MHz for frequency
Ripple.
Further, any one of the salt water in seawater, saline groundwater, earth's surface salt water, human configuration salt water
Or several arbitrary proportion mixing.
Further, the salinized soil desalinization of soil by flooding or leaching drop alkali method further includes following steps 3)：After the step 2) end of operation,
Upper soll layer is covered.Using materials such as films in overwrite procedure, to reduce soil evaporation to the greatest extent and retain soil moisture.
Preferably, choose the salt water ice thickness as 5-50cm, the radiation source use with 915MHz microwaves, in 20KW work(
Soil desalinization of soil by flooding or leaching drop alkali is quickly handled under the conditions of under rate.
The concrete principle of the present invention is, is to be obtained when serial experiments largely real on the other hand based on microwave treatment salt water ice
Certification of registered capital material finds that salt water ice melts the saline-alkali soil carried out after the specific rule that rapid salt discharge and alkalescence reduction are presented when oozing under microwave
Modification method is innovated.During microwave treatment salt water ice, brine born of the same parents are absorbed heat faster, are caused the duct Rapid Expansion on brine born of the same parents periphery, are melted
It oozing, accelerates the dissolving of ice crystal binding material, melt water pH value, SAR (sodium adsorption ratio) are continuously decreased, the final realization soil desalinization of soil by flooding or leaching,
Alkali drops, spring increases the purpose of moisture in the soil.After microwave radiation heats, salt discharge hole link inside salt water ice, oozing under bittern makes ice face
Color gradually bleaches；Wherein, heating time makes choice according to microwave source watt level, wherein heating time and power, microwave
Frequency is inversely proportional, directly proportional to processing area.
Due to this method, with microwave treatment, this physical method realizes soil desalinization of soil by flooding or leaching drop alkali for the first time, dexterously with salty
Water-ice ice crystal and brine born of the same parents have microwave heat absorption the unique law that bigger difference and alkalescence continuously decrease, and have reached a kind of fantacy not
The soil desalinization of soil by flooding or leaching arrived, the overall effect for dropping alkali, increasing moisture in the soil.Therefore, the present invention is equal to traditional salt-soda soil improving technology and process
There is larger improvement, the R and D of the inventive method will become northern salt-soda soil except alkali, the desalinization of soil by flooding or leaching, spring increase moisture in the soil or salt-soda soil
The most important theories basis of the technologies such as restoration of the ecosystem and support technology.Therefore before the present invention has huge market potential and application
Scape.
The beneficial effects of the present invention are：Solve the arid salination regional soil desalinization of soil by flooding or leaching difficulty in the north and alkalization of soils trend
The problem of exacerbation, has many advantages, such as that method is simple, cost is controllable, is easy to application, and this method changes suitable for northern China salt-soda soil
Good, soil remediation and the promotion of local area ecological service ability etc..This method promotes salt-soda soil reparation and soil amelioration techniques,
The problem of alleviating scarcity of fresh water resources, for improve soil quality, increase Land Productivity, the side such as improve the ecological environment
Face has significant economic, society and environmental benefit.
Description of the drawings
Fig. 1 is that different phase salt water ice melts infiltration salinity altercation schematic diagram under microwave treatment；
Fig. 2 is that different salinity ice melts infiltration sodium adsorption ratio (SAR) change schematic diagram under microwave treatment；
Fig. 3 is that difference pH ice melts infiltration pH value change schematic diagram under microwave treatment.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
As shown in Figs. 1-3, a kind of salinized soil desalinization of soil by flooding or leaching drop alkali method, includes the following steps：
Step 1) is frozen into salt water ice using irrigation with saline water salt-soda soil and wait；
Step 2) carries out radiant heating to the salt water ice；Make the salt water ice-out and infiltrate.
Described in the present embodiment, the saline groundwater salinity used in the step 1) is less than or equal to 35g/L
Described in the present embodiment, the saline groundwater irrigation volume used in the step 1) is more than or equal to 20m3/ mu.
Described in the present embodiment, saline groundwater described in the step 1) irrigate when, soil frozen soil layer thickness be more than 5cm and
Less than 50cm.
Described in the present embodiment, radiation source that the step 2) radiant heating uses is 1MHz- for frequency
The microwave of 24.125GHz, radiant power 1kW-20kW.
Described in the present embodiment, radiation source that the step 2) radiant heating uses is 915MHz- for frequency
The microwave of 2450MHz.
Described in the present embodiment, the salt water appointing in seawater, saline groundwater, earth's surface salt water, human configuration salt water
The one or more of arbitrary proportion mixing of meaning.
Described in the present embodiment, the salinized soil desalinization of soil by flooding or leaching drop alkali method further includes following steps 3)：Step 2) the operation
After, upper soll layer is covered.Using materials such as films in overwrite procedure, to reduce soil evaporation to the greatest extent and retain soil
Earth moisture.
Preferably, choose the salt water ice thickness as 5-50cm, the radiation source use with 915MHz microwaves, in 20KW work(
Soil desalinization of soil by flooding or leaching drop alkali is quickly handled under the conditions of under rate.
The beneficial effects of the present invention are：Solve the arid salination regional soil desalinization of soil by flooding or leaching difficulty in the north and alkalization of soils trend
The problem of exacerbation, has many advantages, such as that method is simple, cost is controllable, is easy to application, and this method changes suitable for northern China salt-soda soil
Good, soil remediation and the promotion of local area ecological service ability etc..This method promotes salt-soda soil reparation and soil amelioration techniques,
The problem of alleviating scarcity of fresh water resources, for improve soil quality, increase Land Productivity, the side such as improve the ecological environment
Face has significant economic, society and environmental benefit.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. alkali method drops in a kind of salinized soil desalinization of soil by flooding or leaching, which is characterized in that includes the following steps：
Step 1) is frozen into salt water ice using irrigation with saline water salt-soda soil and wait；
Step 2) carries out radiant heating to the salt water ice；Make the salt water ice-out and infiltrate.
2. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that used in the step 1) describedly
Lower salt water salinity is less than or equal to 35g/L.
3. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that used in the step 1) describedly
Lower irrigation with saline water amount is more than or equal to 20m3/ mu.
4. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that saline groundwater described in the step 1)
During irrigation, soil frozen soil layer thickness is more than 5cm and less than 50cm.
5. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that the step 2) radiant heating is adopted
Radiation source is the microwave that frequency is 1MHz-24.125GHz, radiant power 1kW-20kW.
6. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that the step 2) radiant heating is adopted
Radiation source is the microwave that frequency is 1MHz-24.125GHz, radiant power 1kW-20kW.
7. alkali method drops in the salinized soil desalinization of soil by flooding or leaching as described in claim 1, which is characterized in that the step 2) radiant heating is adopted
Radiation source is the microwave that frequency is 915MHz-2450MHz.
8. the salinized soil desalinization of soil by flooding or leaching drop alkali method as described in claim 1-7 any one, which is characterized in that the salinized soil desalinization of soil by flooding or leaching
Drop alkali method further includes following steps 3)：After the step 2) end of operation, upper soll layer is covered.
9. the salinized soil desalinization of soil by flooding or leaching drop alkali method as described in 1 or 8 any one of claim, which is characterized in that the salt water is selected from
Any one or a few arbitrary proportion mixing in seawater, saline groundwater, earth's surface salt water, human configuration salt water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451637.2A CN108076713B (en) | 2017-12-27 | 2017-12-27 | Salt-washing and alkali-reducing method for saline soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451637.2A CN108076713B (en) | 2017-12-27 | 2017-12-27 | Salt-washing and alkali-reducing method for saline soil |
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| CN108076713A true CN108076713A (en) | 2018-05-29 |
| CN108076713B CN108076713B (en) | 2021-02-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306317A (en) * | 1991-06-26 | 1994-04-26 | Ryokuei-Kensetsu Co., Ltd. | Device and method for preserving putting green on a golf course |
| CN1669684A (en) * | 2005-04-11 | 2005-09-21 | 中国科学院遗传与发育生物学研究所 | Process for improving alkaline land utilizing bitter natural freezing |
| CN102326503A (en) * | 2011-08-12 | 2012-01-25 | 中国科学院遗传与发育生物学研究所 | Method for planting Chinese tamarisk forest in littoral heavy saline-alkali land through direct cuttage |
| CN103864162A (en) * | 2014-03-19 | 2014-06-18 | 北京师范大学 | Method for desalting sea ice through microwave negative pressure |
| CN105941058A (en) * | 2016-05-31 | 2016-09-21 | 山东胜伟园林科技有限公司 | A method of performing natural soil cultivation on strongly saline-alkaline soil by using nutrient soil capable of improving soil permeability |
-
2017
- 2017-12-27 CN CN201711451637.2A patent/CN108076713B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306317A (en) * | 1991-06-26 | 1994-04-26 | Ryokuei-Kensetsu Co., Ltd. | Device and method for preserving putting green on a golf course |
| CN1669684A (en) * | 2005-04-11 | 2005-09-21 | 中国科学院遗传与发育生物学研究所 | Process for improving alkaline land utilizing bitter natural freezing |
| CN102326503A (en) * | 2011-08-12 | 2012-01-25 | 中国科学院遗传与发育生物学研究所 | Method for planting Chinese tamarisk forest in littoral heavy saline-alkali land through direct cuttage |
| CN103864162A (en) * | 2014-03-19 | 2014-06-18 | 北京师范大学 | Method for desalting sea ice through microwave negative pressure |
| CN105941058A (en) * | 2016-05-31 | 2016-09-21 | 山东胜伟园林科技有限公司 | A method of performing natural soil cultivation on strongly saline-alkaline soil by using nutrient soil capable of improving soil permeability |
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