CN109097053A - A kind of modifying agent suitable for low saline salinity sulfate-salinized soil - Google Patents
A kind of modifying agent suitable for low saline salinity sulfate-salinized soil Download PDFInfo
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- CN109097053A CN109097053A CN201811072491.5A CN201811072491A CN109097053A CN 109097053 A CN109097053 A CN 109097053A CN 201811072491 A CN201811072491 A CN 201811072491A CN 109097053 A CN109097053 A CN 109097053A
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- sulfate
- salinized soil
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- low saline
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention provides a kind of modifying agents suitable for low saline salinity sulfate-salinized soil, the mass fraction of its component and each component are as follows: 20~50 parts of ion type rareearth slag powders, 40~70 parts of activated sludge particles, 2~8 parts of calcium hypochlorite, 2~8 parts of ammonium chloride, 5~25 parts of carclazyte.Modifying agent of the present invention adsorbs sulfate ion and is complexed, the concentration of sulfate ion in salinized soil is effectively reduced using the Absorptive complex wave ability of rare earth element and water suction and the characterization of adsorption of carclazyte, achievees the purpose that improve sulfate-salinized soil.
Description
Technical field
The invention belongs to improvement of salt and alkaline land technical fields, are related to a kind of modifying agent of sulfate-salinized soil, in particular to a kind of
Modifying agent suitable for low saline salinity sulfate-salinized soil.
Background technique
Salinized soil is the general name of solonchak and alkaline earth and various salinization, alkali soil, in general, it is big to work as soluble salt content in ground
In 0.3%, and have it is molten fall into, the engineering characteristics such as salt is swollen, corrosion when, referred to as salinized soil.Salinized soil is as a kind of special soils, extensively
General to be distributed in China each department, the engineering harms such as its molten sunken, salt is swollen, corrosion have seriously threatened engineering construction, right
Improvement of salt and alkaline land has critically important realistic meaning and social value.
The engineering disease of salinized soil can be reduced using improvement of salt and alkaline land agent, the selection of improvement of salt and alkaline land agent must meet salinized soil
Saliferous type, the improvement of sulfate-salinized soil needs to consider the characteristic of sulfate ion, but most of improvement of salt and alkaline land agent at present are equal
Salinized soil mechanical property is improved to overcome the swollen harm of salt of salinized soil by addition skeleton filler, cannot fundamentally improve salt marsh
Soil meets the engineering disease that water generates.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of modifying agent of sulfate-salinized soil, the improvement
Agent carries out absorption and network using the Absorptive complex wave ability of rare earth element and water suction and the characterization of adsorption of carclazyte, to sulfate ion
It closes, the concentration of sulfate ion in salinized soil is effectively reduced, achieve the purpose that improve sulfate-salinized soil.
In order to solve the above-mentioned technical problem, technical scheme is as follows:
A kind of mass fraction of modifying agent suitable for low saline salinity sulfate-salinized soil, its component and each component are as follows:
20~50 parts of ion type rareearth slag powders,
40~70 parts of activated sludge particles,
2~8 parts of calcium hypochlorite,
2~8 parts of ammonium chloride,
5~25 parts of carclazyte.
Preferably, the weight percent of sulfate is less than or equal to 1% in the sulfate-salinized soil.
Preferably, the ion type rareearth slag powders refer to that the partial size after the grinding of ion type rareearth slag is 60~80 purposes
Powder.
Preferably, the activated sludge particles are activated sludge manufactured particles after dehydration is granulated, and the activity is dirty
The moisture content of mud particle is less than 0.5%.
Preferably, the carclazyte is one or two kinds of mixtures of Emathlite, atlapulgite.
Preferably, additive amount of the modifying agent in salinized soil is the 5~20% of salinized soil quality.
Possessed by of the invention the utility model has the advantages that
(1) modifying agent of the present invention fully utilizes the Absorptive complex wave ability of rare earth element and the water suction of carclazyte and absorption is special
Property, sulfate ion is adsorbed and is complexed, the concentration of sulfate ion in salinized soil is effectively reduced, reaches improvement sulfate
The purpose of stain soil；
(2) it is added to activated sludge particles, calcium hypochlorite and ammonium chloride in modifying agent of the present invention, has built faintly acid ring
Border, in acidic environment, rare earth element and sulfate radical form stable complexing body and exist, and facilitate the strong network for playing rare earth element
Close adsorption capacity；
(3) a large amount of activated sludge are utilized in modifying agent of the present invention, are an approach of activated sludge waste utilization；
(4) carclazyte in modifying agent component of the present invention can receive portion of water, and can adsorb sulfate ion, right
Sulfate-salinized soil has preferable improved effect.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention is further illustrated.It should be appreciated that described herein, the examples are only for explaining the invention, and
It is not used in the restriction present invention.
Embodiment 1
A kind of quality of modifying agent suitable for low saline salinity sulfate-salinized soil, its component and each component are as follows:
Ion type rareearth slag powders 28Kg,
Activated sludge particles 52Kg,
Calcium hypochlorite 4Kg,
Ammonium chloride 4Kg,
Emathlite 12Kg.
Wherein, the weight percent of sulfate is less than or equal to 1% in the sulfate-salinized soil, the ion type rareearth slag
Powder refers to that the partial size after the grinding of ion type rareearth slag is 60~80 mesh powders, and the activated sludge particles are activated sludge warps
Manufactured particle after dehydration is granulated is crossed, the moisture content of the activated sludge particles is less than 0.5%.
In order to verify the effect of the present embodiment, the present embodiment modifying agent 8Kg is added in 92Kg sulfate-salinized soil, stirring is equal
It is even, it is put into compaction test apparatus and hits reality, take 61.8mm (diameter) × 20mm (height) test specimen using cutting ring, test specimen is placed in constant temperature and humidity
7d is conserved in curing box (20 DEG C of temperature, humidity 90%), test specimen is made, and then tests the Salt heaving rate of test specimen, Salt heaving rate test side
Method is as follows: test specimen is placed in the dilatometer of the model WZ-2 type of Co., Ltd of Nanjing Soil Apparatus Factory production, it then will be swollen
Swollen instrument is put into temperature, for 24 hours after, record dilatometer pointer registration.Sulfate-salinized soil is calculated as follows
Salt heaving rate:
In formula: e is Salt heaving rate, %；T is dial gauge end readout, mm；T is dial gauge initial reading, mm；H is that test specimen is initially high
Degree, mm.
Salt heaving rate is as the result is shown: not plus the Salt heaving rate of the salinized soil of the present embodiment modifying agent is 2.3%, is added to this implementation
The Salt heaving rate of the salinized soil of example modifying agent is reduced to 0.3%.As it can be seen that salt marsh can be effectively reduced in the addition of the present embodiment modifying agent
The swollen harm of salt of soil.
Embodiment 2
A kind of quality of modifying agent suitable for low saline salinity sulfate-salinized soil, its component and each component are as follows:
Ion type rareearth slag powders 42Kg,
Activated sludge particles 40Kg,
Calcium hypochlorite 5Kg,
Ammonium chloride 5Kg,
Emathlite 8Kg.
In order to verify the effect of the present embodiment, the present embodiment modifying agent 8Kg is added in 92Kg sulfate-salinized soil, according to reality
The method for applying example 1 prepares test specimen and tests Salt heaving rate, and test result is shown: being added to the salt of the salinized soil of the present embodiment modifying agent
Swollen rate is reduced to 0.25%.As it can be seen that the swollen harm of salt of salinized soil can be effectively reduced in the addition of the present embodiment modifying agent.
Embodiment 3
A kind of quality of modifying agent suitable for low saline salinity sulfate-salinized soil, its component and each component are as follows:
Ion type rareearth slag powders 42Kg,
Activated sludge particles 40Kg,
Calcium hypochlorite 5Kg,
Ammonium chloride 5Kg,
Emathlite 8Kg.
In order to verify the effect of the present embodiment, the present embodiment modifying agent 5Kg is added in 95Kg sulfate-salinized soil, according to reality
The method for applying example 1 prepares test specimen and tests Salt heaving rate, and test result is shown: being added to the salt of the salinized soil of the present embodiment modifying agent
Swollen rate is reduced to 0.32%.As it can be seen that the swollen harm of salt of salinized soil can be effectively reduced in the addition of the present embodiment modifying agent.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of modifying agent suitable for low saline salinity sulfate-salinized soil, which is characterized in that the quality of its component and each component
Number are as follows:
20~50 parts of ion type rareearth slag powders,
40~70 parts of activated sludge particles,
2~8 parts of calcium hypochlorite,
2~8 parts of ammonium chloride,
5~25 parts of carclazyte.
2. the modifying agent according to claim 1 suitable for low saline salinity sulfate-salinized soil, which is characterized in that the sulfuric acid
The weight percent of sulfate is less than or equal to 1% in salinized soil.
3. the modifying agent according to claim 1 suitable for low saline salinity sulfate-salinized soil, which is characterized in that the ion
Type rare earth slag powders refer to that the partial size after the grinding of ion type rareearth slag is 60~80 mesh powders.
4. the modifying agent according to claim 1 suitable for low saline salinity sulfate-salinized soil, which is characterized in that the activity
Mud granule is activated sludge manufactured particle after dehydration is granulated, and the moisture content of the activated sludge particles is less than 0.5%.
5. the modifying agent according to claim 1 suitable for low saline salinity sulfate-salinized soil, which is characterized in that the carclazyte
For Emathlite, one or two kinds of mixtures of atlapulgite.
6. the modifying agent according to claim 1 suitable for low saline salinity sulfate-salinized soil, which is characterized in that the improvement
Additive amount of the agent in salinized soil is the 5~20% of salinized soil quality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811072491.5A CN109097053A (en) | 2018-09-14 | 2018-09-14 | A kind of modifying agent suitable for low saline salinity sulfate-salinized soil |
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| CN201811072491.5A CN109097053A (en) | 2018-09-14 | 2018-09-14 | A kind of modifying agent suitable for low saline salinity sulfate-salinized soil |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010549A (en) * | 2016-05-20 | 2016-10-12 | 新疆金兰德泰环保科技有限公司 | Soil amendment for improving saline-alkali soil |
| CN107384418A (en) * | 2017-07-18 | 2017-11-24 | 成都新柯力化工科技有限公司 | A kind of soil fixing restoration of the ecosystem agent and preparation method |
-
2018
- 2018-09-14 CN CN201811072491.5A patent/CN109097053A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010549A (en) * | 2016-05-20 | 2016-10-12 | 新疆金兰德泰环保科技有限公司 | Soil amendment for improving saline-alkali soil |
| CN107384418A (en) * | 2017-07-18 | 2017-11-24 | 成都新柯力化工科技有限公司 | A kind of soil fixing restoration of the ecosystem agent and preparation method |
Non-Patent Citations (3)
| Title |
|---|
| 周正立等: "《污水处理剂与污水检测技术》", 31 March 2007, 中国建材工业出版社 * |
| 李晨等: "粒化高炉矿渣微粉对固化土特性影响研究", 《地下空间与工程学报》 * |
| 黄礼煌: "《稀土提取技术》", 30 June 2006, 冶金工业出版社 * |
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