CN108086297A - A kind of ectopic activities magnesia carbonization curing sludge indigenous method - Google Patents
A kind of ectopic activities magnesia carbonization curing sludge indigenous method Download PDFInfo
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- CN108086297A CN108086297A CN201711194797.3A CN201711194797A CN108086297A CN 108086297 A CN108086297 A CN 108086297A CN 201711194797 A CN201711194797 A CN 201711194797A CN 108086297 A CN108086297 A CN 108086297A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
Abstract
It is carbonized curing sludge indigenous method the invention discloses a kind of ectopic activities magnesia, belongs to the field of water conservancy civil engineering.This method includes mixed mud pretreatment, curing agent, the carbonization of sludge granules, carbon dioxide, exhaust gas/waste collection, the several steps of recycling; curing agent quantity delivered is adjusted by surveying moisture content; grain diameter and pressure carbon dioxide are adjusted according to soil nature, realize the abundant mix of mud and curing agent and the flash carbonization of magnesia curing sludge particle.Dust and carbon dioxide are absorbed in operation process, avoids secondary pollution.This method is simple and direct safely, low-carbon environment-friendly, rate of working continuously height, solve sludge treatment and engineer application problem, mud carbonized particles have many advantages, such as that moisture content is low, hardness is big, shearing strength is high and coefficient of friction is big, it can be used as the fillers such as roadbed, airfield runway, engineering backfill, the recycling of mud/sludge and carbon dioxide in engineering is realized, there is huge engineering construction meaning.
Description
Fields
The present invention relates to a kind of native processing sides of the curing sludge for produced mud in river, lake and building hydraulic engineering
Method.More particularly to a kind of adaptation high-moisture percentage, hypotonicity mud and realization mud and the carbon dioxide resource in engineering construction
Change the ectopic activities magnesia carbonization curing sludge indigenous method recycled.
Background technology
China has a vast territory, and rivers and lakes are numerous, civil engineering construction high speed development, river, lake dredging dredging and
Substantial amounts of mud can be generated during building hydraulic engineering construction, these mud have high moisture content, sticky content height, water penetration
Difference, the features such as mechanics index of physics is poor, some rivers, lake silt even also containing a large amount of organic matters and harmful heavy metal,
It is difficult in engineering directly as filling material, if a large amount of good farmlands can be occupied by not dealt carefully with.Meanwhile the sewage in mud
Underground is easily infiltrated into, causes a series of social concerns such as underground water source pollution.For Silt Soft Groundwork, often adopt at present both at home and abroad
It is handled with the methods of mud disposal is dried or thrown to vacuum preloading precipitation, heat treatment, pump drainage precipitation and curing agent consolidates.Vacuum is pre-
Platen press is to reduce mud water content by atmospheric pressure, is a kind of current more universal physics for improving live mud bearing capacity
Construction method at least needs more than half a year, processing groundwork bearing capacity relatively low yet with this method construction period（It is less than
60kPa）The shortcomings of, this method is made to be difficult to be widely applied；Heat treatment method is to be converted into mud by heating or sintering process
Construction material, this method processing capacity are small, of high cost, it is difficult to which large-scale promotion utilizes；Mud disposal is dried or thrown to precipitation, which to occupy,
A large amount of to stack place, the characteristic of low permeable mud makes the soil of occupancy be difficult to reuse in a short time, so not only increases
Project cost also be easy to cause air pollution and secondary environmental pollution during pump drainage or dystopy landfill；Using curing agent
Curing is most promising treatment technology, i.e., into mud add curing agent be stirred mixing, then progress roping pave or
Preloading consolidates, and then changes the property of mud.
At present both at home and abroad for soil improvement and sludge solidification curing agent mainly have high polymer class, electron ion solution class and
Slag silicate salt etc., these curing agent can improve the compression strength of mud and the soil body.Although high polymer class curing agent is mixed
Amount less, convenient transportation, but cure after the soil body water repelling property it is poor, meet water after intensity can drastically decline；Electron ion solution class is consolidated
Although agent fundamentally changes sludge granules surface nature it is made to tend to hydrophobicity, obtained good intensity and water-resistance
Can, but it is the curing materials complicated components, of high cost, the additive in component is also harmful to environment, easily causes soil and environment is dirty
Dye；Slag silicate salt curing agent is cement, lime or slag class, flyash, slag and clinker etc., such curing agent is single
Using when volume it is larger, be 120-400kg/m3, and cured strength increases limited, only 0.1-0.6MPa, it is difficult to large area
It promotes.Chinese invention patent 201310204944.6 discloses " a kind of Environment-friendlytype type mud solidification method ", i.e., by industrial waste iron
Mine tailings, using the mixture of portland cement and carbide slag as curing agent, are used as aggregate after aggregate and curing agent are mixed
The infinite compression strength of mud significantly improves after the curing process of mud, curing.Based on above-mentioned analysis, these methods are certain
In degree solve engineering construction soil and mud storage problem, but these curing agent there are it is apparent the defects of, i.e.,：Cement is consolidated
It is high there is also consuming energy in production process to change material（Calcining heat is up to 1450 DEG C）, CO2 emissions are big, environmental pollution is tight
The shortcomings of weight.It is growing day by day that the pollutants such as dust and carbon dioxide are discharged in the production of the construction materials such as cement, lime, are
Restrict the barrier of economic environment and socialization steady development.Therefore, seeking the traditional Portland cement of Novel environment-friendlymaterial material replacement is
Material science and the new direction of Environmental Geotechnical circle research at present.
Inventor seminar proposes carbonization mixing pile method and whole carbonizatin method using magnesia to carry out soft foundation
Dam Foundation Strengthened in Situ processing, applied for serial patent of invention, such as：The carbonization curing and its device of a kind of soil
（201010604013.1）, a kind of processing system and method using industrial waste gas thermal consolidating soft soil foundation
（201310122135.0）, a kind of processing system and carbonization pile making method for foundation stabilization（201410203978.8）, one
Bed course carbonization reinforcement means is filled out in changing for kind soft soil foundation（201410272957.1）, a kind of shallow-layer soft foundation in-situ carburization cures
Processing method（201510348797.9）With a kind of carbonization mixing pile-ventilative pipe pile composite foundation and its construction method
（201710225231.6）Deng the similar feature of these patents of invention is using activating oxide as soil body curing agent, is passed through
Carbon dioxide is carbonized to realize the consolidation process of weak foundation soil, has and reinforces speed is fast, intensity is high, environmental benefit is good etc.
Feature meets the development trend of civil engineering green construction.However, these patents of invention are suitable for embankment consolidation in situ,
Consolidation effect is influenced by the soil nature of subsoil soil, moisture content and porosity, and carbon dioxide wastage in work progress
It is larger, there is apparent uneven carbonization, it is difficult to adapt to high-moisture percentage, mud/sludge soil carbonization of hypotonicity is reinforced.
With reference to the characteristics of current mud/sludge characteristics and existing consolidation process technology and problem, built based on China's engineering
If fast-developing present situation, how low-carbon high-efficiency, economically handle mud and in engineering construction, it has also become industry
Problem urgently to be resolved hurrily.
The content of the invention
The present invention is exactly serious, inadaptable high for the existing reinforcement technique carbonization lack of homogeneity that is carbonized, carbon dioxide waste
The problem of moisture content mud etc., provides a kind of ectopic activities magnesia carbonization curing sludge indigenous method, is located in advance by mud
Reason, curing agent are mixed, the carbonization of sludge granules, carbon dioxide, exhaust gas/waste collection, the several steps of recycling, solve height
The problem of moisture content, hypotonicity mud engineer application are difficult, difficulty etc. is reinforced in carbonization, substantially increases the carbonization uniformity, fits
Answer scope more extensive, it is intended to realize that the recycling of mud/sludge and carbon dioxide in engineering construction recycles.
To achieve these goals, the technical solution adopted by the present invention is：A kind of ectopic activities magnesia carbonization, which cures, becomes silted up
Soil method, which is characterized in that comprise the following steps：
A. mud pre-processes：Pending mud is subjected to solid sundries removing in pretreatment unit, then passes through mechanical picker
It carries out silt separation and is dehydrated volume reduction, obtain pretreated water and soil；
B. curing agent is mixed：By the soil obtained after step a with the first curing agent, the second curing agent respectively by corresponding weighing hopper
It drops down onto on conveyer belt, uniform stirring in equal mixing device is fallen by conveyer belt, the soil and the first curing agent, the second curing agent
Ratio is adjusted by gage probe；
C. sludge granules：The material that is stirred after mixing is sent into prilling granulator, is carried out mixture particle and is turned into industry, obtains
Mixture cured granulate；
D. carbon dioxide is carbonized：Mixture cured granulate after step c is sent into and is carbonized on indoor vibrating screen, treats that vibrating screen is spread
Start the carbonization that pressure regulator valve carries out mixture cured granulate after full, generate mud carbonized particles；
E. waste liquid/gas sampling：The carbonized particles generated after collection step d, while by being generated in soda liquor absorption technique flow
Waste liquid and exhaust gas；
F. recycling：The mud carbonized particles obtained after above-mentioned steps as roadbed, airfield runway or engineering are backfilled and are expected
It is recycled.
As a modification of the present invention, pretreated soil obtains moisture by moisture transducer in the step a
Monitor value；Soil, the first curing agent and the second curing agent in the step b is corresponding equipped with gage probe A, metering biography respectively
Sensor B and gage probe C；
First determine that gage probe A to any a reference value, adjusts gage probe B, according to mud further according to moisture monitoring value
Grain target strength and hardness adjust gage probe C.
Another as the present invention improves, and solid sundries are removed by mechanical harrow nail or mechanical picker in the step a；Institute
Silt separation is stated mainly to deaden by mechanical centrifugal or geotechnological mesh bag.
Another as the present invention improves, and first curing agent is anhydrous magnesium chloride or anhydrous magnesium chloride and nothing
The mixture of powders of water calcium chloride, second curing agent are active oxidation magnesium dust or the powder of activated magnesia and calcium oxide
Mixture.
Another improvement as the present invention, it is characterised in that：The mixture cured granulate grain size obtained after the step c
Scope is 1cm -10cm.
As the further improvement of the present invention, the lye in the step e is mainly sodium hydroxide solution.
Compared with prior art, the invention has the advantages that：
（1）Curing agent is flexibly matched with mud, work efficiency higher：Ad hoc gage probe in the mixed step of curing agent, can root
According to the water content of mud, two kinds of curing agent volumes are adjusted in real time, so as to the work efficiency being optimal.
（2）Mixture cured granulate grain size can adjust, and accommodation is more extensive：It, can be in sludge granules step
The grain size of granulated pellet is adjusted according to soil nature, the scope of application of this method is added, solves sludge treatment and engineer application
The problem used in high-moisture percentage mud, operability are stronger.
（3）Curing agent stirs evenly, rate of working continuously height：Two kinds of variety classes curing agent are realized by mixed mixer
With the uniform mixing of mud three；And granulated pellet grain size is adjusted according to soil nature, the follow-up carbonization of particle, several mistakes can be met
Journey can operate continuously, overall operation continuity, integrality higher.
（4）Utilization rate of carbon dioxide is high, carbonization uniformity is good：Using the vibrating screen in mobile carbonizing chamber and carbonizing chamber, make
Magnesia cured granulate can fully be carbonized, and the loss and waste of carbon dioxide when can avoid the in-situ carburization from curing improve dioxy
Change the utilization ratio of carbon, while vibrated by particle, improve the uniformity of the carbonization effect of magnesia curing sludge particle.
（5）High treating effect：The method of the present invention, can be in the short time without conserving for a long time（When small less than 3）Interior completion
It is carbonized and significantly reduces the moisture content of sludge granules, improve the intensity and hardness of sludge granules.
（6）Resource regeneration：Using the present invention by waste silt/Treatment of Sludge be the good civil engineering of engineering properties
Material fills material available for road, dam body, airfield runway, engineering backfill etc..
（7）Environmental protection：It can be reduced using the present invention and mud is generated in engineering because of the occupied a large amount of soils of waste disposal
And the pollution to ambient enviroment；This method using environment-friendly type activated magnesia as main curing agent, fully inhale by carbonization reinforcing process
Great amount of carbon dioxide gas is received, while waste liquid/exhaust gas absorption device is equipped in stirring and carbonisation, whole process has low-carbon
The advantages of environmental protection and sustainable development.
Description of the drawings
Fig. 1 is the structure diagram of activated magnesia carbonization curing sludge soil dystopy processing system；
In figure：1st, pretreatment unit, 2, filter device, 3, water tank, 4, buffering chamber, 5, dredging tube, 6, moisture transducer, 7, carry
Material machine A, 8, weighing hopper A, 9, weighing hopper B, 10, weighing hopper C, 11, gage probe A, 12, gage probe B, 13, metering passes
Sensor C, 14, collection hop controller, 15, conveyer belt, 16, mixed mixer, 17, feed hopper A, 18, equal mixing device, 19, exhaust fan,
20th, purifier, the 21, first holding vessel, the 22, second holding vessel, the 23, first pressure regulator valve, the 24, second pressure regulator valve, 25, pneumatics
Machine, 26, conveying pipeline, 27, feed hopper B, 28, prilling granulator, 29, crane B, 30, feed hopper C, 31, inlet valve, 32, carbonization
Room, 33, vibrating screen, the 34, the 3rd pressure regulator valve, 35, air accumulator, 36, temperature sensor, 37, pressure sensor, 38, control valve,
39th, alkali liquid tank, 40, discharge nozzle, 41, outlet valve, 42, storage bin.
Specific embodiment
Below with reference to drawings and examples, the present invention is described in detail.
Embodiment 1
A kind of ectopic activities magnesia carbonization curing sludge indigenous method, comprises the following steps：
A. mud pre-processes：Pending mud is transported to by transport vehicle or defeated dredge pump in pretreatment unit 1, is carried out successively miscellaneous
Object is removed, silt separation and dehydration volume reduction process, and wherein eliminating impurities are mainly for solid sundries, such as the grass roots in soil and miscellaneous
Object bag, is then turned on silt separation function, separates silt by mechanical picker, finally carries out dehydration volume reduction, makes pretreated
Water and soil are separated and are contained in respectively in water tank 3 and buffering chamber 4；
B. curing agent is mixed：Soil in buffering chamber 4 is transported to by crane A7 in weighing hopper A8, while opens the first pressure regulation
23 and second pressure regulator valve 24 of valve, by the second curing agent in the first curing agent in the first holding vessel 21 and the second holding vessel 22 point
It does not input into weighing hopper B9 and weighing hopper C10, passes through gage probe A11, gage probe B12 and gage probe C13
Soil and curing agent ratio are adjusted, according to the water content of mud, two kinds of curing agent volumes are adjusted in real time, so as to what is be optimal
Work efficiency, matched the soil, the first curing agent and the second curing agent of corresponding proportion respectively from weighing hopper A8, weighing hopper B9 and
It flows out, is all dropped down onto on conveyer belt 15 in weighing hopper C10, fallen from the blanking end of conveyer belt 15 and pass through above equal mixing device 18
Feed hopper A17 fall into equal mixing device 18, mixture carries out uniform stirring in equal mixing device 18, formed it is mixed after stirring
Mixture；Two kinds of variety classes curing agent and the uniform mixing of mud three are realized by mixed mixer 16；And according to
Soil nature adjusts granulated pellet grain size, can meet the follow-up carbonization of particle, and several processes can operate continuously, overall operation continuity,
Integrality higher
C. sludge granules：The material that is stirred after mixing is transferred to by prilling granulator 28 by conveying pipeline 26 and feed hopper B27
In, it carries out mud mixture particle and is turned into industry, sludge granules are turned into industry moves into prilling granulator 28, overcomes previous soil
Because of the shortcomings that humidity is excessively high, original place particle is uneven, according to soil moisture content and the difference of characteristic, can by soil in step b with
The proportion adjustment of two kinds of curing agent preferably carries out granulating work, mixture cured granulate is obtained, convenient for the abundant of next step
Carbonization；
D. carbon dioxide is carbonized：The mixture cured granulate obtained after step c is flowed by crane B29 and feed hopper C30
Onto the vibrating screen 33 in carbonizing chamber 32, inlet valve 31, control valve 38 and outlet valve 41 are closed after vibrating screen 33 is paved with, is opened
3rd pressure regulator valve 34 carries out the carbonization of mixture cured granulate, generates mud carbonized particles；Using mobile carbonizing chamber 32 and carbonization
Vibrating screen 33 in room 32, enables magnesia cured granulate to be fully carbonized, carbon dioxide when can avoid the in-situ carburization from curing
Loss and waste improve the utilization ratio of carbon dioxide, while are vibrated by particle, improve magnesia curing sludge particle
The uniformity for the effect that is carbonized.
E. waste liquid/gas sampling：The carbonized particles generated after collection step d, while by soda liquor absorption technique flow
The waste liquid and exhaust gas of generation；
F. recycling：The mud carbonized particles collected after above-mentioned steps as roadbed, airfield runway or engineering are backfilled and are expected
It is recycled.
This method step is simple to operation, overall flow link up efficiently, it can be achieved that the abundant mix of mud and curing agent with
And the flash carbonization of magnesia curing sludge particle, in the overall process of this method, it can reduce and mud is generated in engineering because useless
The occupied a large amount of soils of disposal are abandoned, while to the less pollution of ambient enviroment, whole process low-carbon environment-friendly and sustainable development.
Embodiment 2
On the basis of embodiment 1, pretreated soil obtains moisture monitoring value, step by moisture transducer 6 in step a
Soil, the first curing agent and the second curing agent in b is corresponding equipped with gage probe A11, gage probe B12 and metering respectively
Sensor C13, first definite gage probe A11 to any a reference value, gage probe B12 is adjusted further according to moisture monitoring value,
Gage probe C13 is adjusted according to sludge granules target strength and hardness；
Specifically, silt soil carbonizing degree and intensity are subject to mud moisture content, sticking grain（Particulate）Content, curing agent volume, ventilation
The factors such as pressure and carbonization time significantly affect.By taking the silt soil of Nanjing, Huaian and Wenzhou Area as an example, the silt soil on three ground
Characteristic is different, then carries out the indoor unit body experiment of magnesia curing sludge soil under different condition.The sample of following experiments is
The side of sample and bottom surface are sealed, gas are made only to lead to from the bottom surface of cylinder sample by the cylinder of diameter 5cm, height 10cm
Gas, every group of experiment perform three parallel tests, and result of the test is the average value of three Duplicate Samples.Table 1 is Nanjing, Huaian and Wenzhou
The Basic Physical Properties index of three ground silt soils, intensity and the test result of carbonation depth are respectively such as table after three kinds of silt soil carbonizations
2nd, table 3 and table 4.
The basic physical index of 1 three kinds of silt soils of table
The carbonization test result of 2 Nanjing silt soil of table
The carbonization test result of 3 Huaian silt soil of table
The carbonization test result of 4 Wenzhou silt soil of table
It, can in above table as can be seen that according to mud soil's water content, sticky content and expected soil particle intensity after pretreatment
Pass through silt soil expected from the different ratio volume of two kinds of curing agent of adjusting, granulation grain size, venting pressure and carbonization time realization
Characteristic.
Meanwhile multiple different mud soil properties, varying environment parameter experiment under, obtained mixture cured granulate grain
Footpath scope is 1cm -10cm, thus when mixture cured granulate particle size range is in 1cm -10cm, coordinates varying environment parameter
With mud soil nature, mud carbonization cures optimal.
Embodiment 3
On the basis of above-described embodiment, solid sundries are removed by mechanical harrow nail or mechanical picker in step a, and silt separation is main logical
It crosses mechanical centrifugal or geotechnological mesh bag deadens, integrated operation is simple, more efficient；
The mixture of powders of anhydrous magnesium chloride or anhydrous magnesium chloride and anhydrous calcium chloride can be used in first curing agent, and second is solid
Agent to select active oxidation magnesium dust or the mixture of powders of activated magnesia and calcium oxide, using environment-friendly type activated magnesia as
Primary curing dose, carbonization reinforcing process can fully absorb great amount of carbon dioxide gas, avoid environmental pollution as far as possible.
Lye in step e can take sodium hydroxide solution, easily obtain and financial cost is not high, no danger easy to use
Property, holistic approach is conserved without long-time, can be completed in a short time, efficiently convenient.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention simply illustrates the present invention described in examples detailed above and specification from the limitation of examples detailed above
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its is equal
Object defines.
Claims (6)
- The curing sludge indigenous method 1. a kind of ectopic activities magnesia is carbonized, which is characterized in that comprise the following steps：A. mud pre-processes：Pending mud is subjected to solid sundries removing in pretreatment unit, then passes through mechanical picker It carries out silt separation and is dehydrated volume reduction, obtain pretreated water and soil；B. curing agent is mixed：By the soil obtained after step a with the first curing agent, the second curing agent respectively by corresponding weighing hopper It drops down onto on conveyer belt, uniform stirring in equal mixing device is fallen by conveyer belt, the soil and the first curing agent, the second curing agent Ratio is adjusted by gage probe；C. sludge granules：The material that is stirred after mixing is sent into prilling granulator, is carried out mixture particle and is turned into industry, obtains Mixture cured granulate；D. carbon dioxide is carbonized：Mixture cured granulate after step c is sent into and is carbonized on indoor vibrating screen, treats that vibrating screen is spread Start the carbonization that pressure regulator valve carries out mixture cured granulate after full, generate mud carbonized particles；E. waste liquid/gas sampling：The carbonized particles generated after collection step d, while by being generated in soda liquor absorption technique flow Waste liquid and exhaust gas；F. recycling：The mud carbonized particles obtained after above-mentioned steps as roadbed, airfield runway or engineering are backfilled and are expected It is recycled.
- The curing sludge indigenous method 2. ectopic activities magnesia according to claim 1 is carbonized, it is characterised in that：Pretreated soil obtains moisture monitoring value by moisture transducer in the step a；Soil, the first curing agent and the second curing agent in the step b is corresponding equipped with gage probe A, measurement sensory respectively Device B and gage probe C；First determine that gage probe A to any a reference value, adjusts gage probe B, according to mud further according to moisture monitoring value Grain target strength and hardness adjust gage probe C.
- The curing sludge indigenous method 3. ectopic activities magnesia according to claim 1 is carbonized, it is characterised in that：The step Solid sundries are removed by mechanical harrow nail or mechanical picker in a；Silt separation mainly by mechanical centrifugal or geotechnological mesh bag every Resistance.
- The curing sludge indigenous method 4. ectopic activities magnesia according to claim 2 is carbonized, it is characterised in that：Described first Curing agent is anhydrous magnesium chloride or the mixture of powders of anhydrous magnesium chloride and anhydrous calcium chloride, and second curing agent is work Property magnesium oxide powder or the mixture of powders of activated magnesia and calcium oxide.
- 5. the ectopic activities magnesia carbonization curing sludge indigenous method according to any claim in claim 1-4, It is characterized in that：The mixture cured granulate particle size range obtained after the step c is 1cm -10cm.
- The curing sludge indigenous method 6. ectopic activities magnesia according to claim 5 is carbonized, it is characterised in that：The step Lye in e is mainly sodium hydroxide solution.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194797.3A CN108086297B (en) | 2017-11-24 | 2017-11-24 | A kind of ectopic activities magnesia carbonization curing sludge indigenous method |
| CH00672/19A CH714568B1 (en) | 2017-11-24 | 2017-12-26 | Treatment system for ex situ carbonization and consolidation of a silt soil using active magnesium oxide and associated process. |
| US16/310,820 US10920390B2 (en) | 2017-11-24 | 2017-12-26 | Treatment system and method for ex-situ carbonization and solidification of silt soil using active magnesium oxide |
| PCT/CN2017/118447 WO2019100512A1 (en) | 2017-11-24 | 2017-12-26 | Treatment system for ex-situ carbonization and solidification of silt soil using active magnesium oxide and method thereof |
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| CN201711194797.3A CN108086297B (en) | 2017-11-24 | 2017-11-24 | A kind of ectopic activities magnesia carbonization curing sludge indigenous method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108555011A (en) * | 2018-06-08 | 2018-09-21 | 南京林业大学 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
| CN108672489A (en) * | 2018-06-08 | 2018-10-19 | 南京林业大学 | A kind of carbonization restorative procedure of volatile organic matter-heavy-metal composite pollution soil |
| CN109629360A (en) * | 2018-11-26 | 2019-04-16 | 温州大学 | The method that clay roadbed is reinforced using carbon sequestration bacterium mineralising |
| CN111333286A (en) * | 2020-03-19 | 2020-06-26 | 大连海事大学 | Method for treating high-water-content sludge in storage yard |
| CN114570754A (en) * | 2021-11-05 | 2022-06-03 | 南京林业大学 | Method for treating low-boiling-point volatile organic polluted soil by using carbon dioxide |
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