CN112456743A - Method for industrially producing bagged solidified soil by using dredged sludge - Google Patents
Method for industrially producing bagged solidified soil by using dredged sludge Download PDFInfo
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- CN112456743A CN112456743A CN202011425685.6A CN202011425685A CN112456743A CN 112456743 A CN112456743 A CN 112456743A CN 202011425685 A CN202011425685 A CN 202011425685A CN 112456743 A CN112456743 A CN 112456743A
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- 239000010802 sludge Substances 0.000 title claims abstract description 87
- 239000002689 soil Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000009776 industrial production Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 239000005416 organic matter Substances 0.000 claims description 7
- 238000003892 spreading Methods 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 235000012255 calcium oxide Nutrition 0.000 claims description 6
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 6
- 239000003518 caustics Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000010440 gypsum Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 6
- 230000000704 physical effect Effects 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 3
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000002910 solid waste Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- 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
- C02F11/008—Sludge treatment by fixation or solidification
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a method for industrially producing bagged solidified soil by using dredged sludge, which comprises the steps of adding a curing agent into the dredged sludge to form a solidified soil mixture with plasticity and lower strength, bagging to form bagged solidified soil with certain strength and use functions, and carrying out certain production process design to ensure that the bagged solidified soil can be industrially produced. The bagged solidified soil is industrially produced, and the dredging solid waste is produced into a novel green environment-friendly material, so that the problem of shortage and price rise of natural sandstone resources can be solved, and a new way for resource utilization of the dredging waste soil can be found. The industrial production mode greatly improves the treatment efficiency of the dredged sludge and can be matched with large-scale engineering to synchronously provide engineering materials. The industrialized production mode can also reduce the material cost, thereby reducing the construction cost. The invention is simple and controllable, can be massively copied, popularized and applied, improves the utilization rate of solid wastes in China, relieves the environmental protection pressure and saves natural resources.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, material engineering and environmental engineering, in particular to a method for industrially producing bagged solidified soil by using dredged sludge.
Background
China is long in coastline, has numerous rivers, lakes and ports, is the first major dredging country in the world, produces a large amount of dredging sludge every year with annual dredging amount exceeding 10 billion cubic meters, and is increasing continuously. Dredged sludge is used as a bulk solid waste, and the traditional disposal method is abandonment and reclamation by hydraulic filling. The heavy metal content of part of the dredging waste soil exceeds the standard, the organic matter is more, the decomposed pollutants can not be completely absorbed by the ocean, the ocean environment is damaged by throwing and filling the dredging waste soil, and the abandoning area is strictly limited. Reclamation by hydraulic reclamation is a good way of utilizing dredged soil, but the way is sharply reduced along with the gradual enhancement of the national control strength of ocean red lines. A new way for resource utilization of dredged sludge is found, which is a new problem to be solved urgently in the water transportation industry.
Meanwhile, a large amount of sandstone materials are needed for engineering construction, and a large amount of funds have to be invested in the region with deficient sandstone material resources for purchasing and transporting the sandstone materials. With the protection of green water mountains in China, sand and stone mining activities are strictly limited, the price of sand and stone materials rises rapidly, and the engineering construction cost is increased sharply.
If two problems of developing a new green and environment-friendly engineering material and finding a new way for resource utilization of the dredging waste soil are combined, the novel material with certain strength is formed by a curing means, and can be industrially produced in a certain mode so as to reduce the production cost of the material, and can be massively copied, popularized and applied, so that the environmental protection pressure is relieved, natural resources are saved, the environment friendliness is good, the basic national policy of 'environmental protection, resource (resource) saving, great treasure and reasonable land utilization' in China is met, and the engineering cost can be reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for industrially producing bagged solidified soil by using dredged sludge, and the dredged sludge is solidified to form a novel material, so that the effect of recycling a large amount of solid waste is achieved, and the method is applied to engineering construction.
The invention is realized by the following technical scheme:
a method for industrially producing bagged solidified soil by using dredged sludge comprises the following steps:
step 1, building a bagged solidified soil mixing station: the mixing station comprises a capital construction part, a stirring device, a metering device, a curing agent spreading device, a hopper, a sludge conveying system, a curing agent conveying system and a bagged curing soil conveying system;
step 2, manufacturing a solidified soil bag: the solidified soil bag can be made of materials such as woven cloth, plastic flat wire woven geotextile and the like, the size and the shape are designed according to the use requirement, the upper end of the solidified soil bag is opened, and the solidified soil bag is manufactured in batches;
step 3, sampling dredged sludge to perform a physical property test: draining covering water on the surface of the dredged sludge, and sampling every ten thousand cubes of the dredged sludge in the same area for testing, wherein the testing comprises the testing of water content, limit water content, particle content and organic matter content;
step 4, preparing a curing agent: the curing agent comprises cement, quicklime, gypsum, granulated blast furnace slag powder, caustic sludge, calcium lignosulfonate, sodium silicate and the like, and comprises the following components in percentage by weight: 10-60% of cement, 10-30% of quicklime, 5-10% of gypsum, 5-40% of granulated blast furnace slag powder, 5-40% of fly ash, 5-10% of caustic sludge, 1-2% of calcium lignosulfonate and 1-5% of sodium silicate; determining the doping amount of the curing agent and the proportion of various substances in the curing agent according to the physical property test result of the dredged sludge in the step 3;
step 5, mixing: conveying the sludge to a solidified soil mixing station by using a sludge conveying system, and pouring the sludge into a stirring device for mixing for 1 min; meanwhile, the amount of the sludge is measured by using a metering device, the required quality of the curing agent is calculated according to the set mixing amount of the curing agent, the curing agent is conveyed to a spreading device by using a curing agent conveying system, the curing agent is uniformly spread, and the mixture is stirred for 2 min;
step 6, bagging: opening the discharge hopper, dropping the mixed solidified soil mixture into a bag, changing a new bag when the bag is filled to be full, continuously bagging, and sealing the previous bag filled with the solidified soil by using a sealing machine;
step 7, repeating the steps (5) and (6), continuously pouring the sludge and the curing agent into the stirring device, bagging the cured soil mixture and sealing;
and 8, transporting: and conveying the sealed bagged solidified soil away from a solidified soil mixing station by using a conveying system, conveying to a designated place by using a conveying tool, and spraying water or covering a film on the solidified soil bag for moisturizing in the conveying process.
Further, in the step (1), the sludge transportation system, the curing agent transportation system and the bagged cured soil transportation system can be automobiles or conveyer belts, the curing agent transportation system further comprises an air pressure transmission device, spraying holes are arranged along the stirring device every 40cm-60cm, the spraying holes are 40cm-70cm away from the stirring device, and the curing agent is spread into the sludge through the spraying holes. The stirring device is transversely arranged.
In the step (2), the height of the solidified soil bag is 50cm-200cm, the horizontal width is 20cm-150cm, and the tensile strength of the joint of the bag is greater than 90% of that of the material used for the bag.
In the step (3), when the water content exceeds 120%, the drying is carried out until the water content is lower than 120%, and the organic matter content cannot exceed 5%.
Further, in the step (4), when the water content of the sludge is 40% -60%, the mixing amount of the curing agent is 10% -20%; when the water content of the sludge is 60-80%, the mixing amount of the curing agent is 12-30%; when the water content of the sludge is 80-120%, the mixing amount of the curing agent is 20-40%;
when the liquid limit of the sludge is 30-45% or the content of clay (particles with the particle size of not more than 0.005 mm) is 20-30%, the mixing amount of the curing agent is 8-20%; when the liquid limit of the sludge is 45-60% or the content of clay (particles with the particle size of not more than 0.005 mm) is 30-55%, the mixing amount of the curing agent is 10-30%; when the liquid limit of the sludge is more than 60% or the content of clay (particles with the particle diameter of not more than 0.005 mm) is more than 55%, the mixing amount of the curing agent is determined by an indoor mixing ratio test, but the maximum mixing amount is not more than 40%.
Further, in the step (6), the bag is placed on the transportation system, and the bag opening is kept open and aligned with the discharge hopper by the bag support frame, and the bag opening is not more than 40cm away from the lower edge of the discharge hopper.
Further, in the step (7), the sludge and the curing agent are continuously poured into the stirring device, and the time interval cannot exceed 4min, so that the stirring device is prevented from idling.
Further, in the step (8), the time from bagging to transportation to a specified position of the bagged solidified soil does not exceed 24 hours, so that the problem that the engineering quality is affected due to complete loss of shaping of the material in use is avoided. The transportation process should also avoid excessive drying of the exposed surface of the bagged solidified soil, sprinkling water once every 6h or covering with a wet cloth.
The invention has the beneficial effects that:
the invention utilizes the principle that the sludge has reduced fluidity under the action of a curing agent, but still has stronger plasticity in a short time, and the strength is obviously improved and loses the plasticity along with the increase of time, the curing agent is added into the dredging abandoned sludge to form a cured soil mixture with plasticity and lower strength, the mixture is filled into a bag, the bagged cured soil with certain strength and use function is formed after a certain period of age, and the industrialized production can be realized through a certain production process design. The bagged solidified soil is industrially produced, and the dredging solid waste is produced into a novel green environment-friendly material, so that the problem of shortage and price rise of natural sandstone resources can be solved, and a new way for resource utilization of the dredging waste soil can be found. The industrial production mode greatly improves the treatment efficiency of the dredged sludge and can be matched with large-scale engineering to synchronously provide engineering materials. The industrialized production mode can also reduce the material cost, thereby reducing the construction cost. The invention is simple and controllable, can be massively copied, popularized and applied, improves the utilization rate of solid wastes in China, relieves the environmental protection pressure, saves natural resources, has good environmental friendliness, conforms to the basic national policy of 'protecting environment, saving resources (protecting resources), and very valuably and reasonably utilizing land' in China, and has profound economic and social significance.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
A method for industrially producing bagged solidified soil by using dredged sludge comprises the following steps:
step 1, building a bagged solidified soil mixing station: the mixing station comprises a capital construction part, a stirring device, a metering device, a curing agent spreading device, a hopper, a sludge conveying system, a curing agent conveying system and a bagged curing soil conveying system;
step 2, manufacturing a solidified soil bag: the solidified soil bag can be made of materials such as woven cloth, plastic flat wire woven geotextile and the like, the size and the shape are designed according to the use requirement, the upper end of the solidified soil bag is opened, and the solidified soil bag is manufactured in batches;
step 3, sampling dredged sludge to perform a physical property test: draining covering water on the surface of the dredged sludge, and sampling every ten thousand cubes of the dredged sludge in the same area for testing, wherein the testing comprises the testing of water content, limit water content, particle content and organic matter content;
step 4, preparing a curing agent: the curing agent comprises cement, quicklime, gypsum, granulated blast furnace slag powder, caustic sludge, calcium lignosulfonate, sodium silicate and the like, and comprises the following components in percentage by weight: 10-60% of cement, 10-30% of quicklime, 5-10% of gypsum, 5-40% of granulated blast furnace slag powder, 5-40% of fly ash, 5-10% of caustic sludge, 1-2% of calcium lignosulfonate and 1-5% of sodium silicate; determining the doping amount of the curing agent and the proportion of various substances in the curing agent according to the physical property test result of the dredged sludge in the step 3;
step 5, mixing: conveying the sludge to a solidified soil mixing station by using a sludge conveying system, and pouring the sludge into a stirring device for mixing for 1 min; meanwhile, the amount of the sludge is measured by using a metering device, the required quality of the curing agent is calculated according to the set mixing amount of the curing agent, the curing agent is conveyed to a spreading device by using a curing agent conveying system, the curing agent is uniformly spread, and the mixture is stirred for 2 min;
step 6, bagging: opening the discharge hopper, dropping the mixed solidified soil mixture into a bag, changing a new bag when the bag is filled to be full, continuously bagging, and sealing the previous bag filled with the solidified soil by using a sealing machine;
step 7, repeating the steps (5) and (6), continuously pouring the sludge and the curing agent into the stirring device, bagging the cured soil mixture and sealing;
and 8, transporting: and conveying the sealed bagged solidified soil away from a solidified soil mixing station by using a conveying system, conveying to a designated place by using a conveying tool, and spraying water or covering a film on the solidified soil bag for moisturizing in the conveying process.
Further, in the step (1), the sludge transportation system, the curing agent transportation system and the bagged cured soil transportation system can be automobiles or conveyer belts, the curing agent transportation system further comprises an air pressure transmission device, spraying holes are arranged along the stirring device every 40cm-60cm, the spraying holes are 40cm-70cm away from the stirring device, and the curing agent is spread into the sludge through the spraying holes. The stirring device is transversely arranged.
In the step (2), the height of the solidified soil bag is 50cm-200cm, the horizontal width is 20cm-150cm, and the tensile strength of the joint of the bag is greater than 90% of that of the material used for the bag.
In the step (3), when the water content exceeds 120%, the drying is carried out until the water content is lower than 120%, and the organic matter content cannot exceed 5%.
Further, in the step (4), when the water content of the sludge is 40% -60%, the mixing amount of the curing agent is 10% -20%; when the water content of the sludge is 60-80%, the mixing amount of the curing agent is 12-30%; when the water content of the sludge is 80-120%, the mixing amount of the curing agent is 20-40%;
when the liquid limit of the sludge is 30-45% or the content of clay (particles with the particle size of not more than 0.005 mm) is 20-30%, the mixing amount of the curing agent is 8-20%; when the liquid limit of the sludge is 45-60% or the content of clay (particles with the particle size of not more than 0.005 mm) is 30-55%, the mixing amount of the curing agent is 10-30%; when the liquid limit of the sludge is more than 60% or the content of clay (particles with the particle diameter of not more than 0.005 mm) is more than 55%, the mixing amount of the curing agent is determined by an indoor mixing ratio test, but the maximum mixing amount is not more than 40%.
Further, in the step (6), the bag is placed on the transportation system, and the bag opening is kept open and aligned with the discharge hopper by the bag support frame, and the bag opening is not more than 40cm away from the lower edge of the discharge hopper.
Further, in the step (7), the sludge and the curing agent are continuously poured into the stirring device, and the time interval cannot exceed 4min, so that the stirring device is prevented from idling.
Further, in the step (8), the time from bagging to transportation to a specified position of the bagged solidified soil does not exceed 24 hours, so that the problem that the engineering quality is affected due to complete loss of shaping of the material in use is avoided. The transportation process should also avoid excessive drying of the exposed surface of the bagged solidified soil, sprinkling water once every 6h or covering with a wet cloth.
Claims (8)
1. A method for industrially producing bagged solidified soil by using dredged sludge is characterized by comprising the following steps:
step 1, building a bagged solidified soil mixing station: the mixing station comprises a capital construction part, a stirring device, a metering device, a curing agent spreading device, a hopper, a sludge conveying system, a curing agent conveying system and a bagged curing soil conveying system;
step 2, manufacturing a solidified soil bag: the solidified soil bag can be made of materials such as woven cloth, plastic flat wire woven geotextile and the like, the size and the shape are designed according to the use requirement, the upper end of the solidified soil bag is opened, and the solidified soil bag is manufactured in batches;
step 3, sampling dredged sludge to perform a physical property test: draining covering water on the surface of the dredged sludge, and sampling every ten thousand cubes of the dredged sludge in the same area for testing, wherein the testing comprises the testing of water content, limit water content, particle content and organic matter content;
step 4, preparing a curing agent: the curing agent comprises cement, quicklime, gypsum, granulated blast furnace slag powder, caustic sludge, calcium lignosulfonate, sodium silicate and the like, and comprises the following components in percentage by weight: 10-60% of cement, 10-30% of quicklime, 5-10% of gypsum, 5-40% of granulated blast furnace slag powder, 5-40% of fly ash, 5-10% of caustic sludge, 1-2% of calcium lignosulfonate and 1-5% of sodium silicate; determining the doping amount of the curing agent and the proportion of various substances in the curing agent according to the physical property test result of the dredged sludge in the step 3;
step 5, mixing: conveying the sludge to a solidified soil mixing station by using a sludge conveying system, and pouring the sludge into a stirring device for mixing; meanwhile, the amount of the sludge is measured by using a metering device, the required quality of the curing agent is calculated according to the set mixing amount of the curing agent, the curing agent is conveyed to a spreading device by using a curing agent conveying system, the curing agent is uniformly spread into the spreading device, and then the mixture is mixed;
step 6, bagging: opening the discharge hopper, dropping the mixed solidified soil mixture into a bag, changing a new bag when the bag is filled to be full, continuously bagging, and sealing the previous bag filled with the solidified soil by using a sealing machine;
step 7, repeating the steps (5) and (6), continuously pouring the sludge and the curing agent into the stirring device, bagging the cured soil mixture and sealing;
and 8, transporting: and conveying the sealed bagged solidified soil away from a solidified soil mixing station by using a conveying system, conveying to a designated place by using a conveying tool, and spraying water or covering a film on the solidified soil bag for moisturizing in the conveying process.
2. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: in the step (1), the sludge transportation system, the curing agent transportation system and the bagged cured soil transportation system can be automobiles or conveyer belts, the curing agent transportation system also comprises an air pressure transmission device, spray holes are arranged along the stirring device every 40cm-60cm, the distance between each spray hole and the stirring device is 40cm-70cm, and the curing agent is spread into the sludge through the spray holes. The stirring device is transversely arranged.
3. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: and (2) in the step (2), the height of the solidified soil bag is 50cm-200cm, the horizontal width is 20cm-150cm, and the tensile strength of the joint of the bag is greater than 90% of that of the material used for the bag.
4. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: and (3) airing until the water content is lower than 120% and the organic matter content cannot exceed 5% when the water content exceeds 120%.
5. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: in the step (4), when the water content of the sludge is 40-60%, the mixing amount of the curing agent is 10-20%; when the water content of the sludge is 60-80%, the mixing amount of the curing agent is 12-30%; when the water content of the sludge is 80-120%, the mixing amount of the curing agent is 20-40%;
when the liquid limit of the sludge is 30-45% or the content of clay (particles with the particle size of not more than 0.005 mm) is 20-30%, the mixing amount of the curing agent is 8-20%; when the liquid limit of the sludge is 45-60% or the content of clay (particles with the particle size of not more than 0.005 mm) is 30-55%, the mixing amount of the curing agent is 10-30%; when the liquid limit of the sludge is more than 60% or the content of clay (particles with the particle diameter of not more than 0.005 mm) is more than 55%, the mixing amount of the curing agent is determined by an indoor mixing ratio test, but the maximum mixing amount is not more than 40%.
6. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: and (6) placing the bag on a transportation system, keeping the opening of the bag open by using a bag support frame and aligning the bag opening with the discharge hopper, wherein the distance between the bag opening and the lower edge of the discharge hopper is not more than 40 cm.
7. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: and (7) continuously pouring the sludge and the curing agent into the stirring device at a time interval of not more than 4min, so as to avoid idling of the stirring device.
8. The method for the industrial production of bagged solidified soil using dredged sludge according to claim 1, wherein the method comprises the following steps: and (8) in the step, the time from bagging to transportation to a specified position of the bagged solidified soil is not more than 24 hours, so that the problem that the engineering quality is influenced due to the fact that the material is completely lost in shaping during use is avoided. The transportation process should also avoid excessive drying of the exposed surface of the bagged solidified soil, sprinkling water once every 6h or covering with a wet cloth.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673569A (en) * | 2016-12-16 | 2017-05-17 | 南京工业大学 | High-organic-content dredged silt composite curing material |
| CN106836186A (en) * | 2016-12-26 | 2017-06-13 | 福建港湾岩土工程集团有限公司 | A kind of construction technology of utilizing solidified earth from sludge |
| CN106904916A (en) * | 2017-03-20 | 2017-06-30 | 深圳宏业基岩土科技股份有限公司 | One kind fills out extra large cofferdam mold bag curing soil and its preparation method and application method |
| CN109736268A (en) * | 2018-12-26 | 2019-05-10 | 河海大学 | A kind of underwater throwing method of dredged mud using pouch control pollution |
| US20200115875A1 (en) * | 2017-11-24 | 2020-04-16 | Southeast University | Treatment System and Method for Ex-situ Carbonization and Solidification of Silt Soil Using Active Magnesium Oxide |
-
2020
- 2020-12-08 CN CN202011425685.6A patent/CN112456743A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673569A (en) * | 2016-12-16 | 2017-05-17 | 南京工业大学 | High-organic-content dredged silt composite curing material |
| CN106836186A (en) * | 2016-12-26 | 2017-06-13 | 福建港湾岩土工程集团有限公司 | A kind of construction technology of utilizing solidified earth from sludge |
| CN106904916A (en) * | 2017-03-20 | 2017-06-30 | 深圳宏业基岩土科技股份有限公司 | One kind fills out extra large cofferdam mold bag curing soil and its preparation method and application method |
| US20200115875A1 (en) * | 2017-11-24 | 2020-04-16 | Southeast University | Treatment System and Method for Ex-situ Carbonization and Solidification of Silt Soil Using Active Magnesium Oxide |
| CN109736268A (en) * | 2018-12-26 | 2019-05-10 | 河海大学 | A kind of underwater throwing method of dredged mud using pouch control pollution |
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