CN115745503A - High-water-content sludge curing agent based on industrial waste residues after acid treatment and preparation method and application thereof - Google Patents
High-water-content sludge curing agent based on industrial waste residues after acid treatment and preparation method and application thereof Download PDFInfo
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- CN115745503A CN115745503A CN202211535191.2A CN202211535191A CN115745503A CN 115745503 A CN115745503 A CN 115745503A CN 202211535191 A CN202211535191 A CN 202211535191A CN 115745503 A CN115745503 A CN 115745503A
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- 239000002440 industrial waste Substances 0.000 title claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 47
- 239000010802 sludge Substances 0.000 title claims abstract description 37
- 238000010306 acid treatment Methods 0.000 title claims description 12
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 65
- 239000002253 acid Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 29
- 239000004568 cement Substances 0.000 claims abstract description 26
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 22
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 20
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 17
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 11
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000002699 waste material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000003723 Smelting Methods 0.000 claims description 10
- 239000002910 solid waste Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a curing agent for high-water-content sludge, which consists of the following components in parts by weight: 500-550 parts of P.O 42.5 cement, 200-250 parts of acid-treated industrial waste slag powder, 150-250 parts of lithium slag powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducing agent; the acid-treated industrial waste residue powder is particles with a porous structure, and the specific surface area is 600-700m 2 Kg, and comprises the following components in percentage by weight: 46-52% SiO 2 8-12% of FeSO 4 20-28% of Al 2 O 3 16-22% of CaSO 4 . The invention also provides a preparation method of the curing agent and application of the curing agent in curing treatment of high-water-content sludge. The invention uses two kinds of industrial waste residues, has the effects of environmental protection and energy saving, and the curing agent has the advantages of simple processing technology, convenient use and better curing effect on sludge with high water content.
Description
Technical Field
The invention relates to the field of solid waste utilization, in particular to a sludge curing agent with high water content prepared from industrial waste residues after acid treatment, and a preparation method and application thereof.
Background
The industrial waste residue refers to solid waste discharged in the industrial production process, and mainly comprises metallurgical waste residue, mining waste residue, fuel waste residue, chemical waste residue and the like. The industrial waste residue stocked in China is huge and still grows at a fast speed every year, and serious waste of renewable resources and land resources is caused. Although research on recycling of industrial waste residues has been advanced, a considerable part of treatment methods have problems of high energy consumption and secondary solid waste generation.
The silt is more common in the construction of subgrade and pile foundation, and for the silt with higher water content, in order to meet the requirements of the working performance and the mechanical property of the construction, a large amount of hydraulic materials such as cement, lime and the like are usually added into the silt, but the construction cost is undoubtedly increased by using a large amount of cement and lime.
Based on the above requirements of solid waste utilization and sludge solidification, many proposals have been made on the preparation of sludge solidifying agent from industrial waste slag in the prior art, for example, chinese patent documents CN101863609A, CN112374711A, CN102060480A, CN105271630A, CN109678446A, CN 10669872A, etc. Industrial waste residues are utilized in the curing agents to different degrees, so that the aims of consuming solid waste inventory, releasing land resources, reducing the using amount of cement and lime in the curing agents and reducing production cost and energy consumption can be fulfilled to a certain degree, but the curing effects of the curing agents mentioned in the two patent documents CN101863609A and CN112374711A are greatly influenced by environmental temperature and humidity, and are not beneficial to industrial popularization and application; the moisture content of the solidified sludge in the patent document CN102060480A is only 30%, and the method is not suitable for solidification of sludge with high moisture content. In addition, the strength of the sludge treated by the existing curing agents is slowly increased after curing, and projects with high requirements on bearing capacity cannot be continuously constructed.
Disclosure of Invention
The invention aims to find an industrial waste residue application method which can give full play to the characteristics of industrial waste residue so as to realize the efficient utilization of the industrial waste residue.
In order to achieve the above purpose, the inventors of the present invention have conducted extensive experimental studies, and found that the acid-treated industrial waste residue can be used for preparing a curing agent for sludge with high water content, and can achieve a desired curing effect.
Based on the discovery, the invention provides a method for preparing a sludge curing agent with high water content by using industrial waste residues after acid treatment, which comprises the following steps:
(1) Placing the acid-treated industrial waste residue into a ball mill for grinding for 20-30min to obtain waste residue powder;
(2) Mixing and homogenizing 500-550 parts of P & O42.5 cement, 200-250 parts of the obtained waste slag powder (1), 150-250 parts of lithium slag powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducer in parts by weight; and obtaining the curing agent for the sludge with high water content.
In the method, the acid-treated industrial waste residue refers to acid-treated industrial waste residue obtained by putting composite non-ferrous smelting solid waste such as copper pole mud, zinc slag and the like into an oxygen-enriched smelting tank to extract rare metals, reacting in a waste acidic solution containing sulfuric acid, and then washing and precipitating. In the acid-treated industrial waste residue, siO 2 46-52% of FeSO 4 8-12% of Al 2 O 3 20-28% of CaSO 4 The mass percentage of (B) is 16-22%. The initial iron content of the industrial waste residue is high, and a plurality of pore structures are formed on the surface and inside of the industrial waste residue due to the reaction of iron after the acid treatment, so that the industrial waste residue has good grindability, and the energy consumption of grinding during production can be reduced. For sludge with higher water content, more water can be fixed by utilizing the loose and porous property of the waste residue, the consistency of the sludge is increased, and the construction is ensured. The sulfate remained after the acid treatment of the waste residue can also excite the active alumina and the active silica of the lithium residue powder and the waste residue powder.
In the preferable method of the invention, in the step (2), 500-520 parts of P.O 42.5 cement, 215-230 parts of waste residue powder obtained in the step (1), 150-175 parts of lithium residue powder, 100-110 parts of sodium sulfate and 10-12 parts of polycarboxylic acid water reducing agent are mixed and homogenized according to parts by weight to obtain the curing agent for the sludge with high water content.
In a further preferable method of the invention, in the step (2), 500 parts by weight of P & O42.5 cement, 225 parts by weight of the waste residue powder obtained in the step (1), 160 parts by weight of lithium residue powder, 105 parts by weight of sodium sulfate and 10 parts by weight of polycarboxylic acid water reducing agent are mixed and homogenized to obtain the curing agent for sludge with high water content.
In the preferable method of the invention, siO is contained in the lithium slag powder in the step (2) 2 50-55% of Al 2 O 3 Is 18-24% of CaSO 4 The mass percentage of (B) is 10-14%.
In the preferred method of the invention, the specific surface area of the waste residue powder in the step (1) is 600-700m 2 /kg。
In the preferable method of the invention, the specific surface area of the lithium slag powder in the step (2) is 600-700m 2 /kg。
In the preferable method of the invention, the water reducing rate of the polycarboxylic acid water reducing agent in the step (2) is 12-15%.
The invention also provides a curing agent for the sludge with high water content, which comprises the following components in parts by weight: 500-550 parts of P.O 42.5 cement, 200-250 parts of acid-treated industrial waste slag powder, 150-250 parts of lithium slag powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducing agent; the acid-treated industrial waste residue powder is particles with a porous structure, and the specific surface area is 600-700m 2 Per kg, and comprises the following components in percentage by weight: 46-52% SiO 2 8-12% of FeSO 4 20-28% of Al 2 O 3 16-22% of CaSO 4 。
The acid treated industrial waste residue powder is prepared by putting composite non-ferrous smelting solid waste such as copper pole mud, zinc slag and the like into an oxygen-enriched smelting tank to extract rare metals, firstly reacting in a waste acidic solution containing sulfuric acid, then washing and precipitating, and finally grinding to 600-700m 2 Kg of the obtained acid-treated industrial waste residue powder.
The preferred curing agent of the invention comprises the following components in parts by weight: 500-520 parts of P & O42.5 cement, 215-230 parts of waste residue powder obtained in the step (1), 150-175 parts of lithium residue powder, 100-110 parts of sodium sulfate and 10-12 parts of polycarboxylic acid water reducing agent.
The curing agent is more preferably prepared from the following components in parts by weight: 500 parts of P & O42.5 cement, 225 parts of waste residue powder obtained in the step (1), 160 parts of lithium residue powder, 105 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent.
In the preferred curing agent of the invention, the specific surface area of the lithium slag powder is 600-700m 2 /kg。
In the preferred curing agent of the invention, siO is contained in the lithium slag powder 2 50-55% of Al 2 O 3 Is 18-24% of CaSO 4 The mass percentage of (A) is 10-14%.
In the preferred curing agent of the invention, the water reducing rate of the polycarboxylate water reducing agent is 12-15%.
The invention also provides application of the curing agent in sludge curing treatment, wherein 5-50 parts of the curing agent is added into 100 parts of sludge in the sludge curing treatment according to parts by weight. The sludge preferably has a water content of not less than 50%.
The beneficial effects of the invention are mainly embodied in the following points:
(1) The industrial waste residue, the sulfuric acid-containing waste acidic solution and the lithium slag powder used in the invention are industrial wastes, and compared with the traditional cement and lime curing agent, the cost can be greatly reduced.
(2) The industrial waste residue treated by the acid can retain sulfuric acid in a sulfuric acid-containing waste acid solution in a sulfate form, and can excite the pozzolanic activity of silica and alumina in industrial waste residue powder and lithium residue powder.
(3) The method utilizes the characteristics of porous structure and large specific surface area of the industrial waste residue and the lithium residue powder, can treat the sludge with higher water content, and still has better solidification effect on the sludge with 70 percent of water content through test verification.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention uses the industrial waste residue after acid treatment to replace part of cement and lime in the curing agent, and adds a proper amount of cement, lithium slag powder, sodium sulfate and polycarboxylic acid water reducing agent to be homogenized together in a V-shaped mixer to obtain the finished curing agent. The cement, the acid-treated industrial waste residue powder, the lithium residue powder, the sodium sulfate and the polycarboxylic acid water reducer are prepared according to the proportion of 500-550 parts of P & O42.5 cement, 200-250 parts of the acid-treated industrial waste residue powder, 150-250 parts of the lithium residue powder, 100-120 parts of the sodium sulfate and 10-15 parts of the polycarboxylic acid water reducer respectively.
The preparation method of the curing agent comprises the following steps:
(1) Adding composite non-ferrous smelting solid waste such as copper pole mud, zinc slag and the like into an oxygen-enriched smelting tank, extracting rare and dispersed metals, reacting in a waste acid tank containing sulfuric acid, washing and precipitating, and then putting into a ball mill for grinding for 20-30min to obtain the alloy with the specific surface area of 600-700m 2 The acid-treated industrial waste residue powder comprises the following components in percentage by weight: 46-52% SiO 2 8-12% of FeSO 4 20-28% of Al 2 O 3 16-22% of CaSO 4 ；
(2) According to the parts by weight, 500-550 parts of P.O 42.5 cement, 200-250 parts of acid-treated industrial waste residue powder obtained in the step (1), 150-250 parts of lithium residue powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducing agent are mixed and homogenized in a V-shaped mixer; in the lithium slag powder, siO 2 50-55% of Al 2 O 3 Is 18-24% of CaSO 4 The mass percentage of the component (A) is 10-14%; and mixing and homogenizing for 1h to obtain the sludge curing agent.
The following examples are specifically proposed according to the above preparation method:
example 1
Weighing 500 parts of P & O42.5 cement, 225 parts of acid-treated industrial waste residue powder, 160 parts of lithium residue powder, 105 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent by mass, mixing, and feeding into a V-shaped mixer for homogenization to obtain a curing agent finished product for later use.
Uniformly stirring a curing agent and sludge with the water content of 70% according to the mass ratio of 1. The test results are shown in table 1:
table 1 example 1 compressive strength of soil solidified soil
Comparative example 1
Uniformly stirring P & O42.5 cement and sludge with the water content of 70% according to a mass ratio of 1. The test results are shown in table 2:
TABLE 2 COMPARATIVE EXAMPLE 1 compressive Strength of soil-stabilized soil
Example 2
535 parts of P & O42.5 cement, 210 parts of acid-treated industrial waste slag powder, 160 parts of lithium slag powder, 95 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent are weighed according to the mass, mixed and then sent into a V-shaped mixer for homogenization to prepare a curing agent finished product for later use.
Uniformly stirring a curing agent and sludge with water content of 70% according to a mass ratio of 1. The test results are shown in table 3:
table 3 example 2 compressive strength of soil solidified soil
Comparative example 2
535 parts of P & O42.5 cement, 210 parts of industrial waste slag powder which is not subjected to acid treatment, 160 parts of lithium slag powder, 95 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent are weighed according to the mass, mixed and then sent into a V-shaped mixer for homogenization to prepare a curing agent finished product for later use.
Uniformly stirring a curing agent and sludge with the water content of 70% according to the mass ratio of 1. The test results are shown in table 4:
TABLE 4 compression Strength of soil solidified in comparative example 2
Claims (10)
1. A curing agent for high-water-content sludge is composed of the following components in parts by weight: 500-550 parts of P.O 42.5 cement, 200-250 parts of acid-treated industrial waste slag powder, 150-250 parts of lithium slag powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducing agent; the acid-treated industrial waste residue powder is particles with a porous structure, and the specific surface area is 600-700m 2 Per kg, and comprises the following components in percentage by weight: 46-52% SiO 2 8-12% of FeSO 4 20-28% of Al 2 O 3 16-22% of CaSO 4 。
2. The curing agent of claim 1, wherein: the acid treated industrial waste residue powder is prepared by putting composite non-ferrous smelting solid waste such as copper pole mud, zinc slag and the like into an oxygen-enriched smelting tank to extract rare metals, firstly reacting in a waste acidic solution containing sulfuric acid, then washing and precipitating, and finally grinding to 600-700m 2 Kg of the obtained acid-treated industrial waste residue powder.
3. The curing agent of claim 1, wherein: the composition consists of the following components in parts by weight: 500-520 parts of P & O42.5 cement, 215-230 parts of waste residue powder obtained in the step (1), 150-175 parts of lithium residue powder, 100-110 parts of sodium sulfate and 10-12 parts of polycarboxylic acid water reducing agent; the curing agent is more preferably composed of the following components in parts by weight: 500 parts of P & O42.5 cement, 225 parts of waste residue powder obtained in the step (1), 160 parts of lithium residue powder, 105 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent.
4. The curing agent of claim 1, wherein: the specific surface area of the lithium slag powder is 600-700m 2 (iv) kg; in the lithium slag powder, siO 2 50-55% of Al 2 O 3 Is 18-24% of CaSO 4 The mass percentage of (B) is 10-14%.
5. A method for preparing a sludge curing agent with high water content by utilizing industrial waste residues after acid treatment comprises the following steps:
(1) Grinding the acid-treated industrial waste residue in a ball mill for 20-30min to obtain the product with a surface area of 600-700m 2 /kg of waste residue powder;
(2) Mixing and homogenizing 500-550 parts of P & O42.5 cement, 200-250 parts of waste residue powder obtained in the step (1), 150-250 parts of lithium residue powder, 100-120 parts of sodium sulfate and 10-15 parts of polycarboxylic acid water reducing agent in parts by weight; and obtaining the curing agent for the sludge with high water content.
6. The method of claim 5, wherein: (1) The industrial waste residue after acid treatment refers to the industrial waste residue after acid treatment, which is obtained by putting composite non-ferrous smelting solid waste such as copper pole mud, zinc slag and the like into an oxygen-enriched smelting tank to extract rare metals, firstly reacting in a waste acidic solution containing sulfuric acid, and then washing and precipitating.
7. The method of claim 5, wherein: (1) In the industrial waste residue after acid treatment, siO is contained 2 46-52% of FeSO 4 8-12% of Al 2 O 3 20-28% of CaSO 4 The mass percentage of (A) is 16-22%.
8. The method of claim 5, wherein: mixing and homogenizing 500-520 parts of P & O42.5 cement, 215-230 parts of waste residue powder obtained in the step (1), 150-175 parts of lithium residue powder, 100-110 parts of sodium sulfate and 10-12 parts of polycarboxylic acid water reducing agent by weight to obtain the curing agent for the sludge with high water content; preferably, 500 parts of P & O42.5 cement, 225 parts of the waste residue powder obtained in the step (1), 160 parts of lithium residue powder, 105 parts of sodium sulfate and 10 parts of polycarboxylic acid water reducing agent are mixed and homogenized to obtain the curing agent for the sludge with high water content.
9. The method of claim 5, wherein: the specific surface area of the lithium slag powder in the step (2) is 600-700m 2 Per kg; in the lithium slag powder, siO 2 50-55% of Al 2 O 3 Is 18-24% of CaSO 4 The mass percentage of (B) is 10-14%.
10. Use of the curing agent according to any one of claims 1 to 4 in a sludge curing process in which 5 to 50 parts by weight of the curing agent is incorporated per 100 parts of sludge.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116874252A (en) * | 2023-07-05 | 2023-10-13 | 江西省建材科研设计院有限公司 | Cement, mineral powder, lithium slag-based curing agent and application thereof in soil |
| CN117776638A (en) * | 2024-02-23 | 2024-03-29 | 大连文昇环保科技有限公司 | Silt curing agent with high mixing amount of solid waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503073A (en) * | 2018-12-05 | 2019-03-22 | 江苏坤泽科技股份有限公司 | A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof |
| CN109502937A (en) * | 2018-12-07 | 2019-03-22 | 西南科技大学 | A kind of method of curing sludge and utilize the sludge curing agent for mentioning titanium slag |
| CN114149202A (en) * | 2021-10-26 | 2022-03-08 | 河海大学 | Dredged sludge curing agent with high water content and preparation method and application thereof |
-
2022
- 2022-12-02 CN CN202211535191.2A patent/CN115745503B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503073A (en) * | 2018-12-05 | 2019-03-22 | 江苏坤泽科技股份有限公司 | A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof |
| CN109502937A (en) * | 2018-12-07 | 2019-03-22 | 西南科技大学 | A kind of method of curing sludge and utilize the sludge curing agent for mentioning titanium slag |
| CN114149202A (en) * | 2021-10-26 | 2022-03-08 | 河海大学 | Dredged sludge curing agent with high water content and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116874252A (en) * | 2023-07-05 | 2023-10-13 | 江西省建材科研设计院有限公司 | Cement, mineral powder, lithium slag-based curing agent and application thereof in soil |
| CN117776638A (en) * | 2024-02-23 | 2024-03-29 | 大连文昇环保科技有限公司 | Silt curing agent with high mixing amount of solid waste |
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| CN115745503B (en) | 2023-11-14 |
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