CN110902984A - Curing agent for sludge treatment and application thereof - Google Patents
Curing agent for sludge treatment and application thereof Download PDFInfo
- Publication number
- CN110902984A CN110902984A CN201911234561.7A CN201911234561A CN110902984A CN 110902984 A CN110902984 A CN 110902984A CN 201911234561 A CN201911234561 A CN 201911234561A CN 110902984 A CN110902984 A CN 110902984A
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- sludge treatment
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- 239000010802 sludge Substances 0.000 title claims abstract description 51
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 32
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 23
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000292 calcium oxide Substances 0.000 claims abstract description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 16
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 13
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 16
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 claims description 16
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 8
- 239000005751 Copper oxide Substances 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910000431 copper oxide Inorganic materials 0.000 claims description 8
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 8
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 8
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 hydroxide ions Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- ZHZFKLKREFECML-UHFFFAOYSA-L calcium;sulfate;hydrate Chemical compound O.[Ca+2].[O-]S([O-])(=O)=O ZHZFKLKREFECML-UHFFFAOYSA-L 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 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
-
- 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
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
-
- 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
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a curing agent for sludge treatment, and relates to the field of chemical products; the curing agent comprises the following raw materials in percentage by weight: 18 to 24 percent of silicon dioxide, 5.3 to 7.3 percent of aluminum oxide, 56.3 to 64.3 percent of calcium oxide, 5.6 to 7.6 percent of sulfur trioxide and 4.8 to 6.8 percent of trace component. The main raw material of the curing agent adopts an electrodeless, environment-friendly and low-carbon new material which is deeply processed by a nanotechnology, has the characteristic of environmental protection, can effectively act on sludge treatment, and has higher use value and economic value.
Description
Technical Field
The invention relates to the field of chemical products, in particular to a curing agent for sludge stabilization and harmless treatment and application thereof.
Background
Along with the trend of increasing the discharge amount of wastewater year by year, the increase of sludge after treatment, such as municipal sludge, river sludge, building sludge and the like, follows. Because the initial water content of the sludge is high, even after conventional dehydration, the water content of the sludge is usually over 80 percent, and the sludge is particularly suitable for the growth of pathogenic bacteria, wherein the pathogenic bacteria mainly comprise bacteria, viruses and ova, and contain heavy metal ions and the like. When exposed to these pathogens, humans may suffer from various diseases.
At present, no suitable chemical reagent can well treat the sludge comprehensively, so that an economical, environment-friendly and efficient novel curing agent needs to be found.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a curing agent for sludge treatment.
In order to achieve the purpose, the invention provides the following technical scheme:
a curing agent for sludge treatment comprises the following raw materials in percentage by weight: 18 to 24 percent of silicon dioxide, 5.3 to 7.3 percent of aluminum oxide, 56.3 to 64.3 percent of calcium oxide, 5.6 to 7.6 percent of sulfur trioxide, and the balance of trace components.
In a further aspect: the composite material comprises the following raw materials in percentage by weight: 19 to 23 percent of silicon dioxide, 5.8 to 6.8 percent of aluminum oxide, 58.3 to 62.3 percent of calcium oxide, 6.1 to 7.1 percent of sulfur trioxide, and the balance of trace components.
In a further aspect: the composite material comprises the following raw materials in percentage by weight: 21% of silicon dioxide, 6.3% of aluminum oxide, 60.3% of calcium oxide, 6.6% of sulfur trioxide and the balance of trace components.
In a further aspect: the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Specifically, the curing agent of the present invention has the following mechanism of action:
hydration: the various compounds react with water in the sludge and are combined with water molecules in the sludge to change free water into crystal water to generate new crystal hydrates, and the hydrates are combined with soil particles to form a stable structure.
Inhibiting heavy metal precipitation: when hydration reaction occurs, hydroxide ions are generated to make the environment strongly alkaline, and further, the hydroxide ions react with metal ions in water to generate hydroxide precipitates with low solubility, and metal atoms are spatially bound in a newly formed structure and are not easily precipitated. The aim of solidifying the heavy metal is achieved, and the leaching toxicity of the heavy metal is reduced.
Removal/reduction of harmful substances: under the strong alkaline environment (PH is more than or equal to 12), hydrogen bonds in the protein in the bacteria are broken, and the hydrogen bonds can be combined with free amino groups or carboxyl groups to form salts, so that the protein is modified, and most bacteria can be killed quickly. Indexes of harmful pollutants such as BOD, COD and the like are greatly reduced due to the alkaline environment.
And (3) enhancing the soil strength: calcium oxide and sulfur trioxide in the curing agent in the sludge generate calcium sulfate hydrate, calcium oxide and aluminum oxide generate tricalcium aluminate, the calcium oxide and the aluminum oxide interact with each other to generate ettringite, the tricalcium aluminate is prevented from hydrating, and the air-hardening cementing material is an air-hardening cementing material and can obviously improve the strength of the cured soil.
And (3) malodor reduction: the odor in the sludge mainly comes from organic matters in the sludge, and hydrogen sulfide and mercaptan compound gas are generated through bacterial decomposition; the strong basicity generated in the curing process can make the hydrogen sulfide and the calcium hydroxide react to generate calcium sulfide, thereby achieving the effect of reducing the malodor.
Removing phosphorus components: the sludge contains phosphate radical and dihydrogen phosphate radical, and reacts with calcium ion in the curing agent to form a difficult-to-dissolve compound, so that the aim of removing phosphorus component is fulfilled.
Compared with the prior art, the invention has the following beneficial effects:
the main raw materials of the curing agent are natural mineral substances, so that the curing agent has the characteristics of environmental protection, and the components are easy to obtain and easy to prepare, are prepared by stirring the components according to a certain weight percentage, and are convenient to use; the performance of soil/sludge particle clusters can be improved, the soil water-shielding property is improved, the soil compactness is enhanced, the sludge strength is enhanced, the frost resistance is good, and the soil expansion coefficient is reduced; can effectively eliminate or reduce various pollutants in the sludge, particularly harmful microorganisms, organic phosphorus and the like, and strongly solidify harmful heavy metal components in the sludge to prevent secondary environmental pollution caused by seepage; the solidified sludge is suitable for vegetation growth and has good ecological planting function.
Detailed Description
The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 24% of silicon dioxide, 7.3% of aluminum oxide, 56.3% of calcium oxide, 7.6% of sulfur trioxide and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 2
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 19% of silicon dioxide, 5.8% of aluminum oxide, 62.3% of calcium oxide, 6.1% of sulfur trioxide and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 3
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 21% of silicon dioxide, 6.3% of aluminum oxide, 60.3% of calcium oxide, 6.6% of sulfur trioxide and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 4
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 23% of silicon dioxide, 6.8% of aluminum oxide, 58.3% of calcium oxide, 7.1% of sulfur trioxide and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 5
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 18 percent of silicon dioxide, 5.3 percent of aluminum oxide, 64.3 percent of calcium oxide, 5.6 percent of sulfur trioxide, and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 6
In the embodiment of the invention, the curing agent for sludge treatment comprises the following raw materials in percentage by weight: 21.3% of silicon dioxide, 6.1% of aluminum oxide, 62.3% of calcium oxide, 6.8% of sulfur trioxide and the balance of trace components.
Wherein the trace components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
Example 7
In the embodiment of the invention, the curing agent described in any one of embodiments 1 to 6 is described in application by combining different application scenes.
River and lake sludge ecological resource treatment, namely in the river dredging process, river sludge is solidified to be used as a base material for slope protection, vegetation with water and soil conservation is planted to enhance the slope protection effect and realize the landscape ecological effect.
The wetland sludge solidification builds ecological landscape-when the wetland landscape is reformed, the sludge solidification technology is utilized to improve the soil of the original sludge accumulation area, so that specific vegetation can grow in the area, the landscape improvement is facilitated, the ecological bearing capacity of the wetland is greatly improved, and meanwhile, the water and soil loss condition in the flood season is improved and the water quality is purified.
Harbor construction-a large amount of soft muddy soil is excavated in the harbor construction process, and the soil is not suitable for being used as a matrix paving material, and can only be used as waste to be transported and treated, so the cost is high. If the curing agent is adopted for treatment, the curing agent is improved into the compliant soil which can be used for construction to be utilized on site, so that a large amount of capital is saved, the environmental damage is reduced, and the reduction and the resource of wastes are realized.
Soil ecological restoration-in the restoration and ecological reconstruction work of land suffering from serious disturbance (such as mining field land, forest felling field, refuse landfill, land surface serious destruction and the like which needs to be reclaimed), the curing agent is adopted for treatment, so that the sludge can be used as covering and backfilling soil, the skill meets the requirements of vegetation growth and ecological bearing capacity restoration, and the resource strategy can be realized.
In road construction, when road construction is carried out, soil for paving a roadbed is often required to be transported for a long distance, or the stability of the roadbed is enhanced by adopting high-cost modes such as burying a large number of cement pile foundations and the like. If the curing agent is adopted to improve the strength of the on-site sludge, the construction difficulty is reduced, and a large amount of cost is saved.
Municipal stock sludge: a large amount of municipal sludge is stored for a long time due to no corresponding treatment and disposal way, the surrounding environment is seriously influenced, the underground water is threatened, the sludge is solidified and treated in a harmless way by adopting a curing agent and then is used for backfilling and covering planting, and the problem of the sludge direction in storage is solved at low cost.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (6)
1. The curing agent for sludge treatment is characterized by comprising the following raw materials in percentage by weight: 18 to 24 percent of silicon dioxide, 5.3 to 7.3 percent of aluminum oxide, 56.3 to 64.3 percent of calcium oxide, 5.6 to 7.6 percent of sulfur trioxide, and the balance of trace components.
2. The curing agent for sludge treatment according to claim 1, characterized by comprising the following raw materials in percentage by weight: 19 to 23 percent of silicon dioxide, 5.8 to 6.8 percent of aluminum oxide, 58.3 to 62.3 percent of calcium oxide, 6.1 to 7.1 percent of sulfur trioxide, and the balance of trace components.
3. The curing agent for sludge treatment according to claim 2, characterized by comprising the following raw materials in percentage by weight: 21% of silicon dioxide, 6.3% of aluminum oxide, 60.3% of calcium oxide, 6.6% of sulfur trioxide and the balance of trace components.
4. The curing agent for sludge treatment according to claim 1, wherein the minor components comprise the following raw materials in parts by weight: less than 1 percent of potassium oxide, less than 1 percent of sodium oxide, less than 1 percent of titanium oxide, less than 1 percent of manganese oxide, less than 1 percent of strontium oxide and less than 1 percent of copper oxide.
5. Use of the solidifying agent for sludge treatment according to any one of claims 1 to 4 in sludge treatment.
6. Use of the curing agent for sludge treatment according to any one of claims 1 to 4 for the preparation of a compound or composition for sludge treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234561.7A CN110902984A (en) | 2019-12-05 | 2019-12-05 | Curing agent for sludge treatment and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234561.7A CN110902984A (en) | 2019-12-05 | 2019-12-05 | Curing agent for sludge treatment and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110902984A true CN110902984A (en) | 2020-03-24 |
Family
ID=69822539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911234561.7A Pending CN110902984A (en) | 2019-12-05 | 2019-12-05 | Curing agent for sludge treatment and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110902984A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582475A (en) * | 2020-04-30 | 2021-11-02 | 天津富兰克能源科技有限公司 | Sludge curing agent for municipal sewage treatment plant and curing treatment process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1534727A (en) * | 1976-03-26 | 1978-12-06 | Ni I Promy Str | Building materials |
| JPH10495A (en) * | 1996-06-14 | 1998-01-06 | Nippon Kosan Kk | Method for recycling construction sludge |
| JP2000210700A (en) * | 1999-01-27 | 2000-08-02 | Nippon Kosan Kk | Method of reutilization of construction sludge |
| KR20020003423A (en) * | 2000-06-28 | 2002-01-12 | 소재한 | A method for treating heavy metals-containing wastes to preserve the ecosystem of seawater |
| CN102603153A (en) * | 2012-03-14 | 2012-07-25 | 河海大学 | Curing agent for solidification/stabilization of dewatered sludge of sewage plant and application of curing agent |
| CN109354355A (en) * | 2018-11-29 | 2019-02-19 | 广州珞珈环境技术有限公司 | A kind of adjusting material and its preparation method and application for sludge solidification |
-
2019
- 2019-12-05 CN CN201911234561.7A patent/CN110902984A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1534727A (en) * | 1976-03-26 | 1978-12-06 | Ni I Promy Str | Building materials |
| JPH10495A (en) * | 1996-06-14 | 1998-01-06 | Nippon Kosan Kk | Method for recycling construction sludge |
| JP2000210700A (en) * | 1999-01-27 | 2000-08-02 | Nippon Kosan Kk | Method of reutilization of construction sludge |
| KR20020003423A (en) * | 2000-06-28 | 2002-01-12 | 소재한 | A method for treating heavy metals-containing wastes to preserve the ecosystem of seawater |
| CN102603153A (en) * | 2012-03-14 | 2012-07-25 | 河海大学 | Curing agent for solidification/stabilization of dewatered sludge of sewage plant and application of curing agent |
| CN109354355A (en) * | 2018-11-29 | 2019-02-19 | 广州珞珈环境技术有限公司 | A kind of adjusting material and its preparation method and application for sludge solidification |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582475A (en) * | 2020-04-30 | 2021-11-02 | 天津富兰克能源科技有限公司 | Sludge curing agent for municipal sewage treatment plant and curing treatment process thereof |
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