CN111617752A - Method for regenerating waste activated carbon for water treatment - Google Patents
Method for regenerating waste activated carbon for water treatment Download PDFInfo
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- CN111617752A CN111617752A CN202010515058.5A CN202010515058A CN111617752A CN 111617752 A CN111617752 A CN 111617752A CN 202010515058 A CN202010515058 A CN 202010515058A CN 111617752 A CN111617752 A CN 111617752A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 18
- 238000011069 regeneration method Methods 0.000 claims abstract description 42
- 230000008929 regeneration Effects 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 25
- 238000003763 carbonization Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
- 230000003213 activating effect Effects 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 37
- 238000001994 activation Methods 0.000 claims description 29
- 230000004913 activation Effects 0.000 claims description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 8
- 235000005074 zinc chloride Nutrition 0.000 claims description 8
- 239000011592 zinc chloride Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005470 impregnation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a method for regenerating waste activated carbon for water treatment, which adopts a microwave heating technology to carry out the regeneration carbonization process of the waste activated carbon, utilizes the characteristic of microwave heat transfer, ensures the uniform heating of materials, reduces the loss of the materials in the regeneration process and improves the regeneration rate; the activated process of regeneration active carbon is carried out in a pressurization impregnation mode, the materials are uniformly impregnated in the activating solution, the activating effect is greatly improved by adjusting the proportion of the regenerating solution and the partial pressure of carbon dioxide, the qualification rate of final products is guaranteed, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of activated carbon regeneration, in particular to a method for regenerating waste activated carbon for water treatment.
Background
Activated carbon is an effective adsorbent, and is commonly used as an adsorbent for water treatment to remove various pollutants in water due to the advantages of developed internal pore structure, large specific surface, strong adsorption capacity and the like. After the activated carbon is applied for a period of time, the adsorption of the activated carbon is saturated, so that the activated carbon loses the adsorption effect and becomes solid hazardous waste, and corresponding treatment is needed. If the waste activated carbon is used as hazardous waste to be cured, buried and the like, a great deal of resources are wasted, and secondary pollution is caused to the environment, so that the regeneration of the activated carbon has important significance from the aspects of economy and environmental protection.
The treatment and resource utilization of the waste active carbon are carried out, the recycling value of the waste active carbon is improved, the problem of environmental pollution caused by the waste active carbon can be fundamentally solved, higher social and economic benefits can be brought, the continuously improved environmental protection requirements are met, and the development strategy of resource saving is also conformed.
The process of regenerating the waste activated carbon is to reasonably remove pollutants adsorbed by the activated carbon by adopting a series of means such as physics, chemistry and the like under the condition of not destroying the original structure of the activated carbon, recover the adsorption capacity of the activated carbon and further achieve the process of reusing the activated carbon. The current ways of activated carbon regeneration are: continuous heating regeneration, oxidation regeneration, solvent extraction regeneration, microbial degradation regeneration, and the like.
The invention discloses a method for regenerating granular activated carbon, which completes the regeneration process of the granular activated carbon through the steps of cleaning, pickling, drying, pretreatment, carbonization, waste gas collection, activation, cooling and the like, adopts a wet-process and pyrogenic process combined process, and compared with a single activated carbon regeneration treatment technology, the method improves the regeneration efficiency of the activated carbon to a certain extent, but the process flow is too long, the used equipment is too complex, the process parameters needing to be controlled are more, and the method is not beneficial to realizing industrialization.
The patent with the application number of CN108178353A discloses a granular activated carbon adsorption and regeneration integrated treatment method, the regeneration process of granular activated carbon is completed by means of drying, regeneration, activation and the like, and as an activation furnace with a novel structure is adopted, the heat energy in the carbonization and activation processes is effectively utilized, and the energy consumption is reduced. However, the pyrogenic process is adopted for the regeneration treatment of the activated carbon, so that the final product has poor uniformity, high loss rate, low regeneration rate, poor economic benefit and low industrial feasibility.
At present, the process for regenerating the waste activated carbon mainly comprises the methods of heating regeneration, oxidation regeneration, solvent extraction regeneration, microbial degradation regeneration and the like, a certain process is singly adopted to carry out the activated carbon regeneration process, and the method often cannot achieve a relatively ideal effect, and the problems of poor equipment adaptability, high activated carbon loss rate in the regeneration process, incomplete regeneration and activation, low adsorption rate of finished activated carbon, low service life and the like mainly exist.
Disclosure of Invention
In order to overcome the defects, the invention provides a method for regenerating waste activated carbon for water treatment, which can reasonably improve the problems.
The technical scheme adopted by the invention for solving the technical problem is as follows: a method for regenerating waste activated carbon for water treatment comprises the following steps:
1) cleaning: stirring and washing the waste activated carbon by using clean water, ensuring that other impurities are basically not visible in the washed waste activated carbon, settling and filtering the washed material, and naturally drying the material until the water content is between 40 and 50 percent;
2) and (3) drying: the dried wet waste active carbon is put into a blast drying oven, the temperature interval is set to be 60-80 ℃, the drying treatment is carried out on the wet waste active carbon, the lower temperature is adopted, the waste active carbon can be ensured not to generate the caking phenomenon in the drying process,
3) microwave carbonization: conveying the dried waste activated carbon into an industrial microwave oven by using a transmission belt, adjusting the microwave heating frequency to be between 50MHz and 200MHz, and adjusting the material heating time to be between 60min and 300min at the same time, and performing regeneration carbonization treatment on the waste activated carbon;
4) and (3) activation: putting the activated carbon subjected to regeneration and carbonization into a high-pressure reaction kettle, simultaneously adding an activating solution consisting of clear water, dilute sulfuric acid, dilute hydrochloric acid and zinc chloride into the reaction kettle, sealing the reaction kettle after the charging is finished, and adding carbon dioxide gas into the kettle through a pipeline to start an activation process of the regenerated activated carbon;
5) and (3) drying: filtering activated carbon, washing with clear water for 2-3 times to neutrality, drying at 80-100 deg.C, and packaging.
As a further improvement of the invention, in the step 2), the attached water in the waste carbon is dried to be less than 10%.
As a further improvement of the invention, the waste gas generated in the carbonization process in the step 3) is discharged from a smoke pipeline in the furnace through a draught fan, and the smoke is subjected to adsorption purification or secondary combustion and then is discharged after reaching the standard.
As a further improvement of the invention, in the step 4), the activation temperature is controlled to be 180-270 ℃, the activation time is 5-10h, the total pressure in the kettle is 0.8-2MPa, the partial pressure of carbon dioxide is 0.4-1.2MPa, the liquid-solid (volume-mass) ratio of the activation liquid to the activated carbon to be activated in the kettle is 3-6:1, the concentration of sulfuric acid in the activation liquid is 0.01-0.05mol/l, the concentration of hydrochloric acid is 0.01-0.05mol/l, and the concentration of zinc chloride is 0.1-0.5 g/l.
The invention has the beneficial effects that: compared with the prior art, the method for regenerating the waste activated carbon has the following advantages:
1. the regeneration carbonization process of the waste activated carbon is carried out by adopting a microwave heating technology, and the characteristic of microwave heat transfer is utilized, so that the materials are uniformly heated, the loss of the materials in the regeneration process is reduced, and the regeneration rate is improved;
2. the activated process of regeneration active carbon is carried out in a pressurization impregnation mode, the materials are uniformly impregnated in the activating solution, the activating effect is greatly improved by adjusting the proportion of the regenerating solution and the partial pressure of carbon dioxide, the qualification rate of final products is guaranteed, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
FIG. 1 shows a process flow of a method for regenerating spent activated carbon for water treatment according to the present invention, but the present invention is not limited thereto. The experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available without specific reference, and the following examples are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
A method for regenerating waste activated carbon for water treatment comprises the following steps:
1) cleaning: stirring and washing the waste activated carbon by using clean water, ensuring that other impurities are basically not visible in the washed waste activated carbon, settling and filtering the washed material, and naturally drying the material until the water content is between 40 and 50 percent;
2) and (3) drying: the dried wet waste active carbon is put into a blast drying oven, the temperature interval is set to be 60-80 ℃, the drying treatment is carried out on the wet waste active carbon, the lower temperature is adopted, the waste active carbon can be ensured not to generate the caking phenomenon in the drying process,
3) microwave carbonization: conveying the dried waste activated carbon into an industrial microwave oven by using a transmission belt, adjusting the microwave heating frequency to be between 50MHz and 200MHz, and adjusting the material heating time to be between 60min and 300min at the same time, and performing regeneration carbonization treatment on the waste activated carbon;
4) and (3) activation: putting the activated carbon subjected to regeneration and carbonization into a high-pressure reaction kettle, simultaneously adding an activating solution consisting of clear water, dilute sulfuric acid, dilute hydrochloric acid and zinc chloride into the reaction kettle, sealing the reaction kettle after the charging is finished, and adding carbon dioxide gas into the kettle through a pipeline to start an activation process of the regenerated activated carbon;
5) and (3) drying: filtering activated carbon, washing with clear water for 2-3 times to neutrality, drying at 80-100 deg.C, and packaging.
And in the step 2), drying the attached water in the waste carbon to be less than 10%.
And 3) discharging the waste gas generated in the carbonization process from a smoke pipeline in the furnace through a draught fan, and discharging the smoke after adsorption purification or secondary combustion to reach the standard.
In the step 4), the activation temperature is controlled to be 180-.
Example 1
An activated carbon regeneration method comprises the following steps:
1. cleaning: stirring and washing the waste activated carbon for the water treatment of the A factory with clear water, ensuring that the cleaned waste activated carbon basically has no other visible impurities, settling and filtering the cleaned material, and naturally drying the material until the water content is 42%;
2. and (3) drying: putting the dried wet waste activated carbon into a blast drying oven, setting the temperature interval to be 75 ℃, drying the wet waste activated carbon, and adopting lower temperature to ensure that the waste activated carbon cannot be hardened in the drying process, wherein the water content in the final waste activated carbon is 6.3%;
3. microwave carbonization: and putting the dried waste activated carbon into an industrial microwave oven by using a transmission belt, adjusting the microwave heating frequency to 110MHz, and adjusting the material heating time to 150min at the same time, so as to carry out regeneration carbonization treatment on the waste activated carbon. Simultaneously, an external induced draft fan is started to discharge waste gas generated in the carbonization process through a smoke pipeline in the furnace, and the waste gas is adsorbed by a smoke purification device and then is discharged after reaching the standard;
4. and (3) activation: putting the activated carbon subjected to regeneration and carbonization into a high-pressure reaction kettle, simultaneously adding an activating solution consisting of clear water, dilute sulfuric acid, dilute hydrochloric acid and zinc chloride into the reaction kettle, sealing the reaction kettle after the charging is finished, and adding carbon dioxide gas through a pipeline to start the activation process of the activated carbon. In the stage, the activation temperature is controlled to be 230 ℃, the activation time is 6 hours, the total pressure in the kettle is 1.6MPa, the partial pressure of carbon dioxide is 0.9MPa, the liquid-solid (volume-mass) ratio of the activation liquid to the activated carbon to be activated in the kettle is adjusted to be 5:1, the concentration of sulfuric acid in the activation liquid is 0.02mol/l, the concentration of hydrochloric acid is 0.01mol/l, and the concentration of zinc chloride is 0.25 g/l.
5. And (3) drying: filtering out activated carbon, washing with clear water for 3 times to neutrality, drying at 85 deg.C, and packaging.
Finally, the qualified rate of the obtained finished product of the activated carbon is 99.8 percent through related detection.
Example 2
An activated carbon regeneration method comprises the following steps:
1. cleaning: b, stirring and washing the waste activated carbon for the factory water treatment by using clean water, ensuring that the cleaned waste activated carbon basically has no other visible impurities, settling and filtering the cleaned material, and naturally drying the material until the water content is 45%;
2. and (3) drying: putting the dried wet waste activated carbon into a blast drying oven, setting the temperature interval to be 80 ℃, drying the wet waste activated carbon, and ensuring that the waste activated carbon is not hardened in the drying process by adopting lower temperature, wherein the water content in the final waste activated carbon is 4.6%;
3. microwave carbonization: and putting the dried waste activated carbon into an industrial microwave oven by using a transmission belt, adjusting the microwave heating frequency to 140MHz, adjusting the material heating time to 200min, and performing regeneration carbonization treatment on the waste activated carbon. Simultaneously, an external induced draft fan is started to discharge waste gas generated in the carbonization process through a smoke pipeline in the furnace, and the waste gas is adsorbed by a smoke purification device and then is discharged after reaching the standard;
4. and (3) activation: putting the activated carbon subjected to regeneration and carbonization into a high-pressure reaction kettle, simultaneously adding an activating solution consisting of clear water, dilute sulfuric acid, dilute hydrochloric acid and zinc chloride into the reaction kettle, sealing the reaction kettle after the charging is finished, and adding carbon dioxide gas through a pipeline to start the activation process of the activated carbon. In the stage, the activation temperature is controlled to be 200 ℃, the activation time is 10 hours, the total pressure in the kettle is adjusted to be 1.2MPa, the partial pressure of carbon dioxide is 0.5MPa, the liquid-solid (volume-mass) ratio of the activation liquid to the activated carbon to be activated in the kettle is adjusted to be 5:1, the concentration of sulfuric acid in the activation liquid is 0.01mol/l, the concentration of hydrochloric acid is 0.01mol/l, and the concentration of zinc chloride is 0.1 g/l.
5. And (3) drying: filtering out activated carbon, washing with clear water for 3 times to neutrality, drying at 85 deg.C, and packaging.
Finally, the qualified rate of the obtained finished product of the activated carbon is 99.95 percent through related detection.
Claims (4)
1. A method for regenerating waste activated carbon for water treatment is characterized by comprising the following steps:
1) cleaning: stirring and washing the waste activated carbon by using clean water, ensuring that other impurities are basically not visible in the washed waste activated carbon, settling and filtering the washed material, and naturally drying the material until the water content is between 40 and 50 percent;
2) and (3) drying: putting the dried wet waste activated carbon into a blast drying oven, and setting the temperature interval to be 60-80 ℃;
3) microwave carbonization: conveying the dried waste activated carbon into an industrial microwave oven by using a transmission belt, adjusting the microwave heating frequency to be between 50MHz and 200MHz, and adjusting the material heating time to be between 60min and 300min at the same time, and performing regeneration carbonization treatment on the waste activated carbon;
4) and (3) activation: putting the activated carbon subjected to regeneration and carbonization into a high-pressure reaction kettle, simultaneously adding an activating solution consisting of clear water, dilute sulfuric acid, dilute hydrochloric acid and zinc chloride into the reaction kettle, sealing the reaction kettle after the charging is finished, and adding carbon dioxide gas into the kettle through a pipeline to start an activation process of the regenerated activated carbon;
5) and (3) drying: filtering activated carbon, washing with clear water for 2-3 times to neutrality, drying at 80-100 deg.C, and packaging.
2. A method for regenerating spent activated carbon for water treatment as set forth in claim 1, wherein: and in the step 2), drying the attached water in the waste carbon to be less than 10%.
3. A method for regenerating spent activated carbon for water treatment as set forth in claim 1, wherein: and 3) discharging the waste gas generated in the carbonization process from a smoke pipeline in the furnace through a draught fan, and discharging the smoke after adsorption purification or secondary combustion to reach the standard.
4. A method for regenerating spent activated carbon for water treatment as set forth in claim 1, wherein: in the step 4), the activation temperature is controlled to be 180-.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042442A (en) * | 2021-12-02 | 2022-02-15 | 赤峰瑞阳化工有限公司 | Activated carbon regeneration and recycling method for trimethylolpropane production process |
| CN114477356A (en) * | 2022-01-12 | 2022-05-13 | 范俊聪 | Industrial sewage high efficiency processing device |
| CN116328747A (en) * | 2023-03-27 | 2023-06-27 | 无锡市友信赢特环境工程有限公司 | Active carbon thermal cycle regeneration system and process thereof |
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| CN103923734A (en) * | 2014-05-04 | 2014-07-16 | 天津理工大学 | Method for regenerating used oil by adopting antibiotic waste mushroom dreg biomass charcoal |
| CN106512974A (en) * | 2016-11-10 | 2017-03-22 | 中南大学 | Regeneration method of activated carbon |
| CN110354832A (en) * | 2019-07-10 | 2019-10-22 | 南京安捷特环保科技有限公司 | Regeneration method of active carbon |
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2020
- 2020-06-08 CN CN202010515058.5A patent/CN111617752A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923734A (en) * | 2014-05-04 | 2014-07-16 | 天津理工大学 | Method for regenerating used oil by adopting antibiotic waste mushroom dreg biomass charcoal |
| CN106512974A (en) * | 2016-11-10 | 2017-03-22 | 中南大学 | Regeneration method of activated carbon |
| CN110354832A (en) * | 2019-07-10 | 2019-10-22 | 南京安捷特环保科技有限公司 | Regeneration method of active carbon |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042442A (en) * | 2021-12-02 | 2022-02-15 | 赤峰瑞阳化工有限公司 | Activated carbon regeneration and recycling method for trimethylolpropane production process |
| CN114477356A (en) * | 2022-01-12 | 2022-05-13 | 范俊聪 | Industrial sewage high efficiency processing device |
| CN114477356B (en) * | 2022-01-12 | 2024-05-03 | 广州市鑫丰科创科技有限公司 | Industrial sewage high-efficiency treatment device |
| CN116328747A (en) * | 2023-03-27 | 2023-06-27 | 无锡市友信赢特环境工程有限公司 | Active carbon thermal cycle regeneration system and process thereof |
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Application publication date: 20200904 |