CN110354831A - Powder activated carbon regeneration method - Google Patents
Powder activated carbon regeneration method Download PDFInfo
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- CN110354831A CN110354831A CN201910617539.4A CN201910617539A CN110354831A CN 110354831 A CN110354831 A CN 110354831A CN 201910617539 A CN201910617539 A CN 201910617539A CN 110354831 A CN110354831 A CN 110354831A
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- activated carbon
- waste
- powdered activated
- woven fabrics
- active carbon
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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
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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
- B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
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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
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
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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
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of powdered active carbon regenerating methods, include the following steps: screening-washing-regeneration-acidification-ultrasonic regeneration-collection-neutralization waste water.The present invention is washed waste powdered activated carbon by specific cleaning solution, change previous powdered activated carbon do not allow it is easy to wash, the impurity contained is more, washing step is complicated, and the problem of influencing later regeneration rate, is avoided the problems such as recycling rate is low after regenerating, is washed using ultrasonic unit, hole is not injured, its adsorption capacity is further kept.
Description
Technical field
The present invention relates to technical field of fine, and in particular to a kind of powder activated carbon regeneration method.
Background technique
Active carbon is widely used in chemical industry, food, pharmacy and environmental protection etc. as a kind of excellent high-efficiency adsorbent
Every field, used active carbon are discarded, filled or are burned without processing, and not only waste of resource, will also cause two
Secondary pollution, actually activated carbon adsorption are a physical processes, by using suitable regeneration techniques by used active carbon
The substance of absorption carries out desorption removal, so that it is replied original characterization of adsorption, can achieve the purpose of reuse, both real in this way
The minimizing of waste active carbon is showed, innoxious and recycling decreases the waste of the energy.
Currently, the regeneration of waste active carbon mainly has bio-regeneration method, Photocatalytic Regeneration method etc., and still, powdery waste active carbon
Because partial size is smaller, lighter weight, traditional Regenevating Waste Activated Carbon method is easy to bring active carbon loss excessive, can go out in the process
Existing fugitive dust is excessive, causes secondary pollution to environment.
Summary of the invention
Goal of the invention: the purpose of the invention is to make up the deficiency of existing investigative technique, a kind of powdered work is provided
Property carbon regeneration method.
Technical solution: a kind of powdered active carbon regenerating method includes the following steps:
1) it screens: waste powdered activated carbon being dried to moisture content in dryer lower than 40%, by the useless work after drying
Property charcoal tiles on the non-woven fabrics for have hole, and non-woven fabrics both sides are connected to the both ends of shaking device, starting shock device, nothing
Woven fabric shakes under its drive, and the ash content and solid impurity in waste powdered activated carbon are fallen from the hole of non-woven fabrics；
2) wash: the waste powdered activated carbon that non-woven fabrics upper surface is reserved is collected, and is added in hydrochloric acid solution, and pH concentration is adjusted
For 3-4, stirring is heated to 110 DEG C, and flow back 9h, and cooled and filtered, gained filter residue is dry after cleaning solution washs, and is washed
Waste powdered activated carbon after washing；
3) it regenerates: powdered activated carbon being put into pond, is constantly passed through vapor from bottom of pond, maintain 90 DEG C or more, and
Continuous overturning powdered activated carbon in the process, is arranged sieve in pond, after 1-2h, stops, standing, charcoal upper layer is steeped below active carbon
Foam is removed；
4) it is acidified: being passed through water purification, charcoal is washed；Dilute hydrochloric acid is added, adjusts pH value to 1-2；
5) ultrasonic regeneration: being put into ultrasonic processing apparatus for the charcoal after acidification, adjusts the power of ultrasonic unit to 150-
200w；
6) it collects: the charcoal after ultrasonic regeneration being put into a secondary cyclone, is come out from cyclone separator
After be transferred to drying converter heating, drying, collect；
7) it neutralizes waste water: the NaOH solution that mass concentration is 2% is added and carries out neutralization waste water, after waste water is in neutrality, thoroughly
Lightness is higher and free from extraneous odour can discharge later.
Preferably, the hole of the non-woven fabrics is 2000-2500 mesh.
Preferably, cleaning solution is by anionic surfactant, sodium citrate, potassium chloride, distillation in the step 2)
Water, ethyl alcohol；The anionic surfactant: sodium citrate: potassium chloride: distilled water: the mass ratio of ethyl alcohol is 1-2:1.5-
4:3-4:40-50:10-25。
Preferably, the vapor in step 3) after condenser condensation, into wastewater collection pond, can continue next time
It uses.
In the present invention, waste powdered activated carbon is washed by specific cleaning solution, changes previous powdered activated carbon
Do not allow easy to wash, the impurity contained is more, and washing step is complicated, and the problem of influence later regeneration rate, after avoiding regeneration
The problems such as recycling rate is low, is washed using ultrasonic unit, does not injure hole, further keeps its adsorption rate.
Specific embodiment
The present invention will be described below by way of specific embodiments, but the present invention is not limited thereto.In following embodiments
The experimental method is unless otherwise specified conventional method；The reagent and material unless otherwise specified can be from business
Approach obtains, the scope of the patents that following example is not intended to limit the invention, all equivalence enforcements without departing from carried out by the present invention
Or change, it is intended to be limited solely by the scope of this patent.
Embodiment 1:
A kind of powdered active carbon regenerating method, includes the following steps:
1) it screens: waste powdered activated carbon being dried to moisture content in dryer lower than 40%, by the useless work after drying
Property charcoal tiles on the non-woven fabrics for have hole, and non-woven fabrics both sides are connected to the both ends of shaking device, starting shock device, nothing
Woven fabric shakes under its drive, and the ash content and solid impurity in waste powdered activated carbon are fallen from the hole of non-woven fabrics, nonwoven
The hole of cloth is 2000 mesh；
2) wash: the waste powdered activated carbon that non-woven fabrics upper surface is reserved is collected, and is added in hydrochloric acid solution, and pH concentration is adjusted
It is 3, stirring is heated to 110 DEG C, and flow back 9h, and cooled and filtered, gained filter residue is dry after cleaning solution washs, and is washed
Waste powdered activated carbon afterwards, cleaning solution is by anionic surfactant, sodium citrate, potassium chloride, distilled water, ethyl alcohol；Described
Anionic surfactant: sodium citrate: potassium chloride: distilled water: the mass ratio of ethyl alcohol is 1:1.5:3:40:10；
3) it regenerates: powdered activated carbon being put into pond, is constantly passed through vapor from bottom of pond, maintain 90 DEG C or more, and
Continuous overturning powdered activated carbon in the process, is arranged sieve in pond, after 1h, stops, standing, by charcoal upper foam below active carbon
It removes, in this step, vapor, into wastewater collection pond, can continue to use next time after condenser condensation；
4) it is acidified: being passed through water purification, charcoal is washed；Dilute hydrochloric acid is added, adjusts pH value to 1；
5) ultrasonic regeneration: being put into ultrasonic processing apparatus for the charcoal after acidification, adjusts the power of ultrasonic unit to 150w；
6) it collects: the charcoal after ultrasonic regeneration being put into a secondary cyclone, is come out from cyclone separator
After be transferred to drying converter heating, drying, collect；
7) it neutralizes waste water: the NaOH solution that mass concentration is 2% is added and carries out neutralization waste water, after waste water is in neutrality, thoroughly
Lightness is higher and free from extraneous odour can discharge later.
Embodiment 2:
A kind of powdered active carbon regenerating method, includes the following steps:
1) it screens: waste powdered activated carbon being dried to moisture content in dryer lower than 40%, by the useless work after drying
Property charcoal tiles on the non-woven fabrics for have hole, and non-woven fabrics both sides are connected to the both ends of shaking device, starting shock device, nothing
Woven fabric shakes under its drive, and the ash content and solid impurity in waste powdered activated carbon are fallen from the hole of non-woven fabrics, nonwoven
The hole of cloth is 2500 mesh；
2) wash: the waste powdered activated carbon that non-woven fabrics upper surface is reserved is collected, and is added in hydrochloric acid solution, and pH concentration is adjusted
For 3-4, stirring is heated to 110 DEG C, and flow back 9h, and cooled and filtered, gained filter residue is dry after cleaning solution washs, and is washed
Waste powdered activated carbon after washing, cleaning solution is by anionic surfactant, sodium citrate, potassium chloride, distilled water, ethyl alcohol；It is described
Anionic surfactant: sodium citrate: potassium chloride: distilled water: the mass ratio of ethyl alcohol be 2:4:3:50:25；
3) it regenerates: powdered activated carbon being put into pond, is constantly passed through vapor from bottom of pond, maintain 90 DEG C or more, and
Continuous overturning powdered activated carbon in the process, is arranged sieve in pond, after 2h, stops, standing, by charcoal upper foam below active carbon
It removes；
4) it is acidified: being passed through water purification, charcoal is washed；Dilute hydrochloric acid is added, adjusts pH value to 2；
5) ultrasonic regeneration: being put into ultrasonic processing apparatus for the charcoal after acidification, adjusts the power of ultrasonic unit to 200w；
6) it collects: the charcoal after ultrasonic regeneration being put into a secondary cyclone, is come out from cyclone separator
After be transferred to drying converter heating, drying, collect；
7) it neutralizes waste water: the NaOH solution that mass concentration is 2% is added and carries out neutralization waste water, after waste water is in neutrality, thoroughly
Lightness is higher and free from extraneous odour can discharge later.
Vapor in step 3), into wastewater collection pond, can continue to use next time after condenser condensation.
Embodiment 3:
A kind of powdered active carbon regenerating method, includes the following steps:
1) it screens: waste powdered activated carbon being dried to moisture content in dryer lower than 40%, by the useless work after drying
Property charcoal tiles on the non-woven fabrics for have hole, and non-woven fabrics both sides are connected to the both ends of shaking device, starting shock device, nothing
Woven fabric shakes under its drive, and the ash content and solid impurity in waste powdered activated carbon are fallen from the hole of non-woven fabrics, nonwoven
The hole of cloth is 2300 mesh；
2) wash: the waste powdered activated carbon that non-woven fabrics upper surface is reserved is collected, and is added in hydrochloric acid solution, and pH concentration is adjusted
For 3-4, stirring is heated to 110 DEG C, and flow back 9h, and cooled and filtered, gained filter residue is dry after cleaning solution washs, and is washed
Waste powdered activated carbon after washing, cleaning solution is by anionic surfactant, sodium citrate, potassium chloride, distilled water, ethyl alcohol；It is described
Anionic surfactant: sodium citrate: potassium chloride: distilled water: the mass ratio of ethyl alcohol be 1-2:1.5-4:3-4:40-50:
10-25；
3) it regenerates: powdered activated carbon being put into pond, is constantly passed through vapor from bottom of pond, maintain 90 DEG C or more, and
Continuous overturning powdered activated carbon in the process, is arranged sieve in pond, after 1-2h, stops, standing, charcoal upper layer is steeped below active carbon
Foam is removed；
4) it is acidified: being passed through water purification, charcoal is washed；Dilute hydrochloric acid is added, adjusts pH value to 1.5；
5) ultrasonic regeneration: being put into ultrasonic processing apparatus for the charcoal after acidification, adjusts the power of ultrasonic unit to 180w；
6) it collects: the charcoal after ultrasonic regeneration being put into a secondary cyclone, is come out from cyclone separator
After be transferred to drying converter heating, drying, collect；
7) it neutralizes waste water: the NaOH solution that mass concentration is 2% is added and carries out neutralization waste water, after waste water is in neutrality, thoroughly
Lightness is higher and free from extraneous odour can discharge later.
In order to further embody beneficial effects of the present invention, spy proposes following test example:
The adsorption experiment of the organic matter progress active carbon in sewage, the product in embodiment 1-3 are replaced using methylene blue
When being detected, methylene blue adsorptive value is measured according to GB/T12496.10-1999；Experiment shows to implement in the present invention
The more former charcoal adsorption capacity of activated carbon adsorption power in example 1-3 improves 30-40%, and recycling rate promotes 30-40%, conversion ratio
It is 50%.
Claims (4)
1. a kind of powdered active carbon regenerating method, characterized by the following steps:
1) it screens: waste powdered activated carbon being dried to moisture content in dryer lower than 40%, by the waste active carbon after drying
It tiles on the non-woven fabrics for have hole, non-woven fabrics both sides are connected to the both ends of shaking device, starting shock device, non-woven fabrics
It is shaken under its drive, the ash content and solid impurity in waste powdered activated carbon are fallen from the hole of non-woven fabrics；
2) wash: the waste powdered activated carbon that non-woven fabrics upper surface is reserved is collected, and is added in hydrochloric acid solution, and adjusting pH concentration is 3-
4, stirring is heated to 110 DEG C, and flow back 9h, and cooled and filtered, gained filter residue is dry after cleaning solution washs, after obtaining washing
Waste powdered activated carbon；
3) it regenerates: powdered activated carbon being put into pond, is constantly passed through vapor from bottom of pond, maintains 90 DEG C or more, and process
In constantly overturn powdered activated carbon, sieve is set below active carbon in pond, after 1-2h, stops, standing, charcoal upper foam is clear
It removes；
4) it is acidified: being passed through water purification, charcoal is washed；Dilute hydrochloric acid is added, adjusts pH value to 1-2；
5) ultrasonic regeneration: being put into ultrasonic processing apparatus for the charcoal after acidification, adjusts the power of ultrasonic unit to 150-200w；
6) it collects: the charcoal after ultrasonic regeneration is put into a secondary cyclone, turn after being come out from cyclone separator
Enter to drying converter heating, drying, collects；
7) it neutralizes waste water: the NaOH solution that mass concentration is 2% is added and carries out neutralization waste water, after waste water is in neutrality, transparency
It can be discharged after higher and free from extraneous odour.
2. powdered active carbon regenerating method as described in claim 1, it is characterised in that: the hole of the non-woven fabrics is
2000-2500 mesh.
3. powdered active carbon regenerating method as described in claim 1, it is characterised in that: in the step 2), cleaning solution by
Anionic surfactant, sodium citrate, potassium chloride, distilled water, ethyl alcohol；The anionic surfactant: sodium citrate:
Potassium chloride: distilled water: the mass ratio of ethyl alcohol is 1-2:1.5-4:3-4:40-50:10-25.
4. powdered active carbon regenerating method as described in claim 1, it is characterised in that: the vapor in step 3) is by condensation
After device condensation, into wastewater collection pond, it can continue to use next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910617539.4A CN110354831A (en) | 2019-07-10 | 2019-07-10 | Powder activated carbon regeneration method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910617539.4A CN110354831A (en) | 2019-07-10 | 2019-07-10 | Powder activated carbon regeneration method |
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| CN110354831A true CN110354831A (en) | 2019-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114073943A (en) * | 2021-11-25 | 2022-02-22 | 宁夏锦鹏炭业有限公司 | Powdered activated carbon regeneration device based on airflow heating and regeneration process thereof |
| CN114229843A (en) * | 2021-12-24 | 2022-03-25 | 贵州重力科技环保有限公司 | Method for activating and regenerating waste activated carbon after harmless treatment of waste mercury catalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989435A (en) * | 2012-12-28 | 2013-03-27 | 湖北君集水处理有限公司 | Method for regenerating activated carbon |
| CN103084155A (en) * | 2011-11-03 | 2013-05-08 | 中国地质大学（北京） | Microwave-assisted activated carbon regeneration method |
-
2019
- 2019-07-10 CN CN201910617539.4A patent/CN110354831A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084155A (en) * | 2011-11-03 | 2013-05-08 | 中国地质大学（北京） | Microwave-assisted activated carbon regeneration method |
| CN102989435A (en) * | 2012-12-28 | 2013-03-27 | 湖北君集水处理有限公司 | Method for regenerating activated carbon |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114073943A (en) * | 2021-11-25 | 2022-02-22 | 宁夏锦鹏炭业有限公司 | Powdered activated carbon regeneration device based on airflow heating and regeneration process thereof |
| CN114229843A (en) * | 2021-12-24 | 2022-03-25 | 贵州重力科技环保有限公司 | Method for activating and regenerating waste activated carbon after harmless treatment of waste mercury catalyst |
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Effective date of registration: 20211110 Address after: 233000 in the original nursing home, Xiaoxi Town, Wuhe County, Bengbu City, Anhui Province Applicant after: Anhui Xinhui Carbon Industry Co., Ltd Address before: 211500 Room 215, building 6, standard room, Nanjing Siqiao economic Park, Donggou, Longpao street, Liuhe District, Nanjing, Jiangsu Province Applicant before: Nanjing anjiete Environmental Protection Technology Co., Ltd |
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