CN105854857A - Activated carbon electro-thermal regeneration equipment and using method thereof - Google Patents
Activated carbon electro-thermal regeneration equipment and using method thereof Download PDFInfo
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- CN105854857A CN105854857A CN201610378996.9A CN201610378996A CN105854857A CN 105854857 A CN105854857 A CN 105854857A CN 201610378996 A CN201610378996 A CN 201610378996A CN 105854857 A CN105854857 A CN 105854857A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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Abstract
The invention discloses activated carbon electro-thermal regeneration equipment and a using method thereof. The equipment is characterized by comprising a tank body, an electrode and a power supply, wherein a water inlet, a water draining port and a vent port are formed in the top of the tank body, and a water outlet is formed in the bottom of the tank body; the electrode is positioned in a fixed carbon bed inside the tank body, and is connected with the power supply. The activated carbon electro-thermal regeneration equipment integrates absorption and regeneration into a whole, the activated carbon does not need transfer or drying treatment after saturated absorption, electro-thermal regeneration is carried out at 150-200 DEG C by direct electrification in situ, steam is vented from the vent port after regeneration is completed, and the equipment is turned into normal absorption operation.
Description
Technical field
The present invention relates to charcoal absorption regeneration field, particularly relate to a kind of active carbon electric heating regenerating equipment and use thereof
Method.
Background technology
Activated carbon is a kind of to have flourishing pore structure, huge specific surface area and the carbonaceous material of extremely strong adsorption capacity,
It is widely used at water treatment field.Activated carbon will certainly reach to adsorb saturated after absorption a period of time,
Adsorption efficiency declines, and more renews charcoal if directly abandoned, environment not only also creates the biggest resource
Waste, increases operating cost.So after charcoal absorption is saturated, for economizing on resources, reducing operating cost can be right
It carries out regenerative operation.Regenerating active carbon is through physics, chemistry or raw by the activated carbon of various for saturated absorption impurity
The methods such as thing chemistry process so that it is recover adsorption capacity, thus extend the service life of activated carbon.
Regeneration method of active carbon is a lot, and for different application conditions, domestic and international researcher proposes various activity
Carbon regeneration method, such as hot recycling method, wet oxidation process, bio-regeneration method, electrochemical regeneration method, microwave again
Think of a way, supercritical fluid method of reproduction etc., but, the most only hot recycling industrially obtains relatively broad application.
Summary of the invention
The technical problem to be solved is to be not required to transfer activity charcoal, directly to consolidating in active carbon adsorption equipment
Determining charcoal bed electro-thermal regeneration, in order to solve the problems referred to above, the present invention provides a kind of active carbon electric heating regenerating equipment, and it is special
Levying and be, including tank body, electrode and power supply, tank body top is provided with water inlet, discharge outlet and exhaust outlet, tank body
Bottom is provided with delivery port；Electrode is positioned in the fixed carbon bed of tank interior, and is connected with power supply.
Further, tank body is the pressure grade high-pressure bottle more than 16 kilograms.
Further, electrode includes that cylindrical electrode group and insulation board, cylindrical electrode group include that concentric spacing is sheathed
Enter electricity electrode and go out electricity electrode, insulation board alternates in cylindrical electrode group and at the circle of cylindrical electrode group
120 ° of angles of Zhou Shangcheng interval is arranged, and will enter electricity electrode separation for the most disconnected first entering electric section, second entering
Electricity section, the 3rd enter electricity section.
Further, power supply includes 3 groups of single phase ac transformer group, the respectively first transformer group, the second transformation
Device group and the 3rd transformer group；Each transformer group include first input end, the second input, the first output and
Second output, the first input end of the first transformer group and the second input respectively with the first phase of three phase mains and
Second phase is connected, the first input end of the second transformer group and the second input respectively with the second phase of three phase mains and
Third phase is connected, the first input end of the 3rd transformer group and the second input respectively with the third phase of three phase mains and
First phase is connected, and the first output of the first transformer group, the second transformer group and the 3rd transformer group is arranged to
Respectively connect first enter electricity section, second enter electricity section and the 3rd enter electricity section, the first transformer group, the second transformer group and
Second output of the 3rd transformer group is in parallel and is set to connect electricity electrode.
A kind of method that the invention discloses active carbon electric heating regenerating equipment, comprises the steps:
Step one: detect the COD value of waste water at the mouth of a river；
Step 2: when the COD value detected in step one is more than 60mg/L, equipment stops water inlet；
Step 3: turn on the power, electrifying electrodes heat production, make the temperature of tank interior rise to 200 °, and keep
20-30min；
Step 4: open exhaust outlet, steam in drain tank；
Step 5: close exhaust outlet and discharge outlet, open water inlet and delivery port, equipment proceeds to normal sorption and runs.
Preferably, before step 3, active-carbon bed in tank body is carried out pure water backwash；
Preferably, before step 3, active-carbon bed in tank body is carried out successively pure water backwash, hydrochloric acid recoil
Wash and pure water backwash again；
Preferably, before step 3, active-carbon bed in tank is carried out pure water backwash, adds oxygen regeneration afterwards
Agent；
Preferably, before step 3, in tank active-carbon bed carry out successively pure water backwash, hydrochloric acid recoil
Wash and pure water backwash again, add regenerating oxidation afterwards
There is advantages that
1, a kind of active carbon electric heating regenerating equipment of the present invention integrates absorption and regenerates, and charcoal absorption is satisfied
With rear, being not required to transfer, be not required to be dried process, direct-electrifying carries out electro-thermal regeneration, regeneration temperature in situ
150-200 DEG C, after regeneration ending, being discharged by steam by exhaust outlet, equipment proceeds to normal sorption and runs.
2, the cylindrical electrode group of the present invention and AC transformer group with the use of, make up single phase poaer supply output work
The shortcoming that rate is limited, it is possible to increase the production capacity of activated carbon regenerating equipment.
3, a kind of active carbon electric heating regenerating equipment regeneration temperature of the present invention is low, effective, it is low to consume energy, charcoal damages
Consumption rate is low, simple to operate, it is little to take up an area.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of active carbon electric heating regenerating equipment of the present invention.
Fig. 2 is the structural representation of the electrode of one embodiment of the present invention.
Fig. 3 is the structural representation of the power supply in one embodiment of the present invention.
Fig. 4 is active-carbon bed absorption property schematic diagram in embodiment 5.
Detailed description of the invention
Below in conjunction with the accompanying drawings and with reference to data, the present invention is described in further detail.Should be understood that embodiment is simply
In order to demonstrate the invention, rather than limit the scope of invention by any way.
As it is shown in figure 1, a kind of active carbon electric heating regenerating equipment disclosed by the invention, including tank body 1, electrode 2
With power supply 7, tank body 1 top is provided with water inlet 4, discharge outlet 5 and exhaust outlet 3, is provided with bottom tank body 1
Delivery port 6, electrode 2 is positioned in the fixed carbon bed within tank body 1, and is connected with power supply 1.
This tank body is the pressure grade high-pressure bottle more than 16 kilograms, so that the temperature energy of the steam in tank
Enough reach 150 DEG C-200 DEG C.
As in figure 2 it is shown, in one embodiment, electrode 2 includes cylindrical electrode group and insulation board 23, cylinder
Shape electrode group includes sheathed the entering electricity electrode 21 and go out electricity electrode 22 of concentric spacing, and insulation board 23 alternates
Arrange in 120 ° of angle intervals in cylindrical electrode group and on the circumference of cylindrical electrode group, and electricity electrode will be entered
21 be divided into the most disconnected first enter electricity section 211, second enter electricity section the 212, the 3rd enter electricity section 213.
Including cylindrical electrode group and insulation board 23, cylindrical electrode group includes first that concentric spacing successively is sheathed
Go out electricity electrode 21, enter electricity electrode 22 and second go out electricity electrode 23, the material of electrode can be graphite, stainless steel,
The conductive corrosion-resistant materials such as titanium, insulation board 24 alternates in cylindrical electrode group, and will enter electricity electrode 22
Be divided into the most disconnected first enter electricity section 221, second enter electricity section the 222, the 3rd enter electricity section 223, first enters electricity
The first phase line that section 221 can be used in three phase mains connects, and second enters electricity section 222 can be used in and three phase mains
The second phase line connect, the 3rd enters electricity section 223 can be used in third phase line with three phase mains and connects；First goes out electricity
Electrode 21 goes out electricity electrode 23 center line parallel with one another and with three phase mains and is connected with second.By joining with three phase mains
Close and use, make up the shortcoming that single phase poaer supply power output is limited, it is possible to increase the production capacity of activated carbon regenerating equipment.
In one embodiment, enter electricity electrode and sheathed therein go out electricity electrode between there is the first spacing,
Go out electricity electrode outside with being set in it has the second spacing, the first spacing and the setting of the second spacing to enter electricity electrode
For making into electricity electrode and sheathed going out between electricity electrode the resistance of carbon bed and enter electricity electrode and be set in therein
It is identical that what it was outside goes out the resistance of carbon bed between electricity electrode.So that balanced current distribution in activated carbon carbon bed it
In, activated carbon produces heat because self possesses resistance, and uniformity of temperature profile also gradually rises and reaches to regenerate purpose,
Thus improve energy utilization rate, and reduce energy consumption.The electrode of the present invention is also applied for other suctions with electric conductivity
The electro-thermal regeneration of attached dose, such as graphite etc..
As it is shown on figure 3, in one embodiment, power supply 7 includes organizing single phase ac transformer group, respectively the
One transformer group the 71, second transformer group 72 and the 3rd transformer group 73.Wherein, each transformer group includes
At least 1 single phase ac transformer, each single phase ac transformer includes that first input end point 701, second inputs
End points 702, cathode output end point 703 and cathode output end point 704, the first of each single phase ac transformer is defeated
Enter end points the 701, second input endpoint 702 respectively with the corresponding first input end of transformer group, the second input
Be connected, the cathode output end point 703 of each single phase ac transformer respectively with the first output of corresponding transformer group
End is connected, and the cathode output end point 704 of each single phase ac transformer is defeated with the second of corresponding transformer group respectively
Go out end to be connected.In one embodiment, this single phase ac transformer is single phase ac electric welding machine.
Each transformer group includes first input end, the second input, the first output and the second output, first
The first input end 711 of transformer group and the second input 712 respectively with the first phase and the second phase phase of three phase mains
Even, the first input end 721 of the second transformer group and the second input 722 respectively with the second phase of three phase mains and
Third phase be connected, the first input end 731 of the 3rd transformer group and the second input 732 respectively with three phase mains
Third phase and the first phase are connected, the first output of first output the 713, second transformer group of the first transformer group
First output 733 of end 723 and the 3rd transformer group is respectively used to connect load as the positive pole output of power supply 7
Three independently enter electricity section, second output the 714, second transformer group of the first transformer group second output
Second output 734 of end 724 and the 3rd transformer group is used for connection as the negative pole output-parallel of power supply 7
The negative pole of load.
In one embodiment, at guarantee output voltage below 40 volts, the supply unit phase of the present invention
Can be the most used in parallel between Hu, realize exporting the increase of general power to increase output total current.
The invention also discloses a kind of method using active carbon electric heating regenerating equipment, active carbon electric heating regenerating is set
It is 1m that equipment processes the efficiency of waste water3/ h, and take the bio-chemical effluent of coking chemical waste water as water inlet water source, this water inlet
COD ＜ 150mg/L, after a kind of active carbon electric heating regenerating equipment of the present invention, detects the water outlet at the mouth of a river 6
COD ＜ 60mg/L, then meet related request；When the COD ＞ 60mg/L of water outlet being detected, then illustrate to live
Property charcoal absorption saturated, equipment stops water inlet, needs to regenerate activated carbon, and the regeneration period of new activated carbon is
48h, does not i.e. have used activated carbon to adsorb after 48h saturated.It is specifically described activity below in conjunction with embodiment
Charcoal regeneration method.
In following example, pure water rinsing is that the impurity do not accumulated on charcoal bed and particle are rinsed, hydrochloric acid or
Sulfuric acid is the metal ion such as calcium that will adsorb on activated carbon, magnesium, and iron and aluminium etc. are carried out, and these metal ions add
Heat also will not be decomposed, and finally lower boiling organic matter can be made to be desorbed with heating, and the regenerating oxidant of addition is
High boiling point organic compound is carried out oxidation Decomposition.
Embodiment 1 electro-thermal regeneration
After charcoal absorption is saturated, closed tank, turn on the power 7, electrode 2 is energized heat production, makes tank body 1
Interior temperature is increased to 200 °, and keeps 20-30min, after terminating, opens exhaust outlet 3, steams in drain tank
Vapour；After steam discharging, close exhaust outlet 3 and discharge outlet 5, open water inlet 4 and delivery port 6, if
The standby normal sorption that proceeds to is run.Timing detects the water outlet COD at the mouth of a river 6, and testing result is shown in Table 1, according to
It was found that directly carry out electro-thermal regeneration after charcoal absorption is saturated, run equipment water outlet COD after 40h
Reaching 60mg/L, charcoal absorption is saturated, with new charcoal 48h absorption saturation ratio relatively, and charcoal absorption after regeneration
Capacity recovers the most completely, recovers 83.3%, and the charcoal absorption i.e. obtained by the present embodiment is saturated required
The time wanted is the 83.3% of the saturated required 48h of new carbon adsorption.
Table 1
| Influent COD (mg/L) | Operation time (h) | Water outlet COD (mg/L) |
| 150 | 0 | 35 |
| 150 | 8 | 37 |
| 150 | 16 | 38.5 |
| 150 | 24 | 40 |
| 150 | 30 | 45 |
| 150 | 38 | 53 |
| 150 | 43 | 60 |
The backwash of embodiment 2 pure water and electro-thermal regeneration
After charcoal absorption is saturated, first uses pure water that charcoal bed is backwashed, then carrying out electro-thermal regeneration.
Operate as follows: only opening delivery port 6 and discharge outlet 5, backwashing water is entered discharge outlet 5 row by delivery port 6
Go out, backwashing time 2-3min.Recoil turns on the power after terminating and carries out thermal regeneration, treats that temperature is increased to 200
When spending, after keeping 200 degree of 20-30min, steam in tank body is discharged by exhaust outlet 3, after terminating, the row of opening
Gas port 3, steam in drain tank；After steam discharging, close exhaust outlet 3 and discharge outlet 5, open into water
Mouth 4 and delivery port 6, equipment proceeds to normal sorption and runs.Timing detects the water outlet COD at the mouth of a river 6, inspection
Survey the results are shown in Table 2, and according to result, after running 43h, equipment water outlet COD reaches 60mg/L, activated carbon
Adsorbing saturated, with new charcoal 48h absorption saturation ratio relatively, after regeneration, charcoal absorption capacity recovers the most completely,
Recovering 90%, the charcoal absorption saturated required time i.e. obtained by the present embodiment is that new carbon adsorption is satisfied
With required 48h 90%.
Table 2
| Influent COD (mg/L) | Operation time (h) | Water outlet COD (mg/L) |
| 150 | 0 | 35 |
| 150 | 8 | 37 |
| 150 | 16 | 38.5 |
| 150 | 24 | 40 |
| 150 | 30 | 45 |
| 150 | 38 | 53 |
| 150 | 43 | 60 |
The backwash of embodiment 3 pure water, hydrochloric acid backwash, again pure water backwash and electro-thermal regeneration
Charcoal absorption is saturated, first uses pure water to backwash charcoal bed, backwashes, with hydrochloric acid afterwards the most again
Backwash with pure water, finally carry out electro-thermal regeneration.Operate as follows: only open delivery port 6 and discharge outlet 5, recoil
Wash water is entered discharge outlet 5 by delivery port 6 and discharges, backwashing time 2-3min.Recoil the salt of pH=2 after terminating
Acid is added generating apparatus again by delivery port 6, soaks 5-10min, is then discharged by hydrochloric acid by delivery port 6,
Carry out 1 st pure water backwash, backwashing time 2-3min.Recoil turns on the power after terminating and carries out thermal regeneration,
When temperature is increased to 200 degree, after keeping 200 degree of 20-30min, steam in tank body is discharged by exhaust outlet 3,
After end, open exhaust outlet 3, steam in drain tank；After steam discharging, close exhaust outlet 3 and draining
Mouth 5, opens water inlet 4 and delivery port 6, and equipment proceeds to normal sorption and runs.Timing detects the mouth of a river 6
Water outlet COD, testing result is shown in Table 3, and after running 46h, equipment water outlet COD reaches 60mg/L, and activated carbon is inhaled
Attached saturated, with new charcoal 48h absorption saturation ratio relatively, after regeneration, charcoal absorption capacity recovers the most completely, recovers
95.8%, the charcoal absorption saturated required time i.e. obtained by the present embodiment is the saturated institute of new carbon adsorption
The 95.8% of the 48h needed.
Table 3
| Influent COD (mg/L) | Operation time (h) | Water outlet COD (mg/L) |
| 150 | 0 | 32 |
| 150 | 8 | 34 |
| 150 | 16 | 37 |
| 150 | 24 | 40 |
| 150 | 30 | 44 |
| 150 | 38 | 50 |
| 150 | 42 | 54 |
| 150 | 46 | 60 |
The backwash of embodiment 4 pure water, regenerating oxidant oxidation regeneration, electro-thermal regeneration
Charcoal absorption is saturated, first uses pure water to backwash charcoal bed, carries out after adding regenerating oxidant afterwards
Electro-thermal regeneration.Operate as follows: only opening delivery port 6 and discharge outlet 5, backwashing water is entered draining by delivery port 6
Mouth 5 is discharged, backwashing time 2-3min.The regenerating oxidant identical with charcoal bed volume is sent into after terminating by recoil,
Turn on the power after being added again generating apparatus by delivery port 6 and carry out thermal regeneration, when temperature is increased to 200 degree, keep
After 200 degree of 20-30min, steam in tank body is discharged by exhaust outlet 3, after steam empties, use pure water to charcoal
Bed backwashes, and closes exhaust outlet 3 and discharge outlet 5, opens water inlet 4 and delivery port 6, and equipment proceeds to
Normal sorption is run.Timing detects the water outlet COD at the mouth of a river 6, and testing result is shown in Table 4, result display fortune
After row 48h, equipment water outlet COD reaches 60mg/L, and charcoal absorption is saturated, with new charcoal 48h absorption saturation ratio relatively,
After regeneration, charcoal absorption capacity recovers completely, recovers 100%, and the activated carbon i.e. obtained by the present embodiment is inhaled
The attached saturated required time is the 100% of the saturated required 48h of new carbon adsorption.
Table 4
| Influent COD (mg/L) | Operation time (h) | Water outlet COD (mg/L) |
| 150 | 0 | 30 |
| 150 | 8 | 33 |
| 150 | 16 | 36 |
| 150 | 24 | 40 |
| 150 | 30 | 45 |
| 150 | 38 | 51 |
| 150 | 46 | 57 |
| 150 | 48 | 60 |
Embodiment 5 pure water backwash, hydrochloric acid backwash, again pure water backwash, regenerating oxidant oxidation regeneration and
Electro-thermal regeneration
Charcoal absorption is saturated, first uses pure water to backwash charcoal bed, backwashes, with hydrochloric acid afterwards the most again
Backwash with pure water, finally carry out electro-thermal regeneration.Operate as follows: only open delivery port 6 and discharge outlet 5, recoil
Wash water is entered discharge outlet 5 by delivery port 6 and discharges, backwashing time 2-3min.Recoil the salt of pH=2 after terminating
Acid is added generating apparatus again by delivery port 6, soaks 5-10min, is then discharged by hydrochloric acid by delivery port 6,
Carry out 1 st pure water backwash, backwashing time 2-3min.Recoil will be with charcoal bed volume by delivery port 6 after terminating
Identical regenerating oxidant adds equipment, turns on the power and carries out thermal regeneration, when temperature is increased to 200 degree,
After keeping 200 degree of 20-30min, steam in tank body is discharged by exhaust outlet 3, after terminating, opens exhaust outlet 3,
Steam in drain tank；After steam discharging, use pure water that charcoal bed is backwashed, close exhaust outlet 3 and row
The mouth of a river 5, opens water inlet 4 and delivery port 6, and equipment proceeds to normal sorption and runs.Timing detects the mouth of a river 6
Water outlet COD, testing result is shown in Table 5, and after running 50h, equipment water outlet COD reaches 60mg/L, and activated carbon is inhaled
Attached saturated, with new charcoal 48h absorption saturation ratio relatively, after regeneration, charcoal absorption capacity is better than new charcoal.
As shown in Figure 4, being carried out continuously three cycles by this regeneration mode, regenerating active carbon is stable, activated adoption value
Recover preferably.
Table 5
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art
Just many modifications and variations can be made according to the design of the present invention without creative work.Therefore, all technology neck
In territory, technical staff is the most on the basis of existing technology by logic analysis, reasoning or limited
Test available technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (9)
1. an active carbon electric heating regenerating equipment, it is characterised in that including that tank body, electrode and power supply, described tank body top are provided with water inlet, discharge outlet and exhaust outlet, described tank base is provided with delivery port；Described electrode is positioned in the fixed carbon bed of described tank interior, and is connected with described power supply.
2. a kind of active carbon electric heating regenerating equipment as claimed in claim 1, it is characterised in that described tank body is the pressure grade high-pressure bottle more than 16 kilograms.
3. a kind of active carbon electric heating regenerating equipment as claimed in claim 1, it is characterized in that, described electrode includes cylindrical electrode group and insulation board, described cylindrical electrode group includes sheathed the entering electricity electrode and go out electricity electrode of concentric spacing, described insulation board alternates in described cylindrical electrode group and on the circumference of described cylindrical electrode group, and in 120 ° of angles, interval is arranged, and by described enter electricity electrode separation for the most disconnected first entering electricity section, second entering electricity section, the 3rd enter electricity section.
4. a kind of active carbon electric heating regenerating equipment as claimed in claim 2, it is characterised in that described power supply includes 3 groups of single phase ac transformer group, the respectively first transformer group, the second transformer group and the 3rd transformer group；Each transformer group includes first input end, second input, first output and the second output, the first input end of described first transformer group and the second input are connected with the second phase with the first phase of three phase mains respectively, the first input end of described second transformer group and the second input are connected with third phase with the second phase of described three phase mains respectively, the first input end of described 3rd transformer group and the second input are connected with third phase and first phase of described three phase mains respectively, described first transformer group, first output of the second transformer group and the 3rd transformer group is arranged to connect described first respectively and enters electricity section, second enters electricity section and the 3rd enters electricity section, described first transformer group, second output of the second transformer group and the 3rd transformer group is in parallel and is set to described in connection go out electricity electrode.
5. the method using a kind of active carbon electric heating regenerating equipment as claimed in claim 1, it is characterised in that comprise the steps:
Step one: detect the COD value of waste water of described delivery port；
Step 2: when the COD value detected in step one is more than 60mg/L, equipment stops water inlet；
Step 3: open described power supply, electrifying electrodes heat production, makes the temperature of tank interior rise to 200 °, and keeps 20-30min；
Step 4: open described exhaust outlet, steam in drain tank；
Step 5: close exhaust outlet and discharge outlet, open water inlet and delivery port, equipment proceeds to normal sorption and runs.
6. method as claimed in claim 6, it is characterised in that before described step 3, carries out pure water backwash to active-carbon bed in tank body.
7. method as claimed in claim 6, it is characterised in that before described step 3, carries out pure water backwash, hydrochloric acid backwash and pure water backwash again successively to active-carbon bed in tank body.
8. method as claimed in claim 6, it is characterised in that before described step 3, carries out pure water backwash to active-carbon bed in tank, adds regenerating oxidant afterwards.
9. method as claimed in claim 6, it is characterised in that before described step 3, in tank active-carbon bed carry out pure water backwash, hydrochloric acid backwash and pure water backwash again successively, add regenerating oxidant afterwards.
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| CN201610378996.9A CN105854857B (en) | 2016-05-31 | 2016-05-31 | A kind of active carbon electric heating regenerating equipment and its application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426431A (en) * | 2021-06-24 | 2021-09-24 | 杭州电子科技大学 | Low-voltage arc striking regeneration device and method for activated carbon |
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| JP2003144915A (en) * | 2001-11-07 | 2003-05-20 | Toho Kako Kensetsu Kk | Activated carbon fiber element and method for manufacturing the same |
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