CN108862489A - One kind continuously adjusting electrode spacing formula desalting technology and reaction module for Electro Sorb-to be regenerated - Google Patents
One kind continuously adjusting electrode spacing formula desalting technology and reaction module for Electro Sorb-to be regenerated Download PDFInfo
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- CN108862489A CN108862489A CN201810723530.7A CN201810723530A CN108862489A CN 108862489 A CN108862489 A CN 108862489A CN 201810723530 A CN201810723530 A CN 201810723530A CN 108862489 A CN108862489 A CN 108862489A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention discloses one kind to continuously adjust electrode spacing formula desalting technology and reaction module for Electro Sorb-to be regenerated.Reactor includes continuously adjusting electrode spacing formula desalting reactor cabinet 1, raw water water tank 2, clear water tank 3, final concentrated water water tank 4, power supply 5, water pump 6, conductivity meter 7,8.Using brine waste of the present invention processing based on draining outside landfill leachate, salt rejection rate can reach 42.6%, Cl‑Removal rate is 73.3%, and desalination speed is 90mg/ (Lh), and electrode regeneration rate is 97.3%, producing water ratio 91.7%.The present invention continuously adjusts the continuous Electro Sorb-regeneration of electrode spacing formula using movable slot control; have the characteristics that easy to operate, current density is stable, salt rejection rate is high, desalting efficiency is high, electrode regeneration rate is high, scale formation does not occur, producing water ratio is high, electrode life is long; it realizes hyposaline industrial wastewater and desalinates and carry out regeneration, have broad prospects in environmental protection brine waste process field.
Description
Technical field
The invention belongs to environmental protection brine waste process fields, and in particular to a kind of use of continuously adjustable electrode spacing
In Electro Sorb-regeneration desalination technology and reaction module, it is mainly used in the hyposaline work for being unable to reach regeneration standard
Industry waste water.
Background technique
Freshwater resources are in short supply to have become extremely urgent global problem, and the circular regeneration for industrial wastewater is current
The task of top priority.To drain the hyposaline industrial wastewater for representative outside landfill leachate, usual conductivity is in 1000~4000 μ S/
Cm, because salt content is difficult to further decrease cannot reuse up to standard.The novel brine waste processing side to grow up in recent years
Method --- Electro Sorb desalting technology has without secondary pollution, of less demanding to raw water, operation and easy maintenance, operating cost low
The advantages that.Its principle is to apply voltage or electric current between the electrodes, charged particle point in water when raw water flows between positive and negative electrode
It not to the electrode transfer of oppositely charged, by electrode adsorption and is stored in electric double layer, realizes the separation with water, faded out
Water.
For industrial hyposaline waste water, since its initial conductivity is not high and still declining during constant pressure Electro Sorb,
The current density between circuit for causing water flow, electrode and power supply to be formed also constantly declines, and causes quickly due to current density
Too small arrival absorption platform.In addition, leading to electrode again in the ion second adsorption to opposite pole plate of electrode regeneration stage desorption
Raw rate is lower and Electro Sorb-regeneration desalination processes in insoluble problem, electric adsorption desalting device for example military good fortune in part is flat
The CN104817143A write such as strong etc. the Chinese patent CN107935132A, Tang's heart write has been all made of anion and cation exchange membrane
The second adsorption of regeneration stage is prevented, but increases economic cost, also increases resistance to water-flow to a certain degree.
In terms of comprehensive, Electro Sorb desalination has boundless application prospect, but traditional Electro Sorb desalting technology is limited by
There is the problems such as reaching absorption platform quickly, electrode regeneration rate is low in the conditions such as fixed electrode spacing and voltage, need existing
On the basis of optimize and improve.
Summary of the invention
For deficiency present in technical background, that the present invention provides a kind of salt rejection rates is higher, regeneration rate is high, production and behaviour
Work simply continuously adjusts electrode spacing formula desalting technology and equipment, can be used for drain outside landfill leachate and contain for the low of representative
Salt industrial waste water carries out continuous adsorption-regeneration reaction, and the desalination water outlet of acquisition can carry out industrial regeneration reuse.
Provided by the invention continuously adjusts electrode spacing formula desalination reaction module, including continuously adjusts electrode spacing formula electricity
Adsorption desalination device box 1, raw water water tank 2, clear water tank 3, final concentrated water water tank 4, power supply 5, water pump 6, conductivity meter 7,8
(its operation schematic diagram is as shown in Figure 3).It is characterized in that the following：
1) raw water inlet, a top water purification water outlet, a bottom concentrated water water outlet are provided on the cabinet
Mouthful, intake-outlet is respectively provided with two-port valve or triple valve, and the valve controls water outlet flow direction, separation in adsorption-regeneration different phase
Different salinity water outlets.
2) a plurality of serrated slot is arranged in parallel perpendicular to the water inlet direction in the cabinet two sides, and every strap saw space width is
1-20mm for fixed movable slot, and adjusts electrode spacing.
3) multiple detachable movable slots, the activity slot front setting windowing, windowing back are set in the cabinet
Face is all closed, and socket is arranged in top, and Electro Sorb pole plate is fixed by the socket insertion activity slot.
4) all prominent handles of slot slot side setting equal length being connected with power cathode in the movable slot,
All handles are equidistant to be connected, and a pull rod is arranged in outside.Pull rod can push or pull on simultaneously it is all be connected with power cathode insert
Slot is mobile perpendicular to water inlet direction, changes each pair of electrode spacing.
5) power failure walkthrough-energization absorption-stage of the short circuit standing-regeneration of falling pole 4, the fortune are carried out continuously in the cycle of operation
The raw water inlet continuum micromeehanics in the row period；The power failure walkthrough stage is not discharged, water purification water outlet described in energization absorption phase
Water outlet, water outlet enter the clear water tank；It is shorted the water outlet of concentrated water water outlet described in the standing-regeneration stage of falling pole, water outlet enters institute
It states raw water water tank to carry out the cycle of operation next time, water outlet enters the final concentrated water water tank after every 4 cycles of operation.All stages
The flow direction of corresponding intake-outlet is controlled by the valve.
6) power failure walkthrough stage and short circuit standing stage no power, the adjacent institute of energization absorption phase in the cycle of operation
It states electrode to be connected with power positive cathode respectively, being shorted the standing stage is shorted the power positive cathode, and the regeneration stage of falling pole is by institute
State power positive cathode reversal connection.
7) energization absorption phase in the cycle of operation, the every 10~15min control of the pull rod are all with power cathode phase
Connect slot to the mobile lattice serrated slot distance in the slot direction that is connected with positive pole；The regeneration stage of falling pole in the cycle of operation,
All slots that are connected with power cathode of the every 5~10min control of pull rod are mobile to the slot opposite direction that is connected with positive pole
One lattice serrated slot distance.
Electrode spacing formula Electro Sorb-regenerated Electro Sorb desalination is continuously adjusted compared with prior art, the present invention providing
Technology, and the Electro Sorb desalination module based on the technology：
1) electrode spacing is reduced immediately in energization absorption phase, reduce ion in constant pressure and the reduction of raw water conductivity
The mass transfer distance between pole plate maintains stable higher current density, ensure that stable relatively equipment with high desalinization；
2) increase electrode spacing immediately in the regeneration stage of falling pole, increase ion mass transfer distance between pole plate, reduce electrode again
The second adsorption occurred during raw, improves electrode regeneration rate.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of movable slot and electrode in electric adsorption desalting device.
Fig. 2 is the movable slot pull rod control schematic diagram being connected with power cathode.
Fig. 3 is Electro Sorb desalination reaction module operation schematic diagram.
Specific embodiment
1, the 2 pair of invention of following combination attached drawings is described further.Experimental method used in following embodiments is such as without spy
Different explanation, is conventional method.Material used in following embodiments, reagent etc., unless otherwise specified, commercially
It obtains.
Embodiment 1, desalter
The desalting reactor includes electric adsorption desalting device cabinet 1, raw water water tank 2, clear water tank 3, final concentrated water water tank
4, power supply 5, water pump 6, conductivity meter 7,8：
Wherein, power supply 5 is connected with electric adsorption desalting device cabinet 1 by conducting wire, constitutes circuit.Power supply 5 be voltage 0~
Adjustable DC power supply within the scope of 1.5V.Water pump 6 is the water inlet adjustable peristaltic pump of 0~40mL/min of flow velocity.Conductivity meter 7,8 is
Identical measurement range is the conductivity meter of 0~5000 μ S/cm.Electric adsorption desalting device cabinet includes 6 pairs of electrode plates, electrode plate
It is staggered relatively and form the flat pole in baffling channel for anode and cathode；Constitute electrode plate material include charcoal felt and
The metal of aluminium alloy and titanium alloy one of which.
Embodiment 2, Electro Sorb-regeneration
Electric adsorption desalting device cabinet 1 in embodiment 1 is connected with power supply 5 by conducting wire and is connect in energization absorption phase
Energization source is 3200 ± 100 μ S/cm, Cl to conductivity-Concentration is to drain to be taken off outside the landfill leachate of 560 ± 20 μ S/cm
Salt treatment, adsorption desalination condition are as shown in table 1.
1 Electro Sorb of table-regeneration treatment condition
After completing desalination, salt rejection rate 42.6%, Cl-Removal rate is 66.7%, Ca2+Removal rate is 80.2%, Mg2+Removal
Rate is 73.3%, and desalination speed is 90mg/ (Lh), and current density is stablized in 2.5~3.0mA/cm in desalination processes2.It completes
After electrode regeneration, electrode regeneration rate is 97.3%, and producing water ratio is 91.7% after 4 cycles of operation.Rear pole plate is run multiple times not send out
Raw fouling and clast obscission, electrode life are long.
Result of implementation shows：It is disclosed by the invention to continuously adjust electrode spacing formula desalting technology and Electro Sorb-regeneration is anti-
Module is answered, stable current density is provided in absorption phase, salt rejection rate is high, desalting efficiency is high；In regeneration stage electrode regeneration
Rate is high, scale formation does not occur；It is easy to operate during multiple continuous adsorption-regeneration, producing water ratio is high, electrode life is long,
There is good prospect in terms of handling hyposaline industrial wastewater and regeneration.
Above-described embodiment should widely understand in claim limited range, therefore fall into the equivalent model of claim
Variation in enclosing should be covered by the following claims.The above is presently preferred embodiments of the present invention, not to limit this hair
Bright, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention
Protection scope within.
Claims (7)
1. one kind is used for, Electro Sorb-is regenerated to continuously adjust electrode spacing formula desalting technology and reaction module, including continuously adjusts
Electrode spacing formula electric adsorption desalting device cabinet, raw water water tank, clear water tank, final concentrated water water tank, power supply, water pump, the case
It is provided with a water inlet on body, two water outlets can accommodate 3~12 pairs of electrodes in the cabinet, the electrode runs parallel setting,
And the adjacent electrode is connected with power positive cathode respectively.
2. electric adsorption desalting device cabinet according to claim 1, it is characterised in that：The water inlet is connected with water pump,
Being located at cabinet higher position in the water outlet is water purification water outlet, and two-port valve is arranged, is connected with clear water tank, lower position
For concentrated water water outlet, triple valve is set, is connected with raw water water tank and final concentrated water water tank, the water inlet the operation phase always
Water check valve is closed, the water purification water outlet and concentrated water water outlet replace when the reactor is in absorption phase and desorption stage
Close water check valve.
3. electric adsorption desalting device cabinet according to claim 1, it is characterised in that：The cabinet two sides are perpendicular to described
A plurality of serrated slot is arranged in parallel in water inlet direction, and every strap saw space width is 1-20mm, for fixed movable slot, and adjusts electricity
Interpolar away from.
4. electric adsorption desalting device cabinet according to claim 1, it is characterised in that：It is arranged in the cabinet multiple removable
Formula activity slot, the activity slot front setting windowing are unloaded, the windowing back side is all closed, and socket is arranged in top, and electricity is inhaled
Attached pole plate is fixed by the socket insertion activity slot.
5. activity slot according to claim 4, it is characterised in that：It is all in the activity slot to be connected with power cathode
The prominent handle of slot slot side setting equal length, all handles are equidistant to be connected, and a pull rod is arranged in outside.
6. according to claim 1 continuously adjust electrode spacing formula desalting technology, it is characterised in that：The reactor is being transported
Power failure walkthrough-energization absorption-stage of the short circuit standing-regeneration of falling pole 4 is carried out continuously in the row period, within the cycle of operation it is described into
Mouth of a river continuum micromeehanics, power failure walkthrough stage are not discharged, and the water outlet of water purification water outlet described in energization absorption phase, water outlet enters described net
Water tank；It is shorted the water outlet of concentrated water water outlet described in the standing-regeneration stage of falling pole, water outlet enters the raw water water tank and carries out next time
The 4th regeneration stage of the falling pole water outlet of the cycle of operation, every 4 cycles of operation enter the final concentrated water water tank.
7. according to claim 1 continuously adjust electrode spacing formula desalting technology, it is characterised in that：In the cycle of operation
The power failure walkthrough stage and be shorted standing stage no power, the adjacent electrode of energization absorption phase respectively with power positive cathode phase
Even, the power positive cathode is shorted by the short circuit standing stage, and the power positive cathode is reversely connected by the regeneration stage of falling pole；The operation
Energization absorption phase in period, the every 10~15min control of the pull rod is all be connected with power cathode slot to positive pole
Be connected the mobile lattice serrated slot distance in slot direction, the regeneration stage of falling pole in the cycle of operation, the every 5~10min of pull rod
It controls all slots that are connected with power cathode and moves a lattice serrated slot distance to the slot opposite direction that is connected with positive pole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810723530.7A CN108862489B (en) | 2018-07-04 | 2018-07-04 | Continuous electrode spacing adjusting type desalting technology for electric adsorption-regeneration and reaction module |
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| CN201810723530.7A CN108862489B (en) | 2018-07-04 | 2018-07-04 | Continuous electrode spacing adjusting type desalting technology for electric adsorption-regeneration and reaction module |
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| CN108862489A true CN108862489A (en) | 2018-11-23 |
| CN108862489B CN108862489B (en) | 2021-07-16 |
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Cited By (4)
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| CN109824127A (en) * | 2019-02-22 | 2019-05-31 | 中国石油大学(华东) | The system and its application method of Electro Sorb desalination are carried out using photovoltaic energy |
| CN110496819A (en) * | 2019-08-21 | 2019-11-26 | 上海紫淦机电科技有限公司 | A kind of cleaning method for water catalyst generator |
| CN113045078A (en) * | 2021-03-29 | 2021-06-29 | 苏州爱科罗环境科技有限公司 | Photocatalysis and electro-adsorption desalination integrated equipment for wastewater treatment |
| CN113105036A (en) * | 2021-06-11 | 2021-07-13 | 中科嘉辞(昆山)环保科技有限公司 | High-salinity water body desalting system based on electric adsorption technology |
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| CN113045078A (en) * | 2021-03-29 | 2021-06-29 | 苏州爱科罗环境科技有限公司 | Photocatalysis and electro-adsorption desalination integrated equipment for wastewater treatment |
| CN113105036A (en) * | 2021-06-11 | 2021-07-13 | 中科嘉辞(昆山)环保科技有限公司 | High-salinity water body desalting system based on electric adsorption technology |
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