CN207391573U - The device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater - Google Patents
The device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater Download PDFInfo
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- CN207391573U CN207391573U CN201721216796.XU CN201721216796U CN207391573U CN 207391573 U CN207391573 U CN 207391573U CN 201721216796 U CN201721216796 U CN 201721216796U CN 207391573 U CN207391573 U CN 207391573U
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- electroplating wastewater
- exchange membrane
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Abstract
The utility model discloses the devices that various heavy in a kind of electroplating wastewater separates and recovers simultaneously, device includes the device housing of at least one processing unit room, anode reaction pond and cathode reaction pond are equipped in each processing element cell, anode plate is equipped in anode reaction pond, cathode plate is equipped in cathode reaction pond；It is equipped between anode plate and cathode plate and laminated diaphragm is formed by cation-exchange membrane and anion-exchange membrane, laminated diaphragm is formed with wastewater treatment passage, and device housing is equipped with electroplating wastewater import and electroplating wastewater exports；Device is furnished with DC power supply, and anode plate and cathode plate are correspondingly connected with the anode and cathode of DC power supply, metal recovery cell is formed between cation-exchange membrane and anion-exchange membrane.Its recovery method is heavy metal ion in the electroplating wastewater of waste water flowing treatment channel by every the method separated and recovered in the metal recovery room of formation in the form of metal or alkali compounds from electroplating wastewater.
Description
Technical field
The utility model is related to waste water environmental protection treatment technical fields, are returned more particularly, to various heavy in electroplating wastewater
The equipment of receipts, the device that various heavy separates and recovers simultaneously in specifically a kind of electroplating wastewater.
Background technology
China is plating big country, and closely related industry has automobile, equipment manufacturing, ship, logistics with Electroplating Operations, other
Such as steel, petrochemical industry, non-ferrous metal industry also have the association of countless ties with Electroplating Operations.The development of these industries, will band
The brand-new development of Electroplating Operations in close relations therewith is moved, at the same time, the discharge capacity of electroplating wastewater will be growing on and on.
The yield that pollutant is electroplated in electroplating wastewater is as shown in the table：
| Type | The yield of Pollutants in Wastewater |
| Brass plating | Waste water：Often plate 103m2Workpiece generates cupric 23kg, zinc 15kg in waste water |
| Chromium plating | Waste water：Often plate 103m2Workpiece generates 37kg containing Cr VI in waste water |
| Cadmium plating | Waste water：Often plate 103m2Workpiece generates 4kg containing cadmium in waste water |
| Lead plating | Waste water：Often plate 103m2Workpiece generates leaded 21kg, oily 1kg in waste water |
| Galvanized steel plain sheet | Waste water：Wastewater flow rate 5t/t workpiece, 0.5kg/t containing zinc, cyanide 0.02kg/t in waste water |
| Coating steel pipe | Waste water：Wastewater flow rate 2.7t/t workpiece, 0.34kg/t containing zinc in waste water |
| Cyaniding is handled | Waste water：The 95% of cyanide dosage is discharged in waste water |
Existing 15000 plating factory of China at present, hundred million m of 5000 a plurality of production lines and 2.5-32Electroplate area production energy
Power.400,000,000 tons of heavy metal-containing waste waters, 50000 tons of solid waste and 30,000,000 m are about generated every year2Sour gas, along with China gives up
Object processing basis is poor, and environmental aspect makes people worried.The metals such as the annual consumption copper of China's electroplating industry production, zinc, nickel are at 70,000 tons
More than, year consumption 20,000 tons of Cymag or more, 3.5 ten thousand tons of chromic anhybride of consumption or more, 400,000 tons of industrial chemicals such as consumption acids, alkali with
On.Thus, the recycle and reuse of the processing of electroplating wastewater and wherein heavy metal is extremely urgent！
The processing method of electroplating wastewater mainly has at present：Chemical precipitation method, flocculent precipitation, ion-exchange, electrolysis,
Membrane separation process, bioanalysis.By a large amount of it was verified that Treatment of Copper and the electroplating wastewater most efficient method of nickel are exactly that chemistry is heavy
Shallow lake method, the treatable water of the method is larger, but used pharmaceutical quantities are also bigger than normal, and processing procedure is cumbersome, same with this
When, we also need to adjust pH value often, and the heavy metal recycling in waste liquid is difficult, to largely efficiently recycle
Heavy metal also needs to further take new technical solution.
Existing Patent No. CN201610047262, entitled " a kind of electroplated heavy metals retracting device " disclose a kind of electricity
The device of heavy metal recovery is plated, which includes rack, and the top of rack is equipped with several electrolytic cells, and the inner wall of electrolytic cell is equipped with
Cathode plate is equipped with anode plate in electrolytic cell, by electrochemical principle Waste water concentrating to a certain extent, then by electrolysis by metal
It is precipitated.Electrolysis is coordinated good quality sensor, and using international advanced ZGBT modules, is formed using the micro-chip processor of independent research
A set of controling adjustment device.Although this device large specific surface area, non-aging, utility time is long, also can effectively reduce in waste water
The concentration of heavy metal, but its process is relatively cumbersome, cost is too high, and is mixing after heavy metal recovery, need to also be into one
Step separation.
The content of the invention
Technical problem to be solved in the utility model is that in view of the above-mentioned state of the art, and it is useless to provide a kind of plating
The device that various heavy separates and recovers simultaneously in water.The apparatus structure is simple, design is reasonable, can effectively will be in electroplating wastewater
Various heavy is separated and realized and is separately recovered simultaneously, and separation and recovery method technique is advanced, and the rate of recovery is high and easy to operate.
Technical solution is used by the utility model solves above-mentioned technical problem：Various heavy in a kind of electroplating wastewater
The device of separation and recovery simultaneously, or perhaps the device that different heavy metals separate and recover simultaneously in a kind of electroplating wastewater；The device
Including being at least molded the device housing there are one processing unit room, it is equipped in each processing element cell and utilizes electrochemical treatments
The reaction tank that mode separates and recovers the heavy metal in electroplating wastewater；Reaction tank include using the middle separated time of the processing unit room as pair
Claim the anode reaction pond of the symmetrical formation of axis and cathode reaction pond, be equipped with anode plate in anode reaction pond, in cathode reaction pond
Equipped with cathode plate；Be equipped with to make between anode plate and cathode plate various heavy simultaneously the multilayer that is precipitated on its corresponding membrane every
Film, the cation-exchange membrane and anion-exchange membrane that laminated diaphragm is set by a plurality of alternate intervals form, the laminated diaphragm
The wastewater treatment passage that can flow through electroplating wastewater is centrally formed with, connection wastewater treatment passage is correspondingly provided in device housing
Electroplating wastewater import and electroplating wastewater outlet；Device is also equipped with DC power supply, and anode plate is connected with the anode of DC power supply, cloudy
Pole plate is connected with the cathode of DC power supply；Gold is each formed between spaced cation-exchange membrane and anion-exchange membrane
Belong to recovery room, in the state of DC power supply connection, the heavy metal ion in the electroplating wastewater of waste water flowing treatment channel is in quilt
Every being separated and recovered in the metal recovery room of formation in the form of metal or alkali compounds from electroplating wastewater.
To optimize above-mentioned technical proposal, the measure taken further includes：
Above-mentioned laminated diaphragm ecto-entad in anode reaction pond includes the first cation-exchange membrane and first the moon successively
Amberplex；The laminated diaphragm in cathode reaction pond ecto-entad successively include the second anion-exchange membrane and second sun from
Proton exchange；First anion-exchange membrane and the second cation-exchange membrane are set by symmetrical axial symmetry of the middle separated time of processing unit room
It puts, wastewater treatment passage is made of the passage between the first anion-exchange membrane and the second cation-exchange membrane.
Above-mentioned electroplating wastewater import is connected with to supply through water inlet pipe the waste water pump of electroplating wastewater, the waste water pump into
The mouth of a river is connected through drinking-water pipe with electroplating wastewater pond；Electroplating wastewater outlet is through drainpipe connection electroplating wastewater pond；In device housing
Equipped with the outlet pipe for discharging the separation waste water after separating beavy metal in metal recovery cell.
The DC voltage that each metal recovery cell is loaded in above-mentioned reaction tank is 5V to 20V.
Above-mentioned electroplating wastewater is the mixed electroplating wastewater containing various heavy, the huge sum of money contained in mixed electroplating wastewater
Belong to copper ion to be received by separation in the form of metal in metal recovery room；The heavy metal nickel ion contained in mixed electroplating wastewater exists
It is separated and recovered in metal recovery room in the form of metal and/or alkali compounds；The heavy metal contained in mixed electroplating wastewater
Chromium ion is separated and recovered in metal recovery room in the form of alkali compounds.
Above-mentioned device housing is made of foamed resin material, and two to ten two processing units are formed in the device housing
Room.
Compared with prior art, the device of the utility model is equipped with to make an a variety of huge sum of moneys between anode plate and cathode plate
Belong to, even if the laminated diaphragm that different heavy metals is precipitated on different films simultaneously, the laminated diaphragm are moved according to each metal ion
The difference of dynamic speed and the different settings that environment is precipitated, the cation-exchange membrane and the moon set including a plurality of alternate intervals
Amberplex, so as to realize different heavy metals while be precipitated on different films.The recovery method of the utility model is
By every the gold for separating and recovering metal in the metal recovery room of formation from electroplating wastewater in the form of metal or alkali compounds
Belong to absorption method.
The present apparatus compensates for the shortcomings that previous electroplating wastewater processing unification, and the heavy metal in mixed electroplating wastewater can exist
It is separated in reaction tank, then achievees the effect that be separately recovered.The treatment effect of electroplating wastewater can be effectively improved, reduces equipment
Cost of investment.
Description of the drawings
Fig. 1 is the operation principle schematic diagram of the utility model.
Specific embodiment
The embodiment of the utility model is described in further detail below in conjunction with attached drawing.
Fig. 1 is the structure diagram of the utility model embodiment.
Reference numeral therein is：Electroplating wastewater import A, electroplating wastewater outlet B, device housing 1, anode reaction pond 1a,
Cathode reaction pond 1b, anode plate 2, cathode plate 3, wastewater treatment passage 4a, metal recovery cell 4b, the first cation-exchange membrane 41,
First anion-exchange membrane 42, the second cation-exchange membrane 43, the second anion-exchange membrane 44, DC power supply 5, waste water pump 6, electricity
Waste electroplating pond 7, outlet pipe 8.
Fig. 1 is the structure diagram of the utility model, as shown in the figure, the utility model discloses more in a kind of electroplating wastewater
The device that heavy metal species separate and recover simultaneously, the denomination of invention of the utility model can also be revised as " different in a kind of electroplating wastewater
The device that heavy metal separates and recovers simultaneously ", the present apparatus includes at least shaping, and there are one the device housing 1 of processing unit room, devices
Outline border 1 is made by foamed resin material and is molded, which is molded multiple processing unit rooms, multiple processing unit rooms
It is sequentially molded in device housing 1, is arranged when processing unit room is two or three in a line, processing unit room by ranks arrangement
Most preferably even numbers can be four, six, eight, ten, 12, until n, n is the number that can be divided exactly by 2 more than 12.
It is equipped in each processing element cell of the utility model and is divided the heavy metal in electroplating wastewater using the mode of electrochemical treatments
Reaction tank from recycling；The reaction tank includes having anode reaction by the symmetrical formation of symmetry axis of the middle separated time of processing unit room
Pond 1a and cathode reaction pond 1b, wherein, anode plate 2 is equipped in the 1a of anode reaction pond, cathode plate 3 is equipped in the 1b of cathode reaction pond；
Anode plate 2 and cathode plate 3 are equally symmetrical arranged using the middle separated time of processing unit room as symmetry axis, positioned at anode plate 2 and cathode
Between plate 3, equipped with for making the laminated diaphragm that various heavy is precipitated on its corresponding membrane simultaneously, that is, being equipped with makes different heavy metals
The laminated diaphragm being precipitated simultaneously on different films, the laminated diaphragm described in the utility model are set by multiple membranes by different levels
It puts to be formed, specifically says it is and be made of a plurality of alternatings and spaced cation-exchange membrane and anion-exchange membrane, it should
The wastewater treatment passage 4a for being centrally formed with to flow through electroplating wastewater of laminated diaphragm, corresponds in device housing 1 at waste water
At the both ends for managing passage 4a, then it is correspondingly provided with to connect the electroplating wastewater import A and electroplating wastewater of wastewater treatment passage 4a
Export B.The device of the utility model is furnished with DC power supply 5, and anode plate 2 is connected with the anode of DC power supply 5, cathode plate 3 and
The cathode of DC power supply 5 is connected；Metal is each formed between spaced cation-exchange membrane and anion-exchange membrane to return
Room 4b is received, in a state that the anode plate 2 of device connects DC power supply energization with cathode plate 3, flows through the wastewater treatment passage
Heavy metal ion in the electroplating wastewater of 4a by every in the metal recovery cell 4b of formation in the form of metal or alkali compounds
It is separated and recovered from electroplating wastewater.
The present apparatus compensates for the shortcomings that previous electroplating wastewater processing unification, and the electroplating wastewater described in the utility model is to contain
There are many mixed electroplating wastewaters of heavy metal, can the heavy metal in mixed electroplating wastewater be carried out at the same time separation in reaction tank,
Then achieve the effect that be separately recovered.The heavy metal copper ion contained in the present apparatus in mixed electroplating wastewater is in metal recovery cell
It is interior to be received in the form of metal by separation；It can realize the recycling of elemental copper.In the case of aqueous solution, apply high voltage when, with
Ammonia nitrogen is as catalyst, moreover it is possible to which forming aqueous electron etc. has the substance of oxidisability.
The heavy metal nickel ion contained in the present apparatus in mixed electroplating wastewater is in metal recovery room with metal and/or alkali
The form of property compound is separated and recovered；The heavy metal chromium ion contained in the present apparatus in mixed electroplating wastewater is in metal recovery cell
It is interior to be separated and recovered in the form of alkali compounds.
The utility model is dropped the proton concentration separated by membrane in the metal recovery room formed by electrodialytic method
Low, metal ion is separated and recovered in the form of metal simple-substance or alkali compounds from electroplating wastewater.
In embodiment, it can be seen by Fig. 1, the laminated diaphragm of the utility model is in the 1a of anode reaction pond and cathode reaction pond
It is symmetric in 1b, the laminated diaphragm in the 1a of anode reaction pond includes the first cation exchange successively by outer layers towards inner layers
41 and first anion-exchange membrane 42 of film；Laminated diaphragm in the 1b of cathode reaction pond includes second successively by outer layers towards inner layers
44 and second cation-exchange membrane 43 of anion-exchange membrane；First anion-exchange membrane 42 and the second cation-exchange membrane 43, with
And first cation-exchange membrane 41 and the second anion-exchange membrane 44 set by symmetrical axial symmetry of the middle separated time of processing unit room
It puts, above-mentioned wastewater treatment passage 4a is by the passage structure between the first anion-exchange membrane 42 and the second cation-exchange membrane 43
Into.
In embodiment, the electroplating wastewater import A of the utility model is connected with to supply the useless of electroplating wastewater through water inlet pipe
Water pump 6, the water inlet of the waste water pump 6 are connected through drinking-water pipe with electroplating wastewater pond 7；Electroplating wastewater outlet B is connected through drainpipe
Electroplating wastewater pond 7；Electroplating wastewater in electroplating wastewater pond 7 also connects the plating drainpipe of electroplating workshop.Device housing 1 is equipped with
By the outlet pipe 8 of the separation waste water discharge after separating beavy metal in metal recovery cell 4b.
The DC voltage that each metal recovery cell 4a in the utility model device in each reaction tank is loaded for 5V extremely
20V.The utility model separates to form metal recovery cell between anode plate 2 and cathode plate 3 using laminated diaphragm, in each metal
The DC voltage that recovery room is loaded is more than 5V below 20V.When the stability constant for the complex compound that metal and complexing agent are formed
For 5~7 power magnitudes, for example, the equilibrium potential of 1 power stability constant that calculates of Nernst formula be 1 valency, single electron reaction
When for 60mv, more than 450mV voltage conditions under, the separation of complex compound can realize.Complex compound caused by Ni ions and EDTA
The stability constant of Ni etylenediaminetetracarbonate in the case of neutral solution for 10 power magnitudes, pH1~
Under 3 acid condition, the stability constant of these metal complexes be several powers magnitude, voltage for several volts condition with regard to enough
.
The method that various heavy separates and recovers simultaneously in a kind of electroplating wastewater of the utility model, or perhaps a kind of plating
The method that different heavy metals separate and recover simultaneously in waste water, this method is to make to flow through device multilayer by the way of electrochemical treatments
The electroplating wastewater of wastewater treatment passage 4a in membrane, in laminated diaphragm by every in the metal recovery cell 4b of formation with metal or alkali
The form of property compound separates and recovers the metal recovery method of metal from electroplating wastewater.
The proton concentration of electroplating wastewater in metal recovery cell 4b is reduced by electrodialytic method using electrochemical treatments,
The metal in electroplating wastewater is made to be separated and recovered in the form of metal simple-substance or alkali compounds from the waste liquid containing metal.
Device is in the electroplating wastewater of Treatment of Copper ion, the recycling of metal recovery cell 4b interior energies realization elemental copper；
In the case of aqueous solution, apply high voltage when, using ammonia nitrogen as catalyst, can be formed aqueous electron with oxidisability substance.
When the DC voltage that each metal recovery cell of progress electrochemical treatments is loaded is more than 5V below 20V, to
It will stablize and the separation of heavy metal ions in difficult complexing heavy metal be precipitated, arrived in processing unit room or by laminated diaphragm
It discharges from processing unit room in adjacent processing unit room and in a manner of suspension, is returned in the form of salt based compound
It receives.
Various heavy can simultaneously be separated, recycled by the device of the utility model, simple in structure, practical and convenient, returned
Time receiving, electroplating wastewater pass through wastewater treatment passage 4a, can be automatically not by electrolysis and precipitation process, different types of heavy metal
It is to be precipitated in metal recovery room to be combined with film in formed space, same so as to reach different heavy metals in mixing electroplating effluent
When separation, recycling purpose.
Preferred embodiment for the utility model and design drawings above, although the utility model is by reference to preferred
Embodiment be shown and described, still, those skilled in the art it is to be appreciated that claims scope
It is interior, various variation in form and details can be made.
Claims (6)
1. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater, the device is included there are one at least shapings
The device housing (1) of processing unit room, it is characterized in that：It is equipped in each processing unit room and utilizes electrochemical treatments
The reaction tank that mode separates and recovers the heavy metal in electroplating wastewater；The reaction tank is included in the processing unit room points
Line is the anode reaction pond (1a) of the symmetrical formation of symmetry axis and cathode reaction pond (1b), in the anode reaction pond (1a)
Equipped with anode plate (2), cathode plate (3) is equipped in the cathode reaction pond (1b)；The anode plate (2) and cathode plate (3)
Between be equipped with to make the various heavy laminated diaphragm that is precipitated on its corresponding membrane simultaneously, the laminated diaphragm is by a plurality of
Cation-exchange membrane and the anion-exchange membrane composition that alternate intervals are set, being centrally formed with of the laminated diaphragm can make plating give up
The wastewater treatment passage (4a) that water flows through is correspondingly provided with the electricity of connection wastewater treatment passage (4a) in the device housing (1)
Waste electroplating import (A) and electroplating wastewater outlet (B)；The device is furnished with DC power supply (5), the anode plate (2) with it is straight
The anode in galvanic electricity source (5) is connected, and the cathode plate (3) is connected with the cathode of DC power supply (5)；It is described spaced
Metal recovery cell (4b) is each formed between cation-exchange membrane and anion-exchange membrane, in the state that the device is powered
Under, the heavy metal ion in the electroplating wastewater of the wastewater treatment passage (4a) is flowed through by the metal recovery cell (4b) every formation
It is interior to be separated and recovered in the form of metal or alkali compounds from electroplating wastewater.
2. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater according to claim 1, it is characterized in that：
Laminated diaphragm ecto-entad in anode reaction pond (1a) includes the first cation-exchange membrane (41) and first the moon successively
Amberplex (42)；Laminated diaphragm ecto-entad in cathode reaction pond (1b) includes the second anion-exchange membrane successively
(44) and the second cation-exchange membrane (43)；First anion-exchange membrane (42) and the second cation-exchange membrane (43) with
The middle separated time of processing unit room is symmetrical arranged for symmetry axis, and the wastewater treatment passage (4a) is by the first anion-exchange membrane
(42) passage between the second cation-exchange membrane (43) is formed.
3. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater according to claim 2, it is characterized in that：
The electroplating wastewater import (A) is connected with to supply the waste water pump (6) of electroplating wastewater through water inlet pipe, the waste water pump (6)
Water inlet is connected through drinking-water pipe with electroplating wastewater pond (7)；The electroplating wastewater outlet (B) connects electroplating wastewater through drainpipe
Pond (7)；The device housing (1) is equipped with to be gone out what the separation waste water after separating beavy metal in metal recovery cell (4b) was discharged
Water pipe (8).
4. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater according to claim 3, it is characterized in that：
The DC voltage that each metal recovery cell (4b) is loaded in the reaction tank is 5V to 20V.
5. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater according to claim 4, it is characterized in that：
The electroplating wastewater is the mixed electroplating wastewater containing various heavy, the heavy metal contained in the mixed electroplating wastewater
Copper ion is received in metal recovery room in the form of metal by separation；The heavy metal nickel contained in the mixed electroplating wastewater from
Son is separated and recovered in metal recovery room in the form of metal and/or alkali compounds；Contain in the mixed electroplating wastewater
Some heavy metal chromium ions are separated and recovered in metal recovery room in the form of alkali compounds.
6. the device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater according to claim 5, it is characterized in that：
The device housing (1) is made of foamed resin material, and two to ten two processing units are formed in the device housing (1)
Room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216796.XU CN207391573U (en) | 2017-09-21 | 2017-09-21 | The device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216796.XU CN207391573U (en) | 2017-09-21 | 2017-09-21 | The device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207391573U true CN207391573U (en) | 2018-05-22 |
Family
ID=62404742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721216796.XU Withdrawn - After Issue CN207391573U (en) | 2017-09-21 | 2017-09-21 | The device that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207391573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447233A (en) * | 2017-09-21 | 2017-12-08 | 宁波市海智材料产业创新研究院 | The device and method that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
-
2017
- 2017-09-21 CN CN201721216796.XU patent/CN207391573U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447233A (en) * | 2017-09-21 | 2017-12-08 | 宁波市海智材料产业创新研究院 | The device and method that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
| CN107447233B (en) * | 2017-09-21 | 2023-06-09 | 宁波市海智材料产业创新研究院 | Device and method for simultaneously separating and recovering multiple heavy metals in electroplating wastewater |
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Granted publication date: 20180522 Effective date of abandoning: 20230609 |