CN201343479Y - Electroplating wastewater treatment device - Google Patents

Electroplating wastewater treatment device Download PDF

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Publication number
CN201343479Y
CN201343479Y CNU2009201363740U CN200920136374U CN201343479Y CN 201343479 Y CN201343479 Y CN 201343479Y CN U2009201363740 U CNU2009201363740 U CN U2009201363740U CN 200920136374 U CN200920136374 U CN 200920136374U CN 201343479 Y CN201343479 Y CN 201343479Y
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CN
China
Prior art keywords
water
tank
absorption
absorption swap
exchange
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Expired - Fee Related
Application number
CNU2009201363740U
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Chinese (zh)
Inventor
王俊川
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XIAMEN VISBE MEMBRANE TECHNOLOGY Co Ltd
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XIAMEN VISBE MEMBRANE TECHNOLOGY Co Ltd
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Priority to CNU2009201363740U priority Critical patent/CN201343479Y/en
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Publication of CN201343479Y publication Critical patent/CN201343479Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The utility model discloses an electroplating wastewater treatment device which comprises a contact tank, an adsorption and exchange tank and an ozone generator, wherein, the contact tank is provided with a water inlet opening and a water outlet opening, the adsorption and exchange tank is provided with a water inlet opening and a water outlet opening, the water inlet opening of the contact tank is connected with the wastewater to be treated, the water outlet opening of the contact tank is connected with the water inlet opening of the adsorption and exchange tank through a connecting pipeline, the ozone generator is connected with the contact tank, the adsorption and exchange tank is filled with composite materials with physical adsorption function and ion exchange function and biological films grown by cultivating are arranged on the surfaces of the composite materials. The utility model prolongs the service life of the adsorbing material and avoids the trouble of frequently replacing the adsorbing material.

Description

Electroplating wastewater processing equipment
Technical field
The utility model relates to water-treatment technology field, specifically is meant electroplating wastewater processing equipment.
Background technology
Plating is to utilize chemistry and electrochemical method to plate various metals at metal or at other material surface.Electroplating technology is widely used in industries such as machine manufacturing, light industry, electronics.The composition of electroplating wastewater is very complicated, removes to contain cyanogen (CN -) outside waste water and the acidic and alkaline waste water, heavy metal wastewater thereby is to electroplate the great waste water classification of industry potential hazard.Classify according to contained heavy metal element in the heavy metal wastewater thereby, generally can be divided into and contain chromium (Cr) waste water, nickeliferous (Ni) waste water, contain cadmium (Cd) waste water, cupric (Cu) waste water, contain zinc (Zn) waste water, contain gold (Au) waste water, argentiferous (Ag) waste water etc.
The improvement of electroplating wastewater at home and abroad generally comes into one's own, and develops multiple improvement technology, by with poisonous improvement be nontoxic, harmful be converted into harmless, reclaim the quantity discharged that heavy metal was eliminated and reduced in measures such as noble metal, water cycle use.Along with the fast development of electroplating industry and the raising day by day of environmental requirement, at present, electroplating wastewater is administered and has been begun to enter process for cleanly preparing, overall control and recycling economy integration stage, and resource recycling and closed cycle are the main flow directions of development.
It is the method for removing harmful ion in the waste water by means of the exchange ion in the ion-exchanger exchanges with the ion in the waste water that ion exchange method is handled electroplating wastewater.Ion exchange reaction all has three features: obey equivalent law, promptly exchange with equivalent; Be a kind of reversible reaction, follow the law of mass action; Exchanger has selectivity.Exchange ion elder generation and the big ion-exchange of exchange potential on the exchanger, when normal temperature and lower concentration, the positively charged ion valence mumber is higher, exchange potential is just bigger, and coion then ordination number is bigger, and exchange potential is bigger, when high density, said sequence is withdrawn to back burner, and mainly the size according to concentration puts in order.Along with the carrying out of ion exchange process, the exchange capacity of exchanger descends, and when arriving to a certain degree, need regenerate to exchanger, to recover its exchange capacity.Owing to will regenerate continually, thereby the main drawback of ion exchange method is technical process complexity, running cost height, complicated operation, thereby its processing power is subjected to bigger restriction.
The physical adsorption fado adopts gac, and after gac was added in the waste water, heavy metal ion was adsorbed in the space of gac into, thereby is separated.The method that adopts gac to carry out physical adsorption can be handled the low waste water of heavy metal ion content, but because the physical adsorption meeting reaches balance, and gac Adsorption of Heavy Metal Ions again just after the balance is like this with regard to sorbent materials such as gac that need be a large amount of.
Biological process adopts fungi or some algae, utilizes the effect between they and the heavy metal ion to remove heavy metal ion.The microbiological treatment of sewage is a kind of treatment process of utilizing the metabolic reaction of microorganism to carry out, and the purpose of biological treatment is to remove organism and holophytic nutrition thing, and removes colloidal solid by biofloculation, and dominant mechanism is microbial metabolism.Microorganism is a concentration of removing or remove low organic compound, mineral compound to the processing target of trade effluent.
Above-mentioned ion exchange method, physisorphtion and biological process all have its advantage and limitation.
The utility model content
Main purpose of the present utility model is to overcome the limitation of existing electroplating waste processing process, a kind of coupled ion exchange process, physisorphtion and biological process advantage is provided and reduces circumscribed separately electroplating waste processing process and equipment.
The utility model adopts following technical scheme:
Electroplating wastewater processing equipment, comprise contact jar, absorption swap tank and ozonizer, this contact jar is provided with water-in and water outlet, this absorption swap tank is provided with water-in and goes out water outlet, the water-in of this contact jar connects pending waste water, the water outlet of contact jar connects the water-in of absorption swap tank by connection line, ozonizer is connected with the contact jar, be filled with the matrix material with physical adsorption function and ion exchanging function in this absorption swap tank, this composite material surface has cultivates the microbial film that generates.
Aforementioned electric waste electroplating treatment facility, its absorption swap tank has two, each absorption swap tank also is provided with the regenerated liquid discharge outlet, also comprise a regenerating unit in addition, this regenerating unit is connected with the water-in of two absorption swap tanks respectively by pipeline, two absorption swap tank and contact tank connected pipeline on valve is housed respectively, on two absorption swap tanks and the pipeline that regenerating unit is connected valve is housed respectively also, the water outlet that goes out of two absorption swap tanks also is equipped with valve respectively, and the regenerated liquid discharge outlet of two absorption swap tanks also is equipped with valve respectively.
By above-mentioned to description of the present utility model as can be known, compare with prior art, the utlity model has following advantage: the utility model combines ion exchange method, physisorphtion and biological process, organism in the electroplating wastewater and heavy metal ion are by the matrix material physical adsorption, thereby organism is degraded by microorganisms after by physical adsorption and destroys adsorption equilibrium and make physical adsorption proceed, heavy metal ion enters composite inner in the internal diffusion mode after by physical adsorption, thereby and carry out ion-exchange with matrix material and destroy adsorption equilibrium physical adsorption is proceeded, as seen, the utility model has destroyed the adsorption equilibrium of setting up in the adsorption process by biological process and ion exchange method, thereby prolonged the time limit of service of sorbing material, avoided needing often to change the trouble of sorbing material.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.
With reference to Fig. 1, the electroplating wastewater processing equipment of present embodiment comprises contact jar 1, absorption swap tank 2, absorption swap tank 3, ozonizer 4 and regenerating unit 5.This contact jar 1 is provided with water-in and water outlet, this absorption swap tank 2,3 is respectively equipped with water-in, goes out water outlet and regenerated liquid discharge outlet, the water-in of contact jar 1 connects pending waste water, the water outlet of contact jar 1 connects the water-in of swap tank 2,3 respectively, ozonizer 4 is connected with contact jar 1, and regenerating unit 5 is connected with the water-in of this absorption swap tank 2,3 respectively.All be filled with the matrix material with physical adsorption function and ion exchanging function in this absorption swap tank 2,3, this composite material surface has cultivates the microbial film that generates.This matrix material can adopt two or three in hydroxyapatite, gac, the rectorite leng to be composited, and becomes particulate state.
On adsorbing swap tank 2,3 and contacting jar 1 pipeline that is connected valve K22, K32 are housed respectively, on absorption swap tank 2,3 and the pipeline that regenerating unit 5 is connected valve K21, K31 are housed respectively, the water outlet that goes out of absorption swap tank 2,3 is equipped with valve K23, K33 respectively, and the regenerated liquid discharge outlet of absorption swap tank 2,3 is equipped with valve K24, K34 respectively.
Adsorb swap tank 2 when adsorbing exchange, valve K22, K23 opens, K21, K24 closes, and the matrix materials that adsorb simultaneously in the swap tank 3 are regenerated, valve K31, K34 opens, K32, K33 closes; Switch with absorption swap tanks 3 the saturated back of matrix material in the absorption swap tank 2, this moment valve K22, K23 closes, K21, K24 opens, and the matrix material in the absorption swap tank 2 is regenerated, valve K31, and K34 closes, K32, K33 opens, and absorption swap tank 3 adsorbs exchange work.
When utilizing aforesaid device to handle electroplating wastewater, earlier electroplating wastewater is divided the matter shunting, nickel-plating rinsing waste water adopts the trough rim processing unit to reclaim nickel metal ion and pure water respectively, other waste water are respectively through chemical method shunting processing, through coagulating sedimentation, quartz sand filtration, filtering water outlet is handled through aforesaid device, realize the regeneration recycling of waste water again through the reverse osmosis membrane apparatus recovery system, the condensed water of reverse osmosis membrane system realizes that through removing organism and metal ion through aforesaid device once more behind the chemical coagulation and precipitation pollutent in the water reaches below the electroplating wastewater emission standard limit value.
The ozone that ozonizer 4 produces is transported to contact jar 1 and contacts with the water mixing, and the larger molecular organics in the water is degraded to small organic molecule, improves organic biodegradability.Water behind the catalytic oxidation enters absorption swap tank 2 or 3.
After water enters absorption swap tank 2 or 3, aqueous fluid with process that matrix material contacts in, pollutents such as the heavy metal ion in the fluid, organism, fluorine, cyanogen are delivered to the outside surface of matrix material by external diffusion mode (molecular diffusion and convection current diffusion) from the fluid theme.On the surface of matrix material, pollutent is attracted to the surface of matrix material because of physisorption.Under the degraded of the microorganism of composite material surface, the organism that is adsorbed on composite material surface is degraded to inorganicss such as water, carbonic acid gas.
Be adsorbed on the metal ion of composite material surface, enter granule interior by the micropore on the composite material granular, arrive the particulate internal surface in the mode of internal diffusion.At the internal surface of matrix material, metal ion is fixing because of the physisorption of matrix material is adsorbed, till adsorption equilibrium.At the internal surface of matrix material, the metal ion that is adsorbed reaches the purpose of removing pollutent because of the ion exchanging function of matrix material takes place to exchange mutually with the commutative factor of matrix material.
The organism that is adsorbed is constantly degraded under the action of microorganisms of composite material surface and is removed, destroyed the organic physical adsorption balance that matrix material is set up, thereby promote organism further to the matrix material enrichment, reach the purpose that reduces organic pollutant in the water.
The metal ion that is adsorbed carries out the ionic exchange between continuous under the effect of matrix material ion-exchange and matrix material, destroyed the physical adsorption balance of the metal ion of matrix material foundation, thereby promote metal ion further to the matrix material enrichment, reach the reduction underwater gold and belong to the ionic purpose.
Absorption swap tank 2,3 one is a usefulness fully, and after one of them absorption swap tank was saturated, water inlet switched to another absorption swap tank and handles, and the matrix material in the saturated absorption swap tank then carries out the reparation cultivation of activating and regenerating and microorganism by regeneration system rapidly.
Above-mentioned only is embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims (2)

1, electroplating wastewater processing equipment, it is characterized in that: comprise contact jar, absorption swap tank and ozonizer, this contact jar is provided with water-in and water outlet, this absorption swap tank is provided with water-in and goes out water outlet, the water-in of this contact jar connects pending waste water, the water outlet of contact jar connects the water-in of absorption swap tank by connection line, ozonizer is connected with the contact jar, be filled with the matrix material with physical adsorption function and ion exchanging function in this absorption swap tank, this composite material surface has cultivates the microbial film that generates.
2, electroplating wastewater processing equipment as claimed in claim 1, it is characterized in that: described absorption swap tank has two, each absorption swap tank also is provided with the regenerated liquid discharge outlet, also comprise a regenerating unit in addition, this regenerating unit is connected with the water-in of two absorption swap tanks respectively by pipeline, two absorption swap tank and contact tank connected pipeline on valve is housed respectively, on two absorption swap tanks and the pipeline that regenerating unit is connected valve is housed respectively also, the water outlet that goes out of two absorption swap tanks also is equipped with valve respectively, and the regenerated liquid discharge outlet of two absorption swap tanks also is equipped with valve respectively.
CNU2009201363740U 2009-01-13 2009-01-13 Electroplating wastewater treatment device Expired - Fee Related CN201343479Y (en)

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Application Number Priority Date Filing Date Title
CNU2009201363740U CN201343479Y (en) 2009-01-13 2009-01-13 Electroplating wastewater treatment device

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Application Number Priority Date Filing Date Title
CNU2009201363740U CN201343479Y (en) 2009-01-13 2009-01-13 Electroplating wastewater treatment device

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI458861B (en) * 2012-06-04 2014-11-01 Arps Inc Surface Treatment of Copper in Copper Process Cleaning Solution
TWI458536B (en) * 2012-06-04 2014-11-01 Arps Inc Surface Treatment Chemical Copper Process Cleaning Solution for Copper Recycling System
TWI639560B (en) * 2016-04-20 2018-11-01 夏夷虎 Auto-activated ion-exchange resin column system for precious metal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI458861B (en) * 2012-06-04 2014-11-01 Arps Inc Surface Treatment of Copper in Copper Process Cleaning Solution
TWI458536B (en) * 2012-06-04 2014-11-01 Arps Inc Surface Treatment Chemical Copper Process Cleaning Solution for Copper Recycling System
TWI639560B (en) * 2016-04-20 2018-11-01 夏夷虎 Auto-activated ion-exchange resin column system for precious metal

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