CN207468386U - A kind of zero-discharge treatment system of mixed electroplating wastewater - Google Patents
A kind of zero-discharge treatment system of mixed electroplating wastewater Download PDFInfo
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- CN207468386U CN207468386U CN201721128279.7U CN201721128279U CN207468386U CN 207468386 U CN207468386 U CN 207468386U CN 201721128279 U CN201721128279 U CN 201721128279U CN 207468386 U CN207468386 U CN 207468386U
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Abstract
The utility model is related to technical field of waste water processing, more particularly to a kind of zero-discharge treatment system of mixed electroplating wastewater, which includes sequentially connected waste collection container, nanometered disposal system, sand carbon filter plant, film concentration systems and recovery system；The nanometered disposal system includes the first processing pond, nanometer air pump, second processing pond and nanometer ozone pump, the input terminal of first processing pond is connect with the output terminal of the waste collection container, the output terminal of first processing pond is connect with the input terminal in the second processing pond, the output terminal in the second processing pond is connect with the input terminal of the sand carbon filter plant, the output terminal of the nanometer air pump is connect with the first processing pond, and the output terminal of the nanometer ozone pump is connect with second processing pond.The zero-discharge treatment system of the utility model can be effectively treated mixed electroplating wastewater, and easily operated, control, and treatment effeciency is high, resource high recycling rate.
Description
Technical field
The utility model is related to technical field of waste water processing, and in particular to a kind of zero discharge treatment system of mixed electroplating wastewater
System.
Background technology
Mixed electroplating wastewater is simultaneously containing a variety of huge sum of moneys such as copper, nickel, chromium, zinc, silver, lead, cadmium, cyanogen, ammonia nitrogen and complexing agents
The waste water of category, electroplating additive etc. results from the cleaning of electroplating parts and coating bath waste liquid, generally in acid (pH ＜ 4), and with much money
Belong to ion and cyanogen, ammonia nitrogen and various complex compounds all in stable complex state, if waste water is adjusted to the alkaline condition that pH value is 11
Under, heavy metal hydroxide Chen Ding will not be generated.
The electroplating enterprise in China substantially manual operations in the production line at present, it is difficult to which accomplishing will be containing different metal type
Waste water Complete Classification collect, mutually do not join it is mixed.Therefore, current electroplating wastewater is mixed processing mostly, but tradition is to mixing
The processing technological flow of electroplating wastewater is：(1) broken cyanide：Two-stage oxidation is carried out with sodium hypochlorite, then carries out two-stage precipitation, cyaniding
Object is discharged into air by oxidation nitrogen under alkaline condition；(2) it adjusts under pH to acid condition, is restored with ferrous salt or sulphite
Cr VI in waste water becomes trivalent chromium, then adjusts pH value to 9 with sodium hydroxide, is settled out trivalent chromium；(3) chemical precipitation：With
Sodium hydroxide adjusts pH value of waste water respectively to 10,11, precipitates the hydroxide of copper, nickel respectively；(4) biochemical treatment：It is returned with acid
Adjust waste water to pH to be neutral, ammonia nitrogen, COD, phosphorus in biochemistry removal waste water；(5) supernatant：Flocculant, flocculating agent are added in, is adjusted repeatedly
The pH value of waste water is saved, carries out supernatant repeatedly；(6) it discharges.
But there are more shortcomings for the process system of traditional mixed electroplating wastewater：1st, broken cyanide, broken chromium, chemical precipitation, life
It is required in change processing using a large amount of chemicals, then generates a large amount of inorganic salts again, urban river water is increased after inorganic salts discharge
The inorganic salt pollution of body and saline Land risk；2nd, in traditional treatment process largely using soda acid agent conditioning agent, flocculant,
The reagents such as flocculating agent, the chemical cost of water per ton are higher；3rd, heavy metal in waste water and organic compound are finally converted to aqueous
80% sludge is a kind of dangerous solid waste of new book in cupric, nickel, chromium etc., and commission specialized company is also needed to carry out reprocessing meeting
Cause processing cost height；4th, traditional treatment process is difficult to reach newest discharging standards, and below standard waste water is discharged into ring
The pollution of environment can be caused in border.
Therefore, it is badly in need of being improved traditional electroplating waste water treatment system and perfect.
Utility model content
In order to overcome shortcoming and defect in the prior art, the purpose of this utility model is to provide a kind of mixing electricity
The zero-discharge treatment system of waste electroplating, the zero-discharge treatment system can be effectively treated mixed electroplating wastewater, and be easy to grasp
Make, control, treatment effeciency is high, resource high recycling rate.
The purpose of this utility model is achieved through the following technical solutions：A kind of zero discharge treatment system of mixed electroplating wastewater
System, including sequentially connected waste collection container, nanometered disposal system, sand carbon filter plant, film concentration systems and recovery system；
The nanometered disposal system includes the first processing pond, nanometer air pump, second processing pond and nanometer ozone pump, first processing
The input terminal in pond is connect with the output terminal of the waste collection container, the output terminal of the first processing pond and the second processing pond
Input terminal connects, and the output terminal in the second processing pond is connect with the input terminal of the sand carbon filter plant, the nanometer air
The output terminal of pump is connect with the first processing pond, and the output terminal of the nanometer ozone pump is connect with second processing pond.
Further, the zero-discharge treatment system further includes waste water pump, the input terminal of the waste water pump and the waste water
The output terminal connection of collection vessel, the output terminal of waste water pump are connect with the input terminal of first processing pond.
Further, the sand carbon filter plant filters fluid bed for sand carbon.
Further, the film concentration systems include sequentially connected ultrafiltration membrane, NF membrane and reverse osmosis membrane, the ultrafiltration
The input terminal of film is connect with the output terminal of the sand carbon filter plant, the output terminal of the reverse osmosis membrane and the recovery system
Input terminal connects.
Further, the recovery system include light liquid returnable, the input terminal of the light liquid returnable with it is described
The light liquid port of export connection of film concentration systems.
Further, the recovery system further includes dope processing unit, the dope processing unit include evaporation equipment,
Device of condensation recovery and equipment for purifying, the input terminal of the evaporation equipment are connect with the dope port of export of the film concentration systems,
The input terminal of the device of condensation recovery and the evaporation liquid port of export of evaporation equipment connect, the input terminal of the equipment for purifying and steaming
Send out the concentrate feed port of export connection of equipment.
Further, the evaporation equipment is mechanical steam recompression type evaporation equipment.
Further, the zero-discharge treatment system further includes purification returnable, the purification returnable with
The port of export connection of the equipment for purifying.
Further, the recovery system further includes dope returnable, the input terminal of the dope returnable and institute
State the dope port of export connection of film concentration systems.
The beneficial effects of the utility model are：The zero-discharge treatment system of the utility model can to mixed electroplating wastewater into
Row orderly, is effectively handled, and easily operated, control, treatment effeciency is high, and is not added the chemistry such as acid-alkali salt in processing system and tried
Agent, while resource reclaims such as copper, nickel, chromium, the inorganic salts in mixed electroplating wastewater and can recycle, improve the weight of resource
Multiple utilization rate, achievees the effect that environmentally friendly, at low cost, zero-emission.
Description of the drawings
Fig. 1 is the system framework schematic diagram of the utility model.
Reference numeral is：1-waste collection container, 2-nanometered disposal system, the 21-the first processing pond, 22-nanometer are empty
Air pump, 23-second processing pond, 24-nanometer ozone pump, 3-sand carbon filter plant, 4-film concentration systems, 41-ultrafiltration membrane,
42-NF membrane, 43-reverse osmosis membrane, 5-recovery system, 51-light liquid returnable, 52-dope processing unit, 521-are steamed
Send out equipment, 522-device of condensation recovery, 523-equipment for purifying, 524-purification returnable, 53-dope returnable,
6-waste water pump.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made into one with reference to embodiment and attached drawing 1
The explanation of step, the content that embodiment refers to not are the restriction to the utility model.
See Fig. 1, a kind of zero-discharge treatment system of mixed electroplating wastewater including sequentially connected waste collection container 1, is received
Rice processing system 2, sand carbon filter plant 3, film concentration systems 4 and recovery system 5；The nanometered disposal system 2 is included at first
Manage pond 21, nanometer air pump 22, second processing pond 23 and nanometer ozone pump 24, the input terminal of first processing pond 21 with it is described
The output terminal connection of waste collection container 1, the output terminal of the first processing pond 21 are connect with the input terminal in the second processing pond 23,
The output terminal in the second processing pond 23 is connect with the input terminal of the sand carbon filter plant 3, the nanometer air pump 22 it is defeated
Outlet is connect with the first processing pond 21, and the output terminal of the nanometer ozone pump 24 is connect with second processing pond 23.
The zero-discharge treatment system of the present embodiment can carry out mixed electroplating wastewater orderly, effectively to handle, easily operated,
Control, and the chemical reagent such as acid-alkali salt are not added in processing system, do not increase the salt in waste water and new chemical constituent, Jin Erti
The film concentration rate of high film concentration systems 4, while can be resource reclaims such as copper, nickel, chromium, the inorganic salts in mixed electroplating wastewater simultaneously
It recycles, improves the recycling rate of waterused of resource, achieve the effect that environmentally friendly, at low cost, zero-emission.
Wherein, the zero-discharge treatment system of the present embodiment in actual use, the nanometer air of nanometer waste water treatment system
Air express pump into negatively charged nanometer air bubble in waste water, is formed, is adsorbed oil film and suspended matter in waste water by pump 22
And float on the waste water water surface, the clarification of underwater, the waste water without oil film, no suspended substance are expelled in second processing pond 23 and carried out down
The processing of one step, avoid micro oil in mixed electroplating wastewater and other suspended matters to the ozone-depleting of follow-up ozone treatment and
The reverse osmosis membrane 43 of polluted membrane concentration systems 4；The nanometer ozone pump 24 of nanometer waste water treatment system is by ozone express pump into waste water
In, nanometer ozone bubbles are formed, a large amount of alkyl radicals of hydroxide and the ozone generation of ozone can be by the cyaniding in waste water
Object is oxidized to nitrogen and is discharged into air, the chemicals such as Decomposition Wastewater complexing agent, electroplating additives, releases Cu in waste water, nickel, silver, zinc
Etc. heavy metal ion and cyanide complex status, become the metal ion of the exposed state of monomer, and combine chemicals and degrade, significantly
COD value of waste water is reduced, the reverse osmosis membrane 43 be conducive in protective film concentration systems 4 is not blocked；Then it is filtered again by sand carbon
Equipment 3 effectively cleans to the impurity in waste water, and impurity is avoided to block film concentration systems 4；It is carried out again by film concentration systems 4
The concentration of waste water obtains the light liquid of waste water (about 98%) and waste water dope (about 2%) and handles respectively, reaches the repetition profit of resource
With.
In the present embodiment, the zero-discharge treatment system further includes waste water pump 6, the input terminal of the waste water pump 6 with it is described
The output terminal connection of waste collection container 1, the output terminal of waste water pump 6 are connect with the input terminal of first processing pond 21.This reality
Example is applied by setting waste water pump 6, and between waste water pump 6 is connected to 1 and first processing pond 21 of waste collection container, can effectively controlled
The treating capacity of the first processing pond 21 is made, improves the order of zero-discharge treatment system.
In the present embodiment, the sand carbon filter plant 3 filters fluid bed for sand carbon.The present embodiment is filtered by using sand carbon
Fluid bed, it can be achieved that sand carbon filtering continuous automatic fitration and clean repeatedly automatically, save complexity backwash valve member and control
System processed improves the efficiency of wastewater treatment.
In the present embodiment, the film concentration systems 4 include sequentially connected ultrafiltration membrane 41, NF membrane 42 and reverse osmosis membrane
43, the input terminal of the ultrafiltration membrane 41 is connect with the output terminal of the sand carbon filter plant 3, the output terminal of the reverse osmosis membrane 43
It is connect with the input terminal of the recovery system 5.
The present embodiment can make waste water pass sequentially through ultrafiltration membrane 41, NF membrane 42 and reverse osmosis by using film concentration systems 4
The heavy metallic salts and sodium sulphate etc. such as copper various in waste water, nickel, chromium inorganic salts are concentrated 30-50 times, reduce subsequent evaporation by film 43
The evaporation capacity of equipment 521 improves evaporation efficiency, in favor of Resource recovery, improves the recycling rate of waterused of resource；Wherein, this implementation
The film concentration systems 4 of example need to maintain the pH of film concentrated water to be less than 5, avoid the formation of fouling and clogging ultrafiltration membrane 41, NF membrane 42 and reverse osmosis
Permeable membrane 43.
In the present embodiment, the recovery system 5 includes light liquid returnable 51, the input terminal of the light liquid returnable 51
It is connect with the light liquid port of export of the film concentration systems 4.It is dense will to pass through film by setting light liquid returnable 51 for the present embodiment
Treated that light liquid is orderly recycled for compression system 4, is used available for other field, improves the recycling rate of waterused of resource, reach
The effect of zero-emission.
In the present embodiment, the recovery system 5 further includes dope processing unit 52, and the dope processing unit 52 includes steaming
Equipment 521, device of condensation recovery 522 and equipment for purifying 523 are sent out, input terminal and the film concentration of the evaporation equipment 521 are
The dope port of export connection of system 4, the input terminal of the device of condensation recovery 522 connect with the evaporation liquid port of export of evaporation equipment 521
It connects, the input terminal of the equipment for purifying 523 is connect with the concentrate feed port of export of evaporation equipment 521.
The present embodiment can will pass through film concentration systems 4 treated that dope has by setting dope processing unit 52
The MVR evaporative crystallizations of sequence, evaporate formation water vapour it is condensed after orderly recycled into condensate recycling device, raising
The recycling rate of waterused of resource；Heavy metallic salt after evaporation in waste water dope forms crystallization slurry, is carried out into equipment for purifying 523 cold
But, the processing such as centrifugation, filtering form crystallization complex salt；Wherein, the evaporation equipment 521 of the present embodiment need to maintain waste water dope pH
Value is less than 5 subacidity, so that the substances such as ammonia nitrogen, inorganic nitrogen, nitrate nitrogen in waste water dope keep ammonium salts to be present in
In dope, without being evaporated and being entered in condensed water in the form of gaseous ammonia.
In the present embodiment, the evaporation equipment 521 is mechanical steam recompression type evaporation equipment.The present embodiment is by adopting
With mechanical steam recompression type evaporation equipment, release compressor can be utilized to be evaporated in vacuo waste water dope, while make steam water
Compression rises mild heat, improves the evaporation efficiency of waste water dope, and then improve the treatment effeciency of zero-discharge treatment system.
In the present embodiment, the zero-discharge treatment system further includes purification returnable 524, and the purification recycling is held
Device 524 is connect with the port of export of the equipment for purifying 523.The present embodiment can will be purified by setting purification returnable 524
Crystallization complex salt obtained is orderly recycled afterwards, improves the order and treatment effeciency of zero-discharge treatment system.
In the present embodiment, the recovery system 5 further includes dope returnable 53, the input of the dope returnable 53
End is connect with the dope port of export of the film concentration systems 4.It is dense can will to pass through film by the way that dope is set to recycle solution for the present embodiment
Dope after contracting is recycled, and can be sold, and the resource recycling rate of waterused and processing for improving zero-discharge treatment system have
Sequence.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model without departing from the concept of the premise utility
Within enclosing.
Claims (9)
1. a kind of zero-discharge treatment system of mixed electroplating wastewater, it is characterised in that：Including sequentially connected waste collection container,
Nanometered disposal system, sand carbon filter plant, film concentration systems and recovery system；The nanometered disposal system includes the first processing
Pond, nanometer air pump, second processing pond and nanometer ozone pump, input terminal and the waste collection container of first processing pond
Output terminal connection, the output terminal of the first processing pond connect with the input terminal in the second processing pond, the second processing pond
Output terminal is connect with the input terminal of the sand carbon filter plant, and the output terminal of the nanometer air pump is connect with the first processing pond,
The output terminal of the nanometer ozone pump is connect with second processing pond.
2. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The zero-emission
It puts processing system and further includes waste water pump, the input terminal of the waste water pump is connect with the output terminal of the waste collection container, waste water
The output terminal of pump is connect with the input terminal of first processing pond.
3. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The sand carbon
Filter plant filters fluid bed for sand carbon.
4. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The film is dense
Compression system includes sequentially connected ultrafiltration membrane, NF membrane and reverse osmosis membrane, and the input terminal of the ultrafiltration membrane is filtered with the sand carbon
The output terminal connection of equipment, the output terminal of the reverse osmosis membrane are connect with the input terminal of the recovery system.
5. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The recycling
System includes light liquid returnable, and the input terminal of the light liquid returnable connects with the light liquid port of export of the film concentration systems
It connects.
6. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The recycling
System further includes dope processing unit, and the dope processing unit includes evaporation equipment, device of condensation recovery and equipment for purifying, institute
The input terminal for stating evaporation equipment is connect with the dope port of export of the film concentration systems, the input terminal of the device of condensation recovery with
The evaporation liquid port of export connection of evaporation equipment, the input terminal of the equipment for purifying and the concentrate feed port of export of evaporation equipment connect.
7. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 6, it is characterised in that：The evaporation
Equipment is mechanical steam recompression type evaporation equipment.
8. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 6, it is characterised in that：The zero-emission
It puts processing system and further includes purification returnable, the purification returnable is connect with the port of export of the equipment for purifying.
9. a kind of zero-discharge treatment system of mixed electroplating wastewater according to claim 1, it is characterised in that：The recycling
System further includes dope returnable, and the input terminal of the dope returnable and the dope port of export of the film concentration systems connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128279.7U CN207468386U (en) | 2017-09-04 | 2017-09-04 | A kind of zero-discharge treatment system of mixed electroplating wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128279.7U CN207468386U (en) | 2017-09-04 | 2017-09-04 | A kind of zero-discharge treatment system of mixed electroplating wastewater |
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| CN207468386U true CN207468386U (en) | 2018-06-08 |
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| CN201721128279.7U Active CN207468386U (en) | 2017-09-04 | 2017-09-04 | A kind of zero-discharge treatment system of mixed electroplating wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436673A (en) * | 2019-09-02 | 2019-11-12 | 宝武集团环境资源科技有限公司 | A kind of Treating Electroplate Wastewater Containing Nickel recycling and reusing method |
| CN113716732A (en) * | 2021-08-09 | 2021-11-30 | 杭州新禹环保科技有限公司 | Electroplating effluent zero release processing system |
-
2017
- 2017-09-04 CN CN201721128279.7U patent/CN207468386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436673A (en) * | 2019-09-02 | 2019-11-12 | 宝武集团环境资源科技有限公司 | A kind of Treating Electroplate Wastewater Containing Nickel recycling and reusing method |
| CN113716732A (en) * | 2021-08-09 | 2021-11-30 | 杭州新禹环保科技有限公司 | Electroplating effluent zero release processing system |
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