CN206799316U - A kind of electroplating wastewater total system - Google Patents
A kind of electroplating wastewater total system Download PDFInfo
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- CN206799316U CN206799316U CN201720510699.5U CN201720510699U CN206799316U CN 206799316 U CN206799316 U CN 206799316U CN 201720510699 U CN201720510699 U CN 201720510699U CN 206799316 U CN206799316 U CN 206799316U
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Abstract
The utility model discloses a kind of electroplating wastewater total system, belong to technical field of waste water processing.Electroplating wastewater total system of the present utility model, including comprehensive wastewater regulating reservoir, cyanide wastewater regulating reservoir, chromate waste water regulating reservoir, hexavalent chrome reduction groove, broken cyanide groove, flocculation reaction groove, medial launder, perpendicular stream subsider, sludge concentration tank, sandfiltration pot, clear water reserviors and filter press.The utility model can handle the multiclass electroplating wastewater that electroplating facility is discharged simultaneously, reduce processing cost and improve treatment effeciency.
Description
Technical field
Technical field of waste water processing is the utility model is related to, more particularly to a kind of electroplating wastewater total system.
Background technology
One typical heavy polluted industry during electroplating industry.A large amount of strong acid, highly basic, a huge sum of money are needed to use in electroplating process
Belong to salt, organic additive, even include the poisonous and harmful chemicals such as cyanide, chromic anhydride.Electroplating wastewater caused by electroplating workshop
In containing contents of many kinds of heavy metal ion and sewage in acidity, because heavy metal contained therein is mostly a class of pollutant, so plating
Waste water is the sewage that environmental administration strictly controls, and state's laws provide that this pollutant must be after mouth processing in workshop be up to standard, side
Factory can be imported by pipeline and always arranges mouth discharge.If do not dealt carefully with and disposing, it will cause more serious consequence.
Electroplating wastewater can be generally divided into three classes：The first kind is electroplating wastewater of chromium, the chromium ion in this electroplating wastewater
Concentration is higher；Second class is cyanide-containing electroplating water, and the cyanide ion concentration in this electroplating wastewater is higher；3rd class is comprehensive electricity
Waste electroplating, this electroplating wastewater mainly contain contents of many kinds of heavy metal ion.Current electroplating waste water treatment equipment and handling process
When carrying out electroplating wastewater processing, it is normally only that a certain electroplating wastewater being directed in above-mentioned three kinds is handled, greatly carries
High processing cost, and treatment effeciency is relatively low.
Utility model content
A kind of the problem of the purpose of this utility model is to overcome above-mentioned background technology to exist, there is provided electroplating wastewater General Office
Reason system, the multiclass electroplating wastewater that electroplating facility is discharged can be handled simultaneously, reduce processing cost and improve treatment effeciency.
The utility model is achieved in that a kind of electroplating wastewater total system, including comprehensive wastewater regulating reservoir, contains
Cyanogen wastewater equalization pond, chromate waste water regulating reservoir, hexavalent chrome reduction groove, broken cyanide groove, flocculation reaction groove, medial launder, stream subsider is erected,
Sludge concentration tank, sandfiltration pot, clear water reserviors and filter press；
Between cyanide wastewater regulating reservoir and broken cyanide groove, it is between chromate waste water regulating reservoir and hexavalent chrome reduction groove and comprehensive useless
Respectively by pipeline connection between water regulating reservoir and flocculation reaction groove, flocculation reaction groove, medial launder, perpendicular stream subsider, sandfiltration pot,
Pipeline connection is passed sequentially through between clear water reserviors, the bottom of perpendicular stream subsider is provided with sewage draining exit, and the sewage draining exit of perpendicular stream subsider leads to
To cross blow-off line and access to sludge concentration tank, the mud discharging mouth of sludge concentration tank is connected by mud discharging pipe with filter press,
The delivery port of broken cyanide groove is connected by pipeline with comprehensive wastewater regulating reservoir, and the delivery port of hexavalent chrome reduction groove passes through pipeline and synthesis
Wastewater equalization pond is connected, and comprehensive wastewater regulating reservoir is connected by pipeline with flocculation reaction groove.
Further, in addition to decoction add-on system, decoction add-on system include lye tank (vat), acid storage, NaClO drug slots,
Na2SO3Drug slot and PAM drug slots；
Be separated into broken cyanide groove the single treatment lattice that first be post-processed of waste water that cyanide wastewater regulating reservoir can be conveyed with
After-treatment lattice, lye tank (vat), NaClO drug slots are connected by infusion pipeline with the single treatment lattice of broken cyanide groove respectively, NaClO drug slots
Also it is connected by infusion pipeline with the after-treatment lattice of broken cyanide groove, lye tank (vat) is also connected by infusion pipeline with flocculation reaction groove,
Acid storage, Na2SO3Drug slot is connected by infusion pipeline with hexavalent chrome reduction groove respectively, and acid storage also passes through infusion pipeline and broken cyanide
The after-treatment lattice connection of groove, PAM drug slots are connected by infusion pipeline with flocculation reaction groove；
The the first processing lattice and second processing lattice first post-processed to chromate waste water, acid are separated into hexavalent chrome reduction groove
Liquid bath is connected by infusion pipeline with the first processing lattice of hexavalent chrome reduction groove, and NaClO drug slots pass through infusion pipeline and Cr VI
The second processing lattice connection of reduction cell.
Further, lifting is provided with cyanide wastewater regulating reservoir, chromate waste water regulating reservoir and comprehensive wastewater regulating reservoir
Pump, the waste water in cyanide wastewater regulating reservoir are lifted broken cyanide groove by elevator pump by the road, the waste water in chromate waste water regulating reservoir by
Elevator pump lifts hexavalent chrome reduction groove by the road, and the waste water in comprehensive wastewater regulating reservoir lifts flocculation by the road by elevator pump
Reactive tank.
Further, comprehensive wastewater regulating reservoir is used to that comprehensive wastewater caused by production will to be electroplated, after broken cyanide groove broken cyanide
Waste water and through hexavalent chrome reduction groove processing after the sewage containing trivalent chromium through reduction carry out jointly homogeneous, amount handle be delivered to again
Flocculation reaction groove.
Relative to prior art, the utility model has the advantages that：
The utility model provides a kind of electroplating wastewater total system, can handle what electroplating facility was discharged simultaneously
Multiclass electroplating wastewater, reduce processing cost and improve treatment effeciency.
Brief description of the drawings
Fig. 1 is a kind of electroplating wastewater total system schematic diagram provided by the utility model.
Description of reference numerals：
1st, comprehensive wastewater regulating reservoir, 2, chromate waste water regulating reservoir, 3, hexavalent chrome reduction groove, 4, cyanide wastewater regulating reservoir, 5,
Broken cyanide groove, 6, lye tank (vat), 7, acid storage, 8, NaClO drug slots, 9, Na2SO3Drug slot, 10, PAM drug slots, 11, flocculation reaction groove, 12,
Medial launder, 13, perpendicular stream subsider, 14, sludge concentration tank, 15, sandfiltration pot, 16, clear water reserviors, 17, filter press, 18, elevator pump.
Embodiment
Below in conjunction with the accompanying drawings, an embodiment of the present utility model is described in detail, it is to be understood that this
The protection domain of utility model is not limited by embodiment.
Fig. 1 is a kind of electroplating wastewater total system schematic diagram that the utility model embodiment provides.As shown in figure 1,
The electroplating wastewater total system specifically includes：Comprehensive wastewater regulating reservoir 1, cyanide wastewater regulating reservoir 4, chromate waste water regulating reservoir
2, hexavalent chrome reduction groove 3, broken cyanide groove 5, flocculation reaction groove 11, medial launder 12, erect stream subsider 13, sludge concentration tank 14, sand filtration
Tank 15, clear water reserviors 16 and filter press 17；
Between cyanide wastewater regulating reservoir 4 and broken cyanide groove 5, it is between chromate waste water regulating reservoir 2 and hexavalent chrome reduction groove 3 and comprehensive
It is heavy by pipeline connection, flocculation reaction groove 11, medial launder 12, perpendicular stream respectively between wastewater equalization pond 1 and flocculation reaction groove 11 to close
Pipeline connection is passed sequentially through between drop groove 13, sandfiltration pot 15, clear water reserviors 16, the bottom of perpendicular stream subsider 13 is provided with sewage draining exit,
The sewage draining exit of perpendicular stream subsider 13 accesses to sludge concentration tank 14 by blow-off line, and the mud discharging mouth of sludge concentration tank 14 leads to
Cross mud discharging pipe to be connected with filter press 17, the delivery port of broken cyanide groove 5 is connected by pipeline with comprehensive wastewater regulating reservoir 1, sexavalence
The delivery port of chromium reduction cell 3 is connected by pipeline with comprehensive wastewater regulating reservoir 1, and comprehensive wastewater regulating reservoir 1 passes through pipeline and flocculation
Reactive tank 11 connects.
In the utility model embodiment, the electroplating wastewater total system also includes decoction add-on system, and decoction adds
Adding system includes lye tank (vat) 6, acid storage 7, NaClO drug slots 8, Na2SO3Drug slot 9 and PAM drug slots 10.The electroplating wastewater integrated treatment
System can be realized easily to broken cyanide groove 5, hexavalent chrome reduction groove 3, flocculation reaction groove 1 by the setting of decoction add-on system
The addition of inner liquid medicine.
The single treatment lattice that the waste water that being separated into broken cyanide groove 5 can convey to cyanide wastewater regulating reservoir 4 is first post-processed
With after-treatment lattice, in the utility model embodiment, broken cyanide groove 5 designs single treatment lattice and after-treatment lattice, can be to defeated
The cyanide wastewater sent uses secondary alkaline chlorination process broken cyanide, and oxidant uses NaClO, the confession of decoction is carried out by NaClO drug slots 8
Give, once oxidation stage pH controls are controlled between 7-8 in 10-11, secondary broken cyanide pH.Lye tank (vat) 6, NaClO drug slots 8 are led to respectively
Cross infusion pipeline to be connected with the single treatment lattice of broken cyanide groove 5, NaClO drug slots 8 also pass through the secondary place of infusion pipeline and broken cyanide groove 5
Li Ge connections, lye tank (vat) 6 are also connected by infusion pipeline with flocculation reaction groove 11, acid storage 7, Na2SO3Drug slot 9 is respectively by defeated
Liquid pipeline is connected with hexavalent chrome reduction groove 3, and acid storage 7 is also connected by infusion pipeline with the after-treatment lattice of broken cyanide groove 5, PAM
Drug slot 10 is connected by infusion pipeline with flocculation reaction groove 11.
The the first processing lattice and second processing lattice first post-processed to chromate waste water are separated into hexavalent chrome reduction groove 3,
Acid storage 7 is connected by infusion pipeline with the first processing lattice of hexavalent chrome reduction groove 3, and NaClO drug slots 8 pass through infusion pipeline and six
The second processing lattice connection of valency chromium reduction cell 3.
Elevator pump 18 is provided with cyanide wastewater regulating reservoir 4, chromate waste water regulating reservoir 2 and comprehensive wastewater regulating reservoir 1,
Waste water in cyanide wastewater regulating reservoir 4 is lifted broken cyanide groove 5 by elevator pump by the road, the waste water in chromate waste water regulating reservoir 2 by
Elevator pump lifts hexavalent chrome reduction groove 3 by the road, and the waste water in comprehensive wastewater regulating reservoir 1 lifts wadding by the road by elevator pump
Solidifying reactive tank 11.
When carrying out the broken cyanide processing of cyanide wastewater, the cyanide wastewater of workshop discharge is collected into cyanide wastewater regulating reservoir 4, so
The single treatment lattice of broken cyanide groove 5 are pumped into afterwards, manage in this place in lattice, alkali is added into pond to pH by lye tank (vat) 6：10~11, lead to
NaClO drug slots 8 to be crossed to add NaClO, carry out a broken cyanide, the after-treatment lattice for then flowing into broken cyanide groove 5 carry out secondary broken cyanide,
Secondary broken cyanide adjusts pH to 7.5~8 by acid storage 7 to add sulfuric acid, adds NaClO by NaClO drug slots 8, carries out secondary
Broken cyanide.In the present embodiment, agitating device is all provided with the single treatment lattice and after-treatment lattice of broken cyanide groove 5, when carrying out broken cyanide
Using mechanical agitation.Waste water after secondary broken cyanide, sewage flows into comprehensive wastewater regulating reservoir 4 after cryanide ion is up to standard.
When carrying out the processing of chromate waste water, the chromate waste water of workshop discharge enters chromate waste water regulating reservoir 2, then containing chromium
Chromate waste water in wastewater equalization pond 2 is pumped into the first processing lattice for being promoted to hexavalent chrome reduction groove 3, passes through metering by acid storage 7
Pump adds sulfuric acid into pond, pH value is formed control by pH meter and measuring pump in 2~2.5 scopes, progress acidification, the process
Complete jointly in loop processed.Waste water after acidifying flows automatically to the second processing lattice of hexavalent chrome reduction groove 3, by Na2SO3Drug slot 9 passes through meter
Amount pump adds sodium sulfite solution into pond, carries out reduction reaction, reacted rear Cr6+Restore All is into Cr3+, it is useless after reduction
Water is discharged in comprehensive wastewater regulating reservoir 1, reduction process can be counted by ORP, and measuring pump composition control loop is completed.
Comprehensive wastewater regulating reservoir 1 be used for will comprehensive wastewater caused by plating production, waste water after the broken cyanide of broken cyanide groove 5 with
And the sewage containing trivalent chromium through reduction enters progress homogeneous in medial launder 12, at amount jointly after the processing of hexavalent chrome reduction groove 3
Reason, then flocculation reaction groove 11 is delivered to, so as to carry out follow-up precipitation process.
Comprehensive wastewater in comprehensive wastewater regulating reservoir 1 is the same as the waste water after broken cyanide and the sewage containing trivalent chromium through reduction one
With being stayed for some time into comprehensive adjustment pond 1, carry out homogeneous, measure.The sewage of mixing is located every time in comprehensive wastewater regulating reservoir 1
During reason, flocculation reaction groove 11 is lifted into by comprehensive wastewater regulating reservoir 1 by elevator pump first, from lye tank (vat) 6 by measuring pump to
In flocculation reaction groove 11 plus alkali forms precipitation, can in flocculation reaction groove 11 in order to control the pH scopes of precipitation exactly
Set pH to pop one's head in online, PAM then can be added into flocculation reaction groove 11 by measuring pump from PAM drug slots 10 and helps solidifying, sewage exists
After being reacted in flocculation reaction groove 11, subsequently into medial launder 12, then perpendicular stream stillpot 13 is lifted into by pump and precipitated.Precipitation
Water outlet is filtered into sandfiltration pot 15 afterwards, and the water after filtering enters clear water reserviors 16, after acid adding adjusts back pH, electroplating assembly line can be used as to rush
Wash water reuse.Sludge caused by perpendicular stream subsider enters sludge concentration tank, the sludge after concentration through the squeezing of plate and frame filter press 17 at
Into mud cake after reason, a certain proportion of silica flour, cement are added into mud cake, rear security landfill is stirred or delivers to hazardous waste
Landfill yard security landfill is disposed.Sludge concentration tank supernatant and plate compression water are back to regulating reservoir after-treatment.
The electroplating wastewater total system that the utility model embodiment provides, including comprehensive wastewater regulating reservoir 1, give up containing cyanogen
Water regulating reservoir 4, chromate waste water regulating reservoir 2, hexavalent chrome reduction groove 3, broken cyanide groove 5, flocculation reaction groove 11, medial launder 12, it is heavy to erect stream
Groove 13, sludge concentration tank 14, sandfiltration pot 15, clear water reserviors 16 and filter press 17 drop.The electroplating wastewater total system is according to electricity
Waste electroplating feature and to different types of electroplating wastewater (cyanide-containing electroplating water, electroplating wastewater of chromium, integrative electroplating waste)
Processing requirement designs.When carrying out electroplating wastewater processing using the electroplating wastewater total system, using chemical oxygen
Change the technique that reducing process and chemical precipitation method are combined, can be to carrying out qualified discharge after electroplating wastewater processing.
Due to the particularity of cyanide wastewater, the present invention carries out independent broken cyanide pretreatment to cyanide wastewater, in view of inorganic chemistry
The irreversibility of reaction, to reduce investment outlay, streamlining management, the waste water after broken cyanide is complete enters comprehensive wastewater regulating reservoir 1, then again with
Comprehensive wastewater carries out post precipitation processing together.
Chromium in chromate waste water is mainly with chromate (Cr6+) ionic formses presence, in the present invention, utilize hexavalent chrome reduction
Groove 3 is by Cr in chromate waste water6+It is reduced into micro- malicious Cr3+Ionic formses, the chromate waste water after processing are adjusted subsequently into comprehensive wastewater
Save pond 1, then again with the comprehensive wastewater in comprehensive wastewater regulating reservoir 1 and the chromate waste water from hexavalent chrome reduction groove 3 carry out
Mixing so that the cyanide wastewater after chromate waste water, broken cyanide processing after chromium reduction together carries out follow-up precipitation with comprehensive wastewater
Processing, by most Cr in waste water in flocculation reaction groove 113+、Pb2+And Ni2+、Ag+、Zn2+、Cu2+、Fe2+、Al3+Deng metal
Ion generation hydroxide precipitation, help heavy by adding high polymer coagulant, make hydroxide precipitation aggregation, then through medial launder 12
Perpendicular stream subsider 13 is entered, is settled by perpendicular stream subsider 13, supernatant is sent to clear water after filtering from sandfiltration pot 15 is flowed into
Pond 16, after acid adding adjusts back pH, as reclaiming system raw water or outer row.The perpendicular stream bottom sediment of stillpot 13 is periodically arranged by pipeline
Enter sludge concentration tank 14, the sludge after concentration squeezes into filter press 17 with pump, and the sludge cake after press filtration separation delivers to hazardous waste
Landfill yard carries out security landfill disposal, and press filtration water returns to regulating reservoir after-treatment.
Disclosed above is only preferred embodiment of the present utility model, and still, the utility model embodiment is not limited to
This, the changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (4)
1. a kind of electroplating wastewater total system, it is characterised in that including comprehensive wastewater regulating reservoir (1), cyanide wastewater regulation
Pond (4), chromate waste water regulating reservoir (2), hexavalent chrome reduction groove (3), broken cyanide groove (5), flocculation reaction groove (11), medial launder (12),
Perpendicular stream subsider (13), sludge concentration tank (14), sandfiltration pot (15), clear water reserviors (16) and filter press (17)；
Between cyanide wastewater regulating reservoir (4) and broken cyanide groove (5), between chromate waste water regulating reservoir (2) and hexavalent chrome reduction groove (3) with
And pass through pipeline connection, flocculation reaction groove (11), medial launder between comprehensive wastewater regulating reservoir (1) and flocculation reaction groove (11) respectively
(12), erect and pipeline connection is passed sequentially through between stream subsider (13), sandfiltration pot (15), clear water reserviors (16), erect stream subsider (13)
Bottom be provided with sewage draining exit, the sewage draining exit of perpendicular stream subsider (13) accesses to sludge concentration tank (14) by blow-off line, dirty
The mud discharging mouth of mud thickener (14) is connected by mud discharging pipe with filter press (17), and the delivery port of broken cyanide groove (5) passes through
Pipeline is connected with comprehensive wastewater regulating reservoir (1), and the delivery port of hexavalent chrome reduction groove (3) passes through pipeline and comprehensive wastewater regulating reservoir
(1) connect, comprehensive wastewater regulating reservoir (1) is connected by pipeline with flocculation reaction groove (11).
2. a kind of electroplating wastewater total system as claimed in claim 1, it is characterised in that also including decoction add-on system, medicine
Liquid add-on system includes lye tank (vat) (6), acid storage (7), NaClO drug slots (8), Na2SO3Drug slot (9) and PAM drug slots (10)；
The single treatment lattice that the waste water that being separated into broken cyanide groove (5) can convey to cyanide wastewater regulating reservoir (4) is first post-processed
With after-treatment lattice, lye tank (vat) (6), NaClO drug slots (8) are connected by the single treatment lattice of infusion pipeline and broken cyanide groove (5) respectively
Connect, NaClO drug slots (8) are also connected by infusion pipeline with the after-treatment lattice of broken cyanide groove (5), and lye tank (vat) (6) also passes through transfusion
Pipeline is connected with flocculation reaction groove (11), acid storage (7), Na2SO3Drug slot (9) passes through infusion pipeline and hexavalent chrome reduction groove respectively
(3) connect, acid storage (7) is also connected by infusion pipeline with the after-treatment lattice of broken cyanide groove (5), and PAM drug slots (10) are by defeated
Liquid pipeline is connected with flocculation reaction groove (11)；
The the first processing lattice and second processing lattice first post-processed to chromate waste water, acid are separated into hexavalent chrome reduction groove (3)
Liquid bath (7) is connected by infusion pipeline with the first processing lattice of hexavalent chrome reduction groove (3), and NaClO drug slots (8) pass through infusion pipeline
It is connected with the second processing lattice of hexavalent chrome reduction groove (3).
A kind of 3. electroplating wastewater total system as claimed in claim 1, it is characterised in that cyanide wastewater regulating reservoir (4),
Elevator pump (18), cyanide wastewater regulating reservoir (4) are provided with chromate waste water regulating reservoir (2) and comprehensive wastewater regulating reservoir (1)
Interior waste water is lifted broken cyanide groove (5) by elevator pump by the road, the waste water in chromate waste water regulating reservoir (2) by elevator pump by the road
Lift hexavalent chrome reduction groove (3), the waste water in comprehensive wastewater regulating reservoir (1) is lifted flocculation reaction groove by elevator pump by the road
(11)。
A kind of 4. electroplating wastewater total system as claimed in claim 1, it is characterised in that comprehensive wastewater regulating reservoir (1)
For will comprehensive wastewater caused by plating production, waste water after broken cyanide groove (5) broken cyanide and through hexavalent chrome reduction groove (3) place
The sewage containing trivalent chromium through reduction carries out homogeneous jointly after reason, amount processing is delivered to flocculation reaction groove (11) again.
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| CN201720510699.5U CN206799316U (en) | 2017-05-10 | 2017-05-10 | A kind of electroplating wastewater total system |
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| CN201720510699.5U CN206799316U (en) | 2017-05-10 | 2017-05-10 | A kind of electroplating wastewater total system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021102824A1 (en) * | 2019-11-28 | 2021-06-03 | 叶文静 | Method for treating comprehensive electroplating wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021102824A1 (en) * | 2019-11-28 | 2021-06-03 | 叶文静 | Method for treating comprehensive electroplating wastewater |
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