CN108689537A - A kind of processing system and technique of wheel hub production waste water - Google Patents
A kind of processing system and technique of wheel hub production waste water Download PDFInfo
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- CN108689537A CN108689537A CN201810872913.0A CN201810872913A CN108689537A CN 108689537 A CN108689537 A CN 108689537A CN 201810872913 A CN201810872913 A CN 201810872913A CN 108689537 A CN108689537 A CN 108689537A
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- waste water
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- tank liquor
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- 239000002351 wastewater Substances 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000005406 washing Methods 0.000 claims abstract description 190
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 184
- 230000001112 coagulating effect Effects 0.000 claims abstract description 68
- 238000001556 precipitation Methods 0.000 claims abstract description 40
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000013505 freshwater Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000005238 degreasing Methods 0.000 claims description 65
- 238000005520 cutting process Methods 0.000 claims description 47
- 239000012528 membrane Substances 0.000 claims description 37
- 230000008569 process Effects 0.000 claims description 35
- 238000004062 sedimentation Methods 0.000 claims description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 34
- 238000001223 reverse osmosis Methods 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000000108 ultra-filtration Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000012071 phase Substances 0.000 claims description 17
- 238000005554 pickling Methods 0.000 claims description 16
- 238000011282 treatment Methods 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- 238000002161 passivation Methods 0.000 claims description 14
- 238000000265 homogenisation Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 229920002401 polyacrylamide Polymers 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 7
- 239000002173 cutting fluid Substances 0.000 claims description 6
- 230000000593 degrading effect Effects 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 239000008346 aqueous phase Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000010525 oxidative degradation reaction Methods 0.000 claims description 3
- 238000005191 phase separation Methods 0.000 claims description 3
- 238000004075 wastewater filtration Methods 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000010802 sludge Substances 0.000 description 18
- 239000003513 alkali Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910001448 ferrous ion Inorganic materials 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- -1 Iron ion Chemical class 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses processing systems and technique that a kind of wheel hub produces waste water, and processing system includes the washing waste water processing subsystem for handling washing waste water and the high load wastewater treatment subsystem for handling hc effluent;Washing waste water processing subsystem includes sequentially connected washing pH regulating reservoirs, washing coagulative precipitation tank, washing filtering unit and washing film separation unit;The water outlet of washing film separation unit includes that concentrated water outlet and water outlet, water outlet are connected with reuse unit;High load wastewater treatment subsystem includes sequentially connected highly concentrated homogeneous pond, highly concentrated pH regulating reservoirs and highly concentrated coagulative precipitation tank, and concentrated water outlet connects the water inlet in highly concentrated homogeneous pond.The present invention separately handles hc effluent and washing waste water, and washing waste water fresh water part reuse that treated to production line, washing waste water concentrated water part is handled as hc effluent.
Description
Technical field
The present invention relates to processing systems and technique that technical field of waste water processing more particularly to a kind of wheel hub produce waste water.
Background technology
Wheel hub is important security personnel's part in running car system.With steel wheel hub and than aluminium alloy wheel hub has more accurate
Go to action and enter curved performance, reduces the thermal inertia of the rotating parts such as wheel, thermal diffusivity is good, improves acceleration and braking
Property.Have that concentricity is high, longitudinal end multiplies to low, car of beating and sails steady, reasonable stress, corrosion-resistant, handsome in appearance, easy to assembly concurrently
With the manufacturing cycle it is short the advantages that.Therefore, the use of aluminium alloy wheel hub is very universal, and occupation rate of market is about 70~75%, attracts
More and more manufacturers enter in the production of the auto parts and components.In order to keep wheel hub more aesthetically pleasing, need to aluminium alloy
Wheel hub carries out surface treatments, the surface treatment process such as application and will produce the production waste water of complicated component.The electroplating technology one of wheel hub
As include following process:The wheel hub of casting and forming → CNC machinings → degreasing degreasing → pickling → passivation → wheel products.Often walk
Multiple tracks washing step is provided with after process.
It is useless that wheel hub production waste water generally will produce the useless tank liquor of a small amount of cutting, the useless tank liquor of degreasing, the useless tank liquor of pickling and passivation
The washing waste water of the hc effluents such as tank liquor and a large amount of low concentration, hc effluent also contain in addition to containing a large amount of inorganic salts
Organic matter and mass fraction are not less than 5% total dissolved solid object (TDS).Currently, hc effluent is blended by most enterprises
It is handled into washing waste water, then with coagulating sedimentation and biochemistry combination process.But the pollutant kind of hc effluent is complicated
And concentration is higher, conventional treatment process coagulating sedimentation has limitation with biochemistry combination process to the removal of its pollutant, it is difficult to
Stably reach higher removal rate.And hc effluent is mixed into washing waste water and is handled, wastewater treatment difficulty is increased,
The difficulty for increasing washing waste water treatment for reuse simultaneously, fails to achieve the effect that energy-saving and emission-reduction.Therefore, there is an urgent need for a kind of stabilization and economy
Effective wheel hub production wastewater treatment system and technique.
Invention content
The purpose of the present invention is to provide processing systems and technique that a kind of wheel hub produces waste water, by hc effluent and washing
Waste water is handled to emission request, and makes washing waste water after treatment being capable of reuse.
For this purpose, the present invention uses following technical scheme:
A kind of processing system of wheel hub production waste water, include for handle the washing waste water processing subsystem of washing waste water and
High load wastewater treatment subsystem for handling hc effluent;
The washing waste water processing subsystem includes sequentially connected washing pH regulating reservoirs, washing coagulative precipitation tank, washing
Filter element and washing film separation unit;The water outlet of the washing film separation unit includes concentrated water outlet and water outlet, institute
It states water outlet and is connected with reuse unit;
The high load wastewater treatment subsystem includes sequentially connected highly concentrated homogeneous pond, highly concentrated pH regulating reservoirs and highly concentrated coagulation
Sedimentation basin, the concentrated water outlet connect the water inlet in the highly concentrated homogeneous pond.
Optionally, the washing waste water includes cutting fluid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation
Clean at least one of waste water;The hc effluent includes washing waste water concentrated water part, cuts give up tank liquor and the useless tank liquor of degreasing,
The hc effluent further includes at least one of the useless tank liquor of pickling and the useless tank liquor of passivation.
The processing system further includes the useless tank liquor pretreatment unit of cutting and the useless tank liquor pretreatment unit of degreasing, the cutting
The water outlet of useless tank liquor pretreatment unit and the useless tank liquor pretreatment unit of the degreasing is all connected with the water inlet in the highly concentrated homogeneous pond
Mouthful.
Optionally, the water inlet of the washing pH regulating reservoirs is also associated with washing homogeneous pond;
The washing filtering unit includes sequentially connected sand filter and cartridge filter, the water outlet of the cartridge filter
The water inlet of the mouth connection washing film separation unit;
The water outlet of the washing coagulative precipitation tank is also associated with intermediate pool, and the water outlet of the intermediate pool connects institute
State the water inlet of sand filter.
Optionally, the washing film separation unit includes sequentially connected ultrafiltration buffer pool, ultrafiltration membrane group, reverse osmosis buffering
Pond and reverse osmosis membrane group;The water outlet of the cartridge filter connects the water inlet of the ultrafiltration buffer pool;The reverse osmosis membrane
The water outlet of group includes the water outlet and concentrated water outlet.
Optionally, the highly concentrated oxidation unit includes sequentially connected Fenton's reaction pond, UV reactive device and ultraviolet water outlet
Scratch pool;The water outlet of the highly concentrated pH regulating reservoirs connects the water inlet in the Fenton's reaction pond, the ultraviolet water outlet scratch pool
Water outlet connect the water inlet of the highly concentrated coagulative precipitation tank;The water outlet of the highly concentrated coagulative precipitation tank is also associated with carbon filter
Device.
Optionally, it is described cutting give up tank liquor pretreatment unit include sequentially connected cutting homogeneous pond, be demulsified reactor and
Oil water separator, the water outlet of the oil water separator connect the water inlet in the highly concentrated homogeneous pond;
The degreasing tank liquor pretreatment unit that gives up includes sequentially connected degreasing homogeneous pond and degreasing coagulative precipitation tank, described
The water outlet of degreasing coagulative precipitation tank connects the water inlet in the highly concentrated homogeneous pond.
A kind for the treatment of process of wheel hub production waste water, includes the washing waste water treatment process and use for handling washing waste water
In the high load wastewater treatment technique of processing hc effluent;
The washing waste water treatment process includes the following steps:
Washing waste water homogeneous:Homogenization is carried out to washing waste water;
Washing waste water pH is adjusted:The pH of washing waste water after homogeneous is adjusted to washing waste water pH preset values;
Washing waste water precipitates:Flocculant is added in washing waste water after being adjusted to pH and carries out coagulating sedimentation;
Washing waste water filters:Washing waste water after coagulating sedimentation is filtered by filter;
Washing waste water UF membrane:Filtered washing waste water is detached by seperation film, obtains washing waste water fresh water
Part and washing waste water concentrated water part;Washing waste water fresh water part is as washing water reuse, washing waste water concentrated water portion
Divide and is handled into the high load wastewater treatment technique;
The high load wastewater treatment technique includes the following steps:
Hc effluent homogeneous:Homogenization is carried out to hc effluent;The hc effluent includes the washing waste water concentrated water
Part;
Hc effluent pH is adjusted:The pH of hc effluent after homogeneous is adjusted to hc effluent pH preset values;
Hc effluent aoxidizes:The organic pollution in hc effluent after pH is adjusted is degraded by oxidation reaction;
Hc effluent precipitates:Flocculant is added into the hc effluent after oxidation and carries out coagulating sedimentation.
Optionally, the washing waste water includes cutting fluid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation
Clean at least one of waste water;The hc effluent includes the useless tank liquor of cutting, the useless tank liquor of degreasing and the washing waste water concentrated water
Part, the hc effluent further include at least one of the useless tank liquor of pickling and the useless tank liquor of passivation;
The cutting gives up the tank liquor progress hc effluent homogenizing step before also by cutting the tank liquor pretreating process that gives up
Processing, the useless tank liquor pretreating process of cutting include the following steps:
The useless tank liquor homogeneous of cutting:Homogenization is carried out to cutting the tank liquor that gives up;
Demulsification reaction:So that the tank liquor that gives up of the cutting after homogeneous is detached from stable emulsion state, formed mutual exclusive water phase and
Oil phase;
Water-oil separating:By the oil phase and aqueous phase separation of the useless tank liquor of cutting after demulsification;The water phase of the useless tank liquor of cutting is as institute
It states hc effluent and carries out homogeneous into the hc effluent homogenizing step;
The degreasing gives up before tank liquor carries out the hc effluent homogenizing step and is also given up tank liquor pretreating process by degreasing
Processing, the useless tank liquor pretreating process of the degreasing include the following steps:
The useless tank liquor homogeneous of degreasing:To degreasing give up tank liquor carry out homogenization;
The useless tank liquor precipitation of degreasing:Flocculant is added in giving up tank liquor to the degreasing after homogeneous and carries out coagulating sedimentation;Coagulating sedimentation
The useless tank liquor of degreasing afterwards enters the hc effluent homogenizing step as the hc effluent and carries out homogeneous.
Optionally, the washing waste water pH preset values are 7.5-8.5;
The washing waste water settling step, specially:Polyacrylamide is added in washing waste water after being adjusted to pH and gathers
It closes aluminium chloride and carries out coagulating sedimentation;
The washing waste water filtration step, specially:Washing waste water after coagulating sedimentation is passed sequentially through into sand filter and guarantor
Peace filter is filtered;
The washing waste water UF membrane step, specially:Filtered washing waste water is passed sequentially through into ultrafiltration membrane group and anti-
Permeable membrane group carries out UF membrane, obtains washing waste water fresh water part and washing waste water concentrated water part.
Optionally, the hc effluent pH preset values are 3.0-3.5;
The hc effluent oxidation step, specially:Hydrogen peroxide and divalent is added into the hc effluent after adjusting pH
Iron ion carries out Fenton's reaction, degradable organic pollution in hc effluent of degrading;Hc effluent is sent into UV reactive again
Hydrogen peroxide is added into hc effluent for device, organic dirt difficult to degrade of being degraded using the synergy of ultraviolet light and hydrogen peroxide
Contaminate object;
The hc effluent settling step, specially:Into the hc effluent after oxidative degradation be added polyacrylamide and
Aluminium polychloride carries out coagulating sedimentation;
Further include a step after the hc effluent settling step:
Hc effluent filters:Hc effluent after coagulating sedimentation is filtered by carbon filter.
Compared with prior art, the embodiment of the present invention has the advantages that:
The processing system and technique of wheel hub production waste water provided by the invention, hc effluent and washing waste water are separately located
Reason, washing waste water is after the processing of washing waste water processing subsystem, washing waste water fresh water part reuse to production line, washing waste water
Concentrated water part enters high load wastewater treatment subsystem and other useless tank liquors are handled as hc effluent together, and it is high that treated
The water quality index of density wastewater reaches discharge standard.The processing system and technique of wheel hub production waste water provided by the invention, Neng Goujian
It is easily linked in existing production technology, reduces processing cost, while improving treatment effect stability.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram for the processing system that the wheel hub that the embodiment of the present invention one provides produces waste water.
It illustrates:10, washing homogeneous pond;11, pH regulating reservoirs are washed;12, coagulative precipitation tank is washed;13, intermediate pool;
14, sand filter;15, cartridge filter;16, ultrafiltration buffer pool;17, ultrafiltration membrane group;18, reverse osmosis buffer pool;19, reverse osmosis membrane
Group;20, reuse unit;30, highly concentrated homogeneous pond;31, highly concentrated pH regulating reservoirs;32, Fenton's reaction pond;33, UV reactive device;34,
Ultraviolet water outlet scratch pool;35, highly concentrated coagulative precipitation tank;36, carbon filter;37, exhaust unit;40, cutting homogeneous pond;41, it is demulsified
Reactor;42, oil water separator;50, degreasing homogeneous pond;51, degreasing coagulative precipitation tank;60, sludge treating block;70, waste oil
Processing unit.
Specific implementation mode
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
All other embodiment that those of ordinary skill is obtained without making creative work, belongs to protection of the present invention
Range.
In the description of the present invention, it is to be understood that, the instructions such as term "upper", "lower", "top", "bottom", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.It should be noted that when a component is considered as " connection " another component,
It can be directly to another component or may be simultaneously present the component being centrally located.
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
The present invention provides processing systems and technique that a kind of wheel hub produces waste water, and wheel hub can be produced to the wash water in waste water
Treatment for reuse, and by the part of the non-reuse of wash water and high concentration tank liquor mixed processing.
Embodiment one
Referring to FIG. 1, the processing system of wheel hub production waste water provided in this embodiment, includes for handling washing waste water
Washing waste water processing subsystem and high load wastewater treatment subsystem for handling hc effluent.
Washing waste water processing subsystem includes sequentially connected washing pH regulating reservoirs 11, washing coagulative precipitation tank 12, washing
Filter element and washing film separation unit.The water outlet of washing film separation unit includes that concentrated water outlet and water outlet, fresh water go out
Mouth connection reuse unit 20.
High load wastewater treatment subsystem includes sequentially connected highly concentrated homogeneous pond 30, highly concentrated pH regulating reservoirs 31, highly concentrated oxidation
Unit and highly concentrated coagulative precipitation tank 35.The concentrated water outlet for washing film separation unit connects the water inlet in highly concentrated homogeneous pond 30.
Specifically, washing waste water includes cutting fluid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation cleaning
Waste water.Washing waste water processing subsystem further includes washing homogeneous pond 10, and the various cleaning waste water for workshop to be discharged carry out equal
Matter processing.
Wash the water inlet of the water outlet connection washing pH regulating reservoirs 11 in homogeneous pond 10.PH regulating reservoirs 11 are washed to be used for water
The pH for washing waste water is adjusted to 7.5-8.5, is convenient for subsequent reactions.Washing waste water originally is generally acidity, and pH adjustment processes use
The mode that piece alkali is added carries out.
Wash the water inlet of the water outlet connection washing coagulative precipitation tank 12 of pH regulating reservoirs 11.To washing coagulative precipitation tank 12
In washing waste water be added flocculant, make the solid suspension in washing waste water polymerize to form floccule body and precipitate.Flocculant selects
With polyacrylamide and aluminium polychloride.
The water inlet of the water outlet connection intermediate pool 13 of coagulative precipitation tank 12 is washed, washing waste water is by coagulating sedimentation
Production water enters intermediate pool 13 from water outlet, and intermediate pool 13 is for buffering.The sludge mouth connection for washing coagulative precipitation tank 12 is dirty
Mud processing unit 60, the sludge that washing waste water is formed through coagulating sedimentation enter sludge treating block 60 from sludge mouth.Treatment of Sludge
Unit 60 includes filter press.
Washing filtering unit includes sequentially connected sand filter 14 and cartridge filter 15.The water outlet of intermediate pool 13 connects
Connect the water inlet of sand filter 14, the water inlet of the water outlet connection washing film separation unit of cartridge filter 15.Sand filter 14 is used
In removing the solid suspension not eliminated in coagulation-settlement process, microorganism and other subparticles, washing waste water is reduced
Turbidity is convenient for the operation of subsequent technique.Cartridge filter 15 is for removing small suspended matter, the bacterium that sand filter 14 can not remove
And other impurities, so that the water quality of washing waste water is reached the inflow requirement of ultrafiltration membrane.
It includes sequentially connected ultrafiltration buffer pool 16 and ultrafiltration membrane group 17 to wash film separation unit, and cartridge filter 15 goes out
The mouth of a river connects the water inlet of ultrafiltration buffer pool 16.Ultrafiltration membrane group 17 is used to remove bacterium, iron rust and the colloid etc. in washing waste water
Harmful substance.Ultrafiltration membrane group 17 further reduced the turbidity and pollution index of washing waste water so that the water quality of washing waste water reaches
To the inflow requirement of reverse osmosis membrane, shield to the normal work of reverse osmosis membrane as reverse osmosis pre-treatment step.
It further includes sequentially connected reverse osmosis buffer pool 18 and reverse osmosis membrane group 19 to wash film separation unit.Ultrafiltration membrane group 17
Water outlet connect the water inlet of reverse osmosis buffer pool 18.The water outlet of reverse osmosis membrane group 19 includes that water outlet and concentrated water go out
Mouthful, water outlet connects reuse unit 20, and concentrated water outlet connects the water inlet in highly concentrated homogeneous pond 30.
Factory is entered by reuse unit 20 through the washing waste water fresh water part of reverse osmosis membrane group 19, is made as washing water
With.The part that washing waste water does not penetrate reverse osmosis membrane group 19 loses fresh water and is condensed to as concentrated water, into high load wastewater treatment
System carries out subsequent processing.
Hc effluent further includes the useless tank liquor of cutting, the useless tank liquor of degreasing, the useless tank liquor of pickling other than washing waste water concentrated water part
With the useless tank liquor of passivation.
Highly concentrated homogeneous pond 30 be used for washing waste water concentrated water part, cutting give up tank liquor, degreasing give up tank liquor, pickling give up tank liquor and
The useless tank liquor of passivation carries out homogenization.
The water outlet in highly concentrated homogeneous pond 30 connects the water inlet of highly concentrated pH regulating reservoirs 31.Into the height of highly concentrated pH regulating reservoirs 31
Density wastewater pH is less than 1, and by the way that piece alkali (technical grade, 96%) is added, the water outlet pH for controlling highly concentrated pH regulating reservoirs 31 is 3.0-3.5,
The pH is suitble to subsequent oxidation reaction.
Highly concentrated oxidation unit includes Fenton's reaction pond 32, the water outlet connection Fenton's reaction pond 32 of highly concentrated pH regulating reservoirs 31
Water inlet.In Fenton's reaction pond 32, hydrogen peroxide is added to hc effluent and ferrous ion carries out Fenton's reaction, makes organic
Contaminant degradation, to remove removal organic polluter.Specifically, to hc effluent be added 4000ppm hydrogen peroxide (technical grade,
27.5%) and the ferrous sulfate heptahydrate of 3000ppm carries out Fenton's reaction, and the Fenton's reaction residence time is 120-150min.
The water inlet of the water outlet connection UV reactive device 33 in Fenton's reaction pond 32, the water outlet connection of UV reactive device 33
The water inlet of ultraviolet water outlet scratch pool 34.UV reactive device 33 carries out sterilizing to hc effluent, in UV reactive device 33,
Hydrogen peroxide is added into hc effluent, is further degraded by the photochemical oxidation effect of the hydrogen peroxide of ultraviolet light sum organic
Pollutant, further to remove organic pollution difficult to degrade.Specifically, be added 3500ppm hydrogen peroxide (technical grade,
27.5%).
The water outlet of ultraviolet water outlet scratch pool 34 connects the water inlet of highly concentrated coagulative precipitation tank 35.Highly concentrated coagulative precipitation tank 35
For removing fixed suspended matter, flocculant selects polyacrylamide and aluminium polychloride.The water outlet of highly concentrated coagulative precipitation tank 35
Carbon filter 36 is connected, the sludge mouth of highly concentrated coagulative precipitation tank 35 connects sludge treating block 60.
The water inlet of the water outlet connection carbon filter 36 of highly concentrated coagulative precipitation tank 35, carbon filter 36 is for removing above-mentioned waste water
During treatment process, possible interference causes some organic pollutants for failing removal, ensures that stable water outlet reaches discharge mark
It is accurate.The water outlet of carbon filter 36 connects exhaust unit 37, and exhaust unit 37 is up to the hc effluent discharge of discharge standard.
Processing system further includes that cutting is given up tank liquor pretreatment unit, and it is more to cut contained grease in giving up tank liquor, with other
First the grease in the useless tank liquor of cutting is removed before hc effluent homogeneous.The useless tank liquor pretreatment unit of cutting includes sequentially connected cuts
It cuts homogeneous pond 40, demulsification reactor 41 and oil water separator 42, the water outlet of oil water separator 42 and connects highly concentrated homogeneous pond 30
Water inlet, the oil outlet connection waste oil disposal unit 70 of oil water separator 42.Demulsification reactor 41 makes cutting give up tank liquor disengaging surely
Fixed emulsion state forms incompatible water phase and oil phase, is convenient for subsequent water-oil separation.
Processing system further includes the useless tank liquor pretreatment unit of degreasing, and the useless tank liquor pretreatment unit of degreasing includes sequentially connected
Degreasing homogeneous pond 50 and degreasing coagulative precipitation tank 51, the water outlet of degreasing coagulative precipitation tank 51 connect the water inlet in highly concentrated homogeneous pond 30
Mouthful.Since the degreasing tank liquor that gives up belongs to high-concentration waste liquid, pollutant kind is complicated and very high concentrations, independent coagulating sedimentation pretreatment
There can be 30% or so removal rate.If degreasing is given up, tank liquor is not preprocessed is directly mixed in highly concentrated homogeneous pond 30, and degreasing is given up slot
Pollutant in liquid is possible to react with other pollutants in highly concentrated homogeneous pond 30, leads to the pollution in hc effluent
Species are increasingly complex, are unfavorable for subsequent processing.
The present embodiment provides the treatment process that wheel hub produces waste water, including:At washing waste water treatment process and hc effluent
Science and engineering skill, washing waste water are converted into washing waste water fresh water part and washing waste water concentrated water part by washing waste water treatment process,
Washing waste water fresh water part enters high load wastewater treatment process as washing water reuse, washing waste water concentrated water part.
Washing waste water treatment process includes the following steps:
Washing waste water homogeneous:To cutting fluid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation cleaning waste water
Carry out homogenization.
Washing waste water pH is adjusted:Washing waste water after homogeneous piece alkali is adjusted into pH to 7.5-8.5.
Washing waste water precipitates:Polyacrylamide is added in washing waste water after being adjusted to pH and aluminium polychloride carries out coagulation
Precipitation obtains production water and production mud, and production water carries out next step, and production sludge is handled by sludge treatment technique.
Washing waste water filters:Washing waste water after coagulating sedimentation is passed sequentially through into sand filter 14 and cartridge filter 15 carries out
Filtering.
Washing waste water UF membrane:Filtered washing waste water is passed sequentially through into ultrafiltration membrane group 17 and reverse osmosis membrane group 19 carries out
UF membrane, the washing waste water fresh water part that reverse osmosis membrane group 19 detaches enter as washing water reuse, washing waste water concentrated water part
High load wastewater treatment technique.
High load wastewater treatment technique includes the following steps:
Hc effluent homogeneous:It gives up tank liquor and blunt to washing waste water concentrated water part, cutting give up tank liquor, pickling of tank liquor, degreasing of giving up
Change the tank liquor that gives up and carries out homogenization.
Hc effluent pH is adjusted:Hc effluent after homogeneous piece alkali is adjusted into pH to 3.0-3.5.
Hc effluent aoxidizes:Hydrogen peroxide is added into the hc effluent after adjusting pH and ferrous ion progress Fenton is anti-
It answers, degradable organic pollution in hc effluent of degrading;Hc effluent is sent into UV reactive device 33 again, into hc effluent
Hydrogen peroxide, organic pollution difficult to degrade of degrading using the synergy of ultraviolet light and hydrogen peroxide is added.
Hc effluent precipitates:Polyacrylamide is added into the hc effluent after oxidative degradation and aluminium polychloride is mixed
Retrogradation is formed sediment, and the production water of coagulating sedimentation carries out next step, and the sludge of coagulating sedimentation output is handled by sludge treatment technique.
Hc effluent filters:Hc effluent after coagulating sedimentation is filtered by carbon filter 36, the production of carbon filter 36
Water reaches standard of drainage, is discharged.
The useless tank liquor of cutting, also by the useless tank liquor pretreating process processing of cutting, is cut before entering high load wastewater treatment technique
Useless tank liquor pretreating process is cut to include the following steps:
The useless tank liquor homogeneous of cutting:Homogenization is carried out to cutting the tank liquor that gives up.
Demulsification reaction:So that the tank liquor that gives up of the cutting after homogeneous is detached from stable emulsion state, formed mutual exclusive water phase and
Oil phase.
Water-oil separating:By the oil phase and aqueous phase separation of the useless tank liquor of cutting after demulsification, water phase enters high load wastewater treatment work
Skill is handled, and oil phase enters waste oil disposal technique and handled.
Degreasing give up tank liquor enter high load wastewater treatment technique before also by degreasing give up tank liquor pretreating process processing, take off
The useless tank liquor pretreating process of fat includes the following steps:
The useless tank liquor homogeneous of degreasing:To degreasing give up tank liquor carry out homogenization.
The useless tank liquor precipitation of degreasing:Flocculant is added in giving up tank liquor to the degreasing after homogeneous and carries out coagulating sedimentation, coagulating sedimentation
Production water enter hc effluent homogenizing step as hc effluent and carry out homogeneous, the sludge of coagulating sedimentation output passes through Treatment of Sludge
Process.
The processing system and technique of wheel hub production waste water provided in this embodiment, high-concentration waste tank liquor and low concentration are washed
Waste water is separately handled, and washing waste water is after the processing of washing waste water processing subsystem, washing waste water fresh water part reuse to production
Line, washing waste water concentrated water part enter high load wastewater treatment subsystem and other high-concentration waste tank liquors and are used as hc effluent together
It is handled, the water quality index of treated hc effluent reaches"Integrated wastewater discharge standard"(GB8978-1996) three-level mark
It is accurate.The processing system and technique of wheel hub production waste water provided in this embodiment, can simply be linked in existing production technology, drop
Low processing cost, while improving treatment effect stability.
Embodiment two
Embodiment two is used as subjects by choosing Shandong Binzhou wheel hub production waste water, to wheel hub provided by the invention
The effect of the processing system and technique that produce waste water illustrates.
The water quality of washing waste water and hc effluent such as following table:
Cutting fluid cleans waste water, cleaning by degreasing waste water, pickling waste water and passivation cleaning waste water by washing homogeneous pond
After 10 homogeneous, it is pumped to washing pH regulating reservoirs 11.The COD of washing waste water is 300-400mg/L before pH is adjusted, and PH is in 3.0-
Between 4.0, conductivity 2000-2500us/cm.Piece alkali (technical grade, 96%) is added into washing waste water, controls washing waste water
PH be 7.5-8.5.Later by washing waste water be sent into washing coagulative precipitation tank 12, into washing waste water be added polyacrylamide and
Aluminium polychloride, reaction time 40min.The production water of coagulating sedimentation passes sequentially through sand filter 14, cartridge filter 15, ultrafiltration
Buffer pool 16, ultrafiltration membrane group 17, reverse osmosis buffer pool 18 and reverse osmosis membrane group 19, the washing waste water that reverse osmosis membrane group 19 detaches are light
Water section is sent into reuse unit 20 and washing water reuse, the washing waste water concentrated water part that reverse osmosis membrane group 19 detaches is used as to be sent into highly concentrated
Homogeneous pond 30.
The useless tank liquor of cutting passes sequentially through cutting homogeneous pond 40, demulsification reactor 41 and oil water separator 42, oil water separator
The water phase of the useless tank liquor of cutting of 42 separation is sent into highly concentrated homogeneous pond 30.The COD of the useless tank liquor water phase of the cutting is 15600mg/L, pH
Between 2.0-3.0, conductivity 20000-25000us/cm.
The useless tank liquor of degreasing passes sequentially through degreasing homogeneous pond 50 and degreasing coagulative precipitation tank 51, the production of degreasing coagulative precipitation tank 51
Water is sent into highly concentrated homogeneous pond 30, and the COD of the production water is 14000mg/L, pH between 8.0-8.5, conductivity 15000-
20000us/cm。
Highly concentrated pH regulating reservoirs 31 are pumped to by the hc effluent after highly concentrated 30 homogeneous of homogeneous pond, it is highly concentrated useless before pH adjustings
The COD of water is that 5000-8000mg/L is not waited, PH is less than 1, conductivity 15000-22000us/cm;To highly concentrated pH regulating reservoirs 31
In hc effluent be added piece alkali (technical grade, 96%), control hc effluent pH be 3.0-3.5.It is adjusted by pH highly concentrated
Waste water enters Fenton's reaction pond 32, and the hydrogen peroxide (technical grade, 27.5%) and 3000ppm of 4000ppm are added to hc effluent
Ferrous sulfate heptahydrate, reaction time 120-150min.It is pumped to by the hc effluent in Fenton's reaction pond 32 ultraviolet
The hydrogen peroxide (technical grade, 27.5%) of 3500ppm is added to hc effluent for reactor 33.By Fenton's reaction oxidation and purple
The hc effluent that photochemical oxidation is combined in outside line, hydrogen peroxide is sent into highly concentrated coagulative precipitation tank 35, and hc effluent is in highly concentrated coagulation
Residence time in sedimentation basin 35 is 2.0h.The production water COD of the water outlet of highly concentrated coagulative precipitation tank 35 is 300mg/L, highly concentrated mixed
The sludge pumping of the sludge mouth output of solidifying sedimentation basin 35 is to sludge treating system, every liter of wastewater sludge production after handling in this example
Amount is 18.1-18.6g (moisture content about 80%).The water of the water outlet outflow of highly concentrated coagulative precipitation tank 35 is discharged.
Wheel hub produces the following table of quality inspection measured data of waste water water after processing system is handled:
Wheel hub is can be seen that by the data of upper table and produces waste water after processing system is handled, and water quality index reaches"Sewage
Comprehensive discharge standard"(GB8978-1996) grade III Standard.
Embodiment two further illustrates processing system and technique provided by the invention to wheel by specific test data
Hub produces the good treatment effect of waste water.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features;And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of processing system of wheel hub production waste water, which is characterized in that include for handling at the washing waste water of washing waste water
Manage subsystem and the high load wastewater treatment subsystem for handling hc effluent;
The washing waste water processing subsystem includes sequentially connected washing pH regulating reservoirs, washing coagulative precipitation tank, washing filtering
Unit and washing film separation unit;It is described washing film separation unit water outlet include concentrated water outlet and water outlet, it is described light
Water out is connected with reuse unit;
The high load wastewater treatment subsystem includes sequentially connected highly concentrated homogeneous pond, highly concentrated pH regulating reservoirs and highly concentrated coagulating sedimentation
Pond, the concentrated water outlet connect the water inlet in the highly concentrated homogeneous pond.
2. the processing system of wheel hub production waste water according to claim 1, which is characterized in that the washing waste water includes cutting
Cut at least one of liquid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation cleaning waste water;The hc effluent
It gives up tank liquor including give up tank liquor and degreasing of washing waste water concentrated water part, cutting, the hc effluent further includes that pickling is given up tank liquor and blunt
Change at least one of the tank liquor that gives up.
The processing system further includes the useless tank liquor pretreatment unit of cutting and the useless tank liquor pretreatment unit of degreasing, the useless slot of cutting
The water outlet of liquid pretreatment unit and the useless tank liquor pretreatment unit of the degreasing is all connected with the water inlet in the highly concentrated homogeneous pond.
3. the processing system of wheel hub production waste water according to claim 1, which is characterized in that the washing pH regulating reservoirs
Water inlet is also associated with washing homogeneous pond;
The washing filtering unit includes sequentially connected sand filter and cartridge filter, and the water outlet of the cartridge filter connects
Connect the water inlet of the washing film separation unit;
The water outlet of the washing coagulative precipitation tank is also associated with intermediate pool, and the water outlet of the intermediate pool connects the sand
The water inlet of filter.
4. the processing system of wheel hub production waste water according to claim 3, which is characterized in that the washing film separation unit
Including sequentially connected ultrafiltration buffer pool, ultrafiltration membrane group, reverse osmosis buffer pool and reverse osmosis membrane group;The cartridge filter goes out
The mouth of a river connects the water inlet of the ultrafiltration buffer pool;The water outlet of the reverse osmosis membrane group includes the water outlet and described dense
Water out.
5. the processing system of wheel hub production waste water according to claim 1, which is characterized in that the highly concentrated oxidation unit packet
Include sequentially connected Fenton's reaction pond, UV reactive device and ultraviolet water outlet scratch pool;The water outlet of the highly concentrated pH regulating reservoirs connects
Connect the water inlet in the Fenton's reaction pond, the water outlet of the ultraviolet water outlet scratch pool connect the highly concentrated coagulative precipitation tank into
The mouth of a river;The water outlet of the highly concentrated coagulative precipitation tank is also associated with carbon filter.
6. the processing system of wheel hub production waste water according to claim 2, which is characterized in that the useless tank liquor of cutting is located in advance
Reason unit includes sequentially connected cutting homogeneous pond, demulsification reactor and oil water separator, the water outlet of the oil water separator
Connect the water inlet in the highly concentrated homogeneous pond;
The useless tank liquor pretreatment unit of the degreasing includes sequentially connected degreasing homogeneous pond and degreasing coagulative precipitation tank, the degreasing
The water outlet of coagulative precipitation tank connects the water inlet in the highly concentrated homogeneous pond.
7. a kind for the treatment of process of wheel hub production waste water, which is characterized in that include for handling at the washing waste water of washing waste water
Science and engineering skill and high load wastewater treatment technique for handling hc effluent;
The washing waste water treatment process includes the following steps:
Washing waste water homogeneous:Homogenization is carried out to washing waste water;
Washing waste water pH is adjusted:The pH of washing waste water after homogeneous is adjusted to washing waste water pH preset values;
Washing waste water precipitates:Flocculant is added in washing waste water after being adjusted to pH and carries out coagulating sedimentation;
Washing waste water filters:Washing waste water after coagulating sedimentation is filtered by filter;
Washing waste water UF membrane:Filtered washing waste water is detached by seperation film, obtains washing waste water fresh water part
With washing waste water concentrated water part;Washing waste water fresh water part as washing water reuse, washing waste water concentrated water part into
Enter the high load wastewater treatment technique to be handled;
The high load wastewater treatment technique includes the following steps:
Hc effluent homogeneous:Homogenization is carried out to hc effluent;The hc effluent includes washing waste water concentrated water part;
Hc effluent pH is adjusted:The pH of hc effluent after homogeneous is adjusted to hc effluent pH preset values;
Hc effluent aoxidizes:The organic pollution in hc effluent after pH is adjusted is degraded by oxidation reaction;
Hc effluent precipitates:Flocculant is added into the hc effluent after oxidation and carries out coagulating sedimentation.
8. the treatment process of wheel hub production waste water according to claim 7, it is characterised in that
The washing waste water includes in cutting fluid cleaning waste water, cleaning by degreasing waste water, pickling waste water and passivation cleaning waste water
At least one;The hc effluent includes the useless tank liquor of cutting, the useless tank liquor of degreasing and washing waste water concentrated water part, the height
Density wastewater further includes at least one of the useless tank liquor of pickling and the useless tank liquor of passivation;
The useless tank liquor of cutting is also handled by cutting the tank liquor pretreating process that gives up before carrying out the hc effluent homogenizing step,
The useless tank liquor pretreating process of cutting includes the following steps:
The useless tank liquor homogeneous of cutting:Homogenization is carried out to cutting the tank liquor that gives up;
Demulsification reaction:So that the useless tank liquor of the cutting after homogeneous is detached from stable emulsion state, forms mutual exclusive water phase and oil phase;
Water-oil separating:By the oil phase and aqueous phase separation of the useless tank liquor of cutting after demulsification;The water phase of the useless tank liquor of cutting is as the height
Density wastewater enters the hc effluent homogenizing step and carries out homogeneous;
The degreasing gives up before tank liquor carries out the hc effluent homogenizing step and is also given up the processing of tank liquor pretreating process by degreasing,
The useless tank liquor pretreating process of the degreasing includes the following steps:
The useless tank liquor homogeneous of degreasing:To degreasing give up tank liquor carry out homogenization;
The useless tank liquor precipitation of degreasing:Flocculant is added in giving up tank liquor to the degreasing after homogeneous and carries out coagulating sedimentation;After coagulating sedimentation
The useless tank liquor of degreasing enters the hc effluent homogenizing step as the hc effluent and carries out homogeneous.
9. the treatment process of wheel hub production waste water according to claim 7, which is characterized in that the washing waste water pH is default
Value is 7.5-8.5;
The washing waste water settling step, specially:Polyacrylamide and polymerization chlorine are added in washing waste water after being adjusted to pH
Change aluminium and carries out coagulating sedimentation;
The washing waste water filtration step, specially:Washing waste water after coagulating sedimentation is passed sequentially through into sand filter and was ensured public security
Filter is filtered;
The washing waste water UF membrane step, specially:Filtered washing waste water is passed sequentially through into ultrafiltration membrane group and reverse osmosis
Film group carries out UF membrane, obtains washing waste water fresh water part and washing waste water concentrated water part.
10. the treatment process of wheel hub production waste water according to claim 7, which is characterized in that the hc effluent pH is pre-
If value is 3.0-3.5;
The hc effluent oxidation step, specially:To adjust be added in the hc effluent after pH hydrogen peroxide and ferrous iron from
Son carries out Fenton's reaction, degradable organic pollution in hc effluent of degrading;Hc effluent is sent into UV reactive device again, to
Hydrogen peroxide is added in hc effluent, organic pollution difficult to degrade of degrading using the synergy of ultraviolet light and hydrogen peroxide;
The hc effluent settling step, specially:Polyacrylamide and polymerization are added into the hc effluent after oxidative degradation
Aluminium chloride carries out coagulating sedimentation;
Further include a step after the hc effluent settling step:
Hc effluent filters:Hc effluent after coagulating sedimentation is filtered by carbon filter.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101734815A (en) * | 2009-12-23 | 2010-06-16 | 苏州市环境工程有限责任公司 | Electronic electroplating wastewater recycling advanced treatment technology |
| CN105776670A (en) * | 2016-05-10 | 2016-07-20 | 路林茫 | Wastewater split-flow separation and quality-based treatment utilization process method |
| CN107098518A (en) * | 2017-04-21 | 2017-08-29 | 深圳市深投环保科技有限公司 | The processing method and processing system of chemical nickle-plating wastewater |
| CN208717062U (en) * | 2018-08-02 | 2019-04-09 | 东莞道汇环保科技股份有限公司 | A treatment system for waste water from wheel hub production |
-
2018
- 2018-08-02 CN CN201810872913.0A patent/CN108689537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734815A (en) * | 2009-12-23 | 2010-06-16 | 苏州市环境工程有限责任公司 | Electronic electroplating wastewater recycling advanced treatment technology |
| CN105776670A (en) * | 2016-05-10 | 2016-07-20 | 路林茫 | Wastewater split-flow separation and quality-based treatment utilization process method |
| CN107098518A (en) * | 2017-04-21 | 2017-08-29 | 深圳市深投环保科技有限公司 | The processing method and processing system of chemical nickle-plating wastewater |
| CN208717062U (en) * | 2018-08-02 | 2019-04-09 | 东莞道汇环保科技股份有限公司 | A treatment system for waste water from wheel hub production |
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