CN109399837A - A kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates - Google Patents
A kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates Download PDFInfo
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- CN109399837A CN109399837A CN201811515579.XA CN201811515579A CN109399837A CN 109399837 A CN109399837 A CN 109399837A CN 201811515579 A CN201811515579 A CN 201811515579A CN 109399837 A CN109399837 A CN 109399837A
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- China
- Prior art keywords
- wastewater treatment
- anodized surface
- surface processing
- generates
- chromium triangle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910018487 Ni—Cr Inorganic materials 0.000 title claims abstract description 28
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 28
- 238000009418 renovation Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 23
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 230000003750 conditioning effect Effects 0.000 claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 14
- 239000011651 chromium Substances 0.000 claims abstract description 14
- 238000005342 ion exchange Methods 0.000 claims abstract description 14
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 claims abstract description 10
- 238000005189 flocculation Methods 0.000 claims abstract description 10
- 230000016615 flocculation Effects 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 229910001430 chromium ion Inorganic materials 0.000 claims abstract description 7
- 239000010786 composite waste Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 238000011282 treatment Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229910001453 nickel ion Inorganic materials 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000004043 dyeing Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- 230000005518 electrochemistry Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
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)
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The present invention discloses a kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates, it includes processing unit and reuse unit, the processing unit includes the catalytic multi-phase reactor being sequentially connected, first pH conditioning tank, advanced oxidation pond, 2nd pH conditioning tank, flocculation basin, sedimentation basin, filter and ion exchange system, the reuse unit includes concatenated RO system and DTRO system, the system uses electrochemistry, chemistry, the technology that ionic adsorption and UF membrane etc. combine, the nickel in nickeliferous sealing of hole waste liquid and chromium-containing dyeing waste water that can be effectively generated anodized surface processing without classification, chromium ion and organic pollutant removal, avoid the harm caused by the ecological environment of periphery of waste water outlet, and it can be realized the circulating and recovering of water resource, reduce processing difficulty and operating cost, it fully demonstrates Environmental benefit and economic benefit.
Description
Technical field
The present invention relates to industrial waste water treatments, and in particular to a kind of nickel chromium triangle that anodized surface processing generates
Wastewater treatment and renovation system.
Background technique
Industrial is usually to enable aluminum alloy to have better surface characteristic and glossiness, generally need to be by anodic oxidation
Reason.Typical anode oxidation surface processing process process includes: workpiece → pickling → alkali cleaning → polishing → anodic oxidation → dyeing
→ sealing of hole → drying → finished product, the every procedure front and back of production process is respectively provided with washing pool, for the workpiece Jing Guo each process
It is cleaned.Therefore, every procedure can generate waste liquid in a large amount of washing waste water and pond.Contain a large amount of oil in this kind of waste water
The harmful substances such as rouge, surfactant, total nitrogen, total phosphorus, dyestuff, heavy metal nickel, chromium lead to waste water COD, total nitrogen, total phosphorus concentration
It is high.The universal biodegradability of the waste water is poor, and coloration is high.
Conventional waste water treatment process be will produce classification of waste collect classification processing, common processing method have chemistry again
Method, electrolysis method, bioanalysis, ion-exchange etc..Aluminum component, which has to pass through dyeing processing, just has good decorative performance, now sun
The most commonly used is chemical staining in the oxidation film coloring technology of pole, which is adsorbed using the porosity and chemical activity of oxidation film layer
Various pigments and make oxidation film coloring.A series of dyeing processing generate a large amount of waste water containing heavy-metal stain, wherein most malicious with chromium
Property, it is also most difficult to handle.In addition, nickel salt type oxidation film sealant is largely used in anodic oxidation hole-sealing technology, in waste water
Nickel content is also very high.
To sum up, existing anodized surface processing waste water seriously leads to being largely lost for water resource and heavy metal resources.Separately
Outside, for the lesser anodized surface process for producing line of scale, classification processing undoubtedly increase treatment process complexity and
Enterprise operation cost.
Therefore, the prior art is up for further developing.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of nickel chromium triangle wastewater treatment that anodized surface processing generates
Reclaiming system.
For this purpose, the technical scheme adopted by the invention is as follows:
A kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates, wherein including processing unit and return
With unit, the processing unit includes catalytic multi-phase reactor, the first pH conditioning tank, advanced oxidation pond, the 2nd pH conditioning tank, wadding
Solidifying pond, sedimentation basin, filter and ion exchange system, the reuse unit include RO system and DTRO system, wherein described more
The water outlet of phase catalytic reaction device connects the water inlet connection of the first pH conditioning tank, the water outlet and height of the first pH conditioning tank
The water inlet connection of grade oxidation pond, the water outlet in the advanced oxidation pond connect with the water inlet of the 2nd pH conditioning tank, and described the
The water outlet of two pH conditioning tanks and the water inlet of flocculation basin connect, and the water outlet of the flocculation basin and the water inlet of sedimentation basin connect
It connects, the water inlet of the water outlet of the sedimentation basin and filter connects, the water outlet of the filter and ion exchange system
Water inlet connection, the water outlet of ion exchange system are sequentially connected RO system and DTRO system.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein the heterogeneous catalysis is anti-
Answer device using graphite plate as reactor anode and cathode.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein as reactor yin-yang
Granule electrode is filled between the graphite plate of pole, the granule electrode material is iron carbon particle.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein the advanced oxidation pond
Ferrous sulfate and hydrogen peroxide are added, Fenton oxidation reaction occurs.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein the ion exchange system
System is connected in series by nickel ion adsorption column and chromium ion adsorption column.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein enter treatment for reuse system
The nickel chromium triangle waste water of system first passes through nickeliferous, chromium composite waste collecting pit and collects, nickeliferous, chromium composite waste collecting pit the water outlet
It is connect with the water inlet of catalytic multi-phase reactor.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein RO system and DTRO system
System generates concentrate and is emitted into nickeliferous, chromium composite waste collecting pit in processing unit.
The nickel chromium triangle wastewater treatment and renovation system that the described anodized surface processing generates, wherein the RO system and
DTRO system reconnects recycle-water collecting pit after passing sequentially through pipeline connection.
The nickel chromium triangle wastewater treatment and renovation system that the anodized surface processing generates, wherein the precipitating bottom of pond portion
It is connect by pipeline with sludge dewatering equipment, is provided with pressure dredge pump in the sedimentation basin and sludge dewatering equipment connecting pipe.
The utility model has the advantages that
The present invention provides a kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates, and the system is using electricity
The technology that chemistry, chemistry, ionic adsorption and UF membrane etc. combine, can effectively be handled anodized surface without classification
Nickel, chromium ion and the organic pollutant removal in nickeliferous sealing of hole waste liquid and chromium-containing dyeing waste water generated, avoids waste water outlet
It is endangered caused by the ecological environment of periphery, and can be realized the circulating and recovering of water resource, reduce processing difficulty and operating cost,
Environmental benefit and economic benefit are fully demonstrated.
Detailed description of the invention
Fig. 1 is the treatment for reuse system pie graph that nickel waste water is electroplated in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
It should be noted that be expressed " being fixed on " another element when element, it can directly on the other element,
Or there may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it can be with
It is directly to another element or there may be one or more elements placed in the middle therebetween.Used in this specification
The orientation or position of the instructions such as term "vertical", "horizontal", "left" and "right", "upper", "lower", "inner", "outside", " bottom "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.In addition, invention described below difference is implemented
Technical characteristic involved in mode can be combined with each other as long as they do not conflict with each other.
The nickel chromium triangle wastewater treatment and renovation system that a kind of processing of anodized surface generates as shown in Figure 1 include processing unit and
Reuse unit, wherein the specific equipment of processing unit is constituted are as follows: nickeliferous, chromium wastewater collection pond 1 is connected with catalytic multi-phase reactor 2；
Catalytic multi-phase reactor 2 is connected with the first pH conditioning tank 3, and the first pH conditioning tank 3 is connected with advanced oxidation pond 4, advanced oxidation pond 4
Be connected with the 2nd pH conditioning tank 5, the 2nd pH conditioning tank 5 is connected with flocculation basin 6, and flocculation basin 6 is connected with sedimentation basin 7, sedimentation basin 7 with
Filter 8, filter 8 are connected with ion exchange system 9, and 7 bottom of sedimentation basin is by pressing dredge pump 15 to be connected with sludge dewatering equipment 13.
The specific equipment of reclaiming system is constituted are as follows: ion exchange system 9 is connected with RO system 10, RO system 10 and DTRO system 11, DTRO
System 11 is connected with recycle-water collecting pit 12.There is water pump 14 to be connected between each processing structures.
It is reactor anode and cathode that catalytic multi-phase reactor, which selects graphite plate, in the present embodiment processing system, is filled with grain therebetween
Sub-electrode, the granule electrode material selection iron carbon particle.Fe can be released2+Catalysis is accelerated to form oxidisability extremely strong
OH can make organic matter difficult to degrade in waste water be oxidized the organic matter for resolving into small molecule, can especially make chrome complex dye molecule and
Nickel contact break is complexed.In addition the porous structure of iron carbon particle can adsorb coloured dye molecule, achieve the purpose that decoloration.Specifically
, granule electrode amount of filler is 1000kg (by processing water calculating per ton)；Current density is arranged in 40~55mA/cm2, aeration
Intensity is 600~800L/h, reaction contact time 1-2h.
The control of the first pH conditioning tank pH adjustable range is 2.0-4.0 in the present embodiment processing system, and entire reaction process is adopted
With pH monitor controller, pH value is monitored on-line, automatically control metering pump and add soda acid amount, drug consumption is minimized and protected
The stabilization for demonstrate,proving treatment effect, reduces the influence of human factor.
The middle-and-high-ranking oxidation pond of the present embodiment processing system adds the ferrous sulfate and hydrogen peroxide for launching that mass ratio is 1.2:1,
Fenton oxidation reaction occurs, is oxidized organic matter difficult to degrade in waste water further.It can also make the chromophore in dyestuff simultaneously
Group and auxochrome group unsaturated structure are destroyed, and waste water decolourizes completely.Reacting the control of water conservancy residence time is 1-1.5h.
The control of the 2nd pH conditioning tank pH adjustable range is 8.0-10.0 in the present embodiment processing system, and entire reaction process is adopted
With pH monitor controller, pH value is monitored on-line, automatically control metering pump and add soda acid amount, drug consumption is minimized and protected
The stabilization for demonstrate,proving treatment effect, reduces the influence of human factor.
Flocculation basin adds a kind of non-ionic high polymer coagulant PAM polyacrylamide in the present embodiment processing system.PAM
The molecule of polyacrylamide can build bridge with the suspended particles being scattered in solution and adsorb, and have extremely strong flocculation.
Sedimentation basin base sludge is pressed dredge pump to drain into sludge dewatering equipment and dry mud is made in the present embodiment processing system, is transported outward.
Sedimentation basin upper end clear water enters ion exchange system after being filtered.
The present embodiment processing system intermediate ion exchange system by nickel ion adsorption column and chromium ion adsorption column two-stage series connection and
At.Ionic adsorption column is filled with specific ion resin base weight metal absorbent.The resin base weight metal absorbent has larger suction
Attached area can only adsorb a kind of specific ion without adsorbing other ions in very wide condition and range.In the composite waste
Micro-nickel, the chromium ion of remnants can be adsorbed, and water outlet nickel, chromium concn reach discharge standard for electroplating pollutants (GB21900-
2008) three discharge standard of table.
Front-end processing system water outlet passes sequentially through RO system in the present embodiment reclaiming system and DTRO system is handled,
The penetrating fluid of DTRO system is collected in recycle-water collecting pit, is connected to production line washing pool.
The control of RO operating pressure is 2000-5000kPa in the present embodiment reclaiming system；DTRO operating pressure control
It is made as 1000-6000kPa.
The concentrate of RO system and DTRO system is emitted into nickeliferous, chromium in front-end processing system in the present embodiment reclaiming system
Composite waste collecting pit.
The present invention provides a kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates, and the system is using electricity
The technology that chemistry, chemistry, ionic adsorption and UF membrane etc. combine, can effectively be handled anodized surface without classification
Nickel, chromium ion and the organic pollutant removal in nickeliferous sealing of hole waste liquid and chromium-containing dyeing waste water generated, avoids waste water outlet
It is endangered caused by the ecological environment of periphery, and can be realized the circulating and recovering of water resource, reduce processing difficulty and operating cost,
Environmental benefit and economic benefit are fully demonstrated.
It, can according to the technique and scheme of the present invention and this hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (9)
1. a kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates, which is characterized in that including processing unit
With reuse unit, the processing unit includes catalytic multi-phase reactor, the first pH conditioning tank, advanced oxidation pond, the 2nd pH adjusting
Pond, flocculation basin, sedimentation basin, filter and ion exchange system, the reuse unit include RO system and DTRO system, wherein
The water outlet of the catalytic multi-phase reactor connects the water inlet connection of the first pH conditioning tank, the water outlet of the first pH conditioning tank
Mouth is connect with the water inlet in advanced oxidation pond, and the water outlet in the advanced oxidation pond is connect with the water inlet of the 2nd pH conditioning tank,
The water outlet of the 2nd pH conditioning tank and the water inlet of flocculation basin connect, the water inlet of the water outlet and sedimentation basin of the flocculation basin
Mouth connection, the water outlet of the sedimentation basin and the water inlet of filter connect, the water outlet of the filter and ion exchange system
The water inlet of system connects, and the water outlet of ion exchange system is sequentially connected RO system and DTRO system.
2. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 1 generates, feature exist
In the catalytic multi-phase reactor is using graphite plate as reactor anode and cathode.
3. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 2 generates, feature exist
In as granule electrode is filled between the graphite plate of reactor anode and cathode, the granule electrode material is iron carbon particle.
4. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 1 generates, feature exist
In the advanced oxidation pond adds ferrous sulfate and hydrogen peroxide, and Fenton oxidation reaction occurs.
5. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 1 generates, feature exist
In the ion exchange system is connected in series by nickel ion adsorption column and chromium ion adsorption column.
6. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 1 generates, feature exist
In the nickel chromium triangle waste water into treatment for reuse system first passes through nickeliferous, chromium composite waste collecting pit collection, nickeliferous, the chromium mixing
The water outlet of wastewater collection pond and the water inlet of catalytic multi-phase reactor connect.
7. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 6 generates, feature exist
In RO system and DTRO system generate concentrate and be emitted into nickeliferous, chromium composite waste collecting pit in processing unit.
8. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 7 generates, feature exist
In the RO system passes sequentially through reconnection recycle-water collecting pit after the pipeline connects with DTRO system.
9. the nickel chromium triangle wastewater treatment and renovation system that anodized surface processing according to claim 1 generates, feature exist
In the precipitating bottom of pond portion is connect by pipeline with sludge dewatering equipment, is set in the sedimentation basin and sludge dewatering equipment connecting pipe
It is equipped with pressure dredge pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111606519A (en) * | 2020-06-09 | 2020-09-01 | 闫娟 | Advanced treatment method for electroplating wastewater |
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| CN209322631U (en) * | 2018-12-12 | 2019-08-30 | 深圳市世清环保科技有限公司 | A kind of nickel chromium triangle wastewater treatment and renovation system that anodized surface processing generates |
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