CN103936203B - Electronickelling rinsing wastewater recovery treatment device and method of tank side - Google Patents
Electronickelling rinsing wastewater recovery treatment device and method of tank side Download PDFInfo
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- CN103936203B CN103936203B CN201410188209.5A CN201410188209A CN103936203B CN 103936203 B CN103936203 B CN 103936203B CN 201410188209 A CN201410188209 A CN 201410188209A CN 103936203 B CN103936203 B CN 103936203B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 184
- 239000011347 resin Substances 0.000 claims abstract description 120
- 229920005989 resin Polymers 0.000 claims abstract description 120
- 239000003513 alkali Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 28
- 230000008929 regeneration Effects 0.000 claims abstract description 21
- 238000011069 regeneration method Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 238000003795 desorption Methods 0.000 claims abstract description 15
- 230000001172 regenerating effect Effects 0.000 claims abstract description 13
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- 125000002091 cationic group Chemical group 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910001453 nickel ion Inorganic materials 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000005341 cation exchange Methods 0.000 claims description 90
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 8
- 239000003610 charcoal Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 3
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003729 cation exchange resin Substances 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 27
- 239000000047 product Substances 0.000 description 14
- 150000002815 nickel Chemical class 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention provides an electronickelling rinsing wastewater recovery treatment device and method of a tank side, and relates to treatment of electroplating wastewater. The recovery treatment device is provided with a raw water tank, a centrifugal pump, an active carbon filter, a raw water filter, a cationic resin exchange system, a water producing tank, an acid barrel, an alkali barrel, a gradient tank, a regenerative pump, a water producing filter and a concentrated liquid tank, wherein impurities in effluent of the raw water tank are removed through the centrifugal pump and the active carbon filter, and then the effluent enters the raw water filter for removing suspended particles; the wastewater subjected to refined filtration enters the cationic resin exchange system, so that nickel ions in the wastewater are replaced, and the effluent is discharged into the water producing tank; after the first set of exchanger is saturated through adsorption, water charging and water discharging are stopped; through connection of conversion pipelines, the second set of exchanger can be used as the first set of exchanger, the third set of exchanger can be used as the second set of exchangers, a standby exchangercan be used as the third set of exchanger, the first set of exchanger which is subjected to desorption and regeneration treatment is used as the standby exchanger, and circulation and replacement are sequentially carried out; and after the first set of exchanger is saturated through adsorption, acid liquid and alkali liquid are used for resin desorption and regeneration.
Description
Technical field
The present invention relates to electroplating wastewater processing, particularly relate to a kind of electronickelling poaching wastewater trough rim recycling and processing device and method thereof.
Background technology
Along with the fast development of electroplating industry and the raising day by day of environmental requirement, cleaner production, overall control, water cycle reuse have become three new demands that environmental administration at different levels supervises electroplating industry.Its ion exchange methods is applicable to the heavy metal wastewater thereby that concentration for the treatment of is low and quantity discharged is large, has obtained and apply extremely widely in electroplating wastewater processing.Especially in recent years, the interest of people more and more concentrates on and to regenerate electroplating wastewater and recycle, and ion exchange method is because of its good processed water quality, and water outlet can reuse, one of main method becoming advanced treatment of electroplating waste.But existing with unrealized water circulation use and the reuse of heavy metal recovery liquid in ion exchange technique process electroplating wastewater technique, this not only causes working cost high, and loses the advance of this technology completely.
Chinese patent CN202492427U discloses the electronickelling waste water recycling treatment system that a kind for the treatment of effect is good, can recycle noble metal, comprise the nickel-containing waste water collecting tank, quartz filter, the activated charcoal filter that are connected successively, the membrane separation concentrated compression apparatus of strainer, ultra-filtration equipment, one-level and secondary membrane separation concentration device; The membrane separation concentrated compression apparatus of described one-level is connected reuse water collection box with the water outlet of secondary membrane separation concentration device.
Chinese patent CN203065591U discloses a kind of electronickelling waste water and carries nickel treatment unit, described electronickelling storage of waste water bucket is connected with electrolytic system by pipe connecting, electrolytic system is connected with sewage treatment equipment by wastewater treatment pipe connecting, electrolytic system is connected with waste liquid storage barrel after electrolysis by waste water reclamation pipe connecting, described electrolytic system also comprises electrolytic pole board, circulation of elecrolyte pipe, and electrolytic pole board is arranged in electrolytic solution.
Chinese patent CN101549920 discloses a kind of method for recovering nickel salts in nickel-electroplating waste water.Comprise the following steps: (1) adds alkali in electronickelling waste water; (2) the electronickelling waste water after alkaline cleaning flows into settling vessel precipitation, through precipitation, carry out nickel salt press filtration in the electronickelling waste water input pressure filter containing throw out nickel salt, the throw out nickel salt clear water obtained repeatedly washs, obtain pure nickel salt, get final product direct reuse in electronickelling groove; (3) supernatant liquor flows into neutralization tank neutralization.
Summary of the invention
The object of the present invention is to provide a kind of electronickelling poaching wastewater trough rim recycling and processing device.
Another object of the present invention is to provide a kind of electronickelling poaching wastewater trough rim recovery and treatment method.
Described electronickelling poaching wastewater trough rim recycling and processing device is provided with former pond, impeller pump, activated charcoal filter, raw water filtration device, resin cation exchange system, produces water tank, sour bucket, alkali bucket, gradient groove, regenerative pump, product water filter and dope case;
The entrance end of described activated charcoal filter is connected through the exit end of impeller pump with former pond by pipeline, and the exit end of activated charcoal filter is connected by the entrance end of pipeline with raw water filtration device; The entrance end of described resin cation exchange system is connected by the exit end of pipeline with raw water filtration device, and the exit end of resin cation exchange system is connected with the entrance end producing water tank by pipeline;
Described resin cation exchange system is provided with 4 groups of resin cation exchange devices, wherein 3 groups of resin cation exchange devices are as treatment facility, another 1 group of resin cation exchange device is for subsequent use as mobility, by pipeline and loose joint series connection between each group resin cation exchange device; Described resin cation exchange system end exit end pipeline connects electrical conductivity meter;
The entrance end of described product water filter by pipeline through regenerative pump successively with gradient groove exit end, alkali bucket exit end, sour bucket exit end and produce tank outlet end and be connected, the exit end producing water filter is connected with the entrance end of unsaturated cationic resins exchange device by pipeline and loose joint; The exit end of described resin cation exchange system is connected with gradient groove entrance end, dope case entrance end and waste water station entrance end successively by pipeline;
Described regenerative pump is provided with magnetic flow meter with product water filter connecting tube; The inner dividing plate do not waited by two tile heights of described gradient groove is divided into three lattice, and three lattice are respectively equipped with entrance end, and entrance end pipeline are equipped with gradient groove water intaking valve, the exit end pipeline of gradient groove is provided with gradient groove outlet valve; The exit end pipeline of acid bucket is provided with sour bucket outlet valve, and the exit end pipeline of alkali bucket is provided with alkali bucket outlet valve, and the water outlet pipeline producing water tank is provided with product discharge valve of cistern for water-closet; The exit end pipeline of described unsaturated cationic interchanger is provided with pH meter; Described dope case entrance end pipeline is provided with dope case water intaking valve, and described waste water station entrance end pipeline is provided with waste water station water intaking valve.
Described former pond, product water tank, sour bucket, alkali bucket and dope case material therefor are preferably PE impregnating material.
Described gradient groove cell body material is preferably acrylic board, and be commonly called as the synthetic glass through special processing, acid-proof alkaline is good.
Coaxial self-priming acid and alkali-proof pump (model of Kunshan national treasure filter company limited can be adopted to be the coaxial self-priming acid and alkali-proof pump of KB-50032H) preferably selected by described impeller pump.
Described activated charcoal filter shell preferably selects Glass fibre reinforced plastic tub (model that Pentair Water company can be adopted to produce is the Glass fibre reinforced plastic tub of 1465), built-inly preferably select cocoanut active charcoal (model HS-cocoanut active charcoal 6 ~ 12 order (703B) can be adopted, Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer).
Hood type 304 Materials Filter preferably selected by described raw water filtration device, and built-in aperture is the cotton post of PP (can adopt model Φ 170-20 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described resin cation exchange device shell preferably selects Glass fibre reinforced plastic tub (can adopt model Pentair-1665, manufacturer's Pentair Water), Macroporous weak acid cation exchange resin (can adopt model ZGD113, Zhejiang Province Zhengguan Industry Co., Ltd of manufacturer) preferably selected by built-in resin.
Acid and alkali-resistance vacuum primingpump (can adopt model KB-50032NBL-SCH, Kunshan national treasure filter company limited of manufacturer) preferably selected by described regenerative pump.
Described product water filter preferably selects hood type strainer, and built-in aperture is the cotton post of PP (can adopt model 304 strainer, Φ 159-10 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
UPVC material (can adopt model 1 cun, manufacturer Tai Su South Asia group) is preferably selected in described loose joint.
Described electronickelling poaching wastewater trough rim recovery and treatment method, adopts described electronickelling poaching wastewater trough rim recycling and processing device, comprises the following steps:
1) collection of electronickelling poaching wastewater is entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity removed in waste water;
3) step 2) in waste water after charcoal filter enter raw water filtration device, built-in aperture is the cotton post of PP of 5 μm, filters the solid suspended particles removed in waste water;
4) step 3) in essence filter after waste water enter resin cation exchange system, described resin cation exchange system is made up of 4 groups of resin cation exchange devices, wherein 3 groups as treatment facility, waste water enters 3 groups of resin cation exchange devices successively, displace the nickel ion in waste water, water outlet enters product water tank, can do reuse; Remain 1 group of resin cation exchange device as subsequent use;
5) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, stop the 1st group of resin cation exchange device water inlet and water outlet, draw off from treatment process, be connected in resin desorption and reclaiming process and wait to process, connected the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device by transition duct simultaneously, 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, resin cation exchange device for subsequent use is as the 3rd group of resin cation exchange device, and desorb and complete the 1st group of resin cation exchange device of manipulation of regeneration will as resin cation exchange devices for subsequent use, so circulate replacement successively,
6) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to waste water station and process Footwall drift nickel further.
In step 4) in, after 1st group of resin cation exchange device absorption is saturated, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to the concrete operation step that waste water station processes Footwall drift nickel further and can be:
(1) (acid solution is the H of 5% ~ 8% to unsaturated cationic resin desorption
2sO
4solution, flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling), 1. sour bucket outlet valve and dope case water intaking valve are opened, and other valves are all closed; 2. observe dope case entrance end water outlet color, until water outlet near colourless time close dense tank intake valve of water, open gradient groove No. 1 water intaking valve, water outlet introduced in gradient groove No. 1 lattice; If the solution colour 3. in gradient groove No. 1 lattice is more shallow all the time, then closes sour bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close gradient groove No. 1 lattice water intaking valve, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in gradient groove No. 1 lattice is comparatively dark, then closes gradient groove No. 1 water intaking valve, open gradient groove No. 2 water intaking valves, water outlet is introduced in sour gradient groove No. 2 lattice, observe solution colour in lattice; If solution colour is still more shallow in gradient groove No. 2 lattice, then close sour bucket outlet valve, open gradient groove outlet valve and gradient groove 1, No. 2 water intaking valves, after circulation 10min, close gradient groove 1, No. 2 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still comparatively dark in gradient groove No. 2 lattice, close gradient groove 1, No. 2 water intaking valves, open gradient groove No. 3 water intaking valves, water outlet is introduced in gradient groove No. 3 lattice, solution colour in general to 3 lattice is more shallow, after confirming solution colour, opens gradient groove outlet valve and gradient groove 1,2, No. 3 water intaking valves, after circulation 10min, close gradient groove 1,2, No. 3 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope.
(2) clean water (clear water flow by Valve controlling at 2T/h, shown by magnetic flow meter), produce discharge valve of cistern for water-closet and open to waste water station water intaking valve, other valves are all closed, use clear water rinse resin, when the water outlet of resin cation exchange device shows 7 in neutral and pH meter, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve.
(3) resin regeneration (alkali lye is the NaOH solution of 4%, and flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling), alkali bucket outlet valve and opening to waste water station water intaking valve, other valves are all closed, and use alkali liquid regeneration resin, rinse 30min, regeneration completes.
In step 6) in, described acid solution and alkali lye enter resin cation exchange device again after producing water filter filtering.
Beneficial effect of the present invention is mainly reflected in: nickeliferous concentrated solution can be made to use plating tank for technique provided by the invention or metallic nickel reclaims; The treated product water of waste water meets reuse requirement, can be used as nickel bath washing water and saturated resin desorption and regeneration process water; Reduce electroplating sewerage discharge, preserve the ecological environment.
Accompanying drawing explanation
Fig. 1 is the structure composition frame chart of electronickelling poaching wastewater trough rim recycling and processing device embodiment of the present invention.
Embodiment
Following examples will the present invention is further illustrated by reference to the accompanying drawings.
See Fig. 1, described electronickelling poaching wastewater trough rim recycling and processing device embodiment is provided with former pond 1, impeller pump 2, activated charcoal filter 3, raw water filtration device 4, resin cation exchange system, produces water tank 6, sour bucket 7, alkali bucket 8, gradient groove 9, regenerative pump 10, product water filter 11 and dope case 12.
The entrance end of described activated charcoal filter 3 is connected through the exit end of impeller pump 2 with former pond 1 by pipeline, and the exit end of activated charcoal filter 3 is connected by the entrance end of pipeline with raw water filtration device 4; The entrance end of described resin cation exchange system is connected by the exit end of pipeline with raw water filtration device 4, and the exit end of resin cation exchange system is connected with the entrance end producing water tank 6 by pipeline.
Described resin cation exchange system is provided with 4 groups of resin cation exchange devices 51,52,53,54, wherein 3 groups of resin cation exchange devices 51,52,53 are as treatment facility, another 1 group of resin cation exchange device 54 is for subsequent use as mobility, by pipeline and loose joint series connection between each group resin cation exchange device 51 ~ 54; Described resin cation exchange system end exit end pipeline connects electrical conductivity meter P1.
The entrance end of described product water filter 11 by pipeline through regenerative pump 10 successively with gradient groove 9 exit end, alkali bucket 8 exit end, sour bucket 7 exit end and produce water tank 6 exit end and be connected, the exit end producing water filter 11 is connected with the entrance end of unsaturated cationic resins exchange device 54 by pipeline and loose joint; The exit end of described resin cation exchange system is connected with gradient groove 9 entrance end, dope case 12 entrance end and waste water station 13 entrance end successively by pipeline.
Described regenerative pump 10 is provided with magnetic flow meter P2 with product water filter 11 connecting tube; The dividing plate that described gradient groove 9 inside is not waited by two tile heights is divided into three lattice (No. 1 lattice 91, No. 2 lattice 92, No. 3 lattice 93), three lattice (No. 1 lattice 91, No. 2 lattice 92, No. 3 lattice 93) are respectively equipped with entrance end, and entrance end pipeline being equipped with gradient groove water intaking valve V91, the exit end pipeline of gradient groove 9 is provided with gradient groove outlet valve V92; The exit end pipeline of acid bucket 7 is provided with sour bucket outlet valve V7, and the exit end pipeline of alkali bucket 8 is provided with alkali bucket outlet valve V8, and the water outlet pipeline producing water tank 6 is provided with and produces discharge valve of cistern for water-closet V6; The exit end pipeline of described unsaturated cationic interchanger 54 is provided with pH meter P3; Described dope case 12 entrance end pipeline is provided with dope case water intaking valve V12, and described waste water station 13 entrance end pipeline is provided with waste water station water intaking valve V13.
In FIG, mark A is loose joint, and B represents clear water reuse.
Described former pond, product water tank, sour bucket, alkali bucket and dope case material therefor are preferably PE impregnating material.
Described gradient groove cell body material is preferably acrylic board, and be commonly called as the synthetic glass through special processing, acid-proof alkaline is good.
Coaxial self-priming acid and alkali-proof pump (model of Kunshan national treasure filter company limited can be adopted to be the coaxial self-priming acid and alkali-proof pump of KB-50032H) preferably selected by described impeller pump.
Described activated charcoal filter shell preferably selects Glass fibre reinforced plastic tub (model that Pentair Water company can be adopted to produce is the Glass fibre reinforced plastic tub of 1465), built-inly preferably select cocoanut active charcoal (model HS-cocoanut active charcoal 6 ~ 12 order (703B) can be adopted, Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer).
Hood type 304 Materials Filter preferably selected by described raw water filtration device, and built-in aperture is the cotton post of PP (can adopt model Φ 170-20 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described resin cation exchange device shell preferably selects Glass fibre reinforced plastic tub (can adopt model Pentair-1665, manufacturer's Pentair Water), Macroporous weak acid cation exchange resin (can adopt model ZGD113, Zhejiang Province Zhengguan Industry Co., Ltd of manufacturer) preferably selected by built-in resin.
Acid and alkali-resistance vacuum primingpump (can adopt model KB-50032NBL-SCH, Kunshan national treasure filter company limited of manufacturer) preferably selected by described regenerative pump.
Described product water filter preferably selects hood type strainer, and built-in aperture is the cotton post of PP (can adopt model 304 strainer, Φ 159-10 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
UPVC material (can adopt model 1 cun, manufacturer Tai Su South Asia group) is preferably selected in described loose joint.
Described electronickelling poaching wastewater trough rim recovery and treatment method, adopts described electronickelling poaching wastewater trough rim recycling and processing device, comprises the following steps:
1) collection of electronickelling poaching wastewater is entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity removed in waste water;
3) step 2) in waste water after charcoal filter enter raw water filtration device, built-in aperture is the cotton post of PP of 5 μm, filters the solid suspended particles removed in waste water;
4) step 3) in essence filter after waste water enter resin cation exchange system, described resin cation exchange system is made up of 4 groups of resin cation exchange devices, wherein 3 groups as treatment facility, waste water enters 3 groups of resin cation exchange devices successively, displace the nickel ion in waste water, water outlet enters product water tank, can do reuse; Remain 1 group of resin cation exchange device as subsequent use;
After 1st group of resin cation exchange device absorption is saturated, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to the concrete operation step that waste water station processes Footwall drift nickel further and can be:
(1) (acid solution is the H of 5% ~ 8% to unsaturated cationic resin desorption
2sO
4solution, flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling), 1. sour bucket outlet valve and dope case water intaking valve are opened, and other valves are all closed; 2. observe dope case entrance end water outlet color, until water outlet near colourless time close dense tank intake valve of water, open gradient groove No. 1 water intaking valve, water outlet introduced in gradient groove No. 1 lattice; If the solution colour 3. in gradient groove No. 1 lattice is more shallow all the time, then closes sour bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close gradient groove No. 1 lattice water intaking valve, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in gradient groove No. 1 lattice is comparatively dark, then closes gradient groove No. 1 water intaking valve, open gradient groove No. 2 water intaking valves, water outlet is introduced in sour gradient groove No. 2 lattice, observe solution colour in lattice; If solution colour is still more shallow in gradient groove No. 2 lattice, then close sour bucket outlet valve, open gradient groove outlet valve and gradient groove 1, No. 2 water intaking valves, after circulation 10min, close gradient groove 1, No. 2 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still comparatively dark in gradient groove No. 2 lattice, close gradient groove 1, No. 2 water intaking valves, open gradient groove No. 3 water intaking valves, water outlet is introduced in gradient groove No. 3 lattice, solution colour in general to 3 lattice is more shallow, after confirming solution colour, opens gradient groove outlet valve and gradient groove 1,2, No. 3 water intaking valves, after circulation 10min, close gradient groove 1,2, No. 3 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope.
(2) clean water (clear water flow by Valve controlling at 2T/h, shown by magnetic flow meter), produce discharge valve of cistern for water-closet and open to waste water station water intaking valve, other valves are all closed, use clear water rinse resin, when the water outlet of resin cation exchange device shows 7 in neutral and pH meter, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve.
(3) resin regeneration (alkali lye is the NaOH solution of 4%, and flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling), alkali bucket outlet valve and opening to waste water station water intaking valve, other valves are all closed, and use alkali liquid regeneration resin, rinse 30min, regeneration completes;
5) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, stop the 1st group of resin cation exchange device water inlet and water outlet, draw off from treatment process, be connected in resin desorption and reclaiming process and wait to process, connected the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device by transition duct simultaneously, 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, resin cation exchange device for subsequent use is as the 3rd group of resin cation exchange device, and desorb and complete the 1st group of resin cation exchange device of manipulation of regeneration will as resin cation exchange devices for subsequent use, so circulate replacement successively,
6) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to waste water station and process Footwall drift nickel further; Described acid solution and alkali lye enter resin cation exchange device again after producing water filter filtering.
Claims (5)
1. electronickelling poaching wastewater trough rim recycling and processing device, is characterized in that being provided with former pond, impeller pump, activated charcoal filter, raw water filtration device, resin cation exchange system, producing water tank, sour bucket, alkali bucket, gradient groove, regenerative pump, product water filter and dope case;
The entrance end of described activated charcoal filter is connected through the exit end of impeller pump with former pond by pipeline, and the exit end of activated charcoal filter is connected by the entrance end of pipeline with raw water filtration device; The entrance end of described resin cation exchange system is connected by the exit end of pipeline with raw water filtration device, and the exit end of resin cation exchange system is connected with the entrance end producing water tank by pipeline;
Described resin cation exchange system is provided with 4 groups of resin cation exchange devices, wherein 3 groups of resin cation exchange devices are as treatment facility, another 1 group of resin cation exchange device is for subsequent use as mobility, by pipeline and loose joint series connection between each group resin cation exchange device; Described resin cation exchange system end exit end pipeline connects electrical conductivity meter;
The entrance end of described product water filter by pipeline through regenerative pump successively with gradient groove exit end, alkali bucket exit end, sour bucket exit end and produce tank outlet end and be connected, the exit end producing water filter is connected with the entrance end of unsaturated cationic resins exchange device by pipeline and loose joint; The exit end of described resin cation exchange system is connected with gradient groove entrance end, dope case entrance end and waste water station entrance end successively by pipeline;
Described regenerative pump is provided with magnetic flow meter with product water filter connecting tube; The inner dividing plate do not waited by two tile heights of described gradient groove is divided into three lattice, and three lattice are respectively equipped with entrance end, and entrance end pipeline are equipped with gradient groove water intaking valve, the exit end pipeline of gradient groove is provided with gradient groove outlet valve; The exit end pipeline of acid bucket is provided with sour bucket outlet valve, and the exit end pipeline of alkali bucket is provided with alkali bucket outlet valve, and the water outlet pipeline producing water tank is provided with product discharge valve of cistern for water-closet; The exit end pipeline of described unsaturated cationic interchanger is provided with pH meter; Described dope case entrance end pipeline is provided with dope case water intaking valve, and described waste water station entrance end pipeline is provided with waste water station water intaking valve;
Described former pond, product water tank, sour bucket, alkali bucket and dope case material therefor are PE impregnating material; Described gradient groove cell body material is acrylic board;
Coaxial self-priming acid and alkali-proof pump selected by described impeller pump;
Described activated charcoal filter shell selects Glass fibre reinforced plastic tub, built-in cocoanut active charcoal; Hood type 304 Materials Filter selected by described raw water filtration device, and built-in aperture is the cotton post of PP of 5 μm;
Described resin cation exchange device shell selects Glass fibre reinforced plastic tub, built-in Macroporous weak acid cation exchange resin;
Acid and alkali-resistance vacuum primingpump selected by described regenerative pump.
2. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described product water filter selects hood type strainer, and built-in aperture is the cotton post of PP of 5 μm; UPVC material is selected in described loose joint.
3. electronickelling poaching wastewater trough rim recovery and treatment method, is characterized in that adopting electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, said method comprising the steps of:
1) collection of electronickelling poaching wastewater is entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity removed in waste water;
3) step 2) in waste water after charcoal filter enter raw water filtration device, built-in aperture is the cotton post of PP of 5 μm, filters the solid suspended particles removed in waste water;
4) step 3) in essence filter after waste water enter resin cation exchange system, described resin cation exchange system is made up of 4 groups of resin cation exchange devices, wherein 3 groups as treatment facility, waste water enters 3 groups of resin cation exchange devices successively, displace the nickel ion in waste water, water outlet enters product water tank, can do reuse; Remain 1 group of resin cation exchange device as subsequent use;
5) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, stop the 1st group of resin cation exchange device water inlet and water outlet, draw off from treatment process, be connected in resin desorption and reclaiming process and wait to process, connected the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device by transition duct simultaneously, 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, resin cation exchange device for subsequent use is as the 3rd group of resin cation exchange device, and desorb and complete the 1st group of resin cation exchange device of manipulation of regeneration will as resin cation exchange devices for subsequent use, so circulate replacement successively,
6) step 4) in the absorption of the 1st group of resin cation exchange device saturated after, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to waste water station and process Footwall drift nickel further.
4. electronickelling poaching wastewater trough rim recovery and treatment method as claimed in claim 3, it is characterized in that in step 4) in, after 1st group of resin cation exchange device absorption is saturated, carry out resin desorption and regeneration with acid solution and alkali lye respectively, resolve the nickeliferous water of high density produced and can be back to use in nickel bath also can collect and deliver to the concrete operation step that waste water station processes Footwall drift nickel further and can be:
(1) unsaturated cationic resin desorption; 1. sour bucket outlet valve and dope case water intaking valve are opened, and other valves are all closed; 2. observe dope case entrance end water outlet color, until water outlet near colourless time close dense tank intake valve of water, open gradient groove No. 1 water intaking valve, water outlet introduced in gradient groove No. 1 lattice; If the solution colour 3. in gradient groove No. 1 lattice is more shallow all the time, then closes sour bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close gradient groove No. 1 lattice water intaking valve, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in gradient groove No. 1 lattice is comparatively dark, then closes gradient groove No. 1 water intaking valve, open gradient groove No. 2 water intaking valves, water outlet is introduced in sour gradient groove No. 2 lattice, observe solution colour in lattice; If solution colour is still more shallow in gradient groove No. 2 lattice, then close sour bucket outlet valve, open gradient groove outlet valve and gradient groove 1, No. 2 water intaking valves, after circulation 10min, close gradient groove 1, No. 2 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still comparatively dark in gradient groove No. 2 lattice, close gradient groove 1, No. 2 water intaking valves, open gradient groove No. 3 water intaking valves, water outlet is introduced in gradient groove No. 3 lattice, solution colour in general to 3 lattice is more shallow, after confirming solution colour, opens gradient groove outlet valve and gradient groove 1,2, No. 3 water intaking valves, after circulation 10min, close gradient groove 1,2, No. 3 water intaking valves, open dense tank intake valve of water, collect nickeliferous dope;
Acid solution adopts the H of 5% ~ 8%
2sO
4solution, flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling;
(2) clean water, produce discharge valve of cistern for water-closet and open to waste water station water intaking valve, other valves are all closed, and use clear water rinse resin, when the water outlet of resin cation exchange device shows 7 in neutral and pH meter, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve; Clear water flow, is shown by magnetic flow meter at 2T/h by Valve controlling;
(3) resin regeneration, alkali bucket outlet valve and opening to waste water station water intaking valve, other valves are all closed, and use alkali liquid regeneration resin, and rinse 30min, regeneration completes; Alkali lye is the NaOH solution of 4%, and flow, is shown by magnetic flow meter at 200 ~ 300L/h by Valve controlling.
5. electronickelling poaching wastewater trough rim recovery and treatment method as claimed in claim 3, is characterized in that in step 6) in, described acid solution and alkali lye enter resin cation exchange device again after producing water filter filtering.
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| CN105110512A (en) * | 2015-09-21 | 2015-12-02 | 苏州净华水处理设备有限公司 | Electroplating nickel-containing wastewater treatment and reuse process |
| CN107034364B (en) * | 2017-04-25 | 2019-07-02 | 上海问鼎环保科技有限公司 | A method of metallic nickel is adsorbed and recycled from electroplating wastewater |
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| EP2532760B1 (en) * | 2011-06-06 | 2020-03-25 | ATOTECH Deutschland GmbH | Device and method for recovering nickel from a nickel plating bath fluid |
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