CN103936203A - 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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- CN103936203A CN103936203A CN201410188209.5A CN201410188209A CN103936203A CN 103936203 A CN103936203 A CN 103936203A CN 201410188209 A CN201410188209 A CN 201410188209A CN 103936203 A CN103936203 A CN 103936203A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 186
- 239000011347 resin Substances 0.000 claims abstract description 120
- 229920005989 resin Polymers 0.000 claims abstract description 120
- 239000002253 acid Substances 0.000 claims abstract description 49
- 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
- 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
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 238000004064 recycling Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 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
- 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 16
- 150000002815 nickel Chemical class 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 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
- 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
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 of environmental administrations at different levels to electroplating industry supervision.Wherein ion exchange method is applicable to that concentration for the treatment of is low and heavy metal wastewater thereby that quantity discharged is large has obtained application extremely widely in electroplating wastewater processing.Especially in recent years, people's interest more and more concentrates on regenerates and recycles electroplating wastewater, and ion exchange method is because of its good processed water quality, and water outlet can reuse, has become one of main method of advanced treatment of electroplating waste.Yet existing with unrealized water circulation use in ion exchange technique processing electroplating wastewater technique and the reuse of heavy metal recovery liquid, 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 successively connected nickel-containing waste water collecting tank, quartz filter, activated charcoal filter, strainer, ultra-filtration equipment, the membrane separation concentrated compression apparatus of one-level and the membrane separation concentrated compression apparatus of secondary; The water outlet of the membrane separation concentrated compression apparatus of described one-level and the membrane separation concentrated compression apparatus of secondary is connected reuse water collection box.
Chinese patent CN203065591U discloses a kind of electronickelling waste water and carries nickel treatment unit, described electronickelling waste water storage barrel 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, in the electronickelling waste water input pressure filter that contains throw out nickel salt, carry out nickel salt press filtration, resulting throw out nickel salt repeatedly washs with clear water, 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, acid bucket, alkali bucket, gradient groove, regenerative pump, product water filter and dope case;
The entrance end of described activated charcoal filter is connected with the exit end in former pond through impeller pump by pipeline, and the exit end of activated charcoal filter is connected with the entrance end of raw water filtration device by pipeline; The entrance end of described resin cation exchange system is connected with the exit end of raw water filtration device by pipeline, and the exit end of resin cation exchange system is connected with the entrance end that produces 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 standby as mobility, and each is organized between resin cation exchange device and connects by pipeline and loose joint; On described resin cation exchange system end outlet end pipeline, connect electrical conductivity meter;
The entrance end of described product water filter is connected with gradient groove exit end, alkali bucket exit end, acid bucket exit end and product water tank exit end through regenerative pump successively by pipeline, and the exit end that produces 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 dividing plate that described gradient groove inside is not waited by two tile heights is divided into three lattice, is respectively equipped with entrance end, and on entrance end pipeline, is equipped with gradient groove water intaking valve on three lattice, and the exit end pipeline of gradient groove is provided with gradient groove outlet valve; The exit end pipeline of acid bucket is provided with acid bucket outlet valve, and the exit end pipeline of alkali bucket is provided with alkali bucket outlet valve, and the water outlet pipeline that produces 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, acid bucket, alkali bucket and dope case material therefor are preferably PE impregnating material.
Described gradient groove cell body material is preferably acrylic board, is commonly called as the synthetic glass through special processing, and acid-proof alkaline is good.
Described impeller pump is preferably selected coaxial self-priming acid and alkali-proof pump (the coaxial self-priming acid and alkali-proof pump that the model that can adopt Kunshan national treasure filter company limited is KB-50032H).
Described activated charcoal filter shell is preferably selected Glass fibre reinforced plastic tub (Glass fibre reinforced plastic tub that the model that can adopt Pentair Water company to produce is 1465), the built-in cocoanut active charcoal (can adopt model HS-cocoanut active charcoal 6～12 orders (703B), Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer) of preferably selecting.
Described raw water filtration device is preferably selected hood type 304 Materials Filters, and built-in aperture is the cotton post of the PP of 5 μ m (can adopt model Φ 170-20 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer).
Described resin cation exchange device shell preferably selects Glass fibre reinforced plastic tub (can adopt model Pentair-1665, manufacturer's Pentair Water), built-in resin is preferably selected Macroporous weak acid cation exchange resin (can adopt model ZGD113, Zhejiang Province Zhengguan Industry Co., Ltd of manufacturer).
Described regenerative pump is preferably selected acid and alkali-resistance vacuum primingpump (can adopt model KB-50032NBL-SCH, Kunshan national treasure filter company limited of manufacturer).
Described product water filter is preferably selected hood type strainer, and built-in aperture is the cotton post of the PP of 5 μ m (can adopt model 304 strainers, Φ 159-10 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer).
UPVC material (can adopt 1 cun of model, the Tai Su of manufacturer 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) electronickelling poaching wastewater is collected and entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity of removing in waste water;
3) waste water step 2) after charcoal filter enters raw water filtration device, and built-in aperture is the cotton post of the PP of 5 μ m, filters the solid suspended particles of removing in waste water;
4) waste water step 3) after essence filter enters resin cation exchange system, described resin cation exchange system is comprised 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 standby;
5) step 4) 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, from treatment process, draw off, be connected in resin desorption and reclaiming process and wait to process, by transition duct, connect using the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device simultaneously, the 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, standby resin cation exchange device is as the 3rd group of resin cation exchange device, and the 1st group of complete resin cation exchange device of desorb and manipulation of regeneration will be as standby resin cation exchange device, circulation is replaced so successively,
6) step 4) absorption of the 1st group of resin cation exchange device saturated after, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density of resolving generation can be back to use also can collect in nickel bath and deliver to waste water station and further process recovery metallic nickel.
In step 4) in, after the 1st group of resin cation exchange device absorption is saturated, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density resolve producing can be back to use also can collect in nickel bath and deliver to waste water station and further process the concrete operation step that reclaims metallic nickel and can be:
(1) the unsaturated cationic resin desorption (H that acid solution is 5%～8%
2sO
4solution, flow is controlled at 200～300L/h by valve, by magnetic flow meter, shows), 1. acid 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, close dense tank intake valve of water when colourless until water outlet is near, open No. 1 water intaking valve of gradient groove, water outlet is introduced in No. 1 lattice of gradient groove; If 3. the solution colour in No. 1 lattice of gradient groove is more shallow all the time, close acid bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close No. 1 lattice water intaking valve of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in No. 1 lattice of gradient groove is darker, close No. 1 water intaking valve of gradient groove, open No. 2 water intaking valves of gradient groove, water outlet is introduced in No. 2 lattice of sour gradient groove, observe solution colour in lattice; If solution colour is still more shallow in No. 2 lattice of gradient groove, close acid bucket outlet valve, open 1, No. 2 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1, No. 2 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still more closed 1, No. 2 water intaking valves of gradient groove in No. 2 lattice of gradient groove, open No. 3 water intaking valves of gradient groove, water outlet is introduced in No. 3 lattice of gradient groove, solution colour in general to 3 lattice is more shallow, confirms, after solution colour, to open 1,2, No. 3 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1,2, No. 3 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope.
(2) (clear water flow is controlled at 2T/h by valve in clear water cleaning, by magnetic flow meter, show), 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, until the water outlet of resin cation exchange device, be neutrality and pH meter shows at 7 o'clock, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve.
(3) resin regeneration (the NaOH solution that alkali lye is 4%, flow is controlled at 200～300L/h by valve, shows by magnetic flow meter), 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 after producing water filter filtering again.
Beneficial effect of the present invention is mainly reflected in: technique provided by the invention can make nickeliferous concentrated solution can use plating tank 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 and processes 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
The present invention is further illustrated in connection with accompanying drawing for following examples.
Referring to 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, acid 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 with the exit end in former pond 1 through impeller pump 2 by pipeline, and the exit end of activated charcoal filter 3 is connected with the entrance end of raw water filtration device 4 by pipeline; The entrance end of described resin cation exchange system is connected with the exit end of raw water filtration device 4 by pipeline, and the exit end of resin cation exchange system is connected with the entrance end that produces 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 standby as mobility, and each is organized 51～54 of resin cation exchange devices and connects by pipeline and loose joint; On described resin cation exchange system end outlet end pipeline, connect electrical conductivity meter P1.
The entrance end of described product water filter 11 is connected with gradient groove 9 exit end, alkali bucket 8 exit end, acid bucket 7 exit end and product water tank 6 exit end through regenerative pump 10 successively by pipeline, and the exit end that produces 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 ends, dope case 12 entrance ends and waste water station 13 entrance ends successively by pipeline.
Described regenerative pump 10 is provided with magnetic flow meter P2 with product water filter 11 connecting tubes; The dividing plate that described gradient groove 9 inside are not waited by two tile heights is divided into three lattice (92, No. 3 lattice 93 of 91, No. 2 lattice of No. 1 lattice), on three lattice (92, No. 3 lattice 93 of 91, No. 2 lattice of No. 1 lattice), be respectively equipped with entrance end, and on entrance end pipeline, be 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 acid 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 that produces 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 pipelines are provided with dope case water intaking valve V12, and described waste water station 13 entrance end pipelines are provided with waste water station water intaking valve V13.
In Fig. 1, mark A is loose joint, and B represents clear water reuse.
Described former pond, product water tank, acid bucket, alkali bucket and dope case material therefor are preferably PE impregnating material.
Described gradient groove cell body material is preferably acrylic board, is commonly called as the synthetic glass through special processing, and acid-proof alkaline is good.
Described impeller pump is preferably selected coaxial self-priming acid and alkali-proof pump (the coaxial self-priming acid and alkali-proof pump that the model that can adopt Kunshan national treasure filter company limited is KB-50032H).
Described activated charcoal filter shell is preferably selected Glass fibre reinforced plastic tub (Glass fibre reinforced plastic tub that the model that can adopt Pentair Water company to produce is 1465), the built-in cocoanut active charcoal (can adopt model HS-cocoanut active charcoal 6～12 orders (703B), Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer) of preferably selecting.
Described raw water filtration device is preferably selected hood type 304 Materials Filters, and built-in aperture is the cotton post of the PP of 5 μ m (can adopt model Φ 170-20 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer).
Described resin cation exchange device shell preferably selects Glass fibre reinforced plastic tub (can adopt model Pentair-1665, manufacturer's Pentair Water), built-in resin is preferably selected Macroporous weak acid cation exchange resin (can adopt model ZGD113, Zhejiang Province Zhengguan Industry Co., Ltd of manufacturer).
Described regenerative pump is preferably selected acid and alkali-resistance vacuum primingpump (can adopt model KB-50032NBL-SCH, Kunshan national treasure filter company limited of manufacturer).
Described product water filter is preferably selected hood type strainer, and built-in aperture is the cotton post of the PP of 5 μ m (can adopt model 304 strainers, Φ 159-10 cun of 3 cores, Fuyang Kun Yuan filter plant company limited of manufacturer).
UPVC material (can adopt 1 cun of model, the Tai Su of manufacturer 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) electronickelling poaching wastewater is collected and entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity of removing in waste water;
3) waste water step 2) after charcoal filter enters raw water filtration device, and built-in aperture is the cotton post of the PP of 5 μ m, filters the solid suspended particles of removing in waste water;
4) waste water step 3) after essence filter enters resin cation exchange system, described resin cation exchange system is comprised 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 standby;
After the 1st group of resin cation exchange device absorption is saturated, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density resolve producing can be back to use also can collect in nickel bath and deliver to waste water station and further process the concrete operation step that reclaims metallic nickel and can be:
(1) the unsaturated cationic resin desorption (H that acid solution is 5%～8%
2sO
4solution, flow is controlled at 200～300L/h by valve, by magnetic flow meter, shows), 1. acid 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, close dense tank intake valve of water when colourless until water outlet is near, open No. 1 water intaking valve of gradient groove, water outlet is introduced in No. 1 lattice of gradient groove; If 3. the solution colour in No. 1 lattice of gradient groove is more shallow all the time, close acid bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close No. 1 lattice water intaking valve of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in No. 1 lattice of gradient groove is darker, close No. 1 water intaking valve of gradient groove, open No. 2 water intaking valves of gradient groove, water outlet is introduced in No. 2 lattice of sour gradient groove, observe solution colour in lattice; If solution colour is still more shallow in No. 2 lattice of gradient groove, close acid bucket outlet valve, open 1, No. 2 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1, No. 2 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still more closed 1, No. 2 water intaking valves of gradient groove in No. 2 lattice of gradient groove, open No. 3 water intaking valves of gradient groove, water outlet is introduced in No. 3 lattice of gradient groove, solution colour in general to 3 lattice is more shallow, confirms, after solution colour, to open 1,2, No. 3 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1,2, No. 3 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope.
(2) (clear water flow is controlled at 2T/h by valve in clear water cleaning, by magnetic flow meter, show), 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, until the water outlet of resin cation exchange device, be neutrality and pH meter shows at 7 o'clock, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve.
(3) resin regeneration (the NaOH solution that alkali lye is 4%, flow is controlled at 200～300L/h by valve, shows by magnetic flow meter), 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) 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, from treatment process, draw off, be connected in resin desorption and reclaiming process and wait to process, by transition duct, connect using the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device simultaneously, the 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, standby resin cation exchange device is as the 3rd group of resin cation exchange device, and the 1st group of complete resin cation exchange device of desorb and manipulation of regeneration will be as standby resin cation exchange device, circulation is replaced so successively,
6) step 4) absorption of the 1st group of resin cation exchange device saturated after, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density of resolving generation can be back to use also can collect in nickel bath and deliver to waste water station and further process recovery metallic nickel; Described acid solution and alkali lye enter resin cation exchange device after producing water filter filtering again.
Claims (10)
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, produces water tank, acid bucket, alkali bucket, gradient groove, regenerative pump, product water filter and dope case;
The entrance end of described activated charcoal filter is connected with the exit end in former pond through impeller pump by pipeline, and the exit end of activated charcoal filter is connected with the entrance end of raw water filtration device by pipeline; The entrance end of described resin cation exchange system is connected with the exit end of raw water filtration device by pipeline, and the exit end of resin cation exchange system is connected with the entrance end that produces 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 standby as mobility, and each is organized between resin cation exchange device and connects by pipeline and loose joint; On described resin cation exchange system end outlet end pipeline, connect electrical conductivity meter;
The entrance end of described product water filter is connected with gradient groove exit end, alkali bucket exit end, acid bucket exit end and product water tank exit end through regenerative pump successively by pipeline, and the exit end that produces 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 dividing plate that described gradient groove inside is not waited by two tile heights is divided into three lattice, is respectively equipped with entrance end, and on entrance end pipeline, is equipped with gradient groove water intaking valve on three lattice, and the exit end pipeline of gradient groove is provided with gradient groove outlet valve; The exit end pipeline of acid bucket is provided with acid bucket outlet valve, and the exit end pipeline of alkali bucket is provided with alkali bucket outlet valve, and the water outlet pipeline that produces 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.
2. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described former pond, produces water tank, acid bucket, alkali bucket and dope case material therefor be PE impregnating material; Described gradient groove cell body material is acrylic board.
3. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described impeller pump selects coaxial self-priming acid and alkali-proof pump.
4. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described activated charcoal filter shell selects Glass fibre reinforced plastic tub, built-in cocoanut active charcoal; Described raw water filtration device is selected hood type 304 Materials Filters, and built-in aperture is the cotton post of the PP of 5 μ m.
5. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described resin cation exchange device shell selects Glass fibre reinforced plastic tub, built-in Macroporous weak acid cation exchange resin.
6. electronickelling poaching wastewater trough rim recycling and processing device as claimed in claim 1, is characterized in that described regenerative pump selects acid and alkali-resistance vacuum primingpump.
7. 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 the PP of 5 μ m; UPVC material is selected in described loose joint.
8. 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) electronickelling poaching wastewater is collected and entered former pond;
2) step 1) water outlet in pond, Central Plains enters activated charcoal filter through impeller pump, filters the organic impurity of removing in waste water;
3) waste water step 2) after charcoal filter enters raw water filtration device, and built-in aperture is the cotton post of the PP of 5 μ m, filters the solid suspended particles of removing in waste water;
4) waste water step 3) after essence filter enters resin cation exchange system, described resin cation exchange system is comprised 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 standby;
5) step 4) 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, from treatment process, draw off, be connected in resin desorption and reclaiming process and wait to process, by transition duct, connect using the 2nd group of resin cation exchange device as the 1st group of resin cation exchange device simultaneously, the 3rd group of resin cation exchange device is as the 2nd group of resin cation exchange device, standby resin cation exchange device is as the 3rd group of resin cation exchange device, and the 1st group of complete resin cation exchange device of desorb and manipulation of regeneration will be as standby resin cation exchange device, circulation is replaced so successively,
6) step 4) absorption of the 1st group of resin cation exchange device saturated after, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density of resolving generation can be back to use also can collect in nickel bath and deliver to waste water station and further process recovery metallic nickel.
9. electronickelling poaching wastewater trough rim recovery and treatment method as claimed in claim 8, it is characterized in that in step 4) in, after the 1st group of resin cation exchange device absorption is saturated, with acid solution and alkali lye, carry out resin desorption and regeneration respectively, the nickeliferous water of high density resolve producing can be back to use also can collect in nickel bath and deliver to waste water station and further process the concrete operation step that reclaims metallic nickel and can be:
(1) unsaturated cationic resin desorption; 1. acid 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, close dense tank intake valve of water when colourless until water outlet is near, open No. 1 water intaking valve of gradient groove, water outlet is introduced in No. 1 lattice of gradient groove; If 3. the solution colour in No. 1 lattice of gradient groove is more shallow all the time, close acid bucket outlet valve, open gradient groove outlet valve, after circulation 10min, close No. 1 lattice water intaking valve of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If the solution colour in No. 1 lattice of gradient groove is darker, close No. 1 water intaking valve of gradient groove, open No. 2 water intaking valves of gradient groove, water outlet is introduced in No. 2 lattice of sour gradient groove, observe solution colour in lattice; If solution colour is still more shallow in No. 2 lattice of gradient groove, close acid bucket outlet valve, open 1, No. 2 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1, No. 2 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
If solution colour is still more closed 1, No. 2 water intaking valves of gradient groove in No. 2 lattice of gradient groove, open No. 3 water intaking valves of gradient groove, water outlet is introduced in No. 3 lattice of gradient groove, solution colour in general to 3 lattice is more shallow, confirms, after solution colour, to open 1,2, No. 3 water intaking valves of gradient groove outlet valve and gradient groove, after circulation 10min, close 1,2, No. 3 water intaking valves of gradient groove, open dense tank intake valve of water, collect nickeliferous dope;
Acid solution adopts 5%～8% H
2sO
4solution, flow is controlled at 200～300L/h by valve, by magnetic flow meter, shows;
(2) clear water cleans, 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, until the water outlet of resin cation exchange device, be neutrality and pH meter shows at 7 o'clock, close and produce discharge valve of cistern for water-closet and stop rinsing to waste water station water intaking valve; Clear water flow is controlled at 2T/h by valve, by magnetic flow meter, shows;
(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, rinse 30min, and regeneration completes; Alkali lye is 4% NaOH solution, and flow is controlled at 200～300L/h by valve, by magnetic flow meter, shows.
10. electronickelling poaching wastewater trough rim recovery and treatment method as claimed in claim 8, is characterized in that in step 6) in, described acid solution and alkali lye enter resin cation exchange device after producing water filter filtering again.
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