CN207109133U - The quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line - Google Patents
The quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line Download PDFInfo
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- CN207109133U CN207109133U CN201720776708.5U CN201720776708U CN207109133U CN 207109133 U CN207109133 U CN 207109133U CN 201720776708 U CN201720776708 U CN 201720776708U CN 207109133 U CN207109133 U CN 207109133U
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- 238000007747 plating Methods 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000001704 evaporation Methods 0.000 title claims abstract description 18
- 230000008020 evaporation Effects 0.000 title claims abstract description 18
- 238000011282 treatment Methods 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 169
- 239000002351 wastewater Substances 0.000 abstract description 68
- 229910052759 nickel Inorganic materials 0.000 abstract description 58
- 229910001453 nickel ion Inorganic materials 0.000 abstract description 37
- 239000007788 liquid Substances 0.000 abstract description 20
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 16
- 238000001035 drying Methods 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 58
- 230000008569 process Effects 0.000 description 29
- 238000012545 processing Methods 0.000 description 23
- 239000000243 solution Substances 0.000 description 23
- 238000009713 electroplating Methods 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 17
- 238000001179 sorption measurement Methods 0.000 description 17
- 150000002500 ions Chemical class 0.000 description 12
- 239000012528 membrane Substances 0.000 description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000005342 ion exchange Methods 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 238000001291 vacuum drying Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000009388 chemical precipitation Methods 0.000 description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical group OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229910001626 barium chloride Inorganic materials 0.000 description 4
- 239000013522 chelant Substances 0.000 description 4
- 239000002738 chelating agent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- LJYRLGOJYKPILZ-UHFFFAOYSA-N murexide Chemical compound [NH4+].N1C(=O)NC(=O)C(N=C2C(NC(=O)NC2=O)=O)=C1[O-] LJYRLGOJYKPILZ-UHFFFAOYSA-N 0.000 description 4
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
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- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004021 humic acid Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
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- VUKZWUYSEFVTRB-OSWZUBHSSA-N (4r)-4-[(3r,5r,8r,9s,10s,13r,14s,17r)-3-hydroxy-7,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl]pentanoic acid Chemical compound C([C@H]1CC2C)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)CC1 VUKZWUYSEFVTRB-OSWZUBHSSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
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- 238000005260 corrosion Methods 0.000 description 2
- JGUQDUKBUKFFRO-CIIODKQPSA-N dimethylglyoxime Chemical group O/N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-CIIODKQPSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 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 description 1
- -1 Amino Phosphoric acid Chemical compound 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 229910015191 FeOFe2O3 Inorganic materials 0.000 description 1
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 101000578940 Homo sapiens PDZ domain-containing protein MAGIX Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910003264 NiFe2O4 Inorganic materials 0.000 description 1
- JZTPOMIFAFKKSK-UHFFFAOYSA-N O-phosphonohydroxylamine Chemical compound NOP(O)(O)=O JZTPOMIFAFKKSK-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 102100028326 PDZ domain-containing protein MAGIX Human genes 0.000 description 1
- 241000222393 Phanerochaete chrysosporium Species 0.000 description 1
- 241000180027 Pseudomonas cedrina Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 241000739958 bacterium B8 Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical group CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 description 1
- HIRWGWMTAVZIPF-UHFFFAOYSA-N nickel;sulfuric acid Chemical compound [Ni].OS(O)(=O)=O HIRWGWMTAVZIPF-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical group NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000004069 wastewater sedimentation Methods 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line, during electroplate liquid nickel ion 0.20~30mg/L of mass concentration, collect in advance and import accumulator tank (4), recovery is introduced according to flow and equipment disposal ability and places bucket (6), in 0.08MPa, cycled through under the conditions of 55 70 DEG C after concentration board (7) carries out negative pressure drying and introduce concentration placement bucket (9), when being higher than 30mg/L by on-line monitoring nickel ion mass concentration containing nickel plating solution, dried treatment fluid is inputted into coating bath (10) reuse again, nickel ion is free of in the evaporation moisture being collected into drying process.Reduce and even avoid arranging outside waste water, heavy metal nickel is overcome to reduce wastewater treatment expense with the long-standing abuse that can not be administered that pollutes arranged outside waste water to environment at all, lead back coating bath with the recovered liquid after concentration and carry out circulation supplement, save the consumption of nickel stoste, economic security environmental protection.
Description
Technical field
The structure improved technology of electronickelling production auxiliary equipment is the utility model is related to, especially electronickelling production line is quick
Clean online plating solution negative pressure evaporation equipment for reclaiming.
Background technology
At present, as electroplating industry develops, it is mainly the noble metals such as copper, chromium, nickel to electroplate plating material used, per electricity together
There are one-level rinsing, two level rinsing, three-level rinsing etc. as plating process is latter, washing process can take part noble metal out of.The sector
Usual practice be that washings are directly discharged to sewage plant processing, the conventional treatment method of use is will a huge sum of money by physico-chemical process
Category precipitation, caused consequence is both to waste noble metal, may cause secondary heavy metal pollution again.
Caused waste component is extremely complex in electroplating process, and wherein heavy metal wastewater thereby is electroplating industry potential hazard pole
Big waste water classification.Nickel is a kind of heavy metal that can be carcinogenic, and it or a kind of metals resources costly, price are copper in addition
2~4 times.Electronickelling is widely used in plating production because it has excellent wearability, corrosion stability, solderability, and it adds
Work amount is only second to zinc-plated, and second is occupied in whole electroplating industry.A large amount of nickel-containing waste waters are produced in Ni-Speed.It is if nickeliferous
The untreated any discharge of waste water, can not only endanger environmental and human health impacts, can also cause the waste of Precious Metals Resources.
The type of nickel-plating liquid mainly has sulfate type, chloride type, sulfamic acid salt form, citric acid salt form, borofluoride
Type etc..It is that the referred to as application of meaning watt Watts nickel-plating liquids industrially is the most universal wherein with sulfate type subchloride.It is several
The physical property of nickel coating obtained in different nickel plating solutions.Sulfamic acid salt form, fluoboric acid salt form be applied to plate thick nickel or
Electroforming.Citric acid salt form is applied to the direct nickel plating on zine pressure casting.The cost of this several plating solution is higher.Electroplate liquid environment is straight
Influence operation quality is connect, for example the white dot that electronickelling occurs is exactly one of wherein typical phenomenon, this is by a kind of high-carbon
Thing causes, and high-carbon thing is caused by acid cleaning process when heat treatment carburizing process and pre-electroplating treatment.Existing corresponding solution
Scheme includes：(1) pretreatment cleaning process is improved, the method cleaned using ultrasonic wave, the particle of poor adhesive force after carburizing is existed
Split away off in cleaning；(2) plating solution is filtered in time；(3) acid cleaning process is improved：Mainly reduce pickle concentration,
The time of suitable corrosion inhibiter and suitable control pickling is added, avoids excessive erosion.Implement these measures, plating hickie problem obtains
The solution of essence.
Chinese sewage treatment project net August in 2015 discloses more recent achievement in research on 19th, and the document is according to difference
Principle, the method that chemically method, physical-chemical process and biological treatment three major types review processing Treating Electroplate Wastewater Containing Nickel.Wherein：
Mainly there are traditional chemical precipitation method, novel process ferrite process using chemical Treatment Treating Electroplate Wastewater Containing Nickel, with
And efficient heavy chelate precipitation.Wherein chemical precipitation method includes hydroxide precipitation method, sulphide precipitation again.
In the experimental study of chemical precipitation method processing electroplating wastewater, with CaO, CaCl2、BaCl2Three kinds of contact break mixture processing platings
Nickel waste water, contrast are found：BaCl2Contact break close effect it is best, the clearance highest of nickel ion, CaCl2Effect it is worst.Will
CaO and BaCl2Combination processing nickel-plating waste water, the clearance of nickel ion are and identical in the clearance of nickel ion up to more than 99%
When, BaCl2Usage amount than its it is independent processing nickel-plating waste water when it is few a lot.Scientist is aoxidized using Fenton reagent first,
Aoxidized afterwards using NaClO, be 3~5, Ni to pH2+The nickel-containing waste water that mass concentration is 100~150mg/L carries out contact break and located in advance
Reason, most handles through chemical precipitation, nickel ion mass concentration in final outflow water supernatant is less than 0.1mg/L afterwards.
In chemical precipitation method, relatively new type technique is ferrite process.FeSO4Various heavy metal ion can be made to form iron
Oxysome crystal and Precipitation, ferrite formula are FeOFe2O3.Ni in waste water2+Fe can be occupied2+Lattice formed co-precipitation
And remove.Experimental studies results show that ferrite process handles the process conditions of nickel-containing waste water] in pH=9.0, n (Fe2+)∶n(Ni2 +)=2: 1, under conditions of temperature is 70 DEG C, the conversion ratio of nickel is up to more than 99.0%, the Ni in waste water2+It can be dropped from 100mg/L
To 0.47mg/L.Study the process conditions of ferrite process processing low concentration nickel-containing waste water at room temperature.Result of the test shows, with
Na2CO3It is 8.5~9.0, n (Fe in pH for pH adjusting agent3+)∶n(Fe2+)=1.5: 1, n (Fe2+)∶n(Ni2+)=12: 1, are stirred
The time is mixed as under conditions of 15min, treatment effect is optimal.
Ferrous ion all be present in 2 kinds of techniques of Fenton methods and ferrite process, work is combined using Fenton- ferrite process
The complexing electroplating wastewater of skill Treatment of Copper, nickel.As a result show, in initial pH on wastewater=3, H2O2Initial mass concentration is 3.33g/
L, m (Fe2+)∶m(H2O2)=0.1, under the conditions of the optimal Fenton oxidation of 25 DEG C of temperature, 60min first is handled to waste water Fenton,
Wastewater sedimentation pH=11 is adjusted afterwards, it be 25mL/min control aeration flow, and the mass ratio of metal ion is 10 in iron and waste water,
Reaction temperature is 50 DEG C, and aeration time of contact is 60min, and the clearance of nickel ion reaches 99.94% in waste water on this condition,
The mass concentration of water outlet nickel ion is 0.33mg/L.
Experiment synthesizes a kind of heavy metal ion chelating agent HMCA, and HMCA is applied in nickel-plating waste water, pH be 6.5~
When 7.5, Ni2+Clearance up to more than 98.5%.The chelating agent is to Ni2+With good trapping ability, and and Ni2+Effect
The chelate products compact structure of formation is stable.When metal-chelator mass concentration is 3.79g/L, Ni2+Mass concentration it is minimum
For 0.45mg/L, the treatment effect to nickel-plating waste water is significantly improved.A kind of new having has been synthesized in the basic conditions to wad a quilt with cotton
Coagulate, chelate difunctional heavy metal chelant --- PAS, and PAS is tested for the chelating of heavy metal nickel ion, experimental result
Show, add 0.6mL PAS to the clearance of 50mg/L nickel-containing waste water up to more than 98%, it is seen that PAS is to Ni2+It is a kind of
Good chelating agent.
Absorption method is a kind of effective ways using the unique texture heavy-metal ion removal of adsorbent.Zeolite, activated carbon,
Humic acid etc. is often by the adsorbent as processing Treating Electroplate Wastewater Containing Nickel.
Artificial zeolite function is similar to natural zeolite, but foreign organic matter is fewer in duct, and application is wider.With oblique hair
Zeolite is to Ni2+Adsorbed, maximal absorptive capacity is up to 13.03mg/g.Zeolite surface is modified with dimethylglyoxime (DMG),
With through the Ni in the modified artificial zeolite absorption simulated wastewater of cetyl trimethylammonium bromide (CTAB)2+.As a result show：Solution
Volume is 25mL, and initial mass concentration is 20mg/L, and pH=7.0, when temperature is 35 DEG C, adding quality in modified zeolite is
1.1g, under the conditions of adsorption time is 50min, adsorption rate is up to more than 98%, and by other interfering ions (Cu2+、Pb2+) influence
Less.Using studies on Spectrophotometric Determination, new modified zeolite (Na-Y types) is to Ni in electroplating wastewater2+The influence of removal effect.Knot
Fruit shows, under conditions of room temperature, pH=4, when add modified zeolite mass fraction be 0.4%, adsorption time be 2h when, waste water
Ni in solution2+Clearance up to more than 99%, Na-Y types zeolite after HCl and NaCl mixed solution leaching regenerations repeat make
With adsorbance has declined after regeneration, but declines unobvious.
Activated carbon can more efficiently remove the complex ni-ion in waste water, under the conditions of Static Adsorption, have studied powder
Absorption behavior of the shaped activated carbon to low quality concentration citric acid complex nickel ion in the aqueous solution.Result of the test shows：Solution is initial
PH=11.0, activated carbon adds mass concentration when being 10.0g/L, and the clearance of nickel ion reaches 72.3%.
Heavy metal Ni is handled by using humic acid resin2+Experiment show：It is 5.0~7.0, Ni in wastewater pH2+Matter
Amount concentration is 50mg/L, and humic acid resin is by ion exchange and Absorptive complex wave to Ni2+Clearance up to more than 98%, and locate
Waste water is close neutral after reason, Ni in waste water2+Content be substantially less than discharging standards.
At present, the adsorbent industrially generally used is expensive, constrains the extensive use of adsorption technology, adsorbs simultaneously
The regeneration and secondary pollution of agent be also adsorption technology processing waste water during should emphatically consider the problem of.
With the continuous development of new macroporous type ion exchange resin and ion exchange continuous process, ion-exchange is made
Once causing the interest of academia for the means of nickel plating rinse water " zero-emission ".
Adsorption experiment is carried out to low-concentration sulfuric acid nickel solution using ion-exchange, the results showed that：At room temperature, 001 × 8
Type highly acid gel-network precipitation method 4.0g, nickel ion mass concentration 1.0g/L, reaction time 60min, pH 5~6,
The nickel ion rate of recovery can reach more than 95%.Dynamics research shows that the rate of adsorption is mainly controlled by Liquid film diffusion.Pass through amino
Phosphoric acid chelating resin is drawn with other chelating resins to the nickel ion absorption property comparative test in faintly acid electroplating wastewater：Amino
Phosphoric acid chelating resin is by H+Type turns Na+To Ni after type2+Adsorbance improve 29.5%.Ni in water after processing2+Mass concentration is less than
0.020mg/L.Electroplating wastewater processing, Ni are carried out using ion exchange technique2+Clearance can be more than 99%.
Ion exchange technique is combined with membrane technology, composition novel process has obtained very for handling Treating Electroplate Wastewater Containing Nickel
Good treatment effect.Using ion exchange-ultrafiltration-counter-infiltration group technology processing nickel-plating rinsing waste water, the system is by connecting
After the operation of continuous four wheat harvesting periods, monitoring result is shown, Ni in nickel-plating rinsing waste water2+Mass concentration is down to 1.0mg/L by 424mg/L
Hereinafter, Ni2+The rate of recovery is more than 99%, and waste water entirety reclamation rate is more than 60%, and system water outlet can be back to use in nickel-plating rinsing groove.
This method has the advantages that stable effluent quality and recyclable nickel resources, water resource.
Using ultrafiltration-counter-infiltration group technology concentrating and separating nickel-plating rinsing waste water, effluent quality is close to pure water.Using
Two-stage RO membranous systems are handled nickeliferous 250~350mg/L poaching wastewater, to the rejection of nickel up to more than 99.9%.
Using nanofiltration UF membrane electronickelling washings, to the clearance of nickel ion up to 99.5%, water outlet can be arranged directly
Put or be back to workshop.Using membrane electrolysis to Ni2+Mass concentration is 2000mg/L, and pH=5.32 nickeliferous simulated wastewater is carried out
Processing.And to three kinds of single pole room of anode membrane two, the pole room of single cavity block two and three pole room of double films different film electrolytic combination treatment effects
Compare, the results showed that：Single cavity block electrolysis is during electrolysis, and H+ is by anolyte caused by anode reaction
OH-Neutralize, while cavity block also prevents H+By so as to improve the rate of recovery of nickel.And current efficiency may be up to more than 90%, with
For general electrolytic method compared to improving 30%, electrolyzing rate is above single anode membrane and dual membranes and three chambers electrolysis.Handled using electroosmose process nickeliferous
Electroplating wastewater requires nickel ion mass concentration >=1.5g/L in rinse water, to improve dialysis rate.Concentrate after electrodialysis process
Cocnentration factor than reverse osmosis concentration than high, using this advantage can realize chemical nickel-plating liquid regenerate.Proof has been tested by the country, adopts
With the nickel sulfate of electroosmose process recyclable 90%, the nickel sulfate mass concentration of recovery reaches 80~100g/L, can directly return coating bath
Use.
To sum up it is known that application of membrane separation technology has unique advantage in the processing of Treating Electroplate Wastewater Containing Nickel, can not only have
Effect removes the Ni in waste water2+, make it with low concentration qualified discharge or waste water recycling, and filter membrane be retained down it is nickeliferous heavy
Slag can recycle, environment friendliness.Compared with other technologies, membrane technology equipment is simple, and use range is wide, handling rate
Height, without adding chemical reagent, therefore secondary pollution will not be caused.But membrane module is expensive, and can produce film in use
Pollution, this is where the problem of limiting membrane technology extensive use.
Treating Electroplate Wastewater Containing Nickel is handled using ion floatation method, there is higher clearance to nickel ion.Pass through ion floatation method
The research for handling electroplating wastewater finds that ion flotation has very high clearance, wherein nickel to metal ions such as cadmium, zinc, copper, nickel
The minimum reachable 0.33mg/L of residual qualities concentration, nickel grade is 13.2% in froth pulp, has high resource reclaim valency
Value.Binary metal ion copper and mickel is handled using floatation, copper, the clearance of nickel can respectively reach 92.46%,
93.14%.Single treatment and mixed processing experiment, nickel ion in single experiment are carried out using floatation to nickel ion and copper ion
The rate of recovery up to more than 99.5%.
Ion floatation method has the two-fold advantage of extraction and ion-exchange, has in electroplating wastewater is handled and adapts to model
The features such as enclosing wide, clearance height, and precious metals in waste water can be reclaimed.But ion floatation method is given up for heavy metal at present
The processing application of water is confined to the separation to one pack system, and the research handled two components and Multicomponent Wastewater is less.
At present, the key issue of biosorption process processing nickel-containing waste water is the strain adsorbance that can be used for absorption nickel ion
It is universal relatively low.Mutagenesis is carried out to absorption nickel bacterium B8 using RF low-temperature plasma, and tests suction of the mutant to nickel ion
Attached ability.Test result indicates that obtained mutant Ni12 (Pseudomonas cedrina) reaches to the adsorbance of nickel ion
136.7mg/g (dry mycelium), 11.7% is improved than original strain B8.Using porous ceramics as carrier, it is aerated using microorganism
Biofilm method fixed mutation body Ni12, is handled the solution containing nickel ion, its adsorption rate is up to 86%.Mutant Ni12 is to nickel
Ion has stronger adsorptivity, can stablize heredity, and the processing to nickel-containing waste water has good application prospect.Screen a kind of thermophilic nickel bacterium
And it have studied thermophilic nickel bacterium under optimal conditions and the special efficacy of nickel ion adsorbed.Pass through adsorption rate versus time curve：Nickel
Mass of ion concentration is 25mg/L, and absorption 2h adsorption reactions tend to balance, and adsorption rate reaches as high as 97.7%, to exceeded 50 times
Nickel-containing waste water, single treatment is close to the discharge standard of nickel；The bacterium is to the Ni in nickel-containing waste water2+There is wholesomeness absorption.
Scientist makees carrier to being fixed of sulfate reducing bacteria with rice husk, can effectively remove the nickel ion in waste water,
Clearance is up to 99%.There is experimental study to show, red bacillus is to Ni2+Clearance up to 90%.Whiterot fungi
(P.chrysosporium) to Ni2+Maximal absorptive capacity up to 56mg/g.Gene recombination bacterium E.coli JM10 are to Ni2+Enrichment
Ability is added more than 6 times than original strain.
At present, the research both at home and abroad on biological adsorption is in laboratory stage more, and laboratory has been achieved with fixation cell
The continuous operation of cell space system.Technique for gene engineering has also been applied in terms of microorganism adsorption.However, currently to biological adsorption agent
The understanding of kinetics and thermodynamics and biosorption mechanism between heavy metal is also insufficient, more inexpensively, adsorbs
The bigger biological adsorption agent of capacity is also up for exploitation.Therefore, biotechnology will industrially be widely used an also spacing
From.
New《Electroplating industry pollutant discharging standards》The promulgation of (GB21900-2008), compared to former《Sewage
Comprehensive discharge standard》(GB 8978-1996), improve the emission request of nickel-containing waste water.
To reach requirements at the higher level discharge standard, conventional processing method is after flocculation treatment plus at ion exchange, film
The techniques such as reason, electrodialysis do further advanced treating, which adds processing unit number, substantially increase processing cost.Cause
This, the efficiency and can that can improve heavy metal containing wastewater treatment simplifies handling process, and reducing electroplating enterprise cost for wastewater treatment will be
Handle an important directions of Treating Electroplate Wastewater Containing Nickel research.
Handle the conventional adsorption technology of Treating Electroplate Wastewater Containing Nickel, ion exchange technique, membrane separation technique, ion flotation technology etc.
The new and effective water technology for being all based on resource reclaim and growing up, physical chemistry new technology, new technology rise with
The progressive electroplating enterprise clean manufacturing that makes it possible.
Related improved technology also includes being concentrated by evaporation recovery process, and consumption of raw and auxiliary materials is larger, and operating cost is higher, it is difficult to pays
It is all to be widely implemented, especially, can not solve the problems, such as that the outer discharge capacity of sludge is huge and can not be fully cleaned up processing at all, it is difficult to long
Phase stable practical application.
Utility model content
The purpose of this utility model is to provide the quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line, with
Relatively low device fabrication and operating cost, decontamination cycle Water circulation while realizing recovery noble metal nickel, complete clean manufacturing mistake
Journey.
The purpose of this utility model will be realized by following technical measures：Recovery is placed bucket and connected by pipeline and circulating pump
Connect concentration board and bucket is placed in concentration, concentrate and heater is installed on board, meanwhile, concentration board connection vacuum and negative pressure pump, moreover,
Vacuum and negative pressure pump is connected with exhaust treatment system.
Especially, vacuum and negative pressure pump, circulating pump, recovery are placed bucket, concentration board and concentration placement bucket and installed concentratedly in machine
In vivo, body upper connects out pipeline access exhaust treatment system, wherein, exhaust treatment system is accessed dense by vacuum and negative pressure pump
In contracting board.
Especially, accumulator tank is connected by pipeline by circulating pump, meanwhile, bucket connecting pipeline coating bath is placed by concentration.
The advantages of the utility model and effect：Can be real to caused plating solution containing heavy metal nickel in electroplating assembly line production process
Present line rapid concentration, not only improves and supports normal reuse, also so as to follow-up effectively recovery, while be concisely and efficiently corresponding acquisition
Clean recovery washings, using water wisely, reduce and even avoid arranging outside waste water, overcome heavy metal nickel to be arranged with outside waste water to environment
The long-standing abuse that can not be administered at all is polluted, reduces wastewater treatment expense.Meanwhile lead back coating bath with the recovered liquid after concentration and carry out
Circulation supplement, the consumption of nickel stoste is saved, reduce production cost, economic security environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Equipment job step schematic diagram in Fig. 2 the utility model embodiments 1.
Reference includes：
Bucket 6, concentration board are placed in body 1, exhaust treatment system 2, vacuum and negative pressure pump 3, accumulator tank 4, circulating pump 5, recovery
7th, bucket 9, coating bath 10 are placed in heater 8, concentration.
Embodiment
Principle of the present utility model is that nickel is both heavy metal and noble metal, changes the understanding of traditional handicraft, with drying
Improve while reducing treatment fluid water content and wherein gone forward side by side method of the step as working solution reuse containing nickel concentration, substitute tradition early
Phase is to start solve the way for removing the nickel ion in waste water, more makes full use of precious metal nickel to pursue, drops to greatest extent
Low even up to zero-emission, realize the purpose of circulation clean manufacturing.
When nickel ion mass concentration is 30~200mg/L in general nickeliferous electroplating processes liquid, after being handled using ferrite process
The precipitation particle of formation is big and is easily isolated, and particle will not be redissolved, non-secondary pollution, and effluent quality is good, can reach discharge mark
It is accurate.The clearance of nickel reaches more than 98%, and nickel ion mass concentration reaches below 0.20mg/L in the waste water after processing, reaches state
Family's discharge standard.In addition, the material phase analysis of precipitating sludge shows under these conditions, obtained under optimum process condition
NiFe2O4、Fe3O4Deng ferrite sediment both non-secondary pollution but also as magnetic material recycling.
Treating Electroplate Wastewater Containing Nickel mostlys come from coating bath waste liquid and plating piece washings in nickel plating production process, waste plating solution amount it is few but
Wherein nickel ion concentration content is very high, and plating piece washings are the main sources of electroplating wastewater, accounts for plant effluent discharge capacity
More than 80%.Plating piece washings water is big, but wherein nickel ion concentration is much smaller compared with waste plating solution.According to《Plating pollution
Thing discharge standard》(GB 21900-2008) table 2, it is allowed to which being discharged into the electroplating wastewater of water body total nickel mass concentration is up to
0.5mg/L。
The utility model is intended to change and broken through the theory that tradition administers waste water, will contain nickel plating bath and be used as generation to safeguard complete work
Treated as liquid, using low-temperature evaporation principle under negative pressure, the moisture in recovered liquid quickly proposed, effectively improves its nickel concentration,
Coating bath is back to use again carries out treatment fluid circulation supplement.
Negative pressure evaporation belongs to atypia vacuum drying, also known as parsing-desiccation, is that material is placed in negative pressure of vacuum condition by one kind
Under, make the boiling point of water reduce, the boiling point of water at one atm is 100 DEG C, and the boiling point of water can be made under the conditions of negative pressure of vacuum
80 DEG C are dropped to, 60 DEG C, 40 DEG C start to evaporate, and prior art supports that vacuum drying can be at a temperature of 20 DEG C, 5 DEG C, -5 DEG C, -10 DEG C
By moisture evaporation, it is especially suitable for the stoving process for solving heat sensitive material, this is for being avoided in electroplate liquid other materials in high temperature
It is significant that extraction and cleaning water is polluted in evaporation.Considered based on production cost, at reduced pressure conditions, with relatively low heating temperature
The Technological Economy that degree completes this evaporation process is relatively reasonable.It is demonstrated experimentally that influenceing vacuum drying factor mainly has：Concentrate
Relative density, ten dry temperature of vacuum, vacuum drying vacuum, vacuum drying time etc..Vacuum drying temperature is not higher than 70 DEG C,
It is preferably controlled within 60 DEG C or so；The control of negative-pressure vacuum degree can be very slow in 0.08MPa or so, the too low rate of drying of vacuum,
The too high electroplate liquid of vacuum easily splashes cruelly；The negative pressure drying time is controlled with moisture, simultaneously as nickel salt is non-volatile, institute
To be free of nickel ion in the evaporation water being collected into.It is more abundant for the concentration electroplate liquid after 60 DEG C under the conditions of this processing in 5 hours
Dry hot mass metering relative density preferably controls the thick paste for 1.30~1.35.Because the operating temperature of nickel-plating liquid is 55-60
DEG C, generally there is large quantity of moisture evaporation in electroplating process, therefore dilute nickel-plating liquid of the concentration discharge after negative pressure drying can smoothly add
Enter reuse in nickel bath, be also beneficial to maintain normally to produce.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：One kind of equipment of the present utility model realizes structure, and as shown in Figure 2, recovery places bucket 6 and passes through pipe
Bucket 9 is placed in line and the connection of circulating pump 5 concentration board 7 and concentration, concentrates and heater 8 is installed on board 7, meanwhile, concentration board 7 connects
Vacuum and negative pressure pump 3 is connect, moreover, vacuum and negative pressure pump 3 is connected with exhaust treatment system 2.
In the present embodiment, vacuum and negative pressure pump 3, circulating pump 5, recovery place bucket 6, concentration board 7 and concentration and place bucket 9
To install concentratedly in body 1, the top of body 1 connects out pipeline access exhaust treatment system 2, wherein, exhaust treatment system 2 passes through
In the access concentration board 7 of vacuum and negative pressure pump 3.
In the present embodiment, accumulator tank 4 is connected by pipeline by circulating pump 5, meanwhile, the connecting pipeline of bucket 9 is placed by concentration
Coating bath 10.
In the utility model, nickel ion concentration conventional determining method is to use EDTA complexometries, murexide in plating solution
For indicator.
Reagent：
(1) concentrated ammonia liquor (density：0.91g/ml)；
(2) murexide indicator (murexide: sodium chloride=1: 100)；
(3) EDTA solution 0.05mol, is routinely demarcated；
Analysis method：
The chemical nickel-plating liquid after 10ml coolings is taken out in 250ml conical flask with pipette, and adds 100ml distillations
Water, 15ml concentrated ammonia liquors, shake up after adding about 0.2g murexide indicator, titrated with calibrated 0.05mol EDTA solution,
It is terminal when solution colour fades to purple by light brown.
The calculating of nickel content：
Ni2+=5.87M × V (g/L)
M in formula --- the molar concentration of standard EDTA solution；
V --- the milliliter number of usage standard EDTA solution.
The utility model at work, as shown in Figure 2, for caused nickeliferous plating in electroplating assembly line production process
Liquid, by on-line monitoring, during nickel ion 0.20~30mg/L of mass concentration, collect import accumulator tank in advance, then, according to flow
Recovery is introduced with equipment disposal ability and places bucket, then, concentration board is cycled through under the conditions of -0.08MPa, 55-70 DEG C and is entered
Concentration is introduced after row negative pressure drying and places bucket, is being higher than 30mg/L by on-line monitoring nickel ion mass concentration containing nickel plating solution
When, then dried treatment fluid is inputted into coating bath, online rapid concentration reuse is realized, at the same time, is collected into drying process
Evaporation moisture in be free of nickel ion.On the other hand, the final process liquid of rear volume or limited quality is terminated for plating production,
Can take and store for future use, or, recycled with foregoing art methods, though this process than it is relatively time-consuming even
Costly and worth.
Claims (3)
1. the quick clean online plating solution negative pressure evaporation equipment for reclaiming of a kind of electronickelling production line, it is characterised in that bucket is placed in recovery
(6) bucket (9) is placed by pipeline and circulating pump (5) connection concentration board (7) and concentration, heater is installed on concentration board (7)
(8), meanwhile, concentration board (7) connects vacuum and negative pressure pump (3), moreover, vacuum and negative pressure pump (3) connects with exhaust treatment system (2)
Connect.
2. the quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line as claimed in claim 1, its feature exist
In vacuum and negative pressure pump (3), circulating pump (5), recovery are placed bucket (6), concentration board (7) and concentration placement bucket (9) and installed concentratedly
In body (1), body (1) top connects out pipeline access exhaust treatment system (2), wherein, exhaust treatment system (2) passes through
In vacuum and negative pressure pump (3) access concentration board (7).
3. the quick clean online plating solution negative pressure evaporation equipment for reclaiming of electronickelling production line as claimed in claim 1, its feature exist
In, accumulator tank (4) is connected by pipeline by circulating pump 5, meanwhile, bucket (9) connecting pipeline coating bath (10) is placed by concentration.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119311A (en) * | 2017-06-29 | 2017-09-01 | 昆山福仕电子材料工业有限公司 | The quick clean online plating solution negative pressure evaporation reuse method of electronickelling production line and equipment |
| CN111977732A (en) * | 2020-09-04 | 2020-11-24 | 黑龙江科霖环境咨询有限公司 | Low-temperature negative-pressure evaporation method for high-concentration online instrument waste liquid |
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2017
- 2017-06-29 CN CN201720776708.5U patent/CN207109133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119311A (en) * | 2017-06-29 | 2017-09-01 | 昆山福仕电子材料工业有限公司 | The quick clean online plating solution negative pressure evaporation reuse method of electronickelling production line and equipment |
| CN111977732A (en) * | 2020-09-04 | 2020-11-24 | 黑龙江科霖环境咨询有限公司 | Low-temperature negative-pressure evaporation method for high-concentration online instrument waste liquid |
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