CN206692499U - A kind of processing system of ferric phosphate production waste water - Google Patents
A kind of processing system of ferric phosphate production waste water Download PDFInfo
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- CN206692499U CN206692499U CN201720120591.5U CN201720120591U CN206692499U CN 206692499 U CN206692499 U CN 206692499U CN 201720120591 U CN201720120591 U CN 201720120591U CN 206692499 U CN206692499 U CN 206692499U
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- waste water
- ferric phosphate
- processing system
- enrichment facility
- reverse osmosis
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- 239000002351 wastewater Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 239000005955 Ferric phosphate Substances 0.000 title claims abstract description 34
- 229940032958 ferric phosphate Drugs 0.000 title claims abstract description 34
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 title claims abstract description 34
- 229910000399 iron(III) phosphate Inorganic materials 0.000 title claims abstract description 34
- 150000003839 salts Chemical class 0.000 claims abstract description 39
- 238000005189 flocculation Methods 0.000 claims abstract description 29
- 230000016615 flocculation Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 238000001223 reverse osmosis Methods 0.000 claims description 36
- 238000001728 nano-filtration Methods 0.000 claims description 15
- 150000002500 ions Chemical class 0.000 claims description 12
- 238000000909 electrodialysis Methods 0.000 claims description 11
- 239000013049 sediment Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 3
- RFGNMWINQUUNKG-UHFFFAOYSA-N iron phosphoric acid Chemical compound [Fe].OP(O)(O)=O RFGNMWINQUUNKG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 2
- 238000005374 membrane filtration Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical group N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 5
- 235000011130 ammonium sulphate Nutrition 0.000 description 5
- 239000004254 Ammonium phosphate Substances 0.000 description 4
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 4
- 235000019289 ammonium phosphates Nutrition 0.000 description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 159000000003 magnesium salts Chemical class 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010786 composite waste Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Abstract
The utility model discloses a kind of processing system of ferric phosphate production waste water, including：Wastewater collection pond, pH regulating reservoirs, the pH regulating reservoirs are connected with wastewater collection pond；Flocculation tank, the flocculation tank are connected with pH regulating reservoirs；Film filter, the film filter are connected with flocculation tank；Divide salt device, it is described to divide salt device to be connected with film filter；Multistage enrichment facility, the multistage enrichment facility is with dividing the one outlet of salt device to be connected；Desalter, the desalter are connected with the production water out of afterbody enrichment facility in multistage enrichment facility；And vaporising device, the vaporising device is with dividing another outlet of salt device to be connected.The processing system that ferric phosphate of the utility model more than produces waste water realizes that ferric phosphate produces the recycling recycling of waste water, and realization is turned waste into wealth.
Description
Technical field
The utility model belongs to field of waste water treatment, and the processing system of waste water is produced more particularly, to a kind of ferric phosphate.
Background technology
Ferric phosphate lithium cell has the features such as " stability is good, easy processing, and electrical characteristics are strong ", it has also become rechargeable power battery
One main trend of development, but in the production process of its raw material ferric phosphate, substantial amounts of nitrogenous phosphorus-containing wastewater can be produced, due to N,
P easily causes body eutrophication, is just particularly paid attention in terms of the discharge standard of such waste water.In general ferric phosphate is given birth to
In production discharge composite waste, total phosphorus content exists in the form of phosphate in 450 ~ 600 mg/L, and the content of ammonia nitrogen is higher
In 10000 mg/l or so, for the pH value of waste water between 1.5 ~ 2.5, TDS contents are 30000mg/l-50000mg/l.
At present to it is relatively common in ferric phosphate production wastewater treatment method be bioanalysis, but during Biological Treatment of Wastewater by
The inhibitor that the sulfate radical containing high level and a small amount of metal ion in waste water are all microorganism growths is produced in ferric phosphate,
Need to be pre-processed before biochemistry；Need to add suitable carbon source during later stage biochemical treatment, micro- life can just be made by adjusting suitable pH
Thing grows, and the addition of a large amount of allogenic materials adds the cost of wastewater treatment again, therefore such waste water is not suitable for at bioanalysis
Reason.
The technology contents of the phosphorous nitrogenous effluent of magnesium salts processing also had been reported that, but ferric phosphate production Phosphorus From Wastewater content and
Ammonia-nitrogen content is higher to be used in phosphorous nitrogenous effluent, it is necessary to add substantial amounts of magnesia or magnesium salts, increases the cost of wastewater treatment.
After being treated additionally by magnesium salts, waste water is still difficult qualified discharge, will certainly cause water pollution.
The content of the invention
The purpose of this utility model is, for the deficiencies in the prior art, there is provided a kind of ferric phosphate produces waste water
Processing system.
Therefore, above-mentioned purpose of the present utility model is achieved through the following technical solutions：
A kind of processing system of ferric phosphate production waste water, the processing system of the ferric phosphate production waste water include：
- wastewater collection pond,
- pH regulating reservoirs, the pH regulating reservoirs are connected with wastewater collection pond；
- flocculation tank, the flocculation tank are connected with pH regulating reservoirs；
- film filter, the film filter are connected with flocculation tank；
- divide salt device, it is described to divide salt device to be connected with film filter；
- multistage enrichment facility, the multistage enrichment facility is with dividing the one outlet of salt device to be connected, first order concentration
The concentrated solution outlet of device with dividing the entrance of salt device to be connected, higher level's enrichment facility production water out with close to subordinate concentrate
The entrance of device is connected, close to subordinate's enrichment facility concentrated solution outlet be connected with the entrance of higher level's enrichment facility；
- desalter, the desalter are connected with the production water out of afterbody enrichment facility in multistage enrichment facility
Connect；
And
- vaporising device, the vaporising device is with dividing another outlet of salt device to be connected.
While using above-mentioned technical proposal, the utility model can also be used or combined using further below
Technical scheme：
The processing system of the ferric phosphate production waste water also includes flocculation sediment slag disposal system, and the flocculation sediment slag sinks
Shallow lake system includes filter press and drier, and the filter press is used to carry out press filtration to the flocculation sediment slag from flocculation tank,
The drier is used to obtain phosphoric acid iron powder after the filter-press residues after filter press press filtration are dried.
The film filter is tube type filter membrance device, and the tube type filter membrance device is used to filter off to remove to carry out autoflocculation
Floccule precipitation in the waste water of reaction tank, prevents the rear deposited phenomenon during subsequent concentration decrement from producing.
Described point of salt device is that nanofiltration divides salt device, the nanofiltration divide the divalent ion that salt device is used to retain in waste water in
In nanofiltration concentrate and retain monovalent ion in nanofiltration production water.
The vaporising device is MVR vaporising devices, and the entrance of the MVR vaporising devices is with dividing the bivalent ions of salt device
Outlet is connected, and solid is obtained after the evaporation of MVR vaporising devices, and main component is ammonium sulfate and ammonium phosphate, can be as chemical fertilizer.
The multistage enrichment facility includes first-stage reverse osmosis device and second level reverse osmosis apparatus, the first-stage reverse osmosis device
The outlet of monovalent ion of the entrance with dividing salt device be connected, the concentrated solution outlet of the first-stage reverse osmosis device is with dividing salt to fill
The entrance put is connected, and the production water out of the first-stage reverse osmosis device is connected with the entrance of second level reverse osmosis apparatus；It is described
The concentrated solution outlet of second level reverse osmosis apparatus is connected with the entrance of first-stage reverse osmosis device, the production of the second level reverse osmosis apparatus
Water out is connected with the entrance of desalter.
The rate of recovery of the first-stage reverse osmosis device is 75 ~ 90%.
The rate of recovery of the second level reverse osmosis apparatus is 80 ~ 90%.
The desalter is electrodialysis plant, and the electrodialysis plant fills with afterbody concentration in multistage enrichment facility
The production water out put is connected.The production water resistance rate of electrodialysis plant>During 15M Ω, production can be back to as ultra-pure water.
The utility model collects ferric phosphate by wastewater collection pond and carries out homogenize process, so that through wastewater collection
The water stabilization of waste water discharged in pond；By flocculation tank flocculation sediment, the ferric phosphate for making to remain in waste water is to precipitate
Form precipitates, and recycles；Filtered by water outlet of the tube type filter membrance device to flocculation tank, remove reaction generation
Precipitation, prevent the rear deposited phenomenon during subsequent concentration decrement from producing, reach the inflow requirement of NF membrane；Pass through nanofiltration device
Point salt and concentration are carried out to ammonium sulfate and ammonium phosphate, reduce the cost of investment and operating cost of vaporising device；Pass through vaporising device
Ammonium sulfate in waste water and phosphoric acid crystalline ammonium are separated out, realize that the recycling of solid recycles；Pass through multi-stage reverse osmosis device
Nanofiltration production water is concentrated and desalinated, reaches the inflow requirement of electrodialysis plant, while reclaims the ammonium sulfate in nanofiltration production water
And ammonium phosphate；Ultra-pure water is prepared by electrodialysis plant, realizes that the recycling of water recycles.The utility model passes through the above
The processing system of ferric phosphate production waste water realizes that the recycling of ferric phosphate production waste water recycles, and realization is turned waste into wealth.
Brief description of the drawings
Fig. 1 is the processing system that a kind of ferric phosphate provided by the utility model produces waste water；
In figure：101- wastewater collection ponds；201- pH regulating reservoirs；301- flocculation tanks；401- tube type filter membrance devices；
501- nanofiltrations divide salt device；601- first-stage reverse osmosis devices；602- second level reverse osmosis apparatus；701- electrodialysis plants；801-MVR
Vaporising device；901- filter presses；902- driers.
Embodiment
The utility model is described in further detail with specific embodiment referring to the drawings.
A kind of processing system of ferric phosphate production waste water, including：
- wastewater collection pond 101,
- pH regulating reservoirs 201, pH regulating reservoirs 201 are connected with wastewater collection pond 101；
- flocculation tank 301, flocculation tank 301 are connected with pH regulating reservoirs 201；
- film filter, film filter are connected with flocculation tank 301；
- divide salt device, divide salt device to be connected with film filter；
- multistage enrichment facility, multistage enrichment facility is with dividing the one outlet of salt device to be connected, first order enrichment facility
Concentrated solution outlet with dividing the entrance of salt device to be connected, higher level's enrichment facility production water out with close to subordinate's enrichment facility
Entrance be connected, close to subordinate's enrichment facility concentrated solution outlet be connected with the entrance of higher level's enrichment facility；
- desalter, desalter are connected with the production water out of afterbody enrichment facility in multistage enrichment facility；
And
- vaporising device, vaporising device is with dividing another outlet of salt device to be connected.
The processing system of ferric phosphate production waste water also includes flocculation sediment slag disposal system, flocculation sediment slag settling system bag
Filter press 901 and drier 902 are included, filter press 901 is used to carry out press filtration to the flocculation sediment slag from flocculation tank 301,
Drier 902 is used to obtain phosphoric acid iron powder after the filter-press residues after the press filtration of filter press 901 are dried.
Film filter is tube type filter membrance device 401, and tube type filter membrance device 401, which is used to filter off, removes that to carry out autoflocculation anti-
Answer the floccule in the waste water in pond 301 to precipitate, prevent the rear deposited phenomenon during subsequent concentration decrement from producing.
Point salt device is that nanofiltration divides salt device 501, and nanofiltration divides the divalent ion that salt device 501 is used to retain in waste water in receiving
In filter concentration liquid and retain monovalent ion in nanofiltration production water.
Vaporising device is MVR vaporising devices 801, the entrance of MVR vaporising devices 801 with divide salt device it is bivalent ions go out
Mouthful it is connected, obtains solid after the evaporation of MVR vaporising devices, main component is ammonium sulfate and ammonium phosphate, can be as chemical fertilizer.
Multistage enrichment facility includes first-stage reverse osmosis device 601 and second level reverse osmosis apparatus 602, first-stage reverse osmosis device
The outlet of monovalent ion of 601 entrance with dividing salt device is connected, and the concentrated solution outlet of first-stage reverse osmosis device 601 is with dividing salt
The entrance of device is connected, and the production water out of first-stage reverse osmosis device 601 is connected with the entrance of second level reverse osmosis apparatus 602；
The concentrated solution outlet of second level reverse osmosis apparatus 602 is connected with the entrance of first-stage reverse osmosis device 601, second level reverse osmosis apparatus
602 production water out is connected with the entrance of desalter.
The rate of recovery of first-stage reverse osmosis device 601 is 75 ~ 90%.
The rate of recovery of second level reverse osmosis apparatus 602 is 80 ~ 90%.
Desalter is electrodialysis plant 701, electrodialysis plant 701 and afterbody enrichment facility in multistage enrichment facility
Production water out be connected.The production water resistance rate of electrodialysis plant>During 15M Ω, production can be back to as ultra-pure water.
Above-mentioned embodiment be used for illustrate the utility model, preferred embodiment only of the present utility model and
, rather than to the utility model limit, in spirit of the present utility model and scope of the claims, to this reality
With new any modification, equivalent substitution and improvements made etc., the scope of protection of the utility model is both fallen within.
Claims (9)
- A kind of 1. processing system of ferric phosphate production waste water, it is characterised in that the processing system bag of the ferric phosphate production waste water Include：- wastewater collection pond,- pH regulating reservoirs, the pH regulating reservoirs are connected with wastewater collection pond；- flocculation tank, the flocculation tank are connected with pH regulating reservoirs；- film filter, the film filter are connected with flocculation tank；- divide salt device, it is described to divide salt device to be connected with film filter；- multistage enrichment facility, the multistage enrichment facility is with dividing the one outlet of salt device to be connected, first order enrichment facility Concentrated solution outlet with dividing the entrance of salt device to be connected, higher level's enrichment facility production water out with close to subordinate's enrichment facility Entrance be connected, close to subordinate's enrichment facility concentrated solution outlet be connected with the entrance of higher level's enrichment facility；- desalter, the desalter are connected with the production water out of afterbody enrichment facility in multistage enrichment facility；And- vaporising device, the vaporising device is with dividing another outlet of salt device to be connected.
- A kind of 2. processing system of ferric phosphate production waste water according to claim 1, it is characterised in that the ferric phosphate life The processing system of production waste water also includes flocculation sediment slag disposal system, and the flocculation sediment slag settling system includes filter press and done Dry device, the filter press are used to carry out the flocculation sediment slag from flocculation tank press filtration, and the drier is used for press filtration Filter-press residues after machine press filtration obtain phosphoric acid iron powder after being dried.
- A kind of 3. processing system of ferric phosphate production waste water according to claim 1, it is characterised in that the membrane filtration dress Tube type filter membrance device is set to, the tube type filter membrance device is used to filter off except cotton-shaped in the waste water from flocculation tank Thing precipitates.
- 4. the processing system of a kind of ferric phosphate production waste water according to claim 1, it is characterised in that described to divide salt device Divide salt device for nanofiltration, the nanofiltration divides divalent ion that salt device is used to retain in waste water in nanofiltration concentrate and retains one Valency ion is produced in water in nanofiltration.
- A kind of 5. processing system of ferric phosphate production waste water according to claim 1, it is characterised in that the vaporising device For MVR vaporising devices, the entrance of the MVR vaporising devices is with dividing the bivalent ions outlet of salt device to be connected.
- A kind of 6. processing system of ferric phosphate production waste water according to claim 1, it is characterised in that the multistage concentration Device includes first-stage reverse osmosis device and second level reverse osmosis apparatus, and the entrance of the first-stage reverse osmosis device is with dividing the one of salt device The outlet of valency ion is connected, and the concentrated solution outlet of the first-stage reverse osmosis device is described with dividing the entrance of salt device to be connected The production water out of first-stage reverse osmosis device is connected with the entrance of second level reverse osmosis apparatus；The concentration of the second level reverse osmosis apparatus Liquid outlet is connected with the entrance of first-stage reverse osmosis device, the production water out of the second level reverse osmosis apparatus and entering for desalter Mouth is connected.
- A kind of 7. processing system of ferric phosphate production waste water according to claim 6, it is characterised in that the one-level reverse osmosis The rate of recovery of saturating device is 75 ~ 90%.
- A kind of 8. processing system of ferric phosphate production waste water according to claim 6, it is characterised in that the two level reverse osmosis The rate of recovery of saturating device is 80 ~ 90%.
- A kind of 9. processing system of ferric phosphate production waste water according to claim 1, it is characterised in that the desalter For electrodialysis plant, the electrodialysis plant is connected with the production water out of afterbody enrichment facility in multistage enrichment facility.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120591.5U CN206692499U (en) | 2017-02-09 | 2017-02-09 | A kind of processing system of ferric phosphate production waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120591.5U CN206692499U (en) | 2017-02-09 | 2017-02-09 | A kind of processing system of ferric phosphate production waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675529A (en) * | 2018-04-20 | 2018-10-19 | 深圳市华虹清源环保科技有限公司 | A method of the phosphatic waste water of processing |
| CN110590034A (en) * | 2019-03-12 | 2019-12-20 | 湖北朗润环保科技有限公司 | Process treatment method for lithium iron wastewater of lithium battery anode material |
| CN114853246A (en) * | 2022-05-26 | 2022-08-05 | 中化(浙江)膜产业发展有限公司 | Iron phosphate wastewater treatment device and treatment method |
-
2017
- 2017-02-09 CN CN201720120591.5U patent/CN206692499U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675529A (en) * | 2018-04-20 | 2018-10-19 | 深圳市华虹清源环保科技有限公司 | A method of the phosphatic waste water of processing |
| CN110590034A (en) * | 2019-03-12 | 2019-12-20 | 湖北朗润环保科技有限公司 | Process treatment method for lithium iron wastewater of lithium battery anode material |
| CN114853246A (en) * | 2022-05-26 | 2022-08-05 | 中化(浙江)膜产业发展有限公司 | Iron phosphate wastewater treatment device and treatment method |
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Denomination of utility model: A treatment system for wastewater from iron phosphate production Effective date of registration: 20210810 Granted publication date: 20171201 Pledgee: China Everbright Bank Limited by Share Ltd. Hangzhou Yuhang sub branch Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2021330001089 |
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Denomination of utility model: A treatment system for ferric phosphate production wastewater Effective date of registration: 20221020 Granted publication date: 20171201 Pledgee: China Everbright Bank Limited by Share Ltd. Hangzhou Yuhang sub branch Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2022330002569 |
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Granted publication date: 20171201 Pledgee: China Everbright Bank Limited by Share Ltd. Hangzhou Yuhang sub branch Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2022330002569 |
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Denomination of utility model: A treatment system for wastewater from iron phosphate production Granted publication date: 20171201 Pledgee: China Everbright Bank Limited by Share Ltd. Hangzhou Yuhang sub branch Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2024980010904 |