CN204298180U - The treatment system of fluoride waste - Google Patents
The treatment system of fluoride waste Download PDFInfo
- Publication number
- CN204298180U CN204298180U CN201420801793.2U CN201420801793U CN204298180U CN 204298180 U CN204298180 U CN 204298180U CN 201420801793 U CN201420801793 U CN 201420801793U CN 204298180 U CN204298180 U CN 204298180U
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- resin tower
- tower
- waste
- regenerating unit
- water
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- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title claims abstract description 40
- 239000002699 waste material Substances 0.000 title claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 51
- 229920005989 resin Polymers 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- 230000001172 regenerating effect Effects 0.000 claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- 230000008929 regeneration Effects 0.000 claims abstract description 11
- 238000011069 regeneration method Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 10
- 239000011737 fluorine Substances 0.000 description 10
- 229910052731 fluorine Inorganic materials 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000004065 wastewater treatment Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000009102 absorption Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- -1 organic pollution Substances 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 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
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical class OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 208000001132 Osteoporosis Diseases 0.000 description 1
- 201000000023 Osteosclerosis Diseases 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical class OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 208000005770 Secondary Hyperparathyroidism Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- KURZCZMGELAPSV-UHFFFAOYSA-N [Br].[I] Chemical compound [Br].[I] KURZCZMGELAPSV-UHFFFAOYSA-N 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003957 anion exchange resin Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011430 maximum method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 208000005368 osteomalacia Diseases 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses a kind for the treatment of system of fluoride waste, comprise the fluoride waste be linked in sequence and collect tank, waste water pump, ACF adsorption tower, bag filter, SAC resin tower, WBC resin tower, SBC resin tower, ultimate filter, finished product water tank and underground tank; Also comprise regeneration water pump, one end of regeneration water pump is connected on the pipeline between finished product water tank and underground tank, and the other end connects ACF adsorption tower, SAC resin tower, WBC resin tower and SBC resin tower respectively; Also comprise HCl regenerating unit and NaOH regenerating unit, HCl regenerating unit is connected with SAC resin tower, and NaOH regenerating unit is connected with SBC resin tower.The utility model can, in removal fluoride waste while fluorine ion, reduce electrical conductivity in waste water, and well control pH value.Water after the utility model process can directly reclaim, and produces water source as pure water.
Description
Technical field
The utility model belongs to field of waste water treatment, relates to the system that water source was recycled, produced as pure water to a kind of fluoride waste.
Background technology
Fluorine is one of the widest element that the earth distributes.The chemical property of fluorine very vivaciously almost can interact with all elements, and the fluorine great majority thus in the earth's crust exist with compound state.Fluorine is one of trace element of needed by human, but Excess free enthalpy will cause fluorine poisoning.And the calcirm-fluoride of too high levels can show as different pathological changes: osteosclerosis, osteoporosis, osteomalacia and Secondary hyperparathyroidism osseous lesion.Long-term Excess free enthalpy fluorine can make bon e formation increase, and the bone arrangement formed is irregular, causes the segregation phenomenon of the quality and quantity of bone, shows obvious physiological-toxicity.Therefore GB8978 " integrated wastewater discharge standard " specifies that the limit value of fluoride (in F-) is 10mg/L (secondary discharge).
Fluoride waste is the main pollutant effluents that semiconductor manufacturing industry produces.Hydrofluoric acid becomes the primary solvent that uses in oxidation and etching technics due to its oxidisability and corrosivity, fluoride waste is mainly derived from the draining etc. of the board cleaning drainings such as FAB workshop BOE, SYSMAX, Quartz stove tube cleaning machine, Deglaze, Boron Deglaze and Wire Saw workshop cleaning wafer, and water for cleaning adopts ultra-pure water (UPW).
Existing fluoride wastewater treatment technology generally uses chemical precipitation method, namely calcium chloride PAC/PAM is added, and add alkali and carry out PH adjustment, fluoride waste electrical conductivity after this kind of PROCESS FOR TREATMENT is high, and the fluoride ion removing rate in fluoride waste can only control within 85%, can produce a large amount of mud after process, and the fluoride waste after process can not reuse, can only be discharged into municipal wastewater pipe network.
Hyperfiltration utilizes enough pressure to be that hydrone in high fluorinated volume is separated by reverse osmosis membrane, is widely used in desalinization at present, ultra-pure water produces and multiple feedwater, desalination in drainage sunk well and concentration technology.But its rate of recovery is the highest can only reach 80 ~ 85%, and go out inundation manage and generally can only accomplish below 10mg/L, fluorine (F-) clearance is generally also only between 93 ~ 96%, even if adopt two steps ro to reach water outlet conductivity≤15 μ s/cm (25 DEG C), but actually cannot reach the requirement that fluorinated volume is less than 1mg/L.
Utility model content
Based on the demand, the utility model proposes a kind for the treatment of system of fluoride waste, effectively reach required object, in removal fluoride waste while fluorine ion, reduce electrical conductivity in waste water, and well control pH value.
The technical solution of the utility model is as follows:
A treatment system for fluoride waste, comprises the fluoride waste be linked in sequence and collects tank, waste water pump, ACF adsorption tower, bag filter, SAC resin tower, WBC resin tower, SBC resin tower, ultimate filter, finished product water tank and underground tank; Also comprise regeneration water pump, one end of regeneration water pump is connected on the pipeline between finished product water tank and underground tank, and the other end connects ACF adsorption tower, SAC resin tower, WBC resin tower and SBC resin tower respectively; Also comprise HCl regenerating unit and NaOH regenerating unit, HCl regenerating unit is connected with SAC resin tower, and NaOH regenerating unit is connected with SBC resin tower.
Advantageous Effects of the present utility model is:
After former fluoride wastewater treatment, fluoride ion removing rate can only reach 85%, and electrical conductivity >1000 μ S/cm (25 DEG C), pH value is uncontrollable, can not directly recycle.And adopt the effluent quality of the utility model process to reach, electrical conductivity < 15 μ S/cm (25 DEG C), fluorinated volume (in F-) < 1mg/L, PH6 ~ 8, directly can reclaim, produce water source as pure water.
Accompanying drawing explanation
Fig. 1 is the utility model treatment system block diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As shown in Figure 1, the utility model comprises the fluoride waste collection tank, waste water pump, ACF adsorption tower, bag filter, SAC resin tower, WBC resin tower, SBC resin tower, ultimate filter, finished product water tank and the underground tank that are linked in sequence; Also comprise regeneration water pump, one end of regeneration water pump is connected on the pipeline between finished product water tank and underground tank, and the other end connects ACF adsorption tower, SAC resin tower, WBC resin tower and SBC resin tower respectively; Also comprise HCl regenerating unit and NaOH regenerating unit, HCl regenerating unit is connected with SAC resin tower, and NaOH regenerating unit is connected with SBC resin tower.
Composition graphs 1, handling process of the present utility model is:
1) fluoride waste is sent into fluoride waste feeder, carry out chemical coagulation and precipitation.
In fluorine process, one of maximum method is applied when chemical coagulation-sedimentation method is current fluoride wastewater treatment, but because it involves in large quantities of lime breast and aluminium salt (PAC) and organic flocculant (as PAM etc.), waste water after its process cannot reach the requirement of recycling, using the Main Means of original chemical coagulation-sedimentation method fluoride wastewater treatment groove as process the utility model fluoride waste reclaiming waste water in the utility model, continue to retain.
2) waste water after above-mentioned process is pumped into ACF adsorption tower by waste water pump, then send into bag filter.
According to fluoride waste source water analysis, process system discharges and contains the COD composition of part in the fluoride waste collected.These organic pollutions have an impact to the ion exchange resin etc. in fluoride waste recovery system, cause shorten its service life, and exchange capacity declines, regenerating agent consumption is excessive, effluent quality worsens, and time serious, may block resin bed space and cause resin to lump.Therefore, in the utility model, be provided with ACF adsorption tower (active carbon adsorber) and bag filter as technique preprocessing means, reduce the impact on follow-up equipment such as suspension, organic pollution, colloid as far as possible.
Charcoal absorption utilizes porous solid, its physical characteristic is finger-hole gap structure and distribution thereof mainly, the hole generated between lattice in activation process forms the minute aperture of various shape and size, thus huge adsorption surface area is formed, so, it has good adsorption capacity, the adsorption capacity of active carbon is based on physical absorption, but also carry out some selective absorptions, the organic matter being easy to be tightly held by activated carbon has with benzene, toluene etc. are the aromatic solvent class of representative, chlorinated aromatic hydrocarbons, phenol and chlorophenol, many lattice arene (as BaP), agricultural chemicals, chlorinated aromatic hydro carbons, and dyestuff, gasoline, amine, the contour molecular hydrocarbon of humus.Meanwhile, higher adsorption capacity is had to part heavy metal and bromine iodine, fluoride.
Bag filter retains tiny particle (such as broken powdered activated carbon etc.), volume is little, filter area is large, resistance is little, rejection advantages of higher to avoid the powdered carbon produced in active carbon adsorber (ACF tower) etc. to be with people's next procedure, polypropylene filter bag to have.
3) waste water after above-mentioned process is sent into SAC resin tower, WBA resin tower and SBA resin tower successively.
Due to the radius of fluorine ion (F-) and hydroxide ion (OH-) and electric charge all comparatively close, in most cases ion-exchange carries out between the OH-in solid phase and the F-in liquid phase, reduce the OH-concentration of liquid phase, be conducive to the carrying out of exchange process, when reducing with the pH of system, OH-concentration reduces, and being therefore conducive to most the present situation that F-and OH-carry out exchanging is the slightly acidic system of pH.Therefore the utility model have employed SAC/WBA/SBA resin tower and HCl and NaOH regenerating unit as treatment facility, effectively reach required object, in removal fluoride waste while fluorine ion, also reduce electrical conductivity in waste water, and well control pH value.
In addition, total hardness is there is in fluoride waste because of collection, i.e. calcium ions and magnesium ions, if be adsorbed on after on anion exchange resin by regenerative agent NaOH, operationally by heavy metal ion such as Ca2+, the Mg2+ in replacing water, corresponding precipitation of hydroxide can be produced, be attached to resin surface, block and pollute resin, stoping it to proceed ion-exchange, and being difficult to remove.Therefore, adopt stain resistance good in the utility model, and be conducive to system effectively except the highly acidic resin of fluorine, to ensure out that electrical conductivity of water meets designing requirement.
In order to ensure fluorine (F-) ion and the conductivity indices of producing water, save acid and alkali consumption, in the utility model, strong acid and strong base type resin adopts counter-current regeneration, and weakly base resin is very easily regenerated by alkali due to it, can utilize the regeneration liquid waste of basic resin.The utility model adopts highly acid gel system's resin and alkalescent macropore/strong basicity gelling anionic resin composition SAC (u)-WBA (D)-SBA (u) three tower ion exchange system to reclaim and purifying technique as main.
4) water of above-mentioned process is obtained pure water after ultimate filter, send into finished product water tank.Wherein a part of pure water is supplied to ACF adsorption tower as backwash water by regeneration water pump (backwashing pump of holding concurrently), and is supplied to SAC resin tower, WBA resin tower and SBA resin tower as recycled water.All the other pure water directly deliver to 2000m
3underground tank.
5) by the backwash draining in the regenerative wastewater of enrichment fluorine ion in SAC resin tower, WBA resin tower, SBA resin tower after above-mentioned process and ACF adsorption tower, be still discharged into the fluoride waste feeder of former chemical precipitation method, focus on rear discharge by former technique.
Above-described is only preferred embodiment of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from spirit of the present utility model and design, all should think and be included within protection domain of the present utility model.
Claims (1)
1. a treatment system for fluoride waste, is characterized in that: comprise the fluoride waste be linked in sequence and collect tank, waste water pump, ACF adsorption tower, bag filter, SAC resin tower, WBC resin tower, SBC resin tower, ultimate filter, finished product water tank and underground tank; Also comprise regeneration water pump, one end of regeneration water pump is connected on the pipeline between finished product water tank and underground tank, and the other end connects ACF adsorption tower, SAC resin tower, WBC resin tower and SBC resin tower respectively; Also comprise HCl regenerating unit and NaOH regenerating unit, HCl regenerating unit is connected with SAC resin tower, and NaOH regenerating unit is connected with SBC resin tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801793.2U CN204298180U (en) | 2014-12-16 | 2014-12-16 | The treatment system of fluoride waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801793.2U CN204298180U (en) | 2014-12-16 | 2014-12-16 | The treatment system of fluoride waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204298180U true CN204298180U (en) | 2015-04-29 |
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ID=53103738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420801793.2U Expired - Fee Related CN204298180U (en) | 2014-12-16 | 2014-12-16 | The treatment system of fluoride waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204298180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683709A (en) * | 2019-07-15 | 2020-01-14 | 衢州市鼎盛化工科技有限公司 | Zero-discharge treatment method for fluorine-containing wastewater |
-
2014
- 2014-12-16 CN CN201420801793.2U patent/CN204298180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683709A (en) * | 2019-07-15 | 2020-01-14 | 衢州市鼎盛化工科技有限公司 | Zero-discharge treatment method for fluorine-containing wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 |