CN209161720U - A kind of desulfurization wastewater recycling and zero discharge system - Google Patents
A kind of desulfurization wastewater recycling and zero discharge system Download PDFInfo
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- CN209161720U CN209161720U CN201820819928.6U CN201820819928U CN209161720U CN 209161720 U CN209161720 U CN 209161720U CN 201820819928 U CN201820819928 U CN 201820819928U CN 209161720 U CN209161720 U CN 209161720U
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- 238000004064 recycling Methods 0.000 title claims abstract description 10
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000126 substance Substances 0.000 claims abstract description 35
- 238000005189 flocculation Methods 0.000 claims abstract description 32
- 230000016615 flocculation Effects 0.000 claims abstract description 32
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 26
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 26
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 230000008025 crystallization Effects 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 14
- 239000012510 hollow fiber Substances 0.000 claims abstract description 13
- 239000011780 sodium chloride Substances 0.000 claims abstract description 13
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000011734 sodium Substances 0.000 claims abstract description 12
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 12
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003463 adsorbent Substances 0.000 claims abstract description 10
- 239000011777 magnesium Substances 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims abstract description 7
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 7
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 7
- 239000011575 calcium Substances 0.000 claims abstract description 6
- 238000005352 clarification Methods 0.000 claims abstract description 6
- 230000008014 freezing Effects 0.000 claims abstract description 6
- 238000007710 freezing Methods 0.000 claims abstract description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000005538 encapsulation Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 9
- 239000012452 mother liquor Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- 206010022000 influenza Diseases 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000005374 membrane filtration Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- 239000000292 calcium oxide Substances 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- -1 hydrogen Calcium oxide Chemical class 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 230000001954 sterilising effect Effects 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 claims 1
- 239000006228 supernatant Substances 0.000 claims 1
- 239000006227 byproduct Substances 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of desulfurization wastewater recycling and zero discharge systems, this system mainly includes desulfurization process device, centrifugal high pressure cyclone, raw water conditioning tank, electric flocculation device, efficiently clarification demineralizer, membrane filter, high-pressure ozone device, high-pressure UV device, single head encapsulates hollow fiber ultrafiltration, cartridge filter, NF device, magnesium sulfate enrichment facility, magnesium sulfate crystallizer, freezing separation device, purifying plant, sodium bed, level-one RO device, HIRO device, electrolysis unit, sodium chloride crystallizer, flue evaporated crystallization device, second level RO device, high-efficiency adsorbent chemicals dosing plant, sodium hydroxide chemicals dosing plant, calcium hydroxide chemicals dosing plant, sodium sulphate chemicals dosing plant, flocculation aid chemicals dosing plant, PH meter, Ca on-line computing model, Mg on-line computing model, online COD instrument, sludge dehydration device.This system can reduce dosage, while the sludge quantity for producing water is reduced, and generate the other magnesium sulfate of technical grade and sodium chloride byproduct, solve the problems, such as that current thermal power plant encounters.
Description
Technical field
The utility model relates to heat-engine plant desulfurized wastewater treatment environmental technology fields, and in particular to a kind of desulfurization wastewater resource
Change Zero discharging system.
Background technique
China's rapid economic development at present, the huge consumption of the simultaneous energy, environmental problem are also got worse.In order to
Current environment situation is set to be improved, country is also increasingly tighter to the management of the three wastes, and zero discharge of industrial waste water is numerous enterprises
Received with professional occurrences in human life, while gradual beginning is implemented in industrial circle.And water is essential as industrial circle
Resource, the discharge of the strong brine environmental protection index important as one after concentration.The zero-emission that China industrial wastewater field is implemented,
Especially in thermal power plant, critical issue is that desulfurization wastewater operating cost and cost of investment are too high, and lack stable operation warp
It tests, is now exploring how to test and finding more stable processing method and operating cost compared with low technical.
Desulphurization system is under accidental conditions, in order to keep stable operation, desulfurization wastewater is successively discharged, some is de-
Sulphur waste water Mg reaches 2000mg or more, and in softening process, conventional method, which needs to settle Mg, generates Mg (OH)2, not only want
A large amount of OH roots are added, and generate a large amount of sludge, increase system operation and maintenance cost.
Therefore, it is necessary to develop one kind to reduce desulfurization wastewater dosage, while mud discharging is reduced, obtained byproduct
It is very necessary for may be recovered the system utilized.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of desulfurization wastewater recycling and zero discharge system.
In view of the above problem of the prior art, one aspect according to the present utility model, the technology to solve above-mentioned is asked
Topic, the utility model use a kind of desulfurization wastewater recycling and zero discharge system, this system mainly includes desulfurization process device, high pressure
Centrifugal cyclone, electric flocculation device, efficiently clarifies demineralizer, membrane filter, high-pressure ozone device, high pressure at raw water conditioning tank
It is ultraviolet device, single head encapsulation hollow fiber ultrafiltration, cartridge filter, NF device, magnesium sulfate enrichment facility, magnesium sulfate crystallizer, cold
Freeze separator, purifying plant, sodium bed, level-one RO device, HIRO device, electrolysis unit, sodium chloride crystallizer, flue evaporative crystallization
Device, second level RO device, high-efficiency adsorbent chemicals dosing plant, sodium hydroxide chemicals dosing plant, calcium hydroxide chemicals dosing plant, sodium sulphate add
Medicine device, flocculation aid chemicals dosing plant, pH meter, Ca on-line computing model, Mg on-line computing model, online COD instrument, sludge dehydration device.
Compared with prior art, the utility model is advantageous in that:
(1) high efficiency composition inorganic adsorbent is added, obtains original organic sulfur, flocculant, flocculation aid, reduces dosage；
(2) it is equipped with high-pressure ozone device, high-pressure UV device, COD is effectively reduced；
(3) Mg ion ultimately forms epsom salt, and the dosage while sludge for reducing precipitating magnesium ion are also reduced；
(4) concentrated water of sodium bed regeneration HIRO device saves medicament and saves effluent part investment and operation processing simultaneously
Cost；
(5) concentrated water that HIRO device generates enters electrolysis unit and sodium chloride crystallizer, and the byproduct generated carries out comprehensive
It closes and utilizes.
(6) mother liquor of crystallizing evaporator is discharged into flue evaporated crystallization device, realizes real zero-emission.
Detailed description of the invention
Illustrate present specification embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the reference to embodiments some in present specification, for those skilled in the art, what is do not made the creative labor
In the case of, other attached drawings can also be obtained according to these attached drawings, used after can also being adjusted to certain a part therein.
Fig. 1 shows a kind of structure of desulfurization wastewater recycling and zero discharge system according to the utility model one embodiment
Schematic diagram.In figure, (101) desulfurization process device, (102) centrifugal high pressure cyclone, (103) electric flocculation device, (104) are efficiently clear
Clear demineralizer, (105) membrane filter, (106) high-pressure ozone device, (107) high-pressure UV device, the encapsulation of (108) single head
Hollow fiber ultrafiltration, (109) cartridge filter, (110) NF device, (111) magnesium sulfate enrichment facility, (112) magnesium sulfate crystallizer,
(113) freezing separation device, (114) purifying plant, (115) sodium bed, (116) level-one RO device, (117) HIRO device, (118) electricity
Solution device, (119) sodium chloride crystallizer, (120) flue evaporated crystallization device, (121) second level RO device, (122) flocculation aid add
Medicine device, (123) sodium hydroxide chemicals dosing plant, (124) calcium hydroxide chemicals dosing plant, (125) high-efficiency adsorbent chemicals dosing plant,
(126) sodium sulphate chemicals dosing plant, (127) sludge dehydration device.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Fig. 1 shows a kind of desulfurization wastewater recycling and zero discharge system according to the utility model one embodiment, including
(101) desulfurization process device, (102) centrifugal high pressure cyclone, (103) electric flocculation device, (104) efficiently clarify demineralizer,
(105) membrane filter, (106) high-pressure ozone device, (107) high-pressure UV device, (108) single head encapsulation hollow fiber ultrafiltration,
(109) cartridge filter, (110) NF device, (111) magnesium sulfate enrichment facility, (112) magnesium sulfate crystallizer, (113) freezing point
From device, (114) purifying plant, (115) sodium bed, (116) level-one RO device, (117) HIRO device, (118) electrolysis unit,
(119) sodium chloride crystallizer, (120) flue evaporated crystallization device, (121) second level RO device, (122) flocculation aid chemicals dosing plant,
(123) sodium hydroxide chemicals dosing plant, (124) calcium hydroxide chemicals dosing plant, (125) high-efficiency adsorbent chemicals dosing plant, (126) sulfuric acid
Sodium chemicals dosing plant, (127) sludge dehydration device.
In order to realize desulfurization wastewater recycling, this system is divided into five steps to realize, is connected by pipeline and pump
Each device in system:
(1) waste water that (101) desulfurization process device generates enters (102) centrifugal high pressure eddy flow by bottom by high-pressure pump
Device is equipped with flocculation aid dosing mouth before (102) centrifugal high pressure cyclone, connect with (122) flocculation aid chemicals dosing plant, then at center
Cylinder is distributed by eddy flow, and the top of centrifugal high pressure cyclone is equipped with clean water outlet and is connect with raw water conditioning tank by pipeline, high pressure from
The bottom of heart cyclone is equipped with waste liquid port and is connected by pipeline with the vacuum belt machine in (101) desulfurization process device, enters
The end of vacuum belt machine；
(2) raw water conditioning tank is connected by pipeline with (103) electric flocculation device by water pump, and (103) electric flocculation device is set
There is DC power supply, (103) electric flocculation device is efficiently clarified demineralizer with (104) and connect by pipeline, (104) efficiently clarification softening
Device by mixing pond before two, flocculation basin, high-efficiency clarifier form, it includes mixing pond before mixing pit and first before second that pond is mixed before two,
The pipeline that pond is mixed before first is equipped with pipe-line mixer, pipe-line mixer and (123) sodium hydroxide chemicals dosing plant and (124) hydrogen-oxygen
Change calcium chemicals dosing plant to be connected, pH meter is equipped with after having handled, mixing pit and (126) sodium sulphate chemicals dosing plant and (125) before second
High-efficiency adsorbent chemicals dosing plant is connected, and water outlet is equipped with Ca on-line computing model and Mg on-line computing model, is equipped in preceding mixed pond quick
Blender, is equipped in flocculation basin and promotes blender, and middle part is equipped with guide shell, flocculation basin and (125) high-efficiency adsorbent chemicals dosing plant
Connection, flocculation basin water outlet enter high-efficiency clarifier, flocculation basin water outlet by water inlet pipe the high-efficiency clarifier top tangent line into
Enter the diversion pipe of high-efficiency clarifier, is equipped in diversion pipe and becomes spacing, varied angle blade type revolving-flow, be equipped in high-efficiency clarifier
Two layers of inclined tube device, bottom are cone bucket, are connected by sludge pump with (127) sludge dehydration device；Two layers of inclined tube device is reversed
Arrangement, bottom are that spoil disposal is carried out at cone bucket, and bottom is equipped with mud level meter, spoil disposal can be carried out by mud level meter, while sludge uses 6%
Mixed pond before being back to；
(3) (105) membrane filter is made of automatic control system, flexible valve group, membrane filtration module, tank body piping.
Membrane filter by pipeline by (106) high-pressure ozone device cross and (107) high-pressure UV device after, by pump with
(108) single head encapsulation hollow fiber ultrafiltration connection, (108) single head encapsulation hollow fiber ultrafiltration mainly use the pvdf membrane silk with reinforcing rib type,
The encapsulation design of film wire one end；
(4) (108) single head encapsulation hollow fiber ultrafiltration is connected by pipeline and pump with (109) cartridge filter and (110) NF device
It connects, (110) NF device is two sections of level-one, and the concentrated water spout of (110) NF device is connect with (111) magnesium sulfate enrichment facility, (111) sulphur
Sour magnesium enrichment facility produces the mouth of a river and connect with (121) second level RO device, (111) magnesium sulfate enrichment facility concentrated water spout and (112) sulfuric acid
The connection of magnesium crystallizer, (112) magnesium sulfate crystallizer is by OSLO crystallizer, (113) freezing separation device, circulating pump, thickener, mother liquor
Tank and technique pump group are at finally formed magnesium sulfate is purified by (114) purifying plant, (112) magnesium sulfate crystallizer
Mother liquor tank is connect with (120) flue evaporated crystallization device；
(5) (120) flue evaporated crystallization device is two kinds, and one is flue direct-injections, and one is bypass flues；Its (112)
Magnesium sulfate crystallizer and the outlet mother liquor of (119) sodium chloride crystallizer enter (120) flue evaporated crystallization device, double using gas-liquid
To flow nozzle, tangent to periphery air inlet is carried out；
(6) online COD instrument is equipped with before (110) NF device, the production water of (110) NF device enters 115) sodium bed, (115) sodium bed
It produces water and enters (116) level-one RO device, (116) level-one RO device concentrated water enters and (117) HIRO device, (116) level-one RO dress
It sets the production mouth of a river and (117) HIRO device produces the mouth of a river and connect with (121) second level RO device, (121) second level RO device concentrated water and (116)
The connection of level-one RO device, (117) HIRO device concentrated water and (118) electrolysis unit, (119) sodium chloride crystallizer and (115) sodium bed
Connection, the mother liquor of (119) sodium chloride crystallizer drain into (120) flue evaporated crystallization device, (120) flue evaporated crystallization device temperature
Degree is 350 degree, pressure 500KPA；
(7) before antisludging agent is added on (110) NF device, (116) level-one RO device and (117) HIRO device, (116) level-one RO
Device pressure is PN4.0Mpa ~ PN6.4Mpa, and using high pressure pollution-resistant membrane, runner 45mil, (117) HIRO device pressure is
PN16Mpa, using the wide runner pollution-resistant membrane of rolling high pressure, runner 50mil, material PVDF；
(8) each device is attached by pipeline and pump, and pipeline uses UPVC, and water pump uses anti-corrosion material.
For the operation steady in a long-term for guaranteeing this process system, realizes complete zero-emission, while product is utilized, further include
Related matched cleaning device, chemicals dosing plant, electrical system and instrument control participate in a kind of this desulfurization wastewater recycling and zero discharge
The operation of system.
" one embodiment " and " embodiment " for being spoken of in the present specification etc. refers to combining embodiment description
Specific features, structure or feature are included at least one embodiment generally described herein.It is multiple in the description
It is not centainly to refer to the same embodiment that statement of the same race, which occurs, in place.Furthermore, it is understood that describing one in conjunction with any embodiment
Specific features, structure perhaps feature when to be advocated is that this feature, structure or feature are realized in conjunction with other embodiments
Also it falls in the scope of the utility model.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the variations and modifications of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (1)
1. a kind of desulfurization wastewater recycling and zero discharge system, this system mainly include desulfurization process device, centrifugal high pressure cyclone,
Raw water conditioning tank, electric flocculation device, efficiently clarify demineralizer, membrane filter, high-pressure ozone device, high-pressure UV device,
Single head encapsulation hollow fiber ultrafiltration, NF device, magnesium sulfate enrichment facility, magnesium sulfate crystallizer, freezing separation device, mentions cartridge filter
Pure device, sodium bed, level-one RO device, HIRO device, electrolysis unit, sodium chloride crystallizer, flue evaporated crystallization device, second level RO
Device, high-efficiency adsorbent chemicals dosing plant, sodium hydroxide chemicals dosing plant, calcium hydroxide chemicals dosing plant, sodium sulphate chemicals dosing plant, help it is solidifying
Agent chemicals dosing plant, pH meter, Ca on-line computing model, Mg on-line computing model, online COD instrument, sludge dehydration device, it is characterised in that:
(1) waste water that the desulfurization process device generates enters the centrifugal high pressure cyclone by bottom by high-pressure pump, described
Flocculation aid dosing mouth is equipped with before centrifugal high pressure cyclone, then waste water enters eddy flow, the centrifugal high pressure eddy flow in central tube
The top of device is equipped with clean water outlet and is connect with raw water conditioning tank by pipeline, and the bottom of the centrifugal high pressure cyclone is equipped with waste liquid port
It is connected by pipeline with the vacuum belt machine end in the desulfurization process device；
The raw water conditioning tank is connected by pipeline with the electric flocculation device by water pump, and the electric flocculation device is equipped with direct current
Power supply, the electric flocculation device are connect with the efficient clarification demineralizer by pipeline, and the efficient clarification demineralizer is by two
Preceding mixed pond, flocculation basin, high-efficiency clarifier composition；Mixed ponds include mixing pond before mixing pit and first before second before described two；It is described
The pipeline that pond is mixed before first is equipped with pipe-line mixer, the pipe-line mixer and the sodium hydroxide chemicals dosing plant and the hydrogen
Calcium oxide chemicals dosing plant is connected, and mixing pit is equipped with pH meter before described first, mixes before pond connection described second is mixed before described first
Close pond；Mixing pit is connected with the sodium sulphate chemicals dosing plant and the high-efficiency adsorbent chemicals dosing plant before described second, water outlet
Equipped with the Ca on-line computing model and the Mg on-line computing model, quick mixer, the flocculation basin are equipped in mixed pond before described
In be equipped with and promote blender, middle part is equipped with guide shell, and the flocculation basin connect with the high-efficiency adsorbent chemicals dosing plant, the wadding
Solidifying pond water outlet enters the high-efficiency clarifier, the flocculation basin water outlet by water inlet pipe the high-efficiency clarifier top tangent line into
Enter the diversion pipe of the high-efficiency clarifier, is equipped in the diversion pipe and becomes spacing, varied angle blade type revolving-flow, it is described efficient
Two layers of inclined tube device is equipped in clarifier, bottom is cone bucket, is connected by sludge pump with the sludge dehydration device；
The membrane filter is made of automatic control system, flexible valve group, membrane filtration module, tank body piping；
(2) membrane filter passes through pump through pipeline after the excessively described high-pressure UV device of the high-pressure ozone device
It being connect with single head encapsulation hollow fiber ultrafiltration, the single head encapsulation hollow fiber ultrafiltration mainly uses the pvdf membrane silk with reinforcing rib type,
The encapsulation design of film wire one end；
The single head encapsulation hollow fiber ultrafiltration is connect by pipeline and pump with the cartridge filter and the NF device, the NF dress
Two sections of level-one are set to, the concentrated water spout of the NF device is connect with the magnesium sulfate enrichment facility, and the magnesium sulfate enrichment facility produces
The mouth of a river is connect with the second level RO device, and the magnesium sulfate enrichment facility concentrated water spout is connect with the magnesium sulfate crystallizer, described
Magnesium sulfate crystallizer is by OSLO crystallizer, freezing separation device, circulating pump, thickener, mother liquor tank and technique pump group at ultimately forming
Magnesium sulfate purified by the purifying plant, the mother liquor tank of the magnesium sulfate crystallizer and the flue evaporative crystallization fill
Set connection；
The flue evaporated crystallization device is two kinds, and one is flue direct-injections, and one is bypass flues；The magnesium sulfate crystallizer
Enter the flue evaporated crystallization device with the outlet mother liquor of the sodium chloride crystallizer, using the two-way flow nozzle of gas-liquid, carries out
Tangent to periphery air inlet；
The online COD instrument is equipped with before the NF device, the production water of the NF device enters the sodium bed, the production water of the sodium bed
Into the level-one RO device, the level-one RO device concentrated water enters the HIRO device, the level-one RO device and described
HIRO device is connect with the second level RO device, and the second level RO device concentrated water enters the level-one RO device, the HIRO dress
Concentrated water is set to drain into the electrolysis unit, the sodium chloride crystallizer and the sodium bed, the mother liquor of the sodium chloride crystallizer
The flue evaporated crystallization device；
The centrifugal high pressure cyclone is due to the difference and centrifugal force of specific gravity, and wastewater supernatant fluid is by top rotation outflow, solid
Grain is flowed out by bottom, and flocculation aid is added before the centrifugal high pressure cyclone；
The electric flocculation device generates flocculant by medium between anodic-cathodic plate by DC power supply, generates alumen ustum with waste water；
Mixing pit agitator speed 200rpm or more before the efficient clarification demineralizer, the flocculation basin water outlet is by water inlet pipe in institute
The top tangent line for stating high-efficiency clarifier enters the diversion pipe of the high-efficiency clarifier, described to lead at rotation in the diversion pipe
It is equipped in flow tube and becomes spacing, varied angle blade type revolving-flow, abundant flocculation precipitation reaction is carried out, finally in the efficient clarification
It is separated at device cone bucket, water starts to walk upwards, in order to increase flow velocity, is inside equipped with two layers of inclined tube device, two layers of inclined tube device is anti-
To arrangement, bottom is that spoil disposal is carried out at cone bucket, and bottom is equipped with mud level meter, spoil disposal can be carried out by mud level meter, while sludge uses
6% is back to preceding mixed pond；
(3) the single head encapsulation hollow fiber ultrafiltration material is the pvdf membrane silk with reinforcing rib type, and film wire is allowed freely to put in putamina
Dynamic, Open architecture is conducive to air bump rinse operation into every film wire, is trapped solid and is sufficiently discharged；
The single head encapsulation hollow fiber ultrafiltration water outlet is described after the high-pressure ozone device and high-pressure UV device sterilization
The pressure of high-pressure ozone device is PN1.6Mpa or more, and the fluorescent tube in the high-pressure UV device is 100000 pas or more, will
Its COD control is within 50ppm.
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| CN110550791A (en) * | 2018-05-30 | 2019-12-10 | 北京朗新明环保科技有限公司 | Desulfurization waste water resourceful zero discharge system |
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| CN110550791A (en) * | 2018-05-30 | 2019-12-10 | 北京朗新明环保科技有限公司 | Desulfurization waste water resourceful zero discharge system |
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