CN108101270A - A kind of intermediate water reuse system and processing method for recirculated cooling water - Google Patents
A kind of intermediate water reuse system and processing method for recirculated cooling water Download PDFInfo
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- CN108101270A CN108101270A CN201810130937.9A CN201810130937A CN108101270A CN 108101270 A CN108101270 A CN 108101270A CN 201810130937 A CN201810130937 A CN 201810130937A CN 108101270 A CN108101270 A CN 108101270A
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- water
- pond
- nanofiltration
- ultrafiltration
- filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 239000000498 cooling water Substances 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000001728 nano-filtration Methods 0.000 claims abstract description 57
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 45
- 239000012267 brine Substances 0.000 claims abstract description 22
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims description 32
- 238000001914 filtration Methods 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 241000700605 Viruses Species 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000011953 bioanalysis Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 241001365789 Oenanthe crocata Species 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a kind of intermediate water reuse systems and processing method for recirculated cooling water, system includes pretreatment section and advanced treating section, the pretreatment section is included through the sequentially connected filter tank of pipeline, disinfection unit, former pond and self-cleaning filter, the advanced treating section is included through the sequentially connected ultrafiltration film group device of pipeline, is produced from pond in ultrafiltration, cartridge filter, nanofiltration system and nanofiltration production pond, the former pond, ultrafiltration film group device and nanofiltration system connect strong brine return duct respectively, the strong brine return duct is connected with the outer comb of strong brine, integrated artistic being capable of continuous and steady operation, control management is convenient, effluent quality is high, service life is long, operating pressure is low, low energy consumption for system operation, reduce actual motion cost, realize that water outlet reaches and is better than the water quality requirement of Circulating Cooling Water of Power Plant.
Description
Technical field
The invention belongs to recirculating water technical fields, and in particular to a kind of intermediate water reuse system for recirculated cooling water and
Processing method.
Background technology
The main path for solving shortage of water resources at present builds diversion works, exploiting groundwater, Seawater Desalination Project, drop
Water Collection utilization, Treated sewage reusing engineering.Technology of middle water recycle is capable of providing stabilization compared to traditional long-range water diversion project and can hold
Continuous local water source reduces energy consumption, reduces the demand of sewage treatment plant and some basic water processing establishments.Treated sewage reusing processing
Technology mainly includes following three categories：（1）Physical-chemical process：Using technologies such as filtering, absorption, retention, coagulating sedimentation and each
The comprehensive utilization of technology, operational administrative is simple compared with bioanalysis, stable effluent quality, but equipment cost and operating cost compared with
It is high；（2）Bioanalysis：Mainly include activated sludge process, biofilm, using microbial degradation organic pollution sewage is made to obtain only
Change, realize the purpose of Treated sewage reusing, effluent quality height is mainly characterized by, to the variation adaptability of influent quality, water etc.
By force, but there is also operations to manage and protect difficulty, and the shortcomings of take up a large area；（3）Membrane separation process：Main use has selective penetrated property
Membrane material, by the external world apply pressure, make water through film and pollutant therein and salinity are trapped.
The content of the invention
In order to overcome prior art, it is an object of the present invention to provide one kind for cycling
The intermediate water reuse system and processing method of cooling water, simple and reasonable, easy to operation, operation energy consumption is low, and operation stability is high,
Effluent quality is high.
A kind of intermediate water reuse system for recirculated cooling water provided by the invention, including pretreatment section and advanced treating
Section, the pretreatment section is included through the sequentially connected filter tank of pipeline, disinfection unit, former pond and self-cleaning filter, described
Pipeline section between former pond and self-cleaning filter is equipped with elevator pump, and the advanced treating section includes sequentially connected by pipeline
Ultrafiltration film group device, ultrafiltration production pond, cartridge filter, nanofiltration system and nanofiltration production pond, the ultrafiltration produce pond and ensured public security
Pipeline section between filter is equipped with low pressure intake pump, and the pipeline section between the cartridge filter and nanofiltration system is equipped with high-pressure pump, institute
State former pond, ultrafiltration film group device and nanofiltration system and connect strong brine return duct respectively, the strong brine return duct with outside strong brine
Comb connects, and the ultrafiltration film group device includes several tubular units, several described tubular units are set up in parallel vertically, each
Tubular unit is equipped with into water tube connection ports sum aggregate pipe connectors, and the water inlet tube connection ports connect self-cleaning by water inlet pipe
The water outlet of filter, the tube connection ports that catchment connect ultrafiltration by collector pipe and produce pond, and liquid is equipped in the tubular unit
Film.
The disinfection unit uses ozone generator.
Using continuous active sand filter, the continuous active sand filter is interior to be added with sodium hypochlorite in the filter tank.
The raw water collection pond includes intake pool and discharge bay, is offered on the pool wall between the intake pool and discharge bay
Spout hole is equipped with aperture plate at spout hole, and perpendicular gear and the oblique gear with perpendicular gear in angle of 45 degrees are equipped in aperture plate, gear is erected and tiltedly gear is handed over
For fork-shaped into mesh, mesh is square hole, and the perpendicular gear and the infall tiltedly kept off are equipped with stainless steel substrates, and stainless steel substrates are pierced equipped with steel,
Pierce long 1mm.
The center of the intake pool bottom tilts down to form round bucket shape transition face, and the bottom of circle bucket shape transition face connects
Connect sludge pipe.
The nanofiltration system is equipped with concentrated water pipe, water producing pipe, isolating valve, low pressure nanofiltration membrane component, and the concentrated water pipe is placed in low
The water inlet end of nanofiltration membrane component is pressed, the water producing pipe is placed in the water outlet of low pressure nanofiltration membrane component, is set in low pressure nanofiltration membrane component
There is NF membrane, the low pressure nanofiltration membrane component is equipped with several, several low pressure nanofiltration membrane component horizontal parallels are set, and through transport
Row.
The self-cleaning filter includes motor reducer, filter housing, strainer, wiper Combined cleaning system, PLC controller
With motor blowdown valve, filtering accuracy 0.025-6mm.
Using a kind of intermediate water reuse system for recirculated cooling water, centering water process for reclaiming, raw water is passed through
Continuous activity sand filter carries out sterilization and break denitrogenation, and filtering water outlet is transported to ozone generator, carries out sterilizing, water outlet
Water quality reaches ground Table V class, wherein, COD concentration is 18.4mg/L, and ozone generator water outlet comes together in raw water collection pond, boosted
Pump is promoted to self-cleaning filter, and after self-cleaning filter is filtered processing to raw water, raw water is input to ultrafiltration film group device,
Centering water carries out first time filtering, removes the natural organic matter of grain size >=0.02 μm, microorganism, bacterium, virus, ultrafiltration in raw water
Film group device effluent collection is depressured after is produced from pond in ultrafiltration through low pressure intake pump, flows into 5 μm of cartridge filter, cartridge filter
As the postposition preprocessing means of entire technological process, prevent the particle in ultrafiltration production pond and pipeline from entering high-pressure pump and nanofiltration
System, water outlet squeeze into nanofiltration system through high-pressure pump, and after nanofiltration pure water host is further processed, water outlet imports nanofiltration production pond,
Industrial user is supplied to by pipe network, obtained strong brine is partly refluxed to former pond, utilizes once again, partly by strong brine outside
Comb discharges.
A kind of intermediate water reuse system and processing method for recirculated cooling water provided by the invention, its advantage exist
In, pre-processed using continuous flow activity sand filter and ozone generator, water outlet i.e. can reach earth's surface V, meet main process
Inflow requirement, main process use " ultrafiltration film group device+nanofiltration system ", and wherein ultrafiltration film group device water outlet can reach ground Table IV
Class；The nanofiltration system of use has relatively low operating pressure compared with traditional NF membrane, reverse osmosis membrane, and can guarantee higher
Producing water ratio, water outlet can reach ground Table II class, better than municipal water supply, meet industrial water requirement.Therefore, integrated artistic can connect
Continuous stable operation, control management is convenient, and effluent quality is high, and service life is long, and operating pressure is low, and low energy consumption for system operation, reduces
Actual motion cost realizes that water outlet reaches and is better than the water quality requirement of Circulating Cooling Water of Power Plant.
Description of the drawings
Fig. 1 is the overall structure diagram of one embodiment of the invention；
Fig. 2 is wire-grid structure schematic diagram.
It is marked in figure：
1. continuous activity sand filter；2. intake pool；3. discharge bay；4. spout hole；5. aperture plate；6. sludge pipe；7. strong brine returns
Flow tube；8. the outer comb of strong brine；9. elevator pump；10. self-cleaning filter；11. ultrafiltration film group device；12. is produced from pond in ultrafiltration；13.
Low pressure intake pump；14. cartridge filter；15. high-pressure pump；16. nanofiltration system；17. is produced from pond in nanofiltration；18. tubular unit；19.
Stainless steel substrates.
Specific embodiment
With reference to the accompanying drawings, with reference to one embodiment, a kind of middle water for recirculated cooling water provided by the invention is returned
It is described in detail with system and processing method.
Embodiment
With reference to Fig. 1-2, a kind of intermediate water reuse system for recirculated cooling water of the present embodiment, including pretreatment section and depth
Processing section is spent, the pretreatment section is included through the sequentially connected filter tank of pipeline, disinfection unit, former pond and self-cleaning filter
10, the pipeline section between the former pond and self-cleaning filter 10 is equipped with elevator pump 9, and the advanced treating section includes passing through pipeline
Sequentially connected ultrafiltration film group device 11, ultrafiltration production pond 12, cartridge filter 14, nanofiltration system and nanofiltration production pond 17, it is described
The pipeline section that ultrafiltration is produced between pond 12 and cartridge filter 14 is equipped with low pressure intake pump 13, the cartridge filter 14 and nanofiltration system
Pipeline section between system 16 is equipped with high-pressure pump 15, and the former pond, ultrafiltration film group device 11 and nanofiltration system 16 connect strong brine respectively
Return duct 7, the strong brine return duct 7 are connected with the outer comb 8 of strong brine, and the ultrafiltration film group device 11 includes several tubular types member
Part 18, several described tubular units 18 are set up in parallel vertically, and each tubular unit 18 is equipped with into water tube connection ports sum aggregate water
Tube connection ports, the water inlet tube connection ports connect the water outlet of self-cleaning filter 10, the collector pipe connection by water inlet pipe
Mouth connects ultrafiltration by collector pipe and produces pond 12, and liquid film is equipped in the tubular unit.
The disinfection unit uses ozone generator.
Using continuously active sand filter 1, the continuous active sand filter 1 is interior added with sodium hypochlorite, acts in the filter tank
It is sterilization and break denitrogenation.
For collecting pretreatment disinfection unit water outlet, raw water collection pond includes intake pool 2 and water outlet in the raw water collection pond
Pond 3 offers spout hole 4 on the pool wall between the intake pool 2 and discharge bay 3, aperture plate 5 is equipped at spout hole, is set in aperture plate
Have perpendicular gear and an oblique gear with perpendicular gear in angle of 45 degrees, perpendicular gear and tiltedly gear intersects to form mesh, mesh is square hole, the perpendicular gear and
The infall tiltedly kept off is equipped with stainless steel substrates 19, and stainless steel substrates 19 are pierced equipped with steel, and stainless steel substrates are disk, and steel thorn is Y shape, wherein
The top half of Y shape is pricker, and pricker length is 1mm, and the latter half of Y shape is coupling part, which passes through disk
It is fixedly connected with perpendicular gear and the infall tiltedly kept off.
The center of the intake pool bottom tilts down to form round bucket shape transition face, and the bottom of circle bucket shape transition face connects
Connect sludge pipe 6.
The self-cleaning filter includes motor reducer, filter housing, strainer, wiper Combined cleaning system, PLC controller
With motor blowdown valve, filtering accuracy 0.025-6mm can retain the impurity that grain size is more than aperture of filter screen, ensure ultrafiltration system
Operation steady in a long-term.
The ultrafiltration film group device separate unit water-yielding capacity is 3580 m3/d, carries out first time filtering for centering water, removal is former
The natural organic matter of grain size >=0.02 μm, microorganism, bacterium, virus etc. in water.Ultrafiltration film group device delivery turbidity is less than 1NTU,
SDI<3, producing water ratio 90%.
The nanofiltration system is equipped with concentrated water pipe, water producing pipe, isolating valve, low pressure nanofiltration membrane component, and the concentrated water pipe is placed in low
The water inlet end of nanofiltration membrane component is pressed, the water producing pipe is placed in the water outlet of low pressure nanofiltration membrane component, is set in low pressure nanofiltration membrane component
There is NF membrane, the low pressure nanofiltration membrane component is equipped with several, several low pressure nanofiltration membrane component horizontal parallels are set, and through transport
Row.
Using a kind of intermediate water reuse system for recirculated cooling water, centering water process for reclaiming, raw water is passed through
Continuous activity sand filter carries out sterilization and break denitrogenation, and filtering water outlet is transported to ozone generator, carries out sterilizing, water outlet
Water quality reaches ground Table V class, wherein, COD concentration is 18.4mg/L, and ozone generator water outlet comes together in raw water collection pond, boosted
Pump is promoted to self-cleaning filter, and after self-cleaning filter is filtered processing to raw water, raw water is input to ultrafiltration film group device,
Centering water carries out first time filtering, removes the natural organic matter of grain size >=0.02 μm, microorganism, bacterium, virus, raw water in raw water
Entered by one end of film group device, flow through entire film group device under a certain pressure, concentrate is discharged from the other end of film group device, penetrated
Liquid film wall enters film wire center, and every membrane permeate is collected by collector pipe, is pooled to production jellyfish pipe, and water is produced into ultrafiltration
Pond, volume 1500m3.Membrane module results in blockage because retaining pollutant after ultrafiltration film group device operation a period of time, and production water pressure is not
Disconnected increase, is cleaned using combined water and air backwash is periodically counter to ultrafiltration film group device, and anti-ejected wash water uses ultrafiltered product water, is surpassed
Filter section water outlet reaches ground Table IV class.The water outlet of ultrafiltration film group device still containing a small amount of particle, is flowing through ultrafiltration production pond and pipe process
In can also mix a small amount of colloid and particle etc., being directly entered nanofiltration water production system can cause NF membrane to block, increase fouling membrane wind
Danger.Ultrafiltration film group device effluent collection is depressured after is produced from pond in ultrafiltration through low pressure intake pump, flows into 5 μm of cartridge filter, security personnel
Postposition preprocessing means of the filter as entire technological process prevent the particle in ultrafiltration production pond and pipeline from entering high-pressure pump
And nanofiltration system, water outlet squeeze into nanofiltration system through high-pressure pump, after nanofiltration pure water host is further processed, water outlet imports nanofiltration production
Pond is supplied to industrial user by pipe network, and obtained strong brine is partly refluxed to former pond, utilizes once again, partly by dense
The outer comb discharge of brine.
The nanofiltration system uses low pressure nanofiltration membrane component（DF）, wherein separate unit low pressure nanofiltration film group device water-yielding capacity is
3000 m3/d, producing water ratio 70%.Low pressure NF membrane element in parallel is run, and water inlet, production water and concentrated water are by manifold pipe-line systems
It is connected respectively, water inlet enters membranous system by isolating valve, and water is produced after processing and is collected through producing supply mains, is compiled in nanofiltration production pond, receives
Filter production water reaches ground Table II class.Strong brine is collected through strong brine manifold, and part strong brine is back to raw water collection pond, improves system
The rate of recovery；Remainder discharges.Whole system uses PLC robot control system(RCS)s, realizes automation control.
Claims (6)
1. a kind of intermediate water reuse system for recirculated cooling water, it is characterised in that：Including pretreatment section and advanced treating section, institute
Stating pretreatment section is included through the sequentially connected filter tank of pipeline, disinfection unit, former pond and self-cleaning filter, the former pond
Pipeline section between self-cleaning filter is equipped with elevator pump, and the advanced treating section is included through the sequentially connected ultrafiltration membrane of pipeline
Group device, ultrafiltration production pond, cartridge filter, nanofiltration system and nanofiltration production pond, ultrafiltration production pond and cartridge filter it
Between pipeline section be equipped with low pressure intake pump, pipeline section between the cartridge filter and nanofiltration system is equipped with high-pressure pump, the raw water
Pond, ultrafiltration film group device and nanofiltration system connect strong brine return duct respectively, and the strong brine return duct connects with the outer comb of strong brine
It connects, the ultrafiltration film group device includes several tubular units, several described tubular units are set up in parallel vertically, each tubular type member
Part is equipped with into water tube connection ports sum aggregate pipe connectors, and the water inlet tube connection ports connect self-cleaning filter by water inlet pipe
Water outlet, the tube connection ports that catchment connect ultrafiltration by collector pipe and produce pond, and liquid film is equipped in the tubular unit.
2. a kind of intermediate water reuse system for recirculated cooling water according to claim 1, it is characterised in that：The disinfection
Unit uses ozone generator.
3. a kind of intermediate water reuse system for recirculated cooling water according to claim 1, it is characterised in that：The filter tank
Using continuous active sand filter, sodium hypochlorite is added in the continuous active sand filter.
4. a kind of intermediate water reuse system for recirculated cooling water according to claim 1, it is characterised in that：The raw water
Collecting pit includes intake pool and discharge bay, offers spout hole on the pool wall between the intake pool and discharge bay, at spout hole
It is equipped with equipped with aperture plate, in aperture plate and erects gear and the oblique gear with perpendicular gear in angle of 45 degrees, perpendicular gear intersects to form mesh, mesh with tiltedly gear
For square hole, the perpendicular gear and the infall tiltedly kept off are equipped with stainless steel substrates, and stainless steel substrates are pierced equipped with steel, pierce long 1mm.
5. a kind of intermediate water reuse system for recirculated cooling water according to claim 1, it is characterised in that：The nanofiltration
System be equipped with concentrated water pipe, water producing pipe, isolating valve, low pressure nanofiltration membrane component, the concentrated water pipe be placed in low pressure nanofiltration membrane component into
Water end (W.E.), the water producing pipe are placed in the water outlet of low pressure nanofiltration membrane component, NF membrane, the low pressure are equipped in low pressure nanofiltration membrane component
Nanofiltration membrane component is equipped with several, several low pressure nanofiltration membrane component horizontal parallels are set, parallel running.
6. a kind of Treated sewage reusing processing method, it is characterised in that：Raw water carries out sterilization by continuous active sand filter and break takes off
Nitrogen, filtering water outlet are transported to ozone generator, carry out sterilizing, and effluent quality reaches ground Table V class, wherein, COD concentration is
18.4mg/L, ozone generator water outlet come together in raw water collection pond, and boosted pump is promoted to self-cleaning filter, self-cleaning filtering
After device is filtered processing to raw water, raw water is input to ultrafiltration film group device, centering water carries out first time filtering, removes in raw water
The natural organic matter of grain size >=0.02 μm, microorganism, bacterium, virus, ultrafiltration film group device effluent collection is after is produced from pond in ultrafiltration, warp
Low pressure intake pump is depressured, and flows into 5 μm of cartridge filter, and cartridge filter pre-processes hand as the postposition of entire technological process
Section prevents the particle in ultrafiltration production pond and pipeline from entering high-pressure pump and nanofiltration system, and water outlet squeezes into nanofiltration system through high-pressure pump,
After nanofiltration pure water host is further processed, water outlet imports nanofiltration production pond, is supplied to industrial user by pipe network, what is obtained is dense
Salt water part is back to former pond, utilizes once again, is partly discharged by comb outside strong brine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130937.9A CN108101270A (en) | 2018-02-09 | 2018-02-09 | A kind of intermediate water reuse system and processing method for recirculated cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130937.9A CN108101270A (en) | 2018-02-09 | 2018-02-09 | A kind of intermediate water reuse system and processing method for recirculated cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108101270A true CN108101270A (en) | 2018-06-01 |
Family
ID=62222107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810130937.9A Pending CN108101270A (en) | 2018-02-09 | 2018-02-09 | A kind of intermediate water reuse system and processing method for recirculated cooling water |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528688A (en) * | 2003-10-14 | 2004-09-15 | 王元强 | Fully-automatic middle-water deep purifying and regenerating water reuse apparatus and process |
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