CN110092455A - Secondary water-supply is salt-free from sterilization method - Google Patents
Secondary water-supply is salt-free from sterilization method Download PDFInfo
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- CN110092455A CN110092455A CN201910416783.4A CN201910416783A CN110092455A CN 110092455 A CN110092455 A CN 110092455A CN 201910416783 A CN201910416783 A CN 201910416783A CN 110092455 A CN110092455 A CN 110092455A
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- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- 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
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
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- 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
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/29—Chlorine compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
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- Separation Using Semi-Permeable Membranes (AREA)
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Abstract
It is salt-free from sterilization method that the application provides a kind of secondary water-supply, belongs to for public or similar applications total water supply system technical field, by carrying out chlorine residue detection to supplying water, as residual chlorine concentration >=0.1mg/L, water supply is directly entered water supply network；As chlorine content < 0.1mg/L, part is supplied water after being filtered for multiple times, make to be directly entered water supply network in qualified water, it enters the strong brine based on monovalence chloride ion and monovalence sodium ion in hypochlorite generator, liquor natrii hypochloritis is generated after being electrolysed and is put into water supply network.After adopting the above scheme, avoid medicament from adding again, reduce disinfection by-products, safe and reliable secondary water-supply it is salt-free from sterilization method.
Description
Technical field
It is salt-free from sterilization method that this application involves a kind of secondary water-supplies, belongs to for public or similar applications total water supply
Systems technology field.
Background technique
With the continuous quickening of urbanization process, the scale in city expands year by year, and the hydraulic pressure of water transfer pipe network is unable to satisfy length
Distance supplies water, and the secondary water-supply station of diversified forms is come into being.According to fixed in " urban water supply water standard CJ/T206-2005 "
Justice, secondary water-supply refer to water-supplying unit by the water supply from city public water supply and self-built facility, through storage, pressurization or depth
After reason and disinfection, supply water from water supply line or pipe special to user.Common secondary water-supply facility includes cell or building
Interior tank, water pump, roof tank etc..Along with the lengthening of water supply pipe and the development of secondary water supply system, secondary water-supply
Water pollution become new municipal water supply problem, traditional water supply method, easily generation secondary pollution, due to being flowed into water
In the process of pond and water tank, various impurity, pollutant simply access in water very much, especially summer, and water quality is simply changed in quality, become very much
Taste seriously polluted water source, according to the regulation of Drinking Water in China output water, need to retain a certain amount of chlorine residue in output water to guarantee
Pipe network during water delivery can Continuous sterilization, avoid secondary pollution.After tap water enters two for facility, because the residence time
It lengthens, water quality can cause to change because of secondary water-supply facility or other extraneous factors, and common problem is that bacterial regrowth is super
Mark, chlorine content zero.Non-sterile secondary water-supply qualification rate only has 60%-70%.
For the civilian water security of guarantor, secondary water-supply disinfection is the effective ways for guaranteeing qualified secondary water-supply.Conventional
There are two types of processing methods: 1) improve the residual chlorine concentration of output water, 2) and secondary water-supply station adds medicament containing chlorine again.However, improving
Contents of residual chlorine in output water needs to increase adding for the medicament containing chlorine, generates more carcinogenicity disinfection by-products.Simultaneously as
Chlorine residue has highest limit value to limit its maximum level in factory water quality standard, and chlorine residue needed for can not fully meeting remote water delivery contains
Amount.Adding for secondary water-supply station will also introduce additional medicament, to increase the concentration for producing water carcinogenicity disinfection by-products.I
The concentration of disinfection by-products is carried out in state's new drinking water standard " standards for drinking water quality GB5749-2006 " in 2006
Clearly stipulate that wherein Determination of Trichloro Methane limit value is 0.06mg/L, carbon tetrachloride limit value is 0.002mg/L.Therefore, medicine is added
Dosage is few, the few secondary water-supply safe disinfection technology of by-product, is the inevitable development trend for optimizing secondary water-supply safety.
Summary of the invention
In view of this, the application, which provides one kind, can successfully avoid medicament from adding again, reduce disinfection by-products, is safe and reliable
Secondary water-supply it is salt-free from sterilization method.
Specifically, the application is to be concentrated, be electrolysed to the inactivation chloride ion in pending water by the system, to produce
It is raw effectively to consider, to reach sterilisation purpose.
To achieve the above object, the technical solution that the application takes is as follows:
Secondary water-supply is salt-free from sterilization method, carries out chlorine residue detection to supplying water, and as residual chlorine concentration >=0.1mg/L, supplies water
It is directly entered water supply network or water feeding tank；As chlorine content < 0.1mg/L, part is supplied water after concentration is filtered for multiple times, is made
Strong brine based on monovalent ion enters in hypochlorite generator, and liquor natrii hypochloritis is generated after being electrolysed and is put into
In water supply network.
On the one hand reduce the flow pressure of chloride ion activation system using chlorine residue instrument index as the separate system of standard, reduces
Operating cost；On the one hand by the control of contents of residual chlorine, protective effect is played to nano filter membrance device and reverse osmosis membrane apparatus.
Further, as chlorine content < 0.1mg/L, successively through water inlet processing, concentration, electrosterilization three process, water inlet
It is provided with nano filter membrance device in treatment process, after staying water removes divalent ion, is sent into enrichment process；The enrichment process
In be provided with reverse osmosis membrane apparatus, concentrated water case and clear water reserviors, reverse osmosis membrane apparatus is set on the pipeline after nano filter membrance device,
Monovalent ion is isolated, the water body feeding clear water reserviors without monovalent ion are spare, and the water body containing monovalent ion is sent into concentrated water case；
Hypochlorite generator is provided in the electrosterilization process, hypochlorite generator is set to the exit of concentrated water case, secondary
It is connected between sodium chlorate generator and clear water reserviors with pipeline, it is effective chlorine that monovalence chloride ion is converting in concentrated water case, is sent to clear
In pond, the disinfection certainly that secondary system supplies water is realized.
In the program of the application, it is broadly divided into from sterilization method into water processing, concentration and electrosterilization three process,
Nano filter membrance device, reverse osmosis membrane apparatus be set on water inlet pipe, and nano filter membrance device first blocks divalent ion in water body and bigger
Impurity, and guarantee that monovalent ion can pass freely through, complete first of screening；Producing water at this time is to mainly contain sodium ion and chlorine
The light salt brine of ion；Light salt brine is handled through reverse osmosis membrane apparatus, in water sodium ion, chloride ion cannot by reverse osmosis membrane apparatus,
It therefore is clear water by the production water of reverse osmosis membrane apparatus, into clear water reserviors；It is then dense after concentration for being blocked by reverse osmosis membrane apparatus
Salt water；The concentrated water pipe of strong brine is pressed into hypochlorite generator, and electrolysis generates effective chlorine, then is added by medicament pipe into clear water
Pond is discharged by clear water reserviors effective chlorine residue being input into pipe network again.
The system, not only without carrying out additional dosing, reduces disinfection by-products under the premise of guaranteeing to supply water sterilization
It generates, also achieves the activation recycling for inactivating chloride ion in water body, complete the self-sufficient of chloride ion.
On the basis of above scheme, pre-treatment is arranged to entire water system in applicant, and determines more preferred preceding place
Reason setting are as follows: the water inlet pipe is provided with more medium filter, more medium filter is located in front of nano filter membrance device, crosses drainage
In biggish impurity.
More medium filter tentatively removes the divalent ions such as deliming, magnesium to the water body progress that water inlet pipe enters, and demineralized water is gone
Divalent ion in water removal completes the pre-treatment to water body, to reduce the processing pressure of nano filter membrance device, reverse osmosis membrane apparatus.
It is furthermore preferred that the more medium filter is at least provided with two, two more medium filters be arranged in series in into
On water pipe, and it is respectively positioned in front of nano filter membrance device.
Twice are at least arranged in more medium filter, and different water bodys are carried out with different degrees of softening, to ensure to enter nanofiltration
Water stabilization when film device and reverse osmosis membrane apparatus.
On the basis of above scheme, applicant has done nano filter membrance device and has been preferably provided with as follows, and the nano filter membrance device is matched
Conjunction is provided with aflter-fillter, and aflter-fillter is located in front of nano filter membrance device, the removal to water body further progress impurity.
Aflter-fillter is arranged as pretreatment procedure, is conducive to the treatment effeciency for improving water body, and reduces nanofiltration membrane dress
It sets, the processing pressure of reverse osmosis membrane apparatus etc., improves the practical utility value of nano filter membrance device, reverse osmosis membrane apparatus.
Therefore, more it is furthermore preferred that being equipped with more medium filter and aflter-fillter in front of the nano filter membrance device
Medium filter is arranged before residual chlorine detecting instrument, and aflter-fillter is arranged after residual chlorine detecting instrument.Pass through multi-medium filtering
Chlorine residue detection is carried out to water body again after device filtering.
It is preferable to use cartridge filter, the fine particles of 1 degree of turbidity of removal or more to avoid grease etc. big for aflter-fillter
Grain enters at the later process such as nano filter membrance device, reverse osmosis membrane apparatus.
On the basis of above scheme, applicant has done nano filter membrance device and has been preferably provided with as follows: the nano filter membrance device is matched
Conjunction is provided with nanofiltration high-pressure pump, realizes the regulation of pressure, to cooperate the high efficiency filter of nano filter membrance device to use.
On the basis of above scheme, applicant has done nano filter membrance device and has been preferably provided with as follows: the nano filter membrance device is also
It is provided with delivery pipe, it is impossible to be discharged through delivery pipe as invalid electrolyte by the water body of nano filter membrance device.
Two outlets are arranged in nano filter membrance device, and one outlet is connected to reverse osmosis membrane apparatus, will pass through nano filter membrance device
Water body is transported in reverse osmosis membrane apparatus, continues to post-process；Another outlet then connects invalid electrolyte delivery pipe, it is impossible to
It is discharged by the invalid electrolyte of nano filter membrance device, avoids delay of the excessive waste water at nano filter membrance device, improve whole system
Treatment effeciency.
On the basis of above scheme, applicant has done reverse osmosis membrane apparatus and has been preferably provided with as follows: the reverse osmosis membrane dress
It sets and is equipped with reverse osmosis high-pressure pump, by penetrating reverse osmosis membrane apparatus using pressure official post water, to improve reverse osmosis membrane
The working efficiency of device.
On the basis of above scheme, applicant is further to hypochlorite generator to be studied, and determination is more preferred
Be provided that between the concentrated water case and hypochlorite generator and be provided with booster pump, to ensure that concentrated water case water body is smoothly arranged
Enter in hypochlorite generator.
Above scheme provided by applicant realizes the light electrolysis continuous disinfection of city secondary water-supply, by water
The inactivation chloride ion deposited is concentrated, is electrolysed, and is generated effective chlorine and is reached disinfection.Such processing mode successfully avoids
The addition again of medicament, and reduce the generation of disinfection by-products, using safer reliable in secondary water supply system, more
Be conducive to resident's health.The system can not only be carried out under the scene of secondary water-supply using in the confession of China's rural potable water
Also there is very big application space in the inconvenient place of the medicaments such as water station transport；It is made to solve the water quality security of rural potable water
Significant contribution.
Detailed description of the invention
Fig. 1 is the flow diagram of the application；
Figure label: 1. water inlet pipes；11. more medium filter；2. aflter-fillter；3. nano filter membrance device；31. nanofiltration is high
Press pump；32. delivery pipe；4. residual chlorine detecting instrument；5. reverse osmosis membrane apparatus；51. reverse osmosis high-pressure pumps；52. water pipe is concentrated；6. clear water
Pond；7. hypochlorite generator；71. medicament pipe；72. booster pump；8. concentrated water case.
Specific embodiment
Present case secondary water-supply is salt-free from sterilization method, is carried out first at water inlet pipe 1 by 4 pairs of water supply of residual chlorine detecting instrument
Chlorine residue detection, as residual chlorine concentration >=0.1mg/L, water supply is directly entered the use of 6 work water supply network (water feeding tank) of clear water reserviors；When remaining
When chlorine number < 0.1mg/L, staying water is successively through water inlet processing, concentration, electrosterilization three process, then puts into water supply network
In；In treatment process of intaking, by multistage filtering, after staying water removes divalent ion, it is sent into enrichment process；Enrichment process
In be provided with reverse osmosis membrane apparatus 5, concentrated water case 8 and clear water reserviors 6, reverse osmosis membrane apparatus 5 filters out monovalent ion, be free of monovalent ion
Water body be sent into clear water reserviors and can be used as after sterilization and produce water and be delivered to user terminal, water body containing monovalent ion is sent into concentrated water case 8；
Hypochlorite generator 7 is provided in electrosterilization process, hypochlorite generator 7 is set to the exit of concentrated water case 8, secondary chlorine
It is connected between sour sodium generator 7 and clear water reserviors 6 with medicament pipe 71, it is effective chlorine that monovalence chloride ion is converting in concentrated water case, is sent
Into clear water reserviors 6, the disinfection certainly that secondary system supplies water is realized.
It is above-mentioned to be completed from sterilization method in such as flowering structure from decontamination system as a concrete operations mode: should
It include water inlet pipe 1, nano filter membrance device 3, reverse osmosis membrane apparatus 5, concentration water pipe 52,7 and of hypochlorite generator from decontamination system
Medicament pipe 71, nano filter membrance device 3, reverse osmosis membrane apparatus 5 are set in turn on the pipeline of water inlet pipe 1, after the processing of nano filter membrance device 3
Water be sent into reverse osmosis membrane apparatus 5, after the processing of reverse osmosis membrane apparatus 5, clear water is sent by the qualified water of reverse osmosis membrane apparatus 5
Pond 6 is not sent by the concentrated water pipe 52 of water of reverse osmosis membrane apparatus to concentrated water case 8, and concentrated water case 8 is connected with hypochlorite generator
7, be connected between hypochlorite generator 7 and clear water reserviors 6 with medicament pipe 71, the water of concentrated water case 8 through hypochlorite generator 7 at
Reason, the effective chlorine for being electrolysed generation are sent into clear water reserviors 6, the i.e. disinfection certainly of realization whole system water by medicament pipe 71.
In this scenario, nano filter membrance device 3, reverse osmosis membrane apparatus 5, the preferred divalent of nano filter membrance device 3 are set on water inlet pipe 1
4 inches or eight inches nano filter membrance devices of the high rejection of ion, nano filter membrance device 3 can be used multiple concatenated modes and connect, first hinder
The divalent ion cut off the water supply in body, and guarantee that monovalence sodium ion, monovalence chloride ion can pass freely through, complete first of screening；
Producing water at this time is the light salt brine for mainly containing sodium ion and chloride ion；Then the light salt brine is handled through reverse osmosis membrane apparatus 5 again, instead
Permeable membrane device 5 can also be arranged using multiple concatenated modes.Sodium ion, chloride ion cannot pass through reverse osmosis membrane apparatus in water
5, therefore be clear water by the production water of reverse osmosis membrane apparatus 5, into clear water reserviors 6；By reverse osmosis membrane apparatus 5 block then for concentration
Strong brine afterwards；The concentrated water pipe 52 of strong brine is pressed directly into hypochlorite generator 7, or is first pressed into concentrated water case 8, then through dense
Water tank 8 is pressed into hypochlorite generator 7 after standing, effective chlorine yield 5-10g/h has through the electrolysis of hypochlorite generator 7
Chlorine is imitated, then is added by medicament pipe 71 into clear water reserviors 6, is discharged by clear water reserviors 6 and effective chlorine residue is input into pipe network again.The system exists
Under the premise of guaranteeing supply water sterilization, not only without carrying out additional dosing, the generation of carcinogenicity disinfection by-products is reduced, is also realized
The activation that chloride ion is inactivated in water body recycles, and completes the self-sufficient of chloride ion.
On the basis of above-mentioned case, nano filter membrance device can also carry out in the following way mating setting:
Nano filter membrance device 3 is equipped with aflter-fillter 2, and aflter-fillter 2 is located at 3 front of nano filter membrance device, to water
The removal of body progress impurity.Aflter-fillter 2 is arranged as pretreatment procedure, is conducive to the treatment effeciency for improving water body, and drop
The processing pressure of low nano filter membrance device 3, reverse osmosis membrane apparatus 5 etc. improves the practical benefit of nano filter membrance device 3, reverse osmosis membrane apparatus 5
With value.Aflter-fillter 2 removes 1 degree of turbidity or more it is preferable to use the cartridge filter that big flux, 5 microns retain aperture
Fine particles avoid the bulky grains such as grease from entering at the later process such as nano filter membrance device 3, reverse osmosis membrane apparatus 5.
Water inlet pipe 1 is provided with more medium filter 11, more medium filter 11 is located at 3 front of nano filter membrance device.It is be situated between more
Mass filter 11 carries out preliminary removal large granular impurity to the water body that water inlet pipe 1 enters, and completes the pre-treatment to water body, to reduce
The processing pressure of nano filter membrance device 3, reverse osmosis membrane apparatus 5.More medium filter 11 is preferably provided with multiple (such as two), multiple
More medium filter 11 is arranged in series on water inlet pipe 1, and is respectively positioned on 3 front of nano filter membrance device.More medium filter 11 is at least
Twice are set, to ensure water stabilization when entering nano filter membrance device 3 and reverse osmosis membrane apparatus 5.
On the basis of above scheme, nano filter membrance device 3 is equipped with nanofiltration high-pressure pump 31, realizes the regulation of pressure, with
Cooperate the high efficiency filter of nano filter membrance device 3.
On the basis of above scheme, for the setting of nano filter membrance device 3 there are two outlet, one outlet is connected to reverse osmosis membrane apparatus
5, another outlet is provided with delivery pipe 32, it is impossible to is discharged through delivery pipe 32 as waste water by the water body of nano filter membrance device 3.
At this point, nano filter membrance device 3 forms two outlets, one outlet is connected to reverse osmosis membrane apparatus 5, will pass through nano filter membrance device 3
Water body is transported to reverse osmosis membrane apparatus 5, continues to post-process；Another outlet then connects delivery pipe 32, it is impossible to pass through nanofiltration
The waste water of film device 3 is discharged, and avoids delay of the excessive waste water at nano filter membrance device 3, improves the treatment effeciency of whole system.
On the basis of above scheme, reverse osmosis membrane apparatus 5 is equipped with reverse osmosis high-pressure pump 51, realizes the tune of pressure
Control, to cooperate the high-effective penetrating of reverse osmosis membrane apparatus 5.
On the basis of above scheme, booster pump 72 is provided between concentrated water case 8 and hypochlorite generator 7, it is dense to ensure
8 water body of water tank is smoothly discharged into hypochlorite generator 7.
Consider from above-mentioned practical solution, residual chlorine detecting instrument 4 is arranged between more medium filter and aflter-fillter, first
It is detected after the primary filtration of more medium filter, then to chlorine residue, judges whether to further concentrated extract time chlorine
Acid sodium solution carries out disinfection or is directly thrown into water supply network.
Above scheme provided by applicant realizes the light electrolysis continuous disinfection of city secondary water-supply, by water
The inactivation chloride ion deposited is concentrated, is electrolysed, and is generated effective chlorine and is reached disinfection.Such processing mode successfully avoids
The addition again of medicament, and reduce the generation of disinfection by-products, using safer reliable in secondary water supply system, more
Be conducive to resident's health.The system can not only be carried out under the scene of secondary water-supply using in the confession of China's rural potable water
Also there is very big application space in the inconvenient place of the medicaments such as water station transport；It is made to solve the water quality security of rural potable water
Significant contribution.
The application technical problems to be solved are how to efficiently use original chloride ion in the water of source, and electrolysis generates effective
Chlorine completes the disinfection of water.Above system provided by present case is respectively constituted by each component into water treatment region, enrichment region and electrolysis
Sterile zones: water inlet treatment region includes more medium filter 11, (security personnel) aflter-fillter 2, nanofiltration booster pump 31, nano filter membrance device
3, the main purpose for treatment region of intaking is demineralized water, removal impurities in water and divalent ion, so that water inlet reaches into concentration
The water quality requirement in area；Enrichment region includes reverse osmosis booster pump 51, reverse osmosis membrane apparatus 5, clear water reserviors 6 and concentrated water case 8, in water chlorine from
Son is concentrated in region completion, is further processed wherein reverse osmosis concentrated shrink will enter electrosterilization area；Electrosterilization
Area includes booster pump 72 and hypochlorite generator 7, effective disinfectant is generated by the electrolysis to strong brine, by disinfectant
Clear water reserviors 6 are transported to, water supply network is inputted later and completes disinfection.
Effect
The implementation result of technical scheme is mainly reflected in several aspects:
(1) secondary water-supply station and the transport of Rural water supply station medicament, storage inconvenience are solved the problems, such as；
(2) sterilization problems of secondary water-supply and Rural water supply are solved, prestige of the germ contamination to people's health in reduction water
The side of body；
(3) using having chloride ion implementation disinfection in water, adding again for disinfectant is successfully avoided, is reduced carcinogenic
The generation of property disinfection by-products, is conducive to the health of user；
(4) application of the membrane technology in secondary water-supply keeps equipment cost controllable, the meaning with practical application.
Claims (9)
1. secondary water-supply is salt-free from sterilization method, it is characterised in that: chlorine residue detection is carried out to supplying water, as residual chlorine concentration >=0.1mg/
When L, water supply is directly entered water supply network or water feeding tank；As chlorine content < 0.1mg/L, part is supplied water dense by being filtered for multiple times
It after contracting, enters the strong brine based on monovalent ion in hypochlorite generator, it is molten that sodium hypochlorite is generated after being electrolysed
Liquid is put into water supply network.
2. secondary water-supply according to claim 1 is salt-free from sterilization method, it is characterised in that: as chlorine content < 0.1mg/L
When, successively through water inlet processing, concentration, electrosterilization three process, it is provided with nano filter membrance device in treatment process of intaking, it is to be processed
After water body removes divalent ion, it is sent into enrichment process；Reverse osmosis membrane apparatus, concentrated water case and clear water are provided in the enrichment process
Pond, reverse osmosis membrane apparatus are set on the pipeline after nano filter membrance device, isolate monovalent ion, the water body without monovalent ion
Feeding clear water reserviors are spare, and the water body containing monovalent ion is sent into concentrated water case；Sodium hypochlorite is provided in the electrosterilization process
Generator, hypochlorite generator are set to the exit of concentrated water case, are connected between hypochlorite generator and clear water reserviors with pipeline
Logical, it is effective chlorine that monovalence chloride ion is converting in concentrated water case, is sent into clear water reserviors, realizes sterilizing certainly for secondary system water supply.
3. secondary water-supply according to claim 1 is salt-free from sterilization method, it is characterised in that: the nano filter membrance device cooperation
It is provided with nanofiltration high-pressure pump.
4. secondary water-supply according to claim 1 is salt-free from sterilization method, it is characterised in that: the reverse osmosis membrane apparatus is matched
Conjunction is provided with reverse osmosis high-pressure pump.
5. secondary water-supply according to claim 1 is salt-free from sterilization method, it is characterised in that: the concentrated water case and hypochlorous acid
Booster pump is provided between sodium generator.
6. secondary water-supply according to claim 1-5 is salt-free from sterilization method, it is characterised in that: the nanofiltration membrane
It is equipped with more medium filter and aflter-fillter in front of device, residual chlorine detecting instrument setting is in more medium filter and secondary
Between filter.
7. secondary water-supply according to claim 6 is salt-free from sterilization method, it is characterised in that: the more medium filter is extremely
There are two few settings, and two more medium filters are arranged in series on water inlet pipe, and is respectively positioned in front of nano filter membrance device.
8. secondary water-supply according to claim 6 is salt-free from sterilization method, it is characterised in that: the aflter-fillter uses
Cartridge filter.
9. secondary water-supply according to claim 8 is salt-free from sterilization method, it is characterised in that: the more medium filter is set
It is equipped with multiple, multiple more medium filters are arranged in series on water inlet pipe, and are respectively positioned in front of filter；Aflter-fillter uses
Cartridge filter, between nano filter membrance device and more medium filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416783.4A CN110092455A (en) | 2019-05-20 | 2019-05-20 | Secondary water-supply is salt-free from sterilization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416783.4A CN110092455A (en) | 2019-05-20 | 2019-05-20 | Secondary water-supply is salt-free from sterilization method |
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| Publication Number | Publication Date |
|---|---|
| CN110092455A true CN110092455A (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910416783.4A Pending CN110092455A (en) | 2019-05-20 | 2019-05-20 | Secondary water-supply is salt-free from sterilization method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202265447U (en) * | 2011-09-30 | 2012-06-06 | 福建方明环保科技有限公司 | Water sterilization device for secondary water supply facilities |
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| CN104030498A (en) * | 2014-05-21 | 2014-09-10 | 国家电网公司 | By-pass flow treatment method for circulating water from power plant |
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| CN109336243A (en) * | 2018-10-24 | 2019-02-15 | 西安建筑科技大学 | A kind of method and system of complex loop control secondary water-supply chlorination |
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2019
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| CN202265447U (en) * | 2011-09-30 | 2012-06-06 | 福建方明环保科技有限公司 | Water sterilization device for secondary water supply facilities |
| CN103626271A (en) * | 2013-12-03 | 2014-03-12 | 安徽舜禹水务实业有限公司 | Secondary water supply quality monitoring and purification device for high-volume water tank |
| CN104030498A (en) * | 2014-05-21 | 2014-09-10 | 国家电网公司 | By-pass flow treatment method for circulating water from power plant |
| CN105314773A (en) * | 2014-07-10 | 2016-02-10 | 王辛平 | Wet desulphurization wastewater recycling method and apparatus thereof |
| CN105502758A (en) * | 2015-12-11 | 2016-04-20 | 河北省电力建设调整试验所 | Method for recycling and treating reclaimed wastewater of makeup water treatment system of power plant |
| CN205222905U (en) * | 2015-12-18 | 2016-05-11 | 魏广艳 | Take secondary water supply system of water purification advanced treatment |
| CN109336243A (en) * | 2018-10-24 | 2019-02-15 | 西安建筑科技大学 | A kind of method and system of complex loop control secondary water-supply chlorination |
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