CN105712445B - For deep purifying city for the pretreatment unit of tap water - Google Patents
For deep purifying city for the pretreatment unit of tap water Download PDFInfo
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- CN105712445B CN105712445B CN201610221614.1A CN201610221614A CN105712445B CN 105712445 B CN105712445 B CN 105712445B CN 201610221614 A CN201610221614 A CN 201610221614A CN 105712445 B CN105712445 B CN 105712445B
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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
- C02F1/46104—Devices therefor; Their operating or servicing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
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Abstract
The present invention relates to a kind of for deep purifying city for the pretreatment unit of tap water, including the pairs of electrode of negative and positive, for the electrolysis power and water container of electrode power supply, water container is equipped with inlet and outlet；Pairs of electrode has two pairs, it is first electrode pair and second electrode pair respectively, the moon of first electrode pair, the first water penetration diaphragm is equipped between positive electrode, the moon of second electrode pair, the second water penetration diaphragm is equipped between positive electrode, first, second water penetration diaphragm is respectively by the positive electrode of first electrode pair, the negative electrode of second electrode pair is separated with water container, the negative electrode of first electrode pair and the positive electrode of second electrode pair are respectively positioned in water container, the negative electrode of first electrode pair, the positive electrode of second electrode pair is in direct contact with the water in water container, the positive electrode of first electrode pair, the negative electrode of second electrode pair is only contacted with the infiltration water of water container.The device can inactivate bacterium in the water of source, source of degradation Organic substance in water and the hardness that can reduce source water.
Description
Technical field
The present invention relates to a kind of for deep purifying city for the pretreatment unit of tap water, and it is deep to belong to Drinking Water water quality
Spend processing technology field.
Background technology
Water pollution is mainly that the pollutant that is generated by mankind's activity causes, it includes industrial pollution source, agricultural pollution source with
Domestic pollution source three parts.Increasingly the water pollution aggravated constitutes significant threat to the living safety of the mankind, and it is strong to become the mankind
The major obstacles of health, economy and social sustainable development.It investigates according to authoritative institution of the world, is at least made because drinking unhygienic water every year
Dead at global 20,000,000 people, therefore, water pollution is referred to as " world's number one killer ".
People are usually using tap water as drinking water at present, but domestic and international most of waterworks are so far still using heavy
It forms sediment, filter, the outmoded process of chlorination, river or underground water are simply processed into drinkable water.However, facing work
Industry sewage, rural sewage and sanitary sewage wildness, which are spread unchecked, pours in life water source, and waterworks can't bear the heavy load helpless.Again
In addition tap water, which is reached from water factory through water transfer pipe network and high-rise water tank, adds pollution caused by drinking water terminal, municipal administration is originally
It is health that water dare not have been said.Especially, it although tap water chlorination can be killed effectively except germ, also will produce simultaneously more
The content of halogenated hydrocarbon compound, these chlorinated organics is multiplied, and is the significant source for causing the mankind to suffer from various diseases, even if
It is boiling tap water, what above-mentioned residue still drove does not go, and the carcinogenic substances such as nitrite and chloroform can also increased.Also
Even if that is, being also not high using municipal tap water as the safety coefficient of the drinking water of source water.
In daily life, drinking water needs often have the characteristics that at times, it is intermittent.For example, family's three meals water and
Bathing peak is concentrated mainly on the time in the morning, afternoon and evening；Wash water then presses week/time calculating.Water storage apparatus is drunk in daily life,
Logical refer to carries water tank（Tank, container）Drinking water terminal, such as：1）It is pipeline water cleaning systems terminal wall hanging machine, desk-top or vertical
Water dispenser；2）RO water purification machines are discharged pressure store bucket（Case）And water glass, pot；3）Public supply mains skyscraper top layer
The high water tank or even rural resident's groundwater abstraction of installation to roof water tank.General character existing for such system is asked at present
Topic is that bacterial micro-organism is exceeded in water in water tank, and it is smelly to seriously affect water quality even peculiar smell.The solution that there is no so far.
Since direct drinking public water supply is difficult to ensure that safety, water purifier are come into being, become common people's hard requirement.However, existing
Using city for tap water as the purification of water quality product or drinking water related product of source water, essentially medium absorption or use various bore filters
Water pollutant is intercepted the physical treatment technology filtered out by film.Since activated carbon class sorbing material is easy to saturation failure,
And various filter membranes are easy to be contaminated by bacterial or organic matter obstruction or damaged, therefore actual conditions be can not be as theory is set
It is accomplished like that the sufficiently cleaned up of water pollutant desired by meter.In face of the source water pollution of getting worse, existing physics mode
Treatment process far can not ensure water quality reaching standard.In addition, waste of traditional RO membrane reverse osmosis filter method to water resource
It is very serious, it often purifies 1 liter of pure water and just needs 3 liters of concentration waste water of discharge.But also have can for physics mode water treatment technology
Take place：Usually do not generate toxic byproduct.
In comparison, though Water Treatment technique has cheap many advantages, such as being simple and efficient, and it is unsuitable for civilian
Terminal Drinking Water field.To find out its cause, one is that Water Treatment technique needs the enough reaction time, and in daily life
With water occasion, water purifier is from booting water inlet to water outlet only several seconds or even shorter, and the residence time is too in water purifier for pollutant
It is short, have little time to complete related chemistry reaction treatment at all；The second is Water Treatment technique is usually made with certain poison is secondary
With.For example, although chemical oxidation reaction can potent inactivation of bacterial, depth degradation organic matter, go water removal in various harmful substances,
But all kinds of Strong oxdiative factors that chemical oxidization method is generated are substantially non-selectivity, uncontrollable, if dealing with improperly most probably raw
The novel substance not having in Cheng Yuanshui even strong carcinogen, jeopardizes safe drinking water instead.And reduction reaction controls improper also bring along
Similar problems, such as nitrate may be converted into strong carcinogen nitrite；Just because of this, in common people's daily life drinking water
Purified treatment occasion can be described as abstaining from not deep and double cautious for the application of Water Treatment technique.
Applicant has found by long-term experiment and actual practice, in contrast, electrochemistry as a kind of advanced oxidation water at
Science and engineering skill is known as " 21 century green technology ", and attached poison seondary effect is small, and electrochemical far beyond conventional chemical water treatment technology
The reaction time can be reduced by the adjustment of electrical parameter come intensive treatment intensity by learning water treatment technology.Therefore, electro-chemical water is handled
Technology should be the first choice for overcoming physics water treatment technology weakness, can be used for Drinking Water purified treatment.
But still belong to chemical treatment technology in electrochemical nature, even toxic side effect is small again, still there are the Biological indicators for making water
The risk of reduction, such as anode reaction will produce chlorate, hypochlorite with strong oxidizing property etc. and H in water2O2、O3
Equal carcinogenic substances.In the unprecedented serious pollution of water environment, conventional physical water purifier today unable to do what one wishes, close examination research again
Water Treatment --- the possibility that especially electrochemical water treatment technology is applied in Drinking Water purified treatment, innovative development
It is a kind of efficiently to remove water pollutant and the electrochemical treatments technique of non-toxic by-products or even electro-chemical water treatment process
Completely new method for purifying water and device, are of great practical significance associated with being cooperateed with physisorptive filter technique.
Invention content
Present invention solves the technical problem that being：It is proposed that one kind can inactivate bacterium in the water of source, source of degradation Organic substance in water and energy
Enough reduce pretreatment unit of the purification city for tap water of the hardness of source water.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention is：One kind is for deep purifying city for originally
The pretreatment unit of water, including the pairs of electrode of negative and positive, for the electrolysis power and water container of electrode power supply, it is described to be filled with water
Container is equipped with inlet and outlet；The pairs of electrode has two pairs, is first electrode pair and second electrode pair respectively, described
It is equipped with the first water penetration diaphragm between the yin, yang electrode of first electrode pair, is equipped between the yin, yang electrode of the second electrode pair
Second water penetration diaphragm, the first, second water penetration diaphragm is water penetration diaphragm made of non-conducting material；Described first
Water penetration diaphragm separates the positive electrode of first electrode pair with water container, and the second water penetration diaphragm is by second electrode pair
Negative electrode is separated with water container；When in use, the positive electrode of the negative electrode of the first electrode pair and second electrode pair with
Water in water container is in direct contact, the positive electrode of the first electrode pair only with pass through first water penetration in water container
The infiltration water contact of diaphragm exudation, the negative electrode of the second electrode pair only in water container by second water penetration every
The infiltration water contact of film exudation.
It should be noted that apparatus of the present invention processing to seeming city for tap water, as described in the background art, now
Water pollution getting worse, city have become a kind of micro-polluted water for tap water（Special contamination water in other words）, pollution sources packet
Include environmental pollution（Such as pesticide residue）, the pollution that generates of chlorination and pipeline secondary pollution etc..
The working mechanism and advantageous effect of technical solution disclosed in aforementioned present invention are presented below.
The structure feature of the present invention is that the water container is boundary with the first, second water penetration diaphragm, first electricity
Extremely to setting up separately in the first water penetration diaphragm both sides, the negative electrode of the first electrode pair is in water container, and its positive electrode exists
Outside water container；The second electrode to setting up separately in the second water penetration diaphragm both sides, containing by the positive electrode of the second electrode pair
In water container, and its negative electrode is outside water container.Certainly, as water container is internally provided with cavity, first or second water penetration
Diaphragm is arranged on cavity shell, then the positive electrode of negative electrode or first electrode pair that the second electrode pair in cavity is arranged regards
To be arranged outside water container.
1）First by taking first electrode pair as an example, the positive electrode of first electrode pair only with first is penetrated through in water container thoroughly
The infiltration water of aqueous diaphragm contacts（Positive electrode is not in direct contact with the water of water container）, anode direct oxidation reaction is transferred to
It is carried out outside water container, reaction product of anode is drained outside container, will not be returned again to and be polluted water quality in container.Meanwhile in water
Negative pollutant is acted on such as chlorine residue, various harmful anions by anode voltage, and first can also be penetrated from water in container
It is outer with infiltration water discharge to move to water container for water penetration diaphragm.
The structure of the first water penetration diaphragm shows as the water passage region of countless permeable micropores on microcosmic in the present invention,
Since the first water penetration diaphragm is made of non-conductive material, thus voltage drop is generated in the water passage of permeable micropore, i.e.,
When the decomposition voltage of electrolysis power is applied to external electrode（Positive electrode）With interior electrode（Negative electrode）Afterwards, following voltage landing is formed
Relationship：The outer positive electrode of first water penetration diaphragm（+）The voltage drop U1 of moisture film between → positive electrode and the first water penetration diaphragm → thoroughly
The anti-production of water resistance between the negative electrode in the water penetrations of pressure drop U2 → first diaphragm and water container that aqueous diaphragm direct impedance generates
Raw voltage drop U3.
And the gas that liberation of hydrogen when water electrolysis, oxygen evolution reaction generate easily enters in the water passage of permeable micropore and
Bubble is generated in water in water passage, gas in the narrow environment in the water passage of the permeable micropore of the first water penetration diaphragm
Bubble is easy to be crushed to generate localized hyperthermia's high pressure, and then inspires efficient water body plasma discharge with minimum voltage,
Generate in first water penetration diaphragm and in the first water penetration diaphragm neighboring area water hydroxyl free base class transient state oxidation factor etc.
Gas ions（Plasma is the 4th state of substance that same level is in solid-state, liquid, gaseous state, and low temperature plasma is rich in electricity
Son, ion, free radical and excited state molecule, electronics and ion have very high reactivity, can make to be difficult under usual conditions into
The chemical reaction that row or speed are difficult becomes very rapid, is discharged by water body and generates plasma group, can greatly improve water body
The degradation efficiency of middle pollutant）, the oxidisability of the hydroxyl radical free radical transient state oxidation factor is extremely strong（More than ozone）, while in water
Existence time it is again extremely short, therefore can be after generation rapidly to Organic substance in water（Such as bacterium）Equal pollutants form extremely strong drop
It is reduced directly to water after solution effect and itself rapid oxidation, does not stay any toxic side effect.
2）Second electrode pair is similar with first electrode pair, but the direction of voltage landing is opposite.Therefore likewise, in the present invention
The negative electrode of second electrode pair contacts with the infiltration water of the second water penetration diaphragm and is to ensure that the electrolysis of second electrode pair is anti-
It should be normally carried out, the second water penetration diaphragm is also made of non-conducting material, therefore can also generate the hydroxyl of a large amount of strong sterilizing abilities
Base radical type transient state oxidation factor.
Meanwhile under the action of second electrode pair, the metal cations such as calcium ions and magnesium ions, ferrimanganic in the endogenous water of water container
It is precipitated Deng lasting, the second water penetration diaphragm is passed through to be discharged so that the hardness of water continues to decline in water container, and weight is harmful in the water of source
Metal etc. gradually removes；And the direct oxidation based on the positive electrode of second electrode pair in water container acts on, and it is micro- in the water of source
Biology is inactivated, and organic matter is degraded.
3）The negative electrode of first electrode pair and the equivalent composition third group electrode pair of the positive electrode of second electrode pair（Yin, yang electricity
Without diaphragm between pole）, so that the microorganism in the water of source is inactivated under its electric field action, the purification that can more preferably play electrochemistry is made
With.
In summary, of the invention by calcium ions and magnesium ions, the chlorate of ferrimanganic and strong oxidizing property, hypochlorite in the water of source first
It is discharged from water container, and sterilization and organic matter degradation is carried out to source water by hydroxyl free base class transient state oxidation factor, from
And relatively pure water is obtained, existing physical absorption-filtration, purification water installations can be used as（As traditional RO membrane reverse osmosis filters
Water-purifying apparatus or activated carbon adsorption device etc.）Front end, pass through the physical absorption or filtering of existing physical cleaning water installations
A small amount of toxic byproduct can easily be removed（Toxic byproduct is only a small amount of H2O2And O3, H2O2And O3Half life of decomposition
It is usually no more than half an hour, will not only generate harmful effect to the filter assemblies or absorbent module of rear end, but also can be right
It filters component or absorbent module carries out sterilizing）, to obtain the purified water of depth.
Secondly, front end of the present invention as existing physical absorption-filtration, purification water installations can mitigate membrane filtration group significantly
The live load of part either absorbent module protects physics filter assemblies or physical absorption component etc., to significantly continuation
The service life for managing the net water-purifying apparatus of absorption-filtering, achievees the effect that take stopgap measures and effect a permanent cure（Purification service life length and generated
Water water quality is good）.
Finally, since the first, second water penetration diaphragm obtains the clamping protection of paired electrode in the present invention, experiment proves,
First, second water penetration diaphragm will not be scrapped in use because of premature failures such as damaged or obstructions, remain that stabilization can
By working condition；Even if it is also scum loosely occasionally to have fouling in the first, second water penetration diaphragm and electrode surface, it is being electrolysed
The decomposition voltage polarity for the paired electrode for being applied to the first, second water penetration diaphragm both sides is suitably switched in the process, so that it may with very
Readily deposition fouling of the removal anions and canons precipitate in electrode and water penetration membrane surface.
The present invention can also periodically swing to the polarity of two electrodes pair, at this time voltage according to actual needs when implementing
Grade can not also be identical, to make the first, second water penetration diaphragm alternating degradation of organic substances, discharge harmful heavy metal ions,
Or the chlorine residue of discharge residual, various harmful anions etc., the quality of purified water can be not only further increased in this way, given full play to
The catharsis of electrochemistry, and the first, second water penetration diaphragm can be protected, extend its service life.
In addition, in order to further increase plasma discharge characteristic in film, the first, second water penetration diaphragm can be made equal
Using hydrophilic water penetration diaphragm.Hydrophilic film surface energy forms hydrogen bond ordered structure with water, can improve the leaching of fenestra water-filling
Profit state, the plasma discharge process in film that is conducive to persistently carry out.
Preferably, the size and shape of the permeable micropore of the first water penetration diaphragm is essentially identical, and described second is permeable
The size and shape of the permeable micropore of property diaphragm is also essentially identical.
In the present invention, if excessive be equivalent in the aperture of the permeable micropore of the first, second water penetration diaphragm in a disguised form increases
Electrode diameter（Electrode curvature radius）Cause discharge in water starting excitation voltage to increase, and generation bubble volume is made to become larger reduction
Gas-liquid two-phase catalytic specific surface area.And if the aperture of the permeable micropore of the first, second water penetration diaphragm is too small（I.e.
The permeable aperture of micropore is too small）, the gas that electrolysis generates can be made to cannot be introduced into the aperture of permeable micropore（Also gas can not just be generated
Bubble）, to make plasma discharge that can not be normally carried out.Therefore, by the repetition test of inventor, determine that first, second is permeable
Property diaphragm the pore diameter range of permeable micropore be less than 2 millimeters and be more than 1 nanometer, and the aperture size of permeable micropore is mutual
Difference is less than 20% each other.
In addition, the shape uniformity of membrane micropore and the uniformity of pore size, very big on plasma discharge influence in film,
Therefore heretofore described first water penetration diaphragm and the second water penetration diaphragm preferably equal shape in each permeable micropore when in use
At plasma discharge.In this way when using discharging, the direction of an electric field between anodic-cathodic can penetrate each permeable micropore it is equal from
Plasma discharge is directed in all water passages of water penetration diaphragm and carries out by subgroup, to be excited with minimum voltage
Water-outlet body plasma discharge generates the transient state oxidation factor of a large amount of great sterilizing abilities, can greatly improve in water body in water
The degradation efficiency of pollutant preferably carries out sterilizing etc..
Being further improved for above-mentioned technical proposal be：The outside of the water container is equipped with the shell for surrounding water container lower part
Body forms the sun for surrounding first electrode pair between the shell, water container, the first water penetration diaphragm and the second water penetration diaphragm
The enclosure space of the negative electrode of electrode and second electrode pair, the shell are equipped with opening, and be filled with water appearance described in the opening formation
The water inlet of device；The bottom of the shell is equipped with sewage draining exit.
In this way, filtering of the city for water supply water from exocoel through the first, second water penetration diaphragm enters water container,
Water pollutant is intercepted at exocoel, and water is the purified water through membrane filtration in water container, later by the indoor sewage of exocoel
Emptying, so as to improve treatment effeciency and treatment effect.
Being further improved for above-mentioned technical proposal be：The electrolysis power be high level narrow spaces direct current pulse power source or
Forward voltage level is more than the component pulse-changing power of backward voltage level.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of the embodiment of the present invention two.
Specific implementation mode
Embodiment one
The present embodiment for deep purifying city for the pretreatment unit of tap water, referring to Fig. 1, including yin, yang is pairs of
Electrode, for electrode power supply electrolysis power 2 and water container 1, water container 1 be equipped with water inlet 1-1 and water outlet 1-2, city supply
Tap water injects water container 1 from water inlet 1-1, and water outlet 1-2 can be with the water inlet of existing RO membrane reverse osmosis water filter
Connection, to provide preposition pretreatment for RO membrane reverse osmosis water filters.It is of course also possible to be to connect other physical absorptions or film
Water filting purifier.
Pairs of electrode has two pairs, is first electrode pair and second electrode pair, the yin, yang electrode 3- of first electrode pair respectively
1, it is equipped with the first water penetration diaphragm 5-1 between 3-2, the second water penetration is equipped between yin, yang electrode 4-1,4-2 of second electrode pair
Diaphragm 5-2, first window and the second window are offered on the opposite side wall of water container 1 respectively, and the first water penetration diaphragm 5-1 is full
It covers and is laid on first window, the second water penetration diaphragm 5-2, which completely covers, to be laid on the second window；The positive electrode 3- of first electrode pair
2 and negative electrode 3-1 is respectively arranged on water container 1 outwardly and inwardly, 4-1 points of the positive electrode 4-2 and negative electrode of second electrode pair
Not She Yu water container 1 it is inside and outside.
First, second water penetration diaphragm 5-1,5-2 of the present embodiment is all made of single layer NF membrane made of non-conductive material
Filter membrane.
When in use, the water in water container 1 is oozed out by the first water penetration diaphragm 5-1 and the second water penetration diaphragm 5-2,
And between the first water penetration diaphragm 5-1 and the positive electrode 3-2 of first electrode pair and the second water penetration diaphragm 5-2 and second electricity
Extremely to negative electrode 4-1 between be clamped with water membrane, i.e. the negative electrode 3-1 of first electrode pair and the sun of second electrode pair respectively
Electrode 4-2 is in direct contact with the water in water container 1, the positive electrode 3-2 of first electrode pair only in water container 1 by the
The infiltration water contact of one water penetration diaphragm 5-1 exudation, the negative electrode 4-1 of second electrode pair only with pass through second in water container 1
The infiltration water contact of water penetration diaphragm 5-2 exudations.In this way, not only can guarantee that the cell reaction of the present embodiment device is normally carried out,
Also especially reduce reaction of the source water electrolysis on the positive electrode 3-2 of first electrode pair and the negative electrode 4-1 of second electrode pair.
First, second water penetration diaphragm 5-1,5-2 is clamped between negative electrode and positive electrode, under electrochemical action（Example
Such as the direct oxidation of anode, indirect oxidation, cathodic reduction reaction）, to the bacterium in water, microorganism, organic matter etc., play pole
Inactivation well, degradation, conversion（It is toxic switch to it is nontoxic）Effect, therefore bacterium is thoroughly inactivated, organic matter then tends to be degraded to two
Carbonoxide and water so not only to source advanced water treatment, but also play first, second water penetration diaphragm 5-1,5-2 fabulous
Protection, substantially improves germ contamination and concentration polarization, the useful life of diaphragm is made to greatly prolong.Experiment examination proves, this hair
First, second water penetration diaphragm 5-1,5-2 remains reliable and stable working condition in bright device, even if thoroughly first, second
It is also scum loosely that aqueous diaphragm and electrode surface, which occasionally have fouling,.
As the improvement of the present embodiment, in order to enable plasma preferably discharges in film, the first water penetration diaphragm 5-1 and
Second water penetration diaphragm 5-2 all has the permeable micropore of uniform pore size（That is the aperture of the permeable micropore of the first water penetration diaphragm is big
Small and shape is essentially identical, and the pore size and shape of the permeable micropore of the second water penetration diaphragm are also essentially identical）.Preferably,
The pore diameter range of the permeable micropore of first, second water penetration diaphragm 5-1,5-2 is less than 2 millimeters and is more than 1 nanometer, Er Qie
One, difference is less than 20% to the aperture size of the permeable micropore of second water penetration diaphragm 5-1,5-2 each other between each other.
, can be obtained by being modified to it for the permeable micropore of uniform pore size, first, second thoroughly in the present embodiment
Aqueous diaphragm 5-1,5-2 preferably use the diaphragm made of according to the following steps：
1）Ultraviolet case internal irradiation 10-30 minutes for being 40 DEG C -60 DEG C in temperature by nanometer titanium dioxide titanium solution；
2）Film liquid is formed by the raw material of following mass ratio：
PVDF：20%-30%
Pore-foaming agent：2-5%
Step 1）Nano-titanium dioxide after irradiation：2%-4%
Surfactant：3%-5%
Solvent：70%-80%；
3）The film liquid configured is passed through into supersonic oscillations 20-40 minutes；
4）Liquid film is spread to knifing machine, liquid film is stood to 10-30 seconds in air, is then immersed in solidification liquid and is frozen into
Aqueous diaphragm；
5）The diaphragm impregnates 10-40 minutes in a concentration of 10% alcohol water blend, is then placed in deionized water and floats
It washes；
6）The diaphragm is placed in the pure water tank for being applied with 10kv DC pulse high voltages and is handled 1 hour.
Sterilization and organic matter degradation are carried out to source water through this embodiment, remain chlorine residue and various harmful anions to anode
Migration is pierced by the first water penetration diaphragm 5-1 and is discharged, and metal cations such as calcium ions and magnesium ions, ferrimanganic etc. are persistently precipitated, and pass through the
Two water penetration diaphragm 5-2 discharges, to reduce the hardness of water.The present embodiment can thoroughly inactivate bacterium in the water of source, efficiently drop
Solution source Organic substance in water and the hardness that source water can be reduced.And H a small amount of in water2O2And O3Pass through RO membrane reverse osmosis water filters
It removes, obtains the pure water of deep purifying, can not only mitigate the live load of RO films, and the H in water in this way2O2And O3It can
To carry out sterilizing to RO films.
The present embodiment in electrolytic process, between the both sides yin, yang electrode of the first, second water penetration diaphragm generate hydrogen and
Oxygen escapes up, and generates certain air supporting flocculation, accelerates the suspended matters such as ion are precipitated in water container in water and is gathered into
It rolls into a ball and precipitates, deposit buildup is in the bottom of water container.Can sewage draining exit be set in the bottom of water container, accumulation is periodically discharged and exists
The flocculate of bottom.
The present embodiment carries out redox materials caused by electro-chemical water processing, generally includes following a few classes：（1）Have
Chlorate, hypochlorite of strong oxidizing property etc.；And chlorate, hypochlorite have elecrtonegativity, can easily pass through described
First water penetration diaphragm is discharged, and reduces toxic byproduct；（2）H2O2、O3（Standard electrode EMF 2.07, half-life period 30-60min）
The equal Strong oxdiatives factor, has effects that sterilization, degradation of organic substances；（3）Metal cations such as calcium ions and magnesium ions, ferrimanganic in the water of source etc.
It is lasting to be precipitated, pass through the second water penetration diaphragm to be discharged, to reduce the hardness of source water；（4）The strong oxygen that electrochemical reaction generates
The property changed and service life extremely short intermediate, including e (solvated electron), OH, HO2·、·O2Equal free radicals can based on OH
With degradation of organic substances.OH has high activity, mainly by approach such as electronics transfer, electrophilic addition, dehydrogenation reactions without selection
Ground directly acts on various organic compounds and is degraded to CO2, H2O and other innocuous substances.It has the characteristics that：1)
Oxidability is strong, and standard electrode EMF reaches 2.80 V, is a kind of oxidant that oxidability is extremely strong；2) reaction rate constant
Greatly, OH is very active, and the rate constant reacted with most of organic matters is in 106~1010mol-1Ls-1；3) selectivity
It is low and unrelated with reactant concentration；4) short life, in different surrounding mediums, existence time has certain difference, generally
Less than 10-4s, only 10-9 s in liquid phase；5) treatment effeciency is high, does not generate secondary pollution.
The present embodiment can also make following improve：
1）Electrolysis power 2 is that the direct current pulse power source of high level narrow spaces or forward voltage level are more than backward voltage level
Component pulse-changing power.
2）Water container 1 is pressure-bearing closed container.
3）Preferably, the first water penetration diaphragm and the second water penetration diaphragm are respectively formed in each permeable micropore when in use
Ionic discharge.In this way can it is as much as possible in water generate hydroxyl free base class transient state oxidation factor plasma, more preferably
Carry out sterilizing etc..
It is further to note that the positive electrode of first electrode pair and the first water penetration diaphragm can when the present embodiment is in use
Water membrane can be clamped, may also be contacted between the two by permeating water spot contact or face；The negative electrode of second electrode pair and the
Two water penetration diaphragms are also equally to be arranged.
Embodiment two
The present embodiment is improvement on the basis of embodiment one, with embodiment one the difference is that：As shown in Fig. 2,
The outside of water container 1 is equipped with the shell 20 for surrounding 1 lower part of water container, shell 20, water container 1, first in the present embodiment
The positive electrode 3-2 and second electrode pair for surrounding first electrode pair are formed between water penetration diaphragm 5-1 and the second water penetration diaphragm 5-2
Negative electrode 4-1 enclosure space, shell 1 is equipped with opening 20-1, opening 20-1 and forms the water inlet of water container 1；Shell
The bottom of body is equipped with sewage draining exit 20-2.
When in use, city for water supply water by be open 20-1 through enclosure space and through the first, second water penetration every
The filtering of film 5-1,5-2 enter water container 1, and water pollutant is intercepted in the enclosed space, and water is through film in water container 1
Sewage in enclosure space is emptied by sewage draining exit 20-2 later, then starts electrolytic process by filtered purified water.Its
His content and embodiment one are essentially identical.
As an improvement, first, second water penetration diaphragm 5-1,5-2 uses hydrophilic water penetration diaphragm.
The present invention's is not limited to the above embodiment the tool for the pretreatment unit of tap water for deep purifying city
Body technique scheme, such as the technical solution of above-mentioned each embodiment of the present invention can form new technical side with combined crosswise each other
Case, etc..It is all using equivalent replacement formed technical solution be the present invention claims protection domain.
Claims (8)
1. it is a kind of for deep purifying city for the pretreatment unit of tap water, including the pairs of electrode of negative and positive, supply for the electrode
The electrolysis power and water container of electricity, the water container are equipped with inlet and outlet；It is characterized in that：The pairs of electricity
Pole has two pairs, is first electrode pair and second electrode pair respectively, is equipped between the yin, yang electrode of the first electrode pair non-conductive
First water penetration diaphragm made of material is equipped with made of non-conducting material the between the yin, yang electrode of the second electrode pair
Two water penetration diaphragms；The first water penetration diaphragm separates the positive electrode of first electrode pair with water container, and described second thoroughly
Aqueous diaphragm separates the negative electrode of second electrode pair with water container, is offered respectively on the opposite side wall of the water container
First window and the second window, the first water penetration diaphragm, which completely covers, to be laid on first window, the second water penetration diaphragm
It completely covers and is laid on the second window；The positive electrode and negative electrode of the first electrode pair are respectively arranged on the outside of water container and interior
Portion, the positive electrode and negative electrode of the second electrode pair are respectively arranged on the inside and outside of water container；When in use, described
The negative electrode of one electrode pair and the positive electrode of second electrode pair are in direct contact with the water in water container, the first electrode pair
Positive electrode only in water container by the first water penetration diaphragm ooze out infiltration water contact, the second electrode pair
Negative electrode is only contacted with the infiltration water oozed out by the second water penetration diaphragm in water container.
2. being used for pretreatment unit of the deep purifying city for tap water according to claim 1, it is characterised in that：Described first
The size and shape of the permeable micropore of water penetration diaphragm is essentially identical, the size of the permeable micropore of the second water penetration diaphragm and
Shape is also essentially identical.
3. according to claim 1 be used for pretreatment unit of the deep purifying city for tap water, it is characterised in that：Described
One, the second water penetration diaphragm is hydrophilic water penetration diaphragm.
4. according to claim 1-3 it is any it is described for deep purifying city for the pretreatment unit of tap water, feature exists
In：The pore diameter range of the permeable micropore of the first, second water penetration diaphragm is 2 millimeters~1 nanometer, and the aperture of permeable micropore
Difference is less than 20% each other between each other.
5. according to claim 1-3 it is any it is described for deep purifying city for the pretreatment unit of tap water, feature exists
In：The outside of the water container is equipped with the shell for surrounding water container lower part, the shell, water container, the first water penetration
The closing of the negative electrode of the positive electrode and second electrode pair that surround first electrode pair is formed between diaphragm and the second water penetration diaphragm
Space, the shell are equipped with opening, and described be open forms the water inlet of the water container；The bottom of the shell is equipped with row
Dirty mouth.
6. according to claim 1-3 it is any it is described for deep purifying city for the pretreatment unit of tap water, feature exists
In：The electrolysis power be high level narrow spaces direct current pulse power source or forward voltage level be more than backward voltage level friendship
Become the pulse power.
7. according to claim 1-3 it is any it is described for deep purifying city for the pretreatment unit of tap water, feature exists
In：When in use, plasma is respectively formed in the permeable micropore of each of the first water penetration diaphragm and the second water penetration diaphragm to put
Electricity.
8. according to claim 1-3 it is any it is described for deep purifying city for the pretreatment unit of tap water, feature exists
In the water penetration diaphragm is the diaphragm made of according to the following steps：
1）Ultraviolet case internal irradiation 10-30 minutes for being 40 DEG C -60 DEG C in temperature by nanometer titanium dioxide titanium solution；
2）Film liquid is formed by the raw material of following mass ratio：
PVDF：20%-30%
Pore-foaming agent：2-5%
Step 1）Nano-titanium dioxide after irradiation：2%-4%
Surfactant：3%-5%
Solvent：70%-80%；
3）The film liquid configured is passed through into supersonic oscillations 20-40 minutes；
4）Liquid film is spread to knifing machine, liquid film is stood to 10-30 seconds in air, is then immersed in solidification liquid and is frozen into diaphragm；
5）The diaphragm impregnates 10-40 minutes in a concentration of 10% alcohol water blend, is then placed in deionized water and rinses；
6）The diaphragm is placed in the pure water tank for being applied with 10kv DC pulse high voltages and is handled 1 hour.
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| CN2015106038416 | 2015-09-20 | ||
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| CN201610221614.1A Active CN105712445B (en) | 2015-09-20 | 2016-04-08 | For deep purifying city for the pretreatment unit of tap water |
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| CN205527896U (en) * | 2015-09-20 | 2016-08-31 | 大连双迪创新科技研究院有限公司 | A preprocessing device for deep purification municipality confession running water |
| CN107720892A (en) * | 2017-09-27 | 2018-02-23 | 大连理工大学 | A kind of capacitive deionization module and its application in sterilizing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936109A (en) * | 2014-04-12 | 2014-07-23 | 大连双迪创新科技研究院有限公司 | Drinking water electrolysis preparation device |
| CN103951118A (en) * | 2014-04-12 | 2014-07-30 | 大连双迪科技股份有限公司 | Business water machine |
| CN205527896U (en) * | 2015-09-20 | 2016-08-31 | 大连双迪创新科技研究院有限公司 | A preprocessing device for deep purification municipality confession running water |
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| JP4665880B2 (en) * | 2006-09-26 | 2011-04-06 | パナソニック電工株式会社 | Electrolyzed water generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936109A (en) * | 2014-04-12 | 2014-07-23 | 大连双迪创新科技研究院有限公司 | Drinking water electrolysis preparation device |
| CN103951118A (en) * | 2014-04-12 | 2014-07-30 | 大连双迪科技股份有限公司 | Business water machine |
| CN205527896U (en) * | 2015-09-20 | 2016-08-31 | 大连双迪创新科技研究院有限公司 | A preprocessing device for deep purification municipality confession running water |
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