CN102099302A - Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter - Google Patents
Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter Download PDFInfo
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- CN102099302A CN102099302A CN2009801278596A CN200980127859A CN102099302A CN 102099302 A CN102099302 A CN 102099302A CN 2009801278596 A CN2009801278596 A CN 2009801278596A CN 200980127859 A CN200980127859 A CN 200980127859A CN 102099302 A CN102099302 A CN 102099302A
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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
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/18—Use of gases
- B01D2321/185—Aeration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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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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- 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
- C02F2303/16—Regeneration of sorbents, filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present group of inventions relates to devices for the purification of liquids and can, in particular, be utilised for the purification of drinking water and waste waters, including sea, river, lake and well water, by removing polar and non-polar organic substances, ions of heavy metals, microorganisms and a significant amount of salts. The group of inventions can be used both for the collection and purification of liquid from open sources and non-pressurised vessels, and also for the collection and purification of liquid, particularly drinking water, from domestic drinking water lines. An apparatus for the purification of liquid comprises means for supplying liquid to be purified, an electro-coagulation unit, a hollow-fibre filter with liquid backwash, a reverse osmosis unit, a collecting vessel, a non-return valve and means for drawing off the purified liquid. The hollow-fibre filter is backwashed first with liquid and then with a pressurised mixture of liquid and air, fed from the collecting vessel. While liquid is being pumped from the collecting vessel, atmospheric air is fed into the collecting vessel using the non-return valve. The proposed water purification apparatus makes it possible to extend the service life of the membranes used in the apparatus, and furthermore the system for the purification of liquid permits assembly in the form of a compact apparatus with a weight of a few kilograms, so that it can be carried by hand.
Description
Technical field
The present invention relates to fluid purifying apparatus for required for protection group, and can be mainly used in by removing polar and nonpolar organic substance, heavy metal ion, microorganism and a large amount of salt and come purifying drinking water and waste water (comprising seawater, river, lake water and well water).Of the present invention group can be used for from the entering and purifying of the liquid of unsealed source and non-pressurised vessel, and also can be used for the entering and purify of liquid (mainly being tap water) from the family expenses water pipe.
Background technology
In the prior art, the fluid purification system based on the combination of membrane filtration (membrane filtration) and reverse osmosis is known.Usually, this system is provided with permission and removes one deck filtering particle from film surface periodic ground so that its perviousness is kept the constant backwash mode.
And electricity consumption (electro-coagulation) remove the dissolved organic substance from water the system of condensing is known in the art.
(calendar year 2001 is open for Russ P No.2171787, C02F 1/18) a kind of housed device that is used for purifying drinking water described, it comprises: be used to supply the device of water to be clean, thick clean unit, electricity condense unit, flocculating chamber, smart clean unit, carry out the unit of clean and the discharge equipment of the water that is used for being purified with ultraviolet radiation, these devices are installed continuously.
The electricity unit that condenses is the system of the plate arranging abreast and made by aluminium or its alloy.Need the flocculating chamber to assemble and deposit aluminium hydroxide.Preferably, need the filter cylinder filtering element of periodically replacing as fine filter.In system, do not use common permission to repeat regenerated film micro-filtration or ultra-filtration element.
Be used for coagulative flocculation and sedimentary special chamber, the critical defect of described invention is inevitable.Can reach a conclusion from description of the invention: the flocculating chamber has large size and weight.The certainty of big and heavy settling chamber has limited significantly and has not been provided with coagulative suitability of being forced to the tame electricity consumption condensed system of isolating unit (for example, micro-filtration unit).
With the immediate technical scheme of proposed scheme be the water correction plant that is considered to prototype, this equipment comprises: be used to supply water to be clean device, thick clean unit, have periodically backwash micro-filtration unit, reverse osmosis units, be used to collect the container of aggregation and the discharge equipment of the water that is used for being purified, these devices are installed (U.S. Patent No. 6 continuously in treating processes, 120,688,2000 open, C 02 F1/44).
The strainer that will have 500 micron pore size sizes is as thick clean unit.The module that to be made by the hollow periosteum of the pore size with 0.2nm is as the micro-filtration unit, and this module is provided with compressor having internally mounted to blow (blow off) film module off with bubble, deposits on the working-surface of fiber to avoid pollutent.Periodically carries out the cleaning of the module that is provided with hollow-fibre membrane with the enriched material (concentrate) of pressurization, the described enriched material of collection in the special container in described equipment.And, being provided with in cleaning during the module of hollow-fibre membrane, enriched material is used to supply reverse osmosis units, because this moment, water after the filtration was not supplied to system in the micro-filtration unit.Enriched material is supplied to non-pressurised collection container, and when container is full of, freely with its discharge.Carry out from container supply enriched material to carry out backwash by pump; The enriched material that drops on the film side is relative with work one side, and removes pollutent.
When controller sends signal,, automatically carry out backwash by opening magnetic valve.Only make water in backwash, without air, this can reduce its effect.
Known equipment is designed to purify the water (comprise seawater, surface water, from the zone with unfavorable ecotope and the water in other sources) of any quality, and is used for coming purifying drinking water by the salt of removing microorganism, virus, macromolecular compound and heavy metal.
A shortcoming of this equipment is the short work-ing life of reverse osmosis membrane.This is that infiltrative sharply reducing owing to fenestra causes, and thisly reduces to be that because the macromolecular compound in the water that is purified former thereby cause, the absorption process that uses can not be by removing these compounds in the initial purge stage in prototype.
In addition, the shortcoming of known device is the complicated and expensive system that is used for air compression and distributes, wherein, the micro-filtration module blow the development that impels its lip-deep aerobic bacteria continuously off.In addition, the big water gaging of this devices consume, and additionally comprise the sufficient and bulky pump of power that is used to clean the micro-filtration module.All these all make the structure of known device become complicated, and improve its price.
Usually, the film device that uses in the most modern water purification system allows concentrated basically detrimental impurity and obtains to be suitable for the water of the deep purifying of follow-up use, for example, and in service water uses.The subject matter that produces in the use of membrane technique (reverse osmosis, micro-filtration and ultra-filtration) is, in the water that is purified to the restriction of solvable macromolecule organic matter content.Because reduce the work-ing life of employed film basically, these impurity limit the use of membrane technique basically.
Summary of the invention
Of the present invention group the main purpose and the technique effect of requirement are that a kind of new liquid purification equipment, the effective ways of cleaning hollow fiber filter and the work-ing life of the film that prolongation is used in equipment are provided.
Another purpose of of the present invention group is, provides with the prototype with several kilograms of weight and compares the possibility that system is assembled into compact device, makes its available hand carry.
By being provided, a kind of liquid purification equipment realizes the technique effect of this purpose and of the present invention group of requirement that produces of use, this liquid purification equipment comprises: the device that is used to supply liquid to be clean, hollow fiber filter with liquid backwash, reverse osmosis units, the discharge equipment of the liquid that has the collection container of last arm and lower branch line and be used for being purified, according to the present invention, has the electricity unit that condenses, its input terminus (input) is connected to the output terminal (output) of the device that is used to supply liquid to be clean, and its output terminal is connected to the input terminus of hollow fiber filter, has the vacuum breaker that is used for atmospheric air is supplied to collection container, this collection container is arranged in its inner vacuum that produces, be used to supply atmospheric air and be used at first using the liquid backwash hollow fiber filter, carry out backwash with the liquid and the AIR MIXTURES of supply therefrom then.The vacuum breaker that is used for atmospheric air is supplied to collection container can be installed in the top of collection container, or be installed on the pipeline of going up a pipe coupling with collection container.The last arm of collection container is arranged to go deep into its inside, and the lower rim of wherein going up arm is no less than 50mm than lower branch line height.Lower branch line is intended to liquid is supplied to reverse osmosis units, and reverse osmosis units is arranged as and produces vacuum in collection container.Last arm is intended to be used for liquid is supplied to collection container, so that liquid flows out, then liquid and AIR MIXTURES is supplied to hollow fiber filter.
By carrying out the technique effect that the method for cleaning hollow fiber filter realizes this purpose and uses of the present invention group requirement, this method comprises backwash, according to the present invention, at first carry out backwash with liquid, use then from the liquid of collection container supply and the pressurised mixt of air and carry out backwash.In the collection container pumping liquid, atmospheric air is supplied in the collection container with vacuum breaker.Carry out backwash and be less than 5 seconds time, preferably, be less than 3 seconds.In the starting stage, under the pressure that produces by the air cushion in the top of collection container, carry out backwash with liquid.
Have in backwash before the module of hollow-fibre membrane, the pressure of the atmospheric air in the collection container is owing to increase by last arm pressure of going into the liquid in the described collection container without interruption.When reaching the defined pressure of compressed atmosphere air, and when the liquid level in the collection container is higher than the end of lower rim of arm, cleaning process begins, supply liquid to clean by the described arm of going up, and when liquid level will reach the end of lower rim of arm, air begins to be used for cleaning by the described arm of going up, take away remaining a part of liquid in the collection container, form liquid and AIR MIXTURES, use this mixture in the terminal stage of cleaning, wherein carry out the efficient purification of at least one module that is provided with hollow-fibre membrane.When the backwash stage finishes, the lower branch line of remaining liquid by collection container is pumped in the reverse osmosis units, because atmospheric air enters the collection container outside by vacuum breaker, and in collection container, produce vacuum.Compare with only cleaning with liquid, the use of liquid and air combination has increased considerably the effect that hollow fiber filter cleans.
Compare with prototype, liquid purification equipment comprises and is used for liquid (additional phase before the film of fluid purification wherein appears in the electricity of) the deep purifying unit that condenses preferably, tap water.This permission is transformed into colloid with organic compound, can separate colloid like a cork by follow-up filtration, protects reverse osmosis membrane thus and prolongs its work-ing life.
The liquid purification equipment that is proposed is characterised in that a kind of high performance method that at first cleans hollow fiber filter with the liquid cleaning then with liquid and AIR MIXTURES, compares with prototype, and this method does not need extra bulky pump and air compressor.
In addition, along with described film ingress of air (only during cleaning) periodically, air can not cause beginning development and form bacterium and microbial film on the surface of hollow-fibre membrane.
Description of drawings
Below, show of the present invention group disclosure with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 shows the general view of liquid purification equipment;
Fig. 2 shows the collection container that is connected to vacuum breaker by pipeline;
Fig. 3 shows the collection container that is connected with vacuum breaker by the joint that is directly installed in the top;
Fig. 4 shows the collection container with the liquid level before the beginning backwash;
Fig. 5 shows has the collection container that is right after the liquid level after backwash;
Fig. 6 shows to the collection container during the reverse osmosis units pumping liquid.
Embodiment
Liquid purification equipment comprises: device 1, the electricity that is used to supply liquid to be clean condense unit 2, hollow fiber filter 3, reverse osmosis units 4, collection container 5, be used to export the discharge equipment 6 of the liquid that is purified, these devices are installed (Fig. 1) continuously.
The output terminal that is used to supply the device 1 of liquid to be clean is connected to the condense input terminus of unit 2 of electricity.The electricity unit 2 that condenses is systems of electrode, and these electrodes can be set to following form: plate that is arranged in parallel or embedded concentric tube are arranged as the constant/pulsed voltage that applies 100V.Anode is made of aluminum.Negative electrode can be made by aluminium and inert material (for example, stainless steel).When two electrodes were each made of aluminum, the voltage of alternating current that will have change in polarity applied and is no less than 10-4 second, so that they are dissolved equably.Can regulate levels of current according to the degree that water pollutes.The condense output terminal of unit 2 of electricity is connected to the input terminus of hollow fiber filter 3, and this hollow fiber filter is made up of the module that at least one is provided with hollow-fibre membrane.Carry out filtration by the module with hollow-fibre membrane 8, this hollow-fibre membrane has, for example, and from 0.01 to 5 μ m, preferably, the hole of from 0.05 to 0.8 μ m.The output terminal of hollow fiber filter 3 is connected to collection container 5, and wherein the volume of collection container 5 surpasses 2 to 10 times of volume of hollow fiber filter 3.Collection container 5 has last arm 14 and lower branch line 15.Last arm 14 partly gos deep in the container 5, and the lower cut that wherein will go up arm 14 is placed in the container 5, than lower branch line 15 height greater than 50mm.Lower branch line 15 is intended to liquid is supplied to reverse osmosis units 4, and for vacuum possibility in collection container 5.Last arm 14 is intended to liquid is supplied to collection container 5, is used to make liquid to flow out, and then liquid and AIR MIXTURES is supplied to hollow fiber filter 3.By vacuum breaker 21 supply atmospheric airs.Described valve 21 can be installed on the pipeline 19, this pipeline is connected to the last arm 14 (Fig. 2) of collection container 5 or in the top of collection container 5 (for example, in the top of collection container 5 in the direct-connected joint).In collection container 5, produce liquid and AIR MIXTURES, clean hollow fiber filter 3 with adverse current.Automatically regulate the process of backwash by valve.Usually, carry out cleaning and be less than 5 seconds, preferably, be less than 3 seconds.Collection container 5 is connected to reverse osmosis units 4.Reverse osmosis units 4 by pump 16, at least one is used for the module 17 of adsorption cleaning and module that at least one is provided with reverse osmosis membrane 18 is formed.By the discharging of Trunk Line 10 execution pollutents, discharge the liquid that is purified by Trunk Line 6, to be used for using (Fig. 1).
If liquid purification equipment is intended to introduce liquid from unsealed source and non-pressurised vessel, so, the device 1 that is used to supply liquid to be clean may be, for example the form of the provisioning component of being made up of coarse filter and pump.As coarse filter, preferably use the one group of grid and/or the deep filter (the flat filtration device of nonwoven fabric layer form or filter cylinder strainer) of the mechanical contamination thing can keep 20 to 1000 μ m.
If liquid purification equipment is intended to from the main forcing pipe line, for example from the family expenses water pipe, introduce liquid, the device 1 that is used to supply liquid to be clean so may be the form that is provided with the joint of valve.
Liquid purification equipment is operated in the following manner:
Will from unsealed source and non-pressurised vessel through the liquid of the device 1 that be used to supply liquid to be clean, be supplied to the condense input terminus of unit 2 of electricity.
In electricity condenses unit 2, liquid flow is crossed electrode system, electrode produces simultaneously at dissolved and causes macromolecular organic compound agglomerative aluminium hydroxide, in the liquid to be clean even existence a spot of macromolecular organic compound all can be shortened the work-ing life of reverse osmosis membrane sharp, and partly shortens the work-ing life of filtering membrane.Immediately following after electricity condenses unit 2, vacuum breaker 7 can be set, it is used for preventing reverse flow on the water direction into when tubular fibre strainer 3 is in high pressure following time.
To be supplied to the input terminus of hollow fiber filter 3 from the condense liquid of unit 2 of electricity.When liquid process hollow fiber filter 3, remove gluey aluminium hydroxide with absorption macromolecule organic matter thereon, only keep low molecular organic material and non-organic ion.After filtering, liquid is supplied to the pump 16 of reverse osmosis units 4 by valve 12.Pump 16 guides to the adsorption cleaning module 17 that at least one removes remaining organic substance therein with liquid, guides to the module of at least one reverse osmosis membrane that is provided with the hole with 0.0001 μ m 18 then.Reverse osmosis membrane has the narrowest hole, and is best selection thus.They use in the terminal stage of fluid purification, because it can stay bacterium, virus and most of soluble salt and organic substance.
Through after being provided with the module of reverse osmosis membrane, produce the liquid and the enriched material of penetrant-purification at liquid.Penetrant is supplied on Trunk Line 6 using, and enriched material (further being called liquid simply) is supplied in the collection container 5 by drain control unit 20 on Trunk Line 19.At this moment, valve 9,11,12 cuts out.
Before the backwash stage begins, rely on the atmospheric air in the liquid compression container that continuously flows into container, make that the pressure in the collection container 5 increases gradually.Preferably, be not less than 1.5 and when being not more than 10 normal atmosphere and liquid level and being higher than the otch of arm 14, valve 9,11 is forced to open and valve 12 is forced to cut out simultaneously reaching.For example, by special controller system, provide valve 9,11,12 during the operation of equipment and 13 the execution that is forced to opening/closing and back-washing method.
When cleaning beginning, under the pressure that produces by air cushion, will be supplied to the input terminus of hollow fiber filter 3 from the top by last arm 14 from the liquid of collection container 5 (Fig. 4), and clean the module that at least one is provided with hollow-fibre membrane 8.When the water surface in the collection container reaches the lower cut of arm 14 (Fig. 5), the air of its internal liquid of extruding in the top of collection container 5, begin to be supplied to output terminal from collection container 5, take away the part of remaining liq in described container 5 by the described arm 14 of going up.At this moment, in collection container 5, produce liquid and AIR MIXTURES.A large amount of bubbles in described liquid and the AIR MIXTURES are by the hole of hollow-fibre membrane, different with prototype, better purification is provided, in prototype, only remove pollutent by the bubble that the air compressor that separates in the micro-filtration unit produces, in depth do not penetrate in its hole from the outside surface (operating surface) of membrane fiber.Every 1m for hollow-fibre membrane
2, the speed of backwash may be 3 to 20ml per 1 second.Total scavenging period of hollow fiber filter 3 be not more than continuous device operation total time 2%.
By Trunk Line 10 releases.When finishing scavenging process, force valve 9,11 to be closed, and valve 13 is opened.Pump 16 begins to pump the liquid at least one adsorption cleaning module 17 by lower branch line 15, and further is provided with the module of reverse osmosis membrane 18 at least one.In pump period, the exhaust in the described container 5 increases, and needs by vacuum breaker 21 supply atmospheric airs (Fig. 6).In addition,, realize the independent close loop maneuver of system, allow reverse osmosis units to move continuously owing to use remaining cleaning liquid in the collection container 5.The advantage of the close loop maneuver of system is to save liquid effectively.For example, for fresh water, the cumulative volume that is used for the liquid of backwash and draining be no more than the liquid that is consumed cumulative volume 20%, preferably, be no more than 5%.
When empty container 5, equipment enters the pattern of introducing the water that is used to purify from external source.
By the quality of initial water with to the purity of the liquid accepted and the demand of quality, determine the specific implementation of equipment.
According to the quality of initial water, can regulate the repetition rate and the penetrant in the reverse osmosis units 4/enriched material ratio of the backwash of hollow fiber filter 3.Can be manually and by using the feedback algorithm of conductivity sensor, luminosity sensor, turbo-power transmitter and other transmitters, carry out adjusting.
Owing to removed solvable macromolecule organic matter from the electricity unit that condenses, and the reason of effective ways of at first using the exploitation of air backwash hollow fiber filter with liquid then, liquid purification equipment makes the work-ing life that has prolonged membrane element.
Additional result is, relies on the electricity small size of unit 2 and high-speed of condensing, and may assemble the system of form of the compact device of weight with several kilograms and height ratio capacity (every 1.4kg weight of equipment is up to 11/min).
Can in various modification, realize this liquid purification equipment, these modification comprise installs extra cell (after hollow fiber unit and after reverse osmosis units), for example, photochemical catalysis unit, absorbing unit, ion-exchange unit and (for example with special resin, antibacterial resin) module of Tian Chonging and filter cylinder, ultraviolet source and oxidation unit.
According to the situation of device variations, may use filtering membrane and micro-filtration film as hollow fiber filter, and available ultrafilter membrane replace reverse osmosis membrane.Therefore, (it must comprise hollow fiber filter) can use the method that is used to purify hollow fiber filter not only in decontaminating liquid equipment required for protection, and in comprising the equipment of various filtering units.
Claims (13)
1. liquid purification equipment comprises: is used to supply the device of liquid to be clean, the hollow fiber filter with liquid backwash, reverse osmosis units, has the collection container of last arm and lower branch line and the discharge equipment of the liquid that is used for being purified,
It is characterized in that described equipment is provided with
The electricity unit that condenses, the described electricity unitary input terminus that condenses is connected to the described output terminal that is used to supply the device of liquid to be clean, and the described electricity unitary output terminal that condenses is connected to the input terminus of described hollow fiber filter,
Vacuum breaker is used for during described collection container pumping liquid atmospheric air being supplied to described collection container, and
Described collection container is arranged to and produces vacuum therein, is used to supply atmospheric air and is used at first using then from the liquid and the AIR MIXTURES of described collection container supply with liquid coming the described hollow fiber filter of backwash.
2. liquid purification equipment according to claim 1 is characterized in that, the described vacuum breaker that is used for atmospheric air is supplied to described collection container is installed in pipeline, and described pipeline is connected to the last arm of described collection container.
3. liquid purification equipment according to claim 1 is characterized in that, is used for the described vacuum breaker that atmospheric air is supplied to described collection container is installed in the top of described collection container.
4. liquid purification equipment according to claim 1 is characterized in that the last arm of described collection container in depth extends to the inside of described collection container, and wherein, described lower end of going up arm is no less than 50mm than described lower branch line height.
5. liquid purification equipment according to claim 1 is characterized in that, described lower branch line is designed to liquid is supplied to described reverse osmosis units, and is arranged in generation vacuum in the described collection container.
6. liquid purification equipment according to claim 1 is characterized in that, the described arm of going up is designed to liquid is supplied to described collection container, so that output liquid and then liquid and AIR MIXTURES are supplied to described hollow fiber filter.
7. a method of cleaning hollow fiber filter comprises that the liquid of using from the collection container supply carries out backwash, it is characterized in that, at first carries out backwash with liquid, and uses then from the liquid of described collection container supply and the pressurised mixt of air and carry out backwash.
8. the method for cleaning hollow fiber filter according to claim 7 is characterized in that, in described collection container pumping liquid, uses vacuum breaker to carry out atmospheric air is supplied to described collection container.
9. the method for cleaning hollow fiber filter according to claim 7 is characterized in that, carries out backwash with the speed less than 5 seconds.
10. the method for cleaning hollow fiber filter according to claim 7 is characterized in that, preferably, carries out backwash with the speed less than 3 seconds.
11. the method for cleaning hollow fiber filter according to claim 7 is characterized in that, in the starting stage, under the pressure that is produced by the air cushion in the top of described collection container, carries out backwash with liquid.
12. the use in liquid purification equipment according to the method for each described cleaning hollow fiber filter in the claim 7 to 11.
13. according to being used in combination of the method for the method of each described cleaning hollow fiber filter in the claim 7 to 11 and decontaminating liquid.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009106887 | 2009-02-26 | ||
| RU2009106887/15A RU2410336C2 (en) | 2009-02-26 | 2009-02-26 | Apparatus for purifying liquid, method of washing hollow-fibre filter and application of method of washing hollow-fibre filter |
| PCT/RU2009/000593 WO2010098691A1 (en) | 2009-02-26 | 2009-10-30 | Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102099302A true CN102099302A (en) | 2011-06-15 |
| CN102099302B CN102099302B (en) | 2014-10-29 |
Family
ID=42665735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980127859.6A Expired - Fee Related CN102099302B (en) | 2009-02-26 | 2009-10-30 | Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102099302B (en) |
| RU (1) | RU2410336C2 (en) |
| WO (1) | WO2010098691A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130362A (en) * | 2011-11-23 | 2013-06-05 | 通用电气公司 | Water treatment device and method |
| CN103223274A (en) * | 2011-12-29 | 2013-07-31 | 帝斯曼知识产权资产管理有限公司 | Method for optimization of backwashing technology |
| CN110078171A (en) * | 2011-06-24 | 2019-08-02 | Emd密理博公司 | For purified water and there is the system and method cleaned automatically |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2446111C1 (en) * | 2010-09-14 | 2012-03-27 | Александр Владимирович Микиртычев | Method of water treatment and membrane unit to this end |
| CN103936181B (en) * | 2014-03-27 | 2015-07-29 | 同济大学 | Manual type purifier |
| RU2589139C2 (en) * | 2014-07-09 | 2016-07-10 | Общество с ограниченной ответственностью "Баромембранная технология" (ООО "БМТ") | Method of cleaning drainage water of solid domestic waste landfills |
| RU2636712C1 (en) * | 2016-12-20 | 2017-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный университет" | Method of chemical cleaning of reverse osmosis filters by solutions of environmentally safe complexes |
| FR3101627B1 (en) * | 2019-10-08 | 2022-01-21 | Natural Water | Liquid purification device |
| RU2759007C1 (en) * | 2020-12-28 | 2021-11-08 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Казанский Национальный Исследовательский Технический Университет Им. А.Н. Туполева-Каи", (Книту-Каи) | Combined filter device |
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| US5584992A (en) * | 1991-01-11 | 1996-12-17 | Sugitomo Akitoshi | Pool water purification system |
| RU2120411C1 (en) * | 1998-01-27 | 1998-10-20 | Общество с ограниченной ответственностью "ЮРТИС" | Method of cleaning oil-containing waste waters |
| US6120688A (en) * | 1997-02-25 | 2000-09-19 | Zenon Environmental, Inc. | Portable reverse osmosis unit for producing drinking water |
| CN1476923A (en) * | 2002-08-20 | 2004-02-25 | 天津膜天膜工程技术有限公司 | Hollow fibre membrane separation equipment and its operation method |
| CN1618506A (en) * | 1999-09-29 | 2005-05-25 | 齐侬环境有限公司 | Ultrafiltration and microfiltration module and system |
| JP2008525167A (en) * | 2004-12-24 | 2008-07-17 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Simple gas cleaning method and apparatus in the technical field |
-
2009
- 2009-02-26 RU RU2009106887/15A patent/RU2410336C2/en not_active IP Right Cessation
- 2009-10-30 CN CN200980127859.6A patent/CN102099302B/en not_active Expired - Fee Related
- 2009-10-30 WO PCT/RU2009/000593 patent/WO2010098691A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584992A (en) * | 1991-01-11 | 1996-12-17 | Sugitomo Akitoshi | Pool water purification system |
| US6120688A (en) * | 1997-02-25 | 2000-09-19 | Zenon Environmental, Inc. | Portable reverse osmosis unit for producing drinking water |
| RU2120411C1 (en) * | 1998-01-27 | 1998-10-20 | Общество с ограниченной ответственностью "ЮРТИС" | Method of cleaning oil-containing waste waters |
| CN1618506A (en) * | 1999-09-29 | 2005-05-25 | 齐侬环境有限公司 | Ultrafiltration and microfiltration module and system |
| CN1476923A (en) * | 2002-08-20 | 2004-02-25 | 天津膜天膜工程技术有限公司 | Hollow fibre membrane separation equipment and its operation method |
| JP2008525167A (en) * | 2004-12-24 | 2008-07-17 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Simple gas cleaning method and apparatus in the technical field |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078171A (en) * | 2011-06-24 | 2019-08-02 | Emd密理博公司 | For purified water and there is the system and method cleaned automatically |
| CN103130362A (en) * | 2011-11-23 | 2013-06-05 | 通用电气公司 | Water treatment device and method |
| US9434630B2 (en) | 2011-11-23 | 2016-09-06 | General Electric Company | Water treatment device and method |
| CN103223274A (en) * | 2011-12-29 | 2013-07-31 | 帝斯曼知识产权资产管理有限公司 | Method for optimization of backwashing technology |
| CN103223274B (en) * | 2011-12-29 | 2016-06-15 | Capiii有限公司 | A kind of method optimizing backwash technique |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2009106887A (en) | 2010-09-10 |
| WO2010098691A1 (en) | 2010-09-02 |
| RU2410336C2 (en) | 2011-01-27 |
| CN102099302B (en) | 2014-10-29 |
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