CN201864607U - Clarification type immersed ultrafiltration membrane filter tank and water treatment system - Google Patents
Clarification type immersed ultrafiltration membrane filter tank and water treatment system Download PDFInfo
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- CN201864607U CN201864607U CN2010205853493U CN201020585349U CN201864607U CN 201864607 U CN201864607 U CN 201864607U CN 2010205853493 U CN2010205853493 U CN 2010205853493U CN 201020585349 U CN201020585349 U CN 201020585349U CN 201864607 U CN201864607 U CN 201864607U
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Abstract
The utility model discloses a clarification type immersed ultrafiltration membrane filter tank and a water treatment system. The filter tank comprises a tank body; a water inlet device communicated with a raw water inlet pipe is arranged on the tank body; a treatment space is formed in the tank body; ultrafiltration equipment is arranged at the upper part of the treatment space; a mud discharge hole is formed at the bottom of the treatment space; and an ultrafiltration and clarification area, a suspended sludge area, a water distribution area and a mud discharge area are formed in the tank body from top to bottom. The water treatment system utilizes the filter tank and is combined with a powder carbon adding device to add powder activated carbon to raw water; and after flocculation, clarification, membrane filtration and activated carbon absorption advanced treatment are achieved in integrated equipment with the help of the ultrafiltration equipment. The filter tank and the water treatment system can adapt to the operation under various complex water quality conditions, and have the advantages that the occupied area for engineering construction is small, the investment cost is low, the mounting is convenient, the repair and the maintenance are simple, and the water quality safety in water treatment is greatly improved.
Description
Technical field
The utility model relates to a kind of ultrafiltration membrance filter technology, belong to the drinking water treatment field of purification, especially relate to a kind of clarification formula submergence ultra-filtration membrane filter tank and water treatment system, according to this technology, former water adds Powdered Activated Carbon, and, in integration apparatus, realize clarification, membrane filtration and charcoal absorption advanced treatment by membrane separation plant through after the flocculation.
Background technology
The insider is described as the ultrafiltration membrane technique of " third generation water purification technology ", because its particular performances is used gradually in the plumbing field at present.Expert scholar has carried out big quantity research to the technology that adopts ultrafiltration membrane technique, has proposed the operational path at various water sources at different pollution levels, as the short processes flow process etc.But the structures of research handle to(for) film how to realize these technology conceptions but rarely has report.In addition, because the pattern of membrane cisterna is more single, makes membrane technique in use be subjected to certain limitation or produce some problems, thereby influenced the further popularization of membrane technique.
In the prior art, filtering type submergence ultra-filtration membrane filter tank is that employing is more a kind of at present, its feature is to be placed on membrane module 90 newly-built or original coal (sand) filter tank is carried out in the improved filter tank, replace coal (sand) filtrate of certain thickness, different-grain diameter, grating in the filter tank to filter with intensive hollow fiber ultrafiltration membrane silk, its concrete structure as shown in Figure 5.The membrane cisterna advantage of this form is that the membrane cisterna degree of depth is more shallow, and the coal that floor space is used more now (sand) filter tank is little, therefore is specially adapted to the transformation to the existing filter tank of old water factory; It can realize the on-line cleaning to membrane module simultaneously, and level of automation is higher, reduces operations staff's labour intensity.
This type filter tank main drawback is:
(1) influent quality being required height, must be through coagulation, precipitation, even the water after filtering, and just can enter membrane cisterna and carry out membrane filtration, especially works as the raw water quality water yield and changes, and makes the settling tank fluctuation of service, when delivery turbidity is high, membrane cisterna is stopped up.
(2) because this type filter tank is to increase membrane treatment process behind conventional treatment process, therefore needs water factory to take certain area in addition and build the film treatment plant; Because the investment of membrane treatment process and operation and maintenance cost are high more a lot of than present coal (sand) filter tank of using, make some water factories based on the restriction of taking up an area of and investing; Be difficult to the membrane cisterna of this pattern is used on a large scale at waterworks construction with in transforming.
(3) for avoiding the enrichment of membrane cisterna internal contamination thing to influence the ultrafiltration membrane system operation, be that the water in the membrane cisterna is all discharged when washing usually, so the rate of recovery low (rate of recovery is the highest to be not more than 96%).
(4) when adopting the on-line cleaning mode, the requirement for anticorrosion height to equipment in pond body and the pond has strengthened construction investment.
With respect to aforesaid filtering type submergence ultra-filtration membrane filter tank, precipitation submergence ultra-filtration membrane filter tank is present more advanced ultra-filtration membrane filter tank, its most typical application, it is the emergent improvement project of the 9th water factory of BEIJING TAP WATER group of going into operation in July, 2010, be used to handle the membrane treatment process of filter tank recoil water, structure that it is concrete and flow process see also shown in Figure 6.Its feature is on the basis of sloping plate deposition pool process, replaces tilting box with membrane module, and settling tank and membrane cisterna are built in the structures, has saved the occupation of land and the investment in coal (sand) filter tank, has reached and has taken up an area of purpose little, less investment.The use in this " precipitation submergence ultra-filtration membrane filter tank ", the while has also overcome the shortcoming in " filtering type submergence ultra-filtration membrane filter tank ", makes it can be used to handle the complicated condition of water quality such as former water that contain silt.
This type filter tank main drawback is:
(1) owing to be provided with three groups of (or many groups) membrane cisternas in every settling tank, the membrane cisterna bottom is open, interconnects.Need maintenance when any membrane cisterna underwater portion wherein goes wrong, or the bottom scrapes mud equipment and safeguard, when overhauling, three groups of (many groups) whole emptyings of membrane cisterna must be stopped production, influence ordinary production.
(2) because mould material itself, can not long-term exposure in air, otherwise membrane lifetime will seriously shorten, even scrap.Therefore the overhaul of the equipments time is brought very big pressure.
(3) matting of membrane module must be carried out by off-line, has reduced level of automation, has strengthened operations staff's labour intensity.
In the prior art, the applying date is on August 29th, 2008, publication number is 101381113 disclosed water supply plant filtration treatment system and treatment processs, its technical scheme has a lot of outstanding advantages, its weak point is that settling pond and film treatment facility are separate stages, and floor space is big, required equipment is many, complex process, investment height.
The utility model content
The technical problem that the utility model solves is: propose a kind of clarification formula submergence ultra-filtration membrane filter tank and treatment system, bringing into play the advantage in existing filtering type submergence ultra-filtration membrane filter tank, precipitation submergence ultra-filtration membrane filter tank, and overcome them and have one or multinomial defective.
Technical solution of the present utility model is: a kind of clarification formula submergence ultra-filtration membrane filter tank, described clarification formula submergence ultra-filtration membrane filter tank comprises the pond body, the pond body is provided with the water feed apparatus that is communicated with former water water inlet pipe, form in the body of described pond and handle the space, described processing spatial top is provided with ultrafiltration apparatus, described processing spatial bottom is provided with mud discharging mouth, from top to bottom is formed with ultrafiltration and settling section, suspension body refuse district, cloth pool and sludge discharging area in the body of described pond.
Aforesaid clarification formula submergence ultra-filtration membrane filter tank, wherein, described ultrafiltration apparatus comprises polysulfone hollow fiber ultrafiltration membrane system, described polysulfone hollow fiber ultrafiltration membrane system is made up of the ultrafiltration membrane filaments of vertically arranging, described ultrafiltration membrane filaments constitutes the outlet pipeline system, and described outlet pipeline system is connected to total rising pipe in filter tank.
Aforesaid clarification formula submergence ultra-filtration membrane filter tank, wherein, the gap between described each ultrafiltration membrane filaments is less than 1 millimeter; The diameter of described ultrafiltration membrane filaments is 1～2 millimeter, and is evenly distributed with the pore that a large amount of diameters are the 0.01-0.1 micron on the film fiber tube wall.
Aforesaid clarification formula submergence ultra-filtration membrane filter tank, wherein, described water feed apparatus is perforation water distributor or the center water inlet pipe that lay bottom, described filter tank, with by perforation water distributor or center water inlet pipe with former water distribution in described filter tank.
Aforesaid clarification formula submergence ultra-filtration membrane filter tank, wherein, described filter tank also is provided with powder charcoal throwing device, adds Powdered Activated Carbon with the former water of Xiang Chizhong, and described suspension body refuse district is simultaneously as the charcoal absorption district.
The utility model also proposes a kind of water treatment system, and this water treatment system comprises mixing pit and flocculation basin, and wherein, described water treatment system also comprises aforesaid clarification formula submergence ultra-filtration membrane filter tank; Described clarification formula submergence ultra-filtration membrane is provided with described mixing pit and described flocculation basin before the filter tank.
Aforesaid water treatment system, wherein, the place ahead of described mixing pit is provided with powder charcoal throwing device, to add Powdered Activated Carbon before Yuan Shui enters mixing pit.
Characteristics of the present utility model and advantage are: the utility model adopts clarification formula submergence ultra-filtration membrane filter tank and water treatment system, Xiang Yuanshui adds Powdered Activated Carbon, and through after the flocculation, in integration apparatus, realize clarification, membrane filtration and charcoal absorption advanced treatment by ultrafiltration apparatus (membrane separation plant), can solve ordinary method to water treatment water quality problem of unstable, can also overcome the deficiencies in the prior art, realized the compages that clarification function, membrane filtration function, charcoal absorption function are finished in structures.
Particularly, water treatment system of the present utility model comprises: powder charcoal throwing device, clarification and ultrafiltration integration apparatus; Described integration apparatus (clarification formula submergence ultra-filtration membrane filter tank) is preceding to be provided with former water is carried out device that the powder charcoal adds and mixing, flocculation basin; Clarification comprises with the ultrafiltration integration apparatus: pool structure, ultrafiltration apparatus, the pool structure middle part is provided with the water-in that enters former water, the bottom of pond body is provided with mud discharging mouth, and ultrafiltration apparatus is installed in the top of body internal space, pond, and described ultrafiltration apparatus outlet pipeline is provided with the backwash pipeline.
In the preferred embodiment of the present utility model, the clarification characteristic in the clarification formula submergence ultra-filtration membrane filter tank is the defecation method that a successive does not have reflux course.Through the former water of flocculation, the perforation water inlet pipe of laying by the bottom, pond enters in the pond, flocculates, and forms body refuse; Be subjected to the comprehensive action of the upflow velocity and the body refuse gravity of current, in the pond, form the thick suspension slime layer of one deck; Impurity particle in the follow-up former water that constantly enters in the pond and body refuse and the flocculation agent in the suspension slime layer are in contact with one another, adsorb, form new body refuse, body refuse concentration in the suspension slime layer is continued to increase, some big body refuses are under action of gravity, overcome the resistance of ascending current, fall in the bucket at the bottom of the pond, being discharged to outside the pond by perforated sludge discharge pipe through concentrating.
In the preferred embodiment of the present utility model, clarification formula submergence ultra-filtration membrane has vertically been laid the film silk in the filter tank, and the gap is less than 1 millimeter, and forms polysulfone hollow fiber ultrafiltration membrane system.The similar one group of group inclination angle of installing in abscission zone, settling pond top of this membrane module is that 90 °, distance between plates are inclined tube (plate) case of a few tenths of a mm.According to " shallow pool theory ", the tiny body refuse in the water touches the film silk, is removed with regard to sticking to film silk surface.When adherent body refuse between the film silk through being in contact with one another, adsorbing and when forming big particle, by action of gravity, some body refuses, directly cause and break away from the suspension slime layer that the film silk enters the bottom and proceed contact, adsorption to lower slip along film silk surface.
Film fiber tube settler has performed to " shallow pool theory " ultimate attainment: tiny body refuse in the water, no matter how little its particle " settling velocity " is, as long as its particle diameter, just can stick to film silk surface easily greater than the diameter of ultra-filtration membrane film silk micropore and be removed.Therefore its deposition efficiency is higher than the virtually any size of present use and the inclined tube of shape (plate) settling tank and settling pond far away, and can more effectively bear because the impact that factors vary such as the water yield of former water, water quality, water temperature are brought, make effluent quality keep stable, security significantly improves.
In the preferred embodiment of the present utility model, the film silk of intensive layout constitutes the rising pipe system in this filter tank in the clarification formula submergence ultra-filtration membrane filter tank.Wherein the tubular fibre of ultrafiltration membrane filaments is constructed, be diameter be on 1～2 millimeter the film fiber tube wall uniform distribution a large amount of diameters be 0.01～0.1 micron pore, these film silks can be looked at as one by one and be arranged vertically, the perforate aperture be 0.01～0.1 micron flood the perforation rising pipe.By siphon (or gravity) effect, these perforation rising pipes will be pooled in total rising pipe through clarifying water, and enter next road technology.Because these perforation rising pipes uniform distribution in the pond make the uniform upflow velocity of the generation pond in, the formation of the slime layer that helps suspending; Simultaneously because the suction function of each pore current, make that body refuse tiny in the water is easier to be touched film silk surface and be removed.
The ultra-filtration membrane purging method in clarification formula submergence ultra-filtration membrane of the present utility model filter tank has solved the cleaning problem according to the millimeter level film silk precipitation process of " shallow pool theory " design.When having gathered a large amount of body refuse in the film silk gap, some body refuses, directly cause and break away from the suspension slime layer that the film silk enters the bottom and proceed contact, adsorption to lower slip along film silk surface; But still have considerable sludge accumulation in film silk gap, and the resistance that current are passed through increases, and also both the transmembrane pressure of film silk increases; When transmembrane pressure reaches prescribed value, must clean.According to inclined tube (plate) precipitation technology of " shallow pool theory " utility model, why distance between plates can not be narrowed down to the millimeter level in the prior art, can't effectively clean with the work that keeps its long-term stability promptly is one of its difficult point.And the utility model adopts the cleaning technique of ultra-filtration membrane, has exactly solved this difficult problem.
Clarification formula submergence ultra-filtration membrane of the present utility model filter tank constitutes a filter tank system.As the filter tank, basic identical with existing conventional pond type, its principle of work is also identical.Their main difference is: conventional filter tank is that filling is certain thickness in the filter tank, coal (sand) granule filter material that different grain size, grating requirement are arranged is as filtration medium, when the settling tank water outlet that contains a large amount of impurity particles (or when adopting the direct filtration technology through the former water of coagulation), enter filtrate, some big impurity particles are trapped within the filtrate hole and reach on the surface, thereby reach the purification of water quality purpose.The Status of development that is limited to existing filtering technique, the particle diameter of granule filter material adopts the 0.5-1.0 millimeter usually at present, so hole big (reaching more than tens microns) between filtrate, so some tiny impurity particles can't be trapped within the filter tank.Ultra-filtration membrane of the present utility model filter tank be with diameter be on 1～2 millimeter, tube wall uniform distribution a large amount of diameters be that the hollow fiber ultrafiltration membrane silk of 0.01～0.1 micron pore replaces filtrate, because its principle of work and conventional filter tank are basic identical, so the insider generally is referred to as the ultra-filtration membrane filter tank.Because the aperture of ultra-filtration membrane has only 0.01～0.1 micron, therefore in removing water in the impurity particle, it almost can all remove algae and microorganism in the water, and the biological safety of water is significantly improved, and therefore is called in the industry " third generation water purification technology ".
In the preferred embodiment of the present utility model, clarification formula submergence ultra-filtration membrane filter tank constitutes Powdered Activated Carbon degree of depth adsorption tank.When former water is subjected to polluting, can be in this pond (or forwardly mix, flocculation basin) add Powdered Activated Carbon.Because Powdered Activated Carbon is suspended state in the pond, can prolong Powdered Activated Carbon and organic duration of contact on the one hand; When containing the Powdered Activated Carbon of high density in the suspension slime layer, can give full play to the absorption property of Powdered Activated Carbon on the other hand, effectively improve Powdered Activated Carbon organic adsorption efficiency in the water.
In sum, the advantage that the utility model is used clarification formula submergence ultra-filtration membrane filter tank system can demonstrate fully in water technology, can adapt to the operation under the condition of water quality of various complexity; Engineering construction is taken up an area of little, and investment cost is few; Easy for installation, maintenance maintenance is simple; Effluent quality can be better than the water quality standard of GB5749-2006, significantly improves the water treatment water quality safety.
Description of drawings
Figure 1A, Figure 1B are the structural representation of two specific embodiments in clarification formula submergence ultra-filtration membrane of the present utility model filter tank.
Fig. 2 is the structural manufacturing process synoptic diagram of clarification formula submergence ultra-filtration membrane water treatment system of the present utility model.
The structural representation of the membrane module that Fig. 3 is adopted for a specific embodiment of the present utility model.
Fig. 4 is the work synoptic diagram of film silk in the specific embodiment of the present utility model.
Fig. 5 is the structural representation in existing filtering type submergence ultra-filtration membrane filter tank.
Fig. 6 is the structural representation in existing precipitation submergence ultra-filtration membrane filter tank.
The drawing reference numeral explanation:
3, water inlet pipe; 4, water feed apparatus;
5, suspension slime layer; 6, perforated sludge discharge pipe; 7, membrane module;
8, hollow fiber ultrafiltration membrane silk; 9, the pore that distributes on the film fiber tube wall; 10, total rising pipe;
11, boring aeration pipe; 12, flushing water pump; 13, braiding channel;
20, integration apparatus (clarification formula submergence ultra-filtration membrane filter tank); 30, mixing pit;
40, flocculation basin; 50, powder charcoal throwing device; 90, membrane module.
Embodiment
The utility model proposes a kind of formula submergence ultra-filtration membrane filter tank, water treatment system and method clarified with this filter tank, wherein, clarification formula submergence ultra-filtration membrane filter tank comprises the pond body, the pond body is provided with water feed apparatus, form in the body of described pond and handle the space, handle spatial top and be provided with ultrafiltration apparatus, handle the spatial bottom and be provided with mud discharging mouth, thereby in the body of pond, from top to bottom form ultrafiltration and settling section, suspension body refuse district, cloth pool and sludge discharging area, make clarification formula submergence ultra-filtration membrane of the present utility model filter tank constitute clarification and ultrafiltration integration apparatus.
Preferably, ultrafiltration apparatus comprises polysulfone hollow fiber ultrafiltration membrane system, polysulfone hollow fiber ultrafiltration membrane system is made up of ultrafiltration membrane filaments and the header vertically arranged, constitute the outlet pipeline system by these ultrafiltration membrane filaments and header, and the outlet pipeline system is connected to total rising pipe, is connected to clean water basin by total rising pipe.
Preferably, outlet pipeline is provided with the backwash pipeline, and the backwash pipeline is provided with flushing water pump; The below of polysulfone hollow fiber ultrafiltration membrane system is provided with boring aeration pipe.
Preferably, the filter tank also can be provided with powder charcoal throwing device, adds Powdered Activated Carbon with the former water in the filter tank.In one embodiment, this powder charcoal throwing device can be is located at the perforated pipe that wears the pond body, and it is provided with the position and is preferably corresponding to suspension body refuse district, and like this, this suspension body refuse district forms the charcoal absorption district simultaneously.
At first in conjunction with the accompanying drawings and by specific embodiment clarification formula submergence ultra-filtration membrane of the present utility model filter tank is described further below.
Clarification formula submergence ultra-filtration membrane filter tank embodiment 1
Shown in Figure 1A, it is the structural representation of the embodiment one in clarification formula submergence ultra-filtration membrane of the present utility model filter tank, from top to bottom be formed with ultrafiltration and settling section, suspension body refuse district, cloth pool and sludge discharging area in the pond body of clarification formula submergence ultra-filtration membrane of the present utility model filter tank integration apparatus, particularly, be to lay water feed apparatus 4 in the bottom of this integration apparatus 2, water flocculates in integration apparatus 2, form the suspension slime layer 5 of running balance in the pond, the perforated sludge discharge pipe 6 of body refuse bottom the body of pond that is deposited to the bottom is discharged to outside the pond.Simultaneously, the body refuse that size is less, weight is lighter enters in the membrane module of laying on top, filter tank 7 with ascending current.
In the present embodiment, former water contains a large amount of floating matters, impurity, or thick substances, easily make line clogging, therefore, water feed apparatus 4 adopts the center water inlet pipe to realize, by this center water inlet pipe with former water distribution in the filter tank, thereby can prevent accident influence production owing to stopping up.
The structure of membrane module 7 as shown in Figure 3, it comprises the hollow fiber ultrafiltration membrane silk 8 of intensive setting vertically and the header 70 of film silk 8 ends, header 70 is communicated to total rising pipe 10 at last.Because be distributed with many pores 9 on the tube wall of film silk 8, clear water floods outflow from pore, siphon is pooled to header 70 again, and enters braiding channel 13 by total rising pipe 10.
In the present embodiment, as Figure 1A, shown in Figure 4, the hollow fiber ultrafiltration membrane silk 8 of intensive layout in integration apparatus 2, film silk 8 installation directions are vertical direction, be the film silk inclination angle [theta]=90 ° are set, with reference to shown in Figure 4, it is the principle of work synoptic diagram of film silk 8, therefore, v is the flow velocity (flow/ultra-filtration membrane area of particulate matter horizontal direction, m/s), V is current upflow velocity (m/s), and u is particulate matter settling velocity (m/s).Tiny body refuse in the water touches film silk 8, is removed with regard to sticking to film silk 8 surfaces.Adherent body refuse is through being in contact with one another flocculation, absorption above film silk 8, when forming big particle, under action of gravity, along film silk 8 surfaces to lower slip, thereby the suspension slime layer 5 that disengaging film silk 8 enters the bottom is proceeded to contact, adsorption.
In the specific implementation, with reference to Figure 1A, Fig. 3, shown in Figure 4, the diameter of hollow fiber ultrafiltration membrane silk 8 may be selected to be 0.6 millimeter～1.8 millimeters, and the diameter of the pore 9 that distributes on film silk 8 tube walls can be 0.01 micron～0.1 micron.
In the present embodiment, the outlet pipeline in this filter tank is provided with the backwash pipeline, and the backwash pipeline is provided with flushing water pump 12; In addition, the below of polysulfone hollow fiber ultrafiltration membrane system 7 is provided with boring aeration pipe 11.Certainly, because water treatment system adopts the operation simultaneously of a plurality of filter tanks usually, therefore, the backwash pipeline can be provided with as required, for example, both this flushing water pump can be arranged on total rising pipe 10, clean with unified membrane module all filter tanks, simultaneously, also can on its corresponding rising pipe, flushing water pump be set separately, to improve the handiness that the filter tank is cleaned at each filter tank.
When the transmembrane pressure of ultra-filtration membrane film silk reaches certain value, need wash, in the present embodiment, the flushing in filter tank is finished jointly by air purge and washing.Shown in Figure 1A, when ultrafiltration apparatus cleaned, the boring aeration pipe 11 that is arranged in membrane module 7 belows discharged uniform bubble, and these bubbles are washed by rubbing with the hands, shaken the body refuse on film silk 8 surfaces, realized air purge.Meanwhile, flushing water pump 12 oppositely is pressed and delivered to the clear water in the braiding channel 13 in the pipe of film silk 8, and is discharged in the integration apparatus 2 by the small pore 9 on the film silk 8, realizes the washing to film silk pore 9 and film silk surface.Under the acting in conjunction of air purge and washing, stick to the molecule that the body refuse on film silk surface and some enter film silk pore 9 and be cleaned from film silk 8, make film silk 8 cleaning that becomes again, can proceed works better.
Clarification formula submergence ultra-filtration membrane filter tank embodiment 2
In the present embodiment, the structure in this clarification formula submergence ultra-filtration membrane filter tank is roughly identical with embodiment 1, its key distinction is, water feed apparatus in the present embodiment adopts the perforation water distributor to realize, by the perforation water distributor with former water distribution in described filter tank, shown in Figure 1B, this mode is applicable to that Dang Yuanshui does not contain a large amount of floating matters, impurity, or thick substances, be difficult for making the situation of line clogging, water distribution is more even like this, can form stable suspension slime layer in the pond, to reach better treatment effect.
After the principal character in clarification formula submergence ultra-filtration membrane filter tank was carried out foregoing description in conjunction with aforementioned specific embodiment, those skilled in the art should know and understood corresponding technical scheme.The others that regard to clarification formula submergence ultra-filtration membrane of the present utility model filter tank are down carried out brief description:
This filter tank can be provided with the Powdered Activated Carbon throwing device on water inlet pipe 3, by the Powdered Activated Carbon throwing device the former water in the water inlet pipe 3 is added Powdered Activated Carbon.Water inlet will be implemented in integration apparatus 2 by embodiment 1 described method, and in addition, the Powdered Activated Carbon that adds contacts with organism in integration apparatus 2 and adsorbs, and can effectively improve Powdered Activated Carbon to organic adsorption efficiency in the water.Certainly, also can above corresponding cloth pool, the processing space in this filter tank, (or position of corresponding suspension slime layer) special perforated pipe be set separately, so that the former water of handling in the space is added Powdered Activated Carbon.
The water outlet of membrane cisterna can be adopted the mode of siphon or water pump suction.Under the situation of condition permission, the mode of siphon water outlet is preferentially selected in suggestion for use, reduces investment, running cost and energy saving purposes to reach.
For sludge discharge way, in order to reduce owing to equipment in the membrane cisterna is carried out conventional maintenance, maintenance, and the film filament length time is exposed in the air, thereby influence the situation of membrane lifetime, under the little situation of membrane cisterna area, preferably adopt the mode of bucket spoil disposal, as for the position and the set-up mode of bucket, those skilled in the art can be according to the concrete parameter in filter tank and operation needs and decision flexibly repeats no more herein.
For the matting mode, online matting mode both can have been adopted in clarification formula submergence ultra-filtration membrane of the present utility model filter tank, also can adopt off-line matting mode.
Based on aforementioned clarification formula submergence ultra-filtration membrane filter tank, the utility model also proposes a kind of water treatment system, and this water treatment system comprises mixing pit, flocculation basin and the integral type clarification formula submergence ultra-filtration membrane filter tank that is provided with in regular turn; Clarification formula submergence ultra-filtration membrane is provided with described mixing pit and described flocculation basin before the filter tank; Described clarification formula submergence ultra-filtration membrane filter tank comprises the pond body, the pond body is provided with water feed apparatus, form in the body of described pond and handle the space, described processing spatial top is provided with ultrafiltration apparatus, described processing spatial bottom is provided with mud discharging mouth, from top to bottom is formed with ultrafiltration and settling section, suspension body refuse district, cloth pool and sludge discharging area in the body of described pond.Wherein, described mixing pit both can separate independent setting with flocculation basin, also can be set to one, and the utility model does not limit.
Need to prove; the related clarification formula submergence ultra-filtration membrane filter tank of water treatment system of the present utility model can be referring to aforementioned content and Figure 1A, Figure 1B and Fig. 3, Fig. 4; repeat no more herein; those skilled in the art can select the characteristics in the aforementioned description to carry out suitable combination according to actual needs, and these all should belong to protection domain of the present utility model.
As shown in Figure 2, it is the structure and the principle schematic of a specific embodiment of water treatment system of the present utility model.This water treatment system is that wherein, mixing pit 30 is provided with the chemicals dosing plant (not shown), adds flocculation agent with the former water in mixing pit 30 at preceding mixing pit 30 and the flocculation basin 40 of being respectively equipped with of integration apparatus 20 (clarification formula submergence ultra-filtration membrane filter tank); Integration apparatus 20 is provided with mud discharging device and aerating apparatus (specifically seeing also the explanation in aforementioned relevant clarification formula submergence ultra-filtration membrane filter tank).
Preferably, when Dang Yuanshui is subjected to polluting, add powder charcoal throwing device 50 in the place ahead of this mixing pit 30, add Powdered Activated Carbon, please refer to shown in Figure 2 with (upstream) enter mixing pit 30 at Yuan Shui before.Add Powdered Activated Carbon by the former water in 50 pairs of water inlet pipes of Powdered Activated Carbon throwing device 3.Water inlet will be implemented in integration apparatus 2 by embodiment one described method, and in addition, the Powdered Activated Carbon that adds contacts with organism in integration apparatus 2 and adsorbs, and can effectively improve Powdered Activated Carbon to organic adsorption efficiency in the water.Because this water treatment system is provided with powder charcoal throwing device 50 in mixing pit 30 the place aheads, therefore, the clarification formula submergence ultra-filtration membrane filter tank of this water treatment system just can no longer be provided with powder charcoal throwing device.
Preferably, to add the amount of Powdered Activated Carbon in former water be 0～100mg/L to powder charcoal throwing device.
In the water treatment system and method for present embodiment, the matting of membrane module both can adopt online matting mode, also can adopt off-line matting mode.The level of automation height of online matting mode, operations staff's labour intensity is low, but owing to will carry out the higher acid of concentration, alkaline purification repeatedly in the pond, therefore the pond body to each membrane cisterna all will carry out rotproofing; Filter tank inlet and outlet pipe lines, spoil disposal pipeline etc. all need the stainless steel of high standard, and investment is high; Because Chi Shenda, the dose of each matting is big, and a certain amount of waste is arranged; In addition, cleaning performance is not good, of long duration after, the film silk can retain some body refuses in the gap, influences the normal operation of film.
Because the limitation of above-mentioned online matting mode, preferably, water treatment system of the present utility model can be provided with acid, alkali cleaning pond separately, carry out matting so that utilize off-line matting mode, because only needing should acid, the alkali cleaning pond is considered anticorrosion, and anticorrosion problem almost can not be considered in the many filter tanks of quantity, can save great amount of investment like this; The reagent consumption amount is also low during cleaning, and cleaning can reach effect more completely; In addition, acid, alkali cleaning pond can be used as standby pool, in case a certain seat filter tank needs maintenance, membrane module temporarily can be put in the pond, put into clear water the film silk is protected, and online matting mode does not possess this condition.But when carrying out the off-line matting, need manually with membrane module by the filter tank lift acid, alkali cleaning is cleaned in the pond; After cleaning finishes, also need membrane module is reinstalled to the filter tank, increased operations staff's labour intensity.
For selecting for use of two kinds of cleaning ways, the user can consider and selects according to oneself practical situation and needs.But because the matting time cycle is longer, number of times is limited, and the dismounting of one group of membrane module, that the general time spent is installed is shorter, and generally only surplus in the of ten minute, labour intensity is not very big; Therefore adopt off-line matting mode can't significantly increase labour intensity.
By said structure, because the utility model adopts clarification formula submergence ultra-filtration membrane filter tank, and from top to bottom be formed with ultrafiltration and settling section, suspension body refuse district in this filter tank, therefore, clarification of the present utility model can be carried out in mode continuous water inlet, no reflux course.Particularly, the perforation water inlet pipe of laying by the bottom, pond through the former water of flocculation enters in the pond and flocculates the formation body refuse; Be subjected to the comprehensive action of the upflow velocity and the body refuse gravity of current, in the pond, form the suspension slime layer; Impurity particle in the follow-up former water that constantly enters in the pond and body refuse and the flocculation agent in the suspension slime layer are in contact with one another, adsorb, form new body refuse, body refuse concentration in the suspension slime layer is continued to increase, and some big body refuses are under action of gravity, overcome the resistance of ascending current, fall in the bucket at the bottom of the pond, being discharged to outside the pond by perforated sludge discharge pipe 6 through concentrating; On the other hand, because film silk uniform distribution in the filter tank of membrane module makes the uniform upflow velocity of the generation pond in, the formation of the slime layer that helps suspending; Simultaneously because the suction function of each pore current, make that body refuse tiny in the water is easier to be touched film silk surface and be removed, when having gathered a large amount of body refuse in the film silk gap, some body refuses, directly cause and break away from the suspension slime layer that the film silk enters the bottom and proceed contact, adsorption to lower slip along film silk surface.Utilize said structure, thereby reached the dynamic regeneration and the balance of suspension slime layer, then need not artificial spoil disposal, gaza, and realize continuously water inlet, no reflux course automatically.
When adding Powdered Activated Carbon in the former water, assembled the Powdered Activated Carbon particle of high density in the suspension slime layer, can improve Powdered Activated Carbon effectively to organic adsorption efficiency in the water.
Claims (7)
1. clarify formula submergence ultra-filtration membrane filter tank for one kind, it is characterized in that, described clarification formula submergence ultra-filtration membrane filter tank comprises the pond body, the pond body is provided with the water feed apparatus that is communicated with former water water inlet pipe, form in the body of described pond and handle the space, described processing spatial top is provided with ultrafiltration apparatus, and described processing spatial bottom is provided with mud discharging mouth, from top to bottom is formed with ultrafiltration and settling section, suspension body refuse district, cloth pool and sludge discharging area in the body of described pond.
2. clarification formula submergence ultra-filtration membrane as claimed in claim 1 filter tank, it is characterized in that, described ultrafiltration apparatus comprises polysulfone hollow fiber ultrafiltration membrane system, described polysulfone hollow fiber ultrafiltration membrane system is made up of the ultrafiltration membrane filaments of vertically arranging, described ultrafiltration membrane filaments constitutes the outlet pipeline system, and described outlet pipeline system is connected to total rising pipe in filter tank.
3. clarification formula submergence ultra-filtration membrane as claimed in claim 2 filter tank is characterized in that the gap between described each ultrafiltration membrane filaments is less than 1 millimeter; The diameter of described ultrafiltration membrane filaments is 1～2 millimeter, and is evenly distributed with the pore that a large amount of diameters are the 0.01-0.1 micron on the film fiber tube wall.
4. clarification formula submergence ultra-filtration membrane as claimed in claim 1 filter tank is characterized in that, described water feed apparatus is perforation water distributor or the center water inlet pipe that lay bottom, described filter tank, with by perforation water distributor or center water inlet pipe with former water distribution in described filter tank.
5. clarification formula submergence ultra-filtration membrane as claimed in claim 1 filter tank is characterized in that described filter tank also is provided with powder charcoal throwing device, adds Powdered Activated Carbon with the former water of Xiang Chizhong, and described suspension body refuse district is simultaneously as the charcoal absorption district.
6. water treatment system, this system comprises mixing pit and flocculation basin, it is characterized in that, described water treatment system also comprises each described clarification formula submergence ultra-filtration membrane filter tank of claim 1～5; Described clarification formula submergence ultra-filtration membrane is provided with described mixing pit and described flocculation basin before the filter tank.
7. water treatment system as claimed in claim 6 is characterized in that, the place ahead of described mixing pit is provided with powder charcoal throwing device, to add Powdered Activated Carbon before Yuan Shui enters mixing pit.
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| CN2010205853493U CN201864607U (en) | 2010-10-29 | 2010-10-29 | Clarification type immersed ultrafiltration membrane filter tank and water treatment system |
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| CN2010205853493U CN201864607U (en) | 2010-10-29 | 2010-10-29 | Clarification type immersed ultrafiltration membrane filter tank and water treatment system |
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| CN201864607U true CN201864607U (en) | 2011-06-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102001728A (en) * | 2010-10-29 | 2011-04-06 | 北京市自来水集团有限责任公司 | Clarifying submerged ultrafiltration membrane filter, water treatment system and method |
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| CN106746013A (en) * | 2017-01-09 | 2017-05-31 | 甘肃金桥水科技（集团）股份有限公司 | A kind of high efficiency clarification tank and ultrafiltration group technology |
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2010
- 2010-10-29 CN CN2010205853493U patent/CN201864607U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001728A (en) * | 2010-10-29 | 2011-04-06 | 北京市自来水集团有限责任公司 | Clarifying submerged ultrafiltration membrane filter, water treatment system and method |
| CN106007030A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing trichloroacetic acid from drinking water, filter core and preparation method |
| CN106007029A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing ethylenediamine tetraacetic acid (EDTA) from drinking water, filter core and preparation method |
| CN106139724A (en) * | 2016-06-28 | 2016-11-23 | 广州市康水科技有限责任公司 | For removing the filter of 4 tert-butyl phenols in drinking water |
| CN106746013A (en) * | 2017-01-09 | 2017-05-31 | 甘肃金桥水科技（集团）股份有限公司 | A kind of high efficiency clarification tank and ultrafiltration group technology |
| CN115974321A (en) * | 2022-12-30 | 2023-04-18 | 陕西延长中煤榆林能源化工有限公司 | Sewage treatment system and method for heavy oil catalytic thermal cracking DCC device |
| CN115974321B (en) * | 2022-12-30 | 2024-04-30 | 陕西延长中煤榆林能源化工股份有限公司 | Sewage treatment system and method of heavy oil catalytic pyrolysis DCC device |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110615 |