CN101391819B - Drinking water filtering system - Google Patents

Drinking water filtering system Download PDF

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Publication number
CN101391819B
CN101391819B CN 200810149320 CN200810149320A CN101391819B CN 101391819 B CN101391819 B CN 101391819B CN 200810149320 CN200810149320 CN 200810149320 CN 200810149320 A CN200810149320 A CN 200810149320A CN 101391819 B CN101391819 B CN 101391819B
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China
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mentioned
tubular fibre
fibre membrane
open
close valve
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CN 200810149320
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CN101391819A (en
Inventor
扪垣龙男
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Asahi Kasei Corp
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Asahi Kasei Chemicals Corp
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Abstract

The invention relates to a drink water filtering system which comprises an ozone generator, an active carbon groove, and a hollow filament membrane filtering device. The hollow filament filtering device is provided with hollow filament with average aperture diameter of 0.001 mu m to 1 mu m for filtering the raw drink water, and is positioned at the upstream of the ozone generator or at the downstream of the active carbon groove. The hollow filament membrane filtering device comprises a pair of hollow filament membrane filtering components, wherein a raw water feeding path is connected to the raw water feeding header respectively through a switch valve, a filtered water discharge path is respectively connected with a common filtered water discharge header, the switch valve is disposed on the filtered water discharge header, and the raw water return path is respectively connected to the common raw water return header through the switch valve; the hollow filament filtering device is configured to be a switch operation through a switch valve and can carry out reverse washing between a pair of hollow filament filtering membrane components.

Description

Drinking water filtering system
Technical field
The present invention relates to a kind of drinking water filtering system, this drinking water filtering system can be useful in such area well, and the drinking original water of this area can not directly be drunk in fact owing to contain organism such as fustiness material, but is used to drink after boiling etc. temporarily.
Background technology
As existing drinking water filtering system, utilize sand filtration, gac, softening agent (ion exchange resin) etc., constitute by NF (nanofilter) or RO (reverse osmosis membrane).For example, the method that can use sand filtration, gac, secondary filter film, ultra-filtration membrane to obtain tap water is disclosed in 2006-No. 035004 communique of TOHKEMY (patent documentation 1).
2006-No. 035004 communique of [patent documentation 1] TOHKEMY
Yet in above-mentioned prior art example, existence can not be removed the organic problems such as fustiness material that contain effectively in drinking original water.
Summary of the invention
The present invention is used to solve above-mentioned problem, its purpose is to provide a kind of drinking water filtering system, this drinking water filtering system can be removed the organism such as fustiness material that are contained in the drinking original water effectively, does not need to be used for scavenging pump, anti-wash tank that the suspended substance etc. to being attached to filtering membrane cleans.
The 1st formation of the drinking water filtering system of the present invention that is used to achieve the above object is characterised in that, comprising: the ozone supply device, and it to drinking original water, makes the organism such as fustiness material that are contained in this drinking original water carry out oxygenolysis ozone supply; The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding; And tubular fibre membrane filter appts, it makes than above-mentioned ozone supply device and more is in upstream side or filters than the hollow-fibre membrane that the drinking original water that above-mentioned gac groove more is in the downstream side sees through mean pore size 0.001 μ m～1 μ m, above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: former water supply stream is connected with former water supply collector by open and close valve respectively, filtered water is discharged stream and is connected with filtered water discharge collector respectively, simultaneously discharge collector and be provided with open and close valve, and former water returns stream and returns collector by open and close valve with Yuan Shui respectively and be connected in this filtered water; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
Wherein, the classification molecular weight refers to see through the maximum molecular weight of hollow-fibre membrane, and bore refers to the bore (internal diameter diameter) of hollow-fibre membrane.
In addition, the 2nd of drinking water filtering system of the present invention is formed on the above-mentioned the 1st basis that constitutes, and also has following feature: have the air feeder of air mixed in the water that carries out mutual backwash between above-mentioned a plurality of tubular fibre filtering film components.
The 3rd formation of drinking water filtering system of the present invention is characterised in that to have ozone supply device, gac groove, reach the tubular fibre membrane filter appts; This ozone supply device to drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply; Gac in this this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding; This tubular fibre membrane filter appts makes than above-mentioned ozone supply device and more is in upstream side or filters than the hollow-fibre membrane that the drinking original water that above-mentioned gac groove more is in the downstream side sees through mean pore size 0.001 μ m～1 μ m; Above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: filtered water is discharged collector and is connected filtered water discharge stream by open and close valve respectively, this filtered water is discharged the water sucking mouth that collector is connected to suction pump, discharge collector in the filtered water that is connected with the water port of this suction pump and connect open and close valve, ramose backwash collector is connected the backwash stream by open and close valve respectively between the open and close valve of discharging collector from this filtered water and above-mentioned suction pump, simultaneously, this backwash stream is discharged the upstream side connection of each open and close valve of stream in above-mentioned filtered water; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
In addition, the 4th formation of drinking water filtering system of the present invention is characterised in that, comprising: the ozone supply device, and it to drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply; The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding; And the tubular fibre membrane filter appts, it makes than above-mentioned ozone supply device and more is in upstream side or filters than the hollow-fibre membrane that the drinking original water that above-mentioned gac groove more is in the downstream side sees through mean pore size 0.001 μ m～1 μ m; Above-mentioned tubular fibre membrane filter appts sees through stoste to be immersed in the hollow-fibre membrane in the treatment trough and stoste is filtered, in addition, above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: filtered liquid is discharged stream and is connected by open and close valve and filtered liquid discharge collector respectively, this filtered liquid is discharged collector and is connected with the liquid sucting port of suction pump, the filtered liquid that open and close valve is connected with leakage fluid dram with this suction pump is discharged collector and is connected, the backwash stream is connected by ramose backwash collector between open and close valve and the open and close valve of discharging collector from this filtered liquid and above-mentioned suction pump respectively, and this backwash stream is discharged the upstream side connection of each open and close valve of stream at above-mentioned filtered liquid; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
In addition, the 5th of drinking water filtering system of the present invention is formed on the above-mentioned the 4th basis that constitutes, also has following feature: in above-mentioned treatment trough, be provided with air feeder, this drinking water filtering system has the aeration rate control device, when it carries out mutual backwash between above-mentioned a plurality of tubular fibre filtering film components, the aeration rate of the air of being supplied with by above-mentioned air feeder is increased.
In addition, the 6th of drinking water filtering system of the present invention is formed on the above-mentioned the 5th basis that constitutes, and also has following feature: above-mentioned aeration rate control device is to being immersed in the whole aeration rate that increases the air of being supplied with by above-mentioned air feeder of a plurality of tubular fibre filtering film components in the above-mentioned treatment trough.
In addition, the 7th of drinking water filtering system of the present invention is formed on the above-mentioned the 5th basis that constitutes, and also has following feature: above-mentioned aeration rate control device only increases the aeration rate of the air of being supplied with by above-mentioned air feeder to being immersed in tubular fibre filtering film component in a plurality of tubular fibre filtering film components in the above-mentioned treatment trough, in the backwash.
In addition, the 8th of drinking water filtering system of the present invention is formed on the above-mentioned the 5th basis that constitutes, and also has following feature: above-mentioned aeration rate control device only increases aeration rate by the air of above-mentioned air feeder supply to the zone between the tubular fibre filtering film component in being formed on tubular fibre filtering film component in a plurality of tubular fibre filtering film components that are impregnated in the above-mentioned treatment trough, in the backwash and filtering.
In addition, the 9th of drinking water filtering system of the present invention is formed on the above-mentioned the 4th basis that constitutes, also has following feature: in above-mentioned treatment trough, whipping appts is set, when between above-mentioned a plurality of tubular fibre filtering film components, carrying out mutual backwash, the liquid in this treatment trough is stirred by above-mentioned whipping appts.
In addition, the 10th formation of drinking water filtering system of the present invention is characterised in that, comprising: the ozone supply device, and it to drinking original water, makes the organism such as fustiness material that are contained in this drinking original water carry out oxygenolysis ozone supply; The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding; The tubular fibre membrane filter appts, it makes than above-mentioned ozone supply device and more is in upstream side or filters than the hollow-fibre membrane that the drinking original water that above-mentioned gac groove more is in the downstream side sees through mean pore size 0.001 μ m～1 μ m; Above-mentioned tubular fibre membrane filter appts sees through stoste to be housed in the hollow-fibre membrane in the external shell and filters, in addition, above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: stoste is supplied with stream and is connected by open and close valve and stoste supply collector respectively, and filtered liquid is discharged stream and is connected with filtered liquid discharge collector respectively, discharge collector at this filtered liquid simultaneously and be provided with open and close valve, and stoste returns stream and returns collector by open and close valve and stoste respectively and be connected, and the above-mentioned stoste of a side is returned stream and supplied with stream with the above-mentioned stoste of the opposing party and be connected by open and close valve respectively; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can make between a plurality of tubular fibre filtering film components to be connected in series, and the flushing of this hollow-fibre membrane is cleaned in the outside that can make stoste flow to above-mentioned hollow-fibre membrane.
In addition, the 11st of drinking water filtering system of the present invention is formed on the above-mentioned the 10th basis that constitutes, and also has following feature: have the air feeder of air mixed in the washing fluid that washes mutually between above-mentioned a plurality of tubular fibre filtering film components.
The 12nd formation of drinking water filtering system of the present invention is characterised in that, comprising: the gac groove, and the gac in this gac groove adsorbs the organism such as fustiness material that contained in the drinking original water; It is that the hollow-fibre membrane of 0.001 μ m～1 μ m filters that tubular fibre membrane filter appts, this tubular fibre membrane filter appts make the drinking original water that more is in the downstream side than above-mentioned gac groove see through mean pore size; The 1st relay flow path, its downstream side separately with above-mentioned each gac groove, above-mentioned each tubular fibre membrane filter appts upstream side separately together couple together; And the 2nd relay flow path, it is with above-mentioned each tubular fibre membrane filter appts downstream side separately, above-mentioned the 1st relay flow path together couples together, this drinking water filtering system is connected above-mentioned gac groove with many prescriptions formula side by side with above-mentioned tubular fibre membrane filter appts, this drinking water filtering system utilizes the 1st open and close valve, the 2nd open and close valve, the opening and closing operations of the 3rd open and close valve, can between the tubular fibre filtering film component of these a plurality of gac grooves and above-mentioned a plurality of tubular fibre membrane filter apptss, carry out mutual backwash, the 1st open and close valve is separately positioned on the upstream side of above-mentioned each gac groove, the 2nd open and close valve is separately positioned on the both sides at the position that the 1st relay flow path on above-mentioned the 1st relay flow path is connected with above-mentioned the 2nd relay flow path, and the 3rd open and close valve is arranged on the downstream side at the position that the downstream side of above-mentioned each tubular fibre membrane filter appts is connected with above-mentioned the 2nd relay flow path.
The 13rd formation of drinking water filtering system of the present invention is characterised in that, comprising: the gac groove, and the gac in this gac groove adsorbs the organism such as fustiness material that contained in the drinking original water; It is that the hollow-fibre membrane of 0.001 μ m～1 μ m filters that tubular fibre membrane filter appts, this tubular fibre membrane filter appts make the drinking original water that more is in the downstream side than above-mentioned gac groove see through mean pore size; The 1st relay flow path, its downstream side separately with above-mentioned each gac groove, above-mentioned each tubular fibre membrane filter appts upstream side separately together couple together; And the 2nd relay flow path, it is with above-mentioned each tubular fibre membrane filter appts downstream side separately, above-mentioned the 1st relay flow path together couples together, this drinking water filtering system is connected above-mentioned gac groove with many prescriptions formula side by side with above-mentioned tubular fibre membrane filter appts, this drinking water filtering system utilizes the 1st T-valve, the 2nd T-valve, the opening and closing operations of open and close valve and conversion operations, can between the tubular fibre filtering film component of these a plurality of gac grooves and above-mentioned a plurality of tubular fibre membrane filter apptss, carry out mutual backwash, the 1st T-valve is arranged on the upstream side of above-mentioned each gac groove, the 2nd T-valve is arranged on the position that the 1st relay flow path on above-mentioned the 1st relay flow path is connected with above-mentioned the 2nd relay flow path, and this open and close valve is arranged on the downstream side at the position that the downstream side of above-mentioned each tubular fibre membrane filter appts is connected with above-mentioned the 2nd relay flow path.
Constitute according to the 1st, the 3rd, the 4th of drinking water filtering system of the present invention, by the ozone supply device with ozone supply to drinking original water, the oxidation operations such as fustiness material that are contained in this drinking original water are decomposed, can be by the organism such as fustiness material of this already oxidised decomposition of charcoal absorption.In addition, can make than ozone supply device and more be in upstream side or filter than the hollow-fibre membrane that the drinking original water that above-mentioned gac more is in the downstream side sees through the mean pore size 0.001 μ m～1 μ m be located at the tubular fibre membrane filter appts.
In addition, by forming the opening and closing operations that can utilize open and close valve is carried out mutual backwash between a plurality of tubular fibre filtering film components formation, do not need to be used for scavenging pump, anti-wash tank that the suspended substance that is attached to hollow-fibre membrane etc. is cleaned, can realize that the miniaturization of filter plant and cost reduce.
In addition, constitute according to the 2nd of drinking water filtering system of the present invention, by in the process of between a plurality of tubular fibre filtering film components, carrying out mutual backwash by the air feeder air supply, thereby hollow-fibre membrane is shaken, improve cleaning performance.
Constitute according to the 5th of drinking water filtering system of the present invention, when carrying out mutual backwash between a plurality of tubular fibre filtering film components in impregnated in treatment trough, increase aeration rate by the aeration rate control device, can form upwelling in the treatment solution in treatment trough, like this, the suspended substance that hollow-fibre membrane from backwash is peeled off rises to by upwelling near the liquid level of treatment trough, can not be attached on the hollow-fibre membrane in the filtration.
In addition, constitute according to the 6th of drinking water filtering system of the present invention, can by the aeration rate control device to the hollow-fibre membrane in the backwash and the hollow-fibre membrane in filtering increase aeration rate on the whole, can improve the cleaning performance of the tubular fibre filtering film component in the backwash and prevent that suspended substance is attached to the effect on the tubular fibre filtering film component in the filtration again.
In addition, constitute according to the 7th of drinking water filtering system of the present invention, only the hollow-fibre membrane in the backwash is increased aeration rate by the aeration rate control device, can form upwelling to the tubular fibre filtering film component in the backwash, like this, can keep out of the way near the liquid level of treatment trough by the suspended substance that this upwelling is peeled off the tubular fibre filtering film component from backwash, and then become along the katabatic drainage of tubular fibre filtering film component in the adjacent filtration etc., therefore in treatment trough, form rotary current, can improve the cleaning performance of the tubular fibre filtering film component in the backwash effectively and prevent that suspended substance is attached to the effect on the tubular fibre filtering film component in the filtration again.
In addition, constitute, to being formed on the hollow-fibre membrane zone increase aeration rate intermembranous in the backwash, form stable rotary current, improve cleaning performance effectively with the tubular fibre in filtering by the aeration rate control device according to the 8th of drinking water filtering system of the present invention.
In addition, constitute according to the 9th of drinking water filtering system of the present invention, when carrying out mutual backwash between a plurality of tubular fibre filtering film components in being impregnated into treatment trough, by whipping appts the liquid in this treatment trough is stirred, can stir stream by this hollow-fibre membrane from backwash suspended substance under peeling off is kept out of the way, can not be attached on the hollow-fibre membrane in the filtration.
In addition, constitute according to the 10th of drinking water filtering system of the present invention, utilize the opening and closing operations of open and close valve, make between a plurality of tubular fibre filtering film components and be connected in series, the flushing that the outside that can make stoste flow to above-mentioned hollow-fibre membrane is cleaned this hollow-fibre membrane, thereby can reduce the liquid measure of depleted stoste (concentrated solution) in flushing, the liquid waste disposal amount also can reduce.
In addition, constitute according to the 11st of drinking water filtering system of the present invention, by air feeder with air mixed in the washing fluid that a plurality of tubular fibre filtering film components, washes mutually, thereby hollow-fibre membrane is shaken, improve cleaning performance.
Constitute according to the 12nd, the 13rd of drinking water filtering system of the present invention, utilize the opening and closing operations of the open and close valve that two-port valve forms and the conversion operations of T-valve, can between the tubular fibre filtering film component of a plurality of gacs and a plurality of tubular fibre membrane filter apptss, carry out mutual backwash, do not need to be used for the scavenging pump and the anti-wash tank that clean attached to outstanding absurd creature matter on gac and the hollow-fibre membrane etc., can realize the miniaturization of filter plant and reduce cost.
Description of drawings
Fig. 1 is the schema of the formation of expression drinking water filtering system of the present invention.
The state that Fig. 2 has represented to utilize the opening and closing operations of the open and close valve of tubular fibre membrane filter appts to carry out mutual backwash between a plurality of tubular fibre filtering film components (a) is the situation of external-compression type, (b) is the situation of inner pressed, (c) is the situation of impregnated membranes.
Fig. 3 is provided with the figure of the formation of air fed air feeder in the process of carrying out mutual backwash with external-compression type between a plurality of tubular fibre filtering film components for expression.
Fig. 4 is the figure of explanation formation of control aeration rate under the situation that adopts impregnated membranes.
Fig. 5 is the figure of explanation formation of control aeration rate under the situation that adopts impregnated membranes.
Fig. 6 is the figure of explanation formation of control aeration rate under the situation that adopts impregnated membranes.
Fig. 7 is the figure of explanation formation of control aeration rate under the situation that adopts impregnated membranes.
The figure of the formation that Fig. 8 stirs in to treatment trough under adopting the situation of impregnated membranes for explanation.
Fig. 9 is illustrated in the external-compression type tubular fibre membrane filter appts, utilizes the opening and closing operations of open and close valve to make between a plurality of tubular fibre filtering film components and is connected in series, and makes stoste flow to the outside of hollow-fibre membrane, cleans the figure of state of the flushing of this hollow-fibre membrane.
Figure 10 is illustrated in the figure that is provided with in the external-compression type tubular fibre membrane filter appts the formation of the air feeder of air mixed in the washing fluid that washes mutually between a plurality of tubular fibre filtering film components.
Figure 11 is illustrated in the opening and closing operations of utilizing open and close valve in the inner pressed tubular fibre membrane filter appts to make between a plurality of tubular fibre filtering film components and be connected in series, make stoste flow to the outside of hollow-fibre membrane, clean the flushing of this hollow-fibre membrane, be provided with figure simultaneously the formation of the air feeder of air mixed in the washing fluid that between a plurality of tubular fibre filtering film components, washes mutually.
Figure 12 represents gac groove and tubular fibre membrane filter appts are connected in shifting pump shown in Figure 1 and the figure between the medial launder with the mutual backwash unit that two prescription formulas are formed by connecting side by side, and wherein this tubular fibre membrane filter appts is connected with the downstream side of this gac groove.
Figure 13 omits the 1st tubular fibre membrane filter appts, ozonizer, mixing tank, discharge ozonize device, reactive tank and shifting pump shown in Figure 1 to represent gac groove and tubular fibre membrane filter appts are connected in shifting pump shown in Figure 1 and the figure between the medial launder with the mutual backwash unit that two prescription formulas are formed by connecting side by side, and tubular fibre membrane filter appts wherein is connected with the downstream side of this gac groove respectively.
Figure 14 represents the figure of the unitary formation of mutual backwash that gac groove and tubular fibre membrane filter appts are formed by connecting side by side with two prescription formulas, and tubular fibre membrane filter appts wherein is connected with the downstream side of this gac groove respectively.
Figure 15 is used to illustrate that the opening and closing operations of each open and close valve that utilization is made up of two-port valve carries out the figure of the state of mutual backwash between the gac that a plurality of gac grooves are contained, a plurality of tubular fibre membrane filter appts tubular fibre filtering film component separately.
Figure 16 represents the figure of the unitary formation of another mutual backwash that gac groove, tubular fibre membrane filter appts are formed by connecting side by side with two prescription formulas, and tubular fibre membrane filter appts wherein is connected with the downstream side of this gac groove respectively.
Figure 17 is used to illustrate the opening and closing operations of each open and close valve that utilization is made up of two-port valve and the conversion operations of T-valve, carries out the figure of the state of mutual backwash between the gac that a plurality of gac grooves are contained, a plurality of tubular fibre membrane filter appts tubular fibre filtering film component separately.
Embodiment
Below, specifically describe an embodiment of drinking water filtering system of the present invention with reference to the accompanying drawings.Fig. 1 is the schema of the formation of expression drinking water filtering system of the present invention; The state that Fig. 2 has represented to utilize the opening and closing operations of the open and close valve of tubular fibre membrane filter appts to carry out mutual backwash between a plurality of tubular fibre filtering film components, Fig. 2 (a) is the situation of external-compression type, Fig. 2 (b) is the situation of inner pressed, and Fig. 2 (c) is the situation of impregnated membranes; Fig. 3 is provided with the figure of the formation of air fed air feeder in the process of carrying out mutual backwash with external-compression type between a plurality of tubular fibre filtering film components for expression.
In Fig. 1, Reference numeral 1 supplies to mixing tank 3 by supply pump 2 by the 1st tubular fibre membrane filter appts 20 for storing from the former tank of supply drinking original waters such as tap water office (life tap water).The 1st tubular fibre membrane filter appts 20 can be the big box type filter of hollow-fibre membrane bore of the 2nd tubular fibre membrane filter appts 7 that relative aperture describes in detail later, also can be the hollow-fibre membrane that similarly sees through mean pore size 0.001 μ m～1 μ m with the 2nd tubular fibre membrane filter appts 7 and carries out filtering formation.In addition, can to adopt the residence time be static mixer about 10 minutes to mixing tank 3.
Reference numeral 4 is the ozonizer as the ozone supply device, and (O3) supplies in the drinking original water that is fed into mixing tank 3 with ozone, and oxidation operations such as fustiness material contained in this drinking original water are decomposed.Reference numeral 5 is a reactive tank, by being detained the scheduled time (for example about 12 minutes) in this reactive tank 5, ozone is contacted equably with drinking original water.Reactive tank 5 is drinking mixed former water and ozone on one side, Yi Bian drinking original water and ozone are passed through in the reaction stream that is for example formed by the division plate of being located at inside alternately, ozone is contacted equably with drinking original water.
In the upper layer part of reactive tank 5, be detained in order to make ozone, make the ozone of discharge be adsorbed onto active carbon layer by the discharge ozonize device 22 that is provided with active carbon layer and handle.And mixing tank 3 also can constitute one-piece type with reactive tank 5.
Reference numeral 6 is for being provided with the gac groove of active carbon layer, contacts with ozone in reactive tank 5 and the drinking original water of the already oxidised decomposition of organism such as fustiness material is delivered in the gac groove 6 by shifting pump 21.Then, make drinking original water pass through the active carbon layer of gac groove 6, thereby the organism such as fustiness material by ozone institute oxygenolysis are adsorbed.
Clorox (NaClO) backwash device 23 is used for the microorganism that the gac at gac groove 6 takes place is carried out sterilization.
Reference numeral 7 is the 2nd tubular fibre membrane filter appts, utilize the 2nd tubular fibre membrane filter appts 7, make and removed the hollow-fibre membrane that organic drinking original waters such as fustiness material see through mean pore size 0.001 μ m～1 μ m by the charcoal absorption of gac groove 6 and filter.
The state that Fig. 2 has represented to utilize the opening and closing operations of each open and close valve of the 2nd tubular fibre membrane filter appts 7 to carry out mutual backwash between a plurality of tubular fibre filtering film components, Fig. 2 (a) is housed in the state of intermembranous mutual backwash operation of the occasion of the external-compression type in the external shell for hollow-fibre membrane, Fig. 2 (b) is housed in the state of intermembranous mutual backwash operation of the occasion of the inner pressed in the external shell for hollow-fibre membrane, Fig. 2 (c) illustrates the state of intermembranous mutual backwash operation that hollow-fibre membrane is immersed in the occasion of the impregnated membranes in the treatment trough.
Shown in Fig. 2 (a), from the outside that is contained in the hollow-fibre membrane in the external shell drinking original water is exerted pressure and make filtered water penetrate into the 2nd tubular fibre membrane filter appts 7 of external-compression type occasion of inboard of this hollow-fibre membrane by following a pair of tubular fibre filtering film component 16a, 16b constitutes: former water supply stream 10a, 10b is respectively by open and close valve 9a, 9b is connected with the shared former water supply collector of being supplied with by not shown supply pump from gac groove 68, and, filtered water is discharged stream 12a, 12b discharges collector 11 with shared filtered water respectively and is connected, simultaneously, on this filtered water discharge collector 11, be provided with open and close valve 18, and former water returns stream 15a, 15b is respectively by open and close valve 14a, 14b returns collector 13 with shared former water and is connected; The 2nd tubular fibre membrane filter appts 7 utilizes each open and close valve 9a, 9b, 14a, 14b, 18 opening and closing operations, can carry out mutual backwash between this a pair of tubular fibre filtering film component 16a, 16b.
Reference numeral 17 is for being used for the medial launder of drinking filtered water after temporarily stored is filtered by tubular fibre filtering film component 16a, 16b, and the filtered water of drinking of discharging collector 11 discharges from the filtered water of the 2nd tubular fibre membrane filter appts 7 is stored in this medial launder 17.The filtered water (drinking public water supply) of drinking capable of direct drinking supplies to drinking public water supply equipment as having implemented predetermined water treatment to be stored in the medial launder 17 interior filtered water of drinking.
Below, the operation of carrying out mutual backwash between a pair of tubular fibre filtering film component 16a, 16b is described according to Fig. 2 (a).At first, when filtering operation, with open and close valve 9a, 9b be located at filtered water and discharge ratio filtered water on the collector 11 and discharge stream 12a, 12b and more be in the open and close valve 18 that filtered water flows through direction downstream side (right side of Fig. 2) and open, simultaneously open and close valve 14a, 14b are closed, under this state, make gac by gac groove 6 adsorb organic drinking original waters such as removing the fustiness material and penetrate into inboard (external-compression type filtration), filter entirely from the hollow-fibre membrane outside of each tubular fibre filtering film component 16a, 16b.
Then at a pair of tubular fibre filtering film component 16a, when carrying out mutual backwash operation between 16b, when making tubular fibre filtering film component 16a carry out the backwash operation, with open and close valve 9b, 14a opens, simultaneously, with open and close valve 9a, 14b, 18 close, under this state, make by the charcoal absorption of gac groove 6 and removed that organic drinking original waters such as fustiness material penetrate into inboard (external-compression type filtrations) from the hollow-fibre membrane outside of tubular fibre filtering film component 16b and the anti-filtered water discharge stream 12a that flows to tubular fibre filtering film component 16a of the filtered water that obtains, penetrate into the outside from the inboard of hollow-fibre membrane, the suspended substance that is attached on the hollow-fibre membrane is peeled off, returned stream 15a from former water and return collector 13 by former water and be rejected to the outside.
Equally, in the occasion of tubular fibre filtering film component 16b being carried out the backwash operation, with open and close valve 9a, 14b opens, simultaneously with open and close valve 9b, 14a, 18 close, under this state, make by the charcoal absorption of gac groove 6 except going organic drinking original water such as fustiness material to penetrate into inboard (external-compression type filtrations) the anti-filtered water discharge stream 12b that flows to tubular fibre filtering film component 16b of the filtered water that obtains from the hollow-fibre membrane outside of tubular fibre filtering film component 16a, penetrate into the outside from the inboard of hollow-fibre membrane, the suspended substance that is attached to hollow-fibre membrane is peeled off, returned stream 15b from former water and return collector 13 by former water and be rejected to the outside.
And, carrying out only to each tubular fibre filtering film component 16a, when the flushing that the outside surface of the hollow-fibre membrane of 16b washes moves, with open and close valve 9a, 9b, 14a, 14b opens, simultaneously open and close valve 18 is closed, under this state, make and removed organic drinking original waters such as fustiness material by the charcoal absorption of gac groove 6 and supply to each former water supply stream 10a from former water supply collector 8, among the 10b, make drinking original water at each tubular fibre filtering film component 16a, the outside of the hollow-fibre membrane of 16b is flow through, make attached to the suspended substance of the outer surface of this hollow-fibre membrane and peel off, return stream 15a from former water, 15b returns collector 13 by former water and is rejected to the outside.
Like that exert pressure to drinking original water and the 2nd tubular fibre membrane filter appts 7 when making filtered water penetrate into the inner pressed in the outside of this hollow-fibre membrane also similarly constitutes with Fig. 2 (a) in the inboard of the hollow-fibre membrane in being contained in external shell shown in Fig. 2 (b), constitutes by each open and close valve 9a, 9b, 14a, 14b, 18 opening and closing operations to carry out mutual backwash between this a pair of tubular fibre filtering film component 16a, 16b.
And, in Fig. 2 (b), when filtering operation, with open and close valve 9a, 9b be located at filtered water and discharge ratio filtered water on the collector 11 and discharge stream 12a, 12b and more be in the open and close valve 18 that filtered water flows through direction downstream side (right side of Fig. 2) and open, simultaneously open and close valve 14a, 14b are closed, under this state, make and to have removed organic drinking original waters such as fustiness material by the charcoal absorption of gac groove 6 and penetrate into the outside (inner pressed filtration), filter entirely from the hollow-fibre membrane inboard of each tubular fibre filtering film component 16a, 16b.
Then in Fig. 2 (b), at a pair of tubular fibre filtering film component 16a, when carrying out mutual backwash operation between 16b, when making tubular fibre filtering film component 16a carry out the backwash operation, with open and close valve 9b, 14a opens, simultaneously, with open and close valve 9a, 14b, 18 close, under this state, make by the charcoal absorption of gac groove 6 and removed that organic drinking original waters such as fustiness material penetrate into the outside (inner pressed filtrations) from the hollow-fibre membrane inboard of tubular fibre filtering film component 16b and the anti-filtered water discharge stream 12a that flows to tubular fibre filtering film component 16a of the filtered water that obtains, penetrate into the inboard from the outside of hollow-fibre membrane, the suspended substance that is attached to hollow-fibre membrane is peeled off, returned stream 15a from former water and return collector 13 by former water and be rejected to the outside.
Equally, in the occasion of tubular fibre filtering film component 16b being carried out the backwash operation, with open and close valve 9a, 14b opens, simultaneously with open and close valve 9b, 14a, 18 close, under this state, make by the charcoal absorption of gac groove 6 and removed that organic drinking original waters such as fustiness material penetrate into the outside (inner pressed filtrations) from the hollow-fibre membrane inboard of tubular fibre filtering film component 16a and the anti-filtered water discharge stream 12b that flows to tubular fibre filtering film component 16b of the filtered water that obtains, penetrate into the inboard from the outside of hollow-fibre membrane, the suspended substance that is attached to this hollow-fibre membrane is peeled off, returned stream 15b from former water and return collector 13 by former water and be rejected to the outside.
Shown in Fig. 2 (c), in the 2nd tubular fibre membrane filter appts 7 of the occasion of impregnated, the hollow-fibre membrane that one end is plugged is impregnated in the treatment trough 24 under exposed state, attracted by suction pump 25 the other end that is opened from this hollow-fibre membrane, sucking-off makes the drinking original waters in the treatment trough 24 see through that this hollow-fibre membrane filters and the filtered water that obtains; This kind the 2nd tubular fibre membrane filter appts 7 is by a pair of tubular fibre filtering film component 16a, 16b constitutes, this a pair of tubular fibre filtering film component 16a, 16b is supplied to drinking original water in the treatment trough 24 from gac groove 6 by not shown supply pump, respectively by open and close valve 26a, 26b discharges stream 12a with filtered water, 12b discharges collector 11 with shared filtered water and is connected, this filtered water is discharged collector 11 and is connected with the water sucking mouth of the liquid sucting port that becomes suction pump 25, the filtered water discharge collector 11 that is connected in the water port of the leakage fluid dram that becomes this suction pump 25 is connected with open and close valve 30, the backwash collector 27 shared at the open and close valve 30 of discharging collector 11 from this filtered water and 25 ramose of suction pump passes through open and close valve 28a respectively, 28b and backwash stream 29a, 29b connects, simultaneously, this backwash stream 29a, 29b discharges stream 12a in filtered water, each open and close valve 26a of 12b, the upstream side of 26b is communicated with; Utilize each open and close valve 26a, 26b, 28a, 28b, 30 opening and closing operations, can between this a pair of tubular fibre filtering film component 16a, 16b, carry out mutual backwash.
Below, use Fig. 2 (c) that the operation of carrying out mutual backwash between a pair of tubular fibre filtering film component 16a, 16b is described.At first, when filtering operation, with open and close valve 26a, 26b and being located at becomes filtered liquid and discharges the filtered water of collector and discharge ratio suction pump 25 on the collector 11 and more be in the open and close valve 30 that filtered water flows through direction downstream side (right side of Fig. 2) and open, simultaneously, with open and close valve 28a, 28b closes, under this state, drive suction pump 25, the organic drinking original waters that become stoste such as fustiness material have been removed in the charcoal absorption by gac groove 6 that attraction is stored in the treatment trough 24, make it from each tubular fibre filtering film component 16a, the outside of the hollow-fibre membrane of 16b penetrates into the inboard and filters.
Then at a pair of tubular fibre filtering film component 16a, when carrying out mutual backwash operation between 16b, when making tubular fibre filtering film component 16a carry out the backwash operation, with open and close valve 26b, 28a opens, simultaneously, with open and close valve 26a, 28b, 30 close, under this state, drive suction pump 25, organic drinking original waters such as fustiness material have been removed in the charcoal absorption by gac groove 6 that attraction is stored in the treatment trough 24, make its outside penetrate into the inboard from the hollow-fibre membrane of tubular fibre filtering film component 16b, the anti-filtered liquid that becomes tubular fibre filtering film component 16a that flows to of this filtered water is discharged among the filtered water discharge stream 12a of stream, penetrate into the outside from the inboard of hollow-fibre membrane, the suspended substance that is attached to hollow-fibre membrane is peeled off, be rejected in the treatment trough 24.
Equally, when tubular fibre filtering film component 16b being carried out the backwash operation, with open and close valve 26a, 28b opens, simultaneously, with open and close valve 26b, 28a, 30 close, under this state, drive suction pump 25, organic drinking original waters such as fustiness material have been removed in the charcoal absorption by gac groove 6 that attraction is stored in the treatment trough 24, make drinking original water penetrate into the inboard, the anti-filtered water that flows to tubular fibre filtering film component 16b of this filtered water is discharged among the stream 12b, penetrate into the outside from the inboard of hollow-fibre membrane from the outside of the hollow-fibre membrane of tubular fibre filtering film component 16b, the suspended substance that is attached to hollow-fibre membrane is peeled off, be rejected in the treatment trough 24.
Fig. 3 is illustrated in the 2nd tubular fibre membrane filter appts 7 of above-mentioned external pressure filtering type shown in Fig. 2 (a), supply with arm 19a, 19b from air supplying manifold 19 ramose air and be communicated with former water supply stream 10a, 10b by open and close valve 31a, 31b respectively, this air supplying manifold 19 carries out an air fed example in the mutual backwash process between a pair of tubular fibre filtering film component 16a, 16b.Mutual backwash operation between tubular fibre filtering film component 16a, 16b is identical with situation above-mentioned shown in Fig. 2 (a), when backwash each tubular fibre filtering film component 16a, 16b, suitably open and this tubular fibre filtering film component 16a, open and close valve 31a, 31b that 16b is corresponding, can implement to have utilized the backwash operation of emitting air filled cavity.
And in above-mentioned each form of implementation, a pair of tubular fibre filtering film component 16a, 16b are meant and generate backwash with the tubular fibre filtering film components of one or more groups of filtered water and right by the filtering film component of one or more groups of backwash.In addition, except the tubular fibre filtering film component that is connected in each shared collector, also comprise one or more tubular fibre filtering film component groups that are connected with each collector respectively.
Adopt above-mentioned formation, can by as the ozonizer 4 of ozone supply device with ozone supply to drinking original water, the organism such as fustiness material that are contained in this drinking original water are carried out oxygenolysis, can by the gac of gac groove 6 with this oxygenolysis the absorption of organism such as fustiness material remove.The hollow-fibre membrane that makes the drinking original water of organism such as fustiness material absorption having been removed by the gac of gac groove 6 see through the mean pore size 0.001 μ m～1 μ m that is located at the 2nd tubular fibre membrane filter appts 7 filters, and the microorganism that passes gac groove 6 can be removed.
In addition, by forming the automatic or manual opening and closing operations can utilize each open and close valve is carried out mutual backwash between a pair of tubular fibre filtering film component 16a, 16b structure, do not need to be used for to realize that to being attached to scavenging pump, the anti-wash tank that suspended substance on the hollow-fibre membrane etc. cleans the miniaturization of filter plant and cost reduce.
In addition, by in the mutual backwash process between a pair of tubular fibre filtering film component 16a, 16b by the air supply pipe air supply that becomes air feeder, can shake hollow-fibre membrane, improve cleaning performance.
And, in above-mentioned form of implementation, although understand the situation of between tubular fibre filtering film component 16a, the 16b of the 2nd tubular fibre membrane filter appts 7, carrying out mutual backwash, but also can between tubular fibre filtering film component 16a, 16b, carry out mutual backwash equally at the 1st tubular fibre membrane filter appts 20.
Below, other formation of drinking water filtering system of the present invention is described according to Fig. 4～Fig. 7.Put on identical Reference numeral with the same part that constitutes of above-mentioned embodiment, omit explanation.In the present embodiment, as shown in Figure 4 to 7, bottom in treatment trough 24 is provided with the air supply pipe 41,42,43 as air feeder that has disposed aeration opening 41a, 42a, 43a, between a plurality of tubular fibre filtering film component 16a, 16b in being immersed in treatment trough 24, said circumstances shown in Fig. 2 (c) similarly is provided with becomes the aeration rate of aeration rate control device control part 44, and this aeration rate control part 44 makes by the air aeration amount of supplying with as the air supply pipe 41,42,43 of air feeder when mutual backwash increases.
As shown in Figure 4, the aeration rate control part 44 of present embodiment can make by 41,42,43 pairs of air supply pipes as air feeder and be immersed in the control that the whole air aeration amount of supplying with of a plurality of tubular fibre filtering film component 16a, 16b in the treatment trough 24 increases.Fig. 5 is an example of the control that increases of air aeration amount that the air supply pipe 41,42 of the bottom of being located at tubular fibre filtering film component 16a, 16b is supplied with.
Adopt above-mentioned formation, by the hollow-fibre membrane in 44 pairs of backwashes of the aeration rate control part that becomes the aeration rate control device and the hollow-fibre membrane in filtering integrally increase aeration rate, can improve the cleaning performance of the tubular fibre filtering film component in the backwash (in Fig. 4, Fig. 5, being tubular fibre filtering film component 16b) and the tubular fibre filtering film component in filtering (being tubular fibre filtering film component 16a in Fig. 4, Fig. 5) prevented suspended substance adhesion effect again.
In addition, as shown in Figure 6, the aeration rate control part 44 of present embodiment can carry out following control: only the tubular fibre filtering film component (being tubular fibre filtering film component 16b in Fig. 6) that is immersed in the backwash among a plurality of tubular fibre filtering film component 16a, the 16b in the treatment trough 24 is increased the air aeration amount of being supplied with by the air supply pipe 42 that becomes air feeder.
According to above-mentioned formation, can only increase aeration rate by aeration rate control part 44 for the hollow-fibre membrane in the backwash as the aeration rate control device, tubular fibre filtering film component in the backwash (being tubular fibre filtering film component 16b in Fig. 6) is formed upwelling 46, thus, the suspended substance that tubular fibre filtering film component from backwash (being tubular fibre filtering film component 16b in Fig. 6) is peeled off is kept out of the way near the liquid level of treatment trough 24 by means of this upwelling 46, and then become katabatic drainage 47 along the tubular fibre filtering film component in the adjacent filtration (in Fig. 6 for tubular fibre filtering film component 16a) etc., in treatment trough 24, form rotary current, so, can improve the cleaning performance of the tubular fibre filtering film component in the backwash (in Fig. 6 for tubular fibre filtering film component 16b) effectively and the tubular fibre filtering film component in filtering (being tubular fibre filtering film component 16a in Fig. 6) prevented suspended substance adhesion effect again.
In addition, as shown in Figure 7, the aeration rate control part 44 of present embodiment can carry out following control: increase the region intermediate 45 between the tubular fibre filtering film component (being tubular fibre filtering film component 16a in Fig. 7) in being formed on tubular fibre filtering film component (being tubular fibre filtering film component 16b in Fig. 7) among a plurality of tubular fibre filtering film component 16a, the 16b that is immersed in the treatment trough 24, in the backwash and filtering by the air aeration amount as air supply pipe 43 supplies of air feeder.
According to above-mentioned formation, increase aeration rates and form stable rotary current for the intermembranous region intermediate 45 of hollow-fibre membrane and the tubular fibre in filtering that is formed in the backwash by the aeration rate control part 44 that becomes the aeration rate control device, can improve cleaning performance effectively.
According to above-mentioned each formation, when carrying out mutual backwash between a plurality of tubular fibre filtering film component 16a, 16b in being immersed in treatment trough 24, can increase aeration rate by aeration rate control part 44 as the aeration rate control device, form upwelling 46 in the treatment solution in treatment trough 24, the suspended substance peeled off of hollow-fibre membrane from backwash is kept out of the way near the liquid level of treatment trough 24 by means of this upwelling 46 thus, can not be attached on the hollow-fibre membrane in the filtration.
Below, the formation again of tubular fibre membrane filter appts of the present invention is described according to Fig. 8.And, adopt identical Reference numeral with the part that above-mentioned embodiment similarly constitutes, omit explanation.In the present embodiment, as shown in Figure 8, bottom in treatment trough 24 is provided as the stirrer 48 of whipping appts, when carrying out backwash mutually between a plurality of tubular fibre filtering film component 16a, 16b, is stirred by the liquid in 48 pairs of treatment troughs of this stirrer 24.
According to above-mentioned formation, when carrying out mutual backwash between a plurality of tubular fibre filtering film component 16a, 16b in being immersed in treatment trough 24, by stirring by the liquid in 48 pairs of these treatment troughs of stirrer 24, thereby keep out of the way by the suspended substance that stirring stream is peeled off the hollow-fibre membrane from backwash, can not be attached on the hollow-fibre membrane in the filtration.
Below, the formation again of drinking water filtering system of the present invention is described according to Fig. 9～Figure 11.And, adopt identical Reference numeral with the part that above-mentioned embodiment similarly constitutes, omit explanation.In the present embodiment, another embodiment as the 1st, the 2nd tubular fibre membrane filter appts 7,20, Fig. 9 is illustrated in the external-compression type tubular fibre membrane filter appts, utilizing the opening and closing operations of open and close valve to make between a plurality of tubular fibre filtering film components is connected in series, make stoste flow to the outside of hollow-fibre membrane, clean the figure of the flushing of this hollow-fibre membrane; Figure 10 is illustrated in the figure that is provided with in the external-compression type tubular fibre membrane filter appts the formation of the air feeder of air mixed in the washing fluid that washes mutually between a plurality of tubular fibre filtering film components, Figure 11 is illustrated in the inner pressed tubular fibre membrane filter appts, utilizing the opening and closing operations of open and close valve to make between a plurality of tubular fibre filtering film components is connected in series, make stoste flow to the outside of hollow-fibre membrane, clean the flushing of this hollow-fibre membrane, be provided with figure simultaneously the formation of the air feeder of air mixed in the washing fluid that between a plurality of tubular fibre filtering film components, washes mutually.
Fig. 9 has represented to utilize the opening and closing operations of each open and close valve of tubular fibre membrane filter appts 7 to make between a pair of tubular fibre filtering film component 16a, 16b to be connected in series, make stoste flow to the next state that this hollow-fibre membrane is washed in the outside of hollow-fibre membrane, each tubular fibre filtering film component 16a, 16b constitute hollow-fibre membrane and are housed in the interior external-compression type of external shell.
From the outside that is contained in the hollow-fibre membrane in the external shell stoste is exerted pressure as shown in Figure 9, filtered liquid is penetrated in the 2nd tubular fibre membrane filter appts 7 of occasion of external-compression type of inboard of this hollow-fibre membrane, the 2nd tubular fibre membrane filter appts 7 is by following a pair of tubular fibre filtering film component 16a, 16b constitutes: stoste is supplied with stream 10a, 10b is respectively by open and close valve 9a, 9b supplies with collector 8 with the shared stoste of being supplied with by not shown supply pump and is connected, and, filtered liquid is discharged stream 12a, 12b discharges collector 11 with shared filtered liquid respectively and is connected, this filtered liquid is discharged collector 11 and is provided with open and close valve 18 simultaneously, and, stoste is returned stream 15a, 15b is respectively by open and close valve 14a, 14b returns collector 13 with shared stoste and is connected, and side's stoste is returned stream 15a, 15b and the opposing party's stoste are supplied with stream 10a, 10b is respectively by open and close valve 6a, 6b is by series connection washpipe 5a, 5b connects (promptly, stoste is returned stream 15a and is connected by series connection washpipe 5a by open and close valve 6a with stoste supply stream 10b, simultaneously, stoste is returned stream 15b and stoste and is supplied with stream 10a and be connected by the washpipe 5b that connects by open and close valve 6b); The 2nd tubular fibre membrane filter appts 7 utilizes each open and close valve 6a, 6b, 9a, 9b, 14a, 14b, 18 opening and closing operations, make between this a pair of tubular fibre filtering film component 16a, 16b and be connected in series, make stoste flow to the outside of the hollow-fibre membrane of each tubular fibre filtering film component 16a, 16b, can carry out the flushing that this hollow-fibre membrane is cleaned.
Below, to being connected in series between a pair of tubular fibre filtering film component 16a, 16b, the outside that makes stoste flow to the hollow-fibre membrane of each tubular fibre filtering film component 16a, 16b comes the operation of flushing that this hollow-fibre membrane is cleaned to describe according to Fig. 9.At first, filtering the occasion of operation, with open and close valve 9a, 9b and the ratio filtered liquid of being located on the filtered liquid discharge collector 11 are discharged stream 12a, 12b more is in the open and close valve 18 that filtered liquid flows through direction downstream side (right side of Fig. 9) and opens, simultaneously, with open and close valve 6a, 6b, 14a, 14b closes, under this state, make stoste from each tubular fibre filtering film component 16a, the outside of the hollow-fibre membrane of 16b penetrates into inboard (external-compression type filtration), filter entirely, or carry out circulating filtration: with open and close valve 14a, a part that makes stoste under the state that 14b opens flows through in the outside of hollow-fibre membrane and is contained in not shown former liquid bath.
Then make a pair of tubular fibre filtering film component 16a, be connected in series between 16b, make stoste flow to each tubular fibre filtering film component 16a, the occasion that the next flushing that this hollow-fibre membrane is cleaned in the outside of the hollow-fibre membrane of 16b moves, when in the ban tubular fibre filtering film component 16a being washed operation, with open and close valve 6a, 9a, 14b opens, simultaneously with open and close valve 6b, 9b, 14a, 18 close, under this state, supply with stream 10a from stoste and supply with stoste, stoste is flow through in the outside of the hollow-fibre membrane of this tubular fibre filtering film component 16a, the suspended substance that is attached to the outer surface of this hollow-fibre membrane peeled off and return stream 15a from stoste be rejected to the outside, supply with stream 10b by series connection washpipe 5a from the stoste of tubular fibre filtering film component 16b again and supply with the washing fluid that returns stream 15a discharge from this stoste, washing fluid is flow through in the outside of the hollow-fibre membrane of tubular fibre filtering film component 16b, the suspended substance that is attached to this hollow-fibre membrane outer surface is peeled off and returned stream 15b from stoste and return collector 13 by stoste and be rejected to the outside.
Equally, formerly tubular fibre filtering film component 16b is washed the occasion of operation, with open and close valve 6b, 9b, 14a opens, simultaneously, with open and close valve 6a, 9a, 14b, 18 close, under this state, supply with stream 10b from stoste and supply with stoste, stoste is flow through in the outside of the hollow-fibre membrane of this tubular fibre filtering film component 16b, the suspended substance that is attached to the outer surface of this hollow-fibre membrane peeled off and return stream 15b from stoste be rejected to the outside, supply with stream 10a by series connection washpipe 5b from the stoste of tubular fibre filtering film component 16a again and supply with the washing fluid that returns stream 15b discharge from this stoste, washing fluid is flow through in the outside of the hollow-fibre membrane of tubular fibre filtering film component 16a, the suspended substance that is attached to this hollow-fibre membrane outer surface is peeled off and returned stream 15a from stoste and return collector 13 by stoste and be rejected to the outside.
What Figure 10 represented is a following example: in above-mentioned external pressure filtering type tubular fibre membrane filter appts 7 shown in Figure 9, be communicated with stoste supply stream 10a, 10b by open and close valve 17a, 17b respectively from air mixed is supplied with arm 19a, 19b to the air supplying manifold 19 ramose air as air feeder the washing fluid of the mutual flushing of carrying out a pair of tubular fibre filtering film component 16a, 16b.About being connected in series between tubular fibre filtering film component 16a, 16b, the hollow-fibre membrane outside that makes stoste flow to each tubular fibre filtering film component 16a, 16b is moved identical with said circumstances shown in Figure 9 to the flushing that this hollow-fibre membrane cleans, to each tubular fibre filtering film component 16a, when 16b washes, suitably open and this tubular fibre filtering film component 16a, open and close valve 17a, 17b that 16b is corresponding, can implement to utilize the flushing operation of emitting air filled cavity.
Figure 11 is an example of the tubular fibre membrane filter appts 7 of interior press filtration formula, from the inboard of the hollow-fibre membrane that is contained in external shell stoste is exerted pressure as shown in Figure 11 and filtered liquid is penetrated into the tubular fibre membrane filter appts 7 of inner pressed occasion in the outside of this hollow-fibre membrane; This tubular fibre membrane filter appts 7 is by following a pair of tubular fibre filtering film component 16a, 16b constitutes: stoste is supplied with stream 10a, 10b is respectively by open and close valve 9a, 9b supplies with collector 8 with the shared stoste of being supplied with by not shown supply pump and is connected, and, filtered liquid is discharged stream 12a, 12b discharges collector 11 with shared filtered liquid respectively and is connected, this filtered liquid is discharged collector 11 and is provided with open and close valve 18 simultaneously, and, stoste is returned stream 15a, 15b is respectively by open and close valve 14a, 14b returns collector 13 with shared stoste and is connected, and side's stoste is returned stream 15a, 15b and the opposing party's stoste are supplied with stream 10a, 10b is respectively by open and close valve 6a, 6b is by series connection washpipe 5a, 5b connects (promptly, stoste is returned stream 15a and is connected by series connection washpipe 5a by open and close valve 6a with stoste supply stream 10b, simultaneously, stoste is returned stream 15b and stoste and is supplied with stream 10a and be connected by the washpipe 5b that connects by open and close valve 6b); Tubular fibre membrane filter appts 7 can utilize each open and close valve 6a, 6b, 9a, 9b, 14a, 14b, 18 opening and closing operations, make between this a pair of tubular fibre filtering film component 16a, 16b and be connected in series, make stoste flow to the outside of the hollow-fibre membrane of each tubular fibre filtering film component 16a, 16b, carry out the flushing that this hollow-fibre membrane is cleaned.
Below, to being connected in series between a pair of tubular fibre filtering film component 16a, 16b, the flushing operation that the inboard that makes stoste flow to the hollow-fibre membrane of each tubular fibre filtering film component 16a, 16b is cleaned this hollow-fibre membrane describes according to Figure 11.At first, filtering the occasion of operation, with open and close valve 9a, 9b and the ratio filtered liquid of being located on the filtered liquid discharge collector 11 are discharged stream 12a, 12b more is in the open and close valve 18 that filtered liquid flows through direction downstream side (right side of Figure 11) and opens, simultaneously with open and close valve 6a, 6b, 14a, 14b closes, under this state, make stoste from each tubular fibre filtering film component 16a, the inboard of the hollow-fibre membrane of 16b penetrates into the outside (inner pressed filtration), filter entirely, or carry out with open and close valve 14a, the part of stoste is flow through in the inboard of hollow-fibre membrane and be contained in circulating filtration in the not shown former liquid bath.
Then make a pair of tubular fibre filtering film component 16a, be connected in series between 16b, make stoste flow to each tubular fibre filtering film component 16a, the occasion that the next flushing that this hollow-fibre membrane is cleaned in the inboard of the hollow-fibre membrane of 16b moves, when in the ban tubular fibre filtering film component 16a being washed operation, with open and close valve 6a, 9a, 14b opens, simultaneously with open and close valve 6b, 9b, 14a, 18 close, under this state, supply with stream 10a from stoste and supply with stoste, stoste is flow through in the inboard of the hollow-fibre membrane of this tubular fibre filtering film component 16a, the suspended substance that is attached to the inner surface of this hollow-fibre membrane peeled off and return stream 15a from stoste be rejected to the outside, supply with stream 10b by series connection washpipe 5a from the stoste of tubular fibre filtering film component 16b again and supply with the washing fluid that returns stream 15a discharge from stoste, this washing fluid is flow through in the inboard of the hollow-fibre membrane of this tubular fibre filtering film component 16b, the suspended substance that is attached to this hollow-fibre membrane inner surface is peeled off, returned stream 15b from stoste and return collector 13 by stoste and be rejected to the outside.
Equally, formerly tubular fibre filtering film component 16b is washed the occasion of operation, with open and close valve 6b, 9b, 14a opens, simultaneously, with open and close valve 6a, 9a, 14b, 18 close, under this state, supply with stream 10b from stoste and supply with stoste, stoste is flow through in the inboard of the hollow-fibre membrane of this tubular fibre filtering film component 16b, the suspended substance that is attached to the inner surface of this hollow-fibre membrane is peeled off, return stream 15b from stoste and be rejected to the outside, supply with stream 10a by series connection washpipe 5b from the stoste of tubular fibre filtering film component 16a again and supply with the washing fluid that returns stream 15b discharge from stoste, this washing fluid is flow through in the inboard of the hollow-fibre membrane of tubular fibre filtering film component 16a, the suspended substance that is attached to this hollow-fibre membrane inner surface is peeled off, returned stream 15a from stoste and return collector 13 by stoste and be rejected to the outside.
In Figure 11, from with air mixed at a pair of tubular fibre filtering film component 16a, the air supplying manifold 19 ramose air as air feeder in the washing fluid that washes mutually between 16b are supplied with arm 19a, 19b is respectively by open and close valve 17a, 17b and stoste are supplied with stream 10a, 10b is communicated with, make tubular fibre filtering film component 16a, be connected in series between 16b, make stoste flow to each tubular fibre filtering film component 16a, when the inboard next flushing that this hollow-fibre membrane is cleaned of the hollow-fibre membrane of 16b moves, suitably open and this tubular fibre filtering film component 16a, the open and close valve 17a of 16b correspondence, 17b can implement to utilize the flushing operation of emitting air filled cavity.
In the above-described embodiment, except a pair of tubular fibre filtering film component 16a, 16b, also comprise the formation of a plurality of tubular fibre filtering film components that are connected in series successively, and will be connected in parallel to the formation that the filtering film component group of a plurality of tubular fibre filtering film components is connected in series.
According to above-mentioned formation, utilizing the opening and closing operations of each open and close valve to make is connected in series between a pair of tubular fibre filtering film component 16a, 16b, make stoste flow to the outside or the inboard of the hollow-fibre membrane of each tubular fibre filtering film component 16a, 16b, can implement flushing that this hollow-fibre membrane is cleaned, thereby can reduce the liquid measure of the discarded stoste (concentrated solution) that is produced by flushing, the liquid waste disposal amount also can reduce.
In addition, by as the air supply pipe of air feeder with air mixed in the washing fluid that a pair of tubular fibre filtering film component 16a, 16b, washes mutually, can shake hollow-fibre membrane, improve cleaning performance.Other constitutes with the respective embodiments described above and similarly constitutes, and can obtain same effect.
Below, adopt Figure 12～Figure 17 that other formations of drinking water filtering system of the present invention are described.In addition, put on same Reference numeral and omit explanation with the same formation of above-mentioned embodiment.In the present embodiment, as Figure 12～shown in Figure 17, the gac groove 6A that will contain gac carries out two group with the gac groove 6B that contains gac with this group of tubular fibre membrane filter appts 7B with this group of tubular fibre membrane filter appts 7A and is connected side by side, this gac adsorbs the organism such as fustiness material that contained in the drinking original water, and it is that the hollow-fibre membrane of 0.001 μ m～1 μ m filters that this tubular fibre membrane filter appts 7A, 7B make the drinking original water that more is in the downstream side than above-mentioned gac groove 6A, 6B see through mean pore size; Comprise: the 1st relay flow path 51, its downstream side separately with each gac groove 6A, 6B, each tubular fibre membrane filter appts 7A, 7B upstream side separately together couple together; The 2nd relay flow path 52, it together couples together each tubular fibre membrane filter appts 7A, 7B downstream side and the 1st relay flow path 51 separately.
In Figure 14 and Figure 15, be an example that uses two-port valve to constitute, utilize open and close valve V as the 1st open and close valve 1, V 2, as the open and close valve V of the 2nd open and close valve 3, V 4, as the open and close valve V of the 3rd open and close valve 9Opening and closing operations, can and be separately positioned between tubular fibre filtering film component 16a, the 16b on a plurality of tubular fibre membrane filter appts 7A, the 7B at these a plurality of gac groove 6A, gac that 6B contained respectively and carry out mutual backwash, the 1st open and close valve V 1, V 2Be separately positioned on the upstream side of each gac groove 6A, 6B, the 2nd open and close valve V 3, V 4Be separately positioned on the both sides at the position that the 1st relay flow path 51 on the 1st relay flow path 51 is connected with the 2nd relay flow path 52, this open and close valve V 9Be arranged on the downstream side at the position that the downstream side of each tubular fibre membrane filter appts 7A, 7B is connected with the 2nd relay flow path 52.
In Figure 16 and Figure 17, the example for using two-port valve and T-valve to constitute utilizes the 1st T-valve V 31, the 2nd T-valve V 32, open and close valve V 9Opening and closing operations and conversion operations, can and be separately positioned between tubular fibre filtering film component 16a, the 16b on a plurality of tubular fibre membrane filter appts 7A, the 7B at these a plurality of gac groove 6A, gac that 6B contained respectively and carry out mutual backwash, the 1st T-valve V 31Be arranged on the upstream side of each gac groove 6A, 6B, the 2nd T-valve V 32Be arranged on the position that the 1st relay flow path 51 on the 1st relay flow path 51 is connected with the 2nd relay flow path 52, this open and close valve V 9Be arranged on the downstream side at the position that the downstream side of each tubular fibre membrane filter appts 7A, 7B is connected with the 2nd relay flow path 52.
Figure 12 is expression Figure 14 or gac groove 6A shown in Figure 16,6B and respectively with this gac groove 6A, the tubular fibre membrane filter appts 7A that the downstream side of 6B connects, the mutual backwash unit 50 that 7B connects side by side with two prescription formulas is connected in an example of the situation between shifting pump shown in Figure 1 21 and the medial launder 17, and Figure 13 omits the 1st tubular fibre membrane filter appts 20 shown in Figure 1, ozonizer 4, mixing tank 3, discharge ozonize device 22, reactive tank 5 and shifting pump 21 and expression Figure 14 or gac groove 6A shown in Figure 16,6B and respectively with this gac groove 6A, the tubular fibre membrane filter appts 7A that the downstream side of 6B connects, the mutual backwash unit 50 that 7B connects side by side with two prescription formulas is connected in an example of the situation between shifting pump shown in Figure 1 21 and the medial launder 17.Figure 13 can construct a kind of drinking water filtering system, be applicable to that the drinking original water to higher quality such as well water carries out filtering occasion, having omitted ozone is the path, and cost is lower, and this well water does not need the organism such as ozone material that contained in the drinking original water are carried out the ozonize of oxygenolysis.
Then, adopt Figure 14 and Figure 15, to utilizing the opening and closing operations of each the open and close valve V1～V9 that is made up of two-port valve, the state that carries out mutual backwash between gac that these a plurality of gac groove 6A, 6B are contained and a plurality of tubular fibre membrane filter appts 7A, 7B tubular fibre filtering film component separately describes.At first, when filtering operation, open open and close valve V 1, V 2, V 9, close V simultaneously 3～V 8, drinking original water filters the resulting filtered water of drinking by each gac groove 6A, 6B and tubular fibre membrane filter appts 7A, 7B respectively and is stored in the medial launder 17.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7A comes the gac that gac groove 6B is contained cleaned (anti-cleaning 1 shown in Figure 15), open open and close valve V 1, V 4, V 6, close V simultaneously 2, V 3, V 5, V 7～V 9Drinking original water by gac groove 6A and tubular fibre membrane filter appts 7A filter resulting drink gac that filtered water contained via 51 pairs of gac grooves of the 1st relay flow path 6B from the 2nd relay flow path 52 and clean after, rinse water is discharged from discharge opeing stream 53.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7B comes the gac that gac groove 6A is contained cleaned (anti-cleaning 2 shown in Figure 15), open open and close valve V 2, V 3, V 5, close V simultaneously 1, V 4, V 6～V 9Drinking original water by gac groove 6B and tubular fibre membrane filter appts 7B filter resulting drink gac that filtered water contained via 51 pairs of gac grooves of the 1st relay flow path 6A from the 2nd relay flow path 52 and clean after, rinse water is discharged from discharge opeing stream 54.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7A comes hollow-fibre membrane to the tubular fibre filtering film component of tubular fibre membrane filter appts 7B to clean (anti-cleaning 3 shown in Figure 15), open open and close valve V 1, V 8, close V simultaneously 2～V 7, V 9Utilize drinking original water to filter resulting drinking after filtered water cleans the hollow-fibre membrane of the tubular fibre filtering film component of tubular fibre membrane filter appts 7B by gac groove 6A and tubular fibre membrane filter appts 7A, rinse water is discharged from discharge opeing stream 55.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7B comes hollow-fibre membrane to the tubular fibre filtering film component of tubular fibre membrane filter appts 7A to clean (anti-cleaning 4 shown in Figure 15), open open and close valve V 2, V 7, close V simultaneously 1, V 3～V 6, V 8, V 9Utilize drinking original water to filter resulting drinking after filtered water cleans the hollow-fibre membrane of the tubular fibre filtering film component of tubular fibre membrane filter appts 7A by gac groove 6B and tubular fibre membrane filter appts 7B, rinse water is discharged from discharge opeing stream 56.
Then, adopt Figure 16 and Figure 17, to utilizing each the open and close valve V that forms by two-port valve 5～V 9Opening and closing operations and T-valve V 31, V 32The conversion operations state that between gac that a plurality of gac groove 6A, 6B are contained and a plurality of tubular fibre membrane filter appts 7A, 7B tubular fibre filtering film component separately, carries out mutual backwash describe.At first, when filtering operation, open T-valve V to the both sides of gac groove 6A, 6B 31, the while is to the two side closure T-valve V of gac groove 6A, 6B 32, also open open and close valve V 9, close open and close valve V simultaneously 5～V 8, drinking original water filters the resulting filtered water of drinking by each gac groove 6A, 6B and tubular fibre membrane filter appts 7A, 7B respectively and is stored in the medial launder 17.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7A comes the gac that gac groove 6B is contained cleaned (anti-cleaning 1 shown in Figure 17), make T-valve V 31Be transformed into gac groove 6A side (open gac groove 6A side, close gac groove 6B side), make T-valve V simultaneously 32Be transformed into gac groove 6B side (open gac groove 6B side, close gac groove 6A side).And, open open and close valve V6, close open and close valve V simultaneously 5, V 7～V 9Drinking original water by gac groove 6A and tubular fibre membrane filter appts 7A filter resulting drink gac that filtered water contained via 51 pairs of gac grooves of the 1st relay flow path 6B from the 2nd relay flow path 52 and clean after, rinse water is discharged from discharge opeing stream 53.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7B comes the gac that gac groove 6A is contained cleaned (anti-cleaning 2 shown in Figure 17), make T-valve V 31Be transformed into gac groove 6B side (open gac groove 6B side, close gac groove 6A side), make T-valve V simultaneously 32Be transformed into gac groove 6A side (open gac groove 6A side, close gac groove 6B side).And, open open and close valve V 5, close open and close valve V simultaneously 6～V 9Drinking original water respectively by gac groove 6B and tubular fibre membrane filter appts 7B filter resulting drink gac that filtered water contained via 51 pairs of gac grooves of the 1st relay flow path 6A from the 2nd relay flow path 52 and clean after, rinse water is discharged from discharge opeing stream 54.
Then, when in use the filtered liquid of hollow fiber membrane filter appts 7A comes hollow-fibre membrane to the tubular fibre filtering film component of tubular fibre membrane filter appts 7B to clean (anti-cleaning 3 shown in Figure 17), make T-valve V 31Be transformed into gac groove 6A side (open gac groove 6A side, close gac groove 6B side), make T-valve V simultaneously 32 Close gac groove 6A, 6B both sides, and, open and close valve V opened 8, close open and close valve V simultaneously 5～V 7, V 9Utilize drinking original water to filter resulting drinking after filtered water cleans the hollow-fibre membrane of the tubular fibre filtering film component of tubular fibre membrane filter appts 7B by gac groove 6A and tubular fibre membrane filter appts 7A, rinse water is discharged from discharge opeing stream 55.
When in use the filtered liquid of hollow fiber membrane filter appts 7B comes hollow-fibre membrane to the tubular fibre filtering film component of tubular fibre membrane filter appts 7A to clean (anti-cleaning 4 shown in Figure 17), make T-valve V 31Be transformed into gac groove 6B side (open gac groove 6B side, close gac groove 6A side), make T-valve V simultaneously 32 Close gac groove 6A, 6B both sides, and, open and close valve V opened 7, close V simultaneously 5, V 6, V 8, V 9Utilize drinking original water to filter resulting drinking after filtered water cleans the hollow-fibre membrane of the tubular fibre filtering film component of tubular fibre membrane filter appts 7A by gac groove 6B and tubular fibre membrane filter appts 7B, rinse water is discharged from discharge opeing stream 56.
In addition, in the respective embodiments described above, an example as mutual backwash unit 50, gac groove 6A, 6B and the tubular fibre membrane filter appts 7A, the 7B that are connected with the downstream side of this gac groove 6A, 6B respectively are illustrated with the situation that two prescription formulas connect side by side, also can with other a plurality of gac grooves 6 and respectively other a plurality of tubular fibre membrane filter apptss 7 of being connected of the downstream side of this gac groove 6 carry out other a plurality of groups connections arranged side by side and constitute mutual backwash unit 50.
According to above-mentioned formation, utilize and form each open and close valve V by two-port valve 1～V 9Opening and closing operations and each T-valve V 31,32Conversion operations, can between the tubular fibre filtering film component of a plurality of gac grooves 6 that contain gac and a plurality of tubular fibre membrane filter apptss 7, carry out mutual backwash, do not need to be used for the scavenging pump and the anti-wash tank that clean attached to the suspended matter on gac and the hollow-fibre membrane etc., can realize that the miniaturization of filter plant and cost reduce.Other formation can similarly constitute with the respective embodiments described above, obtains same effect.
As the example of applying flexibly of the present invention, applicable to a kind of like this drinking water filtering system, this drinking water filtering system can be useful in such area well, and the drinking original water of this area is owing to contain organism such as fustiness material, can not directly drink, but after boiling etc., be used to drink temporarily.

Claims (13)

1. drinking water filtering system is characterized in that:
Comprise:
The ozone supply device, it in drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply;
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding;
And the tubular fibre membrane filter appts, it makes, and more to be in upstream side or to see through mean pore size than the drinking original water that above-mentioned gac groove more is in the downstream side than above-mentioned ozone supply device be that the hollow-fibre membrane of 0.001 μ m～1 μ m filters,
Above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: former water supply stream is connected with former water supply collector by open and close valve respectively, filtered water is discharged stream and is connected with filtered water discharge collector respectively, simultaneously this filtered water is discharged collector and is provided with open and close valve, and former water returns stream and returns collector by open and close valve with Yuan Shui respectively and be connected; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
2. drinking water filtering system according to claim 1 is characterized in that: have the air feeder of air mixed in the water that carries out mutual backwash between above-mentioned a plurality of tubular fibre filtering film components.
3. drinking water filtering system is characterized in that:
Comprise:
The ozone supply device, it in drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply;
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding;
And the tubular fibre membrane filter appts, it makes, and more to be in upstream side or to see through mean pore size than the drinking original water that above-mentioned gac groove more is in the downstream side than above-mentioned ozone supply device be that the hollow-fibre membrane of 0.001 μ m～1 μ m filters;
Above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: filtered water is discharged stream and is connected by open and close valve and filtered water discharge collector respectively, this filtered water is discharged collector and is connected with the water sucking mouth of suction pump, open and close valve is discharged collector with the filtered water that water port was connected of this suction pump and is connected, the backwash stream is connected by ramose backwash collector between open and close valve and the open and close valve of discharging collector from this filtered water and above-mentioned suction pump respectively, simultaneously, this backwash stream is discharged the open and close valve upstream side connection separately of stream in above-mentioned filtered water; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
4. drinking water filtering system is characterized in that:
Comprise:
The ozone supply device, it in drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply;
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding;
And the tubular fibre membrane filter appts, it makes, and more to be in upstream side or to see through mean pore size than the drinking original water that above-mentioned gac groove more is in the downstream side than above-mentioned ozone supply device be that the hollow-fibre membrane of 0.001 μ m～1 μ m filters;
Above-mentioned tubular fibre membrane filter appts sees through stoste to be immersed in the hollow-fibre membrane in the treatment trough and filters,
In addition, above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: filtered liquid is discharged stream and is connected by open and close valve and filtered liquid discharge collector respectively, this filtered liquid is discharged collector and is connected with the liquid sucting port of suction pump, the filtered liquid that open and close valve is connected with leakage fluid dram with this suction pump is discharged collector and is connected, the backwash stream is connected by ramose backwash collector between open and close valve and the open and close valve of discharging collector from this filtered liquid and above-mentioned suction pump respectively, and this backwash stream is discharged the open and close valve upstream side connection separately of stream at above-mentioned filtered liquid simultaneously; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can carry out mutual backwash between these a plurality of tubular fibre filtering film components.
5. drinking water filtering system according to claim 4, it is characterized in that: in above-mentioned treatment trough, be provided with air feeder, this drinking water filtering system has the aeration rate control device, when it carries out mutual backwash between above-mentioned a plurality of tubular fibre filtering film components, the aeration rate of the air of being supplied with by above-mentioned air feeder is increased.
6. drinking water filtering system according to claim 5 is characterized in that: above-mentioned aeration rate control device is to being immersed in the whole aeration rate that increases the air of being supplied with by above-mentioned air feeder of a plurality of tubular fibre filtering film components in the above-mentioned treatment trough.
7. drinking water filtering system according to claim 5 is characterized in that: above-mentioned aeration rate control device only increases the aeration rate of the air of being supplied with by above-mentioned air feeder to being immersed in tubular fibre filtering film component in a plurality of tubular fibre filtering film components in the above-mentioned treatment trough, in the backwash.
8. drinking water filtering system according to claim 5 is characterized in that: above-mentioned aeration rate control device to be formed on tubular fibre filtering film component in a plurality of tubular fibre filtering film components that are impregnated in the above-mentioned treatment trough, in the backwash and filter in the tubular fibre filtering film component between the zone increase the aeration rate of the air of supplying with by above-mentioned air feeder.
9. drinking water filtering system according to claim 4, it is characterized in that: in above-mentioned treatment trough, whipping appts is set, when between above-mentioned a plurality of tubular fibre filtering film components, carrying out mutual backwash, the liquid in this treatment trough is stirred by above-mentioned whipping appts.
10. drinking water filtering system is characterized in that:
Comprise:
The ozone supply device, it to drinking original water, decomposes the oxidation operations such as fustiness material that are contained in this drinking original water ozone supply;
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that carried out oxygenolysis by the ozone from above-mentioned ozone supply unit feeding;
The tubular fibre membrane filter appts, it makes than above-mentioned ozone supply device and more is in upstream side or filters than the hollow-fibre membrane that the drinking original water that above-mentioned gac groove more is in the downstream side sees through mean pore size 0.001 μ m～1 μ m;
Above-mentioned tubular fibre membrane filter appts sees through stoste to be housed in the hollow-fibre membrane in the external shell and filters,
In addition, above-mentioned tubular fibre membrane filter appts is made of following a plurality of tubular fibre filtering film components: stoste is supplied with stream and is connected by open and close valve and stoste supply collector respectively, and filtered liquid is discharged stream and is connected with filtered liquid discharge collector respectively, this filtered liquid is discharged collector and is provided with open and close valve simultaneously, and stoste returns stream and returns collector by open and close valve and stoste respectively and be connected, and the above-mentioned stoste of a side is returned stream and supplied with stream with the above-mentioned stoste of the opposing party and be connected by open and close valve respectively; Above-mentioned tubular fibre membrane filter appts utilizes the opening and closing operations of above-mentioned open and close valve, can make between these a plurality of tubular fibre filtering film components to be connected in series, and the flushing of this hollow-fibre membrane is cleaned in the outside that can make stoste flow to above-mentioned hollow-fibre membrane.
11. drinking water filtering system according to claim 10 is characterized in that: have with the air feeder of air mixed to the washing fluid that between above-mentioned a plurality of tubular fibre filtering film components, washes mutually.
12. a drinking water filtering system is characterized in that,
Comprise:
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that contained in the drinking original water;
It is that the hollow-fibre membrane of 0.001 μ m～1 μ m filters that tubular fibre membrane filter appts, this tubular fibre membrane filter appts make the drinking original water that more is in the downstream side than above-mentioned gac groove see through mean pore size;
The 1st relay flow path, its downstream side separately with above-mentioned each gac groove, above-mentioned each tubular fibre membrane filter appts upstream side separately together couple together;
And the 2nd relay flow path, it together couples together above-mentioned each tubular fibre membrane filter appts downstream side, above-mentioned the 1st relay flow path separately,
This drinking water filtering system is connected above-mentioned gac groove with many prescriptions formula side by side with above-mentioned tubular fibre membrane filter appts,
This drinking water filtering system utilizes the 1st open and close valve, the 2nd open and close valve, the opening and closing operations of the 3rd open and close valve, can between the tubular fibre filtering film component of these a plurality of gac grooves and above-mentioned a plurality of tubular fibre membrane filter apptss, carry out mutual backwash, the 1st open and close valve is separately positioned on the upstream side of above-mentioned each gac groove, the 2nd open and close valve is separately positioned on the both sides at the position that the 1st relay flow path on above-mentioned the 1st relay flow path is connected with above-mentioned the 2nd relay flow path, and the 3rd open and close valve is arranged on the downstream side at the position that the downstream side of above-mentioned each tubular fibre membrane filter appts is connected with above-mentioned the 2nd relay flow path.
13. a drinking water filtering system is characterized in that,
Comprise:
The gac groove, the gac in this gac groove adsorbs the organism such as fustiness material that contained in the drinking original water;
It is that the hollow-fibre membrane of 0.001 μ m～1 μ m filters that tubular fibre membrane filter appts, this tubular fibre membrane filter appts make the drinking original water that more is in the downstream side than above-mentioned gac groove see through mean pore size;
The 1st relay flow path, its downstream side separately with above-mentioned each gac groove, above-mentioned each tubular fibre membrane filter appts upstream side separately together couple together;
And the 2nd relay flow path, it together couples together above-mentioned each tubular fibre membrane filter appts downstream side, above-mentioned the 1st relay flow path separately,
This drinking water filtering system is connected above-mentioned gac groove with many prescriptions formula side by side with above-mentioned tubular fibre membrane filter appts,
This drinking water filtering system utilizes the 1st T-valve, the 2nd T-valve, the opening and closing operations of open and close valve and conversion operations, can between the tubular fibre filtering film component of these a plurality of gac grooves and above-mentioned a plurality of tubular fibre membrane filter apptss, carry out mutual backwash, the 1st T-valve is arranged on the upstream side of above-mentioned each gac groove, the 2nd T-valve is arranged on the position that the 1st relay flow path on above-mentioned the 1st relay flow path is connected with above-mentioned the 2nd relay flow path, and this open and close valve is arranged on the downstream side at the position that the downstream side of above-mentioned each tubular fibre membrane filter appts is connected with above-mentioned the 2nd relay flow path.
CN 200810149320 2007-09-18 2008-09-17 Drinking water filtering system Expired - Fee Related CN101391819B (en)

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102451618A (en) * 2010-10-28 2012-05-16 绵阳美能材料科技有限公司 System and method for carrying out gas washing on immersed hollow fibrous membranes
CN102657966B (en) * 2012-05-23 2014-07-23 宋泳 Quick suction filtration device
JP2014188469A (en) * 2013-03-27 2014-10-06 Kubota Corp Filtration method, and filtration apparatus and water treatment system using the same
CN103657426B (en) * 2014-01-03 2016-04-20 成都大学 A kind of domestic sewage in rural areas ultrafiltration back purge system
KR101875118B1 (en) * 2016-10-28 2018-07-06 한국수력원자력 주식회사 Apparatus for purifying geothermal water and purifying method thereof
JP6944821B2 (en) * 2017-06-27 2021-10-06 旭化成株式会社 Sterilizers, feeders, and sterilization methods
CN113072200B (en) * 2021-03-19 2022-06-21 福建兴恒机械科技有限公司 High-automatic-control digital environment-friendly water filter
CN113731005B (en) * 2021-09-03 2023-03-03 广西联环生态科技有限公司 Back flush filtration structure before pump
CN114849487A (en) * 2022-06-01 2022-08-05 北京北排膜科技有限公司 Cleaning system and method for ultrafiltration membrane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2401536Y (en) * 1999-12-21 2000-10-18 王云峰 Drinking water treatment machine
CN2484314Y (en) * 2001-01-15 2002-04-03 上海欧臣环境高科技有限责任公司 Pure-water treatment apparatus
CN2533123Y (en) * 2002-03-01 2003-01-29 长春安特涂装技术工程有限公司 Ultrafiltering and reverse osmosis combined enclosed cleaning recovery device
CN1548219A (en) * 2003-05-13 2004-11-24 天津膜天膜工程技术有限公司 Operation method of externally pressurized hollow fiber membrane separator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130516A (en) * 1981-02-02 1982-08-13 Nec Corp Flow line switching means for ultrafiltration device
JPS6283004A (en) * 1985-10-08 1987-04-16 Asahi Chem Ind Co Ltd Back washing process of filtration device
JP3013646B2 (en) * 1993-02-09 2000-02-28 東レ株式会社 Filtration device
JP3408699B2 (en) * 1996-09-05 2003-05-19 株式会社クボタ Sewage treatment equipment using immersion type membrane separation equipment
JP3667475B2 (en) * 1996-12-24 2005-07-06 株式会社ノリタケカンパニーリミテド Filtration device backwash method
JPH11221584A (en) * 1998-02-04 1999-08-17 Hitachi Ltd Pressurized ozone treating system and device
JP2002028651A (en) * 2000-07-17 2002-01-29 Mitsubishi Rayon Co Ltd Purified water treatment system and purified water treatment method
JP4882164B2 (en) * 2001-05-28 2012-02-22 栗田工業株式会社 Membrane filtration device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2401536Y (en) * 1999-12-21 2000-10-18 王云峰 Drinking water treatment machine
CN2484314Y (en) * 2001-01-15 2002-04-03 上海欧臣环境高科技有限责任公司 Pure-water treatment apparatus
CN2533123Y (en) * 2002-03-01 2003-01-29 长春安特涂装技术工程有限公司 Ultrafiltering and reverse osmosis combined enclosed cleaning recovery device
CN1548219A (en) * 2003-05-13 2004-11-24 天津膜天膜工程技术有限公司 Operation method of externally pressurized hollow fiber membrane separator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2005-342609A 2005.12.15

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