CN103313775B - Reverse osmosis processing device - Google Patents
Reverse osmosis processing device Download PDFInfo
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- CN103313775B CN103313775B CN201180061040.1A CN201180061040A CN103313775B CN 103313775 B CN103313775 B CN 103313775B CN 201180061040 A CN201180061040 A CN 201180061040A CN 103313775 B CN103313775 B CN 103313775B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
- B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/06—Specific process operations in the permeate stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/14—Pressure control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2317/00—Membrane module arrangements within a plant or an apparatus
- B01D2317/02—Elements in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Provided is a reverse osmosis processing device (10) provided with: a first pressurized vessel (80) that performs primary processing of water to be processed; and a second pressurized vessel (82) that performs secondary processing of water to be processed that has been processed by the primary processing. In each of the first pressurized vessel (80) and the second pressurized vessel (82), at least one reverse osmosis membrane element (22) provided with a reverse osmosis membrane (28) is disposed, a plurality of which are connected in series by a water collection tube (34) through which permeated water flows, and the number of reverse osmosis membrane elements (22) in the first pressurized vessel (80) is the same or fewer than the number of reverse osmosis membrane elements (22) in the second pressurized vessel (82). As a result, it is possible to easily replace reverse osmosis membrane elements.
Description
Technical field
The present invention relates to reverse osmosis treatment device, particularly relate to the reverse osmosis treatment device that easily can carry out element replacement.
Background technology
Employing reverse osmosis membrane (being designated as RO(Reverse Osmosis below) film) desalting processing device in, in order to utilize reverse osmosis pressure, as shown in Figure 8, being configured to the multiple RO membrane component 222 of arranged in series in cylindric pressurizing vessel 224, connect each RO membrane component 222 with the pipe arrangement 234 that catchments of the central authorities being positioned at RO membrane component 222.Supply for feedwater from a side of desalting processing device by high-pressure pump, the aperture according to the valve being arranged on condensed water side is pressurizeed in pressurizing vessel 224.When the pressure pressurizeed has exceeded the osmotic pressure for feedwater, flow into desalted water (through water) through RO film to the pipe arrangement 234 that catchments of central authorities.
Being supplied in pressurizing vessel 224 and uprising from for feedwater lateral condensation water side salinity for feedwater, thus the pressure in pressurizing vessel 224 finally determine final level salinity and through the water yield, the pressure that pressurizeed by the supply water flow velocity of face.Therefore, the pressure of more than the required degree that applies for feedwater side in pressurizing vessel 224, so increase through the water yield.Such as by the relation of the position of RO membrane component when seven RO membrane component 222 arranged in series and relative flux (RelativeFlux) (relative a fluid stream) as shown in Figure 9.Position of components in Fig. 9 is from the number for feedwater side.Known as shown in Figure 9, for the many through the water yield of side that feed water, along with to condensed water side, reduce through the water yield.This is because processed water uprises along with to condensed water side salinity, so need high pressure in condensed water side, but also applying same pressure for feedwater side, so more through water for the generation of feedwater side.Like this, as shown in Figure 9, uneven through the water yield in pressurizing vessel 224, required drive increases thus, for the pollution expansion of the RO membrane component of feedwater side.
In order to solve such problem, such as in following patent document 1, describe a kind of seawater water desalination device, it is provided with: the central portion in pressurizing vessel in the coupling part of RO membrane component by catchment pipe arrangement blocking connector; With from this catchment pipe arrangement by before and after being divided into through water externally discharge respectively through water pipeline.
Look-ahead technique document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-179264 publication
Summary of the invention
Invent problem to be solved
When carrying out the replacing of RO membrane component, usually the RO membrane component for feedwater side the most easily polluted being taken out, adding new RO membrane component in condensed water side, change thus.But in the device that patent document 1 is recorded, the connector due to the pipe arrangement that blocking catchmented is arranged on the connecting portion of RO membrane component, if so change by such method, then the position of connector changes, so cannot change.Therefore, connector is reinstalled, spended time labour after needing RO membrane component once to decompose.
The present invention makes in view of such situation, and its object is to provides a kind of reverse osmosis treatment device that easily can carry out the replacing of RO membrane component.
For solving the means of problem
In order to reach above-mentioned purpose, first scheme of the present invention provides a kind of reverse osmosis treatment device, and wherein, this reverse osmosis treatment device possesses: the first pressure vessel processed water being carried out to single treatment; Described processed water by described single treatment process is carried out to the second pressure vessel of after-treatment; with more than one reverse-osmosis membrane element, each reverse-osmosis membrane element possesses reverse osmosis membrane and supplies have passed through the pipe arrangement that catchments through water flow of described reverse osmosis membrane, described more than one reverse-osmosis membrane element is connected in series multiple configuration by the described pipe arrangement that catchments in described first pressure vessel and in described second pressure vessel, described first pressure vessel possesses the ingress pipe of supply processed water an end, the first condensed water discharge pipe that the described processed water after by described single treatment is discharged and first discharge pipe of will discharge through water is possessed in another end, described second pressure vessel possesses the ingress pipe of the described processed water after importing described single treatment an end, the second condensed water discharge pipe that the described processed water after by described after-treatment is discharged and second discharge pipe of will discharge through water is possessed in another end, the number of the described reverse-osmosis membrane element in described first pressure vessel is identical with the number of the described reverse-osmosis membrane element in described second pressure vessel, or it is fewer than the number of the described reverse-osmosis membrane element in described second pressure vessel.
When multiple reverse-osmosis membrane element is connected in series carry out reverse-osmosis treated, the reverse osmosis membrane for feedwater side of processed water is easily polluted, so the frequency of reverse-osmosis membrane element changed for feedwater side is high.According to first scheme, be divided into the first pressure vessel and the second pressure vessel, just can carry out operation by the reverse-osmosis membrane element changing the first pressure vessel easily polluted.Further, the number of the reverse-osmosis membrane element in the first pressure vessel is set to identical with the number of the reverse-osmosis membrane element in the second pressure vessel or fewer than it, so can easily change.In addition, do not need to change the reverse-osmosis membrane element in the second pressure vessel being difficult to pollution, so can Long-Time Service.
According to alternative plan, in the reverse osmosis treatment device of first scheme of the present invention, comprise multiple described first pressure vessel.
Through water from reverse-osmosis membrane element for feedwater side through comparatively various flow.Therefore, the processed water be supplied in the second pressure vessel is fewer than the processed water importing to the first pressure vessel, so the processed water that the second single pressure vessel process can be utilized to discharge from multiple first pressure vessel, can process efficiently.
According to third program, of the present invention first or alternative plan reverse osmosis treatment device in, the first valve is also possessed, by regulating the first valve to regulate by the flow through water described in described first pressure vessel process at described first discharge pipe of described first pressure vessel.
In the reverse osmosis treatment device of third program, by utilizing the pressure in the first valve regulation first pressure vessel, the flow through water can be regulated.By reduce in the first pressure vessel through the water yield, the salinity of the processed water after single treatment can be reduced.Therefore, in after-treatment, even if low also can the making of applied pressure is increased through the water yield, so can make to become many through the water yield as device entirety.
The effect of invention
According to the present invention, be configured with pressure vessel being divided into the first pressure vessel carrying out single treatment and both the second pressure vessels carrying out after-treatment.Therefore, it is possible to only decompose the first pressure vessel easily polluted, change the reverse-osmosis membrane element in the first pressure vessel, so can easily change.In addition, the reverse-osmosis membrane element in the second pressure vessel is difficult to pollute, so the number of times carrying out changing can be reduced, and can Long-Time Service.
Accompanying drawing explanation
Fig. 1 is the block diagram of the desalting processing system of the reverse osmosis treatment device being configured with embodiment.
Fig. 2 is the stereogram of the formation of the element of the reverse osmosis treatment device representing embodiment.
Fig. 3 is the element front view of state before the RO film winding representing the element shown in Fig. 2.
Fig. 4 is the front view of the element shown in Fig. 2.
Fig. 5 is the sectional view of the schematic configuration of the reverse osmosis treatment device representing embodiment.
Fig. 6 is the position of the RO membrane component of the reverse osmosis treatment device representing embodiment and the curve map through the relation of the relative flux of water.
Fig. 7 is the sectional view of the schematic configuration of the reverse osmosis treatment device representing other embodiments.
Fig. 8 is the sectional view of the schematic configuration of the reverse osmosis treatment device representing prior art.
Fig. 9 is the position of the RO membrane component of the reverse osmosis treatment device representing prior art and the curve map through the relation of the relative flux of water.
Detailed description of the invention
Below, based on accompanying drawing, the preferred embodiment of the present invention is described.The present invention is illustrated by following preferred embodiment, but can not be changed by a lot of means with departing from the scope of the present invention, and can utilize other embodiments beyond present embodiment.Therefore, all changes in scope of the present invention are included in claims.
Fig. 1 is the block diagram of the desalting processing system 20 of the reverse osmosis treatment device 10 assembling embodiment.In addition, the desalting processing system in the present invention can be used in such as drainage water reuse, pure water manufacture, strong brine desalination, seawater desalination etc. and processed water is carried out to the system of reverse-osmosis treated.
Desalting processing system 20 shown in this figure is formed by storing the tank 12 of processed water, high-pressure pump 14 and reverse osmosis treatment device 10.The processed water of tank 12 passes through high-pressure pump 14 with high voltage supply to reverse osmosis treatment device 10, reverse-osmosis treated (desalting processing) is carried out by each RO film (process film) of reverse osmosis treatment device 10, thus, be separated into desalination through water (Separation of Water) 16 and the condensed water (processed water) 18 concentrating salinity.The outside being discharged to reverse osmosis treatment device 10 through water 16 via discharge pipe obtained like this, condensed water 18 too via from discharge the outside being discharged to reverse osmosis treatment device 10 through the discharge pipe that the discharge pipe of water is different.In addition, in the desalting processing system 20 of embodiment, by high-pressure pump 14 by processed water with high voltage supply to reverse osmosis treatment device 10, but at the condensed water outlet side of reverse osmosis treatment device 10, valve is set, set the pressure in reverse osmosis treatment device 10 by the aperture of valve.
As the processed water in tank 12, can directly use former water, but preferably use is implemented pre-treatment and eliminates the processed water of turbidity composition contained in former water etc.Have as pre-treatment: utilize the process that filter carries out; And to sedimentation basin import former water and add the bactericide such as chlorine, precipitation removing former water in particle and the process of killing microorganisms etc.In addition, also can use and in former water, add the flocculating agents such as iron chloride and turbidity composition is condensed and is crossed to filter and the processed water that obtains.
Reverse osmosis treatment device 10 is formed in the following manner, that is: the element of shown in Fig. 2 22 or multiple element 22 ground of connecting are filled into the first container 80, the second container 82 of the cylindrical shape shown in Fig. 5, make the first assembly 84, second assembly 86, be a unit with this first assembly 84 and the second assembly 86, be used alone or be connected in parallel.
As shown in Figure 2, the film unit 32 comprising RO film 28 and discharge pipe 30 is configured in the surrounding of the pipe arrangement 34 that catchments and composed component 22.Film unit 32 passes through as shown in Figure 3 by the RO film 28,28 of four bag shapes ... radially to be connected with the peripheral part of the pipe arrangement 34 that catchments and by these RO films 28,28 ... be wound in the surrounding of the pipe arrangement 34 that catchments as shown in Figure 4 in the shape of a spiral and form.The one end open of the RO film 28 of bag shape, the mode be communicated with the through hole 36 of the pipe arrangement 34 that catchments shown in this opening portion with Fig. 3, RO film 28 is adhered to the pipe arrangement 34 that catchments.Processed water is by flowing at the outer surface of RO film 28, be desalted through RO film 28.Further, catchment in pipe arrangement 34 through to be pooled to from the inner side of RO film 28 via the opening of RO film 28 and the through hole 36 of the pipe arrangement 34 that catchments through water after the desalination of RO film 28, from catchmenting, pipe arrangement 34 is discharged from element 22 via discharge pipe 30.In addition, the Reference numeral 38 of Fig. 3 is the netted separator of the inside being configured in RO film 28.By this separator 38, even if RO film 28 reels in the shape of a spiral, also the inner space of RO film 28 is held in and can not flattens.In addition, Reference numeral 40 is configured in the netted separator between adjacent RO film 28,28.This separator 40 is also radially bonded in the peripheral part of the pipe arrangement 34 that catchments in the same manner as RO film 28.
Fig. 5 is the sectional view of the reverse osmosis treatment device 10 of embodiment.In the present embodiment, show the first assembly 84 carrying out single treatment be connected in series by two elements 22 in the first container 80, and show the second assembly 86 carrying out after-treatment be connected in series by five elements 22 in second container 82.End (both ends) opening of the first container 80, is not processed by the first container 80 and the first condensed water (processed water after single treatment) of staying to make to import processed water and to discharge.End (both ends) opening of second container 82, is not processed by second container 82 and the second condensed water (processed water after after-treatment) of staying to make to import the condensed water (processed water after single treatment) of discharging from the first container 80 and to discharge.In the opening portion of the introduction side of the first container 80, apply predetermined operating pressure by high-pressure pump 14.In addition, the first container 80, second container 82 also can by FRP(FiberReinforced Plastic, fibre reinforced plastics) etc. formation, to make it possible to withstand high pressures (more than 5MPa).In addition, preferably by the first container 80 and second container 82 also by by being connected by the pipe that forms of the material of withstand high pressures.
As shown in Figure 5, the first container 80 comprises: import in the first container 80 processed water ingress pipe 56 and by processed water not through catchmenting pipe arrangement 34 and the first condensed water discharge pipe 62 that the first condensed water of staying is discharged.Be pooled to by RO film 28 catchment in pipe arrangement 34 through water, discharge from the first container 80 via the first discharge pipe 58 being located at the first condensed water discharge pipe 62 side.Measuring appliance 66 and the first valve 64 is provided with in the outlet of the first discharge pipe 58.
Second container 82 comprises: import in second container 82 first condensed water of discharging from the first container 80 ingress pipe 68 and by not through catchmenting pipe arrangement 34 and the second condensed water discharge pipe 70 that the second condensed water of staying is discharged.The condensed water dump valve 74 of the pressure regulated in second container 82 is provided with in the outlet of the second condensed water discharge pipe 70.Discharging from second container 82 via the second discharge pipe 72 being located at the second condensed water discharge pipe 70 side through water in pipe arrangement 34 of catchmenting is pooled to by RO film 28.Measuring appliance 76 is provided with in the outlet of the second discharge pipe 72.
According to this reverse osmosis treatment device 10, the processed water supplied via ingress pipe 56 from the tank 12 of Fig. 1 is directed to element 22 via stream 57, and processed water is pooled to the pipe arrangement 34 that catchments after sequentially passing through the RO film 28 of element 22.In the present embodiment, carry out reverse-osmosis treated by the first container 80 and this two-stage of second container 82, what processed in the first container 80 discharges from the first container 80 via the first discharge pipe 58 through water.Not through catchmenting pipe arrangement 34 and the first condensed water of staying is discharged from the first condensed water discharge pipe 62, the ingress pipe 68 via second container 82 is supplied to, and is directed to element 22 via stream 69, is pooled to the pipe arrangement 34 that catchments after sequentially passing through RO film 28.What processed in second container 82 discharges from second container 82 via the second discharge pipe 72 through water.Do not discharge from the second condensed water discharge pipe 70 through catchment pipe arrangement 34 and the second condensed water stayed.
Fig. 6 is the figure of the position (transverse axis) of the RO membrane component of the reverse osmosis treatment device representing embodiment and the relation through the relative flux (longitudinal axis) of water.In addition, data of the present invention in the first container, arrange two elements (the position of components NO.1 and 2 of Fig. 6 transverse axis), arrange five elements (position of components NO.3 ~ 7 of Fig. 6 transverse axis) carry out testing and the data obtained at second container.In the prior art, from generating more through water for feedwater side, along with to condensed water side, the amount through water reduces.This is because the pressure put in container is determined by the pressure of the element putting on final level.On the other hand, in the present invention, the pressure in the first container 80 can be adjusted with the first valve 64, so as shown in Figure 6, relative flux (Relative Flux) (relative a fluid stream) can be set as desired value, (control) can be reduced through the water yield.By reduce in the first container 80 through the water yield, the salinity of the first condensed water can be reduced, so as shown in the position of components 3 ~ 7 of Fig. 6, also can increase through the water yield in second container 82.Therefore, it is possible to eliminate uneven through the water yield of each RO membrane component, thereby, it is possible to improve device entirety through the water yield.
In addition, flow in first container 80 can regulate the aperture of the first valve 64 to adjust according to the numerical value measured by measuring appliance 66, the flow in second container 82 can regulate the aperture of condensed water dump valve 74 to adjust according to the numerical value measured by measuring appliance 76 too.In addition, between high-pressure pump 14 and reverse osmosis treatment device 10, arrange pressure gauge, according to manometric numerical value, adjusting high-pressure pump 14, also can control the flow through water thus.Measuring appliance 66,76 can use traffic meter, pressure gauge, conductivity meter.By measuring conductance, the prevention rate of salinity can be monitored, the amount through water can be confirmed.
In addition, about the number of element 22, in Figure 5, in the first container 80, be provided with two elements, in second container 82, be provided with five elements, but be not limited to this.But the number of the element 22 preferably in the first container 80 is identical with the number of the element in second container 82, or fewer than it.About the pollution of element 22, the element 22 for feedwater side is easily polluted, so by the element 22 in replacing first container 80, and can in the overall generation carried out efficiently through water of device.Therefore, by reducing the number of the element 22 in the first container 80, the replacing of the element 22 in the first container 80 easily can be carried out.As can be seen from Figure 6, discharge through water if consider from the first container 80, then preferably the first container 80 in, use two elements, but even if also just enough from the viewpoint configuration element polluted.The number of the element in the first container 80 is preferably one ~ tetra-, is more preferably two ~ tri-.
Fig. 7 is the sectional view of the reverse osmosis treatment device 110 of other embodiments.Reverse osmosis treatment device 110 shown in Fig. 7 is provided with two first containers 80a, 80b, and the reverse osmosis treatment device 10 shown in this point from Fig. 5 is different.The quantitative change through water processed in first container 80a, 80b is many, untreated at first container 80a, 80b and quantitative change that is the first condensed water stayed is few.As shown in Figure 7, by the first condensed water from multiple first container is supplied to second container 82, can process efficiently.In the reverse osmosis treatment device 110 shown in Fig. 7, also respectively measuring appliance 66a, 66b, first valve 64a, 64b are set at first container 80a, 80b, the pressure in first container 80a, 80b can be regulated to regulate amount through water with each first valve 64a, 64b.
According to the present invention, each element 22,22 can be eliminated ... uneven through the water yield, obtain many through the water yield with low-pressure.In addition, by pressure vessel is divided into two, reduce the number of the RO membrane component in the pressure vessel of the prime that RO film is easily polluted, can easily carry out changing and Long-Time Service RO film is difficult to the pressure vessel of the rear class polluted.
Description of reference numerals
10, 110 ... reverse osmosis treatment device, 12 ... tank, 14 ... high-pressure pump, 16 ... through water, 18 ... condensed water, 20 ... desalting processing system, 22 ... element, 24 ... container, 28 ... RO film, 30 ... discharge pipe, 32 ... film unit, 34 ... catchment pipe arrangement, 36 ... open-work, 38, 40 ... separator, 56 ... ingress pipe, 57 ... stream, 58 ... first discharge pipe, 62 ... first condensed water discharge pipe, 64 ... first valve, 66, 76 ... measuring appliance, 68 ... ingress pipe, 69 ... stream, 70 ... second condensed water discharge pipe, 72 ... second discharge pipe, 74 ... second valve, 80 ... first container, 82 ... second container, 84 ... first assembly, 86 ... second assembly.
Claims (2)
1. a reverse osmosis treatment device, is characterized in that, possesses and carries out the first pressure vessel of single treatment to processed water and the described processed water by described single treatment process is carried out to the second pressure vessel of after-treatment,
In described first pressure vessel and in described second pressure vessel, multiple be configured with the reverse-osmosis membrane element possessing reverse osmosis membrane by for being connected in series through the pipe arrangement that catchments of water flow,
Described first pressure vessel possesses the ingress pipe of supply processed water an end, the first condensed water discharge pipe that the described processed water after by described single treatment is discharged and first discharge pipe of will discharge through water is possessed in another end, described second pressure vessel possesses the ingress pipe of the described processed water after importing described single treatment an end, the second condensed water discharge pipe that the described processed water after by described after-treatment is discharged and second discharge pipe of will discharge through water is possessed in another end
The number of the described reverse-osmosis membrane element in described first pressure vessel is 2 ~ 3, and the number of the described reverse-osmosis membrane element in described first pressure vessel is fewer than the number of the described reverse-osmosis membrane element in described second pressure vessel,
Pipe is discharged for the first valve and first measuring appliance of measurement from least one the flow through water, pressure and conductance that described first discharge pipe is discharged at described first of described first pressure vessel, by regulating described first valve according to the measured value of described first measuring appliance, thus regulate by the flow through water described in described first pressure vessel process.
2. reverse osmosis treatment device as claimed in claim 1, it is characterized in that, the second valve and second measuring appliance of measurement from least one the flow through water, pressure and conductance that described second discharge pipe is discharged is possessed at described second condensed water discharge pipe, by regulating described second valve according to the measured value of described second measuring appliance, thus regulate by the flow through water described in described second pressure vessel process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410771634.7A CN104492270B (en) | 2010-12-20 | 2011-12-14 | reverse osmosis treatment device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010283593A JP5597122B2 (en) | 2010-12-20 | 2010-12-20 | Reverse osmosis processing equipment |
| JP2010-283593 | 2010-12-20 | ||
| PCT/JP2011/078860 WO2012086479A1 (en) | 2010-12-20 | 2011-12-14 | Reverse osmosis processing device |
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| CN201410771634.7A Division CN104492270B (en) | 2010-12-20 | 2011-12-14 | reverse osmosis treatment device |
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| CN103313775A CN103313775A (en) | 2013-09-18 |
| CN103313775B true CN103313775B (en) | 2015-07-01 |
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| CN201180061040.1A Active CN103313775B (en) | 2010-12-20 | 2011-12-14 | Reverse osmosis processing device |
| CN201410771634.7A Active CN104492270B (en) | 2010-12-20 | 2011-12-14 | reverse osmosis treatment device |
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| JP (1) | JP5597122B2 (en) |
| CN (2) | CN103313775B (en) |
| WO (1) | WO2012086479A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5923294B2 (en) * | 2011-12-19 | 2016-05-24 | 株式会社日立製作所 | Reverse osmosis processing equipment |
| JP6049498B2 (en) | 2013-02-25 | 2016-12-21 | 三菱重工業株式会社 | Reverse osmosis membrane device and operating method thereof |
| JP5974386B2 (en) * | 2013-02-28 | 2016-08-23 | 株式会社日立製作所 | Seawater desalination system |
| JP2014172010A (en) * | 2013-03-12 | 2014-09-22 | Hitachi Ltd | Water treatment system |
| WO2015129132A1 (en) * | 2014-02-28 | 2015-09-03 | 株式会社日立製作所 | Desalination system |
| CN105251362A (en) * | 2014-07-14 | 2016-01-20 | 韩佳（上海）环保设备有限公司 | Water saving type household reverse osmosis RO membrane assembly |
| CN104383814A (en) * | 2014-10-24 | 2015-03-04 | 苏州富奇诺水治理设备有限公司 | Horizontally transversely placed double-roll mixed-flow type water filtering film component |
| JP2016083641A (en) * | 2014-10-29 | 2016-05-19 | 株式会社日立製作所 | Reverse osmosis treatment device and method of washing reverse osmosis membrane |
| JP6216847B2 (en) * | 2016-08-22 | 2017-10-18 | 株式会社日立製作所 | Reverse osmosis processing equipment |
| WO2019146342A1 (en) * | 2018-01-25 | 2019-08-01 | 東レ株式会社 | Membrane separation system and operation method for membrane separation system |
| CN109052570B (en) * | 2018-08-28 | 2021-04-23 | 北京亦庄水务有限公司 | Reverse osmosis online water quality parameter acquisition system |
| US11320206B2 (en) * | 2019-10-04 | 2022-05-03 | Hamilton Sundstrand Corporation | Pressure vessel with barrier layer |
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| CN201284254Y (en) * | 2008-09-04 | 2009-08-05 | 浙江玉泉环境工程有限公司 | Membrane mixed type low pollution water treatment device |
| CN101428913A (en) * | 2008-12-11 | 2009-05-13 | 彩虹彩色显像管总厂 | Reverse osmosis water production process |
| CN201485313U (en) * | 2009-07-27 | 2010-05-26 | 厦门市天泉鑫膜科技有限公司 | Mixed loading membrane separation device |
-
2010
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| Publication number | Publication date |
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| JP2012130840A (en) | 2012-07-12 |
| CN103313775A (en) | 2013-09-18 |
| WO2012086479A1 (en) | 2012-06-28 |
| CN104492270B (en) | 2017-01-04 |
| CN104492270A (en) | 2015-04-08 |
| JP5597122B2 (en) | 2014-10-01 |
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