CN106277531B - Utilize intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system and method - Google Patents
Utilize intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system and method Download PDFInfo
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- CN106277531B CN106277531B CN201610815006.3A CN201610815006A CN106277531B CN 106277531 B CN106277531 B CN 106277531B CN 201610815006 A CN201610815006 A CN 201610815006A CN 106277531 B CN106277531 B CN 106277531B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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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
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention provide it is a kind of utilize intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system and method, including intensified by ultrasonic wave system, multistage forward osmosis membrane separation system and driving liquid circulation and concentration systems；Intensified by ultrasonic wave system includes generating device and intensifying device；Forward osmosis membrane in multistage forward osmosis membrane separation system is the semi-permeable membrane with interception function；It drives liquid circulation and the core of concentration systems is Multi-effect evaporator system, driving liquid is the sodium chloride with high concentration or the neutral inorganic solution of other high concentrations easily distilled.The present invention uses the method for operation of intensified by ultrasonic wave multistage forward osmosis membrane component separation, that is, can effectively ensure that sanitary sewage disposal standard water discharge, can also reduce fouling membrane, promotes membrane flux, keeps driving liquid concentration stable and efficient circulation, so that energy consumption be effectively reduced.The present invention may not only be applied to the processing of Sewage from Ships, it can also be used to the processing of daily life sewage.
Description
Technical field
The present invention relates to a kind of advanced sewage treatment system and method more particularly to a kind of utilization intensified by ultrasonic wave multistages just
Permeable membrane advanced sewage treatment system and method.
Background technique
Into after 21 century, ocean development and global economy and trade start to grow rapidly, and being not only shipping business, there are also shipbuilding industry
Unprecedented development is suffered from, but the pollution in the waters such as ocean and inland river, lake is also increasingly being aggravated while development.Largely
Sewage from Ships is drained into waters without being effectively treated, and can not only be had an impact to water environment biological, can also be jeopardized
Human health.
International Maritime Organization (IMO) and many countries discharge for Sewage from Ships and have formulated a series of stringent pacts
And standard, some developed countries even require to forbid ship to discharge any sewage in some specified sea areas and harbour, to avoid
The water environments such as Sewage from Ships Marine Pollution, river, lake.These pacts and standard it is specified so that current ship life
The country that sewage treatment falls behind relatively receives many limitations in terms of international trade, shipping business.Currently, because of film point
It is small from device volume, influenced by ship motion and jolting small and the advantages that can effectively realize separation of solid and liquid, and be concerned, with
MBR is that the processing unit of core is widely used in Sewage from Ships process field.However, as marine environment is protected
Shield consciousness further strengthens, and IMO proposes the new standard MEPC.227 (64) that various countries in 2016 need to execute, and defines in new standard
Total nitrogen and total phosphorus after handling Sewage from Ships in draining have carried out stringent limitation.It is well known that at existing MBR peculiar to vessel
It is limited to processing water outlet total nitrogen and total phosphorus norm controlling ability to manage device, and the implementation of new standard certainly will threaten at existing MBR
Manage the processing capacity of device；In addition, serious fouling membrane present in widely applied MBR processing unit, and because fouling membrane is led
The frequent Membrane cleaning that causes and energy consumption and expense caused by replacing, also limit to a certain extent MBR processing unit into one
Walk promotion and application.Therefore, the exploitation of novel ship life processing system and processing method is imperative.
Compared to general MBR processing system, forward osmosis membrane separation system has organic in preferable control sanitary sewage
The ability of object, total nitrogen and total phosphorus, and it is suitable for wider sewage pH range, it can be subjected to the impact of acid and alkali cleansing solution, there is height
Effect, low pollution, low energy consumption, the cycle of operation are long and the features such as stabilization.Therefore, development is using forward osmosis membrane system as the positive infiltration of core
The system and method for film advanced treating Sewage from Ships are, it can be achieved that effectively control out water pollutant (total nitrogen, total phosphorus, organic matter
Deng) index and decelerating membrane pollution, reduce the purpose of operating cost；Further use the processing of intensified by ultrasonic wave forward osmosis membrane system
Efficiency can both realize that treatment process was synchronous with Membrane cleaning, reduce fouling membrane, extend film service life, reach and continuously run for a long time,
Also it can be relieved the problem of reducing in operational process because of osmotic engine caused by concentration polarization and draining flux, to improve film point
From efficiency.As it can be seen that development has centainly with the system and method for intensified by ultrasonic wave forward osmosis membrane advanced treating Sewage from Ships
Innovative significance and application value.
Summary of the invention
The purpose of the invention is to Sewage from Ships, decelerating membrane pollution can be effectively treated and realize that driving liquid is efficient
It is recycling and utilize and provide it is a kind of utilize intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system and method.
The object of the present invention is achieved like this: following including forward osmosis membrane separate section, intensified by ultrasonic wave part, driving liquid
Ring and concentrating part, forward osmosis membrane separate section at least two-stage, every grade of forward osmosis membrane separate section include water inlet tank, water inlet
Side peristaltic pump and water outlet side peristaltic pump, influent side valve and water outlet side valve, influent side flowmeter and water outlet side flowmeter, water inlet
Side inlet gage, forward osmosis membrane component；Intensified by ultrasonic wave part includes the reinforcing on the forward osmosis membrane component for be arranged in every grade
Device and the generating device being connect with intensifying device；It drives liquid circulation and concentrating part includes that driving flow container and driving flow container connect
The high-efficiency evaporator connect, and drive the number of flow container and high-efficiency evaporator equal with the series of forward osmosis membrane separate section；
The forward osmosis membrane component is square frame structure, and is provided with forward osmosis membrane in square frame structure, just
Ultrasonic wave vibration plate there are five being respectively set on the water inlet side wall and water outlet side wall of permeable membrane element, and five ultrasonic wave vibration plates are constituted
Intensifying device, five ultrasonic wave vibration plates are located at four angles and center of corresponding side wall, and four on each side wall
The ultrasonic wave vibration plate at angle is connect after connecting respectively with the ultrasonic wave vibration plate of center with generating device, forward osmosis membrane component into
It is provided with influent side water inlet pipe and influent side outlet pipe on water side wall, is provided with water outlet side on the water outlet side wall of forward osmosis membrane component
Water inlet pipe and water outlet side outlet pipe；
No.1 pump is provided between the water inlet tank of adjacent two-stage, the first interface of every grade of water inlet tank is sequentially connected influent side
After peristaltic pump, influent side valve, influent side flowmeter, influent side inlet gage with the influent side of corresponding forward osmosis membrane component
Water inlet pipe connection, the influent side outlet pipe of each forward osmosis membrane component are connected with the second interface of corresponding water inlet tank, Mei Gezheng
The water outlet side outlet pipe of permeable membrane element is connected with the lower end interface of corresponding driving flow container, drives the upper end interface of flow container successively
Connect water outlet side peristaltic pump, water outlet side valve, after water outlet side flowmeter with the water outlet side water inlet pipe of corresponding forward osmosis membrane component
Connection,
The bottom end of level-one driving flow container connect with the inlet of level-one high-efficiency evaporator and is arranged on pipeline between the two
Have No. two pumps, the bottom end of driving flow container more than secondary drive flow container and second level pass through respectively pipeline be sequentially connected No. three pumps,
The inlet of high-efficiency evaporator after first heating constant-temperature equipment with respective stages is connect, the first heating constant-temperature equipment also with upper level
High-efficiency evaporator liquid outlet connection, the liquid outlet of the high-efficiency evaporator of final stage by pipeline respectively with all driving flow containers
Upper end connection, the gas outlet of every grade of high-efficiency evaporator connect with the second heating constant-temperature equipment after with next stage high-efficiency evaporator
Steam inlet connection, the gas outlet of the high-efficiency evaporator of final stage is connected with condenser and fresh water collecting device in turn.
The invention also includes structure features some in this way:
1. the forward osmosis membrane separate section has three-level, corresponding driving flow container and high-efficiency evaporator number are three.
2. first based on the advanced treatment method for sewage water using intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system
First, the sanitary sewage injection level-one Jing Guo Biological Pretreatment is intake in tank, the life of the Biological Pretreatment in level-one water inlet tank
Sewage squeezes into level-one forward osmosis membrane component through influent side peristaltic pump, after intensified by ultrasonic wave, forms influent side circulation；Water outlet side is compacted
Level-one is driven the driving liquid in flow container to squeeze into forward osmosis membrane component by dynamic pump, after intensified by ultrasonic wave, forms water outlet side circulation, by
In forward osmosis membrane two sides liquid there are permeable pressure head, water spontaneous can enter water outlet side from influent side；No. two pump works simultaneously will
Liquid in level-one driving flow container squeezes into level-one high-efficiency evaporator through the inlet of level-one high-efficiency evaporator, and liquid is high by level-one
After imitating evaporator, steam enters second steam entrance through the gas outlet of level-one high-efficiency evaporator, surplus in level-one high-efficiency evaporator
Extraction raffinate body enters the inlet of second level high-efficiency evaporator through the liquid outlet of level-one high-efficiency evaporator, evaporates through second level high-efficiency evaporator
Afterwards, steam enters three-level steam inlet through the gas outlet of second level high-efficiency evaporator, the remaining liq warp in second level high-efficiency evaporator
The liquid outlet of second level high-efficiency evaporator enters the inlet of stage high-effective evaporator, and the gas outlet of stage high-effective evaporator successively connects
Connect condenser and fresh water collecting device；
Secondly, No.1 pump work between level-one water inlet tank and second level water inlet tank and the pre- place of biology that level-one is intake in tank
The sanitary sewage of reason is squeezed into second level water inlet tank, and the sanitary sewage for the Biological Pretreatment that second level is intake in tank is intake by influent side
Peristaltic pump squeezes into second level forward osmosis membrane component, under intensified by ultrasonic wave systemic effect, takes back second level water inlet through influent side outlet pipe
Tank, forms influent side circulation, and the driving liquid in secondary drive flow container is squeezed into second level forward osmosis membrane group by water outlet side water inlet peristaltic pump
Part takes back secondary drive flow container through water outlet side outlet pipe pipe under ultrasonic system invigoration effect, forms water outlet side and recycles, and two
Grade driving flow container bottom end connection No. three pump works and by secondary drive flow container liquid and level-one high-efficiency evaporator go out liquid
Mouth pipe accesses the first heating constant-temperature equipment together after connecing, and then the inlet through second level high-efficiency evaporator accesses second level high-efficiency evaporating
Device, steam enter stage high-effective evaporator through the gas outlet of second level high-efficiency evaporator, the remaining liq in second level high-efficiency evaporator
Liquid outlet through second level high-efficiency evaporator enters the inlet of stage high-effective evaporator,
Again, the No.1 pump work between second level water inlet tank and three-level water inlet tank and the pre- place of biology that second level is intake in tank
The sanitary sewage of reason is squeezed into three-level water inlet tank, and the sanitary sewage of the Biological Pretreatment in three-level water inlet tank is intake by influent side
Peristaltic pump squeezes into three-level forward osmosis membrane component, under intensified by ultrasonic wave systemic effect, takes back three-level water inlet through influent side outlet pipe
Tank, forms influent side circulation, and three-level is driven the driving liquid in flow container to squeeze into three-level forward osmosis membrane group by water outlet side water inlet peristaltic pump
Part takes back three-level driving flow container through water outlet side outlet pipe pipe, forms water outlet side and recycle under intensified by ultrasonic wave systemic effect, and three
Grade driving flow container bottom end connection No. four pump works and by three-level drive flow container in liquid and second level high-efficiency evaporator go out liquid
Mouth pipe accesses to the second thermostat after connecing, and then the inlet through three-level evaporator accesses three-level evaporator；
It takes back finally, highly concentrated liquid is passed through pipeline by the liquid outlet of stage high-effective evaporator respectively to level-one driving liquid
Tank, secondary drive flow container and three-level drive flow container, and the gas outlet of stage high-effective evaporator is sequentially connected condenser and fresh water collecting
The collection of device completion fresh water.
3. intensified by ultrasonic wave part is periodic running, i.e., every operation 15min stops 45min, reciprocation cycle.
4. the No.1 pump between water inlet tanks at different levels was successively run 1 hour every 11 hours；Driving flow container bottom end connections at different levels
No. two pump, No. three pump, No. four pump be also successively every 11 hours run 1 hour.
The principle of the present invention is: the Sewage from Ships after Biological Pretreatment is injected level-one forward osmosis membrane segregative line
The water inlet tank of system, influent side water inlet peristaltic pump of the water in tank of intaking Jing Guo level-one forward osmosis membrane separation system squeeze into forward osmosis membrane
Component is taken back into water tank by influent side outlet pipe after membrane module efficiently separates under intensified by ultrasonic wave effect, forms influent side
Circulation.Level-one forward osmosis membrane separation system water outlet side water inlet peristaltic pump will drive the driving liquid in flow container to squeeze into forward osmosis membrane group
Part reduces concentration polarization under intensified by ultrasonic wave effect, takes back level-one driving flow container by water outlet side outlet pipe pipe, forms water outlet
Side circulation.Due to the continuous recycled back of the water flow of forward osmosis membrane two sides, so that by the permeable pressure head of permoselective membrane two sides
Membrane separating process for the spontaneous realization Water transport of driving force is more easy.With the continuous operation of forward osmosis membrane separation system, drive
Hydrodynamic concentration decline, for keep driving liquid concentration and driving liquid circulation, every grade of evaporator of Multi-effect evaporator system with every grade just
Permeable membrane separate System is used in series.Level-one is driven driving feed liquor of the liquid through level-one evaporator in flow container by pump during running
Mouth squeezes into level-one evaporator, drives liquid after level-one evaporator, and steam enters second steam entrance through level-one steam (vapor) outlet, remains
Extraction raffinate body enters the inlet of secondary evaporimeter through level-one liquid outlet.Water warp in the water inlet tank of level-one forward osmosis membrane separation system
The water inlet tank that pump squeezes into second level forward osmosis membrane separation system is crossed, the water in the water inlet tank of second level forward osmosis membrane separation system passes through two
The influent side water inlet peristaltic pump of grade forward osmosis membrane separation system squeezes into second level forward osmosis membrane component, takes back two through influent side outlet pipe
Grading water pot forms influent side circulation.Second level forward osmosis membrane separation system water outlet side water inlet peristaltic pump will drive the drive in flow container
Hydrodynamic squeezes into second level forward osmosis membrane component, and water outlet side outlet pipe pipe takes back secondary drive flow container, forms water outlet side circulation.Period pump
After the liquid outlet pipe of driving liquid and level-one evaporator in secondary drive flow container is connect, by heating constant-temperature equipment, guarantee certain
Temperature after, inlet through secondary evaporimeter accesses secondary evaporimeter, drives liquid after secondary evaporimeter, steam is through second level
Steam (vapor) outlet enters three-level evaporator, and remaining liq enters the inlet of three-level evaporator through second level liquid outlet.Three-level is just permeated
Similarly, difference is the liquid outlet of three-level evaporator to the operation method of film separation system and three-level driving liquid circulation and concentration systems
The liquid being discharged has been the driving liquid of higher concentration, ensure that the relatively stable of driving liquid concentration, therefore pipe takes back level-one, two
Grade, three-level driving liquid pipe use, and the steam outlet pipe of another three-level evaporator connects condenser, what steam was as collected after condensing to the cold
Fresh water.During system is run, intensified by ultrasonic wave device periodic running.
With the continuous operation of system, the fresh water in tank of intaking in sanitary sewage can be extracted to come by driving liquid, tank of intaking
Middle concentration of wastewater certainly will rise, and drive the concentration of liquid that certainly will decline.However pass through the fortune of the peristaltic pump between every two water inlet tank
Row, and the continuous operation of every grade of forward osmosis membrane separation system, it is being finally reached the result is that: three-level is intake concentration of wastewater > bis- in tank
Concentration of wastewater in concentration of wastewater > level-one water inlet tank in grading water pot.Due in every grading water pot driving liquid concentration difference,
Scoopability is different, therefore the fresh water that the driving liquid of same concentrations is drawn into is different, and as a result will lead to the concentration of driving liquid not
Together, therefore the processing that multi-effect evaporator carries out driving liquid can be corresponded to, because the concentration of the liquid outlet of every level-one evaporator is also different, therefore handle
Every grade of driving liquid accesses the evaporator of next stage after connecing with corresponding evaporator liquid outlet pipe.The driving liquid concentration of every grade of driving flow container
It is fed by final stage evaporator liquid outlet driving liquid, maintains the relatively stable of driving liquid concentration, driving liquid is followed
Ring uses.Final final evaporator, vapor outlet port are fresh water through condenser, and liquid outlet is the driving of higher concentration
Liquid.
During system is run, the mechanical oscillation generated in water using ultrasonic wave and microturbulence effect promote polluter
It is detached from from the surface of forward osmosis membrane, slows down Pollution of Ultrafiltration Membrane and develop rate；The atomizing that ultrasonic wave generates simultaneously can also be eliminated
Part concentration polarization phenomenon increases membrane flux.Whole process is easy to operate, and power consumption is low, to film without mechanical failure, it can be achieved that
Efficient domestic sewage processing.
Compared with prior art, the beneficial effects of the present invention are: the present invention uses intensified by ultrasonic wave multistage forward osmosis membrane group
The method of operation of part separation, that is, can effectively ensure that sanitary sewage disposal standard water discharge, can also reduce fouling membrane, promote membrane flux,
Keep driving liquid concentration stable and efficient circulation, so that energy consumption be effectively reduced.The present invention may not only be applied to Sewage from Ships
Processing, it can also be used to the processing of daily life sewage.Namely the present invention provides one kind using forward osmosis membrane isolation technics as core
The system and method for Sewage from Ships advanced treating intensified by ultrasonic wave system is aided with using multistage forward osmosis membrane separation system
Uniting, simultaneously decelerating membrane pollution develops rate to treatment efficiency, and another coupling, which is recycled and is concentrated using multi-effect evaporator as the driving liquid of core, is
System, and the two is classified and is corresponded to, it realizes that ultrasound efficiently separates purification process with the film under driving liquid driving, designs and transport from system
Row angle achievees the purpose that efficient process Sewage from Ships, mitigates fouling membrane and reduces energy consumption.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the enlarged diagram of part A in Fig. 1.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
It is of the invention to be using intensified by ultrasonic wave multistage forward osmosis membrane advanced treating Sewage from Ships in conjunction with attached drawing 1
System includes intensified by ultrasonic wave system, multistage forward osmosis membrane separation system and driving liquid circulation and concentration systems；Intensified by ultrasonic wave system
System includes generating device 33 and intensifying device 34.Every level-one forward osmosis membrane separation system of multistage forward osmosis membrane separation system includes
Water inlet tank 9, influent side peristaltic pump 11 and water outlet side peristaltic pump 6, influent side valve 12 and water outlet side valve 5, influent side flowmeter
13 with water outlet side flowmeter 4, influent side inlet gage 14, forward osmosis membrane component 16.Forward osmosis membrane component 16 by influent side into
Water pipe 15 and influent side outlet pipe 1, forward osmosis membrane 2 and water outlet side water inlet pipe 3 and water outlet side outlet pipe 17 are installed at high-intensitive material
It is made on the component of material.Water inlet tank 9, influent side flowmeter 13, influent side gate valve 12, influent side pressure gauge 14 and influent side are intake
Successively pipe connects pipe 15, and 17 pipe of influent side outlet pipe taps into water pot 9, and water outlet side flowmeter 4, water outlet side gate valve 5 and water outlet side are intake
Successively pipe connects pipe 3, and water outlet side outlet pipe 17 connects with driving 7 pipe of flow container；
The core for driving liquid circulation and concentration systems is Multi-effect evaporator system, including is discharged with forward osmosis membrane separation system
Side outlet pipe connection driving flow container 7,36,43, with driving flow container 7,36,43 connect high-efficiency evaporator, high-efficiency evaporator its
It is characterized in that including multistage evaporation tank and a condenser 29, every grade of evaporator is respectively provided with steam inlet 20, inlet 21, goes out liquid
Mouth 38, condensed water discharge outlet 44 and steam (vapor) outlet 23.Steam (vapor) outlet 23 is connected into heating constant-temperature equipment 24, later through steam pipe 25
Pipe accesses the steam inlet on adjacent evaporator, into adjacent evaporator.On liquid outlet 38 and adjacent evaporator into
Liquid mouth 39 connects, and the steam (vapor) outlet 28 of final stage evaporator connects condenser 29, and setting heated constant temperature fills on each prime evaporator
Set 37,46.8,35,42 pipes take back the drivings at different levels of multistage forward osmosis membrane separation system to the liquid outlet 48 of final stage evaporator by the road
Flow container (is not drawn into pipe link) in Fig. 1；
Every level-one driving flow container of multistage forward osmosis membrane separation system and the evaporator liquid outlet pipe of upper level connect, heated
After thermostat access next stage evaporator, such as: secondary drive flow container 36 connect with 38 pipe of level-one evaporator liquid outlet after through heating
The inlet 39 of dual evaporation tank is accessed after thermostat 37.The water inlet tank of the forward osmosis membrane separation system of every level-one is successively managed
It connects, pump is set between every two water inlets tank.Such as: the water in level-one water inlet tank 9 is squeezed into second level water inlet tank 31 by pump 10, and pump 32 is grading by two
Water in water pot 31 squeezes into three-level water inlet tank 41；
In conjunction with attached drawing 2, forward osmosis membrane component 16 is by influent side water inlet pipe 15 and influent side outlet pipe 1, forward osmosis membrane 2 and goes out
Water side water inlet pipe 3 is installed on the component of high-strength material with water outlet side outlet pipe 17 to be made.Ultrasonic wave of the present invention is strong
Change system is divided into generating device 33 and intensifying device 34, and intensifying device 34 is that muti-piece is arranged in the multistage forward osmosis membrane segregative line
System water inlet side wall and the ultrasonic wave vibration plate for being discharged side wall, ultrasonic wave vibration plate are installed on the centre and surrounding position of corresponding side inner wall
(only being provided in Fig. 2 into water side wall set-up mode, be discharged side wall arrangement form with side wall of intaking)；The generating device 33 is super
Sonic generator and PLC controller；The supersonic generator is orderly connect with ultrasonic wave vibration plate.
The material of forward osmosis membrane of the present invention is cellulose acetate film, tri cellulose acetate membrane, and the form of film used is
Plate membrane；Driving liquid is the sodium chloride with high concentration or the neutral inorganic solution of other high concentrations easily distilled.
Specific work process of the invention is:
One, the water outlet by sanitary sewage after Biochemical method (COD be 20~100mg/L, NH4-N be 5~20mg/L,
TP1~5mg/L), inject the water inlet tank 9 of level-one forward osmosis membrane separation system.The water intake in tank 9 is by level-one forward osmosis membrane point
Influent side water inlet peristaltic pump 11 from system squeezes into forward osmosis membrane component 16, in the generating device 33 of intensified by ultrasonic wave system and strong
It under the action of makeup sets 34, takes back through influent side outlet pipe 1 into water tank 9, forms influent side circulation.Drive the driving in flow container 7
Liquid (sodium chloride of 120g/L) squeezes into level-one forward osmosis membrane component through level-one forward osmosis membrane separation system water outlet side water inlet peristaltic pump 6
16, under the action of the generating device 33 of intensified by ultrasonic wave system and intensifying device 34, one is taken back through 17 pipe of water outlet side outlet pipe
Grade driving flow container 7, forms water outlet side circulation.Under the action of the generating device 33 of intensified by ultrasonic wave system and intensifying device 34,
The continuous recycled back of solution of two kinds of 16 two sides of forward osmosis membrane component with different osmotic so that water it is easier spontaneously from
Material liquid side reaches driving liquid side through film.Level-one is driven the driving liquid in flow container 7 through level-one by No. two pumps 19 when operation
The inlet 21 of evaporator squeezes into level-one evaporator, drives liquid after level-one evaporator, steam through level-one steam (vapor) outlet 23 into
Enter second steam entrance 45, the inlet 39 that remaining liq enters secondary evaporimeter through level-one liquid outlet 38 similarly continues through
Three-level evaporator, the liquid that the liquid outlet 48 of three-level evaporator goes out have been the driving liquid of higher concentration, ensure that driving liquid is dense
Degree it is relatively stable, therefore can pipe take back level-one driving flow container 7 reuse.In addition, 28 pipe of steam (vapor) outlet of three-level evaporator connects
Condenser 29, the fresh water that steam is as collected after condensing to the cold, is collected by fresh water collecting device 30.Whole system is stable,
The COD of effluent quality is not detected in 0~10mg/L, NH4-N, TP, TN, SS, and effluent quality can meet IMO new standard MEPC.227
(64) and sanitary sewage discharge standard.
Two, the water in the water inlet tank 9 of level-one forward osmosis membrane separation system squeezes into second level forward osmosis membrane segregative line by pump 10
The water inlet tank 31 of system, water in the water inlet tank 31 of second level forward osmosis membrane separation system by second level forward osmosis membrane separation system into
Water side water inlet peristaltic pump squeezes into second level forward osmosis membrane component, under intensified by ultrasonic wave systemic effect, takes back through influent side outlet pipe
Second level water inlet tank 31, forms influent side circulation.Second level forward osmosis membrane separation system water outlet side intakes peristaltic pump will driving flow container 36
In driving liquid squeeze into second level forward osmosis membrane component, under ultrasonic system invigoration effect, take back two through water outlet side outlet pipe pipe
Grade driving flow container 31, forms water outlet side circulation.Period three number pump 22 is run by the driving liquid and level-one in secondary drive flow container 36
38 pipe of liquid outlet of evaporator accesses heating constant-temperature equipment 37 after connecing, and then the inlet 39 through secondary evaporimeter accesses second level and steams
Device is sent out, drives liquid after secondary evaporimeter, steam accesses three-level after second steam outlet 26 enters heating constant-temperature equipment 27
Evaporator, remaining liq enter the inlet 40 of three-level evaporator through second level liquid outlet 49.Similarly, three-level evaporator is continued through
Processing.After processing, the liquid that the liquid outlet 48 of three-level evaporator goes out has been the driving liquid of higher concentration, ensure that driving liquid
Concentration it is relatively stable, therefore can pipe take back level-one driving flow container 7 and secondary drive flow container 36 reuse.In addition, three-level is evaporated
28 pipe of steam (vapor) outlet of device connects condenser 29, and the fresh water that steam is as collected after condensing to the cold is collected by fresh water collecting device 30.
Whole system is stable, and the COD of effluent quality is not detected in 0~10mg/L, NH4-N, TP, TN, SS, and effluent quality can meet
IMO new standard MEPC.227 (64) and sanitary sewage discharge standard.
Three, the water in the water inlet tank 31 of second level forward osmosis membrane separation system squeezes into three-level forward osmosis membrane segregative line by pump 32
The water inlet tank 41 of system, influent side water inlet peristaltic pump of the water in tank 41 of intaking Jing Guo three-level forward osmosis membrane separation system squeeze into three-level
Forward osmosis membrane component takes back through influent side outlet pipe into water tank 41 under intensified by ultrasonic wave systemic effect, forms influent side and follows
Ring.Three-level forward osmosis membrane separation system water outlet side water inlet peristaltic pump will drive the driving liquid in flow container 43 to squeeze into three-level forward osmosis membrane
Component takes back three-level driving flow container through water outlet side outlet pipe pipe, forms water outlet side circulation under intensified by ultrasonic wave systemic effect.
Access adds after No. four pumps 50 drive three-level 49 pipe of liquid outlet of driving liquid and secondary evaporimeter in flow container 43 to connect during operation
Hot thermostat 46, then the inlet 40 through three-level evaporator accesses three-level evaporator, drives liquid after three-level evaporator,
Steam is fresh water after condenser 29, is collected by fresh water collecting device 30.After processing, the liquid outlet 48 of three-level evaporator goes out
Liquid be higher concentration driving liquid, ensure that driving liquid concentration it is relatively stable, therefore can pipe take back level-one driving flow container
7, secondary drive flow container 36 and three-level driving flow container 43 are reused.Whole system is stable, the COD of effluent quality 0~
10mg/L, NH4-N, TP, TN, SS are not detected, and effluent quality can meet IMO new standard MEPC.227 (64) and sanitary sewage discharge
Standard.
And initial operation stage, the latter linked pump 19 of driving flow container can be with continuous service.
The present invention includes intensified by ultrasonic wave system, multistage forward osmosis membrane separation system and driving liquid circulation and concentration systems；
Intensified by ultrasonic wave system includes generating device and intensifying device.Every level-one forward osmosis membrane of multistage forward osmosis membrane separation system separates
System includes water inlet tank, influent side peristaltic pump and water outlet side peristaltic pump, influent side valve and water outlet side valve, influent side flowmeter
With water outlet side flowmeter, influent side inlet gage, forward osmosis membrane component.Driving liquid circulation and the core of concentration systems is multiple-effect
Evaporator system, including connect with forward osmosis membrane separation system water outlet side outlet pipe driving flow container, with driving liquid it is tank connected
High-efficiency evaporator, heating constant-temperature equipment.Mutually successively pipe connects the water inlet tank of the forward osmosis membrane separation system of every level-one, every two water inlet
Pump is set between tank.
The intensified by ultrasonic wave system, intensifying device are that muti-piece is arranged in the multistage forward osmosis membrane separation system water inlet
The ultrasonic wave vibration plate of side wall and water outlet side wall, the centre and surrounding position that ultrasonic wave vibration plate is installed on corresponding side inner wall are (see explanation
Book attached drawing)；The generating device is supersonic generator and PLC controller；The supersonic generator and ultrasonic wave shakes
Plate orderly connects.
The material of forward osmosis membrane is cellulose acetate film, tri cellulose acetate membrane, and form is plate membrane；System driving used
Liquid is the sodium chloride of high concentration or the neutral inorganic solution of other high concentrations easily distilled.
The membrane module be it is flat, every grade of film separation system is divided into influent side and water outlet side, and two sides liquid reversely follows
Inscription of loop, pipe taps into water pot and driving flow container respectively.
Heating constant-temperature equipment is set on each prime evaporator, and setting heated constant temperature fills after the liquid outlet of each evaporator
It sets.The every level-one driving flow container and the evaporator liquid outlet pipe of every level-one of multistage forward osmosis membrane separation system connect, heated constant temperature
Next stage evaporator is accessed after device.
The setting of the multistage forward osmosis membrane separation system and Multi-effect evaporator system, the two series is not limited to three
Grade factually border water quality treatment and water situation can be increased and decreased setting, but the series setting of two systems is equal to each other, and final stage
The device connection of evaporator is equal to the connection type of the three-level evaporator.
Method using the multistage positive penetration depth processing Sewage from Ships of intensified by ultrasonic wave of the invention, using such as lower section
Case is realized:
The sanitary sewage Jing Guo Biological Pretreatment is injected into water pot first, the water intake in tank squeezes into positive infiltration through pump
Membrane module forms influent side circulation after intensified by ultrasonic wave.Water outlet side pump will drive the driving liquid in flow container to squeeze into forward osmosis membrane
Component forms water outlet side circulation after intensified by ultrasonic wave, and since the liquid of forward osmosis membrane two sides is there are permeable pressure head, water can be certainly
The slave influent side of hair enters water outlet side.Mutually successively pipe connects the water inlet tank of the forward osmosis membrane separation system of every level-one, is made by pump
Liquid flowing.The core for driving liquid circulation and concentration systems is multi-effect evaporator, and every grade of evaporator is separated with every grade of forward osmosis membrane
Cascade System uses.Pipe takes back level-one, second level, three-level driving flow container, steam (vapor) outlet to the liquid outlet of three-level evaporator by the road
Pipe connects condenser, the fresh water that steam is as collected after condensing to the cold.
Treatment method can also include:
The supersonic frequency of the wave producer is 20~40kHz, and power is 5~30W.
The intensified by ultrasonic wave system is periodic running, i.e., every operation 15min stops 45min, reciprocation cycle.
The forward osmosis membrane separation system influent side peristaltic pump and uninterrupted operation in water outlet side peristaltic pump 24 hours.It is at different levels
Pump between water inlet tank was run 1 hour every 11 hours.
Level-one is driven the driving liquid in flow container through level-one evaporator by No. two pumps when the Multi-effect evaporator system is run
Inlet squeeze into level-one evaporator, drive liquid after level-one evaporator, steam enters second steam through level-one steam (vapor) outlet
Entrance, remaining liq enter the inlet of secondary evaporimeter through level-one liquid outlet.Pump will be in secondary drive flow container during operation
The liquid outlet pipe of driving liquid and level-one evaporator accesses heating constant-temperature equipment after connecing, then the inlet access through secondary evaporimeter
Secondary evaporimeter.Drive liquid after secondary evaporimeter, steam enters three-level evaporator through second steam outlet.
The operation method of the three-level and multistage forward osmosis membrane separation system is the same as second level forward osmosis membrane separation system；Three-level
And the operation method of multistage evaporator system is the same as secondary evaporimeter system.
Every grade of evaporator is used in series with every grade of forward osmosis membrane separation system in the Multi-effect evaporator system, i.e., multistage
The every level-one driving flow container and the evaporator liquid outlet pipe of every level-one of forward osmosis membrane separation system connect, and it is every through pumping that pipe connects rear-guard hydrodynamic
It was run 1 hour every 11 hours, enters next stage evaporator after squeezing into heating constant-temperature equipment.
Claims (5)
1. utilizing intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system, it is characterised in that: separated including forward osmosis membrane
Partially, intensified by ultrasonic wave part, driving liquid circulation and concentrating part, forward osmosis membrane separate section at least two-stage, every grade of positive infiltration
Permeable membrane separate section include water inlet tank, influent side peristaltic pump and water outlet side peristaltic pump, influent side valve and water outlet side valve, into
Water effluent meter and water outlet side flowmeter, influent side inlet gage, forward osmosis membrane component；Intensified by ultrasonic wave part includes setting
Intensifying device on every grade of forward osmosis membrane component and the generating device being connect with intensifying device；Drive liquid circulation and concentrating part
Divide including driving flow container and the driving tank connected high-efficiency evaporator of liquid, and the number of driving flow container and high-efficiency evaporator and positive infiltration
The series of permeable membrane separate section is equal；
The forward osmosis membrane component is square frame structure, and is provided with forward osmosis membrane in square frame structure, is just being permeated
Ultrasonic wave vibration plate there are five being respectively set on the water inlet side wall and water outlet side wall of membrane module, and five ultrasonic wave vibration plates constitute and strengthen
Device, five ultrasonic wave vibration plates are located at four angles and center of corresponding side wall, four angles on each side wall
Ultrasonic wave vibration plate is connect after connecting respectively with the ultrasonic wave vibration plate of center with generating device, the influent side of forward osmosis membrane component
It is provided with influent side water inlet pipe and influent side outlet pipe on wall, water outlet side water inlet is provided on the water outlet side wall of forward osmosis membrane component
Pipe and water outlet side outlet pipe；
No.1 pump is provided between the water inlet tank of adjacent two-stage, the first interface of every grade of water inlet tank is sequentially connected influent side wriggling
It intakes after pump, influent side valve, influent side flowmeter, influent side inlet gage with the influent side of corresponding forward osmosis membrane component
Pipe connection, the influent side outlet pipe of each forward osmosis membrane component are connected with the second interface of corresponding water inlet tank, each positive infiltration
The water outlet side outlet pipe of membrane module is connected with the lower end interface of corresponding driving flow container, and the upper end interface of flow container is driven to be sequentially connected
It is connected after water outlet side peristaltic pump, water outlet side valve, water outlet side flowmeter with the water outlet side water inlet pipe of corresponding forward osmosis membrane component,
The bottom end of level-one driving flow container connect with the inlet of level-one high-efficiency evaporator and is provided with two on pipeline between the two
Number pump, the bottom end of driving flow container more than secondary drive flow container and second level passes through pipeline respectively and is sequentially connected No. three pumps, first
The inlet of high-efficiency evaporator after heating constant-temperature equipment with respective stages is connect, the first heating constant-temperature equipment also with the height of upper level
The liquid outlet connection of evaporator is imitated, the liquid outlet of the high-efficiency evaporator of final stage passes through upper ends of the pipeline respectively with all driving flow containers
Connection, steam with next stage high-efficiency evaporator after the gas outlet of every grade of high-efficiency evaporator is connect with the second heating constant-temperature equipment
Entrance connection, the gas outlet of the high-efficiency evaporator of final stage is connected with condenser and fresh water collecting device in turn.
2. according to claim 1 utilize intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system, feature exists
In: the forward osmosis membrane separate section has three-level, and corresponding driving flow container and high-efficiency evaporator number are three.
3. a kind of based on the sewage as claimed in claim 2 using intensified by ultrasonic wave multistage forward osmosis membrane advanced sewage treatment system
Deep treatment method, it is characterised in that:
Firstly, the Biological Pretreatment by the sanitary sewage injection level-one water inlet tank Jing Guo Biological Pretreatment, in level-one water inlet tank
Sanitary sewage squeeze into level-one forward osmosis membrane component through influent side peristaltic pump, after intensified by ultrasonic wave, formed influent side circulation；Out
Level-one is driven the driving liquid in flow container to squeeze into forward osmosis membrane component by water side peristaltic pump, after intensified by ultrasonic wave, forms water outlet side
Circulation, since the liquid of forward osmosis membrane two sides is there are permeable pressure head, water spontaneous can enter water outlet side from influent side；No. two pump works
Make and drive the liquid in flow container to squeeze into level-one high-efficiency evaporator through the inlet of level-one high-efficiency evaporator level-one, liquid passes through
After level-one high-efficiency evaporator, steam enters second steam entrance, level-one high-efficiency evaporator through the gas outlet of level-one high-efficiency evaporator
In remaining liq enter the inlet of second level high-efficiency evaporator through the liquid outlet of level-one high-efficiency evaporator, through second level high-efficiency evaporating
After device evaporation, steam enters three-level steam inlet through the gas outlet of second level high-efficiency evaporator, the residue in second level high-efficiency evaporator
Liquid enters the inlet of stage high-effective evaporator, the gas outlet of stage high-effective evaporator through the liquid outlet of second level high-efficiency evaporator
It is sequentially connected condenser and fresh water collecting device；
Secondly, No.1 pump work between level-one water inlet tank and second level water inlet tank and the Biological Pretreatment that level-one is intake in tank
Sanitary sewage is squeezed into second level water inlet tank, and the sanitary sewage for the Biological Pretreatment that second level is intake in tank is wriggled by influent side water inlet
Pump squeezes into second level forward osmosis membrane component, under intensified by ultrasonic wave systemic effect, takes back second level water inlet tank, shape through influent side outlet pipe
It being recycled at influent side, the driving liquid in secondary drive flow container is squeezed into second level forward osmosis membrane component by water outlet side water inlet peristaltic pump,
Under ultrasonic system invigoration effect, secondary drive flow container is taken back through water outlet side outlet pipe pipe, forms water outlet side circulation, secondary drive
No. three pump works of flow container bottom end connection simultaneously connect the liquid outlet pipe of liquid and level-one high-efficiency evaporator in secondary drive flow container
After access the first heating constant-temperature equipment together, then inlet through second level high-efficiency evaporator accesses second level high-efficiency evaporator, steams
Vapour enters stage high-effective evaporator through the gas outlet of second level high-efficiency evaporator, and the remaining liq in second level high-efficiency evaporator is through second level
The liquid outlet of high-efficiency evaporator enters the inlet of stage high-effective evaporator,
Again, the No.1 pump work between second level water inlet tank and three-level water inlet tank and the Biological Pretreatment that second level is intake in tank
Sanitary sewage is squeezed into three-level water inlet tank, and the sanitary sewage of the Biological Pretreatment in three-level water inlet tank is wriggled by influent side water inlet
Pump squeezes into three-level forward osmosis membrane component, under intensified by ultrasonic wave systemic effect, takes back three-level water inlet tank, shape through influent side outlet pipe
It being recycled at influent side, three-level is driven the driving liquid in flow container to squeeze into three-level forward osmosis membrane component by water outlet side water inlet peristaltic pump,
Under intensified by ultrasonic wave systemic effect, three-level driving flow container is taken back through water outlet side outlet pipe pipe, forms water outlet side circulation, three-level driving
Three-level is simultaneously driven the liquid outlet pipe of liquid and second level high-efficiency evaporator in flow container to connect by No. four pump works of flow container bottom end connection
After access to the second thermostat, then inlet through three-level evaporator accesses three-level evaporator；
Finally, the liquid outlet of stage high-effective evaporator by highly concentrated liquid pass through respectively pipeline take back to level-one driving flow container,
Secondary drive flow container and three-level drive flow container, and the gas outlet of stage high-effective evaporator is sequentially connected condenser and fresh water collecting device
Complete the collection of fresh water.
4. a kind of advanced treatment method for sewage water according to claim 3, it is characterised in that: intensified by ultrasonic wave part is interval
Formula operation, i.e., every operation 15min stop 45min, reciprocation cycle.
5. a kind of advanced treatment method for sewage water according to claim 3, it is characterised in that: the No.1 between water inlet tanks at different levels
Pump was successively run 1 hour every 11 hours；No. two pumps, No. three pumps, No. four pumps of driving flow container bottom ends at different levels connection are also successively
It was run 1 hour every 11 hours.
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| CN102276113A (en) * | 2011-07-08 | 2011-12-14 | 国家海洋局天津海水淡化与综合利用研究所 | Combined fresh water increment method of forward osmosis membrane bioreactor / reverse osmosis |
| CN102689939A (en) * | 2012-06-11 | 2012-09-26 | 哈尔滨工程大学 | Device and method for treating vessel ballast water and nondegradable organic wastewater by utilizing ultrasonic intensification |
| CN105712560A (en) * | 2016-04-13 | 2016-06-29 | 北京新源国能科技集团股份有限公司 | Device and method for treating high-salinity wastewater with forward osmosis technique |
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| US9524483B2 (en) * | 2011-11-23 | 2016-12-20 | Advanced Aqua Group | Water conversion system |
| US9221694B1 (en) * | 2014-10-22 | 2015-12-29 | Gradiant Corporation | Selective scaling in desalination water treatment systems and associated methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102276113A (en) * | 2011-07-08 | 2011-12-14 | 国家海洋局天津海水淡化与综合利用研究所 | Combined fresh water increment method of forward osmosis membrane bioreactor / reverse osmosis |
| CN102689939A (en) * | 2012-06-11 | 2012-09-26 | 哈尔滨工程大学 | Device and method for treating vessel ballast water and nondegradable organic wastewater by utilizing ultrasonic intensification |
| CN105712560A (en) * | 2016-04-13 | 2016-06-29 | 北京新源国能科技集团股份有限公司 | Device and method for treating high-salinity wastewater with forward osmosis technique |
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