KR20190055578A - Portable membrane distillation water treatment apparatus and method thereof - Google Patents

Abstract

The present invention relates to a movable membrane evaporation water treatment apparatus and a water treatment method using the same. The movable membrane evaporation water treatment apparatus of the present invention comprises: a to-be-treated water tank (40) for storing to-be-treated water supplied from the outside; a to-be-treated water pump (43) connected to the to-be-treated water tank (40) to circulate the to-be-treated water; an MD module for treating the to-be-treated water supplied from the to-be-treated tank (40) by the to-be-treated water pump (43); a produced water tank (50) connected to the MD module to store produced water supplied from the MD module; a produced water pump (53) connected to the produced water tank (50) to circulate the producted water; a sensor module installed at least one side of the to-be-treated water tank (40) or the produced water tank (50); an electronic control unit (80) for controlling the to-be-treated water pump (43), the produced water pump (53), and the sensor module; and a base frame (30). The to-be-treated water tank (40), the to-be-treated water pump (43), the MD module, the producted water tank (50), the produced water pump (53), the sensor module, and the electronic control unit (80) are movably installed in the base frame (30). According to the present invention, an installation environment can be tested prior to the actual plant installation, thereby installing an optimized plant through a result thereof.

Description

[0001] The present invention relates to a portable membrane distillation water treatment apparatus and method,

The present invention relates to a membrane evaporation water treatment apparatus, and more particularly, to a membrane evaporation water treatment apparatus configured to be movable so that a pre-test can be carried out in the field, and a method of performing water treatment using the membrane evaporation water treatment apparatus.

Membrane evaporation technology is a process technology for separating water from raw water into pure steam using a porous membrane having a hydrophobic surface.

The raw water treated by the membrane evaporation method comes into contact with one side of the separation membrane, but the raw water is not permeated into the pores of the separation membrane due to the surface tension generated due to the high hydrophobicity of the separation membrane surface. As a result, water can not permeate and only steam is allowed to pass through the separation membrane to produce fresh water from the steam.

The reason for the mass transfer in the membrane evaporation process is due to the temperature difference formed between the raw water at a high temperature and the filtered water at a low temperature at the boundary of the membrane and the difference in the vapor pressure of the water formed due to the temperature difference, And it becomes a driving force to move from the raw water to the filtrate water.

The membrane evaporation method can be classified into direct contact membrane distillation (DCMD), air gap membrane distillation (AGMD) method and the like, depending on the method applied to the filtration water side in order to generate the vapor pressure gradient, , Sweep Gas Membrane Distillation (SGMD), and Vacuum Membrane Distillation (VMD).

This membrane evaporation method is a technology to treat the target water through phase change. It has a non-volatile pollutant removal rate close to 100%, operates at a lower pressure than the reverse osmosis method, and has a high resistance to membrane contamination. There is an advantage to be able to do.

Equipment using this membrane evaporation method should be provided for each site situation. This is because the nature of the untreated gas-generating wastewater differs from site to site, and therefore plant facilities are required for each site situation. However, it is difficult to accurately measure the site environment before the actual membrane evaporation method is tested, and there is a problem in that it requires a lot of cost and process to change it once the plant is installed.

Korean Patent Publication No. 10-2017-0008871

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to provide an apparatus and a method for accurately diagnosing a site environment using a mobile membrane evaporation apparatus before actually applying a plant facility using a membrane evaporation method .

According to an aspect of the present invention for achieving the above-mentioned object, the present invention provides a water treatment system comprising: a water treatment tank for storing water to be treated supplied from the outside; A process water pump, an MD module for processing the for-treatment water supplied from the to-be-treated water tank by the for-treatment water pump, a production water tank connected to the MD module for storing production water supplied from the MD module, A production water pump connected to the production water tank for circulating the production water, a sensor module installed at least at one side of the for-treatment water tank or the production water tank, And a base frame to which the to-be-treated water tank, the water to be treated, the MD module, the production water tank, the production water pump, the sensor module, and the electronic control unit are installed and movable The.

The to-be-treated water tank and the MD module form one circulation path, and the MD module and the production water pump also form independent circulation paths.

The raw water supply means includes a movable raw water supply frame and a raw water tank installed in the raw water supply frame. The raw water tank is connected to the raw water tank, Supply.

The raw water supply means is provided with a raw water supply pump to supply the raw water stored in the raw water tank to the water treatment tank.

The sensor module includes at least one of a flow meter, a pressure gauge, a water quality sensor, and a temperature sensor.

The electronic control unit stores a value measured by the sensor module, transmits the measured value to the outside, and compares the measured value with a previously stored measured value.

Wherein either one of the base frame or the raw water supply frame is provided with a valve control means controlled by the electronic control unit and the valve control means controls a valve for selectively discharging the produced water to the outside.

According to another aspect of the present invention, there is provided a method of measuring a filtration amount, comprising the steps of measuring a filtration amount using a mobile membrane evaporation water treatment apparatus, a measurement value storage step of storing measured filtration amount and water quality data, Calculating a required water treatment scale and manpower data from the stored data if the compared value is within an error range; and storing the data derived through the calculation step.

The electronic control unit determines whether to supply new raw water from the raw water supply tank of the raw water supply means to the untreated water tank according to the concentration degree of the untreated water stored in the untreated water tank via the MD module.

When an abnormality of the device is found from the value transmitted through the sensor module, the electronic control unit generates an alarm signal.

The mobile membrane evaporation water treatment apparatus and water treatment method using the same according to the present invention as described above have the following effects.

The installation environment can be tested using the present invention prior to actual plant installation, and the optimized plant can be installed through the result. Therefore, not only the water treatment efficiency can be increased, but also the unnecessary costs incurred in actual plant installation can be minimized.

Particularly, the present invention can freely install the membrane evaporation water treatment apparatus in various places by using the movable base frame and the raw water supply frame, thereby increasing the test degree of freedom.

According to the present invention, the additional raw water can be supplied using the raw water supply means detachably coupled to the mobile membrane evaporation water treatment apparatus, thereby supplying additional raw water according to the degree of concentration of the for-treatment water stored in the for- Various tests can be performed close to each other, thereby improving the accuracy of the test.

In addition, the present invention enables automatic operation according to the initial set value through the electronic control unit, and water quality analysis data of the for-treatment water and the production water are also collected in real time, thereby minimizing labor mobilization during the test.

The collected data can be checked in real time through the electronic control unit which is a part of the device. The collected data can be confirmed at the desired place through the communication network. If an error occurs during operation, an alarm signal is generated and an immediate response have.

Further, the mobile membrane evaporation water treatment apparatus can be automatically cleaned based on the data confirmed through the electronic control unit. The electronic control unit of the present invention can automatically determine the state of the separation membrane and control the membrane evaporation water treatment apparatus so as to meet the respective conditions so that necessary membrane cleaning and film wet prevention can be automatically performed.

1 is a perspective view showing an embodiment of a mobile membrane evaporation water treatment apparatus according to the present invention.
FIG. 2 is a block diagram schematically illustrating the embodiment of FIG. 1; FIG.
3 is a flowchart sequentially showing a process of water treatment using a mobile membrane evaporation water treatment apparatus according to the present invention.
FIG. 4 is a flow chart sequentially showing a process of performing film cleaning and wetting prevention in the mobile membrane evaporation water treatment apparatus according to the present invention. FIG.
FIG. 5 is a flowchart sequentially showing a process of performing physical / chemical film cleaning of a mobile membrane evaporation water treatment apparatus according to the present invention. FIG.
6 is a flowchart sequentially illustrating a process of preventing wetting of the mobile membrane evaporation water treatment apparatus according to the present invention.
FIG. 7 is a flowchart sequentially showing a process of physical film cleaning / wetting prevention or chemical film cleaning / wetting prevention in the mobile membrane evaporation water treatment apparatus according to the present invention. FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

Membrane distillation according to the present invention is a process in which a phase change occurs on the surface of a hydrophobic polymer membrane and condensation and separation are performed through permeation of vapor through the surface micropores of the membrane. As a result, nonvolatile matter or a substance having relatively low volatility It can be used in a desalting process for separating and removing organic substances having high volatility in an aqueous solution.

The present invention utilizes direct contact membrane distillation (DCMD). More specifically, the untreated water heated by the heater in the for-treatment water tank 40 to be described later flows into the supply side of the MD module 60, and the separation target material flows through the surface micropore of the separation membrane of the MD module 60, Phase and is diffused and permeated into the pores. At this time, cold water is circulated in the production water tank 50 by the production water pump 53, and the permeated steam is directly contacted and condensed and separated, and a good permeation flux can be secured in this process.

Referring to the structure according to the present invention, as shown in FIG. 1, a base frame 30 forms a skeleton thereof. The base frame 30 is configured to be movable, and has a wheel 35 at a lower portion thereof. The whole of the base frame 30 can be easily moved through the wheel 35. A plurality of components are installed on the base frame 30 and moved together with the base frame 30.

The base frame 30 is provided with a water treatment tank 40. The untreated water tank 40 stores the untreated water supplied from the outside. The untreated water stored in the untreated water tank 40 is supplied to the MD module 60 to be described later by the untreated water pump 43 and the separation target material is separated through the phase conversion as described above.

A heater 45 (see FIG. 2) is built in or outside the water tank 40 to raise the temperature of the water to be treated. The temperature of the water to be treated is increased by the heater 45 and conversely the cooler 70 is connected to the production water tank 50 to lower the temperature of the produced water. Reference numeral 73 denotes a circulating pump.

The for-treatment water tank 40 and the MD module 60 form one circulation path. Therefore, the untreated water to be treated can not be supplied from the untreated water tank 40 to the MD module 60 but can be circulated. In this process, if the concentration of the water to be treated stored in the water treatment tank 40 becomes higher than a certain level, additional raw water may be supplied from the raw water supply means described below.

On the other hand, in the water treatment tank 40, there is a production water tank 50 on the basis of the MD module 60. In the production water tank 50, the produced water processed through the MD module 60 is stored. Of course, as shown in FIG. 2, the production water tank 50 has a circulation path independent of the MD module 60, so that the production number of the production water tank 50 can be circulated to the MD module 60. At this time, a production water pump 53 is provided between the MD module 60 and the production water tank 50, so that the production water can be circulated.

At this time, at least one of the untreated water tank 40 and the production water tank 50 is provided with a sensor module. The sensor module includes at least one of a flow meter, a pressure gauge, a water quality sensor, and a temperature sensor, and measures the state of the water to be treated and the water produced. Of course, these sensor modules may be installed in both the treated tank and the production water tank 50, or may be installed in a connecting pipe connecting them.

The for-treatment water pump 43, the production water pump 53, and the sensor module are controlled by the electronic control unit 80. [ The electronic control unit 80 can not only control the pumps and the sensor module but also calculate the measured value of the sensor module and store the result of the calculation. In addition, the electronic control unit 80 may transmit the stored measurement values and calculation values to the outside through a communication module. In this embodiment, the electronic control unit 80 includes a display, and such measured values may be displayed externally.

A raw water supply means is provided at one side of the base frame 30. The raw water supply means includes a raw water supply frame 10 and a raw water tank installed in the raw water supply frame 10. The raw water tank is connected to the raw water tank 40 to supply raw water. The raw water supply means determines whether or not to supply new raw water to the WTBT 40 according to the degree of concentration of the WTBT stored in the WTBT 40. This control is performed by the electronic control unit 80 can do. The raw water supply frame 10 is also provided with a wheel 15 so as to be movable. In this embodiment, the raw water supply frame 10 is freely movable because it is constructed independently of the base frame 30. Of course, the raw water supply frame 10 may be integral with the base frame 30.

A valve control means 28 controlled by the electronic control unit 80 is provided at either side of the base frame 30 or the raw water supply frame 10. The valve control means 28 controls the valves V1 and V2 for selectively discharging the produced water to the outside and is discharged through the valves V1 and V2 controlled by the valve control means 28 The flux J of the final production number can be calculated. In this embodiment, the valve control means 28 is constituted by an air compressor.

Next, a process of testing the water treatment using the mobile membrane evaporation water treatment apparatus according to the present invention will be described.

First, the filtration amount is measured using the above-described portable membrane evaporation water treatment apparatus (S10). Here, the filtrate amount may be the production amount or the filtration amount of the final production water. The measurement of the amount of filtration can be done by the sensor module.

The measured filtration amount is transmitted to the electronic control unit 80, and the electronic control unit 80 stores the measured filtration amount and water quality data (S20). If this process is repeated, it is possible to compare the previously stored data with the later stored data (S30). The electronic controller 80 compares the stored data with pre-stored data (S40), and if the compared value is within the error range, the electronic controller 80 stores the value. This is because, if a measurement result is obtained in an environment in which a mobile membrane evaporation water treatment apparatus is installed, the installation environment can be accurately known.

(S50). Of course, a result storage step of storing the data derived through the calculation step is followed (S60). In other words, prior to actual plant installation, And the installation environment can be tested using the result, and the optimized plant can be installed through the result.

At this time, the electronic control unit 80 controls the supply of the water to be treated from the raw water supply tank 20 of the raw water supply means to the water treatment tank (not shown) through the MD module 60 according to the concentration degree of the water to be treated stored in the water treatment tank 40 40 to determine whether to supply new raw water. That is, the additional raw water can be supplied using the raw water supply means detachably coupled to the mobile membrane evaporation water treatment apparatus, thereby supplying additional raw water according to the degree of concentration of the for-treatment water stored in the for- Tests can be done to improve test accuracy. Reference numeral 23 denotes a raw water supply pump, and reference numeral 25 denotes a microfiltration membrane. The microfiltration membrane 25 is for removal of TSS (particulate matter) through pretreatment in order to fully activate the membrane evaporation method, and a simple microfiltration membrane system (pretreatment) can be provided through the microfiltration membrane 25.

Meanwhile, when an abnormality of the device is found from the value transmitted through the sensor module, the electronic control unit 80 generates an alarm signal. If an error occurs in the device, an alarm signal is generated and an immediate response is possible.

In addition, the above-described process can be automatically operated according to the initial set value through the electronic control unit (80). In the process, the water quality analysis data of the treated water and the production water are also collected in real time, so that the labor mobilization can be minimized during the test.

On the other hand, the present invention can also provide a membrane cleaning and anti-wetting function. The membrane cleaning means washing the membrane, and the wetting membrane means to improve membrane wetting of the membrane. If the membrane is contaminated, membrane permeation flux (J) is reduced and the productivity is lowered. Therefore, it is necessary to clean the membrane. If membrane wetting phenomenon occurs, water will be caught in the pores of the separation membrane, . Therefore, a method for solving such a problem will be described below.

FIG. 4 shows a process of performing membrane cleaning and wetting prevention in the mobile membrane evaporation water treatment apparatus according to the present invention.

Accordingly, the predetermined time intervals (t _s) can be produced can be produced and the flux (J) with respect to the water quality (C _p) a After repeatedly measured, and if the production number of the flux (J) or produced water quality (C _p) Is less than the set reference flux (J _t ) or the reference water quality (C _pt ), membrane cleaning or membrane wetting prevention is performed. This process is shown in Table 1 below.

Flux Production water quality Processing method One J> J _t C _p <C _pt Continuous operation (no extra processing) 2 J> J _t C _p ? C _pt Anti-wetting treatment 3 J ≤ J _t C _p <C _pt Membrane cleaning treatment 4 J ≤ J _t C _p ? C _pt Membrane wetting prevention and membrane cleaning treatment

By default, the flux (J) of the number of production must be lower than the reference flux (J _t) should be high, and (J> J _t) than, produce water quality (C _p) is based on water quality _{(C pt). (C p} <C pt ) In other words, it is better to have a higher flux value and lower water quality. (J _t ) is set to 0.9 times of the flux at the beginning of operation, and the reference water quality (C _pt ) is set to be equal to the reference water quality Is set at 1.1 times the production water quality (C _p ) at the beginning of operation, but these standards can be changed as needed.

As shown in the above table, in case 1, these conditions are satisfied, so the operation can be continued without any additional processing. If described with reference to FIG 4, after the operation in the fixed time (t _s) (S100), the measurement process that the required amount (S110) If there is no problem terminate the judgment process, and continues the operation.

On the other hand, if the flux (J) of the produced water is equal to or higher than the reference value as in Case 2, but the water quality (C _p ) of the produced water is higher than the reference value, If the production (J) of the production water is higher than the reference flux (J _t ) and the production amount is maintained but it is judged that the water quality (C _p ) of the production water is deteriorated, it is judged that the membrane wettability of the separation membrane is increased. . The concrete method of preventing film wetting will be described below again. If described with reference to FIG 4, after the operation in the fixed time (t _s) (S100), if it is determined to be untested the measures that process the required amount (S110) process, can produce the flux (J) and the production can measure the quality (C _p). (S120) by comparing the fluxes (J) and a reference flux (J _t) of the number produced (S130) the flux (J) of the number of production is higher, the quality of water can produce (C _p ) Is compared with the reference water quality (C _pt ) (S160), and if it is determined that the water quality (C _p ) of the produced water is worse, membrane wet prevention is performed (S161) C _p) and compare to a (S163) based on water quality (C _pt), and measure (S165), if it can still produce quality (C _p of a) replacing the film when it is determined worse. (S180)

On the other hand, when the water quality (C _p ) of the produced water satisfies the reference water quality (C _pt ) but the flux J of the produced water is lower than the reference flux J _{t as in} Case 3, the membrane washing treatment is performed . It is judged that the production volume of production water has fallen, and it is necessary to increase production again through membrane cleaning. The specific method of membrane cleaning will be described below again. If described with reference to FIG 4, after the operation in the fixed time (t _s) (S100), if it is determined to be untested the measures that process the required amount (S110) process, can produce the flux (J) and the production can measure the quality (C _p). (S120) by comparing the fluxes (J) and a reference flux (J _t) of the number produced (S130) the number of fluxes (J) are further low, the water quality can be produced (C producing _p is compared with the reference water quality (C _pt ) (S140), and the water quality of the produced water (C _p ) is lower than the reference water quality (C _pt ) S151) In this embodiment, membrane physical cleaning is performed. And be replaced by re-measuring the flux (J) of the number of production after a period of time compared to (S153) based on the flux (J _t) and (S155), if still prevented if it is determined the flux (J) of the number of production is worse. ( S180)

Finally, if the flux (J) of the produced water is lower than the reference flux (J _t ) and the produced water quality (C _p ) is lower than the reference water quality (C _pt ) as in Case 4, . If described with reference to FIG 4, after the operation in the fixed time (t _s) (S100), if it is determined to be untested the measures that process the required amount (S110) process, can produce the flux (J) and the production can measure the quality (C _p). (S120) by comparing the fluxes (J) and a reference flux (J _t) of the number produced (S130) the number of fluxes (J) are further low, the water quality can be produced (C producing _p) to be compared to the reference quality (C _pt), (S140) and the water quality of the production numbers (C _p) value is based on water quality (C _pt) subjected to anti When higher than numeric bad water quality is determined simultaneously with the membrane washing membrane wetting (S141) In this embodiment, membrane physical cleaning is performed. Then, after a predetermined time, the flux J of the product water and the water quality C _p of the product water are measured (S142), and the flux J of the product water and the reference flux J _t are compared (S143) If it is determined that the flux (J) of the production water is still worse, the water quality (C _p ) value of the production water and the reference water quality (C _pt ) value are further compared (S145). As a result, if it is determined that the water quality (C _p ) value of the produced water is higher than the reference water quality (C _pt ) value and the quality of the water is bad, this time, chemical cleaning is performed in membrane washing and membrane wetting prevention is performed simultaneously (S147). On the other hand, when the above production can be water (C _p) of the value and the reference quality (C _pt) The quality of the figures can be produced in a further comparison a step (S145) (C _p) levels of water lower than the value based on water quality (C _pt) Finally, the flux J of the produced water is measured (S148) and compared with the reference flux J _t again (S150). As a result, if the flux J of the produced water is still lower than the reference flux J _t , the membrane is replaced (S180). Otherwise, the operation is performed again for the set time (S100).

Meanwhile, FIG. 5 shows a process of performing physical / chemical film cleaning of the mobile membrane evaporation water treatment apparatus according to the present invention. As described above, the raw water supply pump 32 is stopped (S200), and after the water to be treated 43 and the water to be treated 45 are stopped, the concentrated water in the water to be treated 40 Discharge and prepare for membrane cleaning. Subsequently, the cleaning solution is transferred to the treatment water tank 40 in the cleaning solution tank 90 by using the cleaning solution supply pump 93 (S220)

Next, the cooler 70 is stopped and the produced water is heated using the production water heater 55 (S230). And it performed the target number of pump 43, and the movable operation for a set time (t _c1) at a set temperature (T _c1) (S240). In this case, the temperature of the produced water is higher than the temperature of the water to be treated, and thus the direction of permeation of the steam is reversed. In the process, the contaminants attached to the membrane can be physically removed.

Then, the production water heater 55 is stopped and the cooler 70 is operated again (S250). Then, the to-be-treated water pump 43 is stopped and the washing solution in the to-be-treated water tank 40 is discharged (S260). This completes the physical / chemical film cleaning. Here, the physical membrane cleaning consists of reversing the direction of permeation of the vapor, and the chemical membrane cleaning is carried out through the cleaning solution. The cleaning solution may be distilled water containing acid or base chemicals.

Finally, the raw water supply pump 23 is processed, the water to be treated is supplied to the water treatment tank 40, the water to be treated 45 and the water to be treated 43 are operated, do.

Otherwise, except for the process of transferring the cleaning solution to the treatment water tank 40 in the cleaning solution tank 90, if the temperature of the produced water is raised to reverse only the direction of vapor transmission, only the physical film cleaning is performed .

Meanwhile, FIG. 6 sequentially shows a process of preventing film wetting according to the present invention. In this case, the production water pump 53 is first stopped (S300) and the production water stops moving to the production water pump 50. Then, the blower 57 is operated and at the same time, the air cleaning valve 47 is adjusted to adjust the air pressure (S310). When air is injected through the produced water circulation pipe by the blower 57 and the air pressure supplied by the air cleaning valve 47 is raised above the liquid permeation pressure of the separation membrane, water present in the membrane pores is physically / .

In this process, air is heated using the water-to-be-treated water heater 45 (S320). The air previously supplied to the blower 57 can be heated to the temperature equal to or higher than the water to be treated through the water to be treated 45. The air thus heated can be dried by passing through the separation membrane at a pressure higher than the liquid permeation pressure by the air cleaning valve 47, and film wet prevention is achieved. This process is performed for the set time t _c2 at the set temperature T _c2 at step S330. When the film wet prevention is completed, the air cleaning valve 47 is opened to the maximum and the blower 57 is stopped ).

Meanwhile, FIG. 7 sequentially shows a process of preventing wetting of the mobile membrane evaporation water treatment apparatus according to the present invention together with physical / chemical membrane cleaning. This is for simultaneously performing the film cleaning and the film wet prevention described in Figs. 5 and 6 above. The raw water supply pump 23 is stopped (S400), and the for-treatment water pump 43 and the for-treatment water heater 45 are also stopped. At the same time, the concentrated water in the water treatment tank 40 is discharged (S410).

Subsequently, the cleaning solution is supplied into the cleaning solution tank 90 using the cleaning solution supply pump 93 (S420), and the production water pump 53 is stopped to stop the production water circulation. Then, the blower 57 is operated and at the same time, the air cleaning valve 47 is adjusted to adjust the air pressure (S440). When air is introduced through the produced water circulation pipe by the blower 57 and the supplied air pressure is raised by the air cleaning valve 47 to the liquid permeation pressure or more of the separation membrane, the water present in the membrane pores is physically / .

In this process, air is heated using the water-to-be-treated water heater 45 (S450). The air previously supplied to the blower 57 can be heated to the temperature equal to or higher than the water to be treated through the water to be treated 45. The air thus heated can be dried by passing through the separation membrane at a pressure higher than the liquid permeation pressure by the air cleaning valve 47, and film wet prevention is achieved. When this process is a set temperature (T _c3) made during the set time (t _c3) in being (S460), film-wetting prevention is complete, opening the for air cleaning valve 47 to the maximum and stop the blower (57) (S470 ).

Then, the water to be treated 43 is stopped and the washing solution in the water tank 40 is drained (S480). This completes the physical / chemical membrane cleaning. Here, the physical membrane cleaning consists of reversing the direction of permeation of the vapor, and the chemical membrane cleaning is carried out through the cleaning solution. The cleaning solution may be distilled water containing acid or base chemicals.

Finally, the raw water supply pump 23 is processed, the water to be treated is supplied to the water treatment tank 40, the water to be treated 45 and the water to be treated 43 are operated, (S500).

As described above, according to the present invention, it is possible to automatically determine the state of the separation membrane, and to control the membrane evaporation water treatment apparatus in accordance with each state to automatically perform membrane cleaning and film wet prevention.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: raw water supply frame 15, 35: wheel
20: raw water supply tank 23: raw water supply pump
30: base frame 40: untreated water tank
50: Production water tank 60: MD module
70: cooler 80: electronic control unit

Claims (16)

An inflow water tank for storing raw water supplied from the outside,
A microfiltration membrane for pretreating the supplied raw water to prepare for-treatment water to be treated water tank,
A to-be-treated water pump connected to the for-treatment water tank to circulate the for-treatment water,
An MD module that processes the for-treatment water supplied from the untreated water tank by the untreated water pump,
A production water tank connected to the MD module to store production water supplied from the MD module,
A production water pump connected to the production water tank for circulating the production water,
A sensor module installed on at least one of the for-treatment water tank and the production water tank,
An electronic control unit for controlling the for-treatment water pump, the production water pump and the sensor module,
And a base frame to which the to-be-treated water tank, the water to be treated, the MD module, the production water tank, the production water pump, the sensor module, and the electronic control unit are installed and movable.
The water treatment system according to claim 1, further comprising: a production water heater installed between the production water tank and the MD module,
A blower connected to the production water heater and injecting air,
Further comprising an air cleaning valve installed in the production water outlet of the MD module.

The mobile membrane evaporation water treatment system according to claim 1, wherein the microfiltration membrane is made of a material that can be used at a high temperature, and can be treated as it is without cooling when the raw water enters a high temperature.
The mobile membrane evaporation water treatment system according to claim 1, wherein the to-be-treated water tank and the MD module form one circulation path, and the MD module and the production water pump also form independent circulation paths.
5. The water treatment system according to claim 4, wherein raw water supply means is provided at one side of the base frame, and the raw water supply means includes a raw water tank installed in a movable water supply frame and a raw water supply frame, A portable membrane evaporation water treatment device connected to a tank to supply raw water.
6. The moving membrane evaporation water treatment system according to claim 5, wherein the raw water supply means is provided with a raw water supply pump to supply the raw water stored in the raw water tank to the water treatment tank.
The mobile membrane evaporation water treatment system according to claim 1, wherein the sensor module comprises at least one of a flow meter, a pressure gauge, a water quality sensor or a temperature sensor.
The mobile membrane evaporation water treatment system according to claim 1, wherein the electronic controller stores a value measured by the sensor module, transmits the measured value to the outside, and compares the measured value with a previously stored measured value.
6. The apparatus according to claim 5, wherein either one of the base frame or the raw water supply frame is provided with valve control means controlled by the electronic control unit, and the valve control means controls the valve for selectively discharging the produced water to the outside A movable membrane evaporation water treatment device.
9. A method of manufacturing an apparatus for measuring the amount of filtration using a moving membrane evaporation water treatment apparatus according to any one of claims 1 to 9,
A measurement value storage step of storing the measured filtrate amount and water quality data,
Comparing the stored data with pre-stored data;
An arithmetic step of deriving a necessary water treatment scale and manpower data from the stored data if the compared value is within an error range,
And a result storing step of storing the data derived through the calculating step.
The electronic control unit according to claim 10, wherein the electronic control unit determines whether to supply new raw water from the raw water supply tank of the raw water supply means to the water treatment tank according to the degree of concentration of the water to be treated stored in the water tank through the MD module A water treatment method using a mobile membrane evaporation water treatment apparatus.
The water treatment method according to claim 10, wherein the electronic control unit generates an alarm signal when an abnormality of the apparatus is detected from the value transmitted through the sensor module.
The electronic control unit according to claim 10, wherein the electronic control unit judges a state of requiring membrane cleaning or membrane wetting of the separation membrane using the measured filtrate amount and water quality data, and at least one of physical cleaning, chemical cleaning, In which the evaporation of water is carried out simultaneously or sequentially.
14. The method of claim 13, wherein the physical cleaning of the separation membrane physically removes contaminants adhered to the separation membrane by raising the temperature of the product water higher than the water to be treated to reverse the direction of vapor transmission, Water treatment method.
14. The method according to claim 13, wherein the chemical cleaning of the separation membrane is performed by changing the water to be treated into distilled water containing acid or basic chemicals for membrane washing, raising the temperature of the produced water to a higher value than the water to be treated, And removing the contaminants attached to the membrane physically and chemically.
14. The method as claimed in claim 13, wherein air is injected through a production water circulation pipe by using a blower, the temperature of the air is raised to a temperature equal to or higher than the water to be treated by using a production water heater, Wherein the water in the pores of the separation membrane is removed by physical or thermal action by increasing the pressure of the air by increasing the pressure of the air above the liquid permeation pressure of the separation membrane.

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