KR101612230B1 - Device for continuously measuring FI and method for measuring FI - Google Patents

Abstract

According to the present invention, provided are a measuring apparatus of a membrane fouling index and a measuring method using the same. The measuring apparatus comprises: a filter membrane cell accommodating a filter membrane to filter raw water on the inner part, thereby filtering the raw water as water to be treated; a calculation and control part measuring a time (T_0) required for filtering all the raw water as the first raw water by the filter membrane at predetermined pressure and flow rate, a predetermined time (T) required for supplementally filtering the raw water after the raw water is filtered as the first raw water, and a time (T_1) required for filtering all the raw water as the second raw water by the filter membrane at the predetermined pressure and flow rate, and calculating the fouling index of the filter membrane on the basis of the measured times (T_0, T, T_1); and a washing part to wash the filter membrane to be reusable. The filter membrane is an inorganic membrane. Accordingly, the progress of a membrane fouling measuring step is not intermittent according to the replacement of the filter membrane, and the membrane fouling index can be automatically and continuously measured according to predetermined period and time. Furthermore, data on the membrane fouling index measured continuously can be monitored remotely in real time. Therefore, the data on the membrane fouling index can be effectively managed with respect to a change in the raw feed water quality of each regional water treatment plant equipped with the measuring apparatus of the membrane fouling index.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a device for continuously measuring film contamination,

The present invention relates to a film contamination index measuring apparatus, and more particularly, to a film contamination index measuring apparatus and method capable of continuously and automatically measuring film contamination indexes and remotely and in real time managing measured film contamination indexes.

The pollution index (or fouling index) (FI) is an indicator of the fouling of the filtration membrane used in the water treatment process. The pollution index (or fouling index) It is exponentially calculated by measuring the time required to pass the measurement object water through a membrane filter and reject it.

That is, the pollution index is actually synonymous with the membrane pollution index. Various indexes can be used as the film contamination index, but the most widely used film contamination index is called the SDI (Silt Density Index). Hereinafter, the SDI will be referred to as a contamination index.

SDI is used as a general pollution index in the field of water treatment plant based on the membrane filtration process. All of these are called pollution indexes and can be expressed by the following equation.

T ₀ : time (sec) required to filter primary raw water at a predetermined flow rate (typically 500 mL) under pressure of 206 kPa using a membrane filter of 0.45 μm;

T ₁ : Thereafter, the same flow rate of the first raw water (2), which is the same as the first raw water, is continuously filtered after a predetermined time T (typically 15 minutes, in this case, expressed as SDI ₁₅ ) Time (seconds) required to re-filter the cold water

That is, according to the conventional method for measuring the contamination index represented by SDI ₁₅ , the time (T ₀ ) required for filtering 500 mL of raw water is measured (step 1), additional filtration is performed for 15 minutes (step 2) In order to confirm the degree of pollution in step 2, the time (T ₁ ) required to filter 500 mL of raw water was measured in the same manner as in step ₁ (step 3), and the pollution index was calculated according to the above equation . Here, it goes without saying that the amount of raw water in the first and third steps or the filtration execution time in the two steps may be changed

On the other hand, the above contamination index equation is theoretically based on the filtration equation in the constant pressure filtration of an incompressible cake. Evaluation of clogging due to FI value is widely used for evaluation of pre-treatment water quality such as NF (NF) and Reverse Osmosis (RO). In nanofiltration and reverse osmosis, it is necessary to remove contaminants as much as possible from pretreatment because the suspended substances in the raw water adhere to the membrane surface and cause fouling. Because pretreated water is a clean water that can not be accurately assessed by turbidity, it has been devised as a way to index and quantify suspended solids in water in relatively simple measurements. In general, the raw water FI value of the nanofiltration membrane and the reverse osmosis membrane is about 1.5 to 3.0 in the case of microfiltration (MF) and ultrafiltration (UF) pretreatment, dual media filtration and sand filtration ) Is about 3 ~ 5 in case of pretreatment of filter media. In addition, an organic membrane made of a polymer material is usually used for measuring the FI value, and a membrane filter having a diameter of 47 mm is used.

Generally, it is judged that the pollution is not severe if the value measured according to the FI measurement method in the nano filtration method and the reverse osmosis method, that is, the FI value is less than 3, and when it is 5 or more, It is necessary to strengthen the pretreatment process.

As a conventional apparatus for measuring FI, such an FI measuring apparatus as shown in Figs. 1 and 2 is configured as a Kit so as to be portable or the like.

A generally used FI measuring device is a device for receiving a raw water to be measured in a raw water supply part 10 and supplying it to a filtration membrane 21 inside a filtration membrane cell 20 at a pressure and a flow rate set by using a pump P and a valve V, To measure the membrane fouling index. After the measurement, the used filtration membrane 21 is discarded and replaced with another filtration membrane 21 'to perform a subsequent measurement.

Therefore, in the conventional membrane contamination index measuring apparatus, the membrane contamination index can not be continuously and automatically measured due to the replacement of the filtration membrane, and since the filtration membrane is considerably expensive, It is common to carry out two measurements. Therefore, there is a problem that it is difficult to monitor water quality information by monitoring a substantial change in the membrane pollution index due to the fluctuation of the water quality of the influent source water, and manage the water quality information on a short cycle basis.

Hereinafter, a prior art related to such a film contamination measuring apparatus will be described.

The inventive technologies disclosed in U.S. Patent Nos. 5,198,116 and 6,306,291, Japanese Patent Laid-Open Nos. 2004-003170 and 2012-213676, Chinese Patent Laid-Open Nos. 101706407 and 102519550 all disclose SDI and Modified Fouling Index (MFI) It is devised to reduce the required area of the existing membrane filter for the apparatus and method, to modify the measurement order, to efficiently improve the measurement position, or to propose a process for the measurement experiment to improve the conventional technique have.

Korean Patent No. 1006901 discloses a membrane contamination index measuring apparatus which comprises a plurality of filter membranes having different pore sizes in parallel to each other and thereby quantify various types of membrane contamination present in the raw water, Lt; / RTI >

Korean Patent Laid-Open Publication No. 2013-0081436 and European Patent Publication No. EP 2803398 A1 disclose a membrane contamination measuring apparatus in which a plurality of filtration membranes of different sizes are arranged in series to improve the accuracy of membrane contamination quantification .

However, the apparatus and method for measuring and measuring membrane contamination disclosed in the above-mentioned prior art documents are more effective than the conventional measuring apparatus for quantification and improvement of accuracy of membrane contamination index measurements, but all of them are non-continuous batch-based intermittent membrane contamination As a method for measuring the index, it is also difficult to perform continuous measurement and management thereof, since it is necessary to replace the filtration membrane after measurement, and there is a problem that the cost consumed in replacement is much higher because a plurality of filtration membranes are used for accuracy.

US 5,198,116 B1 US 6,306,291 B1 JP 2004-003170 A JP 2012-213676 A CN 101706407 A CN 102519550 A KR 1006901 B1 KR 2013-0081436 A EP 2803398 A1

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a membrane filtration system capable of automatically measuring continuous membrane fouling index continuously, And to provide a film contamination measuring device and a measuring method.

In order to achieve the above-mentioned object, an embodiment of the present invention is a membrane filtration apparatus comprising a filtration membrane cell (200) in which raw water is treated as treated water by accommodating therein a filtration membrane (210) ; A time (T ₀ ) required for the raw water to be subjected to the membrane filtration process in the filtration membrane 210 at a predetermined flow rate and pressure as the primary raw water, a time for filtration of the raw water after the membrane filtration as the primary raw water (T ₁ ) required for membrane filtration in the filtration membrane (210) at the preset flow rate (T 2) and the predetermined time (T) as the secondary source water, (400) for calculating a film contamination index of the filtration membrane (210) based on the permeation rate (T ₀ , T, T ₁ ) of the filtration membrane (210); And cleaning of the filtration film 210 so that the filtration film 210 can be reused after the predetermined time (T ₀ , T, T ₁ ) and the membrane contamination index calculation time of the calculation and control unit 400 And a filtration membrane (210) is an inorganic membrane. The apparatus for measuring a membrane contamination index according to any one of claims 1 to 5, wherein the filtration membrane (210) is an inorganic membrane.

In addition, the filtration membrane 210 is preferably a ceramic membrane or a corrosion resistant metal membrane.

In addition, the cleaning part 600 preferably includes a cleaning agent supply part 610 for supplying a cleaning agent to the filtration membrane cell 200.

The cleaning part 600 preferably includes a steam supplying part 620 for supplying cleaning steam to the filtration membrane cell 200.

The treatment water stored in the treatment water storage part 300 may be supplied to the filtration membrane cell 200 to remove the treatment water from the filtration membrane 210, It is preferable that backwashing is performed.

The process water storage unit 300 further includes a process water storage unit 300 storing the filtered process water. The process water stored in the process water storage unit 300 is supplied to the steam supply unit 620 to generate steam, It is preferable that the steam is supplied to the filtration membrane cell 200 in the backwash direction.

Further, it is preferable to further include a transmission unit 500 connected to the calculation and control unit 400.

In addition, the transmitter 500 preferably transmits the film contamination index of the filtration membrane 210 recorded in the calculation and control unit in a predetermined real-time remote monitoring system.

In addition, it is preferable that the recording of the membrane filtration index of the raw water and the filtration of the filtration membrane 210 are continuously performed according to a predetermined number of times.

In order to accomplish the above object, another embodiment of the present invention is a method for filtering a primary raw water (T ₀ ), which is a time required for membrane filtration by the filtration membrane (210) at a predetermined pressure and flow rate, The measured step; (b) after the step (a), filtering the raw water by a predetermined time (T); (c) measuring the time (T ₁ ) required for the secondary raw water to be filtered by the filtration membrane (210) at a predetermined pressure and flow rate in the step (a); (d) calculating and recording a film contamination index based on the respective measured times (T ₀ , T, T ₁ ); And (e) cleaning the filtration membrane (210) so that the filtration membrane (210) is reused after the filtration membrane (210) is contaminated during the steps (a) ) Is an inorganic film, and the membrane contamination index of the filtration membrane (210) is continuously calculated and recorded by repeating the steps (a) to (e) by a preset number of times .

It is preferable that the cleaning in the step (e) is at least one of a reverse cleaning, a chemical cleaning, and a cleaning by steam supply.

In addition, it is preferable that the step (e) further comprises: (f) transmitting the film contamination index data information of the continuously recorded filtration film 210 to the predetermined real-time remote monitoring system.

In the step (f), it is determined whether the film contamination index data information of the continuously recorded filtration film 210 exceeds a predetermined film contamination index criterion, And sending the alert as a preset alert to the system.

As described above, according to the apparatus and method for measuring continuous film contamination index according to the present invention, it is possible to reduce the cost of replacing the filter membrane by cleaning and reusing the filter membrane after measuring or measuring the film contamination index.

Since the filtration membrane is not replaced, continuous measurement is possible by automating the flow of the membrane contamination measurement step according to the replacement of the filtration membrane according to the set period and time without being intermittent.

It is possible to monitor the data information of the film contamination index continuously and remotely and in real time so that the data information of the film pollution index against the fluctuation of the water quality of the incoming water of each local water treatment plant installed with the film pollution index measuring apparatus can be effectively managed.

Figs. 1 and 2 show a schematic diagram and a practical configuration of a conventional film contamination measuring apparatus, respectively.
3 schematically shows a configuration of a film contamination measuring apparatus according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a method for measuring film fouling according to an embodiment of the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

In addition, the described embodiments are provided for illustrative purposes and do not limit the technical scope of the present invention.

The components constituting the apparatus for measuring film contamination index according to the present invention can be used integrally or individually. In addition, some components may be omitted depending on the usage pattern.

1. Description of the device

Hereinafter, a membrane contamination measuring apparatus according to an embodiment of the present invention will be described in detail with reference to FIG.

The apparatus for measuring film contamination index according to the present invention includes a raw water supply unit 100, a filtration membrane cell 200, a process water storage unit 300, an arithmetic and control unit 400, a transmission unit 500, and a cleaning unit 600 can do.

The raw water supply unit 100 is supplied with a flow rate of a predetermined or more flow rate of raw water to be measured (hereinafter, referred to as 'raw water') to be measured, and supplies it to the filtration membrane cell 200.

The filtration membrane cell 200 is connected to the raw water supply unit 100. The filtration membrane 210 for filtering the raw water supplied from the raw water supply unit is accommodated in the filtration membrane cell 200. The raw water supplied from the raw water supply unit 100 is supplied to the filtration membrane cell 200, and subjected to membrane filtration as treated water by the filtration membrane 210.

Preferably, the filtration membrane 210 is an inorganic membrane, and the material thereof is preferably a ceramic membrane or a corrosion-resistant metallic membrane made of an inorganic material such as alumina, zirconia, titania, stainless steel, or titanium. (Polyamide), CA (cellulose acetate), and the like, which are used in the production of a polymer electrolyte membrane, and are superior in heat resistance, chemical resistance, chemical resistance and corrosion resistance, .

The process water storage unit 300 is connected to the filtration membrane cell 200 and the filtration water treated by the filtration membrane 210 is introduced into the filtration membrane cell 200 and stored therein. In addition, the filtration membrane 210 can be backwashed by supplying the treated water stored in the treated water storage unit 300 to the filtration membrane cell 200, thereby eliminating the need for separate water inflow for backwashing.

The calculation and control unit 400 is electrically connected to the process number storage unit 300, the transmission unit 500, and the cleaning unit 600. The flow of information to be transmitted is indicated by a dotted line in Fig.

The arithmetic and control unit 400 has the following functions. First, the flow rate of the process water flowing into the process water storage unit 300 is measured. Second, the membrane contamination index of the filtration membrane 210 is calculated based on the measured water flow rate, the flow rate of the raw water, the treatment time, and the like, and data information of the calculated membrane contamination index is recorded at predetermined time intervals. Third, the measured value, the calculated value and the like are transmitted to the real-time remote monitoring system through the transmitting unit 500, and a warning or the like can be outputted when the predetermined threshold value is exceeded. Fourth, the cleaning unit 600 is controlled to perform cleaning at an appropriate timing.

The transmission unit 500 is connected to the operation and control unit 400 as described above. The transmission unit 500 wirelessly transmits data information of the film contamination index measured, calculated, and recorded by the operation and control unit 400 to a predetermined real- . Here, the term "real-time remote monitoring system" means a system for monitoring and managing the membrane pollution index measured and transmitted in real time, for example, a water quality remote monitoring system TMS, and Tele-Monitoring System). However, the present invention is not limited to this, and it is possible to use a real-time monitoring system provided in government agencies, local governments, enterprises, research institutes, and universities, Of course.

The cleaning section 600 is connected to the filter membrane cell 200 and cleans the filtration membrane 210 after a predetermined number of membrane filtration processes in accordance with a control signal of the calculation and control section 400. The cleaning unit 600 may include a cleaning agent supply unit 610 and / or a steam supply unit 620 connected to the filtration membrane cells 200, respectively.

The cleaning agent supply unit 610 supplies a cleaning agent required for CIP (Cleaning In Place) of the filtration membrane 210. The supplied cleaning agent is a chemical agent required for cleaning the filtration membrane 210, But it is possible to remove particulate and inorganic contamination of the filtration membrane 210 by supplying acid cleaning agents such as sulfuric acid, hydrochloric acid and citric acid, or to remove alkaline detergents such as caustic soda and sodium hypochlorite It is possible to remove microbial and organic contamination of the filtration membrane 210 as main targets.

The steam supplying unit 620 generates and supplies steam for cleaning the steam, which is a kind of physical cleaning of the filtration membrane 210. The steam supplying unit 620 supplies steam to the steam supplying unit 620 to generate steam, A part of the treated water stored in the treated water storage part 300 is supplied to the steam supplying part 620 so that the treated water is steamed and supplied to the filtration membrane 210 in the backwashing direction, ) Can be cleaned. This particulate contamination of the filtration membrane 210 can be removed with the main goal by this steam cleaning.

It is emphasized that this is not limited to such physical cleaning and chemical cleaning. That is, the present invention adopts a semi-permanently usable membrane such as a ceramic membrane as the filtration membrane 210, so that the membrane can be cleaned at an appropriate time point to measure and calculate the membrane contamination index in real time and semi-permanently. The physical cleaning and / or the chemical cleaning may be used singly or in combination depending on the contamination state of the filtration film 210, and any other cleaning method may be applied.

2. Explanation of method

A method of measuring the film contamination index according to an embodiment of the present invention will be described with reference to FIG.

Steps S100 to S400 are similar to the above-described SDI measurement method in the prior art. This will be explained in detail.

[Step S100]

First, the operation and control unit 400 measures the time required for the primary raw water to be filtered by the filtration membrane 210 at a preset pressure and flow rate (S100). Needless to say, however, 500 mL may be used as described above in the prior art.

In operation S100, the raw water is supplied from the raw water supply unit 100 to the filtration membrane cell 200 by the pump P1 at a predetermined pressure and flow rate, and supplied to the filtration membrane cell 200 at a predetermined flow rate and pressure. The raw water is filtered by the filtration membrane 210 provided in the filtration membrane cell 200. The treated water filtered by the membrane is introduced into the treated water storage part 300 and the operation and control part 400 is connected to the treated water storage part 300) is measured by measuring the time (T ₀ ) required for membrane filtration of all the raw water by the flow rate. Here, the valve V1 may be a regulator valve for checking a preset pressure of the supplied raw water. The raw water can be bypassed under certain conditions by the valve V1.

[Step S200]

Then, while the preset time T elapses, the raw water continues to flow into the filtration membrane 210 (S200). That is, the filtration action by the membrane filtration continues for a predetermined time (T), so that the filtration membrane 210 proceeds with membrane contamination. As described above in the related art, the predetermined time T may be 15 minutes, but it is not limited thereto.

[Step S300]

Next, similar to step S100, the operation and control unit 400 measures the time (T ₁ ) required for the secondary raw water to be filtered by the filtration membrane 210 at a preset pressure and flow rate (S300). Here, the predetermined pressure and flow rate of the secondary raw water should be the same as the predetermined pressure and flow rate of the primary raw water in step S100. As the membrane contamination proceeds in step S200, the time T ₁ measured in step S300 will be different from the time T ₀ measured in step S100.

More specifically, in step S300, raw water having a predetermined flow rate and pressure is supplied from the raw water supply unit 100 to the filtration membrane cell 200 as a secondary raw material to perform membrane filtration, and raw water supplied at a predetermined flow rate and pressure All of which are filtered to be introduced into the process water storage unit 300. The calculation and control unit 400 further measures a time T ₁ required for membrane filtration of the predetermined flow rate of the secondary raw water.

[Step S400]

Next, in operation S400, the operation and control unit 400 computes the film contamination index using Equation 1 described above in the related art based on the times T ₀ , T, and T ₁ measured in the steps S 100 to S 300 Record it in a separate database. The raw water remaining in the raw water supply part 100 may be discharged through a drain valve V7 located at one side.

[Steps S500 to S600]

The above-described steps S100 to S400 are performed to measure the film contamination index once. In the prior art, there is a problem in that it is impossible to perform real-time measurement / calculation and continuous measurement / calculation of the film contamination index because the filtration membrane must be replaced after the measurement is completed after measuring the film contamination index. In the present invention, So that real-time and continuous measurement and calculation are possible.

The details are as follows.

According to the present invention, after the measurement of the membrane fouling index up to step S400, the filter membrane 210 is continuously fouled in the filtration membrane 210 during steps S100 to S400, and the filtration membrane 210 is cleaned for reuse (S500). The filtration membrane 210 adopted in the present invention is preferably made of an inorganic membrane material such as a ceramic or a corrosion resistant metal so that it can be reused after cleaning.

Specifically, the filtration membrane 210 in the filtration membrane cell 200 is cleaned. First, the raw water supply side and treated water discharge side valves V1 and V2 of the filtration membrane cell 200 are closed and the valve V5 is opened in accordance with the contamination property of the filtration membrane 210, Or the valve V6 is opened to generate steam from the steam supply unit 620 and supply the steam to the filtration membrane cell 200 to remove the filtration membrane 210 from the filtration membrane cell 200. [ Cleaning can be carried out.

In addition, or in addition to this, backwashing of the filtration membrane 210 can be performed. To this end, a part or the whole of the treated water stored in the treated water storage unit 300 is introduced into the valve V3 and the pump P2 to the filtration membrane cell 200 at a higher pressure than the pump P1 on the raw water supply side.

Particularly, a part or all of the treated water stored in the washing water storage unit 300 by the steam supplying unit 620 is supplied to the steam supplying unit 620 by using the valve V4, To the filtration membrane cell 200 in the backwash direction. The remaining part of the treated water is discharged to the outside through the switching of the valve V4.

On the other hand, the fluid remaining in the filtration membrane cell 200 is drained to the outside through a separate valve V8 after the reverse cleaning, chemical cleaning or washing with steam is completed.

The filtration membrane 210 in the filtration membrane cell 200 can be reused without replacement by repeating the measurement of the membrane contamination index and the cleaning of the filtration membrane 210 by the various methods for a predetermined period and the number of times (S600) 400 can continuously measure various values, thereby calculating and recording the film contamination index, and alerting the user that the degree of contamination is severe in some cases.

[Step S700]

The film contamination index data information calculated and recorded in operation S600 is transmitted to the predetermined real-time remote monitoring system (S700).

At this time, the transmitter 500 determines whether or not the film contamination index data information of the continuously recorded filtration film 210 exceeds the preset film contamination index criterion. If the film contamination exponent data information is exceeded, It can be transmitted as a set alarm. The warning here is not limited to the means for notifying that the recorded film contamination index data information exceeds the preset film contamination index and can be informed to the remote monitoring system through, for example, a warning phrase, an alarm by sound .

Then, the data information of the continuously recorded film contamination index is transmitted through the transmitter 500 to the predetermined real-time remote monitoring system. Thus, it is possible to remotely monitor the data of the measured film contamination index remotely. Therefore, it is possible to effectively manage the data information of the film contamination index on the fluctuation of the water quality of the incoming water of each local water treatment plant installed with the apparatus for measuring film pollution index .

As described above, according to the apparatus and method for measuring continuous film fouling according to the present invention, the following effects can be obtained.

1) By cleaning and reusing the filtration membrane, the cost of replacing the filtration membrane can be reduced.

2) Since the filtration membrane is not replaced, it is possible to continuously measure the membrane contamination due to the replacement with the filtration membrane by automating it according to the set period and time without intermittent flow of the measuring step.

3) It is possible to remotely and real-time monitor membrane pollution index continuously measured, so that data information of membrane pollution index can be managed effectively against fluctuation of water quality of incoming water of each local water treatment plant.

3. Description of another embodiment

Although only one filtration membrane 210 is illustrated in FIGS. 3 and 4, it goes without saying that the present invention is also applicable to a case where a plurality of filtration membranes 210 are provided.

Generally, the time required for the cleaning step in step S500 is relatively long as compared with the time required for calculating the film contamination index in steps S100 to S400. Accordingly, when a plurality of filtration membranes 210 are used, the membrane contamination index is calculated in any one of the filtration membranes 210 through S100 to S400, and in the other filtration membrane 210, . When a plurality of filtration membranes 210 are used in this configuration, more effective control can be achieved than applying them as a single filtration membrane 210 alone.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100:
200: filtration membrane cell
210: filtration membrane
300: process water storage unit
400: Operation and control unit
500:
600: Three governments
610: Cleaning agent supplier
620: Steam supply
P1, P2: Pump
V1 to V8: Valve

Claims (13)

A filtration membrane cell 200 in which the raw water is treated as treated water by receiving therein a filtration membrane 210 which is an inorganic membrane for membrane filtration of raw water to be measured as a membrane contamination index;
A time (T0) required for the raw water to be subjected to the membrane filtration process in the filtration membrane (210) at a preset pressure and flow rate as the primary raw water, a predetermined filtration process for the raw water after the membrane filtration process as the primary raw water (T), and the time (T1) required for the raw water to be subjected to the membrane filtration process in the filtration membrane (210) at the predetermined pressure and flow rate as the secondary raw water, , T, T1) of the filtration membrane (210);
A process water storage unit 300 in which the membrane filtered process water is stored;
A transmission unit 500 connected to the operation and control unit 400 and configured to transmit the membrane contamination index of the filtration membrane 210 recorded in the operation and control unit to a predetermined real time remote monitoring system; And
The filter sheet 210 is cleaned so that the filtration membrane 210 can be reused after the predetermined time T0, T, T1 and the membrane contamination index calculation time of the calculation and control unit 400 (600)
The cleaning part includes a steam supply part (620) for supplying cleaning steam to the filtration membrane cell (200)
The filtration membrane is cleaned by supplying treated water stored in the treated water storage unit 300 to the steam supply unit 620 to generate steam and supplying the generated steam to the filtration membrane cell 200 in the backwash direction Lt; RTI ID =
Membrane contamination index measuring device.
The method according to claim 1,
The filtration membrane 210 may be a ceramic membrane or a corrosion resistant metal membrane,
Membrane contamination index measuring device.
The method according to claim 1,
The cleaning part 600 includes a cleaning agent supply part 610 for supplying a cleaning agent to the filtration membrane cell 200,
Film Pollution Index Measuring Device
delete The method according to claim 1,
And a process water storage unit (300) in which the membrane filtered process water is stored,
Wherein the filtration membrane (210) is washed back by supplying treated water stored in the treated water storage unit (300) to the filtration membrane cell (200)
Film Pollution Index Measuring Device
delete delete delete The method according to claim 1,
The recording of the membrane filtration index of the raw water and the cleaning of the filtration membrane 210 are continuously performed according to a predetermined number of times,
Membrane contamination index measuring device.
A method for measuring film contamination index using a film contamination index measuring apparatus according to claim 1,
(a) measuring the time (T0) required for the primary raw water to be entirely filtered by the filtration membrane (210) at a preset pressure and flow rate;
(b) after the step (a), filtering the primary raw water by a predetermined time (T);
(c) measuring the time (T1) required for the secondary raw water to be filtered by the filtration membrane (210) at a predetermined pressure and flow rate in the step (a);
(d) calculating and recording a film contamination index based on the respective measured times (T0, T, T1); And
(e) cleaning the filtration membrane (210) so that the filtration membrane (210) is reused after membrane filtration of the filtration membrane (210) during the steps (a)
The filtration membrane 210 is an inorganic membrane,
Wherein the step (a) to the step (e) are repeatedly performed a predetermined number of times so that the film contamination index of the filtration membrane (210)
Method of measuring membrane contamination index.
11. The method of claim 10,
The cleaning in the step (e) may be performed by any one of at least one of a reverse cleaning, a chemical cleaning,
Method of measuring membrane contamination index.
11. The method of claim 10,
After the step (e)
(f) transmitting the membrane contamination index data information of the continuously recorded filtration membrane (210) to a predetermined real-time remote monitoring system.
Method of measuring membrane contamination index.
13. The method of claim 12,
The step (f)
Determining whether or not the membrane contamination index data information of the continuously recorded filtration membrane (210) exceeds a predetermined membrane contamination index standard, and if the membrane contamination exponent data information exceeds the predefined membrane contamination index standard, ≪ / RTI >
Method of measuring membrane contamination index.

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