KR101334651B1 - Apparatus for water purification without water storage tank and method for water purification using the same - Google Patents

Abstract

The present invention, without the installation of an intermediate reservoir tank and a pump on the water treatment path, without a storage tank for controlling the flow rate and hydraulic pressure at the point where the raw water is supplied in the height difference between the water treatment processes, and the same The present invention relates to a purified water treatment method, which includes a pump 10 for supplying raw water to be purified, a membrane filter part 100 for filtering raw water supplied to the pump 10 with a separation membrane, and In the water purification apparatus comprising a residual decontamination unit 200 for removing residual contaminants from the treated water filtered by the membrane filtration unit 100, the membrane filtration unit 100 is a residual decontamination unit ( Installed upstream of 200, hydraulic pressure is applied to the treated water supplied from the membrane filtration unit 100 to the residual decontamination unit 200 according to the height difference, and the residual contaminant in the membrane filtration unit 100 is applied. Supply to Reject (200) Is equipped with a flow rate adjusting means 20 for adjusting the flow rate of the treated water and a hydraulic pressure adjusting means 30 for adjusting the hydraulic pressure of the treated water, so as to meet the contaminant removal treatment capacity of the residual decontamination unit 200 Adjust flow rate and hydraulic pressure.

Description

Water Purification System without Storage Tank and Water Purification Method Using the Same {APPARATUS FOR WATER PURIFICATION WITHOUT WATER STORAGE TANK AND METHOD FOR WATER PURIFICATION USING THE SAME}

The present invention, without installing a storage tank and a pump on the water treatment path, without a storage tank for controlling the flow rate and hydraulic pressure at the point where the raw water is supplied in the height difference between the water treatment processes and the water treatment apparatus using the same It relates to a water treatment method.

Advanced water treatment process is an additional water treatment process that achieves the target water quality by treating various contaminants which are difficult to remove from raw water by general water treatment. Typical typical water treatment processes are membrane filtration process and advanced oxidation (ozone treatment). A process, an activated carbon adsorption process, a disinfection process, a biological pretreatment process, etc. are mentioned. These advanced water treatment processes are added to the purified water treatment process alone or by combining different advanced water treatment processes to increase the water treatment effect. Among the advanced water treatment processes, membrane filtration process is basically adopted, and at least one of the remaining advanced oxidation process, activated carbon adsorption process, disinfection process, and biological pretreatment process is added to the membrane filtration process to remove contamination remaining in the treated water. do.

1 is a block diagram showing a conventional water treatment apparatus consisting of membrane filtration, advanced oxidation (ozone treatment), activated carbon adsorption, disinfection, Figure 2 is a graph showing the pressure drop for each process in the conventional water treatment apparatus.

1 and 2, the purified water treatment apparatus adopting the advanced water treatment process is pumped by the pump 10, pump 10 for supplying the raw water in the reservoir 1 for storing the raw water to be purified water The first storage tank (3), and the first storage tank (3) for temporarily storing the treated water obtained by filtering the raw water through the membrane to filter the contaminants by filtering the contaminants; And a residual decontamination unit 200 which is connected to receive the treated water and removes contaminants remaining in the treated water of the first storage tank 3 and finally stores purified water in the purified water 2. . As such, the purified water treatment device adjusts the flow rate of the treated water supplied to the residual decontamination unit 200 by installing a first storage tank 3 between the membrane filtration unit 100 and the residual decontamination unit 200. .

In addition, the residual decontamination unit 200 inputs ozone to the treated water to oxidize and remove dissolved pollutants, and then removes and removes the fine pollutants and odor remaining in the treated water with activated carbon. Activated carbon adsorption tank 220, and the sterilization tank 230 for sterilizing and inactivating the microorganisms and bacteria remaining in the treated water in order to sequentially connect, advanced oxidation of the treated water of the first storage tank (3) The tank 210, the activated carbon adsorption tank 220 and the sterilization tank 230 in order to pass through the water treatment step by step. In addition, between the advanced oxidation tank 210 and the activated carbon adsorption tank 220, the second storage tank 4 for temporarily storing the treated water treated with the advanced oxidation tank 210 and then supplying the activated carbon adsorption tank 220 to the rear stage. ) To adjust the flow rate of the treated water supplied to the activated carbon adsorption tank (220). On the other hand, when supplying the treated water to the activated carbon adsorption tank 220, a constant hydraulic pressure should be applied, so that the pump 5 for pumping the treated water of the second storage tank 4 and pumped to the activated carbon adsorption tank 220 is also provided.

As described above, in the conventional water treatment apparatus, a storage tank is installed between processes to secure facility cost and facility space for installing the storage tank. In addition, in the conventional water treatment apparatus, as shown in FIG. 2, the braking occurs in the flow rate of the treated water due to the storage tank. Therefore, a pump must be additionally installed to match the flow rate and hydraulic pressure of the treated water required in the downstream treatment process of the storage tank. As a result, there was also a problem that the power cost increases.

In addition, there is a fear of secondary contamination, such as microbial growth due to the stagnation of the treated water in the storage tank, it was necessary to increase the processing capacity of the process to be treated at the rear end of the storage tank.

The present invention was devised to solve the above-mentioned problems, and does not install a reservoir and does not apply a brake to the flow of treated water and does not require an additional pump, and does not additionally install a reservoir and a pump in the middle of a water treatment process. The present invention relates to a water purification apparatus without a storage tank for smoothly treating water by maintaining hydraulic pressure required for each process, and a water treatment method using the same.

The present invention for achieving the above object, the pump 10 for supplying the raw water to be purified, membrane filtration unit 100 for filtering the raw water supplied to the pump 10 with a separation membrane, and the membrane filtration unit ( In the purified water treatment device comprising a residual decontamination unit 200 for removing residual contaminants from the treated water filtered by 100, the membrane filter unit 100 upstream of the residual decontamination unit 200 Installed in the membrane filter unit 100 so that hydraulic pressure is applied to the treated water supplied from the membrane filter unit 100 to the residual contamination remover 200, and the residual pollution remover 200 is removed from the membrane filter unit 100. It is provided with a flow rate adjusting means 20 for adjusting the flow rate of the treated water supplied to the water and a hydraulic pressure adjusting means 30 for adjusting the hydraulic pressure of the treated water, the treatment according to the pollutant removal processing capacity of the residual decontamination unit 200 It is characterized by adjusting the flow rate and hydraulic pressure of water.

The flow rate control means 20, the flow meter is installed in the treated water outlet of the membrane filtration unit 100 to measure the flow rate of the treated water; A pump controller 23 for controlling the pump 10 to adjust the supply amount of raw water; And a flow controller 22 for controlling the pump controller 23 so that the flow rate measured by the flow meter 21 reaches a preset value.

The hydraulic control means 30, the hydraulic system 31 is installed in the treated water outlet of the membrane filtration unit 100 to measure the hydraulic pressure of the treated water; A valve 33 installed at the raw water inlet of the membrane filtration unit 100; And a hydraulic controller 32 for controlling the valve 33 so that the hydraulic pressure measured by the hydraulic system 31 reaches a preset value.

The residual decontamination unit 200 is characterized in that the passage through the treated water in a closed structure, the hydraulic pressure controlled by the hydraulic pressure control means 30 is applied to the path of the treated water.

The remaining decontamination unit 200, the activated carbon adsorption tank 220 of the sealed structure to adsorb and remove the fine contaminants and odor remaining in the treated water with activated carbon; Characterized by including.

The residual decontamination unit 200 is installed downstream of the activated carbon adsorption tank 220 and has a closed structure for sterilizing and inactivating microorganisms and bacteria remaining in the treated water treated with the activated carbon adsorption tank 220. Disinfection tank 230; Characterized by including.

The residual decontamination unit 200 is installed upstream of the activated carbon adsorption tank 220 and injected ozone into the treated water treated by the membrane filtration unit 100 to oxidize and remove dissolved contaminants downstream. It characterized in that it comprises; advanced oxidation tank 210 of the closed structure to supply to the activated carbon adsorption tank 220 installed in.

In addition, the present invention, the pump 10 for supplying the raw water, the membrane filtration unit 100 for filtering the raw water to the separation membrane, and the residual decontamination unit 200 for removing the remaining contaminants from the treated water obtained by filtration with the separation membrane In the water purification treatment method does not have a storage tank for water treatment by using, the raw water pumping step (S10) for controlling and pumping the flow rate of the raw water to be purified; A membrane filtration step (S20) of hydraulically controlling the raw water supplied to the raw water pumping step (S10) and filtering the raw water; Residual decontamination step (S30) for receiving the treated water filtered in the membrane filtration step (S20) downstream to remove the remaining contaminants; characterized in that it comprises a.

In the raw water pumping step (S10), the pump 10 is controlled such that the flow rate of the treated water filtered and discharged through the filtration membrane is a predetermined flow rate, and the membrane filtration step (S20) is performed by filtration through the filtration membrane. The hydraulic pressure of the raw water supplied to the filtration membrane is adjusted by the valve control so that the hydraulic pressure of the treated water becomes a predetermined hydraulic pressure.

The residual decontamination step (S30), the advanced oxidation step (S31) of receiving the treated water obtained by filtration in the membrane filtration step (S20) downstream to oxidize dissolved pollutants with ozone (S31); Activated carbon adsorption step (S32) of receiving the treated water oxidized in the advanced oxidation step (S31) downstream to adsorb the fine pollutant and odor with activated carbon; And a sterilization step (S33) for sterilizing and inactivating microorganisms and bacteria by receiving the treated water adsorbed in the activated carbon adsorption step (S32) downstream.

The advanced oxidation step (S31), activated carbon adsorption step (S32) and disinfection step (S33), characterized in that the purified water treatment with the passage path of the treated water as a closed structure.

Therefore, the present invention made as described above has a height difference between the membrane filtration unit 100 and the residual decontamination unit 200, the treated water supplied from the membrane filtration unit 100 to the residual decontamination unit 200 By adjusting the flow rate and hydraulic pressure of the residual pollution removal unit 200 to operate according to the water treatment capacity, there is no need to install a storage tank, thereby improving the space efficiency of the facility and smoothly the flow of treated water without braking and in the storage tank It is caused by the retention It is possible to obtain a high quality purified water without fear of secondary pollution.

In addition, the present invention adjusts the flow rate and the hydraulic pressure by the pump 10 for pumping the raw water and the valve 33 installed on the inlet path of the raw water, thereby controlling the flow rate and hydraulic pressure of the treated water to be supplied to the residual decontamination unit 200. In order to eliminate the need for additional pumps, energy efficiency can be increased.

In addition, according to the present invention, since the treated water passage path of the residual decontamination unit 200 is formed in a sealed structure, the internal hydraulic pressure of the residual decontamination unit 200 using the valve 33 installed in the membrane filtration unit 100. Since it can be adjusted, there is no sudden pressure drop, and there is no need to install additional pumps, and yet, residual contaminants can be effectively removed from the residual decontamination unit 200.

In addition, the present invention is to provide a difference in height between the water purification process when connecting the different water purification process to configure the residual pollution removal unit 200, there is no need to install a storage tank and pump in the middle, the residual pollution removal unit 200 Improve energy efficiency and prevent secondary pollution.

1 is a block diagram of a conventional water treatment apparatus.
Figure 2 is a graph showing the hydraulic pressure drop in the conventional water treatment device.
3 is a block diagram and arrangement of the water treatment apparatus without a storage tank according to an embodiment of the present invention.
4 is a graph showing a drop in hydraulic pressure in a water treatment apparatus without a storage tank according to an embodiment of the present invention.
5 is a flow chart of a water treatment method without a storage tank according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

3 is a block diagram and arrangement of the water treatment apparatus without a storage tank according to an embodiment of the present invention.

As shown in FIG. 3, the water purification apparatus without the storage tank according to the embodiment of the present invention may be treated with the membrane filtration unit 100 and the remaining decontamination unit 200 corresponding to the water purification process, and the water treatment process. A pump 10 for supplying raw water, a flow rate adjusting means 20 for adjusting the flow rate / hydraulic pressure of the raw water to be treated in the water treatment process, and a hydraulic pressure adjusting means 30, is configured to include. In addition, the residual decontamination unit 200 is installed downstream of the membrane filtration unit 100 so that pressure due to the height difference is applied to the treatment water supplied to the membrane filtration unit 100 so that the inflow of the treatment water is increased. Make it smooth.

The pump 10 is a power means for pumping raw water from the reservoir 1 storing the raw water to be purified and supplying it to the membrane filtration unit 100. If the pump is to pump the raw water and to adjust the supply amount of raw water by using the flow control means 20 is satisfied. Here, the raw water that is stored in the reservoir 1 to be purified may be raw water for intake, purified water that has been treated by a mixing / coagulation / precipitation process, which is a general water treatment process, or tap water that is reprocessed.

The membrane filtration unit 100 is filtering means for filtering the raw water supplied to the pump 10 with a separator to filter contaminants contained in the raw water. Here, the membrane filtration unit 100 is piped to the pump 10 and the residual decontamination unit 200, respectively, and the raw water is continuously supplied by the pump 10, and the raw water is filtered through a separator to remain in the rear end. Sending to the decontamination unit 200, and forms the entire path through which the raw water passes in a sealed structure so that the hydraulic pressure of the supplied raw water is applied to the remaining decontamination unit 200 of the rear end.

On the other hand, the membrane filtration unit 100 is provided with a backwashing means to remove the membrane fouling (membrane fouling) generated in the separator periodically backwashing the separator, by providing a plurality of separators in parallel to install the raw water It is preferable to branch off and membrane filtration. The reason why the plurality of separation membranes are configured in parallel is to filter the plurality of separation membranes in order, and to continuously filter the remaining separation membranes except for the back washing membrane, which is also advantageous for the maintenance of the separation membrane. The separation membrane used in the membrane filtration unit 100 may be composed of, for example, MF (Microfiltration) and UF (Ultrafiltration) separation membrane.

The residual decontamination unit 200 is installed downstream of the membrane filtration unit 100, and removes the remaining contaminants from the treated water filtered by the separator to finally remove purified water from the purified water ( 2) to save.

According to an embodiment of the present invention, the residual pollution removing unit 200 is provided with an advanced oxidation tank 210, an activated carbon adsorption tank 220, and a disinfection tank 230 sequentially connected to the pipe, and an advanced oxidation tank 210 is provided. It is provided to be arranged in the order of activated carbon adsorption tank 220 and disinfection tank 230. Accordingly, the treated water supplied to the activated carbon adsorption tank 220 installed downstream of the advanced oxidation tank 210 has hydraulic pressure corresponding to the height difference between the advanced oxidation tank 210 and the activated carbon adsorption tank 220. The treated water supplied to the disinfection tank 230 installed downstream of the activated carbon adsorption tank 220 is subjected to hydraulic pressure corresponding to the height difference between the activated carbon adsorption tank 220 and the disinfection tank 230.

In addition, the internal structures of the advanced oxidation tank 210, the activated carbon adsorption tank 220, and the disinfection tank 230 constituting the residual decontamination unit 200 constitute a sealed structure through which the treated water passes. The hydraulic pressure of the treated water supplied through the filtration unit 100 is applied along the path of the treated water. Accordingly, even if a separate pump is not installed inside the residual decontamination unit 200, pressurized treated water may be supplied and contaminants may be removed. In other words, in general, the advanced oxidation tank, activated carbon adsorption tank, and disinfection tank may also be configured to open the passage path of the treated water. Meanwhile, air may be generated in the process of passing the treated water through the advanced oxidation tank 210, the activated carbon adsorption tank 220, and the disinfection tank 230, as shown in FIG. 3. Vent valves 211, 221, 231) are recommended.

Since the components of the residual decontamination unit 200 are generally the components used in the water purification process, a brief description thereof will be provided. The advanced oxidation tank 210 is a purification tank for oxidizing and removing dissolved pollutants by adding ozone to the treated water, and the activated carbon adsorption tank 220 adsorbs fine contaminants and odors remaining in the treated water as activated carbon. The disinfection tank 230 is a purification tank for sterilizing and inactivating microorganisms and bacteria remaining in the treated water.

As described above, the present invention installs the residual decontamination unit 200 downstream of the membrane filtration unit 100 and installs the components of the residual decontamination unit 200 to have a height difference, and then to the pump 10. It has a mounting structure connected to the pipe to supply the raw water to the membrane filtration unit 100, the flow control means 20 for adjusting the flow rate of the treated water supplied to the remaining decontamination unit 200 and the treated water Further provided with a hydraulic control means 30 for adjusting the hydraulic pressure to adjust the flow rate and the hydraulic pressure of the treated water in accordance with the pollutant removal processing capacity of the residual decontamination unit 200.

Here, the flow rate control means 20 and the hydraulic pressure control means 30, the treated water discharged to the treated water outlet of the membrane filter portion 100 by adjusting the flow rate and the hydraulic pressure of the raw water supplied to the membrane filter portion 100 To regulate the flow rate and hydraulic pressure.

Specifically, the flow rate adjusting means 20 is installed in the treated water outlet for discharging the treated water membrane filtered by the membrane filtration unit 100 and the flow meter 21 for measuring the flow rate of the treated water, the pump A pump controller 23 for controlling the supply amount of raw water by controlling (10), and a flow controller 22 for controlling the pump controller 23 so that the flow rate measured by the flow meter 21 reaches a preset value. It includes.

The hydraulic control means 30, the hydraulic system 31 which is installed in the treated water outlet of the membrane filtration unit 100 to measure the hydraulic pressure of the treated water discharged by membrane filtration to the membrane filtration unit 100, In the membrane filtration unit 100, a valve 33 installed at a raw water inlet through which the raw water is introduced by the pump 10 to adjust the hydraulic pressure of the raw water, and the hydraulic pressure measured by the hydraulic system 31 are preset. And a hydraulic controller 32 that controls the valve 33 to reach a value.

As described above, the flow rate adjusting means 20 and the hydraulic pressure adjusting means 30 are discharged from the treated water outlet of the membrane filtration unit 100 and supplied to the residual decontamination unit 200 and the hydraulic pressure In order to match the flow rate and hydraulic pressure of the treated water required by the residual decontamination unit 200, the pump 10 and the valve 33 installed at the raw water inlet side of the membrane filtration unit 100 are adjusted. Accordingly, it is not necessary to add a pump to adjust the flow rate of the treated water to be supplied to the residual decontamination unit 200, and between the flow rate controlled by the pump 10 and the hydraulic pressure adjusted by the valve 33 Considering the correlation, the valve 33 is installed on the raw water inlet side of the membrane filtration unit 100 in which the pump 10 is installed, so that the flow rate and the hydraulic pressure can be easily adjusted.

As described above, in the water treatment apparatus according to the present invention, in which the storage tank is not installed in the membrane filtration unit 100 and the residual decontamination unit 200, the membrane filtration unit 100 and the residual decontamination unit 200 are passed through. The hydraulic pressure of the treated water gradually decreases as shown in the graph of FIG. 4.

), 막여과부(100)와 잔존오염제거부(200) 간의 높이차(H1)에 의한 압력(

), 잔존오염제거부(200)의 내부에서 고도산화조(210)와 활성탄흡착조(220) 간의 높이차(H2)에 의한 압력(

), 활성탄흡착조(220)와 소독조(230) 간의 높이차(H3)에 의한 압력(

)으로 이루어진다. 물론, 도 3에 도시된 바와 같이 소독조(230)와 정수지(2) 사이의 높이 차이가 있으면, 낙차에 의한 압력도 가해진다.In detail, the hydraulic pressure applied to the treated water is determined by the pressure (

), The pressure due to the height difference (H1) between the membrane filtration unit 100 and the residual decontamination unit 200 (

), The pressure due to the height difference (H2) between the advanced oxidation tank 210 and the activated carbon adsorption tank 220 in the residual contamination removal unit 200 (

), The pressure due to the height difference (H3) between the activated carbon adsorption tank 220 and the disinfection tank 230 (

) Of course, if there is a height difference between the disinfection tank 230 and the purified water 2 as shown in Figure 3, the pressure due to free fall is also applied.

In this way, the pressure applied by the pressure and the height difference by the pump 10, in the embodiment of the present invention as the passage passage of the treated water in a closed structure as shown in the graph shown in Figure 4 membrane filtration unit 100 Starting from the inlet of the raw water to the purified water outlet of the disinfection tank 230, it can be shown by approximating the graph to linearly drop without sudden hydraulic fluctuations.

Therefore, by controlling the pump 10 and the valve 33 installed on the raw water inlet side of the membrane filtration unit 100, the advanced oxidation tank 210, activated carbon adsorption constituting the residual contamination removal unit 200 installed at the rear end By adjusting the hydraulic pressure in the tank 220 and the disinfection tank 230, it is possible to smoothly perform each water treatment process.

5 is a flow chart of a water treatment method without a storage tank according to an embodiment of the present invention.

Referring to FIG. 5, the water purification treatment method without the storage tank according to the embodiment of the present invention is made by using the above-described water treatment device, a raw water pumping step of supplying raw water (S10), and a membrane for filtering raw water with a filtration membrane. Filtration step (S20), comprising a residual contamination removal step (S30) for removing the remaining contaminants in the treated water obtained by filtration with a filtration membrane.

In detail, the raw water pumping step (S10) is supplied to the membrane filter unit 100 by pumping the raw water of the reservoir 1 to the pump 10, but by controlling the flow rate of the pumped raw water membrane filter unit 100 The flow rate discharged through the treated water outlet of the to maintain a predetermined flow rate.

The membrane filtration step (S20) is filtered through the filtration membrane of the membrane filtration unit 100, the raw water supplied to the pump 10 is sent to the residual decontamination unit 200 of the rear end, raw water supplied to the pump 10 By adjusting the hydraulic pressure of the residual water removal unit 200 to maintain the hydraulic pressure of the treated water sent to the preset hydraulic pressure. Here, in order to continuously process the purified water without interruption, if a plurality of filtration membranes are installed in parallel, and the sequential number is set back, the filtration membrane to be backwashed does not enter the raw water and the hydraulic pressure fluctuates even if the backwash is not performed. Since the hydraulic pressure of the treated water discharged from the filtration membrane is changed by membrane fouling generated in the filtration membrane, the hydraulic pressure at the point where the water flows through the plurality of filtration membranes and merges is maintained at the preset hydraulic pressure.

The remaining decontamination step (S30) is a step of removing the remaining contaminants by using the remaining decontamination unit 200 in the treated water obtained by filtering by the membrane filtration unit 100, the residual decontamination unit 200 Since it is installed downstream of the membrane filtration unit 100, the treated water obtained by filtering the raw water is supplied from the lower side so that the hydraulic pressure due to the height difference is applied.

According to an embodiment of the present invention, the residual contamination removing step (S30) is an advanced oxidation step (S31) using an advanced oxidation tank 210, an activated carbon adsorption step (S32) and a disinfection tank (using an activated carbon adsorption tank 220) 230 is made of a disinfection step (S33).

The advanced oxidation step (S31) is a step of oxidizing dissolved pollutants with ozone by receiving the treated water obtained by filtration in the membrane filtration step (S20) downstream.

The activated carbon adsorption step (S32) is a step of receiving the treated water oxidized in the advanced oxidation step (S31) downstream to adsorb the fine pollutants and odors with activated carbon.

The disinfection step (S33) is a step of sterilizing and inactivating microorganisms and bacteria by receiving the treated water adsorbed in the activated carbon adsorption step (S32) downstream.

On the other hand, the above advanced oxidation step (S31), activated carbon adsorption step (S32) and disinfection step (S33) is a closed structure for the passage of purified water through the treated water, the control in the membrane filtration step (S20) Hydraulic pressure is applied along the path. Accordingly, hydraulic pressure is applied to the treated water that is purified in the activated carbon adsorption step (S32) and the disinfection step (S33), as well as in the highly oxidized step (S31), thereby smoothing the water treatment process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, . ≪ / RTI > Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

1: reservoir 2: clean water
10: pump
20: flow rate control means 21: flow meter 22: flow controller 23: pump controller
30: hydraulic control means 31: hydraulic system 32: hydraulic controller 33: valve
100: membrane filter 110: raw water inlet 120: treated water outlet
200: residual decontamination unit 210: advanced oxidation tank
220: activated carbon adsorption tank 230: disinfection tank

Claims (11)

Residual contamination in the pump 10 for supplying the raw water to be purified, membrane filtration unit 100 for filtering the raw water supplied to the pump 10 with a separation membrane, and the treated water filtered through the membrane filtration unit 100 In the water purification apparatus comprising a residual decontamination unit 200 for removing a substance,
The membrane filtration unit 100 is installed upstream of the residual decontamination unit 200 so that the hydraulic pressure is applied to the treated water supplied from the membrane filtration unit 100 to the residual decontamination unit 200 by the height difference. and,
The membrane filtration unit 100 is provided with a flow rate control means 20 for adjusting the flow rate of the treated water supplied to the residual decontamination unit 200 and a hydraulic pressure control means 30 for adjusting the hydraulic pressure of the treated water, Purification apparatus without a storage tank, characterized in that for adjusting the flow rate and hydraulic pressure of the treated water in accordance with the pollutant removal processing capacity of the decontamination unit 200. The method of claim 1,
The flow control means 20,
A flow meter 21 installed at the treated water outlet of the membrane filtration part 100 to measure the flow rate of the treated water;
A pump controller 23 for controlling the pump 10 to adjust the supply amount of raw water;
A flow controller 22 for controlling the pump controller 23 so that the flow rate measured by the flow meter 21 reaches a preset value;
Water tank without storage tank, characterized in that configured to include. The method of claim 2,
The hydraulic control means 30,
A hydraulic system 31 installed at the treated water outlet of the membrane filtration unit 100 to measure the hydraulic pressure of the treated water;
A valve 33 installed at the raw water inlet of the membrane filtration unit 100;
A hydraulic controller 32 for controlling the valve 33 so that the hydraulic pressure measured by the hydraulic system 31 reaches a preset value;
Water tank without storage tank, characterized in that configured to include. 4. The method according to any one of claims 1 to 3,
The remaining decontamination unit 200,
A storage tank free water treatment device, characterized in that the passage through the treated water in a closed structure, so that the hydraulic pressure controlled by the hydraulic control means 30 is applied to the path of the treated water. 5. The method of claim 4,
The remaining decontamination unit 200,
Activated carbon adsorption tank 220 of a sealed structure for adsorbing and removing the fine contaminants and odor remaining in the treated water with activated carbon;
Water tank without storage tank characterized in that it comprises a. 6. The method of claim 5,
The remaining decontamination unit 200,
A disinfection tank 230 installed downstream of the activated carbon adsorption tank 220 for sterilizing and inactivating microorganisms and bacteria remaining in the treated water treated with the activated carbon adsorption tank 220;
Water tank without storage tank characterized in that it comprises a. The method according to claim 6,
The remaining decontamination unit 200,
It is installed upstream of the activated carbon adsorption tank 220, the ozone is added to the treated water treated by the membrane filtration unit 100 to oxidize and remove dissolved pollutants, and then to the activated carbon adsorption tank 220 installed downstream. Advanced oxidation tank 210 of the sealed structure to supply;
Water tank without storage tank characterized in that it comprises a. Water purification treatment using a pump 10 for supplying raw water, a membrane filtration unit 100 for filtering raw water through a separation membrane, and a residual decontamination unit 200 for removing residual contaminants from the treated water obtained by filtration with a separation membrane. In the water purification method without a storage tank,
Raw water pumping step (S10) for controlling and pumping the raw water to be purified water flow;
A membrane filtration step (S20) of hydraulically controlling the raw water supplied to the raw water pumping step (S10) and filtering the raw water;
Residual decontamination step (S30) of receiving the treated water filtered in the membrane filtration step (S20) downstream to remove the remaining contaminants;
Water treatment method without a storage tank, characterized in that comprises a. The method of claim 8,
In the raw water pumping step (S10), the pump 10 is controlled so that the flow rate of the treated water filtered and discharged through the filtration membrane becomes a preset flow rate.
The membrane filtration step (S20), the storage tank-free water treatment method characterized in that for controlling the hydraulic pressure of the raw water supplied to the filtration membrane by the valve control so that the hydraulic pressure of the treated water to be filtered and discharged by the filtration membrane becomes a predetermined hydraulic pressure. . The method of claim 9,
The remaining decontamination step (S30),
Advanced oxidation step (S31) of receiving the treated water obtained by filtration in the membrane filtration step (S20) downstream to oxidize dissolved pollutants with ozone;
Activated carbon adsorption step (S32) of receiving the treated water oxidized in the advanced oxidation step (S31) downstream to adsorb the fine pollutant and odor with activated carbon; And
Disinfection step (S33) to receive the treated water adsorbed in the activated carbon adsorption step (S32) downstream to sterilize and inactivate microorganisms and bacteria;
Water treatment method without a storage tank, characterized in that comprises a. The method of claim 10,
The advanced oxidation step (S31), activated carbon adsorption step (S32) and disinfection step (S33),
A water purification treatment method without a storage tank, characterized in that water treatment is carried out with a passage structure of treated water.

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