KR20200057367A - Submerged water treatment and water reservoir system for adjusting siphon driving water level - Google Patents

Abstract

The present invention provides a submerged water treatment and storage system using a siphon driving water level adjustment method, and a method thereof. According to the present invention, a siphon pipe is installed such that an upper reservoir and a lower reservoir have a differential head in a reservoir in which rainwater, underground water, surface water, valley water and the like are collected to be used as water for living, landscape water, industrial water or the like to cope with drought, and a siphon driving water level is adjusted to correspond to a water level of the lower reservoir, thereby smoothly supplying target raw water by a siphon phenomenon to treat the same. Also, a water treatment device using a submerged separator and the lower reservoir are integrally formed to simultaneously perform water treatment and storage of the target raw water. In addition, flow of a flow rate change of the target raw water collected and transferred by the siphon pipe is controlled such that the lower reservoir maintains a predetermined water level, thereby enabling physical cleaning of the submerged separator.

Description

Submerged water treatment and storage integrated system with siphon driving water level control method and method thereof {SUBMERGED WATER TREATMENT AND WATER RESERVOIR SYSTEM FOR ADJUSTING SIPHON DRIVING WATER LEVEL}

The present invention relates to an immersion-type water treatment and storage integrated system, and more specifically, in a storage tank or reservoir in which rainwater, groundwater, surface water, or valley water is collected to be used as living water, landscaping water, industrial water, etc. in response to drought. It relates to an immersion-type water treatment and storage integrated system and a method for integrating a water treatment device and a storage system using an immersion type membrane and adjusting a driving level of a siphon pipe.

In general, the area surrounded by the sea on the four sides of the high tide is called Island, and when classifying books by area, most of the books in Korea belong to the smallest books with an area of 100 km or less. Such small-scale islands are not easy to secure a water source because of poor river development, and are vulnerable to disasters such as typhoons and droughts due to geographical conditions.

Domestic islands mainly supply water for living using small-scale water supply facilities, pipeline and ship transportation, and rainwater collection facilities. In addition, only 29% of the inhabited population receives water supply, so drinking water is habitual even in the short-term drought. I am struggling to run out.

In particular, some islands are transporting water from nearby land and other islands to the water supply line. In general, the number of water supply lines is insufficient and the distance between them is limited, and the water supply is limited to once every 15-20 days. In addition, although many island areas use seawater desalination facilities to supply water, these seawater desalination facilities have high production costs and are difficult to maintain, so the facility utilization rate is often low, and in some areas salty water is supplied. There are cases. In addition, when these seawater desalination facilities are aging, groundwater is used as water for each region through wells.

On the other hand, although stable water supply is being promoted through the island's drinking water source development project, there have been problems such as limited water shortage or loss of function of existing water supply facilities due to extreme drought due to climate change. For example, the existing water supply facility that utilizes rainwater, etc. is separated from the water collection facility, treatment facility, and water supply facility, and a filtration facility driven by a separate pressurized pump and various control panels are installed. It has been concentrated in medium and large facilities with

In particular, in the case of a water treatment system using a separation membrane, a separation membrane and a module are used without changing a structure, and a pressure or vacuum suction pump is necessarily required at the front or rear of the separation membrane for pressure driving. Typically, in a water treatment system using a separator, power consumption of 0.1 to 0.2 mAh per ton is generated, so a separate power supply is required in a small water treatment facility.

On the other hand, in the water purification plant that uses lake water in the city center or surface water in the reservoir as inflow water, when the separation membrane technology is introduced to a facility that supplies water through separate water treatment devices such as mixing, flocculation, sedimentation, and sand filtration, raw water supply and pump , Membrane module, washing, piping and control facilities, etc. At this time, the type of membrane, membrane filtration area, membrane filtration flow rate, membrane filtration recovery rate, etc., should consider the water quality standards of the raw water quality and filtered water and the size of the facility. In addition, a discharge water treatment facility should be installed as necessary, and separate pre-treatment facilities and post-treatment facilities are installed to protect the membrane module and improve the quality of filtered water. In recent years, the membrane filtration technology that has emerged has been improved in processes such as complete removal of chlorine-resistant protozoa, compaction of the system, automation of operation, and energy saving.

As a prior art for the separation membrane water treatment apparatus for rainwater treatment described above, Korean Patent Registration No. 10-1786821 discloses an invention titled "gravity-driven water treatment apparatus", which will be described with reference to FIG. 1.

1 is a view schematically showing a gravity-driven water treatment apparatus according to the prior art.

Referring to Figure 1, the gravity-driven water treatment device according to the prior art, the inlet pipe 11; A primary storage tank 13 through which water flows through the inflow water pipe 11; A screen filter 14 for removing contaminants from the water stored in the primary storage tank 13; A secondary storage tank 15 in which water passing through the screen filter 14 is stored; A flat-type ultrafiltration separator 16 provided in the secondary storage tank 15; A third storage tank 18 in which water that has passed through the ultrafiltration separator 16 is stored; And a effluent pipe 19 for discharging water from the tertiary storage tank 18, wherein the primary storage tank 13 and the secondary storage tank 15 are integrally formed, and can be applied to a small-scale water treatment device.

In the gravity-driven water treatment device according to the prior art, the minimum head height d1 of the primary storage tank 13 and the secondary storage tank 15 is proposed to be 0.5 to 2.0 m, and in particular, the primary storage tank 13 ) Uses a screen filter 14 composed of a granular type filter material made of polypropylene or a general filter material that can be easily purchased, such as sand. In addition, the secondary storage tank 15 maintains the immersion-type flat-type ultrafiltration separator 16 in a vertical shape, and maintains a differential pressure of 50 to 100 mbar before and after the separator. In addition, the lower third storage tank 18 is composed of a storage tank in which the final treated water is stored.

In the case of a gravity-driven water treatment device according to the related art, it is possible to purify rainwater, surface water, gray water, etc. by using a porous separation membrane as a gravity-driven method without requiring a mechanical pump or a high head difference.

However, in the case of the gravity-driven water treatment device according to the prior art, by using an ultrafiltration membrane having a pore size of 0.001 to 0.1 µm, the concentration polarization phenomenon is intensified and the clogging of particles inside the pore progresses to the interface where no water permeation occurs. , Accordingly, a separate washing facility is required. In addition, there is a problem that the water level of the storage tank cannot be kept constant, and the permeate flux is rapidly reduced due to the concentration polarization phenomenon on the surface of the separator.

On the other hand, as another prior art, Korean Patent Registration No. 10-600567 discloses an invention entitled “Water treatment device integrating an immersion type membrane module in a fiber filter,” which will be described with reference to FIGS. 2 and 3.

2 is a view schematically showing a water treatment device integrating an immersion type separation membrane module in a fiber filter according to the prior art, and FIG. 3 is a water treatment system using a water treatment device integrating an immersion type separation membrane module in the fiber filter shown in FIG. 2. It is a diagram schematically showing.

As shown in Fig. 2, a water treatment device in which an immersion type separation membrane module is integrated in a fiber filter according to the prior art is disposed in an integrated water treatment device 21 into which the water to be treated flows, and primarily filters the water to be treated. A fiber filter 22; An immersion type separation membrane module 23 disposed in the fiber filter 22 to secondaryly filter the target water filtered by the fiber filter 22; And an air diffuser for supplying air during backwashing of the fiber filter 22 and the immersion-type membrane module 23, respectively, which are installed under the integral water treatment device 21 and the immersion-type membrane module 23, wherein: The integrated water treatment device 21 includes a raw water collection tank 31, a fiber filter concentrated water discharge tank 32, a fiber filter treatment water tank 33, a membrane concentrated water discharge tank 34, and a separation membrane treatment water tank 35 through respective valves. ).

As shown in FIG. 3, the water treatment system using a water treatment device incorporating an immersion type membrane module in a fiber filter according to the prior art includes a screen 41, a raw water collecting tank 31, a raw water supply pump 43, and cohesive maturation. And a raw water adjustment tank 42, an integrated water treatment device 21, a membrane concentrated water discharge tank 34, a fiber filter backwash pump 24 and a separation membrane treatment water tank 35, wherein the integrated water treatment device 21 is a fiber It consists of a filter 22 and a membrane module 23.

According to the water treatment device in which the immersion type separation membrane module is integrated in the fiber filter according to the prior art, the state of maintaining the membrane filtration function far superior to that of the conventional sand filter in water quality by combining the fiber filter and the immersion type separation membrane module In addition, when using the existing separation membrane, not only can the operation cost be drastically reduced, but also the size of the entire process can be reduced and the production cost can be reduced.

However, in the case of a water treatment device in which an immersion type separation membrane module is integrated in a fiber filter according to the prior art, a hollow fiber type precision filtration or ultrafiltration is used as the immersion type separation membrane module 23, but the external fiber filter 22 and the inside are used. Since the separation membrane's filtration rate and backwashing time and period are different depending on the concentration of each influent, it is necessary to adjust the raw water state by adding separate powdered activated carbon and flocculant to the raw water adjusting tank 42, and a separate pressurized / suction pump is required. In addition, there is a problem in that the filtration time is irregularly operated according to the nature and flow rate of the influent water.

On the other hand, as another prior art, Korean Patent Registration No. 10-1526884 discloses an invention entitled “Water purification system using immersion type membrane device”, which will be described with reference to FIG. 4.

4 is a view schematically showing a water purification system using an immersion type membrane device according to the prior art.

Referring to Figure 4, the water treatment system using an immersion type membrane device according to the prior art, mixing and flocculation process of mixing and flocculating flocculant in the influent; A sedimentation process for sedimentation of coagulation treatment water by mixing and agglomeration processes through a sedimentation basin in a sedimentation tank equipped with a sedimentation basin; It comprises a membrane filtration step of filtering the precipitated water by the precipitation process by the hollow fiber membrane of the immersion type membrane device in a separation tank equipped with an immersion type membrane device.

According to the water treatment system using an immersion type separation membrane device according to the prior art, the existing rectangular sedimentation was improved to a sedimentation plate to reduce the residence time required for sedimentation, and separate separation membrane filtration tanks and ozone reaction tanks were installed in the existing sedimentation basins.

However, in the case of a water purification system using an immersion type membrane device according to the prior art, there is a problem that raw water is not intermittently supplied to an ozone facility that is a subsequent process due to filtration time and periodic backwashing during filtration of the immersion type membrane. When the properties change, there is a problem that the constant ozone demand cannot be continuously satisfied because the ozone consumption rate changes irregularly due to the rapid reaction of the water quality factor and ozone of the influent.

On the other hand, as another prior art, Korean Patent Publication No. 2016-85982 discloses an invention entitled "Membrane Filtration Advanced Water Treatment System Using Water Head Tea", which will be described with reference to FIG. 5.

5 is a view schematically showing a membrane filtration advanced water purification apparatus using a head difference according to the prior art.

Referring to Figure 5, a membrane filtration advanced water purification apparatus using a head difference according to the prior art, the pre-treatment tank 51 for collecting untreated water; A membrane filtration tank 52 positioned to have a lower head than the head in the pretreatment tank 51; A separation membrane 53 immersed in the membrane filtration tank 52; A treatment tank 54 positioned to have a lower head than the head in the membrane filtration tank 52; A first siphon 60 in communication with the untreated water in the pretreatment tank 51 to reach a certain level and flow into the membrane filtration tank 52; And a second siphon 70 communicating with the treated water in the membrane filtration tank 52 filtered through the separation membrane 53 to flow into the treatment tank 54.

In the membrane filtration advanced water treatment apparatus according to the prior art, the pretreatment tank 51 is installed so that the head is higher than the membrane filtration tank 52, and the membrane filtration tank 52 is installed such that the head is higher than the treatment tank 54. In addition, the first siphon 60 communicates with the untreated water in the pre-treatment tank 51 to flow into the membrane filtration tank 52, and the second siphon 70 processes the treated water in the membrane filtration tank 52. ) By flowing to flow inside, it is possible to flow raw water and treated water in a natural flow manner by paralleling the principle of head difference and siphon, and as a result, there is no need for a pressure feeding facility for adjusting the flow and the amount of treated water and energy consumption. It is possible to minimize the installation space (area area) and significantly reduce installation and operation costs.

However, in the case of the advanced membrane filtration water treatment system according to the prior art, the raw water and the treated water are naturally flowed using the first siphon 60 and the second siphon 70 regardless of the water level of the membrane filtration tank 52. Because it flows, it is impossible to control the driving level of the siphon, and accordingly, there is a problem in that the operational efficiency of the membrane filtration advanced water treatment device is reduced.

Republic of Korea Patent No. 10-1786821 (application date: February 10, 2017), the name of the invention: "water treatment device of gravity driving method" Republic of Korea Patent No. 10-600567 (application date: March 16, 2006), the name of the invention: "Water treatment device integrating an immersion type membrane module in a fiber filter" Republic of Korea Patent No. 10-1526884 (application date: November 12, 2008), the name of the invention: "Water purification system using an immersion type membrane device" Republic of Korea Patent No. 10-1836073 (application date: September 1, 2015), the name of the invention: "Water treatment device using a flat-type ceramic filter" Republic of Korea Patent No. 10-1390747 (application date: April 18, 2012), the name of the invention: "The final effluent water reuse device using immersion hollow fiber type separation membrane" Republic of Korea Patent Publication No. 2016-85982 (published date: July 19, 2016), the name of the invention: "Membrane filtration advanced water purification device using a head tea"

The technical problem to be achieved by the present invention for solving the above-mentioned problems is to cope with droughts, to be used as living water, landscaping water, industrial water, etc. A siphon pipe is installed so that the storage tank and the lower storage tank have a head difference, but by adjusting the siphon driving water level in response to the water level of the lower storage tank, the siphon driving water level adjustment method can be smoothly supplied and processed by the target source water due to the siphon phenomenon. To provide an immersion-type water treatment and storage integrated system, and a method therefor.

Another technical problem to be achieved by the present invention, by forming the water treatment device using the immersion separation membrane and the bottom storage tank integrally, can simultaneously perform water treatment and storage of the target raw water, immersion-type water treatment and storage integrated type of siphon driving water level control method It is intended to provide a system and method.

Another technical problem to be achieved by the present invention, by controlling the flow rate change flow of the target water taken and delivered by the siphon pipe so that the bottom reservoir maintains a constant water level, physical cleaning of the immersion type separation membrane is possible, immersion type of siphon driving water level control method It is intended to provide a water treatment and storage integrated system and a method therefor.

As a means for achieving the above-described technical problem, the immersion-type water treatment and storage integrated system of the siphon driving water level control method according to the present invention includes: an upper storage tank for storing target water of rainwater, groundwater, surface water, or valley water; A lower storage tank installed below the upper storage tank to store target water supplied through a siphon pipe; A siphon pipe including an intake pipe outflow pipe and a discharge water discharge valve, and installed between the upper and lower reservoirs to supply target raw water stored in the upper reservoir to the lower reservoir by a siphon phenomenon; It is installed on the top of the siphon pipe, the air control valve for discharging the air in the siphon pipe to the outside so that the siphon pipe can be driven siphon; A water level meter installed on the lower storage tank to measure the water level of the lower storage tank; An immersion type separation membrane installed in the lower storage tank to treat the target raw water; A treated water tank for storing the treated water treated by the immersion type separation membrane in the lower storage tank; And a management module for setting and adjusting the siphon driving water level of the siphon pipe in response to the water level of the lower storage tank measured by the water gauge, and controlling the discharge of the effluent by driving the siphon pipe, but using the immersion type separation membrane. Characterized in that the water treatment device for treating the raw water and the bottom storage tank for storing the treated water are integrated.

The immersion type water treatment and storage integrated system of the siphon driving water level control method according to the present invention is installed between the lower storage tank and the treated water tank to discharge the treated water treated by the immersion type separation membrane in the lower storage tank to the treated water tank A water pipe may be additionally included, and the management module may control the discharge of treated water by opening and closing the treated water discharge valve installed on the treated water pipe.

Here, by controlling the flow rate change flow of the target water taken and delivered by the siphon pipe so that the lower storage tank maintains a constant water level, it is possible to physically clean the immersion-type separation membrane. Storage integrated system.

)은

로 주어지고, 여기서,

은 사이펀 구동력에 의한 사이펀 배관(130)의 방류 유속이고, 상단 저류지의 수면 높이(

)와 하단 저류조의 방류 위치 높이(

) 차에 의해 방류가 발생하며, 수위차에 비례하여 방류속도가 결정될 수 있다.Here, the flow rate that transmits the siphon driving force of the siphon pipe (

)silver

Is given by, where,

Is the discharge flow rate of the siphon pipe 130 by the siphon driving force, and the water surface height of the upper reservoir (

) And the height of the discharge location of the bottom storage tank (

) Discharge is generated by the car, and the discharge rate can be determined in proportion to the water level difference.

Here, the immersion-type separation membrane installed in the lower storage tank is formed of a microfiltration separation membrane module having a nominal pore diameter of 0.1 µm, and the microfiltration separation membrane module may be a hollow fiber-type precision filtration module or a flat-type precision filtration module.

Here, the hollow fiber-type microfiltration module includes a hollow fiber-type microfiltration membrane installed horizontally, and turbulence or vortex generated by the siphon pipe is discharged in the vertical direction of the micro-filtration microfiltration membrane.

Here, the flat-type microfiltration module includes a flat-type microfiltration membrane installed vertically, and turbulence or vortex generated by the siphon pipe is discharged in the horizontal direction of the flat-type microfiltration membrane.

Here, the management module, the bottom reservoir level check unit for checking the water level of the bottom reservoir measured by the water gauge; A siphon driving water level adjusting unit for setting and adjusting the driving water level of the siphon pipe in response to the water level of the lower storage tank; A control unit for controlling the driving of the siphon pipe according to the driving level adjusted by the siphon driving water level adjusting unit; A siphon pipe driving unit driving opening and closing of the air control valve and the discharge water discharge valve so that the siphon pipe is operated; And it may include an immersion separation membrane driving unit for driving so that the immersion separation membrane installed in the lower storage tank for water treatment.

On the other hand, as another means for achieving the above technical problem, the immersion-type water treatment and storage method of the siphon driving water level control method according to the present invention, a) set the siphon driving water level of the siphon pipe installed between the upper storage tank and the lower storage tank and Adjusting; b) checking whether or not the target raw water is supplied into the lower storage tank corresponding to the water level of the lower storage tank measured through the water level meter installed in the lower storage tank; c) opening the discharge water discharge valve installed on the outlet pipe of the siphon pipe, and opening the air control valve installed on the top of the siphon pipe to perform air venting; d) supplying target raw water from the upper storage tank to the lower storage tank by a siphon phenomenon; e) filtering the target raw water by a water level difference of a predetermined water level by driving the immersion type separation membrane in the lower storage tank; And f) opening the treated water discharge valve on the treated water pipe to store the treated water tank treated water, wherein a water treatment device for treating the target raw water using the immersion type separation membrane and a bottom for storing the treated water It is characterized in that the storage tank is integrated, and the siphon driving water level of the siphon pipe is set and adjusted in response to the water level of the lower storage tank measured by the water gauge.

According to the present invention, in order to cope with drought, siphon piping so that the upper reservoir and the lower reservoir have a head difference in a reservoir or reservoir that has collected rainwater, groundwater, surface water, or valley water so that it can be used as living water, landscaping water, industrial water, etc. By installing, but by adjusting the siphon driving water level in response to the water level in the lower storage tank, it is possible to smoothly supply and process the target raw water due to the siphon phenomenon.

According to the present invention, water treatment and storage of target raw water can be simultaneously performed by integrally forming a water treatment device using an immersion type separation membrane and a bottom storage tank.

According to the present invention, it is possible to physically clean the immersion-type separation membrane by controlling the flow rate change flow of the target water taken and delivered by the siphon pipe so that the lower storage tank maintains a constant water level.

1 is a view schematically showing a gravity-driven water treatment apparatus according to the prior art.
2 is a view schematically showing a water treatment device in which an immersion type separation membrane module is integrated in a fiber filter according to the prior art.
FIG. 3 is a view schematically showing a water treatment system using a water treatment device in which an immersion type separation membrane module is integrated in a fiber filter shown in FIG. 2.
4 is a view schematically showing a water purification system using an immersion type membrane device according to the prior art.
5 is a view schematically showing a membrane filtration advanced water purification apparatus using a head difference according to the prior art.
6 is a view schematically showing an immersion-type water treatment and storage integrated system of a siphon driving water level control method according to an embodiment of the present invention.
7 is a view for explaining a siphon pipe applied to the immersion-type water treatment and storage integrated system of the siphon driving water level control method according to an embodiment of the present invention.
8 is a configuration diagram specifically showing a management module of an immersion-type water treatment and storage integrated system of a siphon driving water level control method according to an embodiment of the present invention.
9 is a immersion-type water treatment of a siphon driving water level control method and a storage integrated system according to an embodiment of the present invention, which is filtered by a water level difference induced by a siphon without a separate vacuum suction pump as a bottom storage tank including an immersion type separation membrane. It is a figure showing that.
10 is an operation flow diagram of the immersion-type water treatment and storage method of the siphon driving water level control method according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part “includes” a certain component, this means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, terms such as “… unit” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

[Immersive water treatment and storage integrated system 100 with siphon driving water level control method]

 6 is a view schematically showing an immersion type water treatment and storage integrated system of a siphon driving water level control method according to an embodiment of the present invention, and FIG. 7 is a immersion type water treatment and storage integrated type of a siphon driving water level control method according to an embodiment of the present invention. It is a drawing to explain the siphon piping applied to the system.

Referring to Figure 6, the immersion-type water treatment and storage integrated system 100 of the siphon driving water level control method according to an embodiment of the present invention, the upper storage tank 110, the air conditioning valve 120, the siphon pipe 130, the lower It includes a storage tank 140, a water gauge 150, an immersion type separation membrane 160, a treated water tank 170, a treated water pipe 180, and a management module 190.

The upper reservoir 110 or reservoir stores target raw water, such as rainwater, groundwater, surface water, and valley water, wherein the target raw water is treated with water by the immersion type separation membrane 160 to cope with drought, and water for living, landscaping water, Used as industrial water. In addition, the upper storage tank 110 may primarily remove contaminants contained in rainwater, valley water, etc. collected from the outside with a filter such as a screen 111. Here, h1 represents the water level of the target source water in the upper storage tank 110. For example, before a drought occurs, rainwater or groundwater is primarily stored in the upper reservoir 110 from a water collecting surface such as a rooftop, roof surface, or green space during rainfall, or a separate inflow pipe from a reservoir where nearby surface water or valley water is collected. It may be stored in the connected upper storage tank (110).

The air control valve 120 is installed on the top of the siphon pipe 130, and discharges air in the siphon pipe 130 to the siphon pipe 130 so that the siphon drive.

The siphon pipe 130 includes a water intake pipe 131, an outflow pipe 132, and a discharge water discharge valve 133, and is installed between the upper storage tank 110 and the lower storage tank 140, so that the upper side by siphon phenomenon The target raw water stored in the storage tank 110 is supplied to the lower storage tank 140, and the driving level of the siphon pipe 130 is adjusted. Here, h2 represents the height of the body where the siphon pipe 130 is installed, and h3 represents the siphon driving water level adjusted between the lower end of the upper storage tank 110 and the lower storage tank 140. In addition, the discharge water discharge valve 133 may be an electronic solenoid opening / closing valve controlled by the management module 190, but is not limited thereto.

The lower storage tank 140 is installed below the upper storage tank 110 to store the target raw water supplied through the siphon pipe 130. At this time, the lower storage tank 140 has a structure capable of physical cleaning of the immersion type separation membrane 160 by controlling the flow rate change flow of the target raw water taken and delivered by the siphon pipe 130 to maintain a constant water level. Specifically, at the discharge point of the lower storage tank 140, turbulence is generated between the gaps of the immersion-type separation membrane 140 installed as a vertical module of the lower storage tank 140 to mitigate the concentration polarization on the surface of the separation membrane to prevent membrane contamination. It has a structure to mitigate the rapid reduction of the flux. Accordingly, in the case of the lower storage tank 140, while maintaining a constant water level by siphon driving, the immersion type separation membrane 160 can secure a certain amount of filtration, and at the same time, induce turbulence or vortex formation, causing turbidity to accumulate on the surface of the separation membrane. It is possible to mitigate flux reduction caused by concentration polarization by dissociating pollutants such as at a constant flow rate.

In addition, in the case of the bottom storage tank 140 in which the immersion-type separation membrane 160 is integrally installed, induces vortex formation in the inflow portion of the immersion-type separation membrane, and removes contaminants such as turbidity accumulated on the surface of the separation membrane at a constant flow rate, resulting in concentration polarization. It has a structure that induces a swirl flow to mitigate the flux reduction, in which case the floated flocs or particles can be discharged into a separate tube.

The water level meter 150 is installed on the lower storage tank 140 to measure the water level of the lower storage tank 140.

The immersion type separation membrane 160 is installed in the lower storage tank 140 to treat the target raw water. Specifically, the immersion type separation membrane 160, which is integrally installed at the bottom of the bottom storage tank 140 and driven in response to the water level, separates suspended substances, protozoa, bacteria, viruses, etc. into particle sizes according to the sieve principle. A fine filtration membrane with a separation diameter of about 0.1 µm is used. That is, the immersion type separation membrane 160 installed in the lower storage tank 140 is formed of a microfiltration separation membrane module having a nominal pore diameter of 0.1 µm, and the microfiltration separation membrane module may be a hollow fiber type precision filtration module or a plate type precision filtration module. At this time, the hollow fiber-type microfiltration module includes a hollow fiber-type microfiltration membrane that is horizontally installed, and turbulence or vortex generated by the siphon pipe 130 is discharged in the vertical direction of the hollow fiber-type microfiltration membrane. The flat-type microfiltration module includes a flat-type microfiltration membrane installed vertically, and turbulence or vortices generated by the siphon pipe 130 may be discharged in the horizontal direction of the flat-type microfiltration membrane.

The treated water tank 170 stores the treated water treated by the immersion type separation membrane 160 in the lower storage tank 140, and the treated water is used as living water, landscaping water, industrial water, etc. to cope with drought. .

The treated water pipe 180 is installed between the lower storage tank 140 and the treated water tank 170 to treat the treated water treated by the immersion type separation membrane 160 in the lower storage tank 140 to the treated water tank 170 To discharge. At this time, the treatment water discharge is controlled according to the opening and closing of the treatment water discharge valve 181 installed on the treatment water pipe 180, and the treatment water discharge valve 181 is an electronic type controlled by the management module 190 It may be a solenoid on-off valve.

The management module 190 drives the siphon pipe 130 in response to the water level of the lower reservoir 140 measured by the water gauge 150 to set and adjust the siphon driving water level of the siphon pipe 130 to discharge discharged water. In addition, the management module 190 may control the driving of the immersion type separation membrane 160 and control the discharge of treated water from the lower storage tank 140.

Accordingly, by inducing a siphon phenomenon, while maintaining a constant water level, the immersion type separation membrane 160 installed at the lower storage tank 140 under the internal pressure of the storage tank itself, without a separate vacuum pump, for example, a hollow fiber or flat type membrane The contaminants of the target raw water flowing through are removed, and the target raw water is treated.

In other words, the immersion-type separation membrane 160 installed in the lower storage tank 140 while maintaining a constant water level in the lower storage tank 140 by generating a siphon driving force due to a difference in water level between the lower storage tank 140 and the siphon pipe 130 connected to the lower storage tank 140 After passing through the microfiltration membrane and driving it by gravity or water level difference without a separate vacuum pump or external force, the treated water treated by the immersion type separation membrane 160 is supplied to the treated water tank 170 and stored. . Accordingly, the inflow water, which is the target raw water delivered by the siphon pipe 130, induces turbulence or vortex formation in the center of the vertical module that is the immersion type separation membrane 160, thereby contaminating contaminants such as turbidity accumulated on the surface of the immersion type separation membrane 160. By desorption at a constant flow rate, flux reduction due to concentration polarization can be alleviated.

Specifically, the immersion-type water treatment and storage integrated system 100 of the siphon driving water level control method according to an embodiment of the present invention directly directs source water that can induce an upper siphon phenomenon, for example, rainwater, groundwater, or valley water. When utilized as a storage facility or a separate storage facility, the intake pipe 131 capable of transferring the target raw water by the siphon pipe 130 is connected, and the discharged water is discharged to the lower storage tank 140 to induce a siphon phenomenon. The pipe 132 is always immersed in the water inside.

This siphon phenomenon occurs when the upper intake pipe 131 and the lower effluent outlet pipe 132 are filled with water, and the outside air is blocked, at this time, through the separate pump and pump inlet pipe Fill (132) with water to maintain a vacuum. After the siphon induction, if the lower storage tank 140 is filled with a target level or higher through the upper water intake pipe 131, the external air is induced to suppress the siphon induction, to induce a constant water level, and to be immersed in the lower storage tank 140. The target raw water is treated by 160. At this time, when the target raw water is filtered by the immersion type separation membrane 160, a strong flow phenomenon of the bottom storage tank 140 by a siphon can be physically cleaned by removing contaminants on the surface of the immersion type separation membrane 160.

In the siphon pipe 130 by the siphon driving force, the flow rate on the siphon pipe 130 discharged to the upper storage tank 110 or the reservoir surface with the difference in water level and the lower storage tank 140 or the immersion type separation membrane 160 is as follows. It can be expressed as Equation 1 and Equation 2.

Specifically, assuming that there is no loss of the pipeline, the model related to the flow rate of the siphon pipe 130 is described by the Bernoulli equation as in Equation 1 below.

,

,

은 상단 저류조(110) 또는 저수지 수면위의 위치 지점에서의 압력, 속도 및 지면 높이를 각각 나타내며, 또한,

,

및

은 사이펀 배관(130) 하단부의 방류되는 지점에서의 압력, 속도 및 지면 높이를 각각 나타내며, 또한,

는 물의 비중을 나타내고,

는 중력가속도를 나타낸다.here,

,

,

Denotes the pressure, speed, and ground height at the location of the upper reservoir 110 or above the reservoir surface, and

,

And

Represents the pressure, speed, and ground height at the discharge point of the lower portion of the siphon pipe 130, and

Denotes the specific gravity of water,

Indicates the gravitational acceleration.

Therefore, when discharge occurs to the lower storage tank 140 including the water treatment device by the siphon pipe 130, the water in the upper storage tank 110 or the reservoir is reduced, but the amount discharged for a certain period of time is the total storage tank amount or the reservoir. Since the scale of the is larger, the water level decrease in the upper reservoir 110 or reservoir for a short time is very small, and the flow rate of the upper reservoir 110 or reservoir can be neglected.

However, when the facility size of the upper storage tank 110 is not large, the amount of discharge through the particle diameter of the siphon pipe 130 and the valve control is adjusted. In this case, in the case of a water treatment facility such as an immersion type separation membrane 160, it is filtered in consideration of the amount of filtered water in the lower storage tank 140 because it is filtered by a constant water level difference. Particularly, in the case of a reservoir, since the water surface and the discharged position are open spaces and the pressure is the same as atmospheric pressure, the equation 1 can be briefly summarized as in equation 2.

은 사이펀 구동력에 의한 방류 유속이고, 저수지 수면 높이(

)와 방류 위치 높이(

) 차에 의해 방류가 발생하는 것을 의미한다. 즉, 수위차에 비례하여 방류속도가 결정되는 것을 의미한다.here,

Is the discharge flow rate due to the siphon driving force, and the reservoir surface height (

) And discharge position height (

) It means that discharge occurs by the car. That is, it means that the discharge rate is determined in proportion to the water level difference.

Accordingly, the immersion-type water treatment and storage integrated system 100 of the siphon driving water level control method according to an embodiment of the present invention collects rainwater, groundwater, surface water, or valley water, and uses it as living water, landscaping water, industrial water, etc. In a small-scale storage tank in an island region, the immersion type separation membrane 160 whose water level can be adjusted by a siphon phenomenon is integrally installed at the bottom of the lower storage tank 140 to maintain the driving level due to the siphon phenomenon and to the immersion type separation membrane 160. Can be filtered.

In addition, the immersion-type water treatment and storage integrated system 100 of the siphon driving water level control method according to an embodiment of the present invention, when the source water of the reservoir or the reservoir trapped in the artificial structures such as dams as the influent, the water level difference than the water treatment facility Even in a high case, by controlling the water level of the lower storage tank 140 including the immersion type separation membrane 160 by using the flow velocity in the pipe by the siphon as a driving force, it can be filtered without a separate transfer pump.

In addition, the immersion-type water treatment and storage integrated system of the siphon driving water level control method according to an embodiment of the present invention, for example, when using rainwater as a target raw water, the storage tank is a water treatment device immersion type separation membrane 160 is integrally included When using lake water or valley water from a building with a water level difference, or a reservoir with artificial structures such as a dam, by installing a siphon pipe 130 that induces a siphon phenomenon, it is high by gravity without pump or external force. It takes advantage of the phenomenon that the enemies of a place flow to a low place even after passing through a higher place. That is, the target raw water is transferred from the upper storage tank 110 and the lower storage tank 140, which can use the siphon phenomenon, from the upper to the lower, by the siphon phenomenon, and the lower storage tank 140 is always immersed by maintaining a constant water level. The separation membrane 160 may filter the target raw water at an internal pressure or level difference without a separate vacuum pump.

In addition, by controlling the flow rate change flow transmitted by the siphon pipe 130 so that the lower storage tank 140 maintains a constant water level, physical cleaning of the immersion type separation membrane 160 is possible, so that a separate high pressure pump for driving the existing separation membrane is provided. Does not need.

On the other hand, Figure 8 is a configuration diagram specifically showing the management module of the immersion-type water treatment and storage integrated system of the siphon driving water level control method according to an embodiment of the present invention.

Referring to FIG. 8, the management module 190 of the immersion-type water treatment and storage integrated system of the siphon driving water level control method according to an embodiment of the present invention includes a lower storage tank water level checking unit 191, a siphon driving water level adjusting unit 192, The control unit 193 may include a siphon pipe driving unit 194 and an immersion type membrane driving unit 195.

The lower reservoir level check unit 191 of the management module 190 checks the water level of the lower reservoir 140 measured by the water level meter 150.

The siphon driving water level control unit 192 of the management module 190 sets and adjusts the driving water level of the siphon pipe 130 in response to the water level of the lower storage tank 140.

The control unit 193 of the management module 190 controls the driving of the siphon pipe 130 according to the driving level adjusted by the siphon driving water level adjusting unit 192.

The siphon pipe driving unit 194 of the management module 190 drives opening and closing of the air control valve 120 and the discharge water discharge valve 133 so that the siphon pipe 130 operates.

The immersion separation membrane driving unit 195 of the management module 190 is driven so that the immersion separation membrane 160 installed in the lower storage tank 140 can perform water treatment.

On the other hand, Figure 9 is a siphon-driven water level control method according to an embodiment of the present invention in the immersion-type water treatment and storage integrated system to the bottom storage tank containing the immersion-type separation membrane by a water level difference induced by siphon without a separate vacuum suction pump It is a figure showing what is filtered.

As shown in Figure 9, in the immersion-type water treatment and storage integrated system 100 of the siphon driving water level control method according to an embodiment of the present invention, the lower storage tank 140 containing the immersion type separation membrane 160 is a separate vacuum suction The target raw water induced by the siphon phenomenon of the siphon pipe 130 can be filtered and treated by water without a pump, and at this time, a water treatment device using the immersion type separation membrane 160 is disposed in the lower storage tank 140. By being integrated, it is possible to simultaneously perform water treatment and storage of the target raw water.

Accordingly, according to an embodiment of the present invention, in the case of a small-scale water supply facility or a village waterworks in an island region, rainwater, groundwater, surface water, or valley water can be supplied as living water, landscaping water, or agricultural water in response to drought. In other words, in the event of a disaster, by supplying emergency water to the immersion-type water treatment and storage integrated system of the siphon driving water level control method by the siphon piping 130 itself, without additional power, it is possible to supply safe and stable water tailored to the characteristics of the site while minimizing costs. Can be.

[Immersive water treatment and storage method of siphon driving water level control method]

10 is an operation flow diagram of the immersion-type water treatment and storage method of the siphon driving water level control method according to an embodiment of the present invention.

Referring to Figure 10, the immersion-type water treatment and storage method of the siphon driving water level control method according to an embodiment of the present invention, first, siphon driving of the siphon pipe 130 installed between the upper storage tank 110 and the lower storage tank 140 Set and adjust the water level (S110).

Next, it is determined whether or not to supply the target raw water to the lower storage tank 140 in correspondence with the water level of the lower storage tank 140 measured through the water level meter 150 installed in the lower storage tank 140 (S120).

Next, opening the discharge water discharge valve 133 installed on the outlet pipe 132 of the siphon pipe 130, and opening the air control valve 120 installed on the top of the siphon pipe 130 to perform air venting (S130).

)은

로 주어지고, 여기서,

은 사이펀 구동력에 의한 사이펀 배관(130)의 방류 유속이고, 상단 저류지(110)의 수면 높이(

)와 하단 저류조(140)의 방류 위치 높이(

) 차에 의해 방류가 발생하며, 수위차에 비례하여 방류속도가 결정된다.Next, the target raw water is supplied from the upper storage tank 110 to the lower storage tank 140 by a siphon phenomenon (S140). At this time, the flow rate (transmitting the siphon driving force of the siphon pipe 130)

)silver

Is given by, where,

Is the discharge flow rate of the siphon pipe 130 by the siphon driving force, and the water surface height of the upper reservoir 110 (

) And the discharge position height of the lower storage tank 140 (

) Discharge is generated by the car, and the discharge rate is determined in proportion to the water level difference.

Next, by driving the immersion type separation membrane 160 in the lower storage tank 140, the target raw water is filtered and treated by water head difference at a certain level (S150). Specifically, when the discharge to the lower reservoir 140 by the siphon pipe 130 occurs, the water in the upper reservoir 110 or reservoir is reduced, but the amount discharged for a certain period of time is the total amount of reservoir or reservoir Since the scale is larger, the water level decrease in the upper reservoir 110 or reservoir for a short period of time is very small, so the reservoir or reservoir sleep speed can be neglected. However, when the size of the facility of the upper storage tank 110 is not large, the discharge amount can be adjusted by adjusting the particle diameter and the valve of the siphon pipe 130. In this case, since the immersion type separation membrane 160 is filtered by a constant water level difference, it is preferable to discharge the water in consideration of the filtered water amount of the lower storage tank 140.

Next, the treated water discharge valve 181 on the treated water pipe 180 is opened to store the treated water in the treated water tank 170 (S160).

At this time, a water treatment device for water-processing the target raw water using the immersion type separation membrane 160 and a bottom storage tank 140 for storing the water-treated water are integrated, and the bottom storage tank 140 measured by the water level meter 150 is integrated. The siphon driving water level of the siphon pipe 130 may be set and adjusted in response to the water level.

After all, according to an embodiment of the present invention, the upper reservoir and the lower reservoir in the reservoir or reservoir that collected rainwater, groundwater, surface water, or valley water so that it can be used as living water, landscaping water, industrial water, etc. in response to drought Siphon piping is installed to have a difference, but by controlling the siphon driving water level in response to the water level in the lower storage tank, the target raw water due to the siphon phenomenon can be smoothly supplied and processed. In addition, the water treatment device and the bottom using an immersion separation membrane By forming the storage tank integrally, water treatment and storage of the target raw water can be performed simultaneously, and also, by controlling the flow rate change flow of the target raw water taken and delivered by the siphon pipe so that the lower storage tank maintains a constant water level, the physical of the immersion type separation membrane Cleaning becomes possible.

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

100: Immersion type water treatment and storage integrated system
110: upper storage tank (or reservoir) 120: air control valve
130: siphon pipe 140: bottom storage tank
150: water gauge 160: immersion type separation membrane
170: treated water tank 180: treated water piping
190: management module 111: screen (filter)
131: intake piping 132: outflow piping
133: discharge water discharge valve 181: treated water discharge valve
191: lower reservoir level check unit 192: siphon drive water level control unit
193: control unit 194: siphon pipe driving unit
195: immersion type membrane driving unit

Claims (14)

An upper storage tank 110 for storing target water of rainwater, groundwater, surface water, or valley water;
A lower storage tank 140 installed at a lower portion of the upper storage tank 110 to store the target raw water supplied through the siphon pipe 130;
It includes a water intake pipe 131, an outflow pipe 132 and a discharge water discharge valve 133, and is installed between the upper storage tank 110 and the lower storage tank 140 and stored in the upper storage tank 110 by a siphon phenomenon. Siphon pipe 130 for supplying the target raw water to the lower storage tank 140;
An air control valve 120 which is installed on the siphon pipe 130 and discharges air in the siphon pipe 130 to the siphon pipe 130 so as to be siphon driven;
A water level meter 150 installed on the lower storage tank 140 to measure the water level of the lower storage tank 140;
An immersion type separation membrane 160 installed in the lower storage tank 140 to treat the target raw water;
A treated water tank 170 for storing the treated water treated by the immersion type separation membrane 160 in the lower storage tank 140; And
Management module for setting and adjusting the siphon driving water level of the siphon pipe 130 in response to the water level of the lower storage tank 140 measured by the water gauge 150, and controlling the discharge of discharged water by driving the siphon pipe 130 (190) including,
An immersion-type water treatment and storage integrated system of a siphon driving water level control method, characterized in that a water treatment device for water-processing the target raw water using the immersion type separation membrane 160 and a lower storage tank 140 for storing the water-treated water are integrated. According to claim 1,
A treatment water pipe installed between the lower storage tank 140 and the treated water tank 170 to discharge the treated water treated by the immersion type separation membrane 160 in the lower storage tank 140 to the treated water tank 170 ( 180), the management module 190 is siphon driving water level control method characterized in that to control the discharge of treated water by opening and closing the treated water discharge valve 181 installed on the treated water pipe 180 Immersion type water treatment and storage integrated system. According to claim 1,
Siphon drive characterized in that physical cleaning of the immersion type separation membrane (160) is possible by controlling the flow rate change flow of the target water taken and delivered by the siphon pipe (130) so that the lower storage tank (140) maintains a constant water level. Water level control type immersion type water treatment and storage integrated system. According to claim 1,
Flow rate (transmitting the siphon driving force of the siphon pipe 130)

)silver

Is given by, where,

Is the discharge flow rate of the siphon pipe 130 by the siphon driving force, and the water surface height of the upper reservoir 110 (

) And the discharge position height of the lower storage tank 140 (

) Discharge is generated by the car, and the discharge speed is determined in proportion to the water level difference. According to claim 1,
The immersion type separation membrane 160 installed in the lower storage tank 140 is formed of a precision filtration separation membrane module having a nominal pore diameter of 0.1 µm, and the precision filtration separation membrane module is a hollow fiber type precision filtration module or a flat type precision filtration module. Siphon driven water level immersion type water treatment and storage integrated system. The method of claim 5,
The hollow fiber-type microfiltration module includes a hollow fiber-type microfiltration membrane installed horizontally, and turbulence or vortex generated by the siphon pipe 130 is discharged in the vertical direction of the hollow fiber-type microfiltration membrane. Water level control type immersion type water treatment and storage integrated system. The method of claim 5,
The flat-type microfiltration module includes a flat-type microfiltration membrane installed vertically, and turbulence or vortices generated by the siphon pipe 130 are discharged in the horizontal direction of the flat-type microfiltration membrane. Water level control type immersion type water treatment and storage integrated system. The method of claim 1, wherein the management module 190,
A lower reservoir level check unit 191 for checking the water level of the lower reservoir 140 measured by the water level meter 150;
A siphon driving water level control unit 192 for setting and adjusting the driving water level of the siphon pipe 130 in correspondence with the water level of the lower storage tank 140;
A control unit 193 for controlling the driving of the siphon pipe 130 according to the driving level adjusted by the siphon driving water level adjusting unit 192;
A siphon pipe driver 194 for driving opening and closing of the air control valve 120 and the discharge water discharge valve 133 so that the siphon pipe 130 operates; And
An immersion type water treatment and storage integrated system of a siphon driving water level control method including an immersion type separation membrane driving unit 195 for driving the immersion type separation membrane 160 installed in the lower storage tank 140 for water treatment. a) setting and adjusting the siphon driving water level of the siphon pipe 130 installed between the upper storage tank 110 and the lower storage tank 140;
b) confirming whether to supply target raw water into the lower storage tank 140 in correspondence with the water level of the lower storage tank 140 measured through the water level meter 150 installed in the lower storage tank 140;
c) opening the effluent discharge valve 133 installed on the outlet pipe 132 of the siphon pipe 130, and opening the air control valve 120 installed on the top of the siphon pipe 130 to perform air venting. step;
d) supplying the target raw water from the upper storage tank 110 to the lower storage tank 140 by a siphon phenomenon;
e) driving the immersion type separation membrane 160 in the lower storage tank 140 to filter and treat target raw water by a head difference of a certain level; And
f) opening the treated water discharge valve 181 on the treated water piping 180 and storing the treated water in the treated water tank 170,
A water treatment device for water-processing the target raw water using the immersion type separation membrane 160 and a bottom storage tank 140 for storing the water-treated water are integrated, and at the water level of the bottom storage tank 140 measured by the water gauge 150. Correspondingly, the siphon driving water level control method of the immersion type water treatment and storage method characterized in that the siphon driving water level of the siphon pipe 130 is set and adjusted. The method of claim 9,
Siphon drive characterized in that physical cleaning of the immersion type separation membrane (160) is possible by controlling the flow rate change flow of the target water taken and delivered by the siphon pipe (130) so that the lower storage tank (140) maintains a constant water level. Immersion type water treatment and storage method with water level control method. The method of claim 9,
Flow rate (transmitting the siphon driving force of the siphon pipe 130)

)silver

Is given by, where,

Is the discharge flow rate of the siphon pipe 130 by the siphon driving force, and the water surface height of the upper reservoir 110 (

) And the discharge position height of the lower storage tank 140 (

) Discharge is generated by the car, and the discharge speed is determined in proportion to the water level difference. The method of claim 9,
The immersion type separation membrane 160 installed in the lower storage tank 140 is formed of a precision filtration separation membrane module having a nominal pore diameter of 0.1 µm, and the precision filtration separation membrane module is a hollow fiber type precision filtration module or a flat type precision filtration module. Submerged water treatment and storage method with siphon driving water level control method. The method of claim 12,
The hollow fiber-type microfiltration module includes a hollow fiber-type microfiltration membrane installed horizontally, and turbulence or vortex generated by the siphon pipe 130 is discharged in the vertical direction of the hollow fiber-type microfiltration membrane. Immersion type water treatment and storage method with water level control method. The method of claim 12,
The flat-type microfiltration module includes a flat-type microfiltration membrane installed vertically, and turbulence or vortices generated by the siphon pipe 130 are discharged in the horizontal direction of the flat-type microfiltration membrane. Immersion type water treatment and storage method with water level control method.

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