KR102144059B1 - Submerged water treatment and water reservoir system for adjusting siphon driving water level - Google Patents

Abstract

Siphon piping is installed so that the upper and lower reservoirs have a head difference in a reservoir or reservoir that collects rainwater, groundwater, surface water, or valley water so that it can be used as living water, landscaping water, and industrial water in response to drought. By adjusting the siphon driving water level in response to the water level of the storage tank, it is possible to smoothly supply and treat the target raw water due to the siphon phenomenon.In addition, by forming a water treatment device using an immersion-type separator and a lower storage tank integrally, water treatment of the target raw water And storage can be performed at the same time, and by controlling the flow rate change flow of the target raw water collected and delivered by the siphon pipe so that the lower storage tank maintains a constant water level, physical cleaning of the submerged separator is possible. Submerged water treatment and storage systems and methods are provided.

Description

Submerged water treatment and storage integrated system of siphon driving water level control method, and its method {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 a reservoir collecting rainwater, groundwater, surface water or valley water, etc., so that it can be used as living water, landscaping water, industrial water, etc. in response to drought. , 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 separator and controlling the driving water level of a siphon pipe.

In general, the area surrounded by the sea on four sides at high tide is called Island. When islands are classified according to area, most of the islands in Korea belong to very small islands with an area of 100㎢ or less. These very small islands have poor river development, making it difficult to secure water sources, and are vulnerable to disasters such as typhoons and drought due to geographical conditions.

Domestic islands mainly use small-scale water supply facilities, pipelines and ship transport, and rainwater collection facilities to supply water for daily use. Also, only 29% of the residents are receiving water supply, so drinking water regularly even in short-term droughts. I am having a hard time being exhausted.

In particular, some islands transport water from nearby land and other islands to the water supply line, but the number of water supply lines is generally insufficient and the transport distance is long, so water supply is limited once every 15 to 20 days. In addition, many islands use seawater desalination facilities to supply water, but these seawater desalination facilities have a high production cost and difficult maintenance, so the facility utilization rate is often low, and salty water is supplied as it is in some regions. There are cases. In addition, when such a seawater desalination facility is deteriorated, groundwater is used as water through the government office in each region.

Meanwhile, a stable water supply is being promoted through a drinking water source development project in islands, but a problem such as a limited water supply or a loss of function of existing water supply facilities has occurred due to the occurrence of extreme drought due to recent climate change. For example, in existing water supply facilities using rainwater, collection facilities, treatment facilities, and water supply facilities are separated, and various control panels such as filtration facilities driven by separate pressure pumps are installed. It has been concentrated in medium and large-scale facilities with

In particular, in the case of a water treatment system using a separation membrane, a separation membrane and a module were used without a separate structural change, and a pressurized or vacuum suction pump was required at the front or rear end of the separation membrane to drive pressure. Typically, in a water treatment system using a separation membrane, power consumption of 0.1 to 0.2 ㎾h per ton occurs, so a separate power supply is required in a small-scale water treatment facility.

On the other hand, in a water purification plant that uses lake water in an urban area or surface water in a reservoir as inflow water, when introducing a separation membrane technology into a facility that supplies water through a separate water treatment device such as mixing, coagulation, sedimentation, sand filtration, raw water supply, pump , Membrane module, washing, piping and control facilities, etc., in this case, the type of membrane, membrane filtration area, membrane filtration flow rate, membrane filtration recovery rate, etc. should consider the quality of raw water and filtered water quality standards and the size of the facility. In addition, discharge water treatment facilities should be installed if necessary, and separate pre-treatment facilities and post-treatment facilities are installed to protect the membrane module and improve the quality of filtered water. Membrane filtration technology, which has recently emerged, is improving processes in the complete removal of chlorine-resistant protozoa, system compaction, operation automation, and energy saving.

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

1 is a diagram schematically showing a water treatment apparatus of a gravity driving method according to the prior art.

Referring to FIG. 1, a water treatment apparatus of a gravity-driven method according to the related art includes an influent pipe 11; A primary storage tank 13 through which water flows through the influent pipe 11; A screen filter 14 for removing impurities from water stored in the primary storage tank 13; A secondary storage tank 15 in which water that has passed through the screen filter 14 is stored; A flat plate type ultrafiltration membrane 16 provided in the secondary storage tank 15; A third storage tank 18 in which water passing through the ultrafiltration membrane 16 is stored; And an effluent pipe 19 for discharging water from the third storage tank 18, and the first storage tank 13 and the second storage tank 15 are integrally formed, and can be applied to a small-scale water treatment apparatus.

In the water treatment apparatus of the gravity driven method according to the prior art, the minimum head height d1 of the first storage tank 13 and the second storage tank 15 is proposed to be 0.5 to 2.0 m, and in particular, the first storage tank 13 ), a screen filter 14 composed of a general filter material that can be easily purchased, such as a granule-type circular filter material made of polypropylene or sand, is used. In addition, in the secondary storage tank 15, an immersion-type flat ultrafiltration membrane 16 is maintained in a vertical shape, but the differential pressure before and after the separation membrane is maintained at 50-100 mbar. In addition, the third storage tank 18 at the bottom is composed of a storage tank in which the final treated water is stored.

In the case of a water treatment device of a gravity driven method according to the prior art, rainwater, surface water, gray water, etc. can be purified using a porous separator in a gravity driven method without requiring a mechanical pump or a high water head difference.

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

On the other hand, as another prior art, Korean Patent No. 10-600567 discloses an invention entitled "a water treatment device in which an immersion type separator module is integrated 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 in which an immersion-type separator module is integrated in a fiber filter according to the prior art, and FIG. 3 is a water treatment system using a water treatment device in which an immersion-type separator module is integrated in the fiber filter shown in FIG. It is a diagram schematically showing.

As shown in FIG. 2, a water treatment device in which an immersion-type separator module is integrated in a fiber filter according to the prior art is disposed in the 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 and secondly filtering the water to be treated by the fiber filter 22; And a diffuser installed below the integrated water treatment device 21 and the immersion-type separator module 23, respectively, to supply air during backwashing of the fiber filter 22 and the immersion-type separator module 23, 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 tank 33, a membrane concentrated water discharge tank 34 and a separation membrane treatment tank 35 through respective valves. ).

As shown in Figure 3, the water treatment system using a water treatment device in which an immersion-type separator module is integrated in a fiber filter according to the prior art is a screen 41, a raw water collecting tank 31, a raw water supply pump 43, and cohesive maturation. And a raw water conditioning 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 tank 35, and the integrated water treatment device 21 It consists of a filter 22 and a separator module 23.

According to the water treatment device in which the immersion-type separator module is integrated in the conventional fiber filter, by combining the fiber filter and the immersion-type separator module, in the state of maintaining the membrane filtration function much better than the conventional sand filter paper in terms of treated water quality. When using an existing separator, not only can the operating cost be drastically reduced, but the size of the entire process can be reduced and manufacturing costs can be reduced.

However, in the case of a water treatment device in which an immersion-type separator module is integrated in a conventional fiber filter, a hollow fiber-type microfiltration or ultrafiltration is used as the immersion-type separator module 23, but the external fiber filter 22 and the internal Since the separation membrane's filtration speed and backwashing timing and cycle are different depending on the influent concentration, it is necessary to adjust the raw water condition by adding separate powdered activated carbon and a coagulant to the raw water control tank 42, and a separate pressurized/suction pump is required. , In addition, there is a problem that the filtration time is irregularly operated depending on the properties and flow rate of the influent water.

On the other hand, as another prior art, Korean Patent No. 10-1526884 discloses an invention entitled "Water treatment system using an immersion type separator", which will be described with reference to FIG. 4.

4 is a diagram schematically showing a water treatment system using an immersion type separator according to the prior art.

Referring to FIG. 4, a water treatment system using an immersion-type separator device according to the prior art includes a blending and agglomeration process of blending a flocculant into influent water to agglomerate; A sedimentation step of sedimenting the coagulation treated water by the mixing and coagulation process through the swash plate settling pond in the settling tank equipped with the swash plate settling pond; It includes a separation membrane filtration process in which the precipitated water by the precipitation process is filtered by a hollow fiber membrane of an immersion type separation membrane device in a separation membrane tank equipped with an immersion type separation membrane device.

According to the water treatment system using the immersion-type separator device according to the prior art, the existing rectangular settling basin was improved to a swash plate settling basin to reduce the residence time required for sedimentation, and a separate membrane filtration tank and an ozone reactor were installed in the existing settling pond.

However, in the case of a water treatment system using an immersion-type separator device according to the prior art, there is a problem that raw water is not intermittently supplied to the ozone facility, which is a subsequent process due to filtration time and periodic backwashing during filtration of the immersion-type separator. When the properties are changed, there is a problem that the ozone consumption rate is irregularly changed due to the rapid reaction of the influent water quality factor and ozone, so that a certain ozone demand cannot be continuously satisfied.

On the other hand, as another prior art, Korean Patent Application Publication No. 2016-85982 discloses an invention entitled "membrane filtration advanced water treatment apparatus using a head difference", which will be described with reference to FIG. 5.

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

5, a membrane filtration advanced water treatment apparatus using a head difference according to the prior art includes: a pretreatment tank 51 in which untreated water collects; A membrane filtration tank 52 positioned to have a water head lower than that in the pretreatment tank 51; A separation membrane 53 immersed in the membrane filtration tank 52; A treatment water tank 54 positioned to have a water head lower than that in the membrane filtration tank 52; A first siphon 60 communicating so that the untreated water in the pretreatment tank 51 reaches a certain level and flows into the membrane filtration tank 52; And a second siphon 70 communicating so that the treated water in the membrane filtration tank 52 filtered through the separation membrane 53 flows into the treatment water tank 54.

The membrane filtration advanced water treatment system according to the prior art is installed so that the pretreatment tank 51 is positioned higher than the membrane filtration tank 52, and the membrane filtration tank 52 is installed so that the water head is higher than the treatment tank 54 In addition, the first siphon 60 communicates so that the untreated water in the pretreatment tank 51 flows into the membrane filtration tank 52, and the second siphon 70 transfers the treated water in the membrane filtration tank 52 to the treatment tank 54 ), it is possible to flow the raw water and treated water in a natural flow manner by paralleling the principle of head difference and siphon by communicating so that it flows into the inside, and this eliminates the need for a pumping facility for adjusting the flow of raw water and treated water and the amount of treated water. Installation space (site area) can be minimized and installation and operation costs can be greatly reduced.

However, in the case of the membrane filtration advanced water treatment device according to the prior art, the raw water and treated water in a natural flow manner using the first siphon 60 and the second siphon 70 regardless of the water level of the membrane filtration tank 52. There is a problem in that the operating efficiency of the membrane filtration advanced water treatment system is deteriorated accordingly, because it is not possible to adjust the driving water level of the siphon.

Republic of Korea Patent No. 10-1786821 (filing date: February 10, 2017), title of invention: "Gravity driven water treatment device" Republic of Korea Patent No. 10-600567 (application date: March 16, 2006), the name of the invention: "Water treatment device incorporating an immersion type separator module in a fiber filter" Republic of Korea Patent No. 10-1526884 (filing date: November 12, 2008), title of invention: "Water treatment system using an immersion type membrane device" Republic of Korea Patent No. 10-1836073 (filing date: September 1, 2015), title of the invention: "Water treatment device using a flat tubular ceramic filter" Republic of Korea Patent Registration No. 10-1390747 (filing date: April 18, 2012), title of invention: "Final effluent reuse device of water purification plant using submerged hollow fiber type membrane" Republic of Korea Patent Publication No. 2016-85982 (published date: July 19, 2016), title of the invention: "membrane filtration advanced water treatment apparatus using a head difference"

The technical problem to be achieved by the present invention for solving the above-described problem is to cope with drought and to use it as living water, landscaping water, industrial water, etc., in a storage tank or reservoir collecting rainwater, groundwater, surface water or valley water, etc. Siphon driving water level control method that can smoothly supply and treat target raw water by siphoning by installing a siphon pipe so that the storage tank and the lower storage tank have a water head difference, and by adjusting the siphon driving water level in response to the water level of the lower storage tank It is to provide an integrated system for submerged water treatment and storage of, and a method thereof.

Another technical problem to be achieved by the present invention is an immersion-type water treatment and storage integrated system of a siphon-driven water level control method that can simultaneously perform water treatment and storage of target raw water by integrally forming a water treatment device using an immersion-type separator and a lower storage tank. , And to provide a method thereof.

Another technical problem to be achieved by the present invention is to control the flow rate change flow of the target raw water taken in and delivered by the siphon pipe so that the lower storage tank maintains a constant water level, thereby enabling physical cleaning of the submerged separator. It is to provide an integrated submerged water treatment and storage system, and a method thereof.

As a means for achieving the above-described technical problem, the integrated system for submerged water treatment and storage of a siphon driving water level control method according to the present invention comprises: an upper storage tank for storing target raw water of rainwater, groundwater, surface water or valley water; A lower storage tank installed below the upper storage tank to store target raw water supplied through a siphon pipe; A siphon pipe including an intake pipe outlet pipe and a discharge water discharge valve, and installed between the upper storage tank and the lower storage tank to supply target raw water stored in the upper storage tank to the lower storage tank by a siphon phenomenon; An air control valve installed on an upper end of the siphon pipe and discharging air in the siphon pipe to the outside so that the siphon pipe may be siphon driven; 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 treated water treated by the submerged separator in the lower storage tank; And a management module that sets and adjusts the siphon driving water level of the siphon pipe in response to the water level of the lower storage tank measured by the water level meter, and controls the discharge of effluent water by driving the siphon pipe, wherein the target using the submerged separator It is characterized in that a water treatment device for water treatment of raw water and the lower storage tank are integrated.

The submerged 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 submerged separation membrane in the lower storage tank to the treated water tank A water pipe is additionally included, and the management module may control discharge of treated water by opening and closing a treatment water discharge valve installed on the treated water pipe.

Here, the immersion type water treatment of the siphon driving water level control method, characterized in that the immersion type separation membrane can be physically cleaned by controlling the flow rate change flow of the target raw water taken in and delivered by the siphon pipe so that the lower storage tank maintains a constant water level. Integrated storage system.

)은

로 주어지고, 여기서,

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

)와 하단 저류조의 방류 위치 높이(

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

)silver

Given by, where,

Is the discharge flow rate of the siphon pipe 130 by the siphon driving force, and the water level of the upper storage tank (

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

) Discharge occurs due to the difference, and the discharge speed can be determined in proportion to the difference in water level.

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

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

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

Here, the management module includes: a lower storage tank water level checking unit for checking the water level of the lower storage tank measured by the water level meter; 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 driving of the siphon pipe according to the driving water level adjusted by the siphon driving water level adjusting unit; A siphon pipe driving unit for opening and closing the air control valve and the effluent discharge valve to operate the siphon pipe; And an immersion-type separation membrane driving unit that drives the immersion-type separation membrane installed in the lower storage tank to treat water.

Meanwhile, as another means for achieving the above-described technical problem, the submerged water treatment and storage method of the siphon driving water level control method according to the present invention includes: a) setting 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 to supply target raw water into the lower storage tank in response to the water level of the lower storage tank measured through a water level gauge installed in the lower storage tank; c) opening the effluent discharge valve installed on the outlet pipe of the siphon pipe and opening the air control valve installed at the upper end of the siphon pipe to perform an air vent; d) supplying target raw water from the upper storage tank to the lower storage tank by siphoning; e) filtration and water treatment of the target raw water by driving the immersion-type separation membrane in the lower storage tank by a water head difference of a predetermined level; And f) opening the treated water discharge valve on the treated water pipe to store the treated water in the treated water tank, wherein the water treatment device for water treatment of the target raw water using the immersion type separator and the lower storage tank are integrated, and the water level gauge It characterized in that 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 at.

According to the present invention, siphon piping so that the upper reservoir and the lower reservoir have a head difference in a reservoir or reservoir that collects 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. However, by adjusting the siphon driving water level corresponding to the water level of the lower storage tank, it is possible to smoothly supply and treat the target raw water due to the siphon phenomenon.

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

According to the present invention, physical cleaning of the immersion-type separator is possible by controlling the flow rate change flow of the target raw water taken in by a siphon pipe and transferred so that the lower storage tank maintains a constant water level.

1 is a diagram schematically showing a water treatment apparatus of a gravity driving method according to the prior art.
2 is a view schematically showing a water treatment apparatus in which an immersion-type separator module is integrated in a fiber filter according to the prior art.
FIG. 3 is a diagram schematically illustrating a water treatment system using a water treatment device in which an immersion-type separator module is integrated in the fiber filter shown in FIG. 2.
4 is a diagram schematically showing a water treatment system using an immersion type separator according to the prior art.
5 is a view schematically showing a membrane filtration advanced water treatment 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 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.
8 is a block diagram showing in detail 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 lower storage tank including an immersion-type separator in an immersion-type water treatment and storage integrated system of a siphon-driven water level control method according to an embodiment of the present invention. It is a diagram showing that.
10 is an operation flow diagram of an immersion type water treatment and storage method of a siphon driving water level control method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it 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.

[Immersion type water treatment and storage integrated system 100 of the 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 an 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,

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

The upper storage tank 110 or the reservoir stores target raw water such as rainwater, groundwater, surface water, and valley water, and at this time, the target raw water is water treated by the submerged separator 160 so as to cope with drought, such as living water, landscaping water, Used for industrial water, etc. In addition, the upper storage tank 110 may primarily remove impurities contained in rainwater and valley water collected from the outside with a filter such as a screen 111. Here, h1 represents the level of the target raw 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 the collecting surface of the roof of the building, roof surface, and green area during rainfall, or a separate inlet pipe from the 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 outside so that the siphon pipe 130 can be siphon driven.

The siphon pipe 130 includes a water intake pipe 131, an outlet 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 is installed between the upper storage tank 110 and the lower storage tank 140. The target raw water stored in the storage tank 110 is supplied to the lower storage tank 140, and the driving water level of the siphon pipe 130 is adjusted. Here, h2 represents the height of the body on which 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 effluent 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 under the upper storage tank 110 and stores the target raw water supplied through the siphon pipe 130. At this time, the lower storage tank 140 has a structure capable of physically cleaning the immersion-type separation membrane 160 by controlling the flow rate change flow of the target raw water collected and delivered by the siphon pipe 130 so that the lower storage tank 140 maintains a constant water level. Specifically, at the discharge point of the lower storage tank 140, turbulence occurs between the gaps of the immersion-type separator 140 installed as a vertical module of the lower storage tank 140, thereby reducing the concentration polarization on the surface of the separator to prevent membrane contamination. It has a structure that mitigates the rapid reduction of the flux caused by. Accordingly, in the case of the lower storage tank 140, while maintaining a constant water level by siphon driving, the immersion-type separator 160 can secure a certain amount of filtration, and at the same time, turbulence or vortex formation is induced to accumulate on the surface of the separator. It is possible to reduce the flux reduction due to concentration polarization by desorbing pollutants such as at a constant flow rate.

In addition, in the case of the lower storage tank 140 in which the immersion-type separator 160 is integrally installed, a vortex is formed in the inlet of the immersion-type separator to desorb pollutants such as turbidity that accumulate on the surface of the separator at a constant flow rate. It has a structure that induces a swirling flow in order to mitigate the reduction of the flux, and at this time, the floated floc or particles can be discharged to 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 submerged separator 160 is installed in the lower storage tank 140 to treat the target raw water. Specifically, the immersion-type separator 160 integrally installed at the lower end of the lower storage tank 140 and driven in response to the water level separates suspended substances, protozoa, bacteria, viruses, etc. into particles according to the sieving principle. A microfiltration membrane with a separation diameter of 0.1㎛ or less is used. That is, the immersion type separation membrane 160 installed in the lower storage tank 140 is formed of a precision filtration membrane module having a nominal pore diameter of 0.1 μm, and the precision filtration separation membrane module may be a hollow fiber type precision filtration module or a flat plate type precision filtration module. At this time, the hollow fiber type precision filtration module includes a hollow fiber type precision filtration membrane installed horizontally, and the turbulence or vortex generated by the siphon pipe 130 is discharged in the vertical direction of the hollow fiber type precision filtration membrane, and, The flat plate type microfiltration module includes a flat plate type microfiltration membrane installed vertically, and turbulence or eddy current generated by the siphon pipe 130 may be discharged in the horizontal direction of the flat plate type microfiltration membrane.

The treated water tank 170 stores the treated water treated by the submerged separation membrane 160 in the lower storage tank 140, and the treated water is used as living water, landscape 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 transfer the treated water treated by the submerged separation membrane 160 in the lower storage tank 140 to the treated water tank 170. Discharge into. At this time, the treated water discharge is controlled according to the opening and closing of the treated water discharge valve 181 installed on the treated water pipe 180, and the treated water discharge valve 181 is an electronic type controlled by the management module 190. It may be a solenoid opening/closing valve.

The management module 190 drives the siphon pipe 130 in response to the water level of the lower storage tank 140 measured by the water level meter 150 to set and adjust the siphon driving water level of the siphon pipe 130 to discharge effluent 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, an immersion-type separator 160, for example, a hollow fiber-type or flat-panel separator, installed under the lower storage tank 140 at the internal pressure of the storage tank without a separate vacuum pump, while maintaining a constant water level by inducing a siphon phenomenon. The pollutants of the target raw water flowing through are removed, and the target raw water is treated with water.

In other words, by generating a siphon driving force due to the difference in water level of the siphon pipe 130 connected to the lower storage tank 140, while maintaining a constant water level of the lower storage tank 140, the submerged separator 160 installed in the lower storage tank 140 After the treatment is processed by being driven by gravity or water level difference without a separate vacuum pump or external force by allowing it to be permeated by the precision filtration membrane, the treated water treated by the immersion type separator 160 is supplied to the treated water tank 170 and stored. . Accordingly, the influent 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, which is the immersion-type separator 160, thereby reducing pollutants such as turbidity that accumulate on the surface of the immersion-type separator 160. Desorption at a constant flow rate can mitigate the decrease in flux due to concentration polarization.

Specifically, the submerged water treatment and storage integrated system 100 of a siphon driving water level control method according to an embodiment of the present invention directly reduces target raw water, for example, rainwater, groundwater, or valley water that can induce an upper siphon phenomenon. When there is a separate storage facility or a separate storage facility, the water intake pipe 131 that can transfer the target raw water by the siphon pipe 130 is connected, and the discharged water flows out to the lower storage tank 140 to induce a siphon phenomenon. Make sure that 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 outside air is blocked, at this time, the outlet pipe through a separate pump and the pump inlet pipe. Fill (132) with water to maintain a vacuum. When the lower storage tank 140 is filled above the target water level through the upper water intake pipe 131 after siphon induction, external air is guided to suppress siphon induction and to induce a certain water level, and the submerged separator in the lower storage tank 140 Water treatment of the target raw water according to (160). In this case, when the target raw water is filtered by the immersion-type separator 160, the strong flow of the lower storage tank 140 due to the siphon can be physically cleaned by removing contaminants on the surface of the immersion-type separator 160.

In the siphon pipe 130 by the siphon driving force, the flow velocity on the siphon pipe 130 discharged to the upper storage tank 110 or the water level of the reservoir with a water level difference and discharged to the lower storage tank 140 or the immersion type separator 160 is calculated as follows: It can be expressed as Equation 1 and Equation 2.

Specifically, assuming that there is no loss of the pipe, the model related to the flow velocity of the siphon pipe 130 is described by the Bernoulli equation as shown 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,

,

,

Represents the pressure, speed, and ground height at the upper storage tank 110 or at a location point on the water surface of the reservoir, respectively,

,

And

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

Represents the specific gravity of water,

Represents 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 decreases, but the amount discharged for a certain period of time is the total amount of the storage tank or the reservoir. Since the scale of is larger, the decrease in the water level of the upper reservoir 110 or the reservoir for a short time is very small, and the flow velocity of the upper reservoir 110 or the 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 and valve control of the siphon pipe 130 is adjusted. In this case, in the case of a water treatment facility such as the immersion-type separation membrane 160, since it is filtered by a certain difference in water level, it is discharged in consideration of the amount of filtered water in the lower storage tank 140. In particular, in the case of the reservoir, since the water surface and the discharged position are open spaces, and the pressure is the same as atmospheric pressure, Equation 1 can be simply summarized as 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 by the siphon driving force, and the reservoir water level (

) And discharge location height (

) It means that discharge occurs by car. In other words, 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-driven water level control method according to the embodiment of the present invention collects rainwater, groundwater, surface water, or valley water and uses it as living water, landscape water, industrial water, etc. In a small storage tank in an island area, an immersion-type separator 160 that can control the water level by a siphon phenomenon is integrally installed at the bottom of the lower storage tank 140 to maintain the driving water level by the siphon phenomenon, and the immersion-type separator 160 is used. It can be filtered.

In addition, the submerged water treatment and storage integrated system 100 of a siphon-driven water level control method according to an embodiment of the present invention, when the lake water or raw water of the reservoir confined in an artificial structure such as a dam is used as influent water, the water level difference is higher than that of the water treatment facility. Even if it is high, it is possible to filter without a separate transfer pump by adjusting the water level of the lower storage tank 140 including the submerged separation membrane 160 by using the flow rate in the pipe as a driving force.

In addition, the immersion type water treatment and storage integrated system of the siphon driving water level control method according to the embodiment of the present invention, for example, when using rainwater as the target raw water, a storage tank including the immersion type separation membrane 160 as a water treatment device integrally In the case of using lake water or valley water in a reservoir with artificial structures such as a dam or a water level difference between the building and the water level, by installing a siphon pipe 130 that induces a siphon phenomenon, it is high by gravity without a pump or external force. It takes advantage of the phenomenon that the enemy of the place flows to a lower place even if it passes through a higher place. That is, the target raw water is transferred from the top to the bottom in the upper storage tank 110 and the lower storage tank 140 that can use the siphon phenomenon, and the internal immersion type by always maintaining a constant water level in the lower storage tank 140 The separation membrane 160 may filter target raw water at an internal pressure or water 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, it is possible to physically clean the immersion type separator 160 so that a separate high pressure pump for driving the existing separator Do not need

On the other hand, Figure 8 is a configuration diagram showing in detail the management module of the integrated system for submerged water treatment and storage 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 level check unit 191, a siphon driving water level control unit 192, It may include a control unit 193, a siphon pipe driving unit 194, and an immersion type separation membrane driving unit 195.

The lower storage tank water level confirmation unit 191 of the management module 190 checks the water level of the lower storage tank 140 measured by the water level meter 150.

The siphon driving water level adjustment 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 level adjustment unit 192.

The siphon pipe driving unit 194 of the management module 190 drives the opening and closing of the air control valve 120 and the effluent discharge valve 133 to operate the siphon pipe 130.

The immersion type separation membrane driving part 195 of the management module 190 drives the immersion type separation membrane 160 installed in the lower storage tank 140 to treat water.

On the other hand, FIG. 9 is a lower storage tank including an immersion-type separator in an immersion-type water treatment and storage integrated system of a siphon-driven water level control method according to an embodiment of the present invention by a water head difference of a certain water level induced by a 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 the embodiment of the present invention, the lower storage tank 140 including the immersion type separator 160 is a separate vacuum suction Even without a pump, the target raw water induced by the siphon phenomenon of the siphon pipe 130 can be filtered by a water head difference of a certain level to water treatment, and at this time, the water treatment device using the immersion type separator 160 is placed in the lower storage tank 140 By being integrated, water treatment and storage of the target raw water can be performed simultaneously.

Accordingly, according to an embodiment of the present invention, in the case of a small-scale water supply facility in an island area or a village water supply system, 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, it is possible to supply safe and stable water tailored to the site characteristics while minimizing costs by supplying emergency water through an immersion-type water treatment and storage integrated system of the siphon drive water level control method by the siphon pipe 130 by itself without additional power. I can.

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

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

Referring to FIG. 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 is, 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 checked whether to supply the target raw water into the lower storage tank 140 in response to 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, open the effluent discharge valve 133 installed on the outlet pipe 132 of the siphon pipe 130, and open the air control valve 120 installed on the top of the siphon pipe 130 to perform an air vent. Do (S130).

)은

로 주어지고, 여기서,

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

)와 하단 저류조(140)의 방류 위치 높이(

) 차에 의해 방류가 발생하며, 수위차에 비례하여 방류속도가 결정된다.Next, 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 for transmitting the siphon driving force of the siphon pipe 130 (

)silver

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 storage tank 110 (

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

) Discharge occurs due to the difference, and the discharge speed is determined in proportion to the difference in water level.

Next, the immersion-type separation membrane 160 in the lower storage tank 140 is driven to filter and water-treat the target raw water by a water head difference of a predetermined level (S150). Specifically, when discharge occurs to the lower storage tank 140 by the siphon pipe 130, the water in the upper storage tank 110 or the reservoir decreases, but the amount discharged for a certain period of time is the total amount of the storage tank or the reservoir. Since the scale is larger, the decrease in the water level of the upper reservoir 110 or reservoir for a short period of time is very small, and the water surface speed of the reservoir or reservoir can be neglected. However, when the size of the facility of the upper storage tank 110 is not large, the amount of discharge can be adjusted by adjusting the particle size and 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 it in consideration of the amount of filtered water in 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, the water treatment device for water treatment of the target raw water using the immersion type separator 160 and the lower storage tank 140 are integrated, and the siphon pipe corresponding to the water level of the lower storage tank 140 measured by the water level meter 150 The siphon driving level of 130 can be set and adjusted.

In the end, according to an embodiment of the present invention, in a storage tank or a reservoir collecting rainwater, groundwater, surface water, or valley water, etc., so that it can be used as living water, landscaping water, industrial water, etc. in response to drought, the upper and lower storage tanks Siphon piping is installed to have a difference, but by adjusting the siphon driving water level in response to the water level of the lower storage tank, it is possible to smoothly supply and treat the target raw water due to the siphon phenomenon.In addition, a water treatment device and a lower storage tank using an immersion type separator By integrally forming, water treatment and storage of the target raw water can be performed at the same time, and the physical of the immersion-type separator is controlled by controlling the flow rate change flow of the target raw water taken in and delivered by a siphon pipe so that the lower storage tank maintains a constant water level. Cleaning becomes possible.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that other specific forms can be easily modified 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 and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

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

Claims (14)

An upper storage tank 110 for storing target raw water of rainwater, groundwater, surface water or valley water;
A lower storage tank 140 installed below the upper storage tank 110 to store target raw water supplied through the siphon pipe 130;
It includes a water intake pipe 131, an outlet 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 installed on the top of the siphon pipe 130 and discharging the air in the siphon pipe 130 to the outside so that the siphon pipe 130 can 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 treated water treated by the submerged separation membrane 160 in the lower storage tank 140; And
A management module that sets and adjusts 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 level meter 150, and controls the discharge of effluent water by driving the siphon pipe 130 Including (190),
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 treatment of target raw water using the immersion type separator 160 and the lower storage tank 140 are integrated. The method of claim 1,
A treated water pipe installed between the lower storage tank 140 and the treated water tank 170 to discharge the treated water treated by the submerged separation membrane 160 in the lower storage tank 140 to the treated water tank 170 ( 180), wherein the management module 190 opens and closes the treated water discharge valve 181 installed on the treated water pipe 180 to control the discharge of treated water. Submerged water treatment and storage integrated system. The method of claim 1,
Siphon drive, characterized in that physical cleaning of the immersion-type separator 160 is possible by controlling the flow rate change flow of the target raw water taken in and delivered by the siphon pipe 130 so that the lower storage tank 140 maintains a constant water level. Submerged water treatment and storage integrated system with water level control. The method of claim 1,
Flow velocity for transmitting the siphon driving force of the siphon pipe 130 (

)silver

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 storage tank 110 (

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

) An immersion-type water treatment and storage integrated system of a siphon-driven water level control method, characterized in that discharge occurs by difference and the discharge rate is determined in proportion to the difference in water level. The method of claim 1,
The submerged separation membrane 160 installed in the lower storage tank 140 is formed of a microfiltration membrane module having a nominal pore diameter of 0.1 μm, and the microfiltration membrane module is a hollow fiber type microfiltration module or a flat plate microfiltration module. Immersion type water treatment and storage integrated system with siphon drive water level control. The method of claim 5,
The hollow fiber type precision filtration module includes a hollow fiber type precision filtration membrane installed horizontally, and the turbulence or vortex generated by the siphon pipe 130 is discharged in the vertical direction of the hollow fiber type precision filtration membrane. Submerged water treatment and storage integrated system with water level control. The method of claim 5,
The plate type precision filtration module includes a plate type precision filtration membrane installed vertically, and the turbulence or vortex generated by the siphon pipe 130 is discharged in the horizontal direction of the flat type precision filtration membrane. Submerged water treatment and storage integrated system with water level control. The method of claim 1, wherein the management module 190,
A lower storage tank water level check unit 191 for checking the water level of the lower storage tank 140 measured by the water level meter 150;
A siphon driving water level adjusting unit 192 for setting and adjusting the driving water level of the siphon pipe 130 in response to 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 water level adjusted by the siphon driving level adjusting unit 192;
A siphon pipe driving unit 194 for driving opening and closing of the air control valve 120 and the effluent discharge valve 133 to operate the siphon pipe 130; And
An immersion-type water treatment and storage integrated system of a siphon driving water level control method comprising an immersion-type separator driving unit 195 that drives the immersion-type separator 160 installed in the lower storage tank 140 to treat water. 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) checking whether to supply target raw water into the lower storage tank 140 in response to 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 at the top of the siphon pipe 130 to perform an air vent. step;
d) supplying target raw water from the upper storage tank 110 to the lower storage tank 140 by a siphon phenomenon;
e) filtration and water treatment of target raw water by driving the immersion-type separation membrane 160 in the lower storage tank 140 by a water head difference of a predetermined level; And
f) opening the treated water discharge valve 181 on the treated water pipe 180 to store the treated water in the treated water tank 170,
A water treatment device for water treatment of target raw water using the immersion-type separation membrane 160 and the lower storage tank 140 are integrated, and the siphon pipe 130 corresponds to the water level of the lower storage tank 140 measured by the water level meter 150. A siphon driving water level control method of immersion type water treatment and storage method, characterized in that the siphon driving water level is set and adjusted. The method of claim 9,
Siphon drive, characterized in that physical cleaning of the immersion-type separator 160 is possible by controlling the flow rate change flow of the target raw water taken in and delivered by the siphon pipe 130 so that the lower storage tank 140 maintains a constant water level. Submerged water treatment and storage method of water level control method. The method of claim 9,
Flow velocity for transmitting the siphon driving force of the siphon pipe 130 (

)silver

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 storage tank 110 (

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

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

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