KR101314575B1 - Water treating apparatus used in rainwater - Google Patents

Abstract

PURPOSE: A water process apparatus for using rain water is provided to minimize an installation area, to have excellent usability of an upper space of a water storage tank, to have a large process capacity compared to a facility size, and to facilitate operation and maintenance of the apparatus by simplifying a system. CONSTITUTION: A water process apparatus comprises a rain water storage tank (110); a rain water processor (120); and a system box (130). The rain water processor is salvably installed in a vertical direction in one side of the rain water storage tank. The system box is installed at an upper part of the rain water storage tank, and all kinds of machines for filtration of the rain water processor and operation and control of a reverse washing mode are integrated in the system box. The rain water processor comprises a filter outer container (121); a rain water inlet (122); a separation film module (123); a process water drain tube (124); a reverse washing tube (125); a drain water inlet part (127); and a drain water tube (128).

Description

Water Treating Apparatus used in rainwater}

The present invention relates to a water treatment apparatus for rainwater use by using a high-density rainwater treatment unit and the system box to use high-quality rainwater, rainwater treatment unit is located inside the storage tank, and other machines and devices are integrated in the system box outside the storage tank. By doing so, it is possible to minimize the installation area, excellent utilization of the upper space of the storage tank, the treatment capacity is large compared to the size of the facility, and the system is simple, the water treatment apparatus for the use of rainwater is very easy to operate and maintain.

Korea is one of the countries with insufficient water in the world, and it is urgently required to secure and utilize efficient water resources to solve this problem.

Therefore, in order to prevent serious social problems that may be caused by water shortage in the future, not only water resource management such as saving water and construction of multi-purpose dams, but also reviewing and developing the use of rainwater that is rarely used and discharged should be devised. .

Especially, in Korea, there is a climatic condition that distinguishes rainy season where rain falls intensively and dry season where rain rarely falls. In order to do so, it is necessary to construct dams on a large scale, and accordingly, there is a problem of environmental destruction due to excessive increase of dam construction cost and expansion of submerged area. Therefore, efficient storage and utilization of rainwater is urgently needed.

In addition, urban areas are currently covered with asphalt, concrete, blocks, etc., which are difficult to penetrate rainwater through the earth's surface.

Therefore, most of the rainwater does not penetrate into the soil below the surface of the rainfall, but flows into the rivers or sewage treatment plants through storm or sewer pipes (hereinafter referred to as drainage facilities).

Therefore, when the amount of rainwater to be treated through the drainage system is exceeded due to heavy rain and heavy rainfall, damage such as backflow of the rainwater, surface subsidence, as well as flooding of the river when the rainwater flows into the stream at once is generated. .

However, the method of expanding the drainage system or improving the stream in order to improve the treatment capacity of the rainwater is difficult due to many difficulties in reality.

For this reason, when each building is newly constructed, the rainwater flowing into the roof or the ground of the building is stored in a separate storage tank so that the rainwater is temporarily drained.

As rainwater needs to be used in current water, rainwater use facilities will be installed when the water is expanded or rebuilt more than the size prescribed by Presidential Decree among the facilities with a large roof area, such as general sports grounds, indoor gymnasiums, and public buildings. It must be operated.

In addition, when the roof area is more than 2400 and the grandstand is more than 1400 seats, the water storage capacity is required to be provided with the roof area x 0.05m or more.

In addition, national and local governments may subsidize the cost of the installation of rainwater facilities to owners of facilities that have installed rainwater facilities, and municipalities may reduce water rates as prescribed by ordinance. article)

However, in the above case, since the initial rainwater flowing into the roof of the building or the ground contains a large amount of various pollutants or foreign substances in the air, the initial rainwater is treated with natural drainage as before, and after the initial rainwater has passed separately It is stored in a storage tank for processing.

In addition, since the storage tank is composed of a single tank, there is a problem in that the rainy season raining rain is limited in the storage capacity of the rain water and the rain water is not recycled efficiently.

In an effort to solve such a problem, a "water treatment apparatus using a hollow fiber membrane" technology of Korean Patent No. 10-0834898 is proposed.

The rainwater treatment device of the prior art is an electric valve for opening and closing the inflow of rainwater; Sedimentation tank for removing the precipitate of the rainwater introduced; A screen facility for removing the suspended suspended matter; A first collecting tank for storing rainwater that has passed through the settling tank and the screen facility; A first reservoir plate installed on one side of the first water collecting tank to reduce the flow rate of rainwater upon excessive inflow of rainwater; A second collecting tank in which rainwater is stably introduced and stored through the first storage plate; A first pump installed in the second water collecting tank and sucking the stored water stored in the second water collecting tank; A hollow fiber membrane filtration device for filtering the stored water sucked into the first pump; A suction pump for sucking the stored water filtered by the hollow fiber membrane filter device; A treatment tank for storing the storage water sucked by the suction pump, and receiving rainwater directly from the second collection tank during heavy rain; It includes; a second pump for draining the treated water stored in the treatment tank.

This conventional technology allows the pre-storage post-treatment by separating the sump tank and the treatment tank separately to utilize the purified rainwater as landscaping water. By using the water tank as a reservoir, rainfall runoff can be reduced to prevent flood damage.

In addition, by using hollow fiber membrane filtration as rainwater treatment device, the facility is simple, and it removes fine pollutants and bacteria such as E. coli in rainwater due to air pollution and contamination of catchment surface. We aim at efficiency.

However, the above-described prior art is a facility for pumping the stored rainwater and treating the hollow fiber membrane, and there is a problem in that an installation space for installing a separate membrane module on the upper part of the storage tank is needed. There was a problem of requiring complex cleaning facilities for membrane backwash.

An object of the present invention devised to solve the problems of the prior art is a water treatment apparatus for using rainwater to make high-quality rainwater by using a high-density rainwater treatment unit and a system box, the rainwater treatment unit is located inside the storage tank, and other machines and The device is integrated in the system box outside the storage tank, so that the installation area can be minimized, the utilization of the storage tank upper space is excellent, the processing capacity is large compared to the facility size, and the system is simple, and the rainwater is easy to operate and maintain. In providing a water treatment apparatus for use.

Another object of the present invention by lifting the entire rainwater treatment unit including the membrane module at the top of the storage tank to replace or repair and then install it in place, very easy to maintain, and can be easily applied to new and existing facilities as well Therefore, when the present technology is applied to a simple rainwater storage tank that is already installed, the present invention provides a water treatment apparatus for using rainwater to contribute to securing water resources as well as existing excellent storage effects.

Another object of the present invention is to manufacture the membrane in the form of tubular membrane, the filtration area per unit installation area is increased, the rainwater treatment capacity is very large compared to the installation area, and by applying a membrane module having a pore diameter of about 5㎛, The present invention provides a water treatment apparatus for using rainwater, which has an excellent efficiency of reducing pollutants as compared to precipitation and filtration methods.

According to one aspect of the invention, the rainwater storage tank in which rainwater is introduced from the building roof and stored in the basement; A rainwater treatment unit which is installed to be lifted in a vertical direction on one side of the rainwater storage tank and filters the rainwater in the rainwater storage tank to generate treated water; And a system box installed at an upper portion of the rainwater storage tank and integrated with various mechanical devices for driving and controlling the filtration and backwashing mode of the rainwater treatment unit.

Here, the rainwater treatment unit is a filter enclosure installed to penetrate the rainwater storage tank in the vertical direction; A rainwater inlet installed at a lower portion of the filter enclosure to introduce rainwater in the rainwater storage tank into the filter enclosure; A separation membrane module installed above the rainwater inlet to filter the rainwater introduced to generate treated water; A treated water outlet pipe forming a flow path for transferring the treated water filtered by the membrane module to the system box; A backwashing tube forming a backwashing fluid injection path such as air or water from the system box into the membrane module; A water discharge inlet installed at the bottom of the filter enclosure to suck the sludge discharged through the backwash mode of the membrane module; And a discharge pipe forming a movement path of the discharge water from the discharge water inlet to the system box.

In addition, the separator module comprises a plurality of separators having a circular or square array; A separator cover in the form of a screen net surrounding the separator; An upper cap which sealably couples the separator cover and the upper portion of the separator; And a lower cap coupled to the separator cover and the lower portion of the separator to discharge the treated water or supply a fluid for back washing.

In addition, the rain water inlet may extend through the side wall of the filter enclosure to the center side of the filter enclosure, the extended end may form an injection portion having a diffusion pipe structure so that rain water can be diffused in the upward direction.

In addition, the discharge inlet is installed in the lower portion than the rainwater inlet, is made of a ring having an opening side of the "C" type, and forms a plurality of inlet holes for collecting sludge along the ring circumference, the upper part of the discharge inlet One side may be connected to the discharge pipe in the vertical direction.

At this time, the discharge pipe is integrally coupled to the membrane module to be lifted together, so that the "C" type opening side of the discharge inlet is disposed on a vertical line with the rainwater inlet to prevent mutual interference during vertical lifting of the discharge inlet. Can be.

In addition, the system box includes a suction pump for filtering the rain water through the separation membrane; A device for supplying backwash fluid to the membrane module of the rainwater treatment unit; And a drainage pump for pumping the drainage backwashed with the separator.

The present invention relates to a water treatment apparatus for rainwater use by using a high-density rainwater treatment unit and the system box to use high-quality rainwater, rainwater treatment unit is located inside the storage tank, and other machines and devices are integrated in the system box outside the storage tank. By doing so, the installation area can be minimized, the utilization of the upper space of the storage tank is excellent, the processing capacity is larger than the facility scale, and the system is simple, so that the operation and maintenance are very easy.

In addition, the present invention by lifting and replacing or repairing the entire rainwater treatment unit including the membrane module at the top of the reservoir after installing it in place, very easy to maintain, and can be easily applied to new and existing facilities, Application of this technology to existing simple rainwater storage tanks can contribute to securing water resources as well as existing good storage effects.

In addition, the present invention by manufacturing the separation membrane in the form of tubular membrane, the filtration area per unit installation area is increased, the rainwater treatment capacity is very large compared to the installation area, and by applying a separation membrane module having a pore diameter of about 5㎛, existing sedimentation treatment Compared with the method of filtration and the like, the efficiency of reducing pollutants is excellent.

1 is a conceptual diagram illustrating a water treatment apparatus for using rainwater according to the present invention.
Figure 2 is an enlarged view of the main portion showing a rainwater treatment unit according to the present invention.
3 is a sectional view taken along the line AA in Fig.
4 is a sectional view taken along line BB of Fig.
5 is a conceptual diagram showing the internal structure of the system box according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram illustrating a water treatment apparatus for using rainwater according to the present invention. Referring to FIG. 1, the present invention includes a rainwater storage tank 110 in which rainwater flows out from a building roof and is stored therein, and includes a membrane module 123 in a vertical direction on one side of the rainwater storage tank 110. Rainwater treatment unit 120 is installed, the rainwater storage tank 110, the system box 130 is integrated with a variety of mechanical devices for the operation and control of the rainwater treatment unit 120.

At this time, the rainwater storage tank 110 may be formed so as to be recessed below the flat bottom to install the rainwater treatment unit 120 as a facility of the type buried underground.

This is to improve the rainwater filtration efficiency by allowing the rainwater in the storage tank to be concentrated to the rainwater treatment unit 120 side.

In addition, the rainwater inlet pipe 111 is connected to the roof on one side of the rainwater storage tank 110 to receive the rainwater may be installed.

Next, the rainwater treatment unit 120 will be described.

FIG. 2 is an enlarged view illustrating a rainwater treatment unit according to the present invention, FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line B-B of FIG.

2 to 4, the rainwater treatment unit 120 is largely a filter enclosure 121, a rainwater inlet 122, a membrane module 123, a treated water outlet pipe 124, a backwashing pipe 125, and a wastewater inlet. The part 127 and the discharge pipe 128 are included.

First, the filter enclosure 121 is installed to penetrate the rainwater storage tank 110 in the vertical direction.

The filter enclosure 121 is a tubular structure, a metal or synthetic resin tube may be used.

Such a filter enclosure 121 is to form a separate separate space that is separated from the rainwater storage tank (110). At this time, in the separated space, the structures of the rainwater treatment unit 120 including the membrane module 123 of the present invention are installed in a salvable state.

The rainwater inlet 122 is installed at the lower portion of the filter enclosure 121 to introduce rainwater in the rainwater storage tank 110 into the filter enclosure 121.

At this time, the rain water inlet 122 extends through the side wall of the filter enclosure 121 to the center side of the filter enclosure 121, the extended end has a diffusion pipe structure so that rain water can be supplied diffused upwards The injection part can be formed.

In addition, the membrane module 123 is installed above the rainwater inlet 122 to filter the rainwater introduced to generate treated water.

In this case, the separator module 123 may include a plurality of separators 123a having a circular or rectangular array, a separator cover 123d having a screen net shape surrounding the separator 123a, and the separator cover 123d and An upper cap 123b for sealingly sealing the upper part of the separator 123a, and a lower cap coupled to the lower part of the separator cover 123d and the separator 123a to discharge the treated water or supply a backwashing fluid ( 123c).

At this time, the separation membrane 123a is made of a pore membrane capable of removing more than 99.9% of particulate matter of 10 μm or more, and can significantly improve the effect of removing contaminants compared to simple storage and precipitation or sand filtration.

In addition, a treatment water outlet pipe 124 for forming a flow path for transferring the treatment water filtered by the membrane module 123 to the system box 130 is disclosed.

One end of the treated water outlet pipe 124 is connected to the bottom of the lower cap (123c), the other end is connected to the suction pump 131 side of the system box 130.

In addition, a back washing tube 125 is formed to form a back washing fluid injection path such as air or water into the membrane module 123 from the system box 130.

The back washing tube 125 is one end is connected to the back washing device 134 of the system box 130 side, the other end is connected through the lower cap (123c) of the membrane module 123. In this case, the backwash nozzle 126 for diffusing and supplying backwash fluid such as air or water may be coupled to an end portion extending into the lower cap 123c.

At this time, the shape of the reverse nozzle 126 may be formed of a circular ring shaped tube.

Of course, a plurality of vents may be formed on the screen net such that backwash fluids such as air or water may be simultaneously ejected through each vent.

In addition, the bottom of the filter enclosure 121 is provided with a discharge water inlet 127 to suck the sludge discharged through the backwash mode of the membrane module 123.

At this time, the sludge suctioned from the discharge inlet 127 may be moved to the system box 130 through the discharge pipe 128.

In addition, the discharge inlet 127 formed below the rainwater inlet 122 is made of a “C” shaped ring having an opening side, and forms a plurality of inlet holes 127a along the ring circumference at the same time. Allow the capture of sheep sludge.

At this time, the discharge pipe 128 in the vertical direction is connected to the upper one side of the discharge inlet 127.

The discharge pipe 128 may be integrally coupled to the membrane module 123 to be lifted together, so that the “C” type opening side of the discharge water inlet 127 is disposed on a vertical line with the rainwater inlet 122. By doing so, it is possible to avoid mutual interference during the vertical lifting of the water discharge inlet 127.

Next, the system box 130 will be described.

5 is a conceptual diagram illustrating an internal structure of a system box according to the present invention, referring to FIG. 5, the system box 130 includes a suction pump 131 for filtering and pumping rainwater through a separator 123a. In addition, a UV treatment device 133 for ultraviolet disinfection of the treated water pumped by the suction pump 131 and a backwashing device for supplying backwash fluid such as air or water to the separation membrane module 123 of the rainwater treatment unit 120. ), And a discharge pump 135 for pumping the discharged water backwashed with the separator 123a.

The system box 130 is connected to the treated water discharge pipe 124, backwashing pipe 125 and the discharge pipe 128 of the rainwater treatment unit 120 side, these three pipes are installed in the rainwater storage tank 110, the filter enclosure 121 is installed through the interior in the vertical direction.

In addition, the system box 130 may be further formed with an outlet pipe 138 for supplying the treated water to the UV treatment destination, it may be further formed a discharge port 139 for discharging the discharge.

Hereinafter, the operation mode of the water treatment apparatus for using rainwater according to the present invention will be described.

First, in the filtration mode, when the suction pump 131 inside the system box 130 is operated, rainwater stored through the only open rainwater inlet 122 of the filter enclosure 121 is transferred to the filter enclosure 121. Inflow.

Thereafter, the introduced rainwater passes through the membrane type membrane cover 123d surrounding the membrane 123a and is filtered again through the membrane. Then, the filtered rain water is discharged to the upper system box 130 through the treated water outlet pipe 124 is sent to the place of use through the disinfection process through the internal UV treatment device 133 is reused.

Next, as the backwash mode, when the membrane 123a is closed, the backwashing device 134 inside the system box 130 is operated, and the backwashing tube 125 and the backwash nozzle 126 are operated as the backwashing device 134 is operated. Through the air is injected into the membrane module 123 and the backwash fluid such as air or water is discharged from the inside of the tubular separator 123a to desorb the contaminants attached to the outside of the tubular separator 123a.

At this time, the contaminants detached from the surface of the tubular separation membrane 123a are settled in the filter enclosure 121, and when the backwash is completed, the discharge pump 135 inside the system box 130 is operated.

When the discharge pump 135 is operated, the discharged water sedimented and concentrated in the filter enclosure 121 by being separated from the tubular separator 123a is sucked through the discharge water inlet 127 and discharged upward along the discharge pipe 128. .

The present invention as described above relates to a water treatment apparatus for using the rain water to enable high-quality rainwater by using a high-density rainwater treatment unit and the system box, the rainwater treatment unit is located inside the storage tank, other machines and devices are systems outside the storage tank By being integrated in the box, the installation area can be minimized, the utilization of the upper space of the reservoir is excellent, the processing capacity is large compared to the size of the facility, and the system is simple, so the operation and maintenance are very easy.

In addition, the present invention by lifting and replacing or repairing the entire rainwater treatment unit including the membrane module at the top of the reservoir after installing it in place, very easy to maintain, and can be easily applied to new and existing facilities, Application of this technology to existing simple rainwater storage tanks can contribute to securing water resources as well as existing good storage effects.

In addition, the present invention by manufacturing the separation membrane in the form of tubular membrane, the filtration area per unit installation area is increased, the rainwater treatment capacity is very large compared to the installation area, and by applying a separation membrane module having a pore diameter of about 5㎛, existing sedimentation treatment And compared to the method of filtration and the like has an excellent reduction efficiency of contaminants.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You can understand that you can. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are only illustrative in all aspects and should not be construed as limiting the scope of the invention, and such modified embodiments are included in the technical idea described in the claims of the present invention.

110: rainwater storage tank 111: rainwater inlet pipe
120: water treatment unit 121: filter enclosure
122: rainwater inlet 123: membrane module
123a: membrane 123b: top cap
123c: lower cap 123d: membrane cover
124: treated water discharge pipe 125: backwash
126: backwash nozzle 127: discharge inlet
127a: inlet hole 128: discharge pipe
130: system box

Claims (7)

Rainwater storage tank 110 is stored in the basement rainwater flows from the building roof;
Rainwater treatment unit 120 is installed so as to be able to lift in the vertical direction on the inner side of the rainwater storage tank 110, to filter the rainwater in the rainwater storage tank 110 to generate the treated water; And
A system box 130 installed on the rainwater storage tank 110 to integrate various mechanical devices for driving and controlling the filtration and backwashing mode of the rainwater treatment unit 120;
Including;
The rainwater treatment unit 120 includes a filter enclosure 121 installed to penetrate the rainwater storage tank 110 in a vertical direction;
A rainwater inlet 122 installed at a lower portion of the filter enclosure 121 to introduce rainwater in the rainwater storage tank 110 into the filter enclosure 121;
A separation membrane module 123 installed above the rainwater inlet 122 to filter the rainwater introduced to generate treated water;
A treated water outlet pipe 124 forming a flow path for transferring the treated water filtered by the membrane module 123 to the system box 130;
A backwashing pipe 125 forming a backwashing fluid injection path such as air or water into the membrane module 123 from the system box 130;
A water discharge inlet 127 installed at the bottom of the filter enclosure 121 to suck the sludge discharged through the backwash mode of the membrane module 123; And
Water treatment apparatus for rainwater comprising a; and a discharge pipe (128) for forming a movement path of the discharge from the discharge inlet 127 to the system box (130) side.
delete The method of claim 1,
The separator module 123 may include a plurality of separators 123a having a circular or square array;
A separator cover (123d) having a screen net shape surrounding the separator (123a);
An upper cap 123b for sealingly sealing the upper portion of the separator cover 123d and the separator 123a; And
And a lower cap (123c) coupled to the separation membrane cover (123d) and the lower portion of the separation membrane (123a) to discharge the treated water or supply a backwashing fluid.
The method of claim 1,
The rainwater inlet 122 extends through the side wall of the filter enclosure 121 and extends toward the center side of the filter enclosure 121, and an injection portion having a diffusion pipe structure is provided at the extended end so that rainwater can be diffused and supplied upward. Water treatment apparatus for using rain water, characterized in that forming.
The method of claim 1,
The discharge inlet 127 is installed below the rainwater inlet 122 and is made of a ring having an opening side of a “C” type, and includes a plurality of inlet holes 127a for collecting sludge along the ring circumference. Forming, water treatment apparatus for using rainwater, characterized in that the discharge pipe in the vertical direction is connected to the upper one side of the discharge inlet 127.
The method of claim 5,
The drainage pipe 128 is integrally coupled to the membrane module 123 to be lifted together, and the "C" type opening side of the drainage inlet 127 is disposed on a vertical line with the rainwater inlet 122 so that the drainage inflow can be made. Water treatment apparatus for using rainwater, characterized in that to prevent mutual interference during vertical lifting of the portion (127).
The method of claim 1,
The system box 130 includes a suction pump 131 for filtering rain water through the separation membrane 123a;
A backwashing device 134 for supplying a backwashing fluid such as air or water to the separator module 123 of the rainwater treatment unit 120; And
A water treatment apparatus for using rainwater, comprising a; a sewage pump 135 for pumping the discharged water backwashed with the separator 123a.

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