KR102702059B1 - A system for water treatment which recycle water using high speed oxidation and composite separating process - Google Patents

Abstract

The present invention relates to a water circulation treatment system using a high-speed oxidation and composite separation process, which is installed to sequentially supply raw water supplied from a raw water storage tank composed of any one of a rainwater tunnel, a rainwater storage facility, and an LID facility to a multi-treatment facility, wherein the multi-treatment facility is composed of at least one selected from a high-speed oxidation reaction device, a coagulation device, an inclined sedimentation device, and an adsorption filtration device.

Description

{A system for water treatment which recycle water using high speed oxidation and composite separating process}

The present invention relates to a water circulation treatment system using a high-speed oxidation and a combined separation process, which is installed to sequentially supply raw water supplied from a raw water storage tank consisting of one of a rainwater tunnel, a rainwater storage facility, and a LID facility to a multi-treatment facility, and the multi-treatment facility comprises at least one selected from a high-speed oxidation reaction device, a coagulation device, a gradient sedimentation device, and an adsorption filtration device.

Precipitation in our country varies greatly by season and region, and is concentrated in the summer.

In addition, as the intensity of droughts increases due to the increase in concentrated heavy rains as a global environmental factor, the problems of damage prevention and water demand are increasing.

In addition, in preparation for heavy rains like the above, large-scale deep rainwater tunnels are being built in urban areas, and large-scale rainwater storage tanks or LID facilities are being built along riverbanks.

However, these tunnels and reservoirs are focused on drainage as a disaster prevention facility against flooding and inundation, so the stored water resources are not utilized and are instead drained into rivers, resulting in a waste of water resources.

A technology for a water treatment device capable of recycling water resources stored in relation to such technology is presented in a water treatment system in the prior art patent No. 1206905, and its configuration is as shown in Fig. 1. The water treatment system is largely composed of a water collection tank (10), a plasma discharge reaction device (20), a floc formation tank (30), and a pressurized flotation tank (100).

And, the raw water to be treated is stored in the collecting tank (10), and a raw water transfer pump (11) for pressurizing and transferring the raw water is provided in the collecting tank (10), and the raw water transfer pump (11) transfers the raw water in the collecting tank (10) to a plasma discharge reaction device (20) including a grounding pipe, a discharge electrode, and a power supply unit.

In addition, after foreign substances are primarily decomposed and removed in the plasma discharge reaction device (20), the raw water from which foreign substances are primarily decomposed and removed is introduced into a floc formation tank (30) to form flocs, and the flocs are combined with bubbles in a pressurized flotation tank (100) to float and are discharged as scum.

However, the water treatment device as described above has a disadvantage in that the treatment time increases because the water must pass through the collection tank (10), plasma discharge reaction device (20), floc formation tank (30), and pressurized flotation tank (100) in sequence regardless of the state of the raw water.

The purpose of the present invention to improve the above-mentioned conventional problems is to provide a water circulation treatment system using a high-speed oxidation and composite separation process that treats incoming raw water so that it can be used as a water resource for various purposes, secures a certain level of water quality or higher so that the usability of water can be increased, reduces operating costs while implementing a desired purification capacity through selective purification treatment, and obtains a desired amount of water when linked with a large-scale facility.

In order to achieve the above object, the present invention is installed so that raw water supplied from a raw water storage tank consisting of one of a rainwater tunnel, a rainwater storage facility, and a LID facility is sequentially supplied to a multi-treatment facility, and the multi-treatment facility is composed of at least one selected from a high-speed oxidation reaction device, a coagulation device, a gradient sedimentation device, and an adsorption filtration device.

The above high-speed oxidation reactor provides a water circulation treatment system utilizing a high-speed oxidation and composite separation process, which is equipped with a non-powered scum remover that rotates according to the supplied flow rate while forming a plurality of cylindrical flow walls extending from the center to the outer diameter.

And, the high-speed oxidation reaction device supplies ozone, which is generated by an ozone generator and whose pressure is controlled by a variable pressure tank, mixed with raw water supplied from a raw water storage tank when the transfer pump is driven.

It is installed so that the water flow is directed from the center to the outer diameter through multiple flow walls connected to the inclined plates to minimize confusion.

A water circulation treatment system using a high-speed oxidation and composite separation process is provided, in which one of the above-mentioned filtration walls has a separation plate installed at the upper part to collect scum or to separate and discharge treated raw water.

In addition, the above-described non-powered scum generator is provided with a cone-shaped rotating block that is positioned at the center of the first tank and is capable of non-powered rotation by rising hydraulic pressure, and a spiral projection is provided on the periphery of the rotating block, and a blade that removes scum is connected to the upper portion thereof, thereby providing a water circulation treatment system using a high-speed oxidation and composite separation process.

In addition, the above-mentioned inclined plate floating separation device is installed so as to enable the supply of fine air through a blower, and provides a water circulation treatment system using a high-speed oxidation and composite separation process in which a plurality of triangular flow walls are positioned diagonally to form a zigzag flow path to increase the reaction time.

And, the above adsorption filter device is installed so that multiple filter modules are detachably separated on the inside of the filter cartridge.

A water circulation treatment system utilizing a high-speed oxidation and composite separation process is provided, in which a nozzle is provided at the bottom of the above filter cartridge to disperse raw water and facilitate penetration.

In addition, the above multi-processing installation is installed with a separate measuring device to measure the state of the treated water so that automatic control is possible, and the turbidity, the content of suspended solids, the content of phosphorus, the content of organic matter, etc. are measured in the inclined plate flotation separation device.

It is installed to measure the total number of coliform bacteria, odor, color, organic matter content, etc. in the above high-speed oxidation reaction device.

It is installed to measure the content of fine suspended matter and trace organic matter in the above adsorption filter device,

The measurement value is provided by a water circulation treatment system using a high-speed oxidation and composite separation process, which is installed so that the control unit of the water circulation treatment system equipped with a communication module performs control over the operation and treatment water supply when the program is installed, and the operating status can be grasped and remotely controlled.

As described above, according to the present invention, the inflowing raw water is treated and utilized as a water resource for various purposes, the water quality is secured above a certain level to increase the usability of the water, the desired purification capacity is implemented through selective purification treatment while reducing operating costs, and the desired amount of water can be obtained by linking with a large-scale facility.

Figure 1 is a schematic diagram illustrating a conventional water treatment system.
Figure 2 is a schematic diagram illustrating a water treatment system according to the present invention.
Figure 3 is a water treatment work flow chart according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the attached drawings.

As illustrated in FIGS. 2 and 3, the present invention is installed so that raw water supplied from a raw water storage tank (1) consisting of one of a rainwater tunnel, a rainwater storage facility, and a LID (Low Impact Development) facility is supplied to a multi-treatment facility (G) by a transfer pump (2).

The above multi-processing facility (G) is composed of at least one selected from a high-speed oxidation reaction device (10), a coagulation device (K), an inclined plate flotation separation device (20), and an adsorption filtration device (30).

At this time, the high-speed oxidation reaction device (10), coagulation device (K), inclined sedimentation device (20), and adsorption filtration device (30) are installed so that raw water is supplied sequentially.

In addition, the high-speed oxidation reaction device (10) is equipped with a non-powered scum remover (13) that rotates according to the supplied flow rate while forming a plurality of distinct flow walls (11) that extend from the center of the cylindrical first tank toward the outer diameter.

At this time, the high-speed oxidation reaction device (10) is installed to mix ozone, which is generated by an ozone generation device (110) and whose pressure is controlled by a variable pressure tank (130), with raw water supplied from a raw water storage tank and supply it to a mixed water supply unit (12).

And, the ozone supplied to the variable pressure tank (130) is supplied to the outside through a reuse pump (41) of the treated water of the final tank (40) where the treatment is completed or through a circulation water pump (100) and mixed by a gas-liquid mixing mixer (120) and then supplied as ozone water.

In addition, the high-speed oxidation reaction device (10) is installed so that the water flow changes from the center to the outer diameter through a plurality of flow walls (11) to which inclined plates (11-1) are connected so that mixing is minimized.

At this time, a separator plate (14)(15) connected to one of the above-mentioned scum walls (11) or to the upper part of the tank is installed to separate and collect the removed scum or to separate and discharge the treated raw water.

In addition, the above-mentioned non-powered scum remover (13) is formed as a cone-shaped rotating block that is positioned at the center of the first tank and is capable of non-powered rotation by rising hydraulic pressure, and a spiral baffle (13-1) is provided around the rotating block, and a wing (13-2) for removing scum is connected to the upper portion.

In addition, a coagulation device (K) is further provided to coagulate and remove foreign substances in the ozone-treated water in the oxidation reaction device.

At this time, the coagulation device (K) is composed of a plurality of stirrers (22)(24) that are stirred by motors (22)(24) with different rotation speeds, and the second tank is composed of rapid or slow coagulation tanks (21)(23), and is installed to automatically inject chemicals through an automatic chemical injection device (240).

Continuing, the flocs, etc. in the treated water that is coagulated in the above coagulation device are treated through the inclined plate flotation separation device (20).

And, the above-mentioned inclined plate separation device is installed so that air is supplied in a fine state through a distributor (26) via a blower (220), and a plurality of triangular inclined baffles (25) are installed diagonally to form a zigzag flow path to increase the reaction time in the input section of the second tank (not shown).

In addition, a sloping plate separation unit (200) is installed horizontally on the inside of the second tank, a separate scum remover (230) is provided on the upper side, and a scum collection unit (27) is further provided to separate and collect the scum removed on one side of the second tank.

In addition, the water treated in the second tank is installed so that it is supplied to the adsorption filter device (30) through the inflow ware (31) when collected in the treated water collection unit (28).

Continuing, the above adsorption filter device (30) is installed so that a plurality of filter modules (32) are detachably divided into the inner side of the filter cartridge (33) provided on the inner side of the third tank (not shown).

At this time, a wear (30-2) is provided on the upper part of the filter cartridge (33) to disperse the raw water and facilitate penetration, and a nozzle (30-1) that operates upward for reverse washing of the adsorption filter is provided on the lower part.

Meanwhile, the sludge, etc. that settles in the high-speed oxidation reaction device (10), the inclined plate flotation separation device (20), and the adsorption filtration device (30) as described above is installed to be collected in a concentration tank (50), and the sludge is compressed through a filter press (52) and then transported to a landfill site for landfill treatment.

In addition, the above multi-processing installation (G) installs a separate measuring device (not shown) for measuring the state of the treated water so that automatic control is possible in at least one selected from among the high-speed oxidation reaction device (10), the coagulation device (K), the inclined plate flotation separation device (20), and the adsorption filtration device (30).

At this time, the measuring device is installed to measure turbidity, suspended solids content, phosphorus content, and organic matter content in the inclined plate flotation separation device, is installed to measure total coliform bacteria count, odor, color, organic matter content, etc. in the high-speed oxidation reaction device, and is installed to measure the content of fine suspended solids and trace organic matter in the adsorption filtration device.

Additionally, the measuring instrument is connected to a control unit (not shown).

At this time, the control unit is equipped with a communication module (not shown) to enable remote transmission of the current state and remote input of a control signal while a control program for the operation of the high-speed oxidation reaction device (10), the coagulation device (K), the inclined plate flotation separation device (20), and the adsorption filtration device (30) and the supply of raw water according to the measured values of the measuring device is installed.

And, it is installed to perform the functions of grasping the operating status and remote control while controlling the operation and treatment water supply by the above control unit.

The operation of the present invention having the above configuration is described.

As shown in FIGS. 2 and 3, the present invention treats raw water supplied from a raw water storage tank comprised of one of a rainwater tunnel, a rainwater storage facility, and a LID facility, thereby easily obtaining a required amount of water and recycling it.

In addition, the high-speed oxidation reaction device (10) uses the oxidation power of ozone to remove total coliform bacteria, odor, color, and organic matter by inducing a circulation flow so that mixing and contact between raw water and ozone are effectively achieved, thereby securing contact time and reaction time with ozone, thereby implementing direct oxidation by ozone and indirect oxidation by OH radicals, thereby increasing the disinfection and sterilization effect.

In addition, the high-speed oxidation reaction device (10) is configured to form a flow with a constant directionality by attaching a flow wall (11) with different heights at regular intervals from the center to the outer wall while securing a cone-shaped internal space by sloping from the side to the center.

At this time, the first flow wall (11) based on the center performs the role of a wall that guides the flow of fluid upward in the section where the mixed water of raw water and ozone water flows in, thereby rotating the non-powered scum remover (13) installed at the upper point.

And, as the fluid flows clockwise through the spiral baffle (13-1) attached to the lower cone of the non-powered scum remover (13), the fluid flows downward through the space between the second guiding wall and the outer inclined plate (11-1) at the top of the guiding wall.

In addition, as the fluid flows downward between the first and second flow walls as described above, the fluid is circulated in a zigzag pattern in the up-and-down direction by the inclined plates attached to the lower or upper portion of each wall, thereby increasing the movement time and contact area of the fluid in a small space, thereby allowing the oxidation process by ozone and OH radicals to sufficiently occur.

In addition, the non-powered scum remover (13) located at the upper center of the high-speed oxidation reactor (10) is rotatably fixed to a support and has a lower portion formed in a cone shape, and a spiral baffle (13-1) is attached to the cone slope to induce the flow of the mixed water and, at the same time, use the force to rotate clockwise without power without separate electric power to push out and remove floating scum composed of pollutants of raw water attached to microbubbles.

Continuing, the above-mentioned inclined plate flotation separation device (20) removes turbidity, suspended solids, phosphorus and organic matter through a physicochemical treatment method using coagulation, flotation and sedimentation processes using chemicals, and reduces the device area so that flotation separation using microbubbles and inclined plate sedimentation can be performed in one device.

At this time, the inclined plate flotation separation device (200) is a horizontally installed inclined plate separation unit (200) inside the second tank that induces the flow of fluid upward in an “S” shape by attaching an inclined baffle (25) between the first and second flow walls, so that the fluid can flow horizontally in the upper part of the device, and the flotation separation effect causes the flotation and attached flots to float in the upper part of the device and are collected and discharged by the scum remover (230) into the scum collection unit (27), and the fluid that was flowing horizontally is circulated downward by the wall, thereby increasing the sedimentation efficiency through the multi-layer sedimentation tank effect by the inclined plate separation unit (200) installed in the middle of the device, thereby allowing heavy flotation and separation to sink to the bottom of the device.

In addition, the above adsorption filter device (30) is equipped with a plurality of filter modules (32) that can be exchanged in a cartridge (33) and uses activated carbon and a fluidized media to remove fine suspended substances and trace organic substances through a physical treatment process of adsorption and filtration using a bottom-up cleaning method.

At this time, modular management of the adsorption filter is possible through the above-mentioned filtration module (32), and since it can be easily taken out of the tank, it prevents people from entering the tank for filter material replacement and cleaning, and also prevents the device from being operated out of the tank.

K...Coagulation device G...Multi-processing facility
2...Transfer pump 10...Raw water storage tank
20...Incline plate floating separation device 30...Adsorption filter device

Claims (6)

It is installed to sequentially supply raw water from a raw water storage tank consisting of a rainwater tunnel, rainwater storage facility, or LID (Low Impact Development) facility to a multi-treatment facility.
The above multi-processing facility is equipped with a high-speed oxidation reaction device, a coagulation device, an inclined plate flotation separation device, and an adsorption filtration device, and is installed so that raw water is supplied sequentially.
The above high-speed oxidation reaction device is,
a) A non-powered scum remover is provided at the upper center of the flow wall so as to rotate by the supplied flow velocity while forming a plurality of flow walls directed toward the outer diameter from the center of the cylindrical first tank,
b) When the transfer pump is operated, ozone generated by the ozone generator and the pressure of which is controlled by the variable pressure tank is mixed and supplied to the raw water supplied from the raw water storage tank.
c) The inclined plate is connected to the upper or lower side to minimize the mixing, and is installed so that the water flow changes from the center to the outer diameter through multiple flow walls of different heights.
d) A separator plate is installed on the upper part of one of the above-mentioned drainage walls to collect scum or to separate and discharge the treated raw water.
The above non-powered scum remover is,
a) A spiral baffle is provided around the cone-shaped rotating block to enable non-powered rotation by hydraulic pressure, located at the upper center of the first tank.
b) A wing for removing scum is connected to the upper part of the above rotating block,
The above-mentioned inclined plate floating separation device is a water circulation treatment system utilizing a high-speed oxidation and composite separation process, in which a plurality of triangular flow-through walls are positioned diagonally so that the fluid can flow horizontally from the upper part of the device while inducing the flow of fluid upward in an S shape to increase the reaction time when installed so that the supply of fine air through a blower is possible, and an inclined plate separation unit is installed horizontally on the inside of a second tank. delete delete delete In the first paragraph, the adsorption filter device is installed such that a plurality of filter modules are detachably separated on the inside of the filter cartridge.
A water circulation treatment system using a high-speed oxidation and composite separation process, characterized in that the upper part of the filter cartridge is provided with an inlet ware for dispersing raw water to facilitate penetration, and the lower part is provided with a nozzle that operates upward for reverse washing of the adsorption filter. In the first paragraph, the multi-processing facility is installed to measure the status of turbidity and color by installing a separate measuring device to measure the status of the treated water so that automatic control is possible.
A water circulation treatment system using a high-speed oxidation and composite separation process, characterized in that the measurement value is installed so that the control unit equipped with a communication module performs control over the operation and treatment water supply when the program is installed, and the operating status can be grasped and remotely controlled.

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