KR101087502B1 - Apparatus for integral water treatment - Google Patents

Abstract

PURPOSE: An integrated water treating apparatus is provided to facilitate the observation of the state of flocs and to control the mixing intensity of water without power by installing a coagulating bath on the outer circumference of a precipitating bath. CONSTITUTION: An integrated water treating apparatus includes a precipitating bath(110), a coagulating bath(120), and a filtering bath(130). The precipitating bath, the coagulating bath, and the filtering bath are integrated. A plurality of partitions is separately installed in the coagulating bath to form a plurality of spaces. A first channel and a second channel are formed on the upper side and the lower side of the partitions. A second hopper is formed at the lower side of one space of the spaces and is in connection with the lower side of the precipitating bath. Raw water mixed with a coagulating agent is supplied into the precipitating bath through the first channel. Flocs are supplied to the lower side of the precipitating bath through the second channel and the second hopper.

Description

Integrated water treatment device {APPARATUS FOR INTEGRAL WATER TREATMENT}

The present invention relates to an integrated water treatment device.

In general, the coagulation sedimentation process applying the physicochemical treatment in the water treatment process is composed of unit processes of pH adjustment, chemical reaction, coagulation and precipitation, and filtration in separate tanks, and each tank is equipped with a stirring drive device. It is in the form that there is.

1 is a view showing a treatment process of a wastewater treatment apparatus according to the prior art.

As shown in Figure 1, the reaction, flocculation and settling tank according to the prior art is a raw water storage unit (1) for storing the raw water, a coagulation auxiliary tank (2) containing a coagulation aid for coagulating foreign matter of the raw water, and Reaction tank (3) which receives raw water from the raw water storage unit (1), receives coagulation aid from the coagulation auxiliary tank (2), adds the action of a rotary blade, and causes a chemical reaction by the reaction tank (3). It comprises a settling tank (5) for filtering the sludge by receiving the influent, a concentration tank (6) for condensing the sludge filtered by the settling tank (5) and a filter press (70) to cake the concentrated sludge.

Such a conventional wastewater treatment apparatus is provided with a reaction tank (3), a flocculation tank (4) and a precipitation tank (5) for flocculating and precipitating the chemically treated influent, so that the appearance of the apparatus is very large. Have. That is, the conventional wastewater treatment apparatus has a sedimentation tank 5 having a larger appearance than other components, and has a flocculation tank 4 separately therein, and thus there is a problem that space utilization is not appropriate.

Therefore, in order to solve the above problems, it is possible to reduce the relative size of the flocculation tank and the settling tank, and to install the flocculation paper together in the settling tank to facilitate the movement, and also to apply a driving device for agitation to minimize the required power. It has been proposed.

However, such a device has a problem in that the flocculation tank is locked in water inside the sedimentation basin, so that it is difficult to expect the flocculation efficiency due to the low mixing energy according to the flow rate, and the adjustment of the mixing strength is not easy. In addition, it is possible to evaluate the flocculation effect through the state of the floc, which cannot be observed inside the sedimentation tank, and additional filtration and backwashing facilities are required for filtration, thereby requiring additional land area. .

One embodiment of the present invention is to form a single type of the flow type flocculation tank and filtration tank in the periphery of the settling tank to implement each unit process of conventional rapid mixing, flocculation, precipitation and filtration as a single system, the site area and installation cost It is an object of the present invention to provide an integrated water treatment apparatus that can be reduced.

In addition, an embodiment of the present invention is to provide an integrated water treatment device that can be installed on the outer periphery of the settling tank to facilitate the observation of the floc state and to control the mixing strength with no power.

In addition, an embodiment of the present invention is to install a plurality of diaphragm inside the flocculation tank for the smooth discharge of the floccule quickly settled in the flocculation tank, and to form a plurality of open channels in the upper and lower portions of the partition sludge It is an object of the present invention to provide an integrated water treatment device that can be easily discharged to the bottom of the sedimentation tank.

In addition, one embodiment of the present invention by washing the filtration tank using the sedimentation tank treated water flowing into the filtration tank, there is no need for a separate washing water, and further blows air into the lower portion of the filtration tank to facilitate the flocks attached to the fibrous media It is an object of the present invention to provide an integrated water treatment apparatus that can be detached easily.

An integrated water treatment device according to an embodiment of the present invention includes a settling tank having a reaction water inlet pipe at an upper portion thereof, and a sludge discharge pipe at a lower portion of the first hopper and a lower portion of the first hopper; Surrounding the upper outer surface of the sedimentation tank is provided so as to communicate at the same time, and installed a plurality of diaphragm spaced apart from each other at regular intervals therein to form a plurality of spaces, each of the first channel in the upper and lower portions of the plurality of diaphragms And a coagulation tank in which a second channel is formed; And a filtration tank installed between the plurality of spaces of the coagulation tank so as to communicate with an upper outer surface of the precipitation tank, wherein the precipitation tank, the coagulation tank, and the filtration tank are integrally formed, and the coagulation tank is any one of the plurality of spaces. A second hopper is formed in the lower portion of the space, the second hopper is in communication with the lower portion of the settling tank through the discharge pipe, the inline mixer is provided on one side of the coagulation tank, supplying raw water mixed with the coagulant from the inline mixer Receiving through the first channel to be supplied to the settling tank, the floc included in the mixed raw water is supplied to the lower portion of the settling tank through the second hopper and the floc discharge pipe through the second channel, The first channel is formed such that its width becomes smaller as the raw water flows. The intensity of mixing can be characterized by that be lower.

In addition, the in-line mixer is connected to the raw water collecting and pump-mounted water tank through the raw water supply line, a flow meter that can adjust the flow rate of the raw water mixed with the flocculant introduced into the flocculation tank between the in-line mixer and the flocculation tank Characterized in that is installed.

The settling tank is characterized in that formed in a cylindrical or polygonal shape.

The settling tank is provided with an outflow wear portion at the top, characterized in that for supplying the treated water treated in the settling tank to the filtration tank.

The outer surface of the precipitation tank is characterized in that the transparent glass is installed.

The reaction water inlet pipe is characterized in that one end thereof communicates with the agglomeration tank, and the other end thereof extends in the first hopper direction.

The outer periphery of the reaction water inlet pipe is characterized in that a plurality of main inclined plate formed to be inclined in the same direction and a plurality of auxiliary inclined plate formed to be inclined in the direction of the main inclined plate adjacent to a portion of the main inclined plate. .

The first channel is formed on one side of the upper portion of the plurality of diaphragm, the diaphragm adjacent to each other are alternately formed in the outer circumferential direction and the inner circumferential direction of the flocculation tank, or alternately in the upper and lower directions of the flocculation tank, The mixed raw water is characterized in that to maintain the zigzag flow.

The filtration tank is mounted on a partition provided between the outer surface of the settling tank and a filter for filtering the treated water flowing from the settling tank; A filtered water pipe provided at an outer circumference to discharge the filtered water filtered by the filter to the outside; A washing pipe spaced apart from the filtered water pipe and provided at an outer circumference of a position higher than the filtered water pipe to supply the treated water flowing from the settling tank; And a third hopper formed under the filter and having a plurality of air nozzles therein.

According to the present invention, by forming the integrated type of the wet type flocculation tank and filtration tank on the outer periphery of the settling tank by implementing each unit process of the conventional rapid mixing, flocculation, sedimentation and filtration as one system, the site area and installation cost can be reduced. Will be.

In addition, according to the present invention, by installing a water type flocculation tank on the outer periphery of the settling tank to facilitate the observation of the floc state, it is possible to control the mixing strength with no power.

In addition, according to the present invention, a plurality of diaphragm is installed inside the agglomeration tank for smooth discharge of the floccule settled quickly in the agglomeration tank, and a plurality of open channels are formed on the upper and lower portions of the diaphragm to facilitate the settling sludge. It can be discharged to the bottom of the settling tank.

In addition, according to the present invention, by washing the filtration tank using the sedimentation tank treated water flowing into the filtration tank, there is no need for a separate washing water, and further blows air into the lower part of the filtration tank to easily detach the flocks attached to the fibrous media. You can do it.

1 is a view showing a treatment process of a wastewater treatment apparatus according to the prior art.
2 is a view showing an integrated water treatment apparatus according to an embodiment of the present invention.
3 is a top view of the integrated water treatment apparatus of FIG. 2.
4A and 4B are views showing the structure of the plurality of diaphragms and the flow of raw water in the agglomeration tank of FIG. 2.
5 is a view showing the flow of raw water in the settling tank of FIG.
FIG. 6 is a view showing the filtration tank of FIG. 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

2 is a view showing an integrated water treatment device according to an embodiment of the present invention, Figure 3 is a top view of the integrated water treatment device of Figure 2, Figures 4a and 4b is a structure of a plurality of diaphragm inside the coagulation tank of Figure 2 and It is a figure which shows the flow of raw water, FIG. 5 is a figure which shows the flow of raw water in the settling tank of FIG. 2, and FIG. 6 is a figure which shows the filtration tank of FIG.

2 to 6, the integrated water treatment apparatus according to the embodiment of the present invention includes a settling tank 110, a flocculating tank 120, a filtration tank 130, the settling tank 110, the flocculating tank 120 ) And the filtration tank 130 is integrally formed to communicate with the outer surface of the settling tank 110, respectively.

On the other hand, the integrated water treatment apparatus removes foreign substances such as particulate matter (SS), organic matter (COD) and the like contained in the raw water in order to treat (that is, reuse) the raw water generated in the purified water, wastewater and civil engineering sites, etc. As an apparatus, the present invention relates to a low power integrated water treatment apparatus in which each unit process technology of conventional rapid mixing, flocculation, sedimentation, and filtration is constituted by one system. Here, the raw water means contaminated water generated from purified water, wastewater, and civil engineering works.

The settling tank 110 is provided with a reaction water inlet pipe 112 in the upper portion, the lower portion is provided with a sludge discharge pipe 117 at the lower end of the first hopper 116 and the first hopper 116. In addition, the settling tank 110 may be formed in a cylindrical or polygonal shape. In the present invention, the settling tank 110 is described as an example that is formed in a cylindrical shape. In addition, the settling tank 110 is provided with an outflow wear portion 114 at the top to supply the treated water treated in the settling tank 110 to the filtration tank 130.

One end of the reaction water inlet pipe 112 communicates with the agglomeration tank 120, and the other end thereof extends toward the first hopper 116. Although not shown, the reaction water inlet pipe 112 located at the inner center of the settling tank 110 is fixed through an inner wall of the settling tank 110 and a predetermined support bar. In addition, the outer periphery of the reaction water inlet pipe 112 is inclined in the direction of the main inclination plate 113a and the main inclination plate 113a adjacent to a partial region of the main inclination plate 113a. A plurality of auxiliary inclined plate 113b formed to be formed is formed. Here, the plurality of the main inclination plate 113a and the auxiliary inclination plate 113b may be installed by adjusting respective inclination angles according to the latitude of the area where the integrated water treatment apparatus is installed. By complicating the path of the treated water upward (see arrows in FIG. 5) through the plurality of main slope plates 113a and the auxiliary slope plates 113b, the precipitation efficiency can be improved. For example, the main inclination plate 113a is formed in a rectangular shape and attached to the reaction water inlet pipe 112 so that eight pieces are inclined by about 70 degrees, and the auxiliary inclination plate 113b is attached to the main inclination plate 113a. Can be installed to incline about 45 degrees. However, in the present invention, the shapes and angles of the main slope plate 113a and the auxiliary slope plate 113b are not limited. Therefore, in the present invention, by installing the main inclined plate 113a and the auxiliary inclined plate 113b in the central portion of the settling tank 110 can increase the settling efficiency, the sludge 119 thus precipitated is the first hopper 116 And the amount is controlled by the discharge valve 140 through the sludge discharge pipe 117 is discharged to the outside. In addition, the treated water of the settling tank 110 is collected through the outflow wear portion 114 is transported to the filtration tank 130.

On the other hand, the transparent glass 115 is provided on the outer surface of the settling tank 110. Therefore, the precipitation process of the raw water in the settling tank 110 can be easily observed from the outside through the transparent glass 115.

The agglomeration tank 120 is a wet type agglomeration tank provided to communicate with the surrounding outer surface of the settling tank 110 at the same time. The coagulation tank 120 has a shape so as to correspond to the shape of the precipitation tank 110, is formed integrally on the outer periphery of the precipitation tank 110. For example, when the settling tank 120 has a cylindrical cylinder shape, the inside of the coagulation tank 120 may be installed to correspond to the shape of the settling tank 110 so as to be installed at the outer circumference of the cylindrical cylinder. Can be formed into a cylindrical shape. In addition, the agglomeration tank 12 is provided with a plurality of partitions 121 to be spaced apart from each other at regular intervals to form a plurality of spaces, each of the first channel (top and bottom of the plurality of partitions 121, respectively) 121b) and second channel 121a are formed. In addition, the coagulation tank 120 has a second hopper 136 is formed in the lower portion of any one of the plurality of space, the second hopper 136 is the settling tank 110 through the floc discharge pipe 137 In communication with the lower part of.

Here, the first channel 121b is formed on one side of the upper portion of the plurality of diaphragms 121, and in the diaphragm adjacent to each other, the outer circumferential direction and the inner circumferential direction of the agglomeration tank 120, or the agglomeration tank. Alternatingly formed in the upper and lower directions of the 120, the mixed raw water can maintain the zigzag flow (see the arrows of Figures 3, 4A and 4B). In the present invention, for the smooth discharge of the floccule settled quickly in the flocculation tank 120, a passage such as the second channel 121a is made in the lower part of the diaphragm in the flocculation tank 120, and the bottom of the space of the final flocculation tank 120 The second hopper 136 to collect the settling sludge 119 may be installed to be discharged to the settling tank 110 at a predetermined interval. In addition, the floc is moved downward through the reaction water inlet pipe 112 in the center of the sedimentation tank 110, and the precipitation is performed while proceeding upward. In addition, the end portion of the first hopper 116 may be formed to be inclined at approximately 60 degrees to facilitate dispersion in the settling tank 110.

The agglomeration tank 120 as described above divides the first channel 121b formed on the upper portion of the plurality of diaphragms 121 into two or three stages, thereby lowering the mixing strength step by step. This approach is also referred to as tapered flocculation. For example, referring to FIG. 4B, in order to configure the coagulation tank 120 in three stages, six diaphragms (① to ⑥) are classified into three stage groups, and the diaphragms (① to ②) belonging to the first stage group. Is designed to apply 50 ~ 60 / sec, which is a relatively high mixing strength, and the diaphragm (③ ~ ④) belonging to the second stage group applies 30 ~ 40 / sec, which is relatively lower than the first stage group. Designed to be able to do, and the diaphragm (⑤ ~ ⑥) belonging to the third stage group may be designed to give a mixed strength of 10 ~ 20 / sec, which is a relatively lower than the second stage group. That is, the widths or areas of the first channels 121b ₁ to 121b ₆ of the diaphragm divided into the third step group may be differently designed according to Equations 1 to 2 below. On the other hand, when the flocculation tank 120 is shown as consisting of nine diaphragm (① ~ ⑨) as shown in Figure 4a, the first stage group is ① ~ ③, the second stage group is ④ ~ ⑥ The third step group will correspond to ⑦ ~ ⑨.

Here, the basic theoretical formula for deriving the mixing strength is applied to the equation of camp and Stein as shown in [Equation 1] below, and the equation for the wet type mixing strength is applied to [Equation 2] modified from [Equation 1] It is possible to calculate and apply the diaphragm opening and closing area for the admixture strength by adjusting the water supply standards (2004).

Calculation of G value

[Equation 1]

[Equation 2]

In this case, the equation for calculating head loss in Equation 2 is as follows.

Here, G is the mixing strength (1 / sec), g is the acceleration of gravity, h is the head loss, V is the capacity of the flocculation tank 120, Q is the inflow flow rate.

In addition, in order to smoothly discharge the floccule settled quickly in the flocculation tank 120, a second channel 121a is formed at the lower part of the diaphragm in the flocculation tank 120, so that Allow 3-5% to pass down.

On the other hand, one side of the coagulation tank 120 is provided with an in-line mixer 20. The in-line mixer 20 is connected to the water tank through which the raw water is collected and the pump 10 is mounted through the raw water supply line, so that the raw water and the flocculant and the acid alkali agent are instantaneously mixed therein. The instantaneous mixed raw water and the flocculant and the acid alkali agent flow into the flocculation tank 120 which is non-powered to form a large and hard floc that is easy to settle. On the other hand, in the conventional integrated coagulation sedimentation apparatus for treating tunnel wastewater, etc., the coagulation tank 120 is inside the sedimentation tank 110, so that the coagulation state is difficult to observe and there is a difficulty in controlling the mixing strength. In the present invention, by installing a flow meter 30 between the in-line mixer 20 and the flocculation tank 120, it is possible to control the flow rate of the raw water mixed with the flocculant flowing into the flocculation tank 120. That is, in the present invention, by installing the water type flocculation tank 120 outside the settling tank 110 to facilitate the observation of the floc state, it is possible to control the mixing strength with no power.

Therefore, the coagulation tank 120 receives raw water mixed with the coagulant from the in-line mixer 20 to pass through the first channel 121b to supply the precipitation tank 110 to the mixed raw water. The included floc passes through the second channel 121a and is supplied to the lower portion of the settling tank 110 through the second hopper 136 and the floc discharge pipe 137.

Therefore, the integrated water treatment device of the present invention installs a water type flocculation tank 120 at the outer periphery of the precipitation tank 110 to facilitate the observation of the floc state and control the mixing strength with no power, and further, the flocculation tank 120. A plurality of diaphragms 121 are installed in the agglomeration tank 120 and a plurality of open channels 121a and 121b are formed at the upper and lower portions of the diaphragm 121 for the smooth discharge of the floccules quickly settled therein. The sedimentation sludge can be easily discharged to the sedimentation tank 110.

The filtration tank 130 is integrally formed to communicate with the upper outer surface of the precipitation tank 110 between a plurality of spaces of the coagulation tank 120. That is, the filtration tank 130 is designed to be integral with each other to communicate with each other between the coagulation tank 120 of the outside of the settling tank 110. The filtration tank 130 may be a fiber filtration tank 130 that does not require a separate inflow pump, but the present invention is not limited to the kind of the filtration tank 130.

The filtration tank 130 includes a filter 131, a partition 132, a blower 133, a filtered water pipe 134, a washing pipe 135, and a third hopper 139. Although not shown, the filtration tank 130 is a ware capable of adjusting the influent water level, treated water discharge pipes and valves, pipes and valves for backwash water discharge, piping and valves for rinsing, treated water valves, air blowers and inlet pipes. And a valve can be installed.

The filter 131 is mounted to the partition 132 provided between the outer surface of the settling tank 110 and filters the treated water flowing from the settling tank 110. A blower 133 is installed on the upper part of the filter 131 to blow off air to the lower part of the filter 131 in order to increase the backwashing efficiency of the filtration tank 130 to detach the flocks attached to the fibrous media. It becomes possible.

The filtered water pipe 134 is provided on the outer circumference thereof to discharge the filtered water filtered by the filter 131 to the outside.

The washing pipe 135 is spaced apart from the filtered water pipe 134 and provided on the outer circumference of a position higher than the filtered water pipe 134 to supply the treated water flowing from the settling tank 110. Therefore, in the present invention, by washing the filtration tank 130 by using the treated water introduced into the filtration tank 130, the separate washing water is not necessary, and further, the air is blown into the filtration tank 130 to blow the fibers. The floe attached to the media can be easily detached. That is, in the present invention, a separate washing water is not required for back washing, and the treated water of the settling tank 110 flowing into the filtration tank 130 is used. At this time, the treated water valve of the filtration tank 130 is closed, the backwash outlet valve is opened to be transferred to the concentration tank. In addition, in order to increase the backwashing efficiency, a blower attached to the fibrous media may be detached by blowing air through the air filter below to operate the blower and air below the filter.

The third hopper 139 is formed under the filter 131 and has a plurality of air nozzles 138 therein. The air nozzle 138 may inject air into the lower portion of the filter 131 to detach solids (for example, cement, etc.) attached to the third hopper 139.

Therefore, the integrated water treatment device according to the present invention configured as described above is formed by integrally forming a water type flocculation tank and a filtration tank on the outer periphery of the settling tank by implementing each unit process of conventional rapid mixing, flocculation, precipitation and filtration as one system. This will reduce site area and installation costs.

What has been described above is just one embodiment for implementing the integrated water treatment apparatus according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following claims, the gist of the present invention Without departing from the scope of the present invention, any person having ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

10: pump 20: inline mixer
30: flow meter 110: settling tank
112: reaction water inlet pipe 113a: main slope plate
113b: auxiliary inclined plate 114: leaked wear portion
115: transparent glass 116: first hopper
117: sludge discharge pipe 120: coagulation tank
121: plate 130: filter tank
131: filter 132: partition
133: blower 134: filtered water pipe
135: washing piping 136: the second hopper
137: floc discharge pipe 138: air nozzle
139: third hopper

Claims (9)

A settling tank having a reaction water inlet pipe at an upper portion thereof, and a sludge discharge tube at a lower portion of the first hopper and a lower portion of the first hopper;
Surrounding the upper outer surface of the sedimentation tank is provided so as to communicate at the same time, and installed a plurality of diaphragm spaced apart from each other at regular intervals therein to form a plurality of spaces, each of the first channel in the upper and lower portions of the plurality of diaphragms And a coagulation tank in which a second channel is formed; And
It is an integrated water treatment apparatus in which the sedimentation tank, the aggregation tank and the filtration tank is integrally formed, including a filtration tank installed to communicate with the upper outer surface of the precipitation tank between the plurality of spaces of the flocculation tank,
The coagulation tank has a second hopper is formed in the lower portion of any one of the plurality of spaces, the second hopper is in communication with the lower portion of the settling tank through the floc discharge pipe,
An inline mixer is provided at one side of the coagulation tank to receive raw water mixed with the coagulant from the inline mixer to pass through the first channel to supply the sedimentation tank, and the floc included in the mixed raw water is the second channel. Through the second hopper and the floc discharge pipe to be supplied to the lower portion of the settling tank,
And the first channel is formed to be smaller in width in a direction in which the raw water flows to lower the mixing strength of the raw water. The method of claim 1,
The inline mixer is connected to the raw water collecting and pumping sump tank through the raw water supply line,
An integrated water treatment device is provided between the in-line mixer and the flocculation tank, the flow meter being capable of adjusting the flow rate of the raw water mixed with the flocculant flowing into the flocculation tank. The method of claim 1,
The settling tank is an integrated water treatment device, characterized in that formed in a cylindrical or polygonal shape. The method of claim 1,
The settling tank is provided with an outflow wear portion at the top of the integrated water treatment device, characterized in that for supplying the treated water treated in the settling tank to the filtration tank. The method of claim 1,
An integrated water treatment device, characterized in that the transparent glass portion is provided on the outer surface of the settling tank. The method of claim 1,
The reaction water inlet pipe has one end communicating with the agglomeration tank, and the other end thereof is formed extending in the direction of the first hopper. The method of claim 6,
The outer periphery of the reaction water inlet pipe is formed with a plurality of main inclined plate formed to be inclined in the same direction and a plurality of auxiliary inclined plate formed to be inclined in the direction of the main inclined plate adjacent to a portion of the main inclined plate, characterized in that Integrated water treatment device. The method of claim 1,
The first channel is formed on one side of the upper portion of the plurality of diaphragm, the diaphragm adjacent to each other are alternately formed in the outer circumferential direction and the inner circumferential direction of the flocculation tank, or alternately in the upper and lower directions of the flocculation tank, An integrated water treatment device, characterized in that to allow the mixed raw water to maintain the zigzag flow. The method of claim 1,
The filtration tank is mounted on a partition provided between the outer surface of the settling tank and a filter for filtering the treated water flowing from the settling tank; A filtered water pipe provided at an outer circumference to discharge the filtered water filtered by the filter to the outside; A washing pipe spaced apart from the filtered water pipe and provided at an outer circumference of a position higher than the filtered water pipe to supply the treated water flowing from the settling tank; And a third hopper formed under the filter and having a plurality of air nozzles therein.

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