KR101233696B1 - Apparatus for treating water and apparatus for treating waste water using the same - Google Patents

Abstract

The present invention relates to a water treatment apparatus and a wastewater treatment apparatus using the same, comprising: a water treatment apparatus for collectively treating neutralization and particulate aggregation of wastewater from which solids are removed, and a first line mixer in which wastewater from which solids are removed, a neutralizing agent, and a flocculant are mixed; A neutralization reactor for neutralizing the wastewater mixed with the neutralizing agent, a second line mixer in which the neutralized wastewater and the auxiliary coagulant are mixed, an agglomeration reactor for the coagulation reaction of the wastewater in which the auxiliary coagulant is mixed, and a particle separation from the aggregated wastewater. It includes a particle separator, the neutralization reactor, the flocculation reactor and the particle separator is characterized in that it is kept in a closed state blocked from the outside. Therefore, the present invention maintains the neutralization reactor, the flocculation reactor, and the particle separator in a sealed state, which is blocked from the outside, thereby preventing the external discharge of odors or contaminants generated during wastewater treatment, and the flow rate of the pump head is generated. Therefore, the mixing, flocculation, and coagulation of the neutralizing agent and the flocculant are performed by the residence time and the baffle in the reaction tank, thereby providing the effect of collectively simplifying and integrating the inflow and outflow of the wastewater.

Description

Water treatment apparatus and wastewater treatment apparatus using the same {Apparatus for treating water and apparatus for treating waste water using the same}

The present invention relates to a water treatment apparatus and a wastewater treatment apparatus using the same, and more particularly, to a water treatment apparatus for neutralizing and coagulating particulate water from solid wastes, and a wastewater treatment apparatus using the same.

To prevent water shortages In order to reuse effluents such as sewage and wastewater treated water for various purposes, researches on recycling processes and systems using effluent from sewage treatment plants and wastewater treatment plants as raw water are being conducted.

In order to reuse effluent water, it is necessary to remove suspended solids, viruses, dissolved solids, hardly decomposable substances, odors, and colors in the effluents. In general, a membrane separation process or an activated carbon adsorption process using a separator is mainly used for reuse of the effluent.

However, the effluent contains a large amount of suspended solids that do not settle in the sedimentation tank after biological treatment of sewage treatment or wastewater treatment plants. In addition, if the bulking phenomenon occurs in the treatment plant, or if the inflow rate increases rapidly due to rainfall in the sewage treatment plant where the conduit is installed, the amount of suspended solids in the effluent is not only increased, but also the various floating and dissolved pollutants contained in the rainwater are discharged. There is a problem involved.

These suspended substances are often attached to the membrane or activated carbon used in the wastewater treatment process and grow.These suspended substances not only reduce the treatment performance of the membrane but also increase the treatment cost by accelerating the exchange cycle of the membrane and the adsorption media. There is a problem.

In addition, in the conventional wastewater treatment apparatus, when the wastewater is treated, the sludge of large particles is separated and discharged from the pretreatment process, that is, the sedimentation tank using the screen method or the gravity sedimentation method.

In this way, the wastewater from which the sludge of large particles is removed is subjected to the flocculation treatment to separate and collect contaminants after chemical treatment for pH adjustment, and then treated with activated sludge for decomposition of residual organic matter.

However, such a conventional wastewater treatment device requires a pretreatment facility such as a sedimentation tank when treating a substance harmful to microorganisms, strong acid or strong alkaline wastewater, and requires excessive facility space for the wastewater treatment. Not only is it released, there is a problem that the wastewater treatment efficiency is lowered.

The present invention has been made to solve the conventional problems as described above, it is possible to prevent the external discharge of odor or contaminants generated during the wastewater treatment, it is possible to integrate and simplify the wastewater inflow to outflow in a batch process It can improve the flocculation reaction efficiency of wastewater, can make the scale of wastewater treatment compact, improve the wastewater treatment efficiency, and use sludge as a catalyst to make the coagulation tubercle during the flocculation reaction of particles. In order to provide a water treatment apparatus and a wastewater treatment apparatus using the same, it is possible to improve the holding force of the sealed state, which is blocked from the outside, to drastically reduce the amount of flocculant input, and to reduce the installation of power means for the flow of the wastewater. For that purpose.

According to an aspect of the present invention, there is provided a water treatment apparatus for collectively treating neutralization and particulate aggregation of wastewater from which solids have been removed, comprising: a first line mixer in which the wastewater from which the solids have been removed, a neutralizing agent, and a flocculant are mixed; A neutralization reactor for neutralizing the wastewater mixed with the neutralizing agent; A second line mixer in which the neutralized wastewater and the auxiliary coagulant are mixed; An agglomeration reactor for agglomerating the wastewater mixed with the auxiliary coagulant; And a particle separator separating the particles from the agglomerated wastewater, wherein the neutralization reactor, the agglomeration reactor, and the particle separator are maintained in a closed state separated from the outside.

The flocculation reactor of the present invention comprises a rapid reactor for rapidly coagulating the wastewater in which the auxiliary coagulant is mixed and a slow reactor for slow coagulation reaction in the wastewater in which the coagulant is mixed.

The particle separator of the present invention, the waste water is injected into the main body; An inlet formed in the upper portion of the main body to be introduced while forming waste water vortex; A solid outlet configured to narrow a passage at a lower portion of the main body to discharge the discharged water including the solid downward; A treated water outlet configured to discharge the treated water upward from the inner center of the main body; And a vortex blade installed on the inner wall of the main body to form a vortex in the wastewater introduced into the main body.

Part of the solids discharged water discharged downward from the particle separator of the present invention is partially returned to the first line mixer.

The first line mixer, the neutralization reactor, the second line mixer, the flocculation reactor and the particle separator of the present invention are integrally provided in one casing.

In addition, the present invention is a wastewater treatment apparatus using the above-described water treatment apparatus, including: a sediment removal unit for removing the solids contained in the wastewater before input to the water treatment apparatus; A flow rate adjusting unit for storing the wastewater from which the solids have been removed and adjusting the flow rate of the wastewater flowing into the water treatment apparatus; And a sludge treatment unit for concentrating and discharging the sludge generated in the water treatment device to the outside.

The sediment removal unit of the present invention, the waste water is injected into the main body; An inlet formed in the upper portion of the main body to be introduced while forming waste water vortex; A solid outlet configured to narrow a passage at a lower portion of the main body to discharge the discharged water including the solid downward; A treated water outlet configured to discharge the treated water upward from the inner center of the main body; And a vortex blade installed on the inner wall of the main body to form a vortex in the wastewater introduced into the main body.

The flow rate adjusting unit of the present invention is provided with a flow rate control pump for controlling the flow rate of the wastewater flowing into the water treatment apparatus.

As described above, the present invention is maintained in a closed state in which the neutralization reactor, the flocculation reactor, and the particle separator are blocked from the outside in the water treatment device, thereby preventing the external discharge of odors or contaminants generated during wastewater treatment, and pump pump As the flow rate is generated, mixing, flocculation, and condensation of the neutralizing agent and the flocculant are performed by the residence time and the baffle in the reaction tank, thereby providing the effect of integrating and simplifying the inflow and outflow of the wastewater.

In addition, it is possible to improve the flocculation efficiency by treating the flocculation reaction of the waste water with a rapid reactor and a slow reactor.

In addition, it is possible to omit the sedimentation basin by applying a cyclone-type particle separator when separating the solids, it is possible to compact the scale of wastewater treatment and improve the wastewater treatment efficiency.

Part of the solids discharged water is returned, and the sludge contained therein reduces the amount of neutralizer used, and the coagulation of the coagulation nuclei is used as a catalyst.

The first line mixer, the neutralization reactor, the second line mixer, the coagulation reactor, and the particle separator of the water treatment device are integrally provided in one casing, whereby the holding force of the sealed state blocked from the outside can be improved.

After removing most of the particles in the wastewater through the rapid vortex and cyclone type particle separators, the flocculant is added to the fine particles, thereby dramatically reducing the amount of flocculant input and improving the wastewater treatment efficiency.

In the wastewater treatment process, a flow control pump installed in the flow rate adjusting unit performs a flow and treatment process of the wastewater by the positive pressure of the pump from the inflow to the outflow of the wastewater, thereby reducing the installation of power means for the flow of the wastewater.

1 is a block diagram showing a water treatment apparatus and a wastewater treatment apparatus using the same according to an embodiment of the present invention.
Figure 2 is a block diagram showing a particle separator of the water treatment device according to an embodiment of the present invention.
3 is a flow chart showing a wastewater treatment apparatus using a water treatment apparatus according to an embodiment of the present invention.
Figure 4 is a block diagram showing the sedimentation removal portion of the wastewater treatment apparatus using a water treatment apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail a water treatment apparatus of a preferred embodiment of the present invention.

1 is a block diagram showing a water treatment apparatus and a wastewater treatment apparatus using the same according to an embodiment of the present invention, Figure 2 is a block diagram showing a particle separator of the water treatment apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the water treatment apparatus 300 according to the present embodiment includes a first line mixer 310, a neutralization reactor 320, a second line mixer 330, an agglomeration reactor 340 and 350, and a particle separator 360. ), And the batch and neutralization of the waste water from which the solids are removed.

The first line mixer 310 is a linear mixer in which the wastewater from which the solids have been removed, the neutralizing agent introduced from the neutralizing agent injector 311, and the coagulant introduced from the coagulant injecting big 312 are mixed.

In the case of acidic wastewater, it is preferable to use an alkaline solution such as caustic soda, hydrated lime, sodium bicarbonate, and in case of alkaline wastewater, use an acidic solution such as sulfuric acid and hydrochloric acid, and as a coagulant, iron sulfate, polyaluminum chloride, iron chloride, etc. It is preferable to use a coagulant generally used as such.

The neutralization reactor 320 is a hermetic reactor that neutralizes the wastewater mixed with the neutralizer in the first line mixer 310, and is installed downstream of the first line mixer 310 to neutralize the wastewater for a predetermined time, and neutralize the wastewater. Of course, it is also possible to install a pH detector for checking the condition.

The second line mixer 330 is a linear mixer in which the wastewater neutralized in the neutralization reactor 320 and the coagulant introduced from the coagulant injector 321 are mixed. As the coagulant, it is preferable to use an acidic and alkaline polymer coagulant.

The agglomeration reactors 340 and 350 are closed-type reactors in which the wastewater mixed with the auxiliary flocculant in the second line mixer 330 is agglomerated. Particles installed in the wastewater for a predetermined time are installed downstream of the second line mixer 330. Will be aggregated.

The agglomeration reactors 340 and 350 include a rapid reactor 340 for rapidly coagulating the wastewater mixed with the auxiliary coagulant and a slow reactor 350 for slowly coagulating the wastewater mixed with the auxiliary coagulant.

Since the rapid reactor 340 and the slow reactor 350 have a constant flow rate of wastewater therein, it is determined whether the reactor is rapid or slow according to the size of the reactor, so that the rapid reactor 340 has a smaller size than that of the slow reactor 350. It is preferable to use a reactor.

In addition, by installing a baffle in the neutralization reactor 320 and the flocculation reactor (340, 350) to form a turbulent flow, it is possible to induce a complete mixing reaction to be stirred with the power of the pump without a separate stirring device .

The particle separator 360 is a cyclone-type particle separator that separates unaggregated particles from the agglomerated wastewater. As shown in FIG. 2, the main body 361, the inlet 362, the solid outlet 363, and the treated water outlet 364 are shown. ), And the vortex blades 365.

The particle separator 360 may also be configured as a cyclone-type particle separator installed in plurality in order to sequentially remove the solids contained in the waste water.

The main body 361 is formed in a cylindrical shape so that the waste water is introduced and flows. The inlet 362 is formed in the tangential direction on the upper outer surface of the main body 361 so that the waste water is introduced into the upper portion of the main body 361 while forming a vortex.

The solid discharge port 363 is formed to narrow the passage in the lower portion of the main body 361 to discharge the discharge water containing the solid downward. The treated water outlet 364 discharges the treated water in which the solid matter is separated from the wastewater upward from the inner center of the main body and discharged to the outside.

The vortex blade 365 is a blade provided spirally on the inner wall surface of the main body 361, and forms a vortex in the wastewater introduced into the main body 361. Therefore, the solids contained in the waste water by the vortex blade 365 can be separated by centrifugal force to separate and discharge the solids and the treated water.

Part of the solids discharged water discharged downward through the solids discharge port 363 of the particle separator 360 is conveyed to the first line mixer 310. The sludge contained in the solids discharged water reduces the amount of neutralizer used and is used as a catalyst because the coagulation nucleus is activated during the aggregation of the particles.

Therefore, when the floc generated in the flocculation reactor flows into the vortex blades 365 of the particle separator 360 together with the waste water, the particle separator 360 has a flow rate of the waste water according to the rotation direction, and the cyclone. In the lower portion of the vortex blade 365 of the type particle separator 360, the cross-sectional area is relatively increased, and the flow rate of the wastewater is reduced.

At this time, the flow rate of the solid is reduced together with the inertia force, the solid precipitates downward along with the direction of gravity, and the treated water from which the solid is separated is discharged to the outside through the treated water outlet 364 inside.

In addition, the neutralization reactor 320, flocculation reactor (340, 350) and particle separator 360 is in a sealed state to the outside in order to prevent the discharge of odor to the outside and to save the installation space of the water treatment apparatus of this embodiment. It is desirable to remain.

In addition, the first line mixer 310, the neutralization reactor 320, the second line mixer 330, the flocculation reactors 340, 350 and the particle separator 360 prevent the discharge of odor to the outside and In order to save installation space of the water treatment apparatus, it is preferable that the casing 301 is integrally provided.

Hereinafter, with reference to the accompanying drawings will be described in more detail the wastewater treatment apparatus using a water treatment apparatus of a preferred embodiment of the present invention.

1 is a block diagram showing a water treatment apparatus and a wastewater treatment apparatus using the same according to an embodiment of the present invention, Figure 3 is a flow chart showing a wastewater treatment apparatus using a water treatment apparatus according to an embodiment of the present invention, Figure 4 Is a block diagram showing the sedimentation removal portion of the wastewater treatment apparatus using a water treatment apparatus according to an embodiment of the present invention.

1 and 3, the wastewater treatment apparatus using the water treatment apparatus of the present embodiment comprises a sediment removal unit 100, the flow rate adjusting unit 200, the water treatment apparatus 300 and the sludge treatment unit 400 The solids contained in the solids are removed and the neutralization of the waste water and the aggregation of particulates are processed in a batch.

Sediment removal unit 100 is a cyclone-type particle separator for removing the solids contained in the wastewater before the input to the water treatment apparatus, as shown in Figure 4, the main body 110, inlet 120, solids outlet 130, The treatment water outlet 140, the vortex blade 150 is composed of.

Of course, the immersion removal unit 100 may be formed of a plurality of cyclone-type particle separators sequentially installed to sequentially remove solids contained in the wastewater.

The main body 110 is formed in a cylindrical shape so that the waste water is introduced and flows by the pressure pump 101. Inlet 120 is formed in a tangential direction on the upper outer surface of the main body 110 so that the waste water is introduced into the upper portion of the main body 110 while forming the vortex.

The solid discharge port 130 is formed to narrow the passage in the lower portion of the main body 110 to discharge the discharge water containing the solid downward. The treated water outlet 140 discharges the treated water from which solids are separated from the wastewater upward from the inner center of the main body 110.

Vortex blade 150 is a blade provided in a spiral shape on the inner wall surface of the main body 110, and forms a vortex in the wastewater introduced into the main body (110). Therefore, the solids contained in the wastewater by the vortex blade 150 can be separated by centrifugal force to separate and discharge the solids and the treated water.

1 and 3, the flow rate adjusting unit 200 is a temporary storage tank for temporarily storing the wastewater from which the solids have been removed, and is adjusted to the inflow amount of the wastewater flowing into the water treatment apparatus 300. In particular, the flow rate adjusting unit 200 is provided with a flow rate control pump 201 for controlling the flow rate of the wastewater flowing into the water treatment apparatus 300.

The water treatment apparatus 300 is a sealed water treatment means for collectively processing the neutralization and fine particle aggregation of the wastewater from which the solids have been removed, and thus the description thereof will be omitted.

The sludge treatment unit 400 concentrates the sludge generated in the water treatment apparatus 300 and discharges the sludge to the outside. The sludge treatment unit 400 includes a sludge concentration tank 410 and a sludge dewatering tank 420.

The sludge thickening tank 410 is installed downstream of the water treatment device 300 to concentrate the discharged water containing the solid discharged downward from the particle separator 360 of the water treatment device 300 to form sludge.

In addition, since the supernatant generated in the sludge concentration tank 410 is conveyed to the flow rate adjusting unit 200 to be reprocessed and discharged, the wastewater treatment efficiency can be improved.

The sludge dewatering tank 420 is installed downstream of the sludge thickening tank 410 and the sludge concentrated in the sludge thickening tank 410 is introduced by pumping by the pump 421 to proceed with the dehydration process of removing water contained therein. Afterwards, the solid sludge is discharged to the outside.

In addition, in the waste water treatment apparatus of the present embodiment, in the sediment removal unit 100, the waste water is introduced through the inlet 120 installed in a tangential direction to the side of the main body 110, thereby forming the vortex in the main body 110. , Without a separate stirring device it is possible to stir with the power of the pump.

As described above, according to the present invention, the neutralization reactor, the flocculation reactor, and the particle separator are kept in a closed state in the water treatment device, and the outside of the odor or contaminants generated during the wastewater treatment can be prevented, and the pump lift As the flow rate is generated, mixing, flocculation, and condensation of the neutralizing agent and the flocculant are performed by the residence time and the baffle in the reaction tank, thereby providing the effect of integrating and simplifying the inflow and outflow of the wastewater.

In addition, the flocculation reaction of the wastewater can be treated with a rapid reactor and a slow reactor to improve the flocculation efficiency, and the separation of the sedimentation basin can be omitted by applying a cyclone-type particle separator when the solids are separated, thereby making the scale of the wastewater treatment compact. It can improve the wastewater treatment efficiency, return part of the solid wastewater, reduce the amount of neutralizing agent by the sludge contained therein, and use the catalyst as the heat of the coagulation nucleus during the flocculation reaction of the particles. The first line mixer, the neutralization reactor, the second line mixer, the coagulation reactor, and the particle separator are integrated into one casing to improve the holding force of the sealed state.

In addition, since most of the particles are removed from the wastewater through rapid vortex and cyclone type separators, the coagulant is added only to the fine particles, thereby dramatically reducing the amount of coagulant input and improving the wastewater treatment efficiency. The flow control pump performs the flow and treatment of the wastewater by the positive pressure of the pump from the inflow to the outflow of the wastewater by the flow control pump, thereby providing an effect of reducing the installation of power means for the flow of the wastewater.

The present invention described above can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the above embodiments are merely examples in all respects and should not be interpreted limitedly.

100: sediment removal unit 200: flow rate adjustment unit
300: water treatment apparatus 310: first line mixer
320: neutralization reactor 330: second line mixer
340: rapid reactor 350: slow reactor
360: particle separator 400: sludge treatment unit

Claims (8)

A water treatment device for collectively treating neutralization and particulate aggregation of wastewater from which solids have been removed,
A first line mixer in which the wastewater from which the solids are removed, and a neutralizer and a flocculant are mixed;
A neutralization reactor for neutralizing the wastewater mixed with the neutralizing agent;
A second line mixer in which the neutralized wastewater and the auxiliary coagulant are mixed;
An agglomeration reactor for agglomerating the wastewater mixed with the auxiliary coagulant; And
And a particle separator separating the particles from the aggregated wastewater.
The neutralization reactor, the flocculation reactor and the particle separator is characterized in that the water is maintained in a closed state blocked. The method of claim 1,
The flocculation reactor comprises a rapid reactor for rapidly coagulating the wastewater in which the auxiliary coagulant is mixed and a slow reactor for slow coagulation reaction of the wastewater in which the coagulant is mixed. The method of claim 1,
The particle separator,
A main body into which waste water is introduced and flows;
An inlet formed in the upper portion of the main body so that the waste water is introduced while forming a vortex;
A solid outlet configured to narrow a passage at a lower portion of the main body to discharge the discharged water including the solid downward;
A treated water outlet configured to discharge the treated water upward from the inner center of the main body; And
And a vortex blade installed on an inner wall surface of the main body to form a vortex in the wastewater introduced into the main body. The method of claim 1,
Part of the solid waste water discharged downward from the particle separator is conveyed to the first line mixer, characterized in that. The method of claim 1,
And said first line mixer, said neutralization reactor, said second line mixer, said coagulation reactor, and said particle separator are integrally provided in one casing. A wastewater treatment apparatus using the water treatment apparatus according to any one of claims 1 to 5,
A sedimentation removing unit for removing the solids contained in the wastewater before entering the water treatment apparatus;
A flow rate adjusting unit for storing the wastewater from which the solids have been removed and adjusting the flow rate of the wastewater flowing into the water treatment apparatus; And
And a sludge treatment unit for concentrating and discharging the sludge generated in the water treatment device to the outside. The method according to claim 6,
The sediment removal unit,
A main body into which waste water is introduced and flows;
An inlet formed in the upper portion of the main body so that the waste water is introduced while forming a vortex;
A solid outlet configured to narrow a passage at a lower portion of the main body to discharge the discharged water including the solid downward;
A treated water outlet configured to discharge the treated water upward from the inner center of the main body; And
And a vortex blade installed on the inner wall of the main body to form a vortex in the wastewater introduced into the main body. The method according to claim 6,
And a flow rate control pump for controlling the flow rate of the wastewater flowing into the water treatment device.

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