KR101893417B1 - Load-prevention continuous wastewater treatment system - Google Patents

Abstract

The present invention provides a continuous wastewater and sewage treatment system capable of improving economic feasibility and preventing a load of a whole facility by selectively preprocessing side stream water and inflow water by a sensor and improving treatment efficiency of preprocessing. According to the present invention, the continuous wastewater and sewage treatment system includes: a bioreactor having a raw water inflow line having a first sensor on one side and a treatment water discharge line having a second sensor on the other side, wherein the bioreactor also has a third sensor inside; a sludge treatment device having a side stream water discharge line discharging the side stream water and treating the sludge discharged from the bioreactor, wherein the side stream water discharge line has a fourth sensor and the sludge treatment device is connected to the raw water inflow line; an inflow water inflow line having a fifth sensor and connected to the raw water inflow line; a preprocessing tank; and a control device connected to the first to fifth sensor and determining the preprocessing by the preprocessing tank of the side stream water and the inflow water by operating a valve as a sensing material of each sensor is accumulated and analyzed. The preprocessing tank includes: a first preprocessing line connected to the side stream water discharge line by the valve; a second preprocessing line connected to the inflow water inflow line by the valve; a preprocessed water discharge line connected to the raw water inflow line; a reactor having a collection unit formed as a closed space at an upper end; a diffuser formed in a dual pipe structure and enabling air to flow into a lower end of the reactor; spray pipes protruding and connected to the diffuser, wherein an upper end of the spray pipe is connected to the collection unit and the spray pipe has multiple through holes; and dissolved carrier units installed in the spray pipe. The dissolved carrier unit comprises: a dissolving unit having a curved lower surface of a mountain shape; and a carrier unit having multiple air holes on the upper surface of the dissolving unit.

Description

[0001] Load-prevention continuous wastewater treatment system [

The present invention relates to a system capable of selectively performing a pre-treatment of a reflux water and a connection water in a continuous wastewater treatment process and improving the treatment efficiency by preventing the load and improving the treatment efficiency of the entire system.

In the continuous treatment of wastewater, in the case of the reflux water generated in the concentrator, the anaerobic digester, the dehydrator, etc., and the water connected to the raw water in the livestock housing, the contamination of high concentration is contained in the raw water, There is a problem that the treatment efficiency of the wastewater is lowered.

As an example of such a technique for efficiently processing the reflux water and the connection water, Korean Patent Registration No. 10-1462033 discloses a technology for removing sediment from inflow sewage or wastewater, a primary sedimentation tank for precipitating influent water flowing from the gypsum, 1. A wastewater treatment facility comprising a bioreactor for treating influent water flowing from the primary clarifier with microorganisms and a secondary clarifier for precipitating influent water flowing from the bioreactor, A sludge concentration tank for concentrating the first excess sludge; a phosphate discharge device for discharging phosphate from the second excess sludge generated in the sludge concentration tank; and a floating solid contained in the sludge obtained from the front stage, Liquid separation with the supernatant which minimizes the phosphate purity and the third surplus sludge A first solids filtration facility for receiving the supernatant liquid from the first solids filtration facility, and a pH control liquid supplied to the first solids filtration facility to adjust the pH of the supernatant liquid, And the phosphate release device is implemented using at least one method selected from a heat treatment method and a micro treatment method.

However, in the case of the above-mentioned technology, when the contamination concentration of the recirculating water is low, the pre-treatment facility is unevenly disposed and the cost of the process is problematic .

Korean Patent Registration No. 10-1462033

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for selectively pre-treating reflux water and connection water by a sensor base, A continuous processing system for a wastewater.

(Hereinafter referred to as "the system of the present invention") of the present invention includes a raw water inflow line in which a first sensor is configured and a second sensor And a third sensor is provided in the inside of the bioreactor; A sludge treatment unit connected to the raw water inflow line, wherein the sludge discharged from the bioreactor is treated and a counterflow water discharge line for discharging the counterflow water is formed; A connecting water inlet line connected to the raw water inlet line and configured by a fifth sensor; A first pretreatment line connected to the reflux water discharge line by a valve, a second pretreatment line connected to the connection water inflow line by a valve, a pretreatment water discharge line connected to the raw water inflow line, A plurality of through holes communicating with the upper end of the plurality of through holes and communicating with the air diffusing pipe and communicating with the air diffusing pipe, A pre-treatment vessel including a plurality of the plurality of pre-treatment vessels mounted on the injection tube, the pre-treatment vessels being composed of a dissolved portion having a lower surface forming a curved surface in a mountain shape and a carrier portion having a plurality of pores formed on the upper surface of the dissolved portion; And a control device connected to the first sensor to the fifth sensor to accumulate and analyze sensing data of each sensor to drive the valve to determine whether or not to pre-process the counterflow water and the connected water by a pretreatment tank .

For example, the air diffusing pipe may have a double pipe structure, in which air is supplied and an outlet pipe is formed in the lower portion along the longitudinal direction, and an outer periphery and a space of the inner pipe are formed to surround the inner pipe, And an outer appearance that communicates with each other.

As one example, the discharge holes are formed at a lower portion of the inner pipe, and the discharge spaces are reduced in a direction opposite to the direction in which air is injected from the inner pipe.

As one example, the through hole is located below the dissolved portion, and the carrier portion is communicated with the through hole.

In one example, the control device receives the incoming water quality value and the flow rate value from the first sensor, derives the influent load, receives the outflow water quality value from the second sensor, receives the temperature value from the third sensor, A data portion for data-wise the water quality by temperature; A driving unit for driving the valve to introduce the water into the pre-treatment tank and the bioreactor; The real-time influent load value is derived from the real-time influent water quality value and the real-time flow value from the first sensor, and the real-time runoff water quality value is derived from the derived real-time influent load and the real- The real-time recirculated water load value is obtained from the fourth sensor by receiving the real-time recirculated water quality value and the real-time flow rate value from the fourth sensor, and the real- Real time flow rate value is received and a real time connection load is derived, and when the real time reflux water load and real time connection water load exceeds the above-mentioned additional connection water load and additional reflux water load, the valve is driven to the pre- So that the real-time counter current load and the real-time connection water load are set to the above- Characterized in that it comprises a; load by driving the valve and can be linked or less wake analysis unit such that flowing into the bioreactor through the raw water inlet line.

As described above, according to the system of the present invention, in the continuous treatment of the wastewater, it is possible to automatically determine whether or not the pre-treatment of the reflux water and the connection water is performed by the sensing basis, thereby reducing the cost required for the pretreatment and improving the treatment efficiency of the pretreatment It is possible to improve the treatment efficiency of the whole system by preventing the load of the bioreactor.

1 is a block diagram illustrating a system of the present invention,
2 is a schematic view showing an example of a bioreactor, which is a constitution of the present invention,
3 is a block diagram showing a detailed configuration of a control apparatus which is a constitution of the present invention,
Figures 4A and 4B are operational state diagrams of the system of the present invention,
5 is a schematic view showing an example of a pretreatment tank which is a constituent of the present invention,
Fig. 6 is an operational state diagram showing an oxidant, which is a constitution of the pretreatment tank shown in Fig. 5,
Fig. 7 is an operational state diagram of the dissolved carrier in Fig. 5. Fig.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

1, the system 1 of the present invention includes a treated water discharge line 25 in which a raw water inflow line 24 having a first sensor 241 formed on one side thereof and a second sensor 251 formed on the other side thereof, And a third sensor (214) formed therein; A countercurrent water discharge line 31 for treating the sludge discharged from the bioreactor 2 and discharging countercurrent water is formed in the countercurrent water discharge line 31. A fourth sensor 311 is formed in the countercurrent water discharge line 31, A sludge treatment device 3 connected to the sludge treatment device 3; A connecting water inflow line (4) connected to the raw water inflow line (24) and comprising a fifth sensor (41); A first pretreatment line 51 connected by a valve 511 to the reflux water discharge line 31 and a second pretreatment line 52 connected to the connection water inflow line 4 by a valve 521 A pretreatment tank 5 having a pretreatment water discharge line 53 connected to the raw water inflow line 24; The sensed values of the respective sensors are accumulated and analyzed by the first to fifth sensors 241, 251, 214, 311 and 41 to drive the valves 511 and 521 so that the pre- And a control unit (6) for determining whether or not to perform the preprocessing by the control unit (5).

2, the bioreactor 2 includes a first settling tank 22, an anaerobic tank 211 as an anaerobic tank 21, an anoxic tank 212, A first reservoir tank 213, and a second sedimentation tank 23, and their functions are well known in the art and description thereof is omitted.

A raw water inflow line (24) having a first sensor (241) is formed on one side of the bioreactor (2). It is appropriate that the first sensor 241 includes a water quality sensor and a flow meter. That is, the first sensor 241 measures the inflow water quality and the inflow flow rate of the raw water introduced from the raw water inflow line 24 so that the measured value is transmitted to the control device 6.

A treatment water discharge line 25 in which the second sensor 251 is formed is formed on the other side of the bioreactor 2 so that the treated water treated in the bioreactor 2 is discharged to the treated water discharge line 25 The water quality of the treated water, that is, the quality of the effluent water, is measured through the second sensor 251, and the measured value is transmitted to the controller 6. It is appropriate that the second sensor 251 includes a water quality sensor.

In addition, a third sensor 214 is provided in the bioreactor 2 to measure water temperature and the like and transmit the measured temperature to the controller 6. It is appropriate that the third sensor 214 includes a temperature sensor.

The sludge treatment apparatus 3 includes a reaction water discharge line 31 for treating the sludge discharged from the bioreactor 2 and discharging the counter current water. A counter current water discharge line 31 is connected to the fourth sensor 311, Is connected to the raw water inflow line (24).

The sludge treatment device 3 is a device for treating sludge discharged from the bioreactor 2, and various known treatment devices exist, and a detailed description thereof will be omitted.

In the sludge disposal apparatus 3, the cake and the counter current water are discharged as a result of the sludge treatment, and the counter current flows through the counter current water discharge line 31 to the raw water inflow line 24 when there is no pre- So that the treatment through the bioreactor 2 is performed.

The water level and the flow rate of the reflux water are measured through the fourth sensor 311 and the measured water quality and the flow rate value are measured by the controller 6 ). It is appropriate that the fourth sensor 311 includes a water quality sensor and a flow meter.

The connection water inflow line 4 is connected to the raw water inflow line 24 so that the connection water can be processed through the bioreactor 2 when there is no preprocessing to be described below.

The fifth sensor 41 is connected to the connection water inflow line 4 so that the water quality and the flow rate of the connection water are measured and the measured water quality and the flow rate value are transmitted to the controller 6. It is appropriate that the fifth sensor 41 includes a water quality sensor and a flow meter.

The pretreatment tank 5 is basically configured to pretreat the reflux water and the connection water to transfer the pretreated water to the bioreactor 2 so as to prevent the load on the bioreactor 2 and to pre-treat all the reflux water and the connection water The load of the pretreatment tank 5 may also be caused, so that the pretreatment is selectively performed by the operation mechanism of the control device 6 to be described below.

To this end, the pretreatment tank 5 is provided with a first pretreatment line 51 connected to the reflux water discharge line 31 by a valve 511, so that the amount of reflux water flowing through the reflux water discharge line 31 To be introduced through the first pre-processing line (51).

In the pretreatment tank 5, a second pretreatment line 52 connected to the connection water inflow line 4 by a valve 521 is connected to the connection water inflow line 4, And selectively flows through the second pre-processing line 52.

The pretreated water that has passed through the pretreatment tank 5 flows to the bioreactor 2 through a pretreatment water discharge line 53 connected to the raw water inflow line 24.

The controller 6 is connected to the first to fifth sensors 241, 251, 214, 311 and 41 so that the sensed values of the respective sensors are digitized and analyzed to drive the valves 511 and 521, And whether or not the pre-treatment by the pre-treatment tank 5 of the connected water is determined.

3, the control unit 6 includes a data unit 61, a driving unit 62, and an analysis unit 63. In FIGS. 4A and 4B, Respectively.

First, the data unit 61 receives the influent water quality value and the flow rate value from the first sensor 241, derives the influent load, receives the outflow water quality value from the second sensor 251, And the inflow load and the outflow water quality are converted into data according to the temperature by receiving the temperature value.

In other words, the data unit 61 provides the comparison data to the analyzing unit 63, which will be described below, by converting each influent load and each outflow water quality into data by temperature.

The analyzer 63 receives the real-time influent water quality value and the real-time flow rate value from the first sensor 241 and derives the real-time influent load, and calculates the real-time influent load derived from the real- To obtain a real-time runoff water quality value. The real-time effluent quality value is derived from the data obtained by comparing the influent load and the effluent quality of each effluent quality in the data part 61 by temperature.

Further, the analyzer 63 derives an additional linkage load and an additional counterflow load that can be received from the raw water inflow line 24 according to the real-time effluent quality value derived as described above. That is, an additional connected water load and an additional reactive water load that can be additionally received through the raw water inflow line 24 without the load of the biological reactor 2. This will be a real-time threshold for adding additional link loads and adding additional rebounds.

The analysis unit 63 receives the real-time untreated water quality value and the real-time flow rate value from the fourth sensor 311 and derives the real-time untreated water load from the fourth sensor 311. The real sensor water quality value and the real- And receives a real-time linkage load.

Then, the analysis unit 63 drives the valve when the real-time rebound water load and real-time water load load derived as described above exceeds the additional water load and the additional water load, 5) is performed.

That is, a real-time rebound number load and a real-time linkage load with respect to the reflux number and the connection number that are discharged in real time are derived, and when the value exceeds the threshold value of the additional connection number load and the additional reflux number load, The valves 511 and 521 are operated to cause the connection water to flow into the pretreatment tank 5 through the second pretreatment line 52 through the first pretreatment line 51, .

Further, the analysis unit 63 drives the valve when the real-time recirculating water load and the real-time water-related load are equal to or less than the additional water-related water load and the additional water-in-oil water load, 2).

That is, the real-time rebound number load and the real-time linked number load for the rebound number and the connected number that are discharged in real time are derived, and when the value is equal to or smaller than the threshold value of the additional number- The valve 511 and 521 are operated to cause the counterflow water to flow through the counterflow water discharge line 31 and the raw water inflow line 24 via the connection water inflow line 4 and the raw water inflow line 24, To the bioreactor (2). The counterflow water and the connection water are directly introduced into the bioreactor 2 by bypassing the pretreatment tank 5.

In the case where it is possible to process the real-time untreated water and the connected water without the load in the biological reaction tank 2 by the above-mentioned action mechanism, by bypassing the pretreatment tank 5 and stopping the operation of the pretreatment tank 5, So that a load of the bioreactor 2 may be generated when the real-time recirculated water and the connected water are directly introduced. Therefore, the treatment efficiency is improved by passing through the pretreatment tank 5 only in this case.

In the present invention, the pretreatment tank 5 of the present embodiment is provided with a pretreatment tank 5 for enhancing the pretreatment efficiency of the reflux water and the connection water, Suggesting an example in which the reaction efficiency is enhanced and the untreated air can be recycled.

5 to 7, the pretreatment tank 5 of this embodiment includes a reaction tank 54 having a collecting portion 541 formed at the upper end thereof as a closed space, and a double pipe 54 for introducing air into the lower end of the reaction tank 54. [ (56) having a plurality of through holes (561) communicating with the collecting part (541) and having an upper end communicating with the air diffusing pipe (55) A plurality of pores 572 mounted on the spraying tube 56 and having a bottom surface 571 forming a curved surface in a mountain shape and a plurality of pores 572-1 formed on the top surface of the dissolved portion 571 And a dissolved carrier (57).

The reaction tank 54 is configured to introduce the reflux water and the connection water to decompose the organic matter and the like under an exhalation condition in the inside thereof. A collecting part 541 composed of a closed space is formed at the upper end of the reaction tank 54, So that air is introduced into the reaction tank (2) at the downstream end or circulated and then introduced into the reaction tank (54).

The air diffuser 55 is configured to allow air to flow into the lower end of the reaction vessel 54, and the air diffuses from the outside by various known techniques.

In particular, as shown in FIG. 6, the air diffuser 55 includes an inner pipe 551 having a double pipe structure, air is supplied and a discharge hole 551 is formed along the longitudinal direction at the bottom, and the inner pipe 551 And an outer pipe 552 having an outer circumference and a space 553 of the inner pipe 551 and communicating with the injection pipe 56 at an upper portion thereof.

As shown in FIG. 6, the inner pipe 551 is provided with a discharge hole 551-1 along the longitudinal direction at its lower portion as shown in FIG. 6, so that air supplied through the inner pipe 551 flows in the space 553 And the discharged air is diffused in the space 553 and flows to the injection pipe 56. [

The reason why the air is allowed to flow downward through the injection pipe 56 after the air is discharged in the downward direction from the inner pipe 551 and the air is diffused through the space 553, So that a uniform exhalation action can be achieved throughout the reaction tank 54. [0053] FIG.

More preferably, the discharge holes 551-1 are formed at a lower portion of the inner pipe 551, and the spacing between the discharge holes 551-1 is small in the opposite direction to the air in the inner pipe 551 . As shown in the drawing, the distance d1 between the discharge holes 551-1 in the direction in which the air is injected from the inner pipe 551 is smaller than the distance d2 between the discharge holes 551-1 located in the opposite direction in which the air is injected .

This is because the injection pressure of the air through the inner pipe 551 becomes smaller toward the end of the inner pipe 551, so that when the intervals of the discharge holes 551-1 are made the same, The amount of the air discharged through each of the spray tubes 56 can be changed even if the amount of the air discharged from the inner tube 551 is reduced and the air is diffused through the space 553. In this case, 551-1 so that the number of the discharge holes 551-1 increases toward the end of the inner pipe 551 so that the amount of air discharged from the entire inner pipe 551 is uniform.

The injection pipe 56 communicates with the air diffusing pipe 55 so as to protrude in a plurality of directions so that the upper end communicates with the collecting part 541 and a plurality of through holes 561 are formed. The air flowing through the air diffusing pipe 55 flows upward through the respective injection pipes 56 and flows out through the plurality of through holes 561. Unreacted air is collected in the collecting part 541, .

The dissolved carrier (57) has a dissolved portion (571) mounted on the spray tube (56) with a clearance in the height direction and forming a curved surface in a mountain shape, and a plurality And a carrier portion 572 having pores 572-1 formed therein.

As shown in FIG. 5, the through hole 561 of the spray tube 56 is connected to the bottom of the dissolved portion 571, The through hole 561-1 and the through hole 561-2 communicating with the carrier portion 572 are formed.

The air a2 upwardly flowing through the spray tube 56 is sprayed through the through hole 561-1 from the lower portion of the dissolved portion 571 and the curved surface of the dissolved portion 571 The longer the contact time with the fluid, the higher the dissolution rate of the air.

The upward air is injected into the carrier part 572 through the through hole 561-2 in the carrier part 572. The carrier part 572 has pores formed therein, It spreads out. This air is converted into a microcapsule while passing through the carrier unit 572 to improve the dissolution rate in the fluid, and furthermore, the aerobic action by microorganisms in the pores of the carrier unit 572 is activated.

The unreacted air a1 is returned to the trapping section 541 while the remaining unreacted air is returned to the trapping section 541 while repeating the above- To be captured.

As described above, by the action of the plurality of dissolved carrier means 57, the dissolution rate of the air is improved and the aerobic action of the microorganisms is activated to lower the organic matter content in the reflux water and the connected water, thereby preventing the load on the bioreactor 2 .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: System 2 of the present invention: bioreactor
3: sludge treatment device 4: connection water inflow line
5: Pretreatment tank 6: Control device

Claims (5)

A process water discharge line is formed in which a raw water inflow line configured with a first sensor including a water quality sensor and a flow meter is formed on one side and a second sensor including a water quality sensor is provided on the other side, A bioreactor configured with a third sensor;
A countercurrent water discharging line for discharging the countercurrent water is formed in the countercurrent water discharging line, a fourth sensor including a water quality measuring sensor and a flow meter is provided, and a sludge disposing device connected to the raw water inflow line, ;
A connecting water inlet line connected to the raw water inlet line and configured by a fifth sensor including a water quality measuring sensor and a flow meter;
A first pretreatment line connected to the reflux water discharge line by a valve, a second pretreatment line connected to the connection water inflow line by a valve, a pretreatment water discharge line connected to the raw water inflow line, A plurality of through holes communicating with the upper end of the plurality of through holes and communicating with the air diffusing pipe and communicating with the air diffusing pipe, A pre-treatment vessel including a plurality of the plurality of pre-treatment vessels mounted on the injection tube, the pre-treatment vessels being composed of a dissolved portion having a lower surface forming a curved surface in a mountain shape and a carrier portion having a plurality of pores formed on the upper surface of the dissolved portion; And
And a control unit connected to the first sensor to the fifth sensor to accumulate and analyze sensing data of each sensor to drive the valve to determine whether to pre-process the pre-
The air diffusing pipe
And an outer tube having an inner tube through which air is supplied and a discharge hole formed along the longitudinal direction at a lower portion and an outer tube which surrounds the inner tube and has an outer circumference and a space formed therein and communicates with the spray tube at an upper portion,
The control device includes:
And a controller for receiving the influent water quality value and the flow rate value from the first sensor to derive an influent load and receiving the outflow water quality value from the second sensor and receiving the temperature value from the third sensor, A drive unit for driving the valve and introducing the water into the pretreatment tank and the bioreactor; And real-time influent load value from the first sensor and a real-time flow rate value to derive a real-time influent load, derive a real-time runoff water quality value from the derived real-time influent load and the real-time temperature value delivered from the third sensor, Wherein the controller is further configured to analyze the additional connection load and the additional counter current load that can be received in the inflow line, receive the real-time recirculated water quality value and the real-time flow rate value from the fourth sensor, The real water flow quantity value and the real time flow quantity value are received to derive a real time connection water load, and when the real time reflux water load and real time connection water load exceeds the additional connection water load and the additional reflux water load, The pretreatment by the pre-treatment tank of the connected water is performed, and the real-time rebound water load and the real- And an analyzer for driving the valve to cause the counterflow water and the connection water to flow into the bioreactor through the raw water inflow line when the counted load is less than or equal to the counted load and the additional counterflow water load.
delete The method according to claim 1,
Wherein the discharge holes are formed at a lower portion of the inner pipe so that a gap between discharge spaces is reduced in a direction opposite to a direction in which air is injected from the inner pipe.
The method according to claim 1,
Wherein the through hole is located below the dissolved portion, and the carrier portion communicates with the through hole. delete

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