KR20160114932A - Apparatus for Controlling Load using the Bio-Sensor - Google Patents

Apparatus for Controlling Load using the Bio-Sensor Download PDF

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Publication number
KR20160114932A
KR20160114932A KR1020150041434A KR20150041434A KR20160114932A KR 20160114932 A KR20160114932 A KR 20160114932A KR 1020150041434 A KR1020150041434 A KR 1020150041434A KR 20150041434 A KR20150041434 A KR 20150041434A KR 20160114932 A KR20160114932 A KR 20160114932A
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KR
South Korea
Prior art keywords
load
bioreactor
inflow
sludge
measuring
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Application number
KR1020150041434A
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Korean (ko)
Inventor
조종복
김한래
Original Assignee
주식회사 아쿠아테크
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Priority to KR1020150041434A priority Critical patent/KR20160114932A/en
Publication of KR20160114932A publication Critical patent/KR20160114932A/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2

Abstract

The present invention relates to a load controlling device using a biosensor. The load controlling device comprises: a bioreactor for measuring a microbial metabolism, a dissolved oxygen concentration, a hydrogen ion concentration, and a water temperature in sewage and wastewater solid-liquid separated to be transferred, and for adjusting a supply amount of oxygen according to the microbial metabolism, the dissolved oxygen concentration, the hydrogen ion concentration, and the water temperature to perform removal of an organic matter, continuous denitrification, nitrification, and phosphorus intake reaction to be changed into sludge; an inflow load pre-detection unit for receiving inflow pollution load from an outside, receiving the sludge from the bioreactor, and measuring a change in a microbial metabolism state according to the inflow pollution load; a load controlling unit for controlling the inflow pollution load transferred to the bioreactor according to a load state inside the bioreactor and a load state measured in the inflow load pre-detection unit; and a control unit for controlling the load controlling unit according to a type of determined load after determining the type of a current load according to the load state measured in the inflow load pre-detection unit and the microbial metabolism, the dissolved oxygen concentration, the hydrogen ion concentration, and the water temperature measured in the bioreactor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bio-

The present invention relates to a load control apparatus using a biosensor, and more particularly, to an apparatus and a method for controlling a load of a bioreactor by driving a load control unit installed in a pre- And a load control device using a biosensor capable of reducing drug costs.

In order to minimize the adverse effects of microorganisms in the bioreactor due to fluctuation of influent pollutant load, the first solid-liquid separation method, which is generally applied to the water treatment system, includes filtration, pressurization levitation and gravity precipitation. Recently, a pressurized floatation technique has been gradually applied to remove water by filtration with filtration media or filter media having fine pores, or by generating fine air or floating with contaminants.

In addition, efforts have been made to improve the solid-liquid separation efficiency by additionally adding chemicals in the above-described manner. In order to homogenize the changes in flow rate and concentration, a flow rate adjusting tank having a large storage capacity is installed, A method of processing the data is also commonly used.

On the other hand, in most biological water treatment systems, the microorganisms in the bioreactor are sensitive to the load variation of the influent, but even if there is no device to monitor the incoming pollutant load or monitoring devices are installed, Therefore, it is impossible to control the load fluctuation, and the process operation is very difficult.

In addition, in the case of the first solid-liquid separation facility installed at the upstream of the conventional biological treatment process, since most of the first solid-liquid separation facilities are installed to reduce the inflow pollution load considering only the high load, the capacity of the treatment facility is unnecessarily increased There is a problem that a waste is incurred and an organic matter to be supplied to a subsequent process is insufficient due to excessive treatment efficiency at a low cost, and chemicals are charged at an extra cost.

Since the conventional first solid-liquid separation facility is installed as one system rather than various systems, there is a problem that the load of the subsequent process can not be controlled due to the fluctuation of the inflow pollution load, the load of the load into the bioreactor significantly increases, This phenomenon occurs when the treated water quality deteriorates due to the sedimentation of microorganisms and the deactivation of microorganisms, or when a large amount of inflow and low load are continuously generated during rainfall.

Therefore, it is an object of the present invention to provide a bioreactor which can detect influent pollution load at the front end of a biological reactor and control the load and inflow amount of the inflow pollutant load supplied to the biological reactor, thereby minimizing the influence of the load change in the bioreactor, The present invention provides a load control apparatus using a biosensor.

In order to achieve the above object, the load control apparatus using the biosensor according to the present invention measures the microbial metabolism state, dissolved oxygen concentration, hydrogen ion concentration, and water temperature in the wastewater discharged from solid- A bioreactor for removing organic matter by controlling the oxygen supply amount according to the concentration, the hydrogen ion concentration, and the water temperature, and continuously converting the organic matter into sludge by performing denitrification and nitrification and phosphorus uptake reaction; An influent load pre-sensing unit for receiving influent pollution load from the outside, receiving sludge from the bioreactor, and measuring a change in microbial metabolism state according to the influent pollution load; A load regulator for regulating an inflow pollution load transmitted to the bioreactor according to a load condition measured in the bioreactor and a load condition measured by the inflow-load pre-detection unit; And determining the type of the current load according to the load state measured by the influent load pre-sensing unit and the microbial metabolism, dissolved oxygen concentration, hydrogen ion concentration, and water temperature measured in the bioreactor, And a control unit for controlling the unit.

In the present invention, the bioreactor includes a downstream biosensor for measuring the microbial metabolism for continuous denitrification and nitrification of inflow pollution load, a DO sensor for measuring dissolved oxygen concentration, a pH sensor for measuring hydrogen ion concentration, A sensor unit configured by a water temperature sensor; An oxygen supply unit for adjusting an oxygen supply amount in the bioreactor; An internal homogenization pump circulating sludge in the bioreactor to homogenize sludge inside the bioreactor; And a sludge transfer pump installed at a lower portion of the bioreactor for transferring the sludge stored in the bioreactor to the inflowing load pre-sensing unit.

In the present invention, the influent load pre-detection unit may include: a front end biosensor for measuring a change in microbial metabolism state according to the inflow pollution load; And an air supply unit for supplying air into the inflow-load pre-sensing unit to control the microbial metabolic state change according to the inflow pollution load.

The present invention is further characterized by monitoring means for indicating a type and a load state of a current load transferred from the control unit.

According to the present invention, since the inflow pollution load is detected before the inflow pollution load is transmitted to the bioreactor, the loading amount and the inflow amount of the inflow pollution load flowing into the bioreactor are controlled according to the load condition of the bioreactor, Since the load is stably supplied to the bioreactor, the treatment efficiency can be increased, the sedimentation efficiency of the sludge can be increased, the treatment efficiency can be increased, and the sludge sedimentation efficiency can be increased, thereby ensuring stable treatment water quality .

1 is a view showing a load control apparatus using a biosensor according to a preferred embodiment of the present invention.
FIG. 2 is a view showing a method of controlling an inflow pollution load in a load control apparatus using the biosensor shown in FIG. 1. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, when a part is referred to as being "connected" with another part throughout the specification, it includes not only a direct connection but also indirectly connecting the other parts with each other in between. Also, to "include" an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

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

1 is a view showing a load control apparatus using a biosensor according to a preferred embodiment of the present invention.

1, a load control apparatus using a biosensor according to a preferred embodiment of the present invention includes a biological reaction tank 3, an influent load pre-detection unit 1, a load control unit 2, and a control unit 301 .

The bioreactor 3 measures the microbial metabolism state, dissolved oxygen concentration (DO), hydrogen ion concentration (pH) and water temperature in the wastewater discharged from the solid-liquid separation, and measures the microbial metabolism state, dissolved oxygen concentration (DO) The oxygen supply amount is adjusted according to the ion concentration (pH) and the water temperature to remove organic matter, continuously denitrification, nitrification, and phosphorus conversion to convert it into sludge and discharge it to the second solid-liquid separation tank (4).

The bioreactor 3 is provided with a rear end biosensor 102 for measuring the microbial metabolism state for continuous denitrification and nitrification of the inflow pollutant load, a DO sensor 101 for measuring the dissolved oxygen concentration (DO), a hydrogen ion concentration a sensor unit constituted by a pH sensor 103 for measuring pH and a water temperature sensor for measuring the temperature of water; a blower 204 and an oxygen control valve 203 for adjusting the oxygen supply amount in the biological reaction tank 3; An oxygen supply unit, an internal homogenization pump 205 for homogenizing the sludge state in the bioreactor 3 by circulating sludge in the bioreactor 3, and an internal homogenization pump 205 for circulating the sludge inside the bioreactor 3, A sludge transfer pump 206 for transferring the sludge stored in the sludge storage tank 3 to the outside is installed.

The influent load pre-sensing unit 1 receives an inflow pollution load from the outside, receives sludge from the bioreactor 3, and measures a change in microbial metabolism state due to inflow of the inflow pollution load.

The influent load pre-sensing unit (1) is provided with a front end biosensor (104) for measuring a state change of microorganisms due to the inflow of the inflow pollutant load, and a microcomputer An air supply unit 207 for continuously supplying (or injecting) a predetermined amount of air into the load advance sensing unit 1 is provided.

At this time, the measured value of the load state measured by the front-end biosensor 104 increases when the load of the organic material increases and decreases when the load of the organic material decreases.

The load regulating unit 2 regulates an inflow pollution load transmitted to the bioreactor 3 according to the load condition measured in the bioreactor 3 and the load condition measured by the inflow-load proactive sensor 1 .

The load regulating unit 2 regulates the flow of the high load production control valve 201 and the low load production regulator 3 in order to deliver the inflow pollution load in the high load state and the inflow pollution load in the low load state to the bioreactor 3, A load regulating unit (i.e., a first solid-liquid separating tank) is installed in a line where the valve 202 is installed. The load regulating unit is composed of a centrifugal separator, an air floating device The amount of the pollutant load transferred to the biological reaction tank 3 can be adjusted by controlling the number of operations and the operation speed in accordance with the control signal supplied from the control unit 301. [

The control unit 301 determines the current load type according to the load state measured by the influent load pre-sensing unit 1 and the microbial metabolism state, dissolved oxygen concentration, hydrogen ion concentration, and water temperature measured in the bioreactor 3 And controls the load controller 2 according to the determined load type.

2, the control unit 301 compares the measured load value transmitted from the front-end biosensor 104 with the set load value, and calculates an inflow flow rate value flowing into the bioreactor 3 (That is, the amount of influent pollution load controlled by the load regulator 2 and transferred to the bioreactor 3) with the set flow rate value, and the hydrogen ion concentration value measured by the pH sensor 103 is set to Load production control valve 202 and the high-load production control valve 201 according to the respective comparison values.

That is, when the measured value of the front-end biosensor 104 is larger than the set load value and the inflow flow rate is smaller than the set flow rate value, the controller 301 controls the low- If the measurement value of the front end biosensor 104 is larger than the set load value and the inflow flow rate is larger than the set flow rate value and the hydrogen ion concentration value measured by the pH sensor 103 is larger than the set concentration value Load production control valve 202 is opened so that the load in the bioreactor 3 is not increased due to excessive inflow, and when the measured value of the front-end biosensor 104 is larger than the set load value and the influent flow rate is less than the set flow rate value When the hydrogen ion concentration value measured by the pH sensor 103 is smaller than the set concentration value, it is determined that the organic matter load is not eliminated and the low load production control valve 202 is opened.

The controller 301 determines whether the measured value of the front end biosensor 104 is smaller than the set load value, the inflow flow rate is larger than the set flow rate value, and the hydrogen ion concentration value measured by the pH sensor 103 is larger than the set concentration value Load production control valve 202 is opened, the measured value of the front-end biosensor 104 is smaller than the set load value, and the inflow flow rate is set to be larger than the set load value, It is determined that the empty load is introduced into the bioreactor 3 due to the rainfall when the hydrogen ion concentration value measured by the pH sensor 103 is smaller than the set concentration value and the high load production control valve 201 Open.

If the measured value of the front end biosensor 104 is smaller than the set load value, the inflow flow rate is smaller than the set flow rate value, and the hydrogen ion concentration value measured by the pH sensor 103 is less than the set concentration value Load production control valve 202 is opened and the measured value of the front end biosensor 104 is smaller than the set load value and the inflow flow rate is less than the set flow rate If the hydrogen ion concentration value measured by the pH sensor 103 is smaller than the preset concentration value, it is determined that the load in the bioreactor 3 has decreased due to the decrease in the amount of water, and the low load production control valve 202 ).

When the low load production control valve 202 is opened by the above method, the high load production control valve 201 is kept in a locked state. When the high load production control valve 201 is opened, The production control valve 201 is kept in the locked state.

The apparatus for controlling a load using the biosensor according to an embodiment of the present invention configured as described above further includes monitoring means 302 for indicating a type and a load state of a current load transmitted from the controller 301 . Thus, the operator can observe the change in the load state in the bioreactor 3 through the load type and the load state displayed on the monitoring means 302.

As described above, the load control apparatus using the biosensor according to the embodiment of the present invention detects the inflow pollution load in advance before the inflow pollution load is transmitted to the bioreactor 3, Since the load and the inflow amount of the inflow pollution load flowing into the bioreactor 3 are controlled, the load is stably supplied to the bioreactor 3, so that the treatment efficiency can be increased and the sludge settling efficiency can be increased , It is possible to secure a stable treated water quality by increasing treatment efficiency and increasing sludge sedimentation efficiency.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. 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 of the invention.

Accordingly, the scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: Inflow load pre-detection part 2: Load control part
3: Bioreactor 4: Secondary solid-liquid separation tank
101: DO sensor 102: rear end biosensor
103: pH sensor 104: shear biosensor
201: High-load production control valve 202: Low-load production control valve
203: oxygen control valve 204: blower
205: Internal homogenization pump 206: Sludge transfer pump
207 air supply unit 301 control unit
302: Monitoring means

Claims (4)

The microbial metabolic status, dissolved oxygen concentration, hydrogen ion concentration, and water temperature are measured in the wastewater transferred from the solid-liquid separation, and the oxygen supply amount is adjusted according to the microbial metabolism, dissolved oxygen concentration, hydrogen ion concentration, A bioreactor for performing denitrification, nitrification, and phosphorus uptake to convert into sludge;
An influent load pre-sensing unit for receiving influent pollution load from the outside, receiving sludge from the bioreactor, and measuring a change in microbial metabolism state according to the influent pollution load;
A load regulator for regulating an inflow pollution load transmitted to the bioreactor according to a load condition measured in the bioreactor and a load condition measured by the inflow-load pre-detection unit; And
The control unit determines the type of the current load according to the load state measured by the influent load pre-sensing unit, the microbial metabolic state, the dissolved oxygen concentration, the hydrogen ion concentration, and the water temperature measured in the bioreactor, And a controller for controlling the biosensor. The method according to claim 1,
The bioreactor includes:
A sensor unit comprising a posterior biosensor for measuring a microbial metabolism state for continuous denitrification and nitrification of inflow pollution load, a DO sensor for measuring dissolved oxygen concentration, a pH sensor for measuring hydrogen ion concentration, and a water temperature sensor for measuring water temperature;
An oxygen supply unit for adjusting an oxygen supply amount in the bioreactor;
An internal homogenization pump circulating sludge in the bioreactor to homogenize sludge inside the bioreactor; And
And a sludge transfer pump installed at a lower portion of the bioreactor for transferring the sludge stored in the bioreactor to the inflowing load pre-sensing unit. The method according to claim 1,
The influent load pre-
A shear biosensor measuring a change in microbial metabolism state according to the influent pollution load; And
And an air supply unit for supplying air into the inflow-load pre-sensing unit to control a change in microbial metabolism state according to the inflow pollution load. The method according to claim 1,
Further comprising monitoring means for displaying a type and a load state of the current load transmitted from the control unit.
KR1020150041434A 2015-03-25 2015-03-25 Apparatus for Controlling Load using the Bio-Sensor KR20160114932A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210067024A (en) * 2019-11-29 2021-06-08 (주)태림이엔티 Inflow load control device using IOT system and the method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210067024A (en) * 2019-11-29 2021-06-08 (주)태림이엔티 Inflow load control device using IOT system and the method thereof

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