KR101632740B1 - Biological advanced treatment apparatus and method using an integrated aerobic nitrogen degassing - Google Patents

Abstract

The present invention relates to a biological and advanced method for sewage treatment using activated sludge. The present invention includes: a flow rate adjustment step of causing sewage to flow into a flow rate storage tank accommodating the activated sludge for the advanced sewage treatment; a solid-liquid separation step of causing the sewage to precipitate by using the activated sludge with the flow rate of the sewage adjusted through the flow rate adjustment step and separating the sewage into solid and liquid in a solid-liquid separation tank; a reaction step of causing the sewage to be exposed to the atmosphere after the solid-liquid separation step and biologically treating the sewage for anaerobic, degassing, and aerobic reactions; a precipitation step of accommodating the sewage denitrified and dephosphorized through the reaction step in a precipitation tank, re-separating the sewage into solid and liquid, and releasing the treated sewage to the outside; and a stirring step of denitrifying and dephosphorizing the sewage subject to the solid-liquid separation through the precipitation step with additional denitrification and dephosphorization tanks and by mixing return sludge precipitating in the precipitation step with the solid activated sludge and performing stirring.

Description

Technical Field [0001] The present invention relates to a biological altitude treatment apparatus using an integrated aerobic nitrogen degassing apparatus, and a biological altitude treatment apparatus using the same,

The present invention relates to a method for treating biological nutrients such as nitrogen or phosphorus in municipal wastewater or wastewater. More particularly, the present invention relates to a method for treating biological nutrients such as nitrogen and phosphorus in sewage or wastewater, And nutrients such as phosphorus can be treated. Therefore, the structure of the existing treatment facility can be fully utilized without the need to newly establish and renovate the new treatment process, so that the concentration of nitrogen and phosphorus contained in the wastewater can be reduced below the regulated concentration The present invention relates to an apparatus and a method for biological advanced treatment using a single-unit aerobic nitrogen degassing apparatus.

In general, biological processes for treating nitrogen in wastewater are nitrification processes in the aerobic condition that oxidize nitrogen compounds to nitrite ions (NO2-), nitrate ions (NO3-) And an anoxic denitrification process in which nitrogen gas is deaerated by utilizing it as a receptor.

In addition, the biological treatment process of phosphorus treats the phosphorus in the water by removing the phosphorus concentrated in the cells together with the microorganism in the system, so that the anaerobic process of releasing phosphorus in the microorganism to the outside of the body and the aerobic process The process is necessary.

The processes for biologically removing nitrogen are largely divided into pre-denitrification and post-denitrification.

In the latter post-denitrification process, since the nitrification reaction tank is located in front of the denitrification tank, organic substances introduced during the nitrification process are depleted, so that the following denitrification process is caused by endogenous respiration and thus the problem of low denitrification rate and anoxic ), There is a problem that the anaerobic tank is required to be large because the hydraulic retention time of the reactor becomes long.

Therefore, in order to increase the denitration rate, it is necessary to provide an external electron donor. However, in order to reduce the operating cost due to the external electron donor, the denitrification process (A / O and A2 / O process UCT and VIP process, Bardenpho process) have been developed.

However, in the case of pre-denitrification, internal circulation from the nitrification reactor to the anaerobic reactor is essential for denitrification. At this time, not only the nitrate but also the dissolved oxygen are transported together, so that the anoxic state can not be maintained in the anoxic tank, .

On the other hand, nutrient treatment processes such as A2 / O and A2 / O variants with existing in-circulation, Bardenpho system, UCT and VIP process are widely used for the conversion of existing sewage treatment plants However, UCT and VIP processes have two internal cycles, which complicates the process and increases operating costs.

In addition, in the A2 / O system and the Badenza system, since the dissolved oxygen contained in the internal return water during the internal transfer from the aeration tank to the anoxic tank can not be used only for denitrification, the domestic sewage whose inflow organic substances are insufficient compared to the nutrients, And the like.

On the other hand, for more accurate filtration, not only a physical method but also a chemical treatment or a biological method and devices can be used. Among them, a biological method using activated sludge can reduce the pollution caused by the chemical treatment, The demand for an apparatus and a method for filtering sewage using a biological method is steadily increasing, and studies on this are also under way.

Korean Unexamined Patent Publication No. 2003-0027608 (title of the invention: a method for treating wastewater)

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a solid-liquid separation tank capable of separately separating and removing the inflow sewage, The present invention also provides a biological advanced treatment apparatus using the integrated exhalation nitrogen digestion tank, which injects raw sludge (organic carbon source) generated in a tank into denitrification and deodorization, and mixes and agitates the sedimentation tank transport sludge to maximize denitrification and denitrification efficiency. The purpose.

In addition, the mixed sludge which has been subjected to the denitrification and dephosphorization processes is subjected to the mixed liquid spray treatment with the liquid-liquid separation treatment water and the aerobic sludge in the aerobic nitrogen degreasing tank having the two-stage structure, and the treated water is discharged through the rear aerobic tank and the final sedimentation tank Another object of the present invention is to provide a biological advanced treatment apparatus and method using an integrated aerobic nitrogen degassing apparatus capable of treating wastewater at a legal regulation concentration or less.

In order to accomplish the above object, the present invention provides a method for biological advanced treatment of sewage using activated sludge, comprising the steps of: discharging sewage to the activated sludge A flow rate regulating step of flowing into the flow rate storage tank accommodated in the flow rate regulating step; A solid-liquid separation step of precipitating sewage whose flow rate is adjusted through the flow rate adjusting step by using the activated sludge, and separating into solid and liquid in a solid-liquid separation tank; A reaction step of biologically treating the sewage for anaerobic digestion and exhalation reaction by exposing the sewage having undergone the solid-liquid separation step to the atmosphere; A sedimentation step of receiving the denitrified and dephosphorized sewage in the sedimentation tank through the reaction step, separating the solid and liquid into sewage and discharging the treated sewage to the outside; And an agitating step of removing and denitrifying the activated sludge precipitated in the sedimentation step by mixing and stirring the activated sludge in the solid phase by means of a separate denitrification and deodorization through the sedimentation step, .

In addition, the reaction step may include a denitrification and deodorization process in which an inlet port through which sewage flows is formed and the activated sludge is accommodated therein to precipitate contaminants of the sewage into the activated sludge, An air supply pipe provided in the form of a double pipe penetrating the inside of the inflow pipe and having a nozzle at its end to provide a passage through which air is supplied into the inflow pipe; And a circular spray plate installed at a part of the other end of the air supply pipe and arranged to block the activated sludge sprayed through the inlet pipe and disperse into an upper part of the denitrifying and desorbing furnace, And injecting the activated sludge into the upper part by using air pressure, And an air lifting unit disposed on the top of the denitrifying and degassing unit for delaying the air exposure time of the activated sludge discharged through the air lifting unit in a state where the air lifting unit passes through the air lifting unit, A plurality of medial filter media on the bottom surface of the denitrification tank and the deodorizing tank, and an acidifier unit for supplying oxygen into the inside of the denitrification tank and the deodorizing tank; An anaerobic stage in which phosphorus is discharged to the outside through a discharge port of denitrification and deodorization together with microorganisms by using microorganisms to remove phosphorus from the suspended solids of the sewage which have undergone the high-liquid preparation stage; A sewage floatation step of floating the waste water to an upper part of the denitrification tank and the deodorization tank using a pipe; A sewage blowing step of blowing the sewage floated to the upper part of the denitrifying and desorbing unit through the sewage flooding step to the upper part of the media filter using the air supply pipe; A sewage spraying step in which the sewage discharged through the sewage spraying step is sprayed onto the spraying plate to be sprayed to the upper portion of the media filter medium; Simultaneous treatment of the aerobic degassing process in which sewage water having been subjected to the sewage sprinkling step is passed through the mediare media and the exposure time is delayed in the atmosphere to simultaneously perform aerobic and degassing of sewage; And an aerobic step of supplying oxygen to the sewage contained in the denitrification and deodorization process through the aerobic deaeration simultaneous treatment step using the anaerobic unit.

An apparatus for biological treatment of wastewater under activated sludge in denitrification and deodorization is provided in a part of the denitrification and deodorization unit in a vertical direction and is pneumatically operated An air lifting unit for injecting the activated sludge into the upper part and de-nitrogening the activated sludge while exposing the activated sludge to oxygen in the atmosphere; A porous media media disposed on the top of the denitrification and deodorization unit to delay the air exposure time of the activated sludge ejected through the air lifting unit in a state where the air lifting unit passes through; Wherein a plurality of the denitration unit and the deodorization unit are installed on a bottom surface of the denitration unit and the deodorization unit, respectively, to supply oxygen into the denitration unit and the deodorization unit; And a controller connected to the denitration unit, the deodorization unit, the air lifting unit, and the diffuser unit to control operations of the denitrification unit, the deodorization unit, the air lifting unit, and the diffuser unit.

In addition, the air lifting unit may include an inflow pipe that is formed in an open top and bottom portions and through which the activated sludge flows, An air supply pipe provided in the shape of a double pipe penetrating the inside of the inflow pipe and having a nozzle formed at its end to provide a passage through which air is supplied into the inflow pipe; And a circular spray plate installed at a part of the other end of the air supply pipe and interrupting the activated sludge sprayed through the inflow pipe and dispersing the activated sludge to the upper portion of the media filter medium.

Also, the acid generator unit may include: an oxygen supply pipe disposed on the bottom surface of the denitration unit and the deodorization unit to provide a passage through which oxygen is supplied; An oxygen supplier connected to an inlet side of the oxygen supply pipe to supply oxygen to the oxygen supply pipe; And a disk-shaped spray nozzle provided at a plurality of spaced intervals on the outlet side of the oxygen supply pipe to provide a passage for discharging the oxygen supplied to the oxygen supply pipe through the denitrification and deodorization.

The biological advanced treatment apparatus and method using the integrated exhalation nitrogen degassing apparatus of the present invention is characterized by introducing a media filter medium in a sprinkling and filtration system on the top of denitrification and deodorization and purifying the nitrogen gas in the denitrification and dephosphorization treated sludge mixture liquid appropriately It is effective to control the nutrient salts such as nitrogen in the wastewater effectively within the legal standard value.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall flowchart of a biological advanced treatment method using an integrated exhalation nitrogen degassing apparatus according to an embodiment of the present invention; FIG.
FIG. 2 is a detailed flowchart of the above-described advanced processing method reaction step. FIG.
3 is a process diagram of a biological advanced treatment method using an integrated exhalation nitrogen degassing apparatus according to an embodiment of the present invention.
4 is a conceptual diagram of a biological advanced treatment apparatus using an integrated exhalation nitrogen degassing apparatus according to an embodiment of the present invention.
5 is a plan view of the advanced treatment apparatus.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

FIG. 1 is a flowchart showing an entire process of a biological advanced treatment method using an integrated exhalation nitrogen degassing apparatus according to an embodiment of the present invention, FIG. 2 is a detailed flowchart of the above-described advanced treatment method reaction step, FIG. FIG. 4 is a conceptual diagram of a biological advanced treatment apparatus using an integrated exhalation nitrogen digestion tank according to an embodiment of the present invention, and FIG. 5 is a plan view of the advanced treatment apparatus .

As shown in FIGS. 1 to 5, in a method for biological treatment of sewage using activated sludge, the present invention includes a flow rate adjustment step (S100), a solid-liquid separation step (S200), a reaction step (S300) A precipitation step (S400) and a stirring step (S500).

As for the activated sludge, when the aeration and the precipitation are repeated at the time of the wastewater treatment, the coagulation proceeds rapidly, and this precipitation is called the activated sludge.

In the activated sludge, a negative odor colloid is aggregated around oxidized positive hydroxides and oxidized fungi are attached. This fungus promotes coagulation, thereby partially purifying the activated sludge and effectively purifying the sludge.

The method of treating wastewater is referred to as activated sludge method. There are at least 50 kinds of bacteria in the activated sludge. Activated sludge is also referred to as activated sludge, but the latter is often used.

In the flow rate adjustment step (S100), the sewage is introduced into the flow rate storage tank containing the activated sludge for advanced treatment of the sewage.

In the solid-liquid separation step (S200), the wastewater whose flow rate is adjusted through the flow rate adjustment step (S100) is precipitated using activated sludge and separated into a solid and a liquid in a solid-liquid separation tank.

In the reaction step (S300), the sewage having been subjected to the solid-liquid separation step (S200) is exposed to the atmosphere to biologically treat it for anaerobic digestion and aerobic reaction.

The reaction step S300 includes a preparation step S310, an anaerobic step S320, a sewage floatation step S330, a sewage spraying step S340, a sewage sprinkling step S350, a concurrent processing step S360, ).

In the preparing step S310, an inlet for introducing sewage water is formed, an activated sludge is contained therein, and a denitrification / deodorization tank 100 for precipitating contaminants of the sewage water into the activated sludge is formed. And an inlet pipe 210 through which the activated sludge is introduced through a lower portion of the inlet pipe 210 and a nozzle pipe 210 through which the air is supplied into the inlet pipe 210, And a circular spraying unit 230 installed at a part of the other end of the air supply pipe 230 for distributing the activated sludge sprayed through the inlet pipe 210 to the upper part of the denitrifying and degassing vessel 100, And a plate 240 installed vertically in a part of the denitrifying and degassing vessel 100. The activated sludge is sprayed upward by using air pressure and the activated sludge is exposed to oxygen in the atmosphere, An air lifting unit 200 installed on the top of the denitrifying and degassing vessel 100 for removing air from the activated sludge through the air lifting unit 200 while passing through the air lifting unit 200, A plurality of porous media media 300 and a plurality of deodorizing and deodorizing vessels 100 are installed on the bottom of the denitrifying and degassing vessel 100 to provide oxygen to the inside of the denitrification and deodorization vessel 100, And preparing the processing apparatus.

The anaerobic stage (S320) is a step in which the sewage introduced into the denitrifying and degassing apparatus (100) through a solid-liquid separation step (S200) to remove phosphorus from the sewage is denitrified together with microorganisms using a microorganism, 100 to the outside through the outlet of the step.

In the sewage lifting step S330, the sewage having passed through the anaerobic stage S320 is floated up to the top of the denitrification tank 100 using the inflow pipe 210. [

In the sewage injecting step S340, the sewage floated up to the top of the denitrifying and degassing vessel 100 through the sewage flooding step S330 is sprayed to the upper portion of the media filter 300 using the air supply pipe 230 .

In the sewage sprinkling step S350, the sewage sprayed through the sewage spraying step S340 is sprayed onto the spraying plate 240 and sprinkled to the upper part of the media filter media 300. [

That is, the operator can expose the activated sludge to the atmosphere by allowing the operator to naturally degas the nitrogen by contacting with oxygen, and the above process can be repeatedly performed to perform fine filtration.

In the simultaneous treatment process (S360), the sewage water passing through the sewage spraying step (S350) passes through the media filter media (300) and the exposure time is delayed in the air, so that both the exhalation and the degassing of the sewage occur simultaneously, .

In the exhalation step S370, oxygen is supplied to the sewage contained in the denitrification / desorption unit 100 through the aerobic unit degassing process (S360).

Specifically, the operator uses oxygen supplied to the bottom surface of the denitrifying and degassing vessel 100 to supply oxygen to the activated sludge that has absorbed the suspended solids, and while removing nitrogen from the denitration vessel 100, The incoming sewage can be filtered.

In the precipitation step (S400), the denitrified and dephosphorized sewage is separated into a solid and a liquid by receiving the denitrified and dephosphorized sewage water through the reaction step (S300), and the treated sewage is discharged to the outside.

In the stirring step S500, a separate denitrification and deodorization treatment is performed by the solid-liquid separated sewage through the precipitation step S400, and the conveyed sludge precipitated in the precipitation step S400 is mixed with the activated sludge of the solid-liquid phase, Followed by stirring to denitrify and denitrify.

Here, stirring is an operation of making two or more kinds of materials having different physical or chemical properties into a uniform mixture state by using external mechanical energy, and when the chemical reaction is performed, the gas phase and the liquid phase, And a liquid phase, a solid phase and a liquid phase can be stirred to form a homogeneous phase and the reaction rate can be increased.

The entire process of the biological advanced treatment method using the integrated monoculture nitrogen denitration tank according to the present invention is characterized in that the sewage separated by the solid-liquid separation through the precipitation in the solid-liquid separation tank through the flow rate adjusting tank into which the sewage flows is subjected to the denitrification- The activated sludge that has undergone the aeration reaction in the nitrogen degassing tank causes the aeration reaction to occur once again in the aerobic tank and is transferred to the settling tank. And the treated wastewater can be biologically treated while repeating a series of processes in which the treated wastewater is discharged to the outside and the settled sludge is separated from the denitrification and deodorization and then transferred to the anaerobic tank.

The present invention relates to an apparatus for biological treatment of wastewater under activated sludge in denitrification and deodorization (100) of the present invention, which comprises an air lifting unit (200), a media media (300) ).

The air lifting unit 200 is vertically installed in a part of the denitrifying and degassing vessel 100, and the activated sludge is blown upward by using air pressure and the activated sludge is degassed while exposing the activated sludge to oxygen in the atmosphere .

Specifically, the air lifting unit 200 is vertically installed in a part of the denitrifying and degassing vessel 100, ejects the activated sludge upward by using air pressure, passes through the median filter media 300, The time is maximized to maximize the degassing of the nitrogen gas, and additionally, the removal efficiency of the organic substance (BOD) by the mediated microorganism can be increased.

The air lifting unit 200 may include an inlet pipe 210, an air supply pipe 230, and an injection plate 240.

The inlet pipe 210 is formed in a shape that the upper and lower portions are opened, and the activated sludge can be introduced through the lower portion.

The air supply pipe 230 is installed in the form of a double pipe passing through the inside of the inflow pipe 210 and a nozzle is formed at the end of the air supply pipe 230 to provide a passage through which the air is supplied into the inflow pipe 210.

The spray plate 240 may have a circular structure that is disposed at a portion of the other end of the air supply pipe 230 and disperses the activated sludge sprayed through the inlet pipe 210 to the upper portion of the media filter media 300.

The median filter media 300 is installed on the top of the denitrification and degassing vessel 100 and has a porous structure for delaying the air exposure time of the activated sludge sprayed through the air lifting unit 200 in a state in which the air lifting unit 200 is penetrated, . ≪ / RTI >

Specifically, the media media 300 are located on the top of the denitrification and deodorizing unit 100 and are spaced from the water by 0.5 to 1 M, and the height of the media media is 1 to 2 M. The plastic media 300 are spherical or cylindrical in diameter, And may be composed of a plurality of holes 20MM in size.

In addition, the media media 300 may be any one of cloth, metal mesh, sand, and charcoal in addition to plastic, which is a porous material used for separating solids.

In other words, the operator may delay the time during which the activated sludge is exposed to the atmosphere as the activated sludge ejected through the air lifting unit 200 passes through the median filter media 300 having air passages formed therein as if searching for a serpentine path And the contact time with oxygen can be increased to secure sufficient time for deaeration of nitrogen.

A plurality of the acid generator units 400 are installed on the bottom surfaces of the denitrifying and degassing vessel 100 to supply oxygen to the interior of the denitrifying and degassing vessel 100.

The oxidizer unit 400 may include an oxygen supply pipe 410, an oxygen supplier 420, and an injection nozzle 430.

The oxygen supply pipe 410 may be disposed on the bottom surface of the denitrifying and degassing vessel 100 to provide a passage through which oxygen is supplied.

The oxygen supplier 420 is connected to the inlet side of the oxygen supply pipe 410 to supply oxygen to the oxygen supply pipe 410.

A plurality of the injection nozzles 430 are provided at the predetermined intervals on the outlet side of the oxygen supply pipe 410 to provide a passage for discharging the oxygen supplied to the oxygen supply pipe 410 to the denitrification / Structure.

The anaerobic unit is used for denitrification and oxygen supply to the deodorization unit 100, and after supplying oxygen to the activated sludge in the denitrification unit 100, residual air is used for nitrogen depletion for the aeration of the upper median filter media 300 .

Here, an air diffuser is used for an activated sludge method or a floatation of an air diffuser, and refers to a device for converting air into a bubble state and dispersing it in a sludge so that aeration can be sufficiently performed.

A ceramic substrate made of porous ceramics (formed or sintered of quartz sand or silicon carbide particles), an acid furnace, or a furnace equipped with holes in the form of a nozzle are used.

The controller 500 is connected to the denitrification, deodorization unit 100, the air lifting unit 200 and the oxidizer unit 400 to perform the denitrification, deodorization, the air lifting unit 200, The operation can be controlled.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And such variations and modifications are intended to fall within the scope of the appended claims.

100: denitrification, deodorization
200: Air lifting unit
210: inlet pipe
230: air supply pipe
240: jet plate
300: Media media
400: diffuser unit
410: oxygen supply pipe
420: oxygen supplier
430: injection nozzle
500: controller

Claims (5)

A biological advanced treatment method using an integrated aerobic nitrogen digestion tank for biological treatment of sewage using activated sludge,
A flow rate adjusting step of flowing sewage into a flow rate storage tank containing the activated sludge for advanced treatment of sewage;
A solid-liquid separation step of precipitating sewage whose flow rate is adjusted through the flow rate adjusting step by using the activated sludge, and separating into solid and liquid in a solid-liquid separation tank;
A reaction step of biologically treating the sewage for anaerobic digestion and exhalation reaction by exposing the sewage having undergone the solid-liquid separation step to the atmosphere;
A sedimentation step of receiving the denitrified and dephosphorized sewage in the sedimentation tank through the reaction step, separating the solid and liquid into sewage and discharging the treated sewage to the outside; And
And an agitating step of removing and denitrifying the sludge precipitated in the sedimentation step by mixing and agitating the activated sludge with the solid phase by means of separate denitrification and deodorization through the sedimentation step,
The reaction step comprises:
A denitrification and deodorization system in which an inlet through which sewage flows is formed and the activated sludge is accommodated therein to precipitate pollutants of the sewage into the activated sludge; An air lifting unit installed vertically in a part of the denitrification and deodorization unit to eject the activated sludge upward by using air pressure and to degas the nitrogen while exposing the activated sludge to oxygen in the atmosphere; A porous media media disposed on the top of the denitrification and deodorization unit to delay the air exposure time of the activated sludge ejected through the air lifting unit in a state where the air lifting unit passes through; And preparing an advanced treatment apparatus including a plurality of oxidizing and deodorizing units provided on a bottom surface of the denitration unit and the deodorizing unit to supply oxygen into the denitration unit and the deodorization unit. And
And an anaerobic stage in which phosphorus is discharged to the outside through a discharge port of denitrification and deodorization together with microorganisms by using a microorganism to remove phosphorus from the suspended matter of the sewage which has undergone the preparation step,
The air lifting unit includes:
An inlet pipe through which the activated sludge is introduced through a lower part of the inlet pipe; An air supply pipe provided in the shape of a double pipe passing through the inside of the inflow pipe and having a nozzle formed at its end to provide a passage through which air is supplied into the inflow pipe; And a circular spray plate installed at a part of the other end of the air supply pipe and disposed to block the activated sludge sprayed through the inflow pipe and disperse to the upper portion of the media media,
The reaction step comprises:
A sewage floatation step of flooding the sewage having undergone the anaerobic step to the top of the denitrification tank and the deodorization tank using the inflow pipe;
A sewage blowing step of blowing the sewage floated to the upper part of the denitrifying and desorbing unit through the sewage flooding step to the upper part of the media filter using the air supply pipe;
A sewage spraying step in which the sewage discharged through the sewage spraying step is sprayed onto the spraying plate to be sprayed to the upper portion of the media filter medium;
Simultaneous treatment of the aerobic degassing process in which sewage water having been subjected to the sewage sprinkling step is passed through the mediare media and the exposure time is delayed in the atmosphere to simultaneously perform aerobic and degassing of sewage; And
Further comprising the step of supplying oxygen to the wastewater contained in the denitrification and deodorization unit through the aerobic deaeration simultaneous treatment step using the anaerobic unit, using the aerobic unit.
delete The method according to claim 1,
The advanced processing apparatus includes:
Further comprising a controller connected to the denitration unit, the deodorization unit, the air lifting unit, and the diffuser unit to control operations of the denitration unit, the deodorization unit, the air lifting unit, and the diffuser unit. Biological altitude treatment method using keystone.
delete The method according to claim 1,
The acid generator unit includes:
An oxygen supply pipe disposed on a bottom surface of the denitrifying and demineralizing furnace to provide a passage through which oxygen is supplied;
An oxygen supplier connected to an inlet side of the oxygen supply pipe to supply oxygen to the oxygen supply pipe; And
And a plurality of disk-shaped spray nozzles provided at an outlet side of the oxygen supply pipe to provide a passage through which the oxygen supplied to the oxygen supply pipe is discharged through the denitrification and deodorization. Biological elevation treatment method using dehairing tank.

Images