KR101741655B1 - Sewage treatment methods using sequencing batch reactor and apparatus used therein - Google Patents

Abstract

Disclosed is a water treatment method and an apparatus used therefor. According to one aspect of the present invention, there is provided a continuous batch bioreactor in which sewage is continuously introduced; A stirring device for generating a horizontal flow of sewage in a longitudinal direction of the continuous batch bioreactor; Aeration device for supplying air to the continuous batch type bioreactor; A treated water discharging device for discharging the treated water separated from the sewage contained in the continuous batch type bioreactor to the outside; And a sludge discharge device for discharging the sludge separated from the sewage contained in the continuous batch type bioreactor to the outside, wherein the continuous batch type bioreactor is formed at the front end of the continuous batch type bioreactor, An inflow inlet; A biological mixing portion which is separated from the inflow portion by a booster and into which the sewage of the inflow portion is introduced through a booster hole formed at a lower end of the booster; A biological reaction part which is separated from the biological mixing part and in which the agitation device and the sludge discharge device are disposed; And a discharge part formed at a rear end of the continuous batch type bioreactor and separated from the biological reaction part and in which the treated water discharging device is disposed, the sewage treatment method using the sewage treatment device, To perform an aerobic process by microorganisms; A non-aeration step of stopping the operation of the anaerobic device and performing anaerobic process by microorganisms; A precipitation step of stopping the operation of the air diffuser and the stirring device; And a discharge step of discharging treated water and sludge in the continuous batch type bioreactor, wherein the aeration step and the non-aeration step alternately proceed, the aeration step is performed over four times or more, And the step is carried out three times or more.

Description

TECHNICAL FIELD [0001] The present invention relates to a water treatment method and an apparatus used therefor,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a water treatment method using an SBR method and a device used therein, and more particularly, to a water treatment method using an ICEAS SBR method and an apparatus used therefor.

Domestic sewage, livestock wastewater discharged from livestock farms, industrial wastewater discharged from factories (hereinafter referred to as "sewage") contain pollutants such as various organic substances, nitrogen and phosphorus in addition to floats.

When sewage is discharged into rivers in the state of containing pollutants, there may be eutrophication phenomenon in rivers, which causes massive growth of algae. Large-scale algae can shut down most of the flora and fauna in the river by blocking sunlight and increasing oxygen consumption. Accordingly, various sewage treatment methods can be applied to remove contaminants such as floating matters, various organic substances, nitrogen, and phosphorus contained in sewage before discharging the sewage to the river.

One of these sewage treatment methods is SBR (Sequencing Batch Reactor). The SLB method is a time-sharing sewage treatment method in which sewage inflow, anaerobic, aerobic, anaerobic reaction, precipitation and discharge processes are periodically performed in a single reaction tank, ie, SLB, including anaerobic tank, aerobic tank, anoxic tank, Which can be distinguished from the space-distributed A20 method. As a result, the SLR method has an advantage that it can be applied to a small-scale sewage treatment facility installed on a small site. In particular, the continuous inflow intermittent discharge type SLB method is a continuous inflow method in which the low processing capacity, which is one of the problems of the intermittent inflow method, is improved and the site area is increased.

Korean Patent Laid-Open Publication No. 10-2005-0095571 (Sep. 29, 2005, Continuous-flow intermittent discharge type continuous batch type bioreactor and sewage treatment method therefor)

The embodiments of the present invention can provide a water treatment method by the SBR method in which the continuous batch type bioreactor is divided and a device used therein.

According to one aspect of the present invention, there is provided a continuous batch bioreactor in which sewage is continuously introduced; A stirring device for generating a horizontal flow of sewage in a longitudinal direction of the continuous batch bioreactor; Aeration device for supplying air to the continuous batch type bioreactor; A treated water discharging device for discharging the treated water separated from the sewage contained in the continuous batch type bioreactor to the outside; And a sludge discharge device for discharging the sludge separated from the sewage contained in the continuous batch type bioreactor to the outside, wherein the continuous batch type bioreactor is formed at the front end of the continuous batch type bioreactor, An inflow inlet; A biological mixing portion which is separated from the inflow portion by a booster and into which the sewage of the inflow portion is introduced through a booster hole formed at a lower end of the booster; A biological reaction part which is separated from the biological mixing part and in which the agitation device and the sludge discharge device are disposed; And a discharge unit formed at a rear end of the continuous batch type bioreactor and separated from the biological reaction unit, wherein the treated water discharge unit is disposed, the water treatment method using the water treatment apparatus comprising: Aeration step of performing an aerobic process by microorganisms; A non-aeration step of stopping the operation of the anaerobic device and performing anaerobic process by microorganisms; A precipitation step of stopping the operation of the air diffuser and the stirring device; And a discharge step of discharging treated water and sludge in the continuous batch type bioreactor, wherein the aeration step and the non-aeration step alternately proceed, the aeration step is performed over four times or more, And the step is carried out three times or more.

Wherein the biological reacting section is separated from the biological mixing section by an up booster, the sewage of the biological mixing section includes an up booster hole formed in an upward sloping manner in the up booster and a gap between the up booster and the side wall of the continuous batch biological reactor To the biological reaction unit.

The up booster may extend from the bottom of the continuous batch type bioreactor to the lower side of the water surface of the sewage contained in the bioreactor.

Wherein the discharge portion is formed at a downstream end of the continuous batch type bioreactor and separated from the bioreactor by a down booster, the sewage in the bioreactor is downwardly sloped downward in the down booster, Can be introduced through the gaps between the side walls of the batch type bioreactor.

The down booster may extend from the bottom of the continuous batch type bioreactor to a lower side of the water surface of the sewage contained in the bioreactor.

The down booster may include a sterone remover disposed above the down booster hole and protruding downward toward the discharge unit.

The diffusion device comprising: a drop pipe extending to a lower portion of the continuous batch bioreactor; A distribution header pipe extending horizontally at a lower end of the drop pipe; A manifold formed between the drop pipe and the distribution header pipe; An air supply pipe branched from the distribution header pipe and extending horizontally from the inlet to the outlet; A plurality of acid bases for spraying the air of the air supply pipe upward; And a membrane coupled to the acid base and having a plurality of first air outlets to form a containment space for receiving air to be injected from the acid base in cooperation with the acid base.

Wherein the diffuser has a funnel-shaped diffuser holder connected to the air supply pipe and injecting air upward; A retainer for fixing the diffuser holder to the air supply pipe; And an orifice formed at a lower portion of the diffuser holder, the orifice connecting the inside of the air supply pipe and the inside of the diffuser holder.

Wherein the air diffuser is disposed on the upper side of the membrane and is coupled to the continuous batch type bioreactor so as to be movable up and down, and air bubbles discharged through the first air outlet are connected to a non- The spreader may further include a spreader for diffusing into the drop region.

The spreader can be lifted by air bubbles that are seated on the upper surface of the membrane by its own weight and discharged through the first air outlet.

Wherein the spreader comprises: a cover plate surrounding the membrane and having a plurality of second air outlets; And an annular guide ring extending upward at an edge of the cover plate and coupled to the guide bar upwardly extending from the bottom surface of the continuous batch bioreactor so as to be movable upward and downward.

A part or whole of the guide ring may be formed with a water-filled plotter.

The diffuser may further include a guide column which is coupled to the continuous batch type bioreactor and is disposed between the plurality of acid bases and has a curved surface formed on the side to downwardly guide the air bubbles moved along the guide collar have.

The treated water discharging device is vertically moved by a traction device installed in the continuous batch type bioreactor and includes treated water of the continuous batch type bioreactor with decanterware, decanter trough and decanter gutter, And a decanter provided with side walls to prevent the inflow of scum; A downcomer pipe extending downward from the decanter; A collector pipe coupled to a lower end of the downcomer pipe to collect treated water; And a treatment water discharge pipe rotatably coupled to the collector pipe through a swivel joint and fixed to the continuous batch bioreactor.

The treated water discharging device may further include a connection pipe interposed between the collector pipe and the swivel joint and rotatably coupled to the collector pipe through a joint part.

According to another aspect of the present invention, there is provided a continuous batch bioreactor in which sewage is continuously introduced; A stirring device for generating a horizontal flow of sewage in a longitudinal direction of the continuous batch bioreactor; Aeration device for supplying air to the continuous batch type bioreactor; A treated water discharging device for discharging the treated water separated from the sewage contained in the continuous batch type bioreactor to the outside; And a sludge discharge device for discharging the sludge separated from the sewage contained in the continuous batch type bioreactor to the outside, wherein the continuous batch type bioreactor is formed at the front end of the continuous batch type bioreactor, An inflow inlet; A biological mixing portion which is separated from the inflow portion by a booster and into which the sewage of the inflow portion is introduced through a booster hole formed at a lower end of the booster; A biological reaction part which is separated from the biological mixing part and in which the agitation device and the sludge discharge device are disposed; And a discharge portion formed at a rear end of the continuous batch type bioreactor and separated from the biological reaction portion, wherein the treated water discharge device is disposed.

According to the embodiments of the present invention, the continuous batch type bioreactor includes the stirring device, the anaerobic device, the treated water discharging device, and the sludge discharging device and has an inlet portion, a biological mixing portion, a biological reaction portion, , SS, TN, TP removal efficiency, low maintenance cost, and excellent organic removal efficiency.

Since the continuous batch type bioreactor is constructed by dividing by the plurality of booster, the booster can increase the reaction time of the sewage, absorb the shock due to the variation of the flow rate of the sewage, solve the vortex caused by continuous inflow of sewage, The up-booster can increase the mixing efficiency with the micro-organism by increasing the up-and-down agitation efficiency by flowing the sewage into the upward flow, and the reaction efficiency is increased, As a result, the efficiency of mixing up with the microorganism is increased and the reaction efficiency is increased. By the Seeston remover attached on the upper booster hole, the effluent of sludge and cestone is excluded when the treated water is discharged, The discharge efficiency can be increased.

Conventionally, it is possible to simply mix only on the upper part of the apparatus. However, by installing the spreader, the non-air bubble area between the air diffuser and the air diffuser is completely mixed to increase the treatment efficiency and reduce the installation cost and maintenance cost. There is an advantage that it is easy.

The discharging device can improve the quality of treated water by eliminating foreign materials such as decanterware, scum pivoting float, and sidewalls, which can be introduced at the time of discharge of treated water.

The decanter with the swivel joint increases the descending and rising speed for discharging the treated water to increase the discharged amount of the treated water, thereby reducing the discharge time of the treated water and increasing the reaction time to increase the overall treatment efficiency, And the outflow of the cestone can be prevented.

1 is a view illustrating a water treatment system using a water treatment apparatus according to an embodiment of the present invention.
2 is a view illustrating a water treatment apparatus according to an embodiment of the present invention.
3 is a view showing a continuous batch type bioreactor.
4 is a view showing a diffuser.
5 is a plan view showing a diffuser.
6 is a diagram showing the air diffuser in a driving state.
7 is a view showing a treated water discharging device.
8 is a front view showing an example of the treated water discharging device.
Fig. 9 is a view showing a joint portion formed in the treated water discharging device of Fig. 8; Fig.
10 is a view showing a swivel joint formed in the process water discharging device of FIG.
11 is a flowchart schematically showing a water treatment method according to another embodiment of the present invention.
12 is a view showing an operation model of a water treatment method according to another embodiment of the present invention.
13 is a view showing another operation model of the water treatment method according to another embodiment of the present invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise. Also, throughout the specification, the term "on" means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction.

Furthermore, the term " coupled " does not mean that only a physical contact is made between the respective components in the contact relation between the respective constituent elements, but the other components are interposed between the respective constituent elements, It should be used as a concept to cover until the components are in contact with each other.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a water treatment method and an apparatus used therefor according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, The same reference numerals are assigned to the same elements and a duplicate description thereof will be omitted.

FIG. 1 is a view showing a water treatment system using a water treatment apparatus according to an embodiment of the present invention. FIG. 2 is a view showing a water treatment apparatus according to an embodiment of the present invention, and FIG. 3 is a view showing a continuous batch type bioreactor to be.

1 to 3, a water treatment apparatus 10 according to an embodiment of the present invention includes a continuous batch type bioreactor 100, a stirring device 200, a diffuser 300, a treated water discharging device 400 And a sludge discharging device 500.

In the continuous batch type bioreactor (100), sewage can be continuously introduced.

In the continuous batch type bioreactor 100, sewage treatment is performed by the microorganisms contained in the sludge, so that sewage can be separated into treated water and sludge. Here, the treated water may be the remaining portion of the sludge after the pollutants such as nitrogen and phosphorus are removed from the sewage.

The continuous batch type bioreactor 100 includes an inflow section 110, a biological mixing section 130, a biological reaction section 150, and a discharge section 170 ).

The inlet 110 may be formed at the front end of the continuous batch type bioreactor 100. The sewage introduced from the outside of the continuous batch bioreactor 100 can be supplied to the inlet 110 primarily. The diffuser (300) may be disposed in the inlet (110). The inlet 110 may be formed over a range of 10% to 30% of the total length of the continuous batch bioreactor 100. The inflow section 110 can be separated from the biological mixing section 130 by the booster 120.

The booster 120 may extend from the bottom of the continuous batch bioreactor 100 to the upper side of the water surface of the sewage contained in the inflow section 110. The booster 120 may be a wall. A booster hole 121 connecting the inflow section 110 and the biological mixing section 130 may be formed through the booster 120 at the lower end of the booster 120. [ The booster hole 121 formed in the booster 120 can increase the reaction time of the sewage and absorb the shock caused by the fluctuation of the flow rate of the sewage. It can eliminate the vortex caused by continuous inflow of the sewage, can do.

The biological mixing unit 130 may be disposed between the inflow unit 110 and the biological reaction unit 150. The sewage contained in the inflow section 110 may be introduced into the biological mixing section 130 through the booster hole 121. The biological mixing section 130 may provide a space where the sewage introduced from the inflow section 110 can be sufficiently mixed with the microorganisms. The anaerobic device 300 may be disposed in the biological mixing unit 130. The biological mixing unit 130 may be separated from the biological reaction unit 150 by the up booster 140.

The up booster 140 may extend to the lower side of the water surface W of the sewage contained in the biological reaction unit 150 at the bottom of the continuous batch bioreactor 100. The up booster 140 may be a wall. The up booster 140 may include an up booster hole 141 connecting the biological mixing unit 130 and the bio-reaction unit 150 through the up booster 140. The up-booster hole 141 is formed to be upward sloped from the bio-mixer 130 to the bio-reactor 150, thereby generating upward flow of sewage, thereby increasing the vertical stirring efficiency and increasing the mixing and reaction efficiency with microorganisms have. That is, the exit of the up booster hole 141 can be arranged higher than the entrance of the up booster hole 141. The outlet of the up-booster hole 141 is disposed above the sludge settled in the bio-reaction part 150 by being spaced upward from the bottom of the bio-reaction part 150, so that the effect of continuous inflow of sewage Can be excluded. Since the up booster 140 extends only to the lower side of the water surface W of the sewage contained in the bio-reaction unit 150, the sewage contained in the bio-mixing unit 130 is supplied to the up booster 140 The bioreactor 150 may be connected to the bioreactor 150 through the top of the bioreactor 150. The up booster 140 is spaced apart from the side wall of the continuous batch type bioreactor 100 so that the sewage contained in the bio mixer 130 is separated from the up booster 140 and the side walls of the continuous batch type bioreactor 100 The bioreactor 150 can be introduced into the bioreactor 150 through a gap between the bioreactor 150 and the bioreactor 150.

The biological reaction unit 150 may be disposed between the biological mixing unit 130 and the discharge unit 170. The sewage contained in the biological mixing unit 130 may be introduced into the biological reaction unit 150 through the up booster hole 141. The bioreactor 150 may provide a space for sewage treatment, sedimentation and sludge discharge by microorganisms. The bioreactor 150 may include a stirrer 200, a diffuser 300, and a sludge discharge device 500. The bioreactor 150 may be formed over an area of 70% or more of the entire length of the continuous batch type bioreactor 100 and may have a length to width of 2 to 10 mm to exclude the influence of continuous inflow of sewage when the sludge is settled. 4: 1. ≪ / RTI > The bio-reaction unit 150 may be separated from the discharge unit 170 by the down booster 160.

The down booster 160 may extend to the lower side of the water surface W of the sewage contained in the biological reaction unit 150 at the bottom of the continuous batch bioreactor 100. The down booster 160 may be a wall. The down booster 160 may include a down booster hole 161 connecting the biological reaction unit 150 and the discharge unit 170 to the down booster 160. The down-booster hole 161 is formed downwardly from the bio-reaction unit 150 to the discharge unit 170, thereby generating a downward flow of sewage, thereby increasing the vertical stirring efficiency and increasing the mixing and reaction efficiency with microorganisms . That is, the outlet of the down booster hole 161 may be arranged lower than the inlet of the down booster hole 161. The inlet of the down-booster hole 161 is disposed above the sludge settled in the bio-reaction part 150 by being spaced upward from the bottom of the bio-reaction part 150, so that the influence due to the continuous inflow of sewage Can be excluded. Since the down booster 160 extends only to the lower side of the water surface W of the sewage contained in the biological reaction unit 150, the sewage contained in the biological reaction unit 150 is not only discharged to the down booster hole 161 As shown in FIG. The down booster 160 is spaced apart from the side wall of the continuous batch type bioreactor 100 so that the sewage contained in the bioreactor 150 is separated from the down booster 160 and the side walls of the continuous batch type bioreactor 100 So that it can be introduced into the discharge part 170 through the gap of the discharge part 170. The down booster 160 may be provided with a sterone remover 163 disposed on the upper side of the down booster hole 161 and protruding downward toward the discharge unit 170. As a result, the seaston remover 163 can prevent foreign matter such as sludge and seastone from being discharged together with the treated water to be discharged when the treated water is discharged, thereby preventing deterioration in the quality of the treated water.

The discharge portion 170 may be formed at the rear end of the continuous batch type bioreactor 100. The sewage contained in the biological reaction unit 150 may be introduced into the discharge unit 170 through the down booster hole 161. The diffuser (300) and the treated water discharge device (400) may be disposed in the discharge part (170).

The stirring device 200 can generate a horizontal flow of sewage in the longitudinal direction of the continuous batch type bioreactor 100. To this end, the stirring device 200 may be installed on both side walls of the continuous batch type bioreactor 100 to generate a horizontal flow in opposite directions to each other. That is, one stirring device 200 installed on one side wall of the continuous batch type bioreactor 100 can generate a horizontal flow from the front end side to the rear end side of the continuous batch type bioreactor 100, The other stirring device 200 provided on the opposite side wall of the continuous batch type bioreactor 100 can generate a horizontal flow from the rear end side to the front end side. As a result, the stirring apparatus 200 can generate a circulating flow on the horizontal plane. The stirring apparatus 200 may include an impeller which rotates about a rotational axis extending horizontally.

The air diffuser (300) can supply the air required for aerobic reaction of the microorganisms to the continuous batch type bioreactor (100).

Fig. 4 is a view showing a diffuser, Fig. 5 is a plan view showing the diffuser, and Fig. 6 is a view showing the diffuser in a driven state.

4 to 6, the air diffuser 300 includes a drop pipe 301, a manifold 302, a distribution header pipe 303, an air supply pipe 310, a acid portion 320, a membrane 330, A spreader 340, and a guide post 350.

The drop pipe 301 may be connected to the blower S disposed on the outside of the continuous batch type bioreactor 100 to receive air and extend downward to the lower portion of the continuous batch type bioreactor 100.

The manifold 302 may be formed between the drop pipe 301 and the distribution header pipe 303.

The distribution header pipe 303 may extend horizontally at the lower end of the drop pipe 301. That is, the air can be transferred to the distribution header pipe 303 through the drop pipe 301 and the manifold 302 in order.

The air supply pipe 310 is branched from the distribution header pipe 303 and can be supplied with air through the distribution header pipe 303. The air supply pipe 310 is disposed below the continuous batch type bioreactor 100, And can be horizontally extended to the portion 170.

The acid base 320 is coupled to the air supply pipe 310 and can discharge the air conveyed through the air supply pipe 310 upward. The plurality of acid bases 320 may be spaced apart from each other in the longitudinal direction of the air supply pipe 310. The diffuser 320 includes a funnel-shaped diffuser holder 321 connected to the air supply pipe 310 and injecting air upward, an air supply pipe 310 formed inside the diffuser holder 321, An orifice 322 connecting the inside of the diffuser holder 321 and a retainer 323 fixing the diffuser holder 321 to the air supply pipe 310.

The membrane 330 may cooperate with the acid base 320 to form a receiving space C for receiving the air injected from the acid base 320. [ To this end, the membrane 330 may be circular as in the upper edge of the acid base 320 and may be joined to the acid base 320 along the upper edge of the acid base 320. The membrane 330 may be normally horizontal and may expand upward as the pressure in the receiving space C increases as air is injected through the acid base 320. When the membrane 330 expands, a plurality of first air outlets 331 formed in the membrane 330 are opened, so that the air injected through the acid part 320 is supplied to the sewage through the first air outlets 331 .

The spreader 340 may be disposed on the upper side of the membrane 330. The spreader 340 can be coupled to the continuous batch type bioreactor 100 so as to be movable up and down. Specifically, the spreader 340 may be slidably coupled to the guide bar 180 extending upward from the bottom surface of the continuous batch type bioreactor 100. A stopper 190 for limiting the maximum height of the spreader 340 may be coupled to the upper end of the guide bar 180. The spreader 340 may be normally mounted on the membrane 330 by its own weight and may be raised by air pressure formed when air bubbles are injected through the first air outlet 331. The spreader 340 may include a cover plate 341 and a guide ring 343. The cover plate 341 may be secured to the membrane 330 to protect the membrane 330 by wrapping the membrane 330. A plurality of second air outlets 342 may be formed in the cover plate 341 to penetrate the cover plate 341 up and down. The guide collar 343 may extend upwardly at an angle from the edge of the cover plate 341. The guide ring 343 may be annular. The guide bar 180 can be slidably engaged with the guide ring 343. [ The spreader 340 can diffuse the air bubbles discharged through the first air outlet 331 to the sides of the acid base portion 320. That is, the air bubbles discharged through the first air outlet 331 rise through the second air outlet 342 or move along the lower surface of the cover plate 341, As shown in Fig. As a result, the non-air bubble area Z that can be formed between the plurality of acid bases 320 can be minimized. In other words, the non-air bubble region Z may be formed in which the air bubbles are not supplied between the plurality of acid bases 320 as a result of the upward movement of most of the air bubbles injected from the acid base portion 320, The size of the non-air bubble area Z can be reduced. As a result, it is possible to reduce the installation amount of the mountain portion 320, thereby reducing the cost required for installation and maintenance, and maintenance can be facilitated. On the other hand, a part or all of the guide ring 343 is formed with a water-filled floater 345, so that the upward movement of the spreader 340 can be facilitated.

The guide pillars 350 may be coupled to the continuous batch bioreactor 100. The guide pillars 350 may be disposed between the plurality of acid bases 320. The guide pillar 350 may be formed on the side portion with a curved surface that guides the air bubbles downward at the upper portion. That is, the upper portion of the guide column 350 may have a shape increasing in diameter as the height increases. As a result, the guide column 350 can further reduce the size of the non-air bubble area Z by generating a downward flow of air bubbles.

The treated water discharging device 400 can discharge the treated water separated from the sewage contained in the continuous batch bioreactor 100 to the outside of the continuous batch bioreactor 100.

8 is a front view showing a process water discharging device, Fig. 9 is a view showing a joint portion formed in the process water discharging device of Fig. 8, Fig. 10 is a view showing a process Fig. 2 is a view of a swivel joint formed in a water discharge device.

7 to 10, the process water discharging apparatus 400 includes a decanter 410, a downcomer pipe 420, a collector pipe 430, a joint 440, a connecting pipe 450, a swivel joint 460 and a process water discharge pipe 470.

The decanter 410 can be moved up and down by a traction device 480 installed in the continuous batch type bioreactor 100. The traction device 480 may include a wire winch, an actuator, a belt, a chain, and the like.

The decanter 410 includes a decanterware 411, a decanter trap 412 and a decanter gutter 413 so that the treated water of the continuous batch type bioreactor 100 can be introduced into the decanter 410. The decenterware 411 may refer to an inlet through which the treated water flows into the decanter 410. The decanter trough 412 is in the form of a funnel and can be coupled to the downcomer pipe 420. The decanter gutter 413 may refer to an outlet through which the treated water is discharged from the decanter 410. The decanterware 411 may be formed at the upper end of the decanter trough 412 and the decanter gutter 413 may be formed at the lower end of the decanter trough 412. The decanter 410 also includes a scum pivoting float 414 and a sidewall 415 to prevent scum inflow. The scum pivoting float 414 may be constructed in a tank structure so as to float on the water and may be rotatably coupled to the decanter trough 412 through the sidewall 415. The sidewall 415 extends from both ends of the scum pivoting float 415 to the decanter trough 412 to prevent the scum from flowing between the scum pivoting float 415 and the decanter trough 412.

The downcomer pipe 420 may extend downward from the decanter 410 and may transfer the treated water introduced from the decanter 410 to the collector pipe 430

The collector pipe 430 is coupled to the lower end of the downcomer pipe 420 to collect the treated water conveyed through the downcomer pipe 420. That is, when there are a plurality of downcomer pipes 420 connected to the collector pipe 430, the treated water conveyed through each downcomer pipe 420 may be collected in the collector pipe 430. The collector pipe 430 may extend horizontally.

The joint portion 440 may be formed between the end of the collector pipe 430 and one end of the coupling pipe 450. The collector pipe 430 may be rotatably coupled to the coupling pipe 450 through the joint portion 440. The joint portion 440 may include a hollow first cylindrical portion 441, a first sleeve 443, a first flange cover 445, and a rotary seal 447. The first cylindrical portion 441 may be coupled to a flange formed at an end of the coupling tube 450 to rotate together with the end of the coupling tube 450. The first sleeve 443 may be coupled to the outer circumferential surface of the collector pipe 430 to rotate together with the collector pipe 430 and may be in close contact with the inner circumferential surface of the first cylindrical portion 441. The first flange cover 445 is coupled to the end of the first cylindrical portion 441 to close the inlet of the gap formed between the first cylindrical portion 441 and the collector pipe 430. To this end, the first flange cover 445 may be annular. The rotary seal 447 can be disposed between the first sleeve 443 and the first flange cover 445 and is interposed between the first cylindrical portion 441 and the collector pipe 430, 441 and the collector pipe 430, it is possible to prevent the sewage or treated water from leaking. The collector pipe 430 is rotatably coupled to the coupling pipe 450 through the joint part 440 having a simplified structure, so that process water can be discharged smoothly without fear of leakage.

The connection pipe 450 may extend vertically to the collector pipe 430 and the process water discharge pipe 470. An elbow curved at 90 ° is formed at both ends of the coupling pipe 450 so that the coupling pipe 450 can be rotatably coupled to the collector pipe 430 through the joint part 440 at one end, And can be rotatably coupled to the process water discharge pipe 470 through the pipe 460.

The swivel joint 460 may be formed between the other end of the connection pipe 450 and one end of the process water discharge pipe 470. The connection pipe 450 may be rotatably coupled to the process water discharge pipe 470 through the swivel joint 460. The swivel joint 460 may include a hollow second cylindrical portion 461, a second sleeve 463, and a second flange cover 465. The second cylindrical portion 461 may be coupled to a flange formed at an end of the coupling tube 450 to rotate together with the end of the coupling tube 450. The second sleeve 463 may be coupled to the outer circumferential surface of the process water discharge pipe 470 and may be in close contact with the inner circumferential surface of the second cylindrical portion 461. The second flange cover 465 is engaged with the end of the second cylindrical portion 461 to close the inlet of the gap formed between the second cylindrical portion 461 and the process water discharge pipe 470. For this purpose, the second flange cover 465 may be annular. The connection pipe 450 is rotatably coupled to the process water discharge pipe 470 through the swivel joint 460 having a simplified structure so that smooth process discharge can be performed without fear of leakage.

The process water discharge pipe 470 may be fixed to the continuous batch bioreactor 100 and horizontally extended so as to be arranged parallel to the collector pipe 430. The treated water discharge pipe 470 is extended through the continuous batch type bioreactor 100 so that one end thereof can be horizontally extended inside the continuous batch type bioreactor 100 and the other end is extended to the outside of the continuous batch type bioreactor 100 And can be connected to the treatment bath 20. The rotary joint connecting the decanter 410 and the process water discharge pipe 470 to the joint portion 440 and the swivel joint 460 is constituted by multiple stages to increase the descent speed of the decanter 410, The water discharge time can be shortened, the reaction time can be increased to increase the treatment efficiency, and the sludge and the cestone can be prevented from leaking by quickly reaching the set water level.

The sludge discharging device 500 can discharge the sludge separated from the sewage contained in the continuous batch bioreactor 100 to the outside of the continuous batch bioreactor 100. The sludge discharge device 500 may include a sludge discharge pipe connected to the lower part of the bio-reaction part 150 and an open / close valve installed in the sludge discharge pipe. The sludge discharge pipe may be connected to the sludge storage tank 30.

11 is a flowchart schematically showing a water treatment method according to another embodiment of the present invention.

Referring to FIG. 11, the water treatment method according to another embodiment of the present invention is a water treatment method using the SBR method, including a first discarding step S100, a first non-discarding step S110, a second discarding step S120, The second unreleasing step S130, the third releasing step S140, the third non-releasing step S150, the fourth releasing step S160, the settling step S170, and the discharging step S180 , A water treatment apparatus 10 according to an embodiment of the present invention.

First, in the aeration steps (S100, S120, S140, and S160), the aerosolization device 300 may be driven to perform aerobic processes by microorganisms. At this time, the stirring device 200 may also be in the driving state, and the driving of the treated water discharging device 400 and the sludge discharging device 500 may be stopped. That is, the decanter 450 may be disposed above the water surface W, and the opening / closing valve of the sludge discharging device 500 may be closed. The abandonment steps (S100, S120, S140, S160) can be made to be 30 minutes or less for each step. In the non-aeration stages (S110, S130, and S150), the anaerobic process using the microorganisms can be performed while the driving of the air diffuser 300 is stopped and the stirring device 200 is driven or stopped. At this time, the driving of the treated water discharging device 400 and the sludge discharging device 500 can be stopped. The non-abandonment steps (S110, S130, S150) may be 28 minutes or less for each step. The releasing step (S100, S120, S140, S160) and the non-releasing step (S110, S130, S150) are alternately performed, The abandoning steps (S110, S130, S150) can be performed over three times or more. In the four step (S160) is NH ₃ -N sewage can be not more than 20mg / ℓ and the TP may be not more than 2mg / ℓ.

Next, in the precipitation step (S170), the driving of the agitator 200 and the air diffuser 300 can be stopped so that the sludge can be settled. Treatment water can be formed on the upper side of the sludge. The precipitation step (S170) may be 60 minutes or less.

Next, in the discharging step S180, the treated water discharging device 400 and the sludge discharging device 500 can be driven so that treated water discharging and sludge discharging can be performed. At this time, the stirrer 200 and the air diffuser 300 can be stopped. In the water treatment method according to another embodiment of the present invention, the continuous batch organisms (S100, S120, S140, and S160), the non-aeration steps (S110, S130, S150), the settling step Sewage can be continuously introduced into the reaction tank (100). The water treatment method according to another embodiment of the present invention can be performed within 4.8 hours per one time, and can be controlled by the control unit so as to process 1/6 to 1/4 of the set flow rate per one cycle, which is repeated five times a day.

FIG. 12 illustrates an operation model of a water treatment method according to another embodiment of the present invention, and FIG. 13 illustrates another operation model of the water treatment method according to another embodiment of the present invention.

Referring to FIGS. 12 and 13, the operation model of the water treatment method according to another embodiment of the present invention is separately shown as a maximum operation operation and an emergency operation operation, respectively.

It will be apparent to those skilled in the art that various modifications and additions to, or additions to, the components may be made without departing from the scope of the present invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

C: Capacity space
S: blower
W: Sleep
Z: non-air bubble region
10: Water treatment device
20: Treatment tank
30: Sludge storage tank
40: disinfection device
100: continuous batch type bioreactor
110: inlet
120: Booster
121: Booster hole
130: biological mixing section
140: Up Booster
141: Up Booster Hole
150: biological reaction unit
160: Down Booster
161: Down Booster Hall
163: Seeston Remover
170:
180: Guide bar
190: Stopper
200: stirring device
300: aeration device
301: Drop pipe
302: Manifold
303: Distribution header pipe
310: air supply pipe
320:
321: Diffuser holder
322: Orifice
323: Retainer
330: Membrane
331: First air outlet
340: spreader
341: Cover plate
342: second air outlet
343: Guide ring
345: Plotter
350: Guide pillar
400: treated water discharging device
410: decanter
411: Decanterware
412: Decanter Truffle
413: decanter gutters
414: Schem pivoting float
415: Sidewall
420: Downcomer pipe
430: Collector pipe
440: joint part
441:
443: first sleeve
445: first flange cover
447: Rotary seal
450: Connector
460: Swivel joint
461:
463: second sleeve
465: Second flange cover
470: Process water outlet pipe
480: Towing device
500: sludge discharge device

Claims (10)

A continuous batch bioreactor into which sewage is continuously introduced;
A stirring device for generating a horizontal flow of sewage in a longitudinal direction of the continuous batch bioreactor;
Aeration device for supplying air to the continuous batch type bioreactor;
A treated water discharging device for discharging the treated water separated from the sewage contained in the continuous batch type bioreactor to the outside; And
And a sludge discharge device for discharging the sludge separated from the sewage contained in the continuous batch type bioreactor to the outside,
The continuous batch type bioreactor comprises:
An inflow section formed at a front end of the continuous batch type bioreactor and continuously introducing sewage;
A biological mixing portion which is separated from the inflow portion by a booster and into which the sewage of the inflow portion is introduced through a booster hole formed at a lower end of the booster;
A biological reaction part which is separated from the biological mixing part and in which the agitation device and the sludge discharge device are disposed; And
And a discharge part formed at a rear end of the continuous batch type bioreactor and separated from the biological reaction part, in which the treated water discharge device is disposed,
The treated water discharging device includes:
A decanterware, a decanter trough, and a decanter gutter to allow the treated water of the continuous batch type bioreactor to flow in, and a scum pivoting float and a sidewall are provided, A decanter for preventing inflow;
A downcomer pipe extending downward from the decanter;
A collector pipe coupled to a lower end of the downcomer pipe to collect treated water; And
Wherein the collector pipe is rotatably coupled through a swivel joint and is fixed to the continuous batch bioreactor,
The above-
A drop pipe extending to a lower portion of the continuous batch bioreactor;
A distribution header pipe extending horizontally at a lower end of the drop pipe;
A manifold formed between the drop pipe and the distribution header pipe;
An air supply pipe branched from the distribution header pipe and extending horizontally from the inlet to the outlet;
A plurality of acid bases for spraying the air of the air supply pipe upward;
A membrane coupled to the acid base to form a containment space for receiving air ejected from the acid base in cooperation with the acid base, the membrane having a plurality of first air outlets; And
Air bubbles discharged through the first air outlet are diffused into a non-air bubble region formed between the plurality of acid bases, And a spreader.
The method according to claim 1,
The treated water discharging device includes:
Further comprising a connection pipe interposed between the collector pipe and the swivel joint and rotatably coupled to the collector pipe through a joint portion.
delete The method according to claim 1,
The acid-
A funnel-shaped diffuser holder connected to the air supply pipe for spraying air upward;
A retainer for fixing the diffuser holder to the air supply pipe; And
And an orifice formed at a lower portion of the diffuser holder for connecting the inside of the air supply pipe and the inside of the diffuser holder.
delete The method according to claim 1,
Wherein the spreader is mounted on the upper surface of the membrane by self weight and is raised by air bubbles discharged through the first air outlet.
The method according to claim 1,
The spreader
A cover plate surrounding the membrane and having a plurality of second air outlets; And
And an annular guide ring extending upward at an edge of the cover plate and coupled to the guide bar upwardly extending from the bottom surface of the continuous batch bioreactor so as to be vertically movable.
8. The method of claim 7,
Wherein a floater filled with water is formed on a part or the whole of the guide ring.
8. The method of claim 7,
The above-
Further comprising a guide pillar coupled to the continuous batch bioreactor and disposed between the plurality of acid bases and having a curved surface formed on the side thereof for guiding downward air bubbles moved along the guide collar.
A water treatment method using the water treatment apparatus according to claim 1,
Aeration step of performing the aerobic process by microorganisms by driving the anaerobic device;
A non-aeration step of stopping the operation of the anaerobic device and performing anaerobic process by microorganisms;
A precipitation step of stopping the operation of the air diffuser and the stirring device; And
And a discharge step of discharging treated water and sludge in the continuous batch type bioreactor,
Wherein the aeration step and the non-aeration step are alternately performed such that the aeration step is performed over four times and the non-aeration step is performed over three or more times.

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