KR20130029656A - Sewage purification treatment system - Google Patents

Abstract

PURPOSE: A sewage purification treatment system is provided to remarkably improve purification efficiency, to improve the durability of a backwashing filter, and to remarkably increase purification efficiency. CONSTITUTION: A sewage purification treatment system comprises a purifier(100), a hollow fiber membrane filtering apparatus(200), a backwashing storage tank(300), a filtering apparatus(400), a pump(500), and a controller. The purifier is divided into an inflow bath(110), an aeration tank(120), an anoxic chamber(130), and a discharge tank(140). The hollow fiber membrane filtering apparatus has a plurality of hollow membrane pipes. The backwashing storage tank is installed in the outer side of the purifier and selectively stores the treated water for backwashing the hollow fiber membrane filtering apparatus. The filtering apparatus filters the treated water and discharge the final treated water. The pump transfers the water to the hollow fiber membrane filtering apparatus. The controller controls the backwashing treatment of the hollow fiber membrane filtering apparatus.

Description

Purification and treatment system for phosphorus and nitrogen removal of sewage and wastewater {SEWAGE PURIFICATION TREATMENT SYSTEM}

The present invention relates to a purification and treatment system for removing phosphorus and nitrogen of wastewater, and more particularly, is provided inside the discharge tank provided at the rear end of the septic tank for reacting and sedimenting and purifying the wastewater flowing into the inflow water tank. And a hollow fiber membrane filter device, a backwash water storage tank and a controller for filtering while passing through the treated water introduced into the discharge tank side, and a washing device for removing foreign matter adsorbed on the outer surface of the hollow fiber membrane filter device is provided. The present invention relates to a purification system for removing phosphorus and nitrogen from wastewater and wastewater to improve the purification efficiency by allowing the backwashing and surface cleaning of the hollow fiber membrane filter device to be better.

In general, the lack of awareness of the importance of the environment in the course of rapid economic development is well known from the fact that the pollution, as well as the water quality, has reached a very severe level.

In particular, household sewage, agricultural and livestock waste, and industrial wastewater generated in the course of human activities are contributing to pollution of public waters such as appeals, inner bays and inland seas, and small and medium urban streams.

In addition, in recent years, due to urban population concentration due to rapid industrial development, the proportion of inorganic and organic components in wastewater and wastewater is gradually increasing along with the increase of various water volumes.

Such waste water contains high concentrations of organic substances such as chemical oxygen demand (COD), biochemical oxygen demand (BOD), suspended solids (SS), nitrogen and phosphorus, and flows into rivers, lakes, dams, etc. Pollution, as well as the destruction of the ecosystem due to toxicity will adversely affect the environment. Therefore, the waste water and waste water are set to a predetermined standard, and purified and drained to below a predetermined standard value.

As a conventional control technique for treating wastewater as described above, various techniques using a filter have been proposed, but most of the wastewater treatment apparatus using a filter according to the prior art simply filters the wastewater. It is composed of a type that filters foreign substances such as sludge and suspended solids, so there is a problem that the throughput of waste and waste water is limited.

On the other hand, the wastewater treatment device as described above may be a septic tank, for example, and the septic tank is from the inflow tank, the inflow water tank in which the sewage of the wastewater is made to settle the solids contained in the wastewater. It is composed of a reaction tank which supplies oxygen to the supernatant introduced and purifies through the growth of microorganisms and decomposition of organic matter, a settling tank which precipitates particulate solids of the supernatant water introduced from the reactor, and an outlet for discharging the treated water introduced from the settling tank to the outside. Is done.

However, since the wastewater treatment apparatus according to the prior art as described above purifies the wastewater introduced through the inflow water tank, the reaction tank and the sedimentation tank to discharge the treated water as described above, the water quality of the treated water is good. There is a problem that it does not.

In addition, the wastewater treatment apparatus according to the prior art as described above is useful for the removal of SS (suspension material) because the treatment wastewater discharged by purifying the wastewater introduced through the inflow water tank, the reaction tank and the sedimentation tank. However, there is a problem that there is a limit to the removal of nitrogen and phosphorus may be another source of pollution.

Furthermore, the wastewater treatment apparatus according to the prior art has a separate filtering device for purifying and filtering the treated water, but even in this case, the backwashing treatment is not performed on the filter portion of the filtering device. .

Therefore, a wastewater treatment system or a wastewater treatment system through such a wastewater treatment system, which improves the water quality of the treated water while removing nitrogen and phosphorus, as well as increasing the purification efficiency of the filter portion. Research and development of technology for the situation is required.

In order to solve the above problems, the present invention is provided inside the discharge tank provided at the rear end of the septic tank for reacting and sedimenting the sewage and waste water flowing into the inflow tank while passing through the treated water introduced to the discharge tank side. A hollow fiber membrane filter device for filtering, a backwash water storage tank and a controller are provided, and a washing device for removing foreign matter adsorbed on the outer surface of the hollow fiber membrane filter device is provided to improve the water quality of the treated water as well as to wash. It is an object of the present invention to provide a purification system for removing phosphorus and nitrogen from wastewater and wastewater, which enables the surface cleaning of the hollow fiber membrane filter device to be performed through the device to improve the purification treatment efficiency.

Another object of the technology according to the present invention is to provide a purifier injection device for injecting a purifying chemical for the removal of phosphorus, nitrogen into the aeration tank to improve the removal of nitrogen and phosphorus contained in the waste water. have.

Another object of the technology according to the present invention is provided by a controller, a forward pump and a backwash water storage tank is controlled by a controller, the drive of the system can be driven by alternating purification and backwash treatment, according to the hollow fiber membrane filter The purpose of the present invention is to increase the durability of the filter device by backwashing the device and to significantly improve the purification treatment efficiency by the hollow fiber membrane filter device.

The present invention for achieving the above-mentioned objects is as follows. That is, in the purification and treatment system for phosphorus and nitrogen removal of waste water according to the present invention, the inside is separated and formed in the order of the inflow tank, the aeration tank, the anoxic tank, and the discharge tank, while the contaminated water introduced into the inflow tank is the inflow tank, the aeration tank, The inflow tank, aeration tank, anoxic tank, and the upper part of the discharge tank are each equipped with separate lids, while the inflow tank, aeration tank, anoxic tank, and discharge tank are configured to be discharged to the outside after being purified through the anoxic tank and the discharge tank. In the purification treatment system for phosphorus and nitrogen removal of wastewater and wastewater, comprising a septic tank having a water flow passage formed therethrough in a partition between neighboring tanks so that fluid flows through the tank. The lengthwise path therein is used to filter foreign substances contained in the treated water while passing through the treated water flowing into the discharge tank. A hollow fiber membrane filter device having a plurality of hollow fiber membrane pipes fixed to the crab; A backwash water storage tank installed outside the septic tank and selectively storing the treated water filtered through the hollow fiber membrane filter device at a predetermined level for backwashing of the hollow fiber membrane filter device; A filtration filter device installed at one side of the septic tank with the backwash water storage tank interposed therebetween to introduce the treated water that has passed through the hollow fiber membrane filter device and to filter and discharge the final treated water; In order to connect the hollow fiber membrane filter device, the backwash water storage tank and the filtration filter device, the pump is alternatively pumped in both directions, and is disposed between the septic tank and the backwash water storage tank, and the treated water is passed through the hollow fiber membrane filter device. A forward / reverse pump transferring the backwash water stored in the filtration filter device side or the backwash water storage tank to the hollow fiber membrane filter device; And detecting the water level of the backwash water storage tank, and selectively changing the conveying direction of the treated water and the backwash water stored in the backwash water storage tank to purify the wastewater and the hollow fiber membrane filter device. The controller further includes a controller for controlling the backwashing process.

Here, the aeration tank is further provided with a purifier input device for injecting a purifying chemical for removal of phosphorus, nitrogen at a predetermined time interval inside the aeration tank to remove nitrogen and phosphorus contained in the contaminated water in the aeration tank at the top. This is preferred.

In addition, the hollow fiber membrane pipe is formed to extend a predetermined length in a 'U' shape, a pair of openings are located on one side, while the hollow fiber membrane filter device is a round end side end of the 'U' shape of the hollow fiber membrane pipe The first pipe fixing plate is fixed; A second pipe fixing plate opposed to the first pipe fixing plate and fixed to the opening side end of the hollow fiber membrane pipe; While both ends are provided in an open cylindrical shape, the hollow fiber membrane pipes having both ends fixed to the first pipe fixing plate and the second pipe fixing plate are installed so that both ends opened by the first pipe fixing plate and the second pipe fixing plate are sealed. Main body housing; A first lid coupled to one end of the body housing such that a predetermined space is formed at a predetermined distance from the first pipe fixing plate sealing the open end of the body housing; And a predetermined space spaced apart from the second pipe fixing plate which seals the other open end of the main body housing to form a predetermined space, and transfers the treated water discharged through the opening of the hollow fiber membrane pipe to one of the forward and reverse pumps on one surface thereof. It is preferably configured to include a second lid having an outlet.

In this case, the first and second pipe fixing plate is in close contact with both open ends of the main body housing in a state in which both ends of the hollow fiber membrane pipe is fixed, the main body housing can be fixed through the first and second lids It is preferably formed in the shape of a disc corresponding to the inner diameter of, while the contact protrusions are formed to protrude outward in pairs with the thickness of the end portion of the main body housing with a predetermined interval along the circumferential direction.

In addition, the hollow fiber membrane filter device may be provided with any one of the grid housing or perforated network type so that the treated water stored in the discharge tank via the hollow fiber membrane pipe.

Furthermore, the hollow fiber membrane filter device is inserted into the coupling groove formed in the downward recess in the circumferential direction opposite to the upper surface of the expansion portion is formed to extend outwardly formed on the upper end of the coupling portion formed to be coupled to the upper end of the discharge tank when rotating In order to be fixed, it is preferable that the fixing protrusion is formed to protrude outward by a predetermined length in the circumferential direction of the second lid so as to correspond to the coupling groove.

On the other hand, and further comprising a washing means for washing the foreign matter attached to the body housing surface of the hollow fiber membrane filter device, the washing means is fixed to surround the hollow fiber membrane filter device spaced apart from the outer surface of the hollow fiber membrane filter device A washing network main body having a fixing clamp fixed to the outer circumferential surface of the second lid in the center of the upper surface; A washing ball that is received inside the washing net body and separates and cleans the foreign matter adhering to the screen of the strainer while flowing in the washing net body; And an air injection device disposed in the bottom of the inside of the washing net body to selectively flow the washing ball into the washing net body, and selectively injecting air into the washing net body by a blower connected from the outside. It is preferably made of.

Here, the air injection device is provided on the bottom portion of the main body of the cleaning network, while connected to the air coiled pipe and one end of the air injection tube of a circular coil shape extending so that the diameter gradually increases from the center of the washing network body to the outside And it may be composed of a blower for introducing air into the air injection pipe.

In addition, the air injection pipe of the air injection device is preferably a circular coil-shaped portion is disposed on the inner bottom portion of the main body of the cleaning network.

Further, the air injection pipe is formed with an air injection hole in at least one direction of at least one of the four sides of the outer surface so that the air is injected into the main body of the cleaning network, the air injection hole is a predetermined interval along the longitudinal direction of the air injection pipe It is preferably formed spaced apart.

On the other hand, the filtration filter device is a hollow filter case formed in a predetermined length on both sides opening; A first filtration mat installed inside the front end of the filter case to filter foreign substances from the treated water; A biofilter which is installed at a rear end of the first filtration mat inside the filter case and is filled with a bioball for purifying water through contact with treated water; A charcoal filter installed at a rear end of the first filtration mat inside the filter case to supply various minerals to the treated water which is filled with coconut charcoal while filtering foreign substances; A second filtration mat installed at a rear end of the char filter inside the filter case and filtering foreign matter from the treated water passing through the char filter; And it is preferred that the front end and the rear end of the filter case is coupled through a screw coupling, each of which consists of a cap formed with a nozzle hole.

Here, the first filtration mat is composed of a sponge mat for filtering the foreign matter from the treated water is formed before and after; And it is installed between the sponge mat may be made of a configuration of the coconut mat to filter the foreign matter and supply of minerals.

At this time, the filtration filter device is wrapped through the outer space of the filter case so as to be discharged through the nozzle hole of the cap coupled to the rear end of the filter case is filtered through the inner space without freezing in the winter season, The first heating coil may be further controlled by a controller to selectively generate heat periodically for a predetermined time depending on the surface temperature of the filter case.

In addition, the backwash storage tank wraps around the outer surface of the backwash water storage tank so that the backwash water stored in the inner space does not freeze in the winter, and is controlled by the controller to selectively periodically periodically maintain the backwash water storage tank according to the surface temperature of the backwash water storage tank. A second heating coil for generating heat may be further provided.

And, inside the aeration tank is provided with a cross bar across the top and bottom intervals, the screen type microorganism contact medium is installed on the cross bar, while the inside of the aeration tank is provided with an diffuser for supplying air into the aeration tank It is preferred to be installed.

The effect of the purification treatment system for phosphorus and nitrogen removal of waste water according to the present invention is as follows.

First, the hollow fiber membrane filter device for filtering while passing through the treated water introduced into the discharge tank, which is provided inside the discharge tank provided at the rear end of the septic tank for reacting and sedimenting the sewage and waste water flowing into the inflow tank, and backwash water storage While the tank and the controller are provided, the cleaning device for removing foreign matter adsorbed on the outer surface of the hollow fiber membrane filter device is provided to improve the water quality of the treated water, as well as to wash the surface of the hollow fiber membrane filter device through the washing device. This can significantly improve the purification treatment efficiency.

Second, by providing a purifier injection device for injecting a purifying chemical for the removal of phosphorus, nitrogen into the aeration tank, it is possible to improve the removal of nitrogen and phosphorus contained in the waste water.

Third, the controller, the forward pump and the backwash storage tank is provided by the controller to control the drive of the system can be driven by alternately purifying and backwash treatment, according to the filter device through the backwash of the hollow fiber membrane filter device In addition to increasing durability, the efficiency of purification treatment by the hollow fiber membrane filter device can be significantly improved.

1 is an overall configuration diagram showing a purification treatment system for phosphorus and nitrogen removal of waste water according to the present invention.
2 is a cross-sectional configuration diagram showing a hollow fiber membrane filter device which is a main part of a purification system for removing phosphorus and nitrogen of waste water according to the present invention.
Figure 3 is an isolated perspective view showing a hollow fiber membrane filter device which is a main part of a purification and treatment system for phosphorus and nitrogen removal of waste water according to the present invention.
4 is a cross-sectional configuration diagram showing a filtration filter device which is a main part of a purification system for removing phosphorus and nitrogen of waste water according to the present invention.
5 and 6 is an operational state diagram showing the purification and backwashing state of the purification system for phosphorus and nitrogen removal of waste water according to the present invention.
7 is an overall configuration diagram showing another embodiment of the purification treatment system for phosphorus and nitrogen removal of waste water according to the present invention.
8 is an overall configuration diagram showing another embodiment of the purification treatment system for phosphorus and nitrogen removal of waste water according to the present invention.
Figure 9 is a separate configuration showing the cleaning means for cleaning the main body housing surface of the hollow fiber membrane filter device which is the main part in the phosphorus-nitrogen removal purification system of waste water according to the present invention.
FIG. 10 is a cross-sectional view illustrating an operation of the washing unit of FIG. 9.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the purifying treatment system for phosphorus and nitrogen removal of waste water according to the present invention.

1 is an overall configuration diagram showing a phosphorus-nitrogen removal purification system for wastewater according to the present invention, and FIG. 2 is a hollow fiber membrane which is a main part of the phosphorus-nitrogen removal purification system for wastewater according to the present invention. Figure 3 is a cross-sectional configuration diagram showing a filter device, Figure 3 is a separate perspective configuration diagram showing a hollow fiber membrane filter device which is a main part of the purification system for removing phosphorus and nitrogen of waste water according to the present invention, Figure 4 is A cross-sectional configuration diagram showing a filtration filter device which is a main part of a phosphorus / nitrogen removal purification system of wastewater and wastewater, and FIGS. 5 and 6 are purification treatments of a purification system for phosphorus / nitrogen removal of wastewater according to the present invention. And a working state diagram showing the backwashing state.

As shown in Figures 1 to 6, the purifying treatment system for phosphorus and nitrogen removal of the waste water according to a preferred embodiment of the present invention, the purification tank 100, hollow fiber membrane filter device 200, backwash water storage tank 300 , Filtration filter device 400, the stationary pump 500 and the controller 600 is made.

Here, the septic tank 100 is formed inside of the inflow water tank 110, the aeration tank 120, the anaerobic tank 130 and the discharge tank 140 in order from one side, the contamination introduced into the inflow water tank 110 The water passes through the inflow tank 110, the aeration tank 120, the anaerobic tank 130 and the discharge tank 140, and is configured to be discharged to the outside after being purified.

At this time, the inlet water tank 110, the aeration tank 120, the oxygen-free tank 130 and the discharge tank 140, each of which is equipped with a separate lid, the inflow water tank 110, aeration tank 120, anoxic tank ( 130 and the partition wall between the neighboring tank and the tank so that the fluid flows in the order of the discharge tank 140 is preferably formed through the water movement passage.

In addition, the aeration tank 120 has a purification agent for removing phosphorus and nitrogen at regular intervals to the inside of the aeration tank 120 to remove nitrogen and phosphorus contained in the contaminated water in the aeration tank 120 at the top. It is preferable that the purifier input device 121 for injection is further provided. As such, since the purifier input device 121 is provided, phosphorus and nitrogen contained in the contaminated water introduced through the inflow water tank 110 may be efficiently removed.

In addition, the inside of the aeration tank 120 is provided with a cross bar 122 is maintained across the top and bottom, the cross bar 122 is provided with a screen type microbial contact medium 123, the aeration tank 120 In the lower side of the inside is preferably an diffuser 124 for supplying air into the aeration tank 120 is installed.

On the other hand, the hollow fiber membrane filter device 200 is installed inside the septic tank 100 as described above so that the upper surface thereof is exposed to the outside, the hollow fiber membrane filter device 200 is a process flowing into the discharge tank 140. It has a plurality of hollow fiber membrane pipe 210 is arranged in a longitudinal direction in the inside so as to filter the foreign matter contained in the treated water while passing through the water.

In other words, the hollow fiber membrane filter device 200 passes the treated water introduced into the discharge tank 140 through the hollow fiber membrane pipe 210 to the backwash water storage tank 300 or the filtration filter device 400. It is transferred to the side selectively.

Here, the hollow fiber membrane pipe 210 of the hollow fiber membrane filter device 200 is formed to extend a predetermined length in the 'U' shape so that the pair of openings 211 is located on the upper side, according to the discharge tank 140 The filtered water may be filtered in the middle of the treated water introduced into the through-hole and discharged through the opening 211 through the outer surface of the hollow fiber membrane pipe 210.

In detail, the hollow fiber membrane filter device 200 includes a hollow fiber membrane pipe 210 having a predetermined length extending in a 'U' shape and having a pair of openings 211 located thereon, and including a first pipe fixing plate ( 220, the second pipe fixing plate 230, the main body housing 240, the first lid 250 and the second lid 260 is further configured.

At this time, the first pipe fixing plate 220 of the 'U' shape of the hollow fiber membrane pipe 210 is fixed to the round end side end.

In addition, the second pipe fixing plate 230 is provided to face the first pipe fixing plate 220, and an opening 211 side end portion of the hollow fiber membrane pipe 210 penetrates so that the opening 211 is one surface. It is preferable to be fixed to open outward.

In addition, the main body housing 240 is provided in a cylindrical shape with both ends open, while the lower and the upper end, that is, both ends are fixed to the first pipe fixing plate 220 and the second pipe fixing plate 230, the hollow fiber membrane pipe 210 is internally sealed so that both ends opened by the first pipe fixing plate 220 and the second pipe fixing plate 230 are sealed.

Therefore, the treated water introduced through the plurality of through holes formed on the outer surface of the main body housing 240 may be guided to the hollow fiber membrane pipe 210 and filtered to be discharged to the opening 211.

That is, the main body housing 240 is provided with any one of a grid net or a perforated net type, and the treated water flowing into and stored in the discharge tank 140 through a plurality of through holes formed on the surface of the main body housing 240 is hollow. Guided to the inside of the desert pipe 210, the treated water guided in this way may be filtered in the middle of the hollow fiber membrane pipe 210 is discharged to the opening 211.

Meanwhile, the first lid 250 and the second lid 260 are coupled to both ends of the main body housing 240, respectively, and the first lid 250 seals the open lower end of the main body housing 240. Preferably, the first pipe fixing plate 220 is coupled to a lower end of the main body housing 240 so that an inner space is formed at a predetermined distance.

In addition, the second lid 260 is spaced apart from the second pipe fixing plate 230 by a predetermined distance to seal the open upper end of the main body 240, a predetermined space is formed, the hollow fiber membrane pipe on one surface A feed discharge port 261 is formed to transfer the treated water discharged through the opening 211 of the 210 to the forward and reverse pump 500.

In addition, the first pipe fixing plate 220 and the second pipe fixing plate 230 described above are formed in a disc shape corresponding to the inner diameter of the main body housing 240, respectively, and have a predetermined interval along the circumferential direction of the main body housing. Preferably, a pair of contact protrusions 221 and 231 are formed to protrude outward as much as the end thickness of 240.

That is, the pair of adhesion protrusions 221 and 231 are formed so that both ends of the hollow fiber membrane pipe 210 are fixed to the first pipe fixing plate 220 and the second pipe fixing plate 230, respectively. Penetrating through the opening of the main body housing 240 may be in close contact with both ends of the main housing 240 may be fixed through the first lid 250 and the second lid 260.

In addition, the hollow fiber membrane filter device 200 has a circumferential direction on the upper surface of the expansion portion 146 extending outwardly formed from the upper end of the coupling portion 145 extending upwardly so that the lid is coupled to the upper end of the discharge tank 140. Accordingly, the fixing protrusion is projected outwardly by a predetermined length in the circumferential direction of the second lid 260 to correspond to the coupling groove 146a so as to be inserted into the coupling groove 146a recessed downwardly so as to face each other. 263 is preferably formed.

That is, after the hollow fiber membrane filter device 200 is inserted into the coupling portion 145 of the discharge tank 140, the hollow fiber membrane filter device 200 is fixedly coupled as it rotates. The coupling portion 145 of the 140 is a hollow fiber membrane filter device 200 is inserted and fixed without a lid.

The hollow fiber membrane filter device 200 as described above is connected through the forward and reverse pump 500 and the transfer pipe 150, that is, one end of the transfer pipe 150 is the second of the hollow fiber membrane filter device 200 The other end of the transfer pipe 150 is connected to the forward / reverse pump 500 while the transfer outlet 261 is formed to protrude from the lid 260.

On the other hand, the backwash water storage tank 300 is installed outside the septic tank 100, the backwash water storage tank 300 is treated water filtered through the hollow fiber membrane filter device 200 is the hollow fiber membrane filter device ( It is preferably stored at a certain level to be used for back washing of 200).

The backwash water storage tank 300 is provided with a water level sensor 310 for detecting the level of the backwash water inside, while the backwash valve (320) on the backwash pipe 320 connected to the forward and reverse pump 500 side ( 321 is provided, the backwash valve 321 is preferably controlled through the controller 600 in accordance with the detection by the water level sensor (310).

At this time, the water level sensor 310 is a reverse water wash water level detection sensor 311 and a reverse water wash water level detection sensor on the inner upper and lower portions of the backwash water storage tank 300 to detect whether the water level of the backwash water is full water level or low water level. It is preferable that each of the 312 is provided, and such a backwash water level sensor 311 and a backwash water level sensor 312 are preferably connected to the controller 600.

In addition, the filtration filter device 400 is installed on one side of the hollow fiber membrane filter device 200 with the backwash water storage tank 300 interposed therebetween, and the treated water that has passed through the hollow fiber membrane filter device 200 is forward and reversed. After the inlet is filtered by forward driving of the pump 500, the final treated water is discharged to the outside.

Meanwhile, the forward and reverse pump 500 may be alternatively pumped in both directions so as to connect the hollow fiber membrane filter device, the backwash water storage tank, and the filtration filter device, that is, the pump is driven in the forward and reverse directions.

The stationary pump 500 is one side is connected to the hollow fiber membrane filter device 200 by the pumping pipe 520, while the other side is connected to the filtration filter device 400 and the purification treatment pipe 420.

At this time, in the center of the purification pipe 420, according to the forward or reverse driving of the forward and reverse pump 500, the transfer of the treated water in any one direction of the filtration filter device 400 and the backwash water storage tank 300 side A switching valve 510 for selectively switching the path is provided.

Here, the switching valve 510 provided at the center of the purification pipe 420 is preferably connected to the back washing pipe 320 of the backwash water storage tank 300.

Furthermore, one side of the switching valve 510 provided at the center of the purification pipe 420, that is, the filtration filter device 400, may purify the inflow and blocking of the treated water to the filtration filter device 400. Preferably, a treatment valve 421 is provided.

As described above, the forward and reverse pump 500 is selectively treated through the hollow fiber membrane filter device 200 through the switching valve 510, the purification valve 421, and the backwash valve 321. It may be transferred to the filtration filter device 400 side, or the backwash water stored in the backwash water storage tank 300 to the hollow fiber membrane filter device 200 side.

Here, the switching valve 510, the purification treatment valve 421 and the backwash valve 321 is preferably controlled in connection with the controller 600, respectively.

That is, the controller 600 detects the water level of the backwash water storage tank 300 and simultaneously transfers the treated water passing through the forward / reverse pump 500 and the backwash water stored in the backwash water storage tank 300. By selectively switching and blocking the direction, control is performed for the purification of the waste water and the backwashing of the hollow fiber membrane filter device.

In addition, the controller 600 is provided in the upper and lower portions of the discharge tank 140, respectively, is connected to the low water level sensor 149a and the low water level sensor 149b for detecting the water level of the treated water in the discharge tank 140. It is preferable to control the driving of the forward and reverse pump 500 according to the detected water level.

In this case, the high water level sensor 149a and the low water level sensor 149b detect the level of the treated water flowing from the oxygen-free tank 130 and stored in the discharge tank 140, and the detection is performed by the controller 600. And forwarded to the forward / reverse pump 500 according to the water level detected by the high water level sensor 149a and the low water level sensor 149b in the discharge tank 140 through the controller 600. Control can be made.

In other words, when the high water level of the discharge tank 140 is detected through the high water level sensor 149a, the forward and reverse pump 500 is driven through the controller 600, and the low water level sensor 149B is used. When the low water level of the discharge tank 140 is detected, the driving of the forward and reverse pump 500 is stopped through the controller 600.

On the other hand, the filtration filter device 400 is the first filter mat for filtering the foreign matter from the treated water is installed inside the filter case 451, the front end of the filter case 451, the filter case 451 formed in a predetermined length both sides are opened 452, a biofilter 453 filled with a bioball, which is installed at a rear end of the first filtration mat 452 inside the filter case 451, and which is purified through contact with treated water passing through the filter case 451, the filter case A char filter 454 which is installed at the rear end of the first filtration mat 452 in the inner side, and supplies various minerals to the treated water through which coconut charcoal is filled, and filters foreign substances, and the filter case 451. The second filter mat 455 is installed at the rear end of the char filter 454 and filters the foreign matter from the treated water passing through the char filter 454 and the front end and the rear end of the filter case 451. Combined through each Is made of the configuration of the cap 456 is formed with a nozzle hole (456a).

Looking at the filtering process of the treated water through the filtration filter device 400 configured as described above, first, the nozzle hole 456a of the cap 456, the end of the purification treatment pipe 420 is coupled to the front end of the filter case 451. When the inflow of the treated water is connected to the inflow, the introduced treated water is filtered through the first filtration mat 452 to filter foreign substances contained in the treated water.

Next, the treated water passing through the first filtration mat 452 is treated water through contact with far infrared rays or bioballs emitted from the bioball filled in the biofilter 453 in the course of passing through the biofilter 453. Purification takes place.

As such, the treated water purified in the process of passing through the biofilter 453 is subsequently passed through the char filter 454 installed. In this process, the treated water is supplied with various minerals contained in the char inside the char filter 454.

As described above, the treated water in which various minerals are supplied in the process of passing through the charcoal filter 454 is finally processed through the second filtration mat 455 installed at the rear end of the charcoal filter 454 so that the final treated water is filtered. It is discharged to the outside through the nozzle hole 456a of the cap 456 coupled to the rear end of the case 451.

The first filtration mat 452 constituting the filtration filtering device 400 as described above is configured by the front and rear sponge sponge 452a for filtering foreign matter from the treated water flowing through the hollow fiber membrane filter device 200 and It is provided between the sponge mat 452a is composed of a coconut mat (452b) to allow the filtration of foreign matters and the supply of minerals. The first filtration mat 452 configured as described above can effectively filter foreign matters from the treated water passing through the sponge mat 452a and the coconut mat 452b. The final treated water may be a filter case ( 451 is discharged to the outside through the nozzle hole 456a of the cap 456 coupled to the rear end.

On the other hand, in the purifying system for removing phosphorus and nitrogen of waste water according to the present invention as described above, the state of the purifying and back-cleaning treatment of the hollow fiber membrane filter device 200, which is the main part, will be described as follows. .

First, the purification and backwashing treatment system for phosphorus and nitrogen removal of wastewater and wastewater is purged and backwashed for a predetermined time, for example, 50 minutes purification and 10 minutes backwashing, etc. through the controller 600. It is driven alternately every certain time.

At this time, the purification process, the contaminated water stored in the inflow water tank 110 side of the septic tank 100, phosphorus, nitrogen is removed through the aeration tank 120, and is purified by microorganisms and the treated water is transferred to the anaerobic tank 130.

Thereafter, after the precipitation is made from the treated water through the anoxic tank 130, it is transferred to the discharge tank 140, and thus the treated water transferred to the discharge tank 140 and stored according to the forward operation of the forward and reverse pump 500. The hollow fiber membrane filter device 200 is introduced into the hollow fiber membrane pipe 210 and further filtered.

Further, the filtered water additionally filtered through the hollow fiber membrane filter device 200 is guided to the backwash water storage tank 300 via the forward / reverse pump 500 and is provided inside the backwash water storage tank 300. The backwash valve 321 is shut off when the stored water level of the backwash water reaches the full water level by the washing water full water level sensor 311.

Subsequently, the filtered water is guided into the hollow fiber membrane pipe 210 of the hollow fiber membrane filter device 200 and discharged into the opening 211 to further filter the purified water treatment valve 421 on the purification pipe 420. The filter is introduced into the filtration filter device 400 through the forward / reverse pump 500, and finally filtered while being transferred from the front end of the filtration filter device 400 to the rear end, and the final filtered final treatment water of the filtration filter device 400. It is discharged to the outside through the nozzle hole 456a of the cap 456 provided at the rear end.

Meanwhile, after the above purification process is performed for a predetermined time, a backwashing process for removing foreign matter adsorbed on the surface of the hollow fiber membrane pipe 210 provided in the hollow fiber membrane filter device 200 by the controller 600 is performed. The driving of the backwashing process is performed as follows.

First, the purification valve 421 provided on the purification pipe 420 on the side of the filtration filter device 400 is blocked by the controller 600, and the switching valve 510 is backwashed. The reverse washing valve 321 is opened while being converted to the side.

Thereafter, the forward and reverse pump 500 is driven in the reverse direction, and the reverse wash water stored from the backwash water storage tank 300 flows into the feed outlet 261 side of the hollow fiber membrane filter device 200 through the forward and reverse pump 500.

The backwash water introduced in this way is guided to the openings 211 of the plurality of hollow fiber membrane pipes 210 installed in the hollow fiber membrane filter device 200 and discharged to the pipe surface through the inner space of the hollow fiber membrane pipe 210. Foreign matter adsorbed on is separated and removed.

The backwashing process as described above, when the water level of the backwash water storage tank 300 reaches a low water level, the backwash valve 321 is detected by the backwash water low water level sensor 312 by the controller 600. By closing, the backwashing process is completed.

On the other hand, the above-described process of the purification process and the backwashing process is performed by the controller 600 are periodically alternated for a predetermined time, the purification process and the backwashing process are alternately made by the hollow fiber membrane filter device ( It is possible to improve the filtering efficiency of 200).

7 is an overall configuration diagram showing another embodiment of the purification treatment system for phosphorus and nitrogen removal of waste water according to the present invention.

7 is different from the embodiment described with reference to FIGS. 1 to 6 in that the first heating coil 401 and the second heating coil 301 are installed and controlled by the controller 600 ′. In the following, only the configuration having a difference will be described with emphasis, and the same configuration will be referred to with reference to FIGS. 1 to 6.

As shown in FIG. 7, the filtration filter device 400 installed at one side of the stationary pump 500 with a backwash water storage tank 300 interposed therebetween in a purification and treatment system for phosphorus and nitrogen removal of wastewater according to the present invention. ) Is filtered through the internal space so that the final treated water discharged through the nozzle hole 456a of the cap 456 coupled to the rear end of the filter case 451 can be discharged without freezing in the winter season. It is preferable that the first heating coil 401 is further provided to surround the outer surface of the control panel and controlled by the controller 600 to generate heat according to the surface temperature of the filter case 451.

Here, the first heating coil 401 is heated by the controller 600 when the temperature is 5 ° C or less based on a reference temperature, for example, ± 5 ° C, to generate heat, and when the temperature is 5 ° C or more, the heating is terminated. The reference temperature is preferably controlled. The range of the reference temperature may be set by the user in various ways according to environmental conditions.

Meanwhile, the backwash water storage tank 300 surrounds the outer surface of the backwash water storage tank 300 so that the backwash water stored in the internal space does not freeze in winter, and is controlled by the controller 600 to control the surface temperature of the backwash water storage tank. In accordance with the second heat generating coil 301, which selectively generates heat for a predetermined period of time, it is preferable to be further provided.

In this case, the second heating coil 301 is heated by the controller 600 when the temperature is 5 ° C or less based on a reference temperature, for example, ± 5 ° C, and generates heat, and when the temperature is 5 ° C or more, the heating is terminated. The reference temperature is preferably controlled. The range of the reference temperature may be set by the user in various ways according to environmental conditions.

The purifying treatment system for phosphorus and nitrogen removal of wastewater and wastewater according to the present invention as described above, purifies the treated water on one side of the septic tank 100 for purifying by reacting and sedimenting the wastewater flowing into the inflow water tank 110. The water quality of the treated water is better by providing an additional filtering device of the hollow fiber membrane filter device 200 and the filtration filter device 400 for secondarily filtering the treated water stored in the discharge tank 140 while forcibly transferring it. It can be done.

In addition, by providing a purifier injection device 121 for injecting a purifying chemical for removing phosphorus and nitrogen into the aeration tank 120, it is possible to improve the removal of nitrogen and phosphorus contained in the waste water.

Furthermore, the controller 600 and the backwash water storage tank 300 are provided to be controlled by the controller 600 so that the driving of the purification treatment system is alternately driven by the purification treatment and the backwashing treatment. It is possible to increase the durability of the filter device 200 and at the same time improve the purification treatment efficiency by the hollow fiber membrane filter device 200.

8 is an overall configuration diagram showing still another embodiment of the phosphorus-nitrogen removal purification system for wastewater according to the present invention, and FIG. 9 is a phosphorus-nitrogen purification system for removing wastewater and wastewater according to the present invention. In another embodiment of the present invention is a separate configuration showing the cleaning means for cleaning the main body housing surface of the hollow fiber membrane filter device that is the main part, Figure 10 is a cross-sectional view showing the action of the cleaning means for the cleaning means of FIG.

8 to 10 as described above has a difference in that the washing means 160 is further provided from the embodiment referring to FIGS. 1 to 6. The configuration will be mainly described, and the same reference numerals will be described with reference to FIGS. 1 to 6.

As shown in FIGS. 8 to 10, the purification and treatment system for removing phosphorus and nitrogen of wastewater further includes washing means 160 for washing foreign substances attached to the surface of the main body housing 240 of the hollow fiber membrane filter device 200. It is preferable to make it.

Here, the washing means 160 is preferably made of a configuration including a washing net body 161, the washing ball 165 and the air injection device 166, the washing net body 161 is the hollow fiber membrane filter device (200) It is fixed to surround the hollow fiber membrane filter device 200 is spaced a certain distance from the outer surface, and has a fixed clamp 164 is fixed to the outer peripheral surface of the second lid in close contact with the center.

In addition, the washing ball 165 is accommodated inside the washing net body 161 and flows within the washing net body 161 to separate and wash foreign matter adhering to the surface of the sieve 151.

On the other hand, the air injection device 166 is provided on the inner bottom portion of the washing net body 161 so that the washing ball 165 may flow in the washing net body 161 is connected to the blower (169) By selectively injecting air into the cleaning net body 161.

Here, the air injection device 166 is provided on the bottom of the cleaning net body 161, while the air injection of the circular coil shape extending so that the diameter gradually increases from the center of the cleaning net body 161 to the outside The blower 169 is connected to one end of the pipe 167 and the air injection pipe 167 to introduce air into the air injection pipe 167.

In this case, the air injection pipe 167 is preferably formed with an air injection hole 167a in at least one direction of the outer four sides so that air is injected into the washing net body 161, the air injection hole ( 167a is formed spaced apart from each other along the longitudinal direction of the air injection pipe 167.

That is, the main body of the hollow fiber membrane filter device 200 in which the air generated by the blower 169 is injected through the air injection hole 167a of the air injection pipe 167 and positioned in the cleaning means 160. Foreign matter adhered to the surface of the housing 240 falls.

Here, foreign matters that are separated from the surface of the main body housing 240 is suspended in the cleaning net body 161, and periodically separates the cleaning net body 161 through the fixing clamp 164 according to the cumulative amount of the foreign matter. After emptying it, you can use it again. Thus, maintenance of the cleaning means 160 can be easily made.

In addition, the cleaning means 160 as described above may be controlled by the controller 600, and thus periodically removes the foreign matter adhering to the surface of the strainer 151 provided inside the discharge tank 140, the transfer The transfer of the treated water through the pipe 150 can be maintained smoothly.

Although specific embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and the present invention can be variously modified by those skilled in the art to which the present invention pertains. Is included in the scope of the present invention.

100: septic tank 110: inflow water tank
120: aeration tank 130: anaerobic tank
140: discharge tank 145: connection portion
146: expansion portion 146a: coupling fixing groove
149a: Low water level sensor 149b: Low water level sensor
150: Transfer pipe
200: hollow fiber membrane filter device
210: hollow fiber membrane pipe 211: opening
220: first pipe fixing plate 221, 231: adhesion protrusion
230: second pipe fixing plate 240: the body housing
250: first lid 260: second lid
261: transfer outlet 263: fixed projection
300: backwash water storage tank 301: first heating coil
310: water level sensor 320: backwash pipe
321: backwash valve
400: filtration filter device 401: second heating coil
420: purification pipe 421: purification valve
500: static pump 510: switching valve
600: controller

Claims (15)

While the inside is separated and formed in the order of the inflow tank, the aeration tank, the anaerobic tank and the discharge tank, the contaminated water introduced into the inflow tank is passed through the inflow tank, the aeration tank, the anoxic tank, and the discharge tank to be purified and discharged to the outside. Separate caps are provided at the upper portions of the inflow tank, the aeration tank, the anaerobic tank, and the discharge tank, respectively, and water flow passages are formed in the partition walls between the neighboring tank and the tank so that the fluid flows in the order of the inflow tank, the aeration tank, the oxygen chamber, and the discharge tank. In the purification processing system for phosphorus and nitrogen removal of the wastewater and wastewater comprised including this septic tank,
The hollow fiber membrane filter device having a plurality of hollow fiber membrane pipes are installed inside the discharge tank and arranged in the longitudinal direction in the longitudinal direction so as to filter foreign matter contained in the treated water while passing through the treated water flowing into the discharge tank. ;
A backwash water storage tank installed outside the septic tank and selectively storing the treated water filtered through the hollow fiber membrane filter device at a predetermined level for backwashing of the hollow fiber membrane filter device;
A filtration filter device installed at one side of the septic tank with the backwash water storage tank interposed therebetween to introduce the treated water that has passed through the hollow fiber membrane filter device and to filter and discharge the final treated water;
In order to connect the hollow fiber membrane filter device, the backwash water storage tank and the filtration filter device, the pump is alternatively pumped in both directions, and is disposed between the septic tank and the backwash water storage tank, and the treated water is passed through the hollow fiber membrane filter device. A forward / reverse pump transferring the backwash water stored in the filtration filter device side or the backwash water storage tank to the hollow fiber membrane filter device; And
The water level of the backwash water storage tank is sensed, and the transfer direction of the treated water and the backwash water stored in the backwash water storage tank is selectively switched by purifying the waste water and the reverse of the hollow fiber membrane filter device. A controller for controlling the cleaning process; Purifying treatment system for phosphorus and nitrogen removal of waste water, characterized in that consisting of a further comprising. The method of claim 1,
The aeration tank is further provided with a purifier injection device for injecting a purifying chemical for removal of phosphorus, nitrogen at a predetermined time interval inside the aeration tank so as to remove nitrogen and phosphorus contained in the contaminated water in the aeration tank at the top. Purification and treatment system for phosphorus and nitrogen removal of sewage and wastewater. The method of claim 1,
The hollow fiber membrane pipe is formed to extend a certain length in a 'U' shape, a pair of openings are located on one side, while the hollow fiber membrane filter device is fixed to the round end side end of the 'U' shape of the hollow fiber membrane pipe A first pipe fixing plate;
A second pipe fixing plate opposed to the first pipe fixing plate and fixed to the opening side end of the hollow fiber membrane pipe;
While both ends are provided in an open cylindrical shape, the hollow fiber membrane pipes having both ends fixed to the first pipe fixing plate and the second pipe fixing plate are installed so that both ends opened by the first pipe fixing plate and the second pipe fixing plate are sealed. Main body housing;
A first lid coupled to one end of the body housing such that a predetermined space is formed at a predetermined distance from the first pipe fixing plate sealing the open end of the body housing; And
A transport outlet for transferring the treated water discharged through the opening of the hollow fiber membrane pipe to the stationary pump side, while a predetermined space is formed at a predetermined distance from the second pipe fixing plate which seals the other open end of the main body housing. Purifying treatment system for phosphorus and nitrogen removal of the waste water, characterized in that comprises a second lid having a. The method of claim 3,
The first and second pipe fixing plates are in close contact with both open ends of the body housing in a state where both ends of the hollow fiber membrane pipe are fixed, so that the first and second pipe fixing plates can be fixed through the first and second lids.
Corrosion and wastewater of the wastewater, characterized in that formed in the shape of a disc corresponding to the inner diameter of the main body housing, the contact protrusions are formed outwardly as a pair of end thicknesses of the main body housing with a predetermined interval along the circumferential direction. Purification system for nitrogen removal. The method of claim 3,
The hollow fiber membrane filter device is characterized in that the main body housing is provided in any one of the grid mesh or perforated network type so that the treated water stored in the discharge tank via the inner hollow fiber membrane pipe, phosphorus and nitrogen of the waste water. Purification system for removal. The method of claim 3,
The hollow fiber membrane filter device is inserted into the coupling groove formed in the downward recess is opposed to each other along the circumferential direction on the upper surface of the expansion portion is formed extending outward to the upper end of the coupling portion formed to be coupled to the upper end of the discharge tank is fixed when rotating So as to correspond to the coupling groove, the outwardly protruding by a predetermined length in the circumferential direction of the second lid is a purification process for removing phosphorus and nitrogen of the waste water, characterized in that the fixing projections are formed. The method of claim 3,
Further comprising washing means for washing the foreign matter attached to the body housing surface of the hollow fiber membrane filter device,
The washing means is fixed to surround the hollow fiber membrane filter device spaced apart from the outer surface of the hollow fiber membrane filter device, the washing net body having a fixed clamp fixed to the outer peripheral surface of the second lid in the center of the upper surface;
A washing ball that is received inside the washing net body and separates and cleans the foreign matter adhering to the screen of the strainer while flowing in the washing net body; And
And an air injection device disposed in the bottom portion of the inside of the washing net body so as to flow in the washing net body, and selectively injecting air into the washing net body by a blower connected from the outside. Purification and treatment system for phosphorus and nitrogen removal of the waste water, characterized in that made. The method of claim 7, wherein
The air injection device is connected to one end of the air injection pipe and a circular coil-shaped air injection pipe which is provided on the bottom of the cleaning network main body, the diameter of the cleaning network main body to gradually increase outward from the A purifying and treating system for removing phosphorus and nitrogen from wastewater and wastewater, comprising a blower for introducing air into the air injection pipe. 9. The method of claim 8,
The air injection pipe of the air injection device is a purification system for phosphorus and nitrogen removal of the waste water, characterized in that the circular coil-shaped portion is disposed on the inner bottom of the main body of the cleaning network. 9. The method of claim 8,
The air injection pipe is formed with an air injection hole in at least one direction of at least one of the four sides of the outer surface so that air is injected into the main body of the cleaning network, the air injection hole is spaced apart at regular intervals along the longitudinal direction of the air injection pipe Purification and treatment system for phosphorus and nitrogen removal of waste water, characterized in that formed. The method of claim 1,
The filtration filter device is a hollow filter case formed at a predetermined length by opening both sides;
A first filtration mat installed inside the front end of the filter case to filter foreign substances from the treated water;
A biofilter which is installed at a rear end of the first filtration mat inside the filter case and is filled with a bioball for purifying water through contact with treated water;
A charcoal filter installed at a rear end of the first filtration mat inside the filter case to supply various minerals to the treated water which is filled with coconut charcoal while filtering foreign substances;
A second filtration mat installed at a rear end of the char filter inside the filter case and filtering foreign matter from the treated water passing through the char filter; And
The filter case for the phosphorus and nitrogen removal of the waste water, characterized in that consisting of a cap formed with a nozzle hole is coupled to the front end and the rear end of the filter case, respectively. The method of claim 11,
The first filtration mat is composed of a sponge mat for filtering the foreign matter from the treated water flowing in and out of; And
It is installed between the sponge mat is a purification system for removing phosphorus and nitrogen of waste water, characterized in that consisting of a coconut mat to filter the foreign matter and supply of minerals. The method of claim 11,
The filtration filter device surrounds the outer surface of the filter case so as to be discharged through the nozzle hole of the cap coupled to the rear end of the filter case to be discharged without freezing in the winter season. And a first heating coil controlled by the filter case to generate heat periodically for a predetermined time selectively according to the surface temperature of the filter case. The method of claim 1,
The backwash water storage tank surrounds the outer surface of the backwash water storage tank so that the backwash water stored in the internal space does not freeze in winter, and is controlled by the controller to selectively generate heat periodically for a predetermined time according to the surface temperature of the backwash water storage tank. A purifying treatment system for removing phosphorus and nitrogen of waste water, characterized in that a second heating coil is further provided. The method of claim 1,
The cross bar is installed across the aeration tank to maintain the interval between the top and bottom, the screen type microorganism contact medium is installed on the cross bar, while the lower side of the aeration tank inside the aeration tank for supplying air into the aeration tank is installed A purification and treatment system for removing phosphorus and nitrogen from wastewater and wastewater.

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