KR101307926B1 - Sewage and waste water treatment system - Google Patents

Abstract

PURPOSE: A sewage and wastewater treatment system is provided to be able to prevent the device damage due to the backflow by having a diffuser and a line mixer pipe in an ozone treatment part. CONSTITUTION: A sewage and wastewater treatment system comprises a multiple filtration system (2) including an ozone treatment part (21), a discharged ozone treatment (22) and a sludge treatment part (23); and an ozone system. The ozone treatment part comprises an ozone processing tub; a diffuser; a line mixer pipe; a first inclined plate; and a second inclined plate. The diffuser receives ozone from the ozone system, and emits ozone bubbles. The line mixer pipe is connected to the diffuser, mixes the ozone bubbles and inflow water, and discharges the mixed water and sludge to the ozone processing tub. The first inclined plate is formed within the ozone processing tub with inclination. The second inclined plate is formed to be separated in parallel with the first inclined plate. [Reference numerals] (2) Multiple filtration system; (21) Ozone treatment part; (22) Discharged ozone treatment; (23) Sludge treatment part; (24) Multistage filtration part; (AA) Inlet water; (BB) Processed water; (CC) Filtered water

Description

Sewage and waste water treatment system

The present invention relates to a wastewater treatment system, and more particularly, to a water treatment system capable of efficiently treating wastewater by combining organically the functions of ozone treatment, ozone treatment, sludge treatment, and multistage filtration treatment.

In general, when domestic wastewater, industrial wastewater, and livestock wastewater are discharged as they are, without being treated, they are not only a source of odor but also a source of secondary pollution to the surrounding environment. The equipment must be installed.

Wastewater treatment methods include physicochemical treatment methods such as filtration facilities, chemical agglomeration, sedimentation, ozone decomposition, and ultraviolet disinfection, and biological treatment methods to remove various contaminants by maximizing the metabolism of microorganisms in a bioreactor containing activated sludge. have. In addition, there are various methods such as activated sludge method, contact stabilization method, spraying method, aeration method, catalytic oxidation method, and the like. However, it is not easy to treat contaminants to the quality of discharge or reuse level with these single methods.

As a conventional wastewater treatment system, there is an invention described in Korean Unexamined Patent Publication No. 10-2005-0024489 (ozone oxidation system, hereinafter referred to as "prior art"). The wastewater treatment system according to the prior art is composed of each device to which the wastewater treatment method is applied, that is, an ozone contactor, a sludge removal device, an activated carbon filter, a backwash pump, and the like. However, the above-described prior art of this configuration may cause the clogging of the sand or activated carbon filter during continuous operation, and the backwashing function must be imposed to prevent this, so that the whole system is complicated and the design cost is high. In addition, the filtration function of the activated carbon filter may be degraded and the ozone contactor may be damaged due to the reverse flow during long-term use. Nevertheless, the prior art is not designed to have a structure having a medium replacement and countercurrent durability reflecting the same.

Therefore, it is possible to treat wastewater highly by organically combining the devices having various functions, and the situation is required for an easy operation and management of the wastewater treatment system to replace the filter medium.

The present invention is derived to solve the limitations and problems of the prior art as described above, the organic treatment of ozone treatment, ozone treatment, sludge treatment and multi-stage filtration can be efficiently treated wastewater, Its purpose is to provide a wastewater treatment system that is economical and easy to maintain because it does not require backwashing.

In order to achieve the above object, the wastewater treatment system according to an embodiment of the present invention includes (1) an ozone treatment unit that floats sludge by ozone treatment of inflow water, ② an ozone treatment unit that processes the ozone discharged from the ozone treatment unit, (3) It is preferable to include a multiple filtration system having a sludge treatment unit for treating the sludge, a multi-stage filtration unit for filtering the sludge treated water in multiple stages, and (2) an ozone system for supplying ozone to the ozone treatment unit.

Specifically, the ozone treatment unit includes: (1) an ozone treatment tank that is subjected to ozone treatment, (2) an diffuser that receives ozone from the ozone system and blows out ozone bubbles, and (3) an ozone bubble connected to the diffuser. It may include a line mixer tube to mix the influent and discharge the mixed water and sludge.

The ozone treatment unit may further include a first inclined plate formed to be inclined in the ozone treatment tank, and the line mixer tube may be configured to guide ozone bubbles and sludge of the mixed water discharged along the lower portion of the first inclined plate. It may include a first discharge port located in the lower portion of the inclined plate. In this case, the ozone treatment unit further includes a second inclined plate which is spaced in parallel with the first inclined plate, and the line mixer tube guides ozone bubbles and sludge of the mixed water discharged between the first inclined plate and the second inclined plate. Preferably, it further comprises a second discharge port located between the first inclined plate and the second inclined plate.

In addition, the second inclined plate is preferably formed so that the upper end and the lower end is longer than the first inclined plate, the upper end is bent to one side of the ozone treatment tank to cover the upper end of the first inclined plate.

On the other hand, the multi-stage filtration unit may include (1) a plurality of filtration devices for filtering the treated water, and (2) a distribution pipe for guiding the treated water from which the sludge is removed to the filtration device. In this case, each filtration device is arranged in a laminated structure spaced apart from each other, the distribution pipe discharges the treated water to the top filter.

Specifically, each filtration device includes (1) a porous plate, (2) a first activated carbon nonwoven fabric formed on the porous plate, (3) an activated carbon layer formed on the first activated carbon nonwoven fabric, and (4) on the activated carbon layer It is preferable to include the 2nd activated carbon nonwoven fabric formed in the.

In addition, the multi-stage filtering unit further comprises a cabinet having a multi-stage receiving unit of a laminated structure, each receiving unit includes an opening in the lower portion, it is preferable that the filtration device is disposed in the receiving unit.

In particular, the multi-stage filtration unit has a first filtration outlet and a second filtration outlet located below the first filtration outlet, and may further include a filtration tank for collecting the filtered water filtered by the filtration device. In this case, the multiple filtration system further includes an inlet pipe which is an inflow water passage, wherein the inlet pipe is connected to the second filtration outlet so that the filtered water flows into the ozone treatment unit.

The sludge treatment unit may include a scraping device for scraping the sludge and a sludge collection tank for collecting the sludge scraped from the scraping device. In this case, the scraping apparatus may include (1) a motor, (2) a first sprocket axially coupled to the output shaft of the motor, (3) a second sprocket spaced from the first sprocket, and (4) the first sprocket. And a belt member wound around the second sprocket in an endless track, and (5) a plurality of scrapers installed on the belt member to interlock the sludge by movement of the belt member.

On the other hand, the wastewater treatment system according to the present invention further comprises a sump collecting the wastewater to be discharged to the multi-filtration system, wherein the sump, (1) the first sump receiving the wastewater and the second sump discharges the sump; Separating partition, (2) The first pipe is directed to the upper portion of the first collection tank, the second pipe is directed to the lower portion of the first collection tank, the third pipe is connected to the second collection tank to penetrate the second collection tank It may include. In this case, it is preferable that the second water collecting tank has a water collecting outlet at the bottom.

Wastewater treatment system according to the present invention configured as described above,

(1) As the diffuser and the line mixer tube are equipped in the ozone treatment unit, it is possible to prevent equipment damage due to backflow.

(2) As the ozone system generates ozone using oxygen generated from the oxygen generator, not only the durability and stability of the ozone system is improved,

(3) It can improve the purification efficiency of waste water by treating the waste water through organic connection of ozone treatment, ozone treatment, sludge removal and multi-stage filtration treatment,

(4) In particular, as the multi-stage filtration unit is formed in a cabinet structure, it is easy to replace each filtration device and prevent clogging of the filtration device without a backwashing device, which is economical and convenient for maintenance.

1 is a view showing the overall configuration of a wastewater treatment system according to an embodiment of the present invention.
2 is a view showing in detail the configuration of a multi-filtration system according to an embodiment of the present invention.
3 is a view showing in detail one side of the multi-filtration system according to an embodiment of the present invention.
Figure 4 is a detailed view of the plane of the multi-filtration system according to an embodiment of the present invention.
Figure 5 (a), (b) is a view showing in detail the plane and one side of each configuration of the filtration device according to an embodiment of the present invention.
Figure 6 is a view showing in detail one side of the entire wastewater treatment system according to an embodiment of the present invention.

The above objects, means, and effects thereof will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, and as a result, those skilled in the art to which the present invention pertains may easily facilitate the technical idea of the present invention. It can be done. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Furthermore, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the present invention. In this specification, the singular forms include plural forms as the case may be, unless the context clearly indicates otherwise. &Quot; comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements other than the stated element. Unless defined otherwise, all terms used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

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

1 is a block diagram of a wastewater treatment system according to an embodiment of the present invention.

Wastewater treatment system according to an embodiment of the present invention, as shown in Figure 1, to collect the wastewater to be discharged to the multi-filtration system (2), the influent (hereinafter, the multi-filtration system 2) In the multiple filtration system (2) to filter the incoming waste water in multiples ("influent"), the ozone system (3) for generating ozone and supplying it to the multiple filtration system (2), the multi filtration system (2) It is comprised including the recycle water tank 4 which collects the treated filtration water.

First, the multiple filtration system 2 will be described.

2 shows a schematic diagram of a multiple filtration system 2 according to an embodiment of the invention.

As shown in FIG. 2, the multi-filtration system 2 includes an ozone treatment unit 21 for treating sludge by ozone treatment of influent water, and an ozone treatment unit for treating the ozone discharged from the ozone treatment unit 21 ( 22), the sludge treatment unit 23 for treating the sludge floated through the ozone treatment unit 21, the treated water in which the sludge is treated (hereinafter, treated with sludge after ozone treatment of inflow water is referred to as "treated water") It comprises a multi-stage filtration unit 24 for multi-stage filtration.

3 is a view showing in detail one side of the multi-filtration system 2 according to an embodiment of the present invention. 4 is a view showing in detail the plane of the multi-filtration system 2 according to an embodiment of the present invention.

Specifically, the ozone treatment unit 21, as shown in Figure 3, the ozone treatment tank 211 in which ozone treatment takes place, the diffuser (212) for supplying ozone from the ozone system 3 to eject the ozone bubbles ), It is preferably configured to include a line mixer tube 213 connected to the diffuser 212 to mix the ozone bubbles and influent water to discharge the mixed water and sludge into the ozone treatment tank 211.

That is, the diffuser 212 is supplied with ozone from the ozone system 3 to eject fine ozone bubbles and dissolve in water. The diffuser 212 is made of a corrosion resistant material such as ceramic and stainless steel, and prevents damage due to backflow. It is preferable to be seated inside the line mixer tube 213. In addition, the line mixer tube 213 is connected to the inlet pipe 25 and the diffuser 212, which is a passage through which the inflow water flows into the ozone treatment unit 21, and receives the inflow water and the ozone bubble, respectively. Accordingly, the line mixer tube 213 uniformly mixes the inflow water and the ozone bubbles (hereinafter, referred to as "mixed water" in which the inflow water and the ozone bubbles are mixed) and sterilizes the inflow water, as well as contained in the inflow water. To flocs (hereinafter referred to as "sludge"). The mixed water and sludge generated through the line mixer tube 213 is discharged into the ozone treatment tank 211 to float. More specifically, the mixed water is stored in the ozone treatment tank 211, and the ozone bubbles and sludge in the mixed water rise to the upper portion in the ozone treatment tank 211. Thereafter, the ozone treatment unit 22 processes the floated ozone bubble, and the sludge treatment unit 23 processes the floated sludge.

The line mixer tube 213 may be configured as an in-line mixer that is commonly used. In this case, the line mixer tube 213 is provided with a plurality of elements in the tube for dividing, redirecting, and mixing the fluid while converting the laminar flow into turbulent fluid. Mix continuously during transfer.

In particular, the ozone treatment unit 21 is, as shown in Figure 3, the first formed inclined in the ozone treatment tank 211 to guide the mixed water and sludge discharged from the line mixer tube 213 The inclined plate 214 may be further included. In this case, it is preferable that the first discharge port 213a of the line mixer tube 213 for discharging the mixed water and the sludge is located below the first inclined plate 214. Accordingly, the ozone bubbles and sludge of the mixed water discharged through the first discharge port 213a are guided along the lower portion of the first inclined plate 214 so that the upper one side of the ozone treatment tank 211, that is, the slant The first inclined plate 214 is floated in the direction of the upper exit narrowed. The line mixer tube 213 may include a plurality of first outlets 213a.

In addition, the ozone treatment unit 21 may further include a second inclined plate 215 formed to be spaced apart in parallel with the first inclined plate 214, as shown in FIG. 3. In this case, the second discharge port 213b of the line mixer tube 213 for discharging the mixed water and the sludge is preferably located between the first slope plate 214 and the second slope plate 215. Accordingly, ozone bubbles and sludge of the mixed water discharged through the second discharge port 213b are guided along the upper portion of the first slope plate 214 and the lower portion of the second slope plate 216 to allow the ozone treatment tank ( One side of the upper part 211, that is, the first inclined plate 214 and the second inclined plate 215 in the direction of the top exit. The line mixer tube 213 may include a plurality of second outlets 213b, and a plurality of second inclined plates 215 may be provided to be spaced apart from each other.

On the other hand, the second slope plate 215, as shown in Figure 3, the upper and lower end is formed longer than the first inclined plate 214, the upper end of the first inclined plate 214 at regular intervals It is preferably formed to be bent and extended to one side of the ozone treatment tank 211 so as to cover. In addition, the bent extended portion of the second inclined plate 215 is formed longer than the point of meeting the extension line of the upper end of the first inclined plate 214, it is preferable that the end is formed to be extended to the second bend upward. Accordingly, ozone bubbles and sludge of the mixed water which are discharged through the first outlet 213a and the second outlet 213b and guided along the first inclined plate 214 and the second inclined plate 215 are floated. Along the bent extended portion of the second inclined plate 215 is collected to the upper one side in the ozone treatment tank 211. after, When the water level of the mixed water in the ozone treatment tank 211 rises, the sludge collected on one side of the upper portion of the ozone treatment tank 211 overflows the second bent extended portion of the second inclined plate 215. The upper portion of the ozone treatment tank 211 moves to the other side.

In particular, as the first inclined plate 214 and the second inclined plate 215 are formed to be inclined, the mixed water and sludge discharged through the first outlet 213a and the second outlet 213b are floated vertically. In this case, the floating travel distance and time are longer than that, and the sterilization action time of ozone is increased, and the purification efficiency is further improved.

In addition, the ozone treatment tank 211 of the ozone treatment unit 21 includes an ozone outlet 216 at the top to discharge ozone contained in the floating mixed water. As shown in FIG. 3, the ozone outlet outlet 216 is provided on the second bent extended end of the second inclined plate 215, and the ozone outlet treatment unit 22 is an ozone outlet outlet. It is connected to 216 to process the ozone. The ozone processing unit 22 is preferably composed of a ozone destroying device that is commonly used.

On the other hand, the sludge treatment unit 23, as shown in Figure 3, the scraping device 231 and the scraping to remove the sludge is separated from the inflow water to rise in the upper portion of the ozone treatment tank 211 and the The scraper 231 may be configured as a sludge collection tank 232 in which the scraped sludge is collected. At this time, the scraping device 231 is the ozone treatment tank in which the upper portion of the ozone treatment tank 211, in particular, the sludge is overflowed by the second bent extending portion of the second inclined plate 215 moved. It is preferable to be provided in the upper part of the other side of 211.

Specifically, the scraping device 231 is formed of a motor 231a, a first sprocket 231b axially coupled to an output shaft by the motor 231a, and a first distance formed from the first sprocket 231b. 2 sprockets 231c, belt members 231d wound around the sprockets 231b and 231c in an endless track, and are installed at predetermined intervals on the belt members 231d and interlocked by movement of the belt members 231d. It is configured to include a plurality of scrapers (231e) for removing the sludge floating on the water surface to the discharge path.

Accordingly, when the motor 231a is operated in the scraping device 231, the first sprocket 231b, the second sprocket 231c, and the belt member 231d are interlocked by the driving force of the motor. In addition, the plurality of scrapers 231e installed on the belt member 231d may lift up the sludge and discharge the sludge to the outside or may be removed by the continuous operation of discharging the sludge into the sludge collection tank 232. The belt member 231d is a belt of a conventional material. It may be configured as a chain, and an adsorbent for adsorbing sludge on the belt member 231d may be attached as a scraper.

The sludge collection tank 232 is a storage tank in which an upper portion of the sludge inflow and discharge is opened. The sludge collection tank 232 may be provided outside the ozone treatment tank 211. As illustrated in FIG. 3, the ozone treatment tank 211. ) May be provided in a space separated by the sludge partition wall 217 formed in the vertical direction. When the sludge collection tank 232 is provided in the ozone treatment tank 211, sludge floating on the upper portion of the ozone treatment tank 211 overflows the sludge bulkhead 217 as the water level rises. Or is introduced into the sludge collection tank 232 by the scraping action of the scraping device 231. The sludge collection tank 232 has a sludge discharge port 232a through which the collected sludge is discharged to the outside. Since the sludge collected in the sludge collection tank 232 has a floating characteristic, it is preferable that the sludge discharge port 232a is located above the sludge collection tank 232. In addition, as shown in FIG. 4, the sludge filter 233 is connected to the sludge discharge port 232a to filter the sludge discharged through the sludge discharge port 232a and naturally remove water from the sludge. The sludge filtration cloth 233 may be composed of a nonwoven fabric.

Meanwhile, as illustrated in FIG. 3, the multi-stage filtration unit 24 includes a plurality of filtration devices 241 and sludge-treated water through which the sludge-treated water is filtered through the sludge treatment unit 23. It is preferably configured to include a distribution pipe 242 for guiding the discharge to the filtration device 241.

Specifically, as shown in FIG. 3, each filtration device 241 is disposed in a stacked structure spaced apart from each other, and the distribution pipe 242 is treated water from which sludge is removed by the top filtration device 241. It is preferable to discharge. That is, the distribution pipe 242 is formed with an inlet 242a at the lower end of the ozone treatment tank 211 to receive the treated water from which sludge has been removed, and an outlet 242b at the top of the uppermost filtration device 241. Is formed to discharge the treated water. Accordingly, the treated water discharged through the distribution pipe 242 is subjected to the filtration process in order from the highest filtration device 241 to the lowest filtration device 241 in order to improve the filtration efficiency.

5 (a) and 5 (b) 5 is a view showing in detail the plane (Fig. 5 (a)) and one side (Fig. 5 (b)) of each configuration of the filtration device 241 according to an embodiment of the present invention.

Specifically, each filtration device 241, as shown in Figure 5, a porous plate 241a having a plurality of holes, a first activated carbon nonwoven fabric 241b provided on the porous plate 241a, the It is preferably configured to include an activated carbon layer 241c provided on the first activated carbon nonwoven fabric 241b and a second activated carbon nonwoven fabric 241d provided on the activated carbon layer 241c. The first and second activated carbon nonwoven fabrics 241b and 241d again filter sludge of large particles that may be included in the treated water, and the activated carbon layer 241c provided between the first and second activated carbon nonwoven fabrics 241b and 241d. ) Performs filtration by activated carbon. The first and second activated carbon nonwoven fabrics 241b and 241d may be formed of a nonwoven fabric that is commonly used.

In addition, the multi-stage filtration unit 24, as shown in FIG. 3, preferably further comprises a cabinet 244 having a multi-stage housing 243 of a laminated structure. In this case, each accommodating portion 243 includes an opening at a lower portion thereof, and the filtration device 241 is disposed at the accommodating portion 243, respectively. Since each filtration device 241 is disposed in the housing portion 243 of the cabinet 244, it is easy to replace the filtration device 241 which has reached the end of its life and the efficiency of maintenance is improved.

The multi-stage filtration unit 24 is preferably configured to further include a filtration tank 245 for collecting the filtration water (hereinafter referred to as "filtration water" that is filtered through the treated water) filtered by the filtration device 241. . At this time, the filtration tank 245 has a first filtration outlet 245a and a second filtration outlet 245b for discharging the collected filtration water, and the second filtration outlet 246 is more than the first filtration outlet 245a. It is preferably located at the bottom. Accordingly, the first filtration outlet 245a is connected to the reuse water tank 4 to discharge the filtered water to the reuse water tank 4, and the second filtration water outlet 245b is an inflow pipe 25 which is an inflow water passage. Is connected to the ozone treatment unit 21 to allow the filtered water to flow. That is, when the water level of the filtered water collected in the filtration tank 245 is lower than the position of the first filtration outlet 245a, the filtered water is re-introduced into the ozone treatment unit 21 through the inlet pipe 25 to repeat the circulation. Filtration process of In addition, when the water level rises to the first filtration outlet 245a in the filtration tank 245, the filtered water is discharged to the reuse water tank 4 through the first filtration outlet 245a.

As shown in FIG. 3, the inflow pipe 25 is a first inflow pipe 251, which is a passage through which the inflow water is introduced from the outside or the water collecting tank 1, and the filtered water flows from the second filtration outlet 245b. The second inlet pipe 252, which is a passage, may be configured as a third inlet pipe 253, which is a passage through which the inflow water and the filtered water flow into the ozone treatment unit 21. In addition, the inlet water control valve 251a is connected to the first inlet pipe 251, and the filtrate control valve 252a is connected to the second inlet pipe 252, respectively, to control the inflow of the influent and the filtrate. In addition, an inflow pump 26 is connected between the first and second inflow pipes 251 and 252 and the third inflow pipe 253 to power the inflow water and the filtered water to flow into the ozone treatment unit 21. Can supply

Next, the collection tank 1, the ozone system 3, and the reuse water tank 4, which are the remaining components of the wastewater treatment system according to the embodiment of the present invention, will be described.

6 is a view showing in detail one side of the water treatment system according to an embodiment of the present invention.

As shown in FIG. 6, the water collecting tank 1 is a water storage tank that collects waste water and flows it out into the multi-filtration system, and includes a partition 11 and a T-shaped tube 12 therein. The partition 11 is divided into the water collecting tank 1 into a multi-stage water storage tank, and a wall formed to vertically divide the upper and lower portions of the water collecting tank 1, and a plurality may be formed. In addition, the T-shaped tube 12 has a first tube 121 is directed to the upper portion of the water collecting tank 11, the second tube 122 is directed to the lower portion of the water collection tank, and the third tube 123 is the partition wall ( 11) is formed to pass through. The third pipe 123 is preferably installed above the partition wall (11). Accordingly, the T-shaped tube 12 serves as a baffle for collecting the pre-treatment water from which the floating and sedimented substances are removed from the wastewater introduced into the sump 1 to the last reservoir of the sump 1. do.

For example, as shown in FIG. 6, one partition 11 is formed so that the sump 1 is divided into a first sump 13 and a second sump 14. The case where the wastewater is full in the first water collecting tank 13 will be described. In this case, the wastewater introduced into the first collecting tank 3 is discharged to the second collecting tank 14 only through the third pipe 123 of the T-shaped tube 12. At this time, the sedimentation material of the introduced waste water is settled in the lower portion of the first collection tank 13, the floating material rises above the first pipe 121 of the T-shaped tube 12, accordingly the precipitated material and suspended matter Is not collected in the second sump 14 without other power or device. As the partition 11 and the T-tube 12 increase, the removal efficiency of sedimentation and suspended solids contained in the introduced wastewater is improved.

In addition, a wastewater inlet 131 is provided at an upper end of the water collecting tank 1 at the foremost storage tank (corresponding to the first water collecting tank 13 in FIG. 6), and the wastewater is introduced therein, 2 corresponding to the sump 14, the sump discharge port 141 is provided in the lower portion is the waste water collected is discharged to the multi-filtration system (2). As the sump discharge port 141 is provided at the bottom of the last reservoir, the water is discharged into the last reservoir Suspended matter is not discharged through the water collecting outlet 141.

As shown in FIG. 6, the ozone system 3 controls ozone generation of the ozone generator 31 that generates ozone, the oxygen generator 32 that generates oxygen, and the ozone generator 31. The control unit 33 is included. The ozone generator 31 is connected to the oxygen generator 32 to receive oxygen generated by the oxygen generator 32 and generate ozone using the supplied oxygen, thereby directly generating ozone. Durability and stability are improved compared to the generating device. Ozone generated by the ozone generator 31 is supplied to the multiple filtration system 2 through the ozone supply pipe 34.

The reuse water tank 4 is a water tank for storing the filtered water discharged from the multiple filtration system 2, as shown in FIG. 6, the filtered water inlet 41 provided to introduce the filtered water, and the filtered water stored for reuse. Recycling outlet 42 provided at the upper end to discharge, and cleaning outlet 43 provided at the bottom to discharge the water when cleaning. In addition, between the multi-filtration system 2 and the filtrate inlet 41 is connected to the filtrate moving pipe 44 which is a filtrate moving passage.

Hereinafter, a process of purifying wastewater using the wastewater treatment apparatus according to the present invention will be described.

First, waste water flows into the first collecting tank 13 of the collecting tank 1 through the waste water inlet 131. Sedimentation material of the waste water in the first collection tank 13 is settled on the bottom, and as the level of the waste water rises, it is introduced into the second collection tank 14 through the third pipe 123 of the T-shaped pipe (12). Most of the suspended solids of the waste water are moved from the second tube 122 of the T-tube 12 to the first tube 121, but may also flow into the second collection tank 14 through the third tube 123. However, since the collecting outlet 141 of the second collecting tank 14 is provided at the lower portion, the amount of suspended solids discharged from the second collecting tank 14 to the multiple filtration system 2 is extremely small.

Next, the inflow water firstly treated to remove sediment and suspended matter in the sump (1) is passed through the third inlet pipe (253) by the power of the inlet pump (26), more specifically, Flows into the line mixer tube 213 of the ozone treatment unit 21.

On the other hand, in the ozone system 3, ozone is generated in the ozone generator 31 by using oxygen generated in the oxygen generator 32. The amount of ozone generation is controlled by the control unit 33, the generated ozone is introduced into the diffuser 212 of the multiple filtration system 2, more specifically, the ozone treatment unit 21 via the ozone supply pipe (34). Using the introduced ozone, the diffuser 212 generates ozone bubbles, and the generated ozone bubbles flow into the line mixer tube 213.

As the inflow water and the ozone bubbles introduced into the line mixer tube 213 are mixed in the line mixer tube 213, mixed water and flotation sludge are formed together with the sterilization action of ozone. The formed mixed water and the floated sludge are discharged into the ozone treatment tank 211 through the first outlet 213a and the second outlet 213b of the line mixer tube 213. Subsequently, the discharged ozone bubble and the floated sludge are slowly guided by the first inclined plate 214 and the second inclined plate 215, and move upwards in the ozone treatment tank 211, and continue to be moved by the ozone bubble even when moving. Sterilization takes place.

On the other hand, ozone bubbles in the mixed water is discharged through the ozone outlet 216 is finally processed by the ozone treatment unit 22. In addition, the sludge floating in the ozone treatment tank 211 is scraped by the scraper 231 or collected into the sludge collection tank 232 by overflowing from the ozone treatment tank 211. The sludge collected in the sludge collection tank 232 is discharged to the outside through the sludge discharge port 232a and finally processed through the sludge filtration cloth 233.

In addition, the sludge-removed treated water flows into the distribution pipe inlet 242a formed at the lower portion of the ozone treatment tank 211 and is disposed on the uppermost filtration device 241 of the multi-stage filter part 24 through the distribution pipe outlet 242b. Is discharged to. Since a plurality of filtering devices 241 are stacked on each other, the treated water is filtered in order from the uppermost filtering device 241 to the lowermost filtering device 241. The large particles contained in the treated water are filtered by the first and second activated carbon nonwoven fabrics 241b and 241d of each filter device 241, and the remainder is filtered through the activated carbon layer 241c.

The filtered water which has undergone the multi-stage filtration process is collected in the filtration tank 245 and discharged to the reuse water tank 4 through the first filtration outlet 245a, or the second inlet pipe 252 through the second filtration outlet 245b. It is supplied back to the line mixer tube 213 to circulate the above process. At this time, the amount of filtered water supplied to the line mixer tube 213 through the filtered water control valve 252a is adjusted, and thus the filtration efficiency may be adjusted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand the point. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

1: water tank 11: bulkhead
12: T's 121: Hall 1
122: Hall 2 123: Hall 3
13: 1st collection tank 131: wastewater inlet
14: 2nd collection tank 141: collection outlet
2: multiple filtration system 21: ozone treatment unit
211: ozone treatment tank 212: diffuser
213: line mixer building 213a: first outlet
213b: second outlet 214: first inclined plate
215: second inclination plate 216: Baozone outlet
217 sludge bulkhead 22 Ozone treatment unit
23: sludge treatment unit 231: scraping device
231a: motor 231b: first sprocket
231c: second sprocket 231d: belt member
231e: scraper 232: sludge collection tank
232a: sludge outlet 233: sludge filter cloth
24: multi-stage filtration unit 241: filtration device
241a: perforated plate 241b: first activated carbon nonwoven fabric
241c: activated carbon layer 241d: second activated carbon nonwoven fabric
242: distribution pipe 242a: distribution pipe inlet
242b: distribution pipe outlet 243: storage
244 cabinet 245 filtration tank
245a: first filtration outlet 245b: second filtration outlet
25: inlet pipe 251: first inlet pipe
251a: inlet water control valve 252: second inlet pipe
252a: Filtrate control valve 253: Third inlet pipe
26: inflow pump 3: ozone system
31: ozone generator 32: oxygen generator
33: control unit 34: ozone supply pipe
4: reused water tank 41: filtered water inlet
42: reuse outlet 43: cleaning outlet
44: filtered water transfer pipe

Claims (16)

An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water; And
Including an ozone system for supplying ozone to the ozone treatment unit,
The ozone treatment unit,
Ozone treatment tank;
A diffuser that receives ozone from the ozone system and blows out ozone bubbles;
A line mixer tube connected to the diffuser and discharging the mixed water and the sludge to the ozone treatment tank by mixing ozone bubbles and inflow water;
A first inclined plate inclined in the ozone treatment tank; And
It is configured to include a second inclined plate formed to be spaced parallel to the first inclined plate,
The line mixer tube,
A first outlet disposed under the first inclined plate such that ozone bubbles and sludge of the mixed water discharged are guided along the lower portion of the first inclined plate; And
And a second outlet located between the first inclined plate and the second inclined plate such that ozone bubbles and sludge of the mixed water discharged are guided between the first inclined plate and the second inclined plate. delete delete delete The method of claim 1,
The second slope plate,
Upper and lower ends are formed longer than the first inclined plate,
The upper end of the second inclined plate to cover the upper end of the first inclined plate Waste water treatment system, characterized in that formed to be extended to one side of the ozone treatment tank. An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water; And
Including an ozone system for supplying ozone to the ozone treatment unit,
The multi-stage filtration unit,
A plurality of filtration devices for filtering the treated water;
A distribution pipe for guiding discharge of the sludge-treated water to a filtration device; And
It is configured to include a cabinet having a multi-stage storage portion of a laminated structure,
Each receiving portion is configured to include an opening in the lower portion,
Wastewater treatment system, characterized in that the filtration device is disposed in the receiving portion. The method according to claim 6,
Each filtration device is arranged in a laminated structure spaced apart from each other,
The distribution pipe is a wastewater treatment system, characterized in that for discharging the treated water to the top filter. An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water; And
Including an ozone system for supplying ozone to the ozone treatment unit,
The multi-stage filtration unit,
A plurality of filtration devices for filtering the treated water; And
And a distribution pipe for guiding discharge of the sludge-treated water to the filtration device.
Each filtration device,
Porous plate;
A first activated carbon nonwoven fabric formed on the porous plate;
An activated carbon layer formed on the first activated carbon nonwoven fabric; And
Waste water treatment system comprising a second activated carbon nonwoven fabric formed on the activated carbon layer. delete An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water; And
Including an ozone system for supplying ozone to the ozone treatment unit,
The multi-stage filtration unit,
A plurality of filtration devices for filtering the treated water;
A distribution pipe for guiding discharge of the sludge-treated water to a filtration device; And
And a second filtration outlet disposed below the first filtration outlet and the first filtration outlet, and comprising a filtration tank for collecting the filtered water filtered by the filtration device. The method of claim 10,
The multiple filtration system further includes an inlet pipe which is an influent movement passage,
The inlet pipe is connected to the second filtration water outlet so that the filtered water flows into the ozone treatment unit. An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water; And
Including an ozone system for supplying ozone to the ozone treatment unit,
The sludge treatment unit,
A scraper for scraping the sludge; And
And a sludge collection tank in which the sludge scraped from the scraping device is collected.
The scraping device,
motor;
A first sprocket axially coupled to the output shaft of the motor;
A second sprocket formed spaced apart from the first sprocket;
A belt member wound around the first and second sprockets in an endless track;
And a plurality of scrapers installed on the belt member to interlock the sludge by the movement of the belt member. delete An ozone treatment unit to float sludge by ozone treatment of influent;
An ozone treatment unit for treating the ozone discharged from the ozone treatment unit;
A sludge treatment unit for treating the sludge;
A multi-filtration system having a multi-stage filtration unit for multi-stage filtering the sludge treated water;
An ozone system for supplying ozone to the ozone treatment unit; And
Collecting waste water, including a sump to drain to the multi-filtration system,
The sump tank,
A partition wall divided into a first collection tank receiving waste water and a second collection tank discharging the collected waste water;
The first pipe is directed to the upper portion of the first collection tank, the second pipe is directed to the lower portion of the first collection tank, and the third pipe includes a T-shaped pipe connected to the second collection water so as to pass through the partition wall. system. 15. The method of claim 14,
The second sump tank is a waste water treatment system, characterized in that provided with a drain outlet. The method of claim 1,
The ozone system,
An oxygen generator for generating oxygen;
Waste water treatment system comprising an ozone generator for generating ozone by using the oxygen generated in the oxygen generator.

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