KR20010035262A - Waste water disposal plant having sheet filter in FRP - Google Patents

Abstract

PURPOSE: Disclosed is a fiberglass reinforced tank (FRP, 15) for treating continuously wastewater/sewage on the inside of one tank consisting of an anaerobic tank(15), two flow equalization tanks(17,18), plural aeration tanks (89) packed with microbial media(33), and a liquid/solid separation tank(57). In particular, a culture medium(50) is submerged in aeration tanks for inoculating activated microorganisms, replacing dead aerobic-bacteria. CONSTITUTION: The fiberglass reinforced tank is characterized in that a culture medium packed with waste oyster shell is submerged in aeration tanks for supplementing dead aerobic bacteria and treated wastewater is filtrated by a membrane before discharging.

Description

FRP PW Wastewater Treatment System {Waste water disposal plant having sheet filter in FRP}

The present invention relates to a wastewater purification treatment apparatus, and more particularly, to be configured to perform all the purification in one reinforced plastic container, in particular aerobic microorganisms during the purification process by applying an aerobic microorganism incubator in the contact aeration chamber. The present invention relates to a FRP flat membrane wastewater purification treatment device that is continuously generated and configured to have a high purification efficiency.

As urban concentration of the population and the development of various industries, living sewage and factory wastewater discharged from homes and factories are increasing. Since the amount of such wastewater increased sometime beyond the limit of natural purification, a purification facility for artificially purifying the wastewater was proposed. Waste water means dirty water and mixed water or waste, and the waste water purification treatment device is to remove the dirt or waste from the water.

The kind of wastewater purification treatment apparatus has been developed in various ways. Most wastewater treatment systems generally accept wastewater and settle the heavy contaminants once, add microorganisms to light organic matter which has not yet settled, but decompose and remove the organic matter, and the treated water Is physically filtered through a filter, and finally chemically chlorinated.

However, most conventional wastewater purification treatment devices have a limited space for installation because each device is required for each treatment step and the overall size of the device increases, and in particular, the life of aerobic microorganisms used for biological treatment is limited. There is a problem that the biological treatment effect is gradually reduced as the operating time of the.

The present invention has been made to solve the above problems, by providing an anaerobic tank, a flow adjustment tank, a contact aeration tank, a solid-liquid separation tank, and a treatment water tank in a container made of reinforced plastics, the device is compact, so that the required processing capacity is not complicated. It is good to install and use in this small place. In particular, the contact aeration tank is divided into at least two contact aeration chambers so that the aeration is carried out in multiple stages, and the aerobic microbial culture chamber is separately applied to the contact aeration chamber so that the aerobic microorganisms are always active in the contact aeration tank. Its purpose is to provide an FRP flat membrane wastewater purification treatment system configured to have a high biological treatment effect.

1 is a view for explaining the overall configuration of the FRP flat membrane wastewater purification treatment apparatus according to an embodiment of the present invention.

2 is a view showing an aerobic microorganism incubator applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

Figure 3 is a perspective view showing a portion of the solid-liquid separator applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

Figure 4 is a partial perspective view showing another example of the solid-liquid separator that can be applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

Figure 5 is a perspective view showing a flat membrane filter mounted to the solid-liquid separator.

6 is a view showing the aerobic microbial incubator installed on the outside in the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

Figure 7 is a schematic view of the aerobic microbial culture of Figure 6;

<Explanation of symbols for main parts of drawing>

13: Inlet 15: Anaerobic composition

17, 18: flow adjustment tank 19: sludge

21: T (T) magnet 25: Reinforced plastic container

27, 39, 40, 41, 47: Pump 31: Breaking plate

33: Media 35: Return pipe

37: acid engine 43: solid-liquid separation part

45: sedimentation part 49: the first contact aeration chamber

50, 83: aerobic microorganism incubator 51: second contact aeration chamber

53: third contact aeration chamber 55: fourth contact aeration chamber

57: solid-liquid separation tank 59: treatment water tank

61: air pipe 63: case

65: A hole 67: Oyster shell

69: support frame 71: membrane filter

73: branch pipe 75: suction pipe

77: communication port 79: flat

81: outlet 85: container

89: contact aeration tank 91: square frame

93: Between space 95: Entrance

97: exit

In order to achieve the above object, the present invention is to accept the waste water flowing in from the outside to precipitate the pollutant and to decompose organic matter by the anaerobic microorganism and the anaerobic tank is connected to the anaerobic tank to receive the water except the sediment from the anaerobic tank Is a flow control tank and an aerobic microorganism treatment by receiving water from the flow control tank. An internal filter is installed inside the diffuser and an oxygen pipe is provided to receive oxygen from the outside to supply oxygen to the inside. A contact aeration tank is further provided, and the water in the aerobic microorganism treatment state is carried out from the contact aeration tank, and a solid-liquid separation unit for filtering the contaminants remaining in the water inside, and is provided below the solid-liquid separation unit from the outside The diffuser is provided to receive air and supply oxygen to the inside, A solid-liquid separation tank having a sedimentation unit for receiving and depositing the dregs caught by the solid-liquid separation unit, and a treatment tank equipped with an acid pipe for temporarily storing water filtered through the solid-liquid separation tank and supplying oxygen to the lower part. In the wastewater purification treatment apparatus comprising a, the anaerobic tank, the flow adjustment tank, the contact aeration tank, the solid-liquid separation tank and the treatment water tank is provided in a state partitioned with respect to each other in one container made of reinforced plastic, the contact The aeration tank consists of a contact aeration chamber divided into at least two or more water is sequentially moved to the contact aeration chamber is carried out in a multi-step, one or more of the contact aeration chamber is applied aerobic microorganism incubator It is characterized by.

In addition, the aerobic microorganism incubator is to be installed submerged in the contact aeration chamber, a plurality of holes are formed and one or more cases to provide an interior space, the culture material accommodated in each case and the aerobic microorganisms grow on the surface Characterized in that it comprises a.

In addition, the aerobic microorganism incubator is installed on the outside of the contact aeration chamber, the pipe is connected to the inside of the contact aeration chamber, the vessel through which the water in the contact aeration chamber circulates through the pump, and installed in the container submerged in water It is characterized in that it comprises one or more cases in which a hole is formed and provides an inner space, and a culture material in which aerobic microorganisms are grown on the surface to be accommodated in each case.

In addition, the culture agent is characterized in that it comprises a shellfish shell or oyster shell.

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

1 is a view showing the overall configuration of the FRP flat membrane wastewater purification treatment apparatus according to an embodiment of the present invention.

Referring to the drawings, the FRP flat membrane wastewater purification apparatus according to the present embodiment, the anaerobic tank 15, the flow control tank (17, 18) and the contact aeration tank (13) which are mutually blocked and sequentially provided in the reinforced plastic container 25 ( 89, the solid-liquid separation tank 57, and the processing water tank 59 are comprised.

One side of the reinforcement plastic container 25 is provided with an inlet 13 through which waste water flows, and an outlet 81 through which the purified water is discharged is provided on the other side. In addition, the reinforced plastic container can be made of conventional fiberglass reinforced plastic (FRP).

The anaerobic tank 15 is a space in which wastewater introduced from the outside temporarily stays and is blocked from the outside like a known anaerobic tank, and an anaerobic microorganism is active to decompose contaminants in wastewater. In addition, the first introduced waste water is mixed with a material having a specific gravity larger than that of water, and this heavy material is settled on the bottom as sludge (19).

On the side of the anaerobic tank 15, the anaerobic tank 15 and the flow rate adjusting tanks 17 and 18 blocked by the blocking plate 31 are sequentially located. The blocking plate 31 is provided with a known T-shaped tube 21, and when the wastewater in the anaerobic tank 15 reaches a certain level, water in which the precipitate is removed flows into the flow regulating tank 17.

The flow rate adjusting tanks 17 and 18 are for treating waste water by the desired amount, and adjust the flow rate to the aeration tank 89 to be described later. In this embodiment, the flow regulating tank is divided into a blocking plate 31 to make two flow regulating tanks 17 and 18. By dividing the flow regulating tank into two in this way, the water level of the water waiting in the flow regulating tanks 17 and 18 can be maintained higher.

The reason for maintaining the water level in the flow regulating tank 17 and 18 higher in this way is as follows. That is, even if the heavy contaminated material is passed through the anaerobic tank 15 is not completely precipitated, the sedimentable material may be mixed in the water introduced into the flow adjusting tank (17, 18). On the other hand, as will be described later, the water in the flow adjusting tank 18 passes to the aeration tank 89 through the submersible pump 27, and a small amount of sediment generated inside the flow adjusting tanks 17 and 18 is caused by the pump. It is better to set the position of the pump 27 higher so as not to go to (89). Therefore, it is better to install the pump 27 higher by making the water level in the flow regulating tank 17 and 18 higher.

The contact aeration tank 89 located at the side of the flow regulating tank 18 is divided into four places by the blocking plate 31 as a space for microbial treatment of water that has passed through the pump 27, and each of the T-shaped pipes 21. Connected by means of maintaining the same water level.

The contact aeration tank 89 is divided into a first contact aeration chamber 49, a second contact aeration chamber 51, a third contact aeration chamber 53 and a fourth contact aeration chamber 55, and each contact aeration chamber 55. In (49, 51, 53, 55), a well-known medium 33 is provided. Moreover, the diffuser 37 is provided in the lower part of each filter medium 33.

The filter medium 33 is a place where aerobic microorganisms adhere to the surface, and its types are very diverse. In addition, as known, the aerobic microorganism is attached to the filter medium (33), while waiting for water to move inside and decompose the organic matter mixed in the water while passing through the filter medium.

The diffuser 37 installed horizontally on the lower side of the filter medium 33 is an air pipe that supplies oxygen to the aerobic microorganisms and blows out air to condense water, and a plurality of holes (not shown) are formed on the outer circumference thereof. It is. The diffuser 37 is connected to the pump 39, and the pump 39 presses external air into the diffuser 37 to introduce oxygen into the contact aeration tank 89 through each hole of the diffuser 37. Supplies to survive aerobic microorganisms to keep aerobic microorganisms active.

In this embodiment, the diffuser 37 is further extended horizontally to extend into the solid-liquid separation tank 57 and the treatment water tank 59 to supply oxygen to the solid-liquid separation tank 57 and the treatment water tank 59.

Meanwhile, as described above, the contact aeration tank 89 is partitioned into first, second, third and fourth contact aeration chambers 49, 51, 53, and 55, and water is microbially treated in the first contact aeration chamber 49. After that, the microorganisms are sequentially processed while moving to the second, third and fourth contact aeration chambers.

Inside the second contact aeration chamber 51, an aerobic microorganism incubator 50 is installed along with the filter medium 33. The aerobic microorganism incubator 50 has a structure of FIG. 2 as a place for producing aerobic microorganisms.

In fact, the aerobic microorganisms attached to the media 33 have a finite lifetime, and as time passes, the number of aerobic microorganisms decreases, thereby degrading the purification function. Therefore, in order for aerobic microorganisms to continue to flourish in the aeration tank, it is necessary to produce as many new aerobic microorganisms as the aerobic microorganisms that have reached their end of life.

To this end, the aerobic microorganism incubator 50 is to be installed. The aerobic microorganism incubator 50 is installed to be submerged in water to always in contact with the water and to interact with the water.

On the side of the fourth contact aeration chamber 55, a solid-liquid separation tank 57 separating solid and liquid is located. The solid-liquid separation tank 57 is a solid-liquid separator 43, which is a filter for filtering impurities mixed in the microorganism-treated water, and a precipitation part 45 provided at the lower part of the solid-liquid separator 43 and the One diffuser 37 is provided.

The solid-liquid separator 43 is connected to the pump 41 as a filter configured by separating a plurality of flat membrane filters 71 at regular intervals as shown in FIG. 3 or 4. The pump 41 is connected to the communication port (77 of Fig. 5) of each flat membrane filter 71, respectively, and physically separates the contaminated material from the water contained in the solid-liquid separation tank 57 by extracting water to the outside.

The settling part 45 installed in the lower part of the solid-liquid separator 43 is a place that receives the debris that is filtered by the solid-liquid separator 43 and settles downward. This is known, and the upper portion of the settling portion 45, the connection portion of the air pipe 61 and the return pipe 35 is located.

The air pipe 61 and the return pipe 35 serves to transfer the precipitate deposited in the settling portion 45 to the anaerobic tank 15 at the flow pressure of air, and the return pipe 35 to the anaerobic tank 15. Connected.

Therefore, when the air is pressurized through the air pipe 61, the air flows in the direction of arrow a. At this time, the debris precipitated in the settling portion 45 by the flow pressure of the air comes up to the upper portion and passes through the return pipe 35. Will go to anaerobic maturity (15).

On the other hand, the air bubbles generated from the diffuser 37 located in the lower portion of the solid-liquid separator 43, the residue remaining on the surface of the flat membrane filter 71 in addition to the basic function of supplying oxygen in the solid-liquid separation tank 57 It serves as a function of leaving the flat membrane 79 so that the filtering effect is not reduced.

The water separated from the residue by passing through the solid-liquid separator 43 by the pump 41 moves to the treatment water tank 59 to be collected and discharged to the outside through the outlet 81 by the pump 47.

Figure 2 is a view showing an aerobic microorganism incubator applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

As shown, the aerobic microorganism incubator 50 includes a cylindrical case 63 in which a plurality of holes 65 are formed, and an oyster shell 67 filled in the case 63. The plurality of holes 65 are holes provided so that the water in the aeration tank 89 contacts the oyster shell 67 in the case 63.

The oyster shell 67 filled in the case 63 is a place where aerobic microorganisms are cultured on the surface thereof. Since the surface of the oyster shell 67 provides an environment suitable for the growth conditions of the aerobic microorganisms, the aerobic microorganisms actively proliferate inside the case 63.

Since the aerobic microorganisms proliferate inside the case 63 as described above, a large amount of aerobic microorganisms are separated from the aerobic microorganism incubator 50 immersed in water to decompose the organic matter in the water.

According to the embodiment, other shells may be used in addition to the oyster shell.

3 is a perspective view schematically showing an example of a solid-liquid separator applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

Referring to the drawings, the solid-liquid separator 43 includes a plurality of flat membrane filters 71 spaced apart from each other, a support frame 69 supporting both edge portions of the flat membrane filter 71, and the flat membrane filters. It is configured to include a suction pipe 75 connected to the upper portion of the 71 to extract water through the flat membrane filter (71). The suction pipe 75 is connected to the pump 41 of FIG.

The flat membrane filter 71 is a known sheet-like flat plate filter, and has a flat plate shape as shown in FIG. 5, and a communication port (77 in FIG. 5) is provided at an upper side thereof. The branch pipe 73 is fitted into each communication port 77 and each branch pipe 73 is connected to the suction pipe 75. Therefore, when the air is drawn out through the suction pipe 75, the water around the flat membrane filter 71 passes through the flat membrane (79 of FIG. 5) and is drawn out through the communication port 77 and the branch pipe 73.

Figure 4 is a partial perspective view showing another example of the solid-liquid separator that can be applied to the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

The same reference numerals as those in FIG. 3 indicate the same members having the same function.

Referring to the drawings, it can be seen that two communication ports 77 are provided at the upper portion of each flat membrane filter 71 and branch pipes 73 are connected to each communication port 77. Each branch pipe 73 is connected to the suction pipe 75 of the 'c' shape to extract the air through the suction pipe 75, the water around the flat membrane filter 71 is separated from the residue and flat membrane (Fig. 5 Through 79) and pulled out.

5 is a perspective view showing a flat membrane filter mounted on the solid-liquid separator.

As shown, the flat membrane filter 71 includes a hollow rectangular frame 91 and two flat membranes supported by the rectangular frame 91 and spaced apart by the thickness of the rectangular frame 91 and having an interspace 93 therebetween. It comprises 79. The flat membrane 79 has a structure of a fine mesh to filter out the debris in the water and to pass the water.

In addition, the communication port 77 provided in the upper portion of the rectangular frame 91 is in communication with the interspace (93). Therefore, when the air escapes through the communication port 77, the water around the flat membrane 79 passes through the flat membrane 79 and seeps into the interspace 93 and exits through the communication port 77 to the outside.

FIG. 6 is a view illustrating an aerobic microorganism incubator installed in the FRP flat membrane wastewater purification apparatus according to an embodiment of the present invention.

The same reference numerals as the above reference numerals denote the same members having the same function.

Referring to the drawings, it can be seen that the aerobic microorganism incubator 83 is installed outside the second contact aeration chamber 51. The aerobic microorganism incubator 83 functions to multiply aerobic microorganisms therein and to supply the multiplied microorganisms to the second contact aeration chamber 51. As described above, the microorganisms attached to the filter medium become less dense and end of life as time goes by. The aerobic microorganism incubator 83 is separately installed to continuously supply aerobic microorganisms in the contact aeration tank. Performance can be greatly improved.

As shown in FIG. 7, the aerobic microorganism incubator 83 includes a container 85 provided with inlets and outlets 95 and 97, and a case 63 installed in the container 85. Of course, the case 63 includes an oyster shell (not shown) as shown in FIG. 2.

The inlet 95 and the outlet 97 of the aerobic microorganism incubator 83 are connected to the second contact aeration chamber 51 through a pipe. Therefore, when the pump 40 is operated, the water in the second contact aeration chamber 51 flows into the container 85 through the inlet (95 in FIG. 7), and then exits to the outlet 97 and the second contact aeration chamber 51. (51) Go back inside.

By separating the aerobic microorganism incubator 83 from the second contact aeration chamber 51 in this manner, the aerobic microorganisms remaining in culture in the aerobic microorganism incubator 83 are not directly used for purification of water once.

In addition, as described above, the water sequentially moves through the first, second, third and fourth contact aeration chambers 49, 51, 53, and 55, and as described above, the aerobic microorganism incubator 83 is spaced apart from the flow of water. Therefore, the aerobic microorganisms propagated in the aerobic microorganism incubator 83 can proliferate without being disturbed in the case 63.

The aerobic microorganism incubator 83 is always filled with water, and the oyster shell in the case 63 is submerged in water. As described above, since the oyster shell is submerged in water, as described above, the oyster shell is not exposed to the flow of water in the second contact aeration chamber 51, so that the aerobic microorganisms inside the aerobic microorganism incubator 83 can always maintain abundant growth.

7 is a view schematically showing the aerobic microorganism incubator of FIG.

Referring to the drawings, the aerobic microorganism incubator 83 provides a sealed space, a container 85 having an inlet 95 at a side thereof and an outlet 97 at a lower side thereof, and an inside of the container 85. It comprises a plurality of cases 63 are provided. The case 63 is a cylindrical case in which a plurality of holes (65 in FIG. 2) are formed as shown in FIG. 2, and the oyster shell is accommodated therein.

In addition, as described above, the inlet 95 is piped into the second contact aeration chamber 51 through a pump (40 in FIG. 6), and the outlet 97 is also communicated in the second contact aeration chamber 51. . The inlet-side pipe is immersed in water in the second contact aeration chamber 51 to allow water to move into the container 85 by the operation of the pump 40.

Operation of the FRP flat membrane wastewater purification apparatus according to the present embodiment made as described above is made as follows.

First, waste water flowing from the outside is temporarily stored in the anaerobic tank 15 and heavy residues are settled downward. At this time, anaerobic microorganisms decompose organic matter in contaminants.

Water in a state in which the relatively heavy residues are precipitated in the anaerobic tank 15 is moved to the flow adjusting tanks 17 and 18, leaving the sediment residues, and then moved to the contact aeration tank 89 by the pump 27 to aeration. By aerobic microbial treatment. At this time, air bubbles move upward through the diffuser 37 installed in the lower portion of each contact aeration chamber 49, 51, 53, 55, supply oxygen to aerobic microorganisms, and convection water to contact water and aerobic microorganisms. Leads to more actively.

Water passing through the contact aeration tank 89 flows into the solid-liquid separation tank 57. Even though it passes through the contact aeration tank (89), since the inorganic dirt mixed in the water remains, in order to remove it, the water is passed through the flat membrane (79) of the solid-liquid separator (43) by operating the pump (41).

When the pump 41 is operated to filter the water through the solid-liquid separator 43, the residue remaining in the water does not pass through the flat membrane 79, and the water passes through the flat membrane 79 to pass the pump 41. It moves to the treatment tank 59. Filtered waste as described above is collected in the settling portion 45 is sent to the anaerobic tank.

On the other hand, the water collected in the treatment tank 59 may be discharged as it is in a cleanly purified state, or may be discharged after chemical treatment such as chlorine disinfection according to the embodiment.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

The FRP flat membrane wastewater purification treatment apparatus of the present invention as described above has an anaerobic tank, a flow regulating tank, a contact aeration tank, a solid-liquid separation tank, and a treatment water tank in one container made of reinforced plastic, so that the apparatus is compact and not complicated. It is good to install in the place where required processing capacity is not big. In particular, the contact aeration tank is divided into at least two contact aeration chambers so that the aeration is carried out in multiple stages, and the aerobic microorganism culture chamber is separately applied to the contact aeration chambers so that the aerobic microorganisms are always active in the contact aeration tanks, so that the biological treatment effect is high.

Claims (5)

An anaerobic tank that receives wastewater from the outside to allow sediment to precipitate and an organic anaerobic microorganism to decompose organic matters; a flow regulating tank connected to the anaerobic tank to receive water excluding sediment from the anaerobic tank; and water from the flow regulating tank. And aerobic microorganism treatment, in which a filter medium is provided inside, and a lower portion of the filter medium further includes an air diffuser which receives air from the outside and supplies oxygen to the inside, and the contact It receives water in the aerobic microbial treatment state from the aeration tank, and the solid-liquid separation unit for filtering the dirty material remaining in the water, and the lower liquid-liquid separation unit is provided in the lower side to receive the air from the outside to supply oxygen to the inside The diffuser is provided, and the debris caught by the solid-liquid separator In the waste water purification treatment apparatus comprising a solid-liquid separation tank having a precipitation section for receiving and settling, and a treatment tank having a storage unit for temporarily storing the filtered water through the solid-liquid separation tank and supplying oxygen to the lower part. The anaerobic tank, the flow rate adjusting tank, the contact aeration tank, the solid-liquid separation tank and the treated water tank are provided in one container made of reinforced plastic with respect to each other, and the contact aeration tank is divided into at least two contacts. Consisting of the aeration chamber, the water is sequentially moved to the contact aeration chamber, the aeration is carried out in multiple stages, FRP flat membrane wastewater purification treatment apparatus characterized in that the aerobic microorganism incubator is applied to any one or more of the contact aeration chambers . The method of claim 1, The aerobic microorganism incubator is to be installed in the contact aeration chamber submerged in water, a plurality of holes are formed and includes at least one case and provide a space, the culture material accommodated in each case and the aerobic microorganisms grow on the surface FRP flat membrane wastewater purification treatment device, characterized in that. The method of claim 1, The aerobic microorganism incubator is installed on the outside of the contact aeration chamber, the pipe connected to the inside of the contact aeration chamber circulates and passes through the water in the contact aeration chamber by a pump, a plurality of holes to be installed submerged in the water in the container And at least one case formed therein and providing an inner space, and a culture material in which aerobic microorganisms are grown on the surface of the at least one case. The method of claim 2 or 3, The culture agent FRP flat membrane wastewater purification treatment device, characterized in that it comprises a shell shell. The method of claim 4, wherein The culture agent FRP flat membrane wastewater purification treatment device, characterized in that the oyster shell.