KR101168082B1 - BBM-System : Advanced wastewater treatment by Bamboo Bioreactor Membrane system - Google Patents

Abstract

The sewage and wastewater treatment apparatus using the bamboo biofiltration membrane according to the present invention is an anaerobic tank for removing phosphorus in the sewage and wastewater introduced by the sewage and wastewater inflow pipe, and is connected to the anaerobic tank and treated in an anaerobic tank. The first anoxic tank in which the water is denitrified, the first tank which is connected to the first anoxic tank and the treated water treated in the first anoxic tank by microorganisms, and the treated water which is connected to the first unit and the first treated tank is denitrified. The second anoxic tank, which is connected to the second anoxic tank, which is treated with microorganisms, and the second tank which treats the treated water by the microorganism, and the second tank is connected to the second tank, and the treated water is treated as supernatant and sludge. A sedimentation tank for separating, a plurality of installed in the first and second tanks, a plurality of bamboo members extending in the longitudinal direction and bamboo, A bamboo biofiltration membrane having a fixing member for supporting both ends of the ashes to be joined to each other to provide a microbial contact surface, an air supply for supplying air to the first and second tanks, and the supernatant separated from the settling tank And a sludge discharge pipe for discharging the sludge separated from the settling tank.
Advanced sewage and wastewater treatment apparatus using the bamboo biofiltration membrane according to the present invention has the advantage that the adhesion efficiency of the microorganism is increased by using a bamboo member having a large specific surface area.

Description

Advanced Wastewater Treatment System using Bamboo Biofiltration Membrane {BBM-System: Advanced wastewater treatment by Bamboo Bioreactor Membrane system}

The present invention relates to an advanced treatment system for sewage and wastewater using bamboo biofiltration membranes, which are environmentally-friendly materials, and more specifically, to improve nitrogen and phosphorus removal efficiency by using bamboo biofiltration membranes having a wide contact area to enhance microbial activity. It relates to a wastewater advanced treatment device.

In general, biological treatment techniques using microorganisms are widely used in the treatment of domestic wastewater and wastewater discharged from various industrial sites, and advanced treatment techniques for removing nitrogen and phosphorus, which are eutrophic substances, are required.

Advanced treatment is a method of decomposing organic matter in sewage and wastewater by installing a biofiltration membrane where microorganisms can live in the treatment tank. Biofiltration membranes have different treatment efficiencies for microorganisms to decompose organic materials depending on the size of the biofiltration membrane, the characteristics of the material, and the structure of the biofiltration membrane.

Conventionally, various types of contact biofiltration membranes (plastics, zeolites, etc.) are used, but they are expensive in terms of installation and replacement, and there is a difficulty in attaching microorganisms, and the specific surface area of the microorganisms is relatively low. There was this.

The present invention is to solve the problems as described above by using a bamboo biofiltration membrane, which is an eco-friendly material with a large specific surface area to increase the microbial adhesion efficiency, the sewage and wastewater using the bamboo biofiltration membrane improved efficiency of sewage and wastewater treatment In providing a processing apparatus.

The advanced sewage and wastewater treatment apparatus using a bamboo biofiltration membrane to achieve the above object is an anaerobic tank for removing phosphorus in the sewage and wastewater introduced by the sewage and wastewater inflow pipes, and is connected to the anaerobic tank and A first anoxic tank to which the treated water treated in the anaerobic tank is denitrified, a first aerobic tank connected to the first anoxic tank and treating the treated water treated in the first anoxic tank by a microorganism, and a first aerobic tank connected to the first aerobic tank A second anoxic tank in which the treated water treated in the first aerobic tank is denitrified, a second aerobic tank connected to the second anoxic tank and treating the treated water treated in the second anoxic tank by a microorganism, and connected to the second aerobic tank A settling tank for separating the treated water treated in the second tank into a supernatant and sludge, and the first and second tanks. A bamboo biofiltration membrane having a plurality of bamboo members installed in a lengthwise direction and having a fixed member for supporting both ends of the bamboo members, the bamboo members being coupled to each other to provide a microbial contact surface; It is provided with an air supply unit for supplying air to the exhalation tank and the second unit, a supernatant water discharge pipe for discharging the supernatant water separated from the settling tank, and a sludge discharge pipe for discharging the sludge separated from the settling tank.

Preferably, the bamboo members of the bamboo biofiltration membrane carbonize the surface to increase the microbial contact surface.

The bamboo member of the bamboo biofiltration membrane may be formed with a plurality of through holes penetrating through the upper and lower surfaces in the longitudinal direction in order to increase the contact surface with the microorganisms.

The fixing member of the bamboo biofiltration membrane is provided with a first guide bar having a first guide groove into which one end of the bamboo member is slidably inserted, and a second guide groove having a second guide groove into which the other end of the bamboo member is slidably inserted. The guide bar, and fixed to one end of the first guide bar and the second guide bar is fixed to the blocking portion for blocking the first and second guide grooves and detachable to the other end of the first guide bar and the second guide bar. It may be installed to be provided with a detachable blocking portion for blocking the first and second guide grooves.

A first conveying line for conveying sludge from said first steam tank to said first anoxic tank;

A second conveying line for conveying sludge from the second steam tank to the second anoxic tank;

Further comprising a third conveying line for conveying the sludge precipitated in the settling tank to the anaerobic tank,

The bamboo biofiltration membrane includes a first biofiltration membrane in which the bamboo members are spaced apart from each other by a predetermined interval, and a second biofiltration membrane in which the bamboo members are respectively spaced apart by a predetermined interval and disposed adjacent to the first biofiltration membrane. The bamboo member of the first biofiltration membrane and the bamboo member of the second biofiltration membrane may be alternately installed to provide a substantially sealed microbial contact surface.

A flow path conversion partition wall may be further provided between the first biofiltration membrane and the second biofiltration membrane to convert the flow path of the treated water.

Advanced sewage and wastewater treatment apparatus using the bamboo biofiltration membrane according to the present invention has the advantage that the adhesion efficiency of the microorganism is increased by using a bamboo member having a large specific surface area.

In addition, there is an advantage that the efficiency of the sewage and wastewater treatment is improved by increasing the contact rate of the bamboo members and the sewage and wastewater by using the bamboo biofiltration membrane installed with the bamboo members spaced apart from each other.

1 is a block diagram of an advanced sewage and wastewater treatment apparatus using a bamboo biofiltration membrane according to the present invention,
2 is a partially cutaway perspective view of a tank in which the bamboo biofiltration membrane of the first embodiment according to the present invention is installed;
3 is a perspective view of a bamboo member in which a through hole of a bamboo biofiltration membrane is formed and the surface is carbonized according to the present invention;
Figure 4 is a perspective view of the irregularities formed in the bamboo member of the bamboo biofiltration membrane according to the present invention,
5 is an exploded perspective view showing a second embodiment of the bamboo biofiltration membrane according to the present invention;
Figure 6 is a perspective view showing the main portion of the bamboo member of the bamboo biofiltration membrane of Figure 5 installed to be spaced apart a predetermined interval, respectively;
7 is a perspective view illustrating main parts of a third embodiment of the bamboo biofiltration membrane according to the present invention;
8 is a perspective view showing a state in which a flow path conversion partition is installed in the bamboo biofiltration membrane of FIG. 6;
9 is a cross-sectional view of FIG. 8;

The advanced sewage and wastewater treatment apparatus using the bamboo biofiltration membrane according to the present invention is to improve the wastewater and wastewater treatment efficiency by widening the contact area with microorganisms by using bamboo.

Referring to the drawing, the sewage and wastewater advanced treatment apparatus 1000 using the bamboo biofiltration membrane is anaerobic tank 100, the first anaerobic tank 200, the first aerobic tank 300, the second anoxic tank 400, the second aerobic tank ( 500), the settling tank 600, the first biomass tank 300 and the bamboo biofiltration membrane 20 is installed in the second unit 500, and the first unit 300 and the second unit 500 for supplying air It is provided with an air supply unit 330, the supernatant water discharge pipe 610 is installed in the settling tank 600 to discharge the supernatant and the sludge discharge pipe 620 for discharging the sludge.

The anaerobic tank 100 discharges the wastewater by the sewage and wastewater inflow pipe 120 and releases phosphorus using the microorganisms of the sludge returned from the sedimentation tank 600 which will be described later. The anaerobic tank 100 is provided with a stirrer 130 so that the microorganisms of the sludge and the returned sludge are sufficiently mixed.

The first anaerobic tank 200 is connected to the anaerobic tank 100 and the first treated water discharge pipe 110 to flow in the treated water treated in the anaerobic tank 100. In the first oxygen-free tank 200, the active denitrification reaction is made by the microorganism, nitrogen is removed, and organic matter decomposition is performed. The first anoxic tank 200 is provided with a stirrer 230 so that the treated water and the microorganisms treated in the anaerobic tank 100 are sufficiently mixed.

The first aerobic tank 300 is connected to the first anaerobic tank 200 and the second treated water discharge pipe 210 to flow in the treated water treated in the first anaerobic tank 200. In the first aeration tank 300, the excessive intake of phosphorus by the microorganism and the oxidation of ammonia nitrogen is converted to nitrate nitrogen, the organic matter is removed. The first unit 300 is provided with a plurality of bamboo biofiltration membrane 20 which microorganisms can contact.

The bamboo biofiltration membrane 20 includes bamboo members 10 and fixing members 22 supporting both ends of the bamboo members 10. Bamboo member 10 is processed in the form of bamboo plate, it may be carbonized surface to improve the activity of microorganisms. Bamboo has more micropores than carbonized other types of trees, so the surface area is wider, and the microbial contact surface is wider, so the microorganisms can be active. As shown in FIG. 3, the bamboo member 12 may be formed with a plurality of through holes 14 through which the surface is carbonized and formed in the longitudinal direction and penetrates the upper and lower surfaces. When the surface of the bamboo member 12 is carbonized, the durability is greater than that of the whole bamboo member 12 is not easily damaged. In addition, the concave-convex 17 may be formed on the surface as shown in FIG. In this case, the contact area between the bamboo member 16 and the microorganism is increased by the through hole 14 and the unevenness 17. The fixing member 26 includes a first fixing bar 22 for supporting one end of the bamboo members 10 and a second fixing bar 24 for supporting the other ends of the bamboo members 10. Fitting grooves 28 are provided in the first fixing bar 22 and the second fixing bar 24 so that one end and the other end of the bamboo members 10 may be fitted to each other. Here, the first fixing bar and the second fixing bar may be screwed to one end and the other end of the bamboo member, unlike the illustrated example. Bamboo biofiltration membrane 20 is installed in a plurality of coupling unit 29 in the first aerobic tank (300).

5 is a perspective view showing a second embodiment of the bamboo biofiltration membrane according to the present invention.

The fixing member 30 has a first guide bar 32 provided with a first guide groove 33 in which one end of the bamboo member 10 is slidably inserted, and the other end of the bamboo member 10 is slidably inserted. The second guide bar 34 is provided with a second guide groove (35) which is provided, and fixed to one end of the first guide bar 32 and the second guide bar (34) and the first guide groove (33) 2 is provided with a fixed blocking portion 36 for blocking the guide groove 35, and a removable blocking portion 38 detachably installed at the other ends of the first guide bar 32 and the second guide bar 34. . A first guide groove 33 and a second guide groove 35 are formed in the first guide bar 32 and the second guide bar 34 so that the bamboo member 10 can be easily coupled. The detachable blocking part 38 is formed to have a length corresponding to the length of the first guide bar 32 and the second guide bar 34 spaced apart from each other, and the other of the first guide bar 32 and the second guide bar 34. Coupling grooves 39 having a size corresponding to the thickness of the first guide bar 32 and the second guide bar 34 are formed to allow the end to be fitted.

The bamboo member 10 is inserted into the first guide groove 33 and the second guide groove 35 so as to slide on the first guide bar 32 and the second guide bar 34, and then the first guide bar 32. ) And the detachable blocking part 38 is inserted into the other end of the second guide bar 34 to prevent separation of the bamboo member 10.

FIG. 6 is a perspective view illustrating main parts of the bamboo biofiltration membrane of FIG. 5, which are installed at predetermined intervals, respectively.

One end of the bamboo biofiltration membrane 40 is inserted into the first guide groove 35a of the first guide bar 34a at one end of the bamboo member 10, but the first biofiltration membranes in which the bamboo members 10 are spaced a predetermined distance from each other ( 30a) and one end of the bamboo member 10 are installed in the first guide groove 35b of the first guide bar 34b at predetermined intervals, respectively, and the bamboo members 10 of the first biofiltration membrane 30a and A second biofiltration membrane 30b is installed alternately. The bamboo biofiltration membrane 40 is provided with a plurality of first biofiltration membranes 30a and second biofiltration membranes 30b alternately to provide a substantially sealed microbial contact surface. Here, the bamboo member 10 may be fixed by being screwed to the first guide bars 34a and 34b.

In the above description, the fixing member 30 is provided with first and second guide grooves 33 and 35 in the first and second guide bars 32 and 34 so that the bamboo member 10 is slidable. Alternatively, the fixing member may be formed to maintain the bamboo member spaced apart a predetermined interval.

7 shows a perspective view of a third embodiment of the bamboo biofiltration membrane according to the present invention.

The fixing member 50 has a third guide bar 52 supporting one end of the bamboo member 10 and a fourth guide supporting the other end of the bamboo member 10 and formed in the same manner as the third guide bar 52. A bar (not shown) is provided. An inlet portion 56 is formed in the third guide bar 52 and the fourth guide bar (not shown) so that one end and the other end of the bamboo member 10 are gripped, and between each inlet 56. The interval maintaining part 55 is formed so that the bamboo members 10 are spaced apart by a predetermined interval. By installing the bamboo members 10 at predetermined intervals, the microbial contact surface is extended to the bamboo members 10, and the contact surface with the sewage and wastewater is also expanded to improve sewage and wastewater treatment efficiency.

8 is a perspective view illustrating a state in which a flow path conversion partition is installed in the bamboo biofiltration membrane of FIG. 6, and a cross-sectional view of FIG. 8 is illustrated in FIG. 9.

The flow path conversion partition wall 60 is provided at both ends of the base plate 66 and the first flow groove 64 provided with the first flow groove 64 so that the treated water flows, and the front and rear surfaces of the base plate 66. The first and second flow path guide plates 63 and 62 are provided respectively to form the flow path of the treated water. The first and second flow path guide plates 63 and 62 are formed to have a length corresponding to the length of the bamboo member 10 of the first and second biofiltration membranes 30a and 30b. The first flow guide plate 83 is installed to abut the upper end of the bamboo member 10 of the first biofiltration membrane 30a, and the second flow guide plate 82 is the bamboo member 10 of the second biofiltration membrane 30b. It is installed in contact with the lower end. The treated water flowing through the second flow groove 31a provided between the bamboo members 10 of the first biofiltration membrane 30a passes through the first flow groove 64 of the flow path conversion partition 60 and the second biofiltration membrane. It flows through the 3rd flow groove 31b provided between the bamboo members 10 of 30b. The flow path conversion partition 60 forms a flow path between the first biofiltration membrane 30a and the second biofiltration membrane 30b so that the first biofiltration membrane 30a and the second biofiltration membrane 30b are alternately installed. The treated water can flow efficiently in the filtration membrane.

The first aerobic tank 300 is connected to the first anoxic tank 200 to convey sludge from the first aerobic tank 300 to the first anoxic tank 200 to maintain the concentration of microorganisms in the first anoxic tank 200. The conveying line 320 is provided.

The second anoxic tank 400 is connected to the first steam tank 300 and the third treatment water discharge pipe 310 to be introduced into the treated water treated in the first steam tank 300. In the second anoxic tank 400, the active denitrification reaction is performed by the microorganism, nitrogen is removed, and organic matter decomposition is performed. The second anoxic tank 400 is provided with an agitator 430 such that the treated water and the microorganisms treated in the first aerobic tank are sufficiently mixed.

The second aeration tank 500 is connected to the second anaerobic tank 400 and the fourth treated water discharge pipe 410 to flow in the treated water treated in the second anaerobic tank 400. A plurality of bamboo biofiltration membranes 20 are installed inside the second aeration tank 500 to treat organic matter of the treated water treated in the second anoxic tank 400 by microorganisms. Here, the bamboo biofiltration membrane 20 has the same configuration as the bamboo biofiltration membrane described above.

A second tank 500 is connected to the second oxygen-free tank 400 to convey the sludge from the second tank 500 to the second anoxic tank 400 to maintain the concentration of microorganisms in the second oxygen-free tank (400) The conveying line 520 is provided.

The settling tank 600 is connected to the second gas tank 500 and the fifth treatment water discharge pipe 510, the treated water flows in the second gas tank 500. In the settling tank 600, the sludge sinks to the bottom so that the supernatant and the sludge are separated. The supernatant separated from the sedimentation tank 600 is discharged to the discharge tank 700 through the supernatant discharge pipe 610 and the sludge that is settled in the lower portion of the sedimentation tank is discharged to the outside through the sludge discharge pipe 620. Part of the sludge is returned to the anaerobic tank 100 through the third conveying line 630 to maintain the concentration of microorganisms in the anaerobic tank 100.

 The air supply unit 330 is provided with a first air supply pipe 332 connected to the first breathing tank 300, and a second air supply pipe 334 connected to the second breathing tank 500, so that the first and second breathing tanks 300 are installed. , 500) supply sufficient dissolved oxygen to foster internal aerobic microorganisms or to maintain activity.

The advanced sewage and wastewater treatment apparatus using the bamboo biofiltration membrane according to the present invention increases the adhesion efficiency of microorganisms by using a bamboo member having a large specific surface area. In addition, by using the bamboo biofiltration membrane that is installed in the bamboo member spaced apart from each other to increase the contact rate of the bamboo member and the sewage, wastewater is improved the efficiency of sewage and wastewater treatment.

The present invention as described and illustrated above is not intended to be limited to the above embodiments, and may be modified in various forms without departing from the spirit of the present invention.

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

1000; Advanced Wastewater and Wastewater Treatment System Using Bamboo Biofiltration Membrane
100; Anaerobic tank 200; First anaerobic tank
300; First unit 400; The second anaerobic tank
500; Second vessel 600; Sedimentation tank
700; Discharge tanks 10, 12, 16; Bamboo
20, 40; Bamboo biofiltration membranes 26, 30, 50; Fixed member
30a; First biofiltration membrane 30b; 2nd biofiltration membrane
60; Euro conversion bulkhead

Claims (6)

An anaerobic tank for inflow of sewage and wastewater by the sewage and wastewater inlet pipes to remove phosphorus in the introduced sewage and wastewater;
A first anaerobic tank connected to the anaerobic tank and subjected to denitrification of the treated water treated in the anaerobic tank;
A first aerobic tank connected to the first anoxic tank and treating the treated water treated in the first anoxic tank by a microorganism;
A second anoxic tank connected to the first tank and wherein the treated water treated in the first tank is denitrified;
A second aerobic tank connected to the second anoxic tank and treating the treated water treated in the second anoxic tank by a microorganism;
A settling tank connected to the second steam tank and separating the treated water treated in the second steam tank into supernatant water and sludge;
A plurality of bamboo members are installed in the first and second tanks, the plurality of bamboo members extending in the longitudinal direction and the both ends of the bamboo members to support both ends of the bamboo members to provide a microbial contact surface Bamboo biofiltration membrane having a fixing member;
An air supply unit for supplying air to the first and second breathing tanks;
A supernatant discharge pipe discharging the supernatant separated from the settling tank;
Sewage and wastewater advanced treatment apparatus using a bamboo biofiltration membrane, characterized in that it comprises a; sludge discharge pipe for discharging the sludge separated from the sedimentation tank. The method of claim 1,
Bamboo member of the bamboo biofiltration membrane is a high-level treatment device for sewage and wastewater using a bamboo biofiltration membrane, characterized in that the surface is carbonized to increase the microbial contact surface. The method of claim 1,
The bamboo member of the bamboo biofiltration membrane is a high degree of sewage and wastewater treatment apparatus using a bamboo biofiltration membrane, characterized in that a plurality of through-holes are formed in the longitudinal direction in order to increase the contact surface with the microorganisms. The method of claim 1,
The fixing member of the bamboo biofiltration membrane is provided with a first guide bar having a first guide groove into which one end of the bamboo member is slidably inserted, and a second guide groove having a second guide groove into which the other end of the bamboo member is slidably inserted. The guide bar, and fixed to one end of the first guide bar and the second guide bar is fixed to the blocking portion for blocking the first and second guide grooves and detachable to the other end of the first guide bar and the second guide bar. Sewage and wastewater advanced treatment apparatus using a bamboo biofiltration membrane characterized in that it is installed so as to have a detachable blocking portion for blocking the first and second guide grooves. The method of claim 1,
A first conveying line for conveying sludge from said first steam tank to said first anoxic tank;
A second conveying line for conveying sludge from the second steam tank to the second anoxic tank;
Further comprising a third conveying line for conveying the sludge precipitated in the settling tank to the anaerobic tank,
The bamboo biofiltration membrane includes a first biofiltration membrane in which the bamboo members are spaced apart from each other by a predetermined interval, and a second biofiltration membrane in which the bamboo members are respectively spaced apart by a predetermined interval and disposed adjacent to the first biofiltration membrane.
The bamboo member of the first biofiltration membrane and the bamboo member of the second biofiltration membrane are installed alternately to provide a substantially sealed microbial contact surface, wherein the advanced wastewater and wastewater treatment system using the bamboo biofiltration membrane. The method of claim 5, wherein
An advanced treatment system for sewage and wastewater using bamboo biofiltration membranes, further comprising a flow path conversion partition wall installed between the first biofiltration membrane and the second biofiltration membrane to convert the flow path of the treated water.

Images