KR100249466B1 - Filtration member for sewage purification - Google Patents

Abstract

The present invention relates to a contact medium filled with a septic tank for collecting and treating sewage and manure sewage to create an optimal environment in which anaerobic and aerobic bacteria can inhabit during sewage and manure underwater decomposition. Injection molding and forming all-round contact media with a mesh structure to fill crushed stone, sand, or silica sand to be used for lamination, thereby optimizing the decomposition of nitrogen and phosphorus due to capillary phenomenon and osmotic reaction during aeration. By attaching aerobic bacteria to the outer wing, various microorganisms are rapidly adsorbed and inhabited to improve the decomposition rate of organic matter, and high pressure cleaning is possible by the fixed method to remove the hassle of exchange and minimize the maintenance cost. It relates to a contact medium for purification.

The contact media for sewage purification according to the present invention forms a mesh 13 structure on all sides of the frame 11 on which the wings 12 are extruded in a rectangular shape and protruded to the outside, and filled with crushed stone, sand or silica sand therein. It is characterized in that a plurality of laminated to be used.

Description

Contact media for sewage purification {Filtration member for sewage purification}

The present invention relates to a contact medium filled with a septic tank for collecting and treating sewage and manure sewage to create an optimal environment in which anaerobic and aerobic bacteria can inhabit during sewage and manure underwater decomposition. Injection molding and forming all-round contact media with a mesh structure to fill crushed stone, sand, or silica sand to be used for lamination, thereby optimizing the decomposition of nitrogen and phosphorus due to capillary phenomenon and osmotic reaction during aeration. By attaching aerobic bacteria to the outer wing, various microorganisms are rapidly adsorbed and inhabited to improve the decomposition rate of organic matter, minimize the excess sludge and suspended solids, and high pressure cleaning by the fixed method. The present invention relates to a contact filter for purifying sewage to remove wastes and minimize maintenance costs.

In general, the water pollution of the soil, rivers and water supply that is being raised is derived from the daily wastewater discharged from daily life.

The domestic wastewater is not a batch treatment in the final terminal treatment plant, but a tendency to fundamentally solve the water pollution of the natural ecosystem, rivers and lakes that are being destroyed by being cleaned and destroyed at the source of the cause.

The most commonly known treatment is the standard activated sludge process.

However, this method has the advantages of being the most common and generally the treated water quality is good and adaptability to temperature, while the adaptability to influent load fluctuations, power consumption due to oxygen supply, stabilization time after deterioration This takes a long time, the operation is complicated and difficult to maintain and require professional skills.

In order to solve this problem more, a contact aeration method using a so-called contact media has been proposed.

The contact aeration method is a method of processing organic materials using a large amount of microorganisms attached to the contact surface by filling a contact material in the aeration tank, and it is possible to stably secure a large amount of microorganisms without returning sludge to the aeration tank, thus adapting to impact load. It is excellent and can prevent the bulking (bulking) that occurs frequently in the activated sludge, there is an advantage such that the sludge generation amount is relatively small.

This contact aeration method will be described in more detail based on FIG. 1 as follows.

Step 1: As sewage, such as household wastewater from bathrooms and kitchens, and toilet manure, flows through the screen tank (1), it separates the impurities such as relatively large particles.

Step 2: Sewage passing through the screen tank 1 flows into the separation tank 2 to remove finer sludge and suspended solids.

This separation tank 2 is used as an anaerobic tank and is also a flow adjusting tank.

Step 3: The primary purified sewage from the separation tank (2) is introduced into the contact filtration tank (3) filled with the contact material so that anaerobic bacteria can be inhabited and the fiber of sewage manure by anaerobic contact material acting as a micro septic tank. The parts are dismantled and purged, and then they are transferred to the contact aeration tank.

Step 4: Occlusion and surplus of the sewage purified through the sedimentation separation tank (2) and the contact filtration tank (3) flows into the first chamber (4) and the second chamber (5) of the contact aeration tank and is scattered in the purified sewage. Sludge, etc., is purified secondarily by decomposing oil parts by aerobic and anaerobic bacteria inhabiting contact materials.

Step 5: Contact aeration tank Secondary water purified by aerobic and anaerobic bacteria in the first chamber (4) and the second chamber (5) flows into the settling tank (6) in which the disinfection tank is installed, and floats only the clear water. Escherichia coli, such as pathogens, may be in the water, so it is sterilized and discharged while passing through the disinfection tank.

At this time, the water quality of the discharged water is discharged into clear water of about 20PPM and 10PPM or less of BOD.

Step 6: Surplus sediment, occluded sludge, etc., which sank in the lower part of the household wastewater of bathrooms and kitchens, and the sewage sewage of the toilet through several stages are sent back to the first sedimentation tank (2) by the sludge return pump. It goes through the process.

In this process, the contact aeration method is extremely hygienic and safe because it uses the biological principle of completely decomposing living sewage by anaerobic and aerobic bacteria, and it does not need a separate sewage treatment plant because it is a device that treats sewage at the source of origin. In addition, the organic matter and nitrogen are removed by appropriate arrangement of sufficient oxygen and the contact material, so that the blocked sludge does not accumulate.

However, despite these characteristics, the conventional contact aeration method has the following problems.

In other words, the contact aeration method in which the organic material is processed by using a large amount of microorganisms attached to the contact surface by filling the contact material in the aeration tank is filled with a large amount of microorganisms when a high concentration of wastewater is introduced since the filled contact material is not fixed. Due to the desorption caused by the proliferation, the water quality of the treated water may be deteriorated, and the treatment efficiency may be reduced due to the pore closure of the contact material, and a backwashing device is required to prevent the pore closure of the contact material. there was.

The present invention has been made in order to solve the above-mentioned problems, using a contact medium filled in the septic tank to create an optimal environment in which anaerobic bacteria and aerobic bacteria can inhabit during sewage and manure underwater decomposition and purification process. To optimize the decomposition of nitrogen and phosphorus due to capillary phenomenon and osmotic reaction in the aeration process, in particular, aerobic bacteria are attached to the outer wing, so that various microorganisms can be rapidly adsorbed to improve the decomposition rate of organic matter, The purpose of the present invention is to provide a contact filter for cleaning of wastewater, which is capable of high-pressure cleaning by a fixed structure, thereby eliminating the need for replacement and minimizing maintenance costs.

In order to achieve the above object, the contact filter medium for sewage purification of the present invention is filled in a septic tank to form a contact medium that creates an optimal environment in which anaerobic bacteria and aerobic bacteria can inhabit during sewage and manure underwater decomposition and purification. In this case, the injection molding in a rectangular shape to form a mesh structure on all sides of the frame formed wings protruding to the outside, it is characterized in that the crushed stone, sand or silica sand and the like packed and then laminated a plurality of.

By the above characteristics, the decomposition of nitrogen and phosphorus according to the capillary phenomenon and the osmotic reaction during the aeration process is improved, and aerobic bacteria are easily attached to the outer wing, so that various microorganisms rapidly adsorb and inhabit, thereby improving the decomposition rate of organic matter, High-pressure cleaning is possible due to the fixed state, which eliminates the hassle of replacement and reduces maintenance costs.

1 is a process chart showing a general purification process of sewage,

2 is a perspective view showing an embodiment of a contact medium according to the present invention;

3 is a side cross-sectional view of a contact medium according to the present invention;

4 is a state diagram used in the contact medium according to the present invention.

Explanation of symbols on the main parts of the drawing

1: screen bath 2: sedimentation tank

3: contact filtration tank 4: contact aeration tank 1 room

5: contact aeration tank 2 rooms 6: settling tank

7: Disinfectant 10: Contact Media

11: frame 12: wings

13: mesh 14: crushed stone, sand or silica sand

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

Figure 2 is a perspective view showing an embodiment of the contact medium according to the present invention, Figure 3 is a side cross-sectional view of the contact medium according to the present invention, Figure 4 is a state of use of the contact medium according to the present invention.

As shown, the contact filter material 10 for sewage purification of the present invention forms a mesh 13 structure on all sides of the frame 11 in which the wings 12 are formed in a rectangular shape and protruded to the outside.

At this time, the wing 12 is formed in a plurality of places at a predetermined interval in the outer circumferential direction of the frame 11, the shape of the end is preferably to form an irregular shape in order to facilitate the microbial habitat and widen the surface area.

In addition, the mesh of the mesh 13 is determined in consideration of the size of the crushed stone, sand or silica sand (14) to be filled.

In addition, the contact medium 10 may be formed in various shapes, such as V-shaped, cylindrical, oval, diamond-like, not limited to a square as in the embodiment.

Hereinafter, the use method and effects of the present invention will be described with reference to FIG. 4.

As shown, the contact medium 10 of the present invention is first filled with crushed stone, sand or silica sand 14 and the like and then packing the inlet.

The contact filter 10 fills the contact filtration tank 3, the contact aeration tank first chamber 4 and the second chamber 5 of the purification apparatus in a lamination manner.

That is, the plurality of contact media 10 are arranged at predetermined intervals, and then stacked in a different direction thereon, and stacked by a predetermined height in such a zigzag manner.

If the contact filter 10 is stacked in the state of the wastewater purification process once again described as follows.

Step 1: As sewage, such as household wastewater from bathrooms and kitchens, and toilet manure, flows through the screen tank (1), it separates the impurities such as relatively large particles.

Step 2: Sewage passing through the screen tank 1 flows into the separation tank 2 to remove finer sludge and suspended solids.

This separation tank 2 is used as an anaerobic tank and is also a flow adjusting tank.

Step 3: The primary purified sewage from the sedimentation separation tank (2) after the first purification is introduced into the contact filtration tank (3) filled with the contact filter medium (10) of the present invention to decompose and purify the fibrous part of sewage manure. do.

At this time, the contact medium 10 uses an anaerobic contact material, but uses a large attachment area of sludge and many porosity.

Accordingly, the sewage does not occur in the conventional transport phenomenon, which was transported through the center of the sedimentation tank, and the multi-functional transport action occurs in the vertical direction and the left and right direction by the fixed contact media 10, and thus the residence time of the sewage is long. You lose.

Step 4: The purified wastewater flowing through the sedimentation separation tank (2) and the contact filtration tank (3) flows into the first chamber (4) and the second chamber (5) of the contact aeration tank, and at this time, the contact filter (10) filled with redness. Occlusion and surplus sludge scattered in the sewage by the purification is made using a full-scale microorganism.

In other words, it is possible to purify the oil by using the aerobic and anaerobic bacteria inhabiting the oil part.

Even in this case, the filthy water does not occur in the conventional transport phenomenon, which is transported through the center of the contact aeration tank, and the multi-functional transport action occurs in the vertical direction and the left and right transverse directions by a plurality of stacked fixed contact media 10 so that the retention of the filthy water It will take longer.

In addition, the decomposition of nitrogen and phosphorus caused by the capillary phenomenon and the osmotic reaction during the aeration process is active, the aerobic bacteria adhere to the outer wing 12, the various microorganisms are rapidly adsorbed inhabited to improve the decomposition rate of organic matter.

Step 5: Contact aeration tank Secondary water purified by aerobic and anaerobic bacteria in the first chamber (4) and the second chamber (5) flows into the settling tank (6) in which the disinfection tank (7) is installed and floats only clear water. E. coli, such as pathogens, may be inherent in the purified clear water, so that it is sterilized and discharged while passing through the disinfection tank.

Step 6: The first screen tank (1) and sedimentation tank are re-used by the sludge return pump. It is sent to (2) for reassembly.

As described above, the contact filter medium for sewage purification according to the present invention is filled in a septic tank to form a contact filter medium to create an optimal environment in which anaerobic bacteria and aerobic bacteria can inhabit during sewage and manure in water. Capillary phenomenon in the aeration process by forming a mesh structure on all sides of the frame that is injection molded in a rectangular shape and the wings protruding to the outside, filled with crushed stone, sand or silica sand, and then packed and stacked a plurality of them. Decomposition of nitrogen and phosphorus is improved by the osmotic pressure reaction, and aerobic bacteria are easily attached to the outer wing, so that various microorganisms can be rapidly adsorbed and the decomposition rate of organic matter is improved, and high pressure cleaning is possible by adopting fixed method. The cost of eliminating the hassle and maintenance costs that are exchanged from time to time is reduced, and the retention time of sewage It is to occur and a more efficient purification, there is an effect such that is semi-permanently extended life.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .

Claims (1)

Filled with a septic tank, it is composed of rectangular meshes to create an optimal environment for anaerobic and aerobic bacteria in the process of underwater decomposition and purification of sewage and manure. To Contact mesh for sewage purification, characterized in that the mesh (13) is formed on all sides of the injection molded frame (11), and projections (12) of uneven shape are integrally formed at four corners of the frame (11).

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