KR200320035Y1 - The buoyant control type supernatant discharging equipment of sequencing batch ractor process - Google Patents
The buoyant control type supernatant discharging equipment of sequencing batch ractor process Download PDFInfo
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- KR200320035Y1 KR200320035Y1 KR20-2003-0010391U KR20030010391U KR200320035Y1 KR 200320035 Y1 KR200320035 Y1 KR 200320035Y1 KR 20030010391 U KR20030010391 U KR 20030010391U KR 200320035 Y1 KR200320035 Y1 KR 200320035Y1
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- supernatant
- main body
- air
- buoyancy
- floating
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- 239000006228 supernatant Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000007599 discharging Methods 0.000 title claims abstract 3
- 238000012163 sequencing technique Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005188 flotation Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 5
- 238000005273 aeration Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
Abstract
본 고안은 회분식 활성슬러지법의 상등수 배출단계에서 생물학적 반응과 침전으로 처리된 상등수를 수면 아래에서 스컴 등의 부유물질이 배출되지 않도록 하여 상등수 만을 배출하기 위한 부력조절형 부상식 상등수 배출장치에 관한 것이다.The present invention relates to a buoyancy-type floating supernatant discharge device for discharging supernatant only by preventing supernatant such as scum from being discharged from the supernatant treated by biological reaction and precipitation in the supernatant discharge step of the batch activated sludge method. .
본 고안의 부력조절형 부상식 상등수 배출장치는 본체(1), 신축관(6), 배출관(7), 부상조절장치(20), 부력조정공구(35)등 으로 구성되며, 본체(1)가 두 개의 가이드파이프(10)(11)를 따라 상하 자동으로 작동할 수 있다. 이때 부상조절장치(20)는 전동밸브(28)(29), 수동글로브밸브(24)(25), 수동볼밸브(26)(27), 에어필터(23)로 구성한다. 본 고안에서는 공기압축기(33)에 의해 공기가 공급되면 부상조절장치(20)의 전동밸브(28)(29)가 작동하여 본체(1)가 상승함에 따라 상등수 배출이 차단되고, 공기를 배제하면 자동밸브(28)(29)가 작동하여 본체(1)가 침강함에 따라 처리수의 배출을 자동/수동으로 제어할 수 있는 장치이다.The buoyancy-type floating supernatant discharge device of the present invention is composed of a main body (1), expansion pipe (6), discharge pipe (7), floating control device (20), buoyancy control tool (35), etc., main body (1) Can automatically operate up and down along the two guide pipes (10) (11). At this time, the floating control device 20 is composed of an electric valve 28, 29, manual globe valve 24, 25, manual ball valve 26, 27, air filter (23). In the present invention, when air is supplied by the air compressor 33, the electric valves 28 and 29 of the flotation control device 20 operate to discharge the supernatant water as the main body 1 rises, and the air is excluded. The automatic valves 28 and 29 operate to control the discharge of the treated water automatically or manually as the main body 1 is settled.
Description
고안은 하수·폐수처리장치에 관한 것으로써 보다 상세하게 회분식 활성슬러지법 등에 사용되는 부력조절형 부상식 상등수 배출장치에 관한 것이다.The present invention relates to a sewage and wastewater treatment device, and more particularly, to a buoyancy-type floating supernatant discharge device used in a batch activated sludge method.
회분식 활성슬러지법은 원수유입, 혐기/무산소, 포기, 침전, 상등수 배출 등의 단계로 이루어진다. 상등수 배출단계에 사용되는 배출장치는 여러가지가 있으나 기존 부상식 상등수 배출장치는 침강과 상승의 조절이 단순히 공기압축기에 의존하여 자동조작에 어려움이 있고, 또한 스컴 등의 부유물질의 유입 없이 유출하기 위해서는 상등수 배출장치의 침강과 상승의 속도 조절이 필요한데 종래의 기술은 이를 조절할 수 없는 문제점이 있다. 또한 가이드파이프(10)를 상등수배출장치 중앙에 설치하기 때문에 회분식 반응조의 포기시 수면의 출렁임에 따라 상등수배출장치(1)가 기울어져 공간부를 통해 스컴이 유입되어 처리수의 수질이 악화되는 경우가 있으며, 공기실(4)의 높은 부력으로 부상식 상등수 배출장치의 상등수 유출에 문제가 발생할 경우 부상높이를 조절하여야 하지만 이를 해결할 수 없는 문제점이 있다.Batch activated sludge process consists of raw water inflow, anaerobic / anoxic, aeration, sedimentation, and supernatant discharge. Although there are many discharge devices used for the discharge of supernatant water, the existing floating water discharge device has difficulty in automatic operation simply because the control of sedimentation and lift is dependent on the air compressor. It is necessary to control the speed of sedimentation and ascent of the supernatant discharge device, but the prior art has a problem that cannot be adjusted. In addition, since the guide pipe 10 is installed in the center of the supernatant discharge device, the supernatant discharge device 1 is inclined due to the fluctuation of the water when the batch reactor is abandoned, so that the scum flows into the space part and deteriorates the water quality of the treated water. In addition, when a problem arises in the outflow of the upper water of the floating type supernatant discharge device due to the high buoyancy of the air chamber 4, the height of injuries must be adjusted, but there is a problem that cannot be solved.
본 고안의 부력조절형 부상식 상등수 배출장치는 부상조절장치(20)의 작동에 따라 2개의 가이드 파이프(10)(11)를 이용 항상 수면과 평행하게 상하운동의 속도조절이 가능하며, 공기실(4)에 물을 넣고 부력조정공구(35)를 이용하여 부상높이를 조절하기 때문에 스컴 등 부유물질의 유입 없이 침전슬러지와 분리된 상등수 만을 용이하게 배출할 수 있다.The buoyancy-type floating supernatant discharge device of the present invention can always adjust the speed of vertical movement parallel to the water by using two guide pipes 10 and 11 according to the operation of the flotation control device 20, and the air chamber Since water is put into (4) and the buoyancy adjustment tool 35 is used to adjust the height of lift, only the supernatant separated from the settling sludge can be easily discharged without inflow of suspended solids such as scum.
제1도는 종래기술의 부상식 상등수 배출장치의 단면도1 is a cross-sectional view of the conventional floating water discharge device
제2도는 본 고안에 따른 부력조절형 부상식 상등수 배출장치 설치도2 is a buoyancy-type floating supernatant discharge device according to the present invention
제3도는 본 고안에 따른 부상조절장치 계통도3 is a system of floating control device according to the present invention
제4도는 본 고안에 따른 부상식 상등수 배출장치의 상승시 부상조절장치 단면도4 is a cross-sectional view of the floating control device when the rise of the floating type supernatant discharge device according to the present invention
제5도는 본 고안에 따른 부상식 상등수 배출장치의 침강시 부상조절장치 단면도5 is a cross-sectional view of the flotation control device when settling the flotation top water discharge device according to the present invention
제6도는 본 고안에 따른 부상식 상등수 배출장치의 부력조정 단면도Figure 6 is a buoyancy adjustment cross-sectional view of the floating supernatant discharge device according to the present invention
〈도면의 주요 부분에 대한 부호의7 설명〉<7 Explanation of Symbols for Main Parts of Drawing>
1. 본체 2. 부력실1. Main body 2. Buoyancy chamber
3. 공간부 4. 공기실3. Space 4. Air chamber
5. 집수관 6. 신축관5. Water pipe 6. Expansion pipe
7. 배출관 8. 공기관7. exhaust pipe 8. air pipe
9. 공기밸브 10. 가이드 파이프a9. Air valve 10. Guide pipe a
11. 가이드파이프b 12. 상등수11.Guide pipe b 12. Constant water
13. 침전슬러지 14. 회분식 반응조13. Sedimentation Sludge 14. Batch Reactor
20. 부상조절장치 21. 공기공급관20. Flotation device 21. Air supply pipe
22. 본체 연결 공기관 23. 에어필터22. Air pipe to main body 23. Air filter
24. 수동글로브밸브a 25. 수동글로브밸브b24. Manual Globe Valve a 25. Manual Globe Valve b
26. 수동볼밸브a 27. 수동볼밸브b26. Manual ball valve a 27. Manual ball valve b
28. 전동밸브a 29. 전동밸브b28. Electric valve a 29. Electric valve b
30. 수동볼밸브c 31. 수동볼밸브d30. Manual ball valve c 31. Manual ball valve d
32. 공기배제관 33. 공기압축기32. Air Exhaust Pipe 33. Air Compressor
34. 수면 35. 부력조정공구34. Sleep 35. Buoyancy control tool
이와 같은 목적을 달성하기 위해 본 고안에서 부력조절형 부상식 상등수배출장치의 본체(1)는 부상조절장치(20)를 이용, 공기의 공급/배제가 자동으로 이루이질 수 있는 부력실(2), 물을 넣어 본체(1)의 부상높이를 조절할 수 있는 공기실(4), 공기실(4)의 부력을 조절할 수 있는 부력조정공구(35), 수면(33) 아래에서 상등수를 배출할 수 있는 집수관(5), 공간부(3)와 연결된 신축관(6), 본체(1)를 상하운동 하도록 유도하는 2개의 가이드 파이프(10)(11)로 구성된다. 이때 부상조절장치(20)는 부력을 조절할 수 있는 전동밸브 (28)(29),수동글로브밸브(24)(25), 수동볼밸브(26)(27), 에어필터(23)로 구성된다.In order to achieve the above object, the main body 1 of the buoyancy-type floating supernatant discharge device in the present invention uses the flotation control device 20, so that the buoyancy chamber 2 can be automatically supplied / excluded by air. The upper water can be discharged from the air chamber (4) to adjust the height of the main body (1), the buoyancy adjustment tool (35) to adjust the buoyancy of the air chamber (4), and the water surface (33). It consists of a collecting pipe (5), the expansion pipe (6) connected to the space portion (3), two guide pipes (10) (11) to guide the main body (1) to move up and down. At this time, the floating control device 20 is composed of electric valves 28, 29, manual globe valves 24, 25, manual ball valves 26, 27, air filters 23 that can adjust the buoyancy. .
이하 첨부된 도면을 참고하여 본 고안을 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.
제1도는 종래기술의 부상식 상등수 배출장치의 단면도이다.1 is a cross-sectional view of a conventional floating supernatant discharge device.
이 종래의 기술은 단순히 공기관(8)에 공기가 공기밸브(9)를 통해 공급되면 본체(1)가 부상하여 상등수 배출을 중단하고, 그 반대로 공기가 배제되면 상등수(12)를 배출한다. 그러나 상등수(12)의 유출량을 조절하기 위한 공기 공급과 배제를 조절할 수 없는 문제점이 있다. 또한 가이드 파이프(10)가 중앙에 설치되어 회분식 분응조의 산소공급을 위한 포기시 수면의 출렁임으로 인해 본체(1)가 기울어져 상부가 개방된 공간부(3)를 통해 스컴이 유입되는 문제점을 가지고 있으며, 신축관(6)이 수직으로 설치되기 어려워 배출량의 한계가 있다. 본체(1)의 공기실(4)에 부력이 높아 부상높이가 높을 경우 부력실(2)의 공기를 배제하여도 침강에 문제점을 발생할 수 있다.This conventional technology simply discharges the supernatant water when air is supplied to the air pipe 8 through the air valve 9 to stop the discharge of the supernatant water, and vice versa when the air is excluded. However, there is a problem in that it is not possible to adjust the air supply and exclusion for adjusting the outflow amount of the supernatant (12). In addition, the guide pipe 10 is installed in the center has a problem that the scum flows through the space portion 3 is inclined to the main body 1 due to the fluctuation of the water surface when abandoning for oxygen supply of the batch type coagulation tank. In addition, the expansion pipe (6) is difficult to install vertically, there is a limit of discharge. If the buoyancy is high in the air chamber 4 of the main body 1 and the floating height is high, problems may occur in sedimentation even if the air in the buoyancy chamber 2 is excluded.
제2도는 본 고안에 따른 부력조절형 부상식 상등수 배출장치의 설치도이다.2 is an installation of the buoyancy-type floating type supernatant discharge device according to the present invention.
본 고안의 부력조절형 부상식 상등수 배출장치는 상등수 유출정지시 공기압축기(33)에 의해 압축공기가 공기공급관(21)과 부상조절장치(20)내 전동밸브a(28)를 통과하여 부력실(2)에 공급되면 본체(1)가 압축공기의 부력으로 상승하여 상등수의 유출이 정지된다. 상등수 배출은 부력실(2)의 압축공기가 부상조절장치(20)내의 전동밸브b(29)를 통과 공기배제관(32)를 통해 압축공기 배출되면 본체(1)가 침강하여 상등수가 신축관(6) 통해 처리수조로 이송된다. 본체(1)의 상승/침강은 전동밸브a(28)과 전동밸브b(29)의 밸브 개도 조절에 따라 상승시간과 침강시간을 조절할 수 있기 때문에 상등수의 유출량의 변화가 가능하다.In the buoyancy control type floating type supernatant discharge device of the present invention, the compressed air passes through the air supply pipe 21 and the electric valve a (28) in the flotation control device 20 by the air compressor 33 when the supernatant is discharged. When supplied to (2), the main body 1 rises by the buoyancy of compressed air, and the outflow of supernatant water is stopped. The discharge of the supernatant water is carried out when the compressed air of the buoyancy chamber (2) is discharged through the air exhaust pipe (32) through the electric valve b (29) in the flotation control device (20). (6) is transferred to the treatment tank. Since the rise / settling time of the main body 1 can adjust the rise time and settling time according to the valve opening degree adjustment of the electric valve a28 and the electric valve b29, the outflow amount of supernatant water can be changed.
제3도는 본 고안에 따른 부상조절장치 계통도이다.3 is a system of floating control device according to the present invention.
본 고안에 있어, 부상조절장치(20)의 상승과 침강을 자동으로 제어할 수 있는 시스템으로 부상조절장치(20) 내에 공기공급관(21), 본체 연결 공급관(22), 에어필터(23), 수동글로브밸브a(24), 수동글로브밸브b(25), 수동볼밸브a(26), 수동볼밸브b(27), 전동밸브a(28), 전동밸브b(29), 수동볼밸브c(30), 수동볼밸브d(31), 공기배제관(32)으로 구성된다. 그 작동순서는 제4도와 제5도에서 서술한다.In the present invention, the air supply pipe 21, the main body supply supply pipe 22, the air filter 23, in the floating control device 20 as a system that can automatically control the rise and settle of the floating control device 20, Manual Globe Valve a (24), Manual Globe Valve b (25), Manual Ball Valve a (26), Manual Ball Valve b (27), Electric Valve a (28), Electric Valve b (29), Manual Ball Valve c 30, the manual ball valve d (31), the air exhaust pipe (32). The operation sequence is described in FIG. 4 and FIG.
제4도는 본 고안에 따른 부상식 상등수 배출장치의 상승시 부상조절장치 단면도이다.4 is a cross-sectional view of the floating control device when the rise of the floating type supernatant discharge device according to the present invention.
본 고안에 있어, 부상조절장치의 부상시 작동순서는 제어 시스템의 신호에 따라 공기압축기(33)에서 압축공기가 공기공급관(21)을 통해 공급되면 에어필터(23) 에서 이물질과 수분을 제거되고, 따라 전동밸브a(28)의 개도에 따라 압축공기량을 조절한 후 수동볼밸브a(26)를 거쳐 제2도의 부력실(2)로 공급되게 한다. 공급된 압축공기는 본체(1)를 상승시켜 집수관(5)이 수면(11)보다 높게 위치하여 상등수의 배출을 중지한다. 만일 수동 조작일 경우 수동글로브밸브a(24)를 열고 나머지 밸브는 모두 닫는다.In the present invention, when the floating operation of the floating control device in accordance with the signal of the control system is supplied with compressed air from the air compressor (33) through the air supply pipe 21 to remove the foreign matter and water from the air filter (23) After adjusting the amount of compressed air according to the opening degree of the electric valve a (28), it is supplied to the buoyancy chamber (2) of FIG. 2 via the manual ball valve a (26). The supplied compressed air raises the main body 1 so that the collecting pipe 5 is positioned higher than the water surface 11 to stop the discharge of the supernatant water. If it is a manual operation, open the manual globe valve a (24) and close all other valves.
제5도는 본 고안에 따른 부상식 상등수 배출장치의 침강시 부상조절장치 단면도이다.5 is a cross-sectional view of the flotation control device when settling the flotation type supernatant discharge device according to the present invention.
본 고안 부상조절장치의 침강시 작동순서는 제2도의 부력실(2)의 공기를 배제해야 하기 때문에 수동볼밸브a(26)와 전동밸브b(29)를 열고 나머지 밸브는 모두닫는다. 부력실(2)의 공기가 배제되면 집수관(5)이 수면(11)아래로 침강하여 상등수가 배출관(7)을 통해 배출된다. 만일 수동 조작일 경우 수동볼밸브b(27)를 열고 나머지 밸브는 모두 닫는다.In order to settle the float control device of the present invention, the air flow in the buoyancy chamber 2 of FIG. 2 should be removed, so the manual ball valve a 26 and the electric valve b 29 are opened and the remaining valves are closed. When the air of the buoyancy chamber 2 is excluded, the collecting pipe 5 is settled below the water surface 11 so that the supernatant water is discharged through the discharge pipe 7. If it is a manual operation, open the manual ball valve b (27) and close all remaining valves.
제6도는 본 고안에 따른 부상식 상등수 배출장치의 부력조정 단면도이다.Figure 6 is a buoyancy adjustment cross-sectional view of the floating supernatant discharge device according to the present invention.
본 고안 부상식 상등수 배출장치 본체(1)의 집수관(5)은 부력실(2)의 압축공기를 모두 배제하였을 때 수면보다 아래에 위치하여야 한다. 그러나 공기실(4)의 부력이 너무 높아 부력실(2)의 공기를 모두 배제하여도 집수관(5)이 수면(34) 위에 위치하는 경우가 있다. 이때 공기실(4)에 물을 넣고 부력조정공구(35)를 부상조절장치(20)의 수동볼밸브c(30)와 연결하여 공기실(4)의 물을 배출하면서 상등수의 배출이 용이하도록 본체(1)의 부상높이를 조절할 수 있다.The water collecting pipe 5 of the main body of the floating supernatant discharge device 1 of the present invention should be positioned below the water surface when all the compressed air of the buoyancy chamber 2 is excluded. However, even if the buoyancy of the air chamber 4 is too high and all the air of the buoyancy chamber 2 is removed, the collection pipe 5 may be located on the water surface 34. At this time, the water is put into the air chamber 4, and the buoyancy control tool 35 is connected to the manual ball valve c 30 of the flotation control device 20 to discharge the water of the air chamber 4 so as to easily discharge the supernatant water. The floating height of the main body 1 can be adjusted.
이상과 같이 본 발명에 의하면, 부력조절형 상등수배출장치는 부상조절장치(20) 내에 수동밸브와 전동밸브를 설치하여 스컴 등 부유물질의 유출없이 침전슬러지와 분리된 상등수 만을 배출하기 위하여 침강과 부상의 속도 조절이 가능하고, 부력조정공구(35)를 이용하여 상등수 배출 수위의 부상높이를 용이하게 조절할 수 있는 장치이다.As described above, according to the present invention, the buoyancy control type supernatant discharge device is provided with a manual valve and an electric valve in the flotation control device 20 to settle and float only to discharge the supernatant separated from the settling sludge without the leakage of suspended substances such as scum. It is possible to adjust the speed, using the buoyancy adjustment tool 35 is a device that can easily adjust the height of the float water discharge level.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR20-2003-0010391U KR200320035Y1 (en) | 2003-04-04 | 2003-04-04 | The buoyant control type supernatant discharging equipment of sequencing batch ractor process |
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| KR20-2003-0010391U KR200320035Y1 (en) | 2003-04-04 | 2003-04-04 | The buoyant control type supernatant discharging equipment of sequencing batch ractor process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100592038B1 (en) | 2004-03-31 | 2006-06-20 | (주)에코데이 | Device for effectively discharging liquid substance from waste water separated into solids and liquid substance |
| KR100928470B1 (en) * | 2003-09-26 | 2009-11-25 | (주)휠탑 | Decanter |
| KR101779725B1 (en) * | 2016-11-09 | 2017-09-19 | 경상북도 경주시 | Apparatus of treating sewage using inflow dividing device and treated water discharging device |
| KR101779726B1 (en) * | 2016-11-09 | 2017-09-19 | 경상북도 경주시 | Discharge apparatus of superiority water |
| KR101791066B1 (en) * | 2016-12-21 | 2017-10-27 | 주식회사 그리너스 | Decanter device and intelligent remote control decanter device using thereof |
-
2003
- 2003-04-04 KR KR20-2003-0010391U patent/KR200320035Y1/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100928470B1 (en) * | 2003-09-26 | 2009-11-25 | (주)휠탑 | Decanter |
| KR100592038B1 (en) | 2004-03-31 | 2006-06-20 | (주)에코데이 | Device for effectively discharging liquid substance from waste water separated into solids and liquid substance |
| KR101779725B1 (en) * | 2016-11-09 | 2017-09-19 | 경상북도 경주시 | Apparatus of treating sewage using inflow dividing device and treated water discharging device |
| KR101779726B1 (en) * | 2016-11-09 | 2017-09-19 | 경상북도 경주시 | Discharge apparatus of superiority water |
| KR101791066B1 (en) * | 2016-12-21 | 2017-10-27 | 주식회사 그리너스 | Decanter device and intelligent remote control decanter device using thereof |
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