KR20020068311A - Apparatus for clarifying water and wastewater - Google Patents

Apparatus for clarifying water and wastewater Download PDF

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Publication number
KR20020068311A
KR20020068311A KR1020020043434A KR20020043434A KR20020068311A KR 20020068311 A KR20020068311 A KR 20020068311A KR 1020020043434 A KR1020020043434 A KR 1020020043434A KR 20020043434 A KR20020043434 A KR 20020043434A KR 20020068311 A KR20020068311 A KR 20020068311A
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water
tank
dissolved air
air flotation
sedimentation tank
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KR1020020043434A
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Korean (ko)
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KR100464716B1 (en
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최흥진
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최흥진
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Physical Water Treatments (AREA)

Abstract

PURPOSE: A non-dissolvable material separator is provided to effectively remove non-dissolvable materials such as solid and oil contained in water or wastewater by using gravitational settling and dissolved air flotation. CONSTITUTION: The non-dissolvable material separator for water and wastewater treatment is characterized in that a gravitational sedimentation tank(34) is positioned at the lower part of the separator, a dissolved air flotation tank(42) is positioned at the upper part of the gravitational sedimentation tank(34), the gravitational sedimentation tank(34) and the dissolved air flotation tank(42) are connected by a connection tunnel(22) therebetween, a mixing unit(20) is installed in the connection tunnel(22), a partition(32) is installed adjacently to an inlet(36) in the gravitational sedimentation tank(34), a flat plate or tube type settler(26) is installed inside the gravitational sedimentation tank(34), a sludge hopper(30) and a settled sludge drainage(28) are installed at the lower part of the gravitational sedimentation tank(34) respectively, a flotation sludge outlet(10) is installed at the upper part of a dissolved air flotation tank(42) while a discharge water collection unit(24a) is installed at the lower part of the dissolved air flotation tank(42), air coming out of an air dissolving unit(38) is connected to the lower part of the connection tunnel(22) between the settling tanks, the discharge water collection unit(24a) is connected to a discharge box(16) through a discharge water connection pipe(18a), and a height controllable dike(12) and a separated effluent outlet(14) are respectively installed at the discharge box(16).

Description

수처리 및 폐수처리용 고액분리기{APPARATUS FOR CLARIFYING WATER AND WASTEWATER}Solid-liquid separator for water treatment and wastewater treatment {APPARATUS FOR CLARIFYING WATER AND WASTEWATER}

본 발명은 물이나 폐수에 함유된 고형물과 기름을 중력침강원리와 용존공기를 이용한 부상원리를 이용하여 효과적으로 제거하기 위한 불용물 분리기에 대한 것이다.The present invention relates to an insoluble separator for effectively removing solids and oil contained in water or wastewater by using gravity sedimentation principle and flotation principle using dissolved air.

일반적으로 정수장이나 폐수처리장에서는 물이나 폐수에 함유된 고형물을 제거하기 위하여 중력침강장치가 사용된다. 비교적 비중이 1보다 큰 무거운 고형물은 쉽게 침전되어 제거되나 비중이 작은 것과 기름(비중이 1보다 조금 크거나 작음)은 중력침강이 어렵거나 불가능하다. 이와같이 비중이 1에 가까운 것은 용존공기부상(Dissolved-air floatation) 분리장치를 이용하여 제거한다. 용존공기부상 분리장치는 처리하고자 하는 물이나 폐수에 공기를 주입시켜 용존시킨 물과 접촉하게 하면 공기가 작은 방울로 유출된다. 물, 불용성 물질(비중이 1에 가까운 고형물 또는 기름 등)과 작은 공기방울이 함께 용존공기부상 분리탱크에 들어가며, 작은 공기방울이 수면으로 부상하면서 공기방울 표면에 불용성 물질이 달라붙게 된다. 따라서 용존공기부상분리탱크 표면에 부상된 불용물을 제거하여 분리하게 된다.In general, a gravity settling device is used to remove solids in water or wastewater in a water treatment plant or a wastewater treatment plant. Heavy solids with a relative specific gravity greater than 1 are easily precipitated and removed, but low specific gravity and oils (specific gravity slightly or less than 1) make gravity sedimentation difficult or impossible. As such, the specific gravity close to 1 is removed by using a dissolved-air floatation separator. Dissolved air flotation device injects air into the water or wastewater to be treated to come into contact with the dissolved water, and the air flows out into small droplets. Water, insoluble matter (such as solids or oils with specific gravity close to 1) and small air bubbles enter the dissolved air flotation tank, and small air bubbles rise to the surface, causing insoluble matter to adhere to the surface of the air bubbles. Therefore, the insoluble matters floating on the surface of the dissolved air flotation separation tank are removed and separated.

물이나 폐수에 함유된 불용물은 비중이 1보다 작은 것에서 1보다 큰 것까지 다양한 경우 중력침강장치나 용존공기부상분리탱크 하나만으로는 불용물을 모두 제거하는 것이 쉽지않다. 따라서, 비중이 큰 것을 중력침강원리를 이용하여 제거한 후 비중이 작은 것을 용존공기부상원리를 이용하여 제거하는 것이 이상적이나 기존의 분리장치는 단지 한가지 원리만을 이용하고 있다.Insoluble matter contained in water or wastewater varies from less than 1 to more than 1, and it is not easy to remove all insoluble matters using a gravity settler or dissolved air floatation tank alone. Therefore, it is ideal to remove the large specific gravity using the gravity sedimentation principle and the small specific gravity using the dissolved air flotation principle, but the existing separation device uses only one principle.

본 발명은 중력침강원리와 용존공기부상분리원리를 함께 적용한 통합형 분리장치를 만들어 다양한 비중을 갖는 불용물을 모두 제거하기 위한 것이다.The present invention is to remove all the insoluble matter having various specific gravity by making the integrated separation device applying the gravity sedimentation principle and the dissolved air flotation separation principle.

이와같은 목적을 달성하기 위하여 본 발명은 비중이 큰 고형물을 제거하기 위한 중력침강조와 비중이 작은 불용물을 제거하기 위한 용존공기부상조, 공기용존장치, 침강물 또는 부상물 제거장치, 수위조절장치 등으로 구성된다. 먼저 중력침강조에서 비중이 큰 것을 제거한 후 남아 있는 불용물을 용존공기부상조에서 분리하게 된다. 높은 압력으로 공기를 용해시킨 물을 중력침강조와 용존공기부상조 연결부위에 주입하여 처리하고자 하는 물이나 폐수와 혼합시키면 압력이 낮아져 작은 공기방울이 발생되면서 비중이 작은 불용물을 부상시켜 물 표면에 뜨게 한다. 따라서 비중이 큰 것과 작은 것을 모두 제거할 수 있다. 즉, 한 장치에 중력침강조와 용존공기분리조를 함께 설치하여 상호 보완하도록 한 것이다.In order to achieve the above object, the present invention provides a gravity sedimentation tank for removing a large specific gravity and a dissolved air flotation tank for removing a small specific gravity insoluble, an air dissolving device, a sediment or floating object removing device, and a water level control device. And the like. First, the large specific gravity is removed from the gravity settling tank, and the remaining insoluble matter is separated from the dissolved air flotation tank. When water dissolved in air at high pressure is injected into the gravity sedimentation tank and dissolved air flotation connection area and mixed with the water or wastewater to be treated, the pressure is lowered to generate a small air bubble, which induces a small specific insoluble matter to float on the water surface. Knit it. Therefore, both large and small specific gravity can be removed. That is, the gravity sedimentation tank and the dissolved air separation tank are installed together in one device to complement each other.

중력침강조 앞에 혼합장치를 설치하고 응집제를 주입하여 혼합한 후 중력침강조와 용존공기부상조를 이용하여 처리하는 경우에는 중력침강조가 응집조로서의 기능을 수행하게 되며, 오염물질 제거 효율을 향상시킬 수 있다.When the mixing device is installed in front of the gravity settling tank, the coagulant is injected and mixed, and the gravity settling tank and the dissolved air flotation tank are processed, the gravity settling tank functions as the flocculating tank and the pollutant removal efficiency is improved. You can.

도 1은 처리하고자 하는 물이나 폐수를 중력침강조 가운데에 유입하는 침전조의 측면도1 is a side view of a sedimentation tank for introducing water or wastewater to be treated into a gravity settling tank

도 2는 처리하고자 하는 물이나 폐수를 중력침강조 한쪽 측면에서 유입하는 침전조의 측면도Figure 2 is a side view of the sedimentation tank flowing water or wastewater to be treated from one side of the gravity settling tank

도 3은 방류수 포집장치를 변경하여 설치한 침전장치의 측면도Figure 3 is a side view of the sedimentation device installed by changing the effluent collection device

〈도면의 주요 부분에 대한 설명〉<Description of Main Parts of Drawing>

10. 부상슬러지 배출구 12. 높이 조정이 가능한 둑10. Sludge outlet 12. Weirs with height adjustment

14. 분리된 물 배출구 16. 방류박스14. Separated water outlet 16. Outlet box

18a. 연결파이프 18b. 방류수 터널18a. Connecting pipe 18b. Effluent tunnel

20. 혼합장치 22. 침전조간 연결터널20. Mixing device 22. Tunnel of sedimentation basin

24a. 방류수 포집장치 24b. 칸막이24a. Effluent collection unit 24b. bulkhead

26. 평판 또는 튜브식 침전기 28. 침전슬러지 배출구26. Flat or tube settler 28. Settling sludge outlet

30. 슬러지 호퍼 32. 칸막이30. Sludge Hopper 32. Partition

34. 중력침강조 36. 유입구34. Gravity Sink 36. Inlet

38. 공기용존장치 40. 연결파이프38. Air dissolving device 40. Connecting pipe

42. 용존공기부상조 44. 부상물 제거장치42. Dissolved air flotation 44. Device to remove the injuries

이하 첨부된 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

도 1은 처리하고자 하는 물이나 폐수를 중력침강조 가운데에 유입하도록 한 침전조의 측면도이다. 동 장치에서 중력침강조(34)는 하단부에, 용존공기부상조(42)는 중력침강조의 상단부에 각각 위치하며, 이들은 침전조간 연결터널(22)에 의해 연결되어 있다. 침전조간 연결터널(22)에는 혼합장치(20)가 설치되어 있다.1 is a side view of a sedimentation tank for introducing water or wastewater to be treated into a gravity settling tank. In the apparatus, the gravity settling tank 34 is located at the lower end, and the dissolved air flotation tank 42 is located at the upper end of the gravity settling tank, respectively, which are connected by the sedimentation tank connecting tunnel 22. The settling tank connecting tunnel 22 is provided with a mixing device 20.

중력침강조에서 칸막이(32)는 유입구(36) 가까이에 설치되어 있으며, 평판 또는 튜브식 침전기(26)가 중력침강조(34)내에 설치되어 있다. 슬러지 호퍼(30)와 침전된 슬러지 배출구(28)는 중력침강조 하단부에 각각 설치되어 있다.In the gravity sedimentation tank, the partition 32 is provided near the inlet 36, and a flat plate or tubular settler 26 is provided in the gravity sedimentation tank 34. The sludge hopper 30 and the settled sludge outlet 28 are respectively provided at the lower end of the gravity settling tank.

부상슬러지 배출구(10)는 용존공기부상조(42) 상단에, 방류수 포집장치(24a)는 용존공기부상조(42) 하단에 각각 설치되어 있다. 공기용존장치(38)에서 나온 공기는 침전지간 연결터널(22) 하부에 연결되고, 방류수 포집장치(24a)는 방류수 연결파이프(18a)를 통해 방류박스(16)와 연결된다. 방류박스에는 높이 조절이 가능한 둑(12)과 분리된 물 배출구(14)가 각각 설치되어 있다.The floated sludge outlet 10 is provided at the upper end of the dissolved air flotation tank 42, and the effluent collection device 24a is installed at the lower end of the dissolved air flotation tank 42, respectively. Air from the air dissolving device 38 is connected to the lower connection tunnel 22 between the sedimentation basin, and the discharge water collecting device 24a is connected to the discharge box 16 through the discharge water connecting pipe 18a. The discharge box is provided with a weir 12 and a water outlet 14 separated from each other.

도 2는 처리하고자 하는 물이나 폐수를 중력침강조 한쪽을 통해 유입하도록 한 침전조의 측면도이다. 도 1과는 달리 처리하고자 하는 물이나 폐수는 중력침강조 한쪽에 설치한 유입구를 통해 중력침강조에 유입된다.Figure 2 is a side view of the sedimentation tank to let the water or waste water to be treated through one of the gravity settling tank. Unlike FIG. 1, water or wastewater to be treated is introduced into the gravity settling tank through an inlet installed at one side of the gravity settling tank.

침전조간 연결터널(22)은 중력침강조(34)와 용존공기부상조(42)를 연결해주고 있으며, 부상물제거장치(44)는 용존공기부상조(42)의 상단에, 부상슬러지 배출구(10)는 침전조의 한쪽 측면에 각각 설치되어 있다.The sedimentation tank connecting tunnel 22 connects the gravity settling tank 34 and the dissolved air flotation tank 42, and the flotation removal device 44 is located at the top of the dissolved air flotation tank 42, and the discharge sludge outlet ( 10) are respectively installed on one side of the settling tank.

도 3은 방류수 포집장치를 변형하여 설치한 침전조의 측면도이다.칸막이(32)를 용존공기부상조(42)에 설치함으로써 용존공기부상조(42) 하단을 통해 방류수 터널(18b)이 형성되어 방류박스(16)에 연결된다. 또한, 방류박스(16)는 공기용존장치(38) 유입부에 연결된다.3 is a side view of the sedimentation tank installed by modifying the effluent collecting device. A partition 32 is installed in the dissolved air flotation tank 42 to form a discharge water tunnel 18b through the lower end of the dissolved air flotation tank 42 to discharge it. Is connected to the box 16. In addition, the discharge box 16 is connected to the inlet of the air dissolving device (38).

〈운전〉<driving>

도 1, 도 2, 또는 도 3에 나타난 것처럼 물이나 폐수는 먼저 유입구(36)를 통해 중력침강조(34)에 들어간다. 유입구 인근에 설치된 칸막이(32)가 유입수의 난류성을 감소시키며, 평판 또는 튜브식 침전기(26)는 고형물 제거를 향상시키는데 사용된다. 중력침강조(34)에서 침전된 비중이 큰 고형물이 제거된 후에도 비중이 작은 고형물이나 기름성분이 남아 있으며, 침전조간 연결터널(22)을 통해 용존공기부상조(42)에 들어가게 된다. 공기용존장치(38)를 이용하여 용존공기가 많게 한 후 연결파이프(40)를 이용하여 침전조간 연결터널(22) 하단부에 주입한다. 그러면 처리하고자 하는 물이나 폐수와 용존공기가 많은 물이 혼합장치(20)를 통과하면서 혼합된 후 용존공기부상조(42)에 들어가게 된다.As shown in FIG. 1, FIG. 2, or FIG. 3, water or wastewater first enters the gravity settling tank 34 through the inlet 36. Partitions 32 installed near the inlet reduce the turbulence of the influent and plate or tubular settler 26 is used to improve solids removal. Even after the large specific gravity precipitated in the gravity settling tank 34 is removed, the solid or oil component having a small specific gravity remains, and enters the dissolved air flotation tank 42 through the connection tunnel 22 between the precipitation tanks. After the dissolved air is increased by using the air dissolving device 38, it is injected to the lower end of the settling tank connecting tunnel 22 using the connecting pipe 40. Then, the water or waste water to be treated and the water having a lot of dissolved air are mixed while passing through the mixing device 20 and then enter the dissolved air flotation tank 42.

용존된 공기가 방출되면서 작은 공기방울이 나오고 공기방울 표면에 고형물이나 기름이 달라붙게 된다. 공기방울이 부상함에 따라 고형물이나 기름이 침강조 표면으로 부상하게 되고 불용물이 분리된 처리수는 하향으로 흘러 방류수 포집장치(24a)를 통해 방류박스(16)로 보내진다. 이때 도1과 도2에서는 연결파이프(18a)를 경유하는 반면, 도3에서는 칸막이(24b)에 의해 만들어진 방류수 터널(18b)을 경유하게 된다.As dissolved air is released, small bubbles emerge and solids or oil stick to the surface of the bubbles. As the air bubbles rise, the solids or oil rises to the surface of the settling tank, and the treated water from which the insolubles are separated flows downward and is sent to the discharge box 16 through the effluent collecting device 24a. 1 and 2 pass through the connecting pipe 18a, while in FIG. 3, the discharge pipe 18b is formed by the partition 24b.

처리된 물은 배출구(14)를 통해 방류되며, 둑(12)을 이용하여 용존공기부상조(42)의 수위를 조절하게 된다.The treated water is discharged through the discharge port 14, and the level of the dissolved air flotation tank 42 is adjusted by using the weir 12.

도1과 도2에서 방류수 포집장치(241)에서 포집한 물을 이용하여 공기용존장치(38)에서 고압으로 공기를 용해시킨 후 침전조간 연결터널(22)에서 공급하여 압력을 낮추게 된다.1 and 2 dissolve the air at high pressure in the air dissolving device 38 using the water collected by the effluent collecting device 241 in the settling tank connection tunnel 22 to lower the pressure.

용존공기부상조(42)에서 부상된 불용물은 부상슬러지 배출구(10)를 통해 흘러나가거나 부상불제거장치를 이용하여 제거한다.The insoluble matters that are injured in the dissolved air flotation tank 42 flow out through the flotation sludge outlet 10 or are removed using a flotation apparatus.

이상에서 상술한 바와 같이 본 발명은 중력침강조와 용존공기부상조를 통합형으로 설치하여 물이나 폐수에 함유된 고형물과 기름을 효과적으로 제거하는 등 많은 장점이 있다.As described above, the present invention has many advantages, such as installing the gravity settling tank and the dissolved air flotation tank in an integrated manner to effectively remove solids and oil contained in water or wastewater.

본 발명에서 비중이 큰 고형물은 쉽게 중력침강조에서 제거되며, 남아 있는 비중이 작은 고형물과 기름은 용존공기부상조에서 쉽게 제거할 수 있다. 기존의 중력침강장치나 용존공기부상장치와 비교할 때 처리에 소요되는 시간이나 체류시간을 많이 단축할 수 있어 작고 효율적인 것으로 만들 수 있다.In the present invention, the solid having a high specific gravity is easily removed from the gravity settling tank, and the remaining solid with a small specific gravity can be easily removed from the dissolved air flotation tank. Compared with the existing gravity settling device or dissolved air flotation device, the processing time or residence time can be shortened much, making it small and efficient.

특히 중력침강조에서 비중이 큰 고형물을 먼저 제거한 후에 상대적으로 비중이 적은 불용물을 용존공기부상조에서 제거함으로써 부상에 필요한 공기처리장치/불용물의 비율을 낮게 할 수 있어 기존의 용존공기부상법보다 용존공기가 많은 고압의 물을 만드는데 필요한 에너지를 줄일 수 있다.In particular, by removing the solids having a higher specific gravity from the gravity settling tank first and then removing the less specific insolubles from the dissolved air flotation tanks, the ratio of air treatment equipment / insolubles required for injury can be lowered. The energy required to make high pressure water with a lot of dissolved air can be reduced.

또한, 부상된 슬러지는 비중이 작은 불용물이 대부분이어서 용존공기부상조 표면에 보다 안정하게 떠 있을 수 있게 되여 기존의 용존공기부상처리장치보다 제거하기가 용이하다.In addition, the injured sludge is mostly insoluble matter having a small specific gravity, so that it can float more stably on the surface of the dissolved air flotation, which is easier to remove than the existing dissolved air flotation treatment apparatus.

Claims (1)

다음과 같이 구성된 물과 폐수처리용 불용물 분리장치Insoluble material separation device for water and wastewater treatment · 1개씩의 유입구, 분리된 물 배출구, 부상슬러지 배출구 및 침전슬러지 배출구를 설치Install one inlet, separate water outlet, flotation sludge outlet and settling sludge outlet · 중력침강을 통하여 불용성 물질을 제거하는 중력침강조 설치Gravity settling tank to remove insoluble materials through gravity settling · 중력침강후 남아 있는 불용성물질을 부상을 통하여 제거하는 용존공기부상조 설치Dissolved air flotation installation to remove insoluble substances remaining after gravity sedimentation through injury · 중력침강조와 용존공기부상조를 연결하는 침전조간 연결터널 설치Installation of sedimentation tank connecting tunnel connecting gravity sedimentation tank and dissolved air flotation tank · 용존공기부상조의 하부에 처리된 물을 포집하는 장치 설치Install a device to collect the treated water in the lower part of the dissolved air flotation tank · 공기를 용존하는 장치와 침전조간 연결터널에 공기를 많이 용존시킨 물을 적정하게 공급하는 장치 설치· Appropriate device to supply water that dissolved much air in connecting tunnel between air dissolving device and sedimentation tank · 용존공기부상조의 수위 조절장치Water level control device for dissolved air flotation 상기 분리장치에서 중력침강조에 유입되는 물 또는 폐수의 난류성을 줄이기 위한 칸막이의 설치Installation of a partition to reduce the turbulence of water or wastewater flowing into the gravity settling tank in the separator 상기 분리장치에서 중력침강조에 평판 또는 튜브식 침전기의 설치Installation of plate or tube settler in gravity settling tank in the separator 상기 분리장치에서 용존공기부상조에서 부상슬러지를 제거하기 위한 부상물제거장치의 설치Installation of a floating object removal device for removing the floating sludge from the dissolved air flotation tank in the separation device 상기 분리장치에서 침전조간 연결터널에 처리하고자 하는 물 또는 폐수와 공기를 많이 용존시키는 장치에서 나온 물을 혼합 사용하는 장치A device that uses a mixture of water or waste water to be treated in the sedimentation tank connecting tunnel in the separation device and a device that dissolves a lot of air 상기 분리장치에서 방류박스에 수위조절용 둑 설치Install a weir for adjusting the water level in the discharge box in the separation device 상기 분리장치에서 방류수 포집장치로 부터 물을 뽑아 공기용존장치에 공급The water is extracted from the effluent collecting device from the separator and supplied to the air dissolving device. 상기와 같이 구성된 분리장치를 이용하여 물과 폐수로 부터 불용물을 분리 처리하는 방법Method for separating and treating insoluble matter from water and wastewater by using the separator configured as described above
KR10-2002-0043434A 2002-07-23 2002-07-23 Apparatus for clarifying water and wastewater KR100464716B1 (en)

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CN105174365A (en) * 2015-04-28 2015-12-23 中国海洋石油总公司 Oily sewage treatment system
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KR101218623B1 (en) * 2010-12-17 2013-01-04 주식회사 라미나알앤디 Verticality guide plate form dissolved airfloatation system using water flow of water treating apparatus
KR101218619B1 (en) * 2010-12-17 2013-01-04 주식회사 라미나알앤디 Slope plate form precipitation tank using water folw of water treating apparatus
KR101446303B1 (en) * 2014-02-28 2014-10-06 케이팩코리아주식회사 Dissolved airfloatation system for treatment wastewater
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CN105174365A (en) * 2015-04-28 2015-12-23 中国海洋石油总公司 Oily sewage treatment system
CN105174365B (en) * 2015-04-28 2018-01-16 中国海洋石油总公司 A kind of oil-containing sewage treatment system
CN112960851A (en) * 2021-02-04 2021-06-15 云南沃润特环境工程有限公司 Efficient sewage sedimentation purification tank
CN112960851B (en) * 2021-02-04 2022-05-13 云南沃润特环境工程有限公司 Efficient sewage sedimentation purification tank

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