KR100695177B1 - Coagulation Agent Mixing Apparatus for Wastewater - Google Patents

Coagulation Agent Mixing Apparatus for Wastewater Download PDF

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KR100695177B1
KR100695177B1 KR1020050075978A KR20050075978A KR100695177B1 KR 100695177 B1 KR100695177 B1 KR 100695177B1 KR 1020050075978 A KR1020050075978 A KR 1020050075978A KR 20050075978 A KR20050075978 A KR 20050075978A KR 100695177 B1 KR100695177 B1 KR 100695177B1
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coagulant
high concentration
aeration tank
concentration wastewater
raw water
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KR20070021584A (en
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정호봉
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정호봉
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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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

본 발명은 고농도 폐수의 응결제 혼합장치에 관한 것으로, 본 발명에 의한 고농도 폐수의 응결제 혼합장치는 고농도 폐수처리 시스템의 폭기조에 응결제를 투입하도록 하여 혼합하도록 하는 고농도 폐수의 응결제 혼합장치에 있어서, 상기 폭기조와 연결되며 확관과 협관이 서로 교번되도록 배치하여 상기 확관과 협관을 거쳐 투입되는 원수와 응결제가 혼합 및 확산되도록 하여 상기 폭기조로 투입되도록 하는 것을 특징으로 한다. The present invention relates to a coagulant mixing apparatus of high concentration wastewater, and the coagulant mixing apparatus of high concentration wastewater according to the present invention is a coagulant mixing apparatus of a high concentration wastewater in which a coagulant is added to the aeration tank of the high concentration wastewater treatment system and mixed. It is characterized in that the expansion and the narrowing tube is arranged to alternate with each other so that the raw water and the coagulant introduced through the expansion and narrowing tube is mixed and diffused to be introduced into the aeration tank.

이에 따라, 본 발명은 폭기조 내로 투입되는 원수와 응결제의 혼합과정시 기포발생에 따른 끓어 넘치는 현상을 방지하게 됨으로써 소포제의 사용을 줄일 수 있을 뿐만 아니라, 끓어 넘치는 것을 제어하기 위한 감시자가 상시 상주할 필요가 없어 인력낭비를 줄일 수 있으며, 넘침현상으로 처리장 주변이 지저분하게 되는 것을 방지할 수 있는 효과가 있다. Accordingly, the present invention prevents boiling phenomenon caused by bubble generation during the mixing process of raw water and the coagulant introduced into the aeration tank, thereby reducing the use of the antifoaming agent, and also requires the monitor to always stay resident to control the boiling overflow. There is no need to reduce the waste of manpower, and there is an effect that can prevent the surrounding area from becoming dirty due to overflow phenomenon.

원수, 응결제, 혼합장치, 폭기조, 기포, 소포제 Raw water, coagulant, mixing device, aeration tank, bubble, defoamer

Description

고농도 폐수의 응결제 혼합장치{Coagulation Agent Mixing Apparatus for Wastewater}Coagulation Agent Mixing Apparatus for Wastewater

도 1은 본 발명에 의한 고농도 폐수의 응결제 혼합장치와 폭기조를 나타낸 사시도.1 is a perspective view showing a coagulant mixing device and aeration tank of high concentration wastewater according to the present invention.

도 2는 도 1의 내부구조를 나타낸 단면도.2 is a cross-sectional view showing the internal structure of FIG.

도 3은 본 발명에 의한 고농도 폐수의 응결제 혼합장치의 구조를 나타낸 도면. 3 is a view showing the structure of the coagulant mixing apparatus of high concentration wastewater according to the present invention.

**도면의 주요부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

1: 원수투입구 2, 3: 응결제투입구1: raw water inlet 2, 3: coagulant inlet

10: 폭기조 11: 교반익10: aeration tank 11: stirring blade

12: 교반축 13: 교반기12: stirring shaft 13: stirrer

20: 모터 21: 회전축20: motor 21: rotating shaft

30: 확관 40: 협관30: Expansion 40: Intubation

50: 드레인밸브50: drain valve

본 발명은 고농도 폐수의 응결제 혼합장치에 관한 것으로서, 보다 상세하게는 고농도 폐수에 함유된 질소 및 인을 응결시키도록 하는 응결제를 원수와 혼합하도록 하는 고농도 폐수의 응결제 혼합장치에 관한 것이다. The present invention relates to a coagulant mixing device of high concentration wastewater, and more particularly, to a coagulant mixing device of high concentration wastewater to mix a coagulant for coagulating nitrogen and phosphorus contained in high concentration wastewater with raw water.

주지하는 바와 같이, 고농도 폐수의 응결제 혼합장치는 폭기조 내로 투입되는 축산 폐수와 같이 고농도 질소 및 인을 함유하는 원수와 응결제를 투입하도록 하는 장치이다.As is known, the coagulant mixing device of high concentration wastewater is a device for introducing raw water and coagulant containing high concentration nitrogen and phosphorus, such as livestock wastewater introduced into the aeration tank.

종래에는 폭기조 내로 응결제를 투입하는 별도의 장치가 구비되어 있지 않고 일반적인 배관 등을 통하여 투입되도록 하였다. 더구나 폭기조는 상부가 개방되고 기포를 발생시키도록 하는 교반기에 의해 교반되게 되며 투입된 원수와 응결제가 서로 반응하게 되어 끓어 넘치는 현상이 발생되게 된다. 이에 따라 처리장 주변이 지저분하게 되어 미관을 해치게 되는 문제점이 있었다. 이러한 기포의 발생과 응집제의 반응에 의한 끓어 넘침을 방지하기 위하여 기포발생을 억제시키는 소포제를 사용하게 된다. 이러한 소포제는 반응시점에 따라 적당량을 사용하여야 하는데 대부분 과다하게 사용하게 되므로 소포제의 과다사용에 의한 운전비용이 많이 소요되는 문제점이 있었다. 또한, 이러한 끓어 넘침을 감시하는 감시자가 상시 상주하여야 하므로 인력낭비를 가져오게 되는 문제점이 있었다. Conventionally, a separate device for injecting a coagulant into the aeration tank is not provided, but is to be introduced through a general pipe. Moreover, the aeration tank is agitated by the stirrer to open the top and generate bubbles, and the raw water and the coagulant reacted with each other, causing a phenomenon of boiling over. As a result, the periphery of the treatment plant is dirty, which has a problem of harming aesthetics. In order to prevent boiling by the occurrence of such bubbles and the reaction of the flocculant to use the antifoaming agent to suppress the bubble generation. Such antifoaming agents should be used in an appropriate amount depending on the reaction time, and since most of them are used excessively, there is a problem in that the operating cost due to excessive use of the antifoaming agent is required. In addition, there is a problem that the workforce to monitor the boiling overflow must be always resident, bringing the waste of manpower.

본 발명은 상기의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목 적은 폭기조 내로 투입되는 응결제가 원수와의 반응을 억제시켜 기포발생에 의한 끓어 넘침을 방지하도록 하는 고농도 폐수의 응결제 혼합장치를 제공하는 것이다.The present invention has been made to solve the above problems, the object of the present invention is to provide a coagulant mixing device of high concentration wastewater to prevent the coagulant introduced into the aeration tank to suppress the reaction with the raw water to prevent boiling by the bubble generation. It is.

또한, 본 발명의 다른 목적은 소포제의 사용을 줄여 운전비용을 절감하도록 하는 고농도 폐수의 응결제 혼합장치를 제공하는 것이다.In addition, another object of the present invention is to provide a coagulant mixing apparatus of high concentration wastewater to reduce the use of antifoaming agent to reduce the operating cost.

아울러, 본 발명의 또 다른 목적은 상주하는 감시자가 필요없도록 하여 인력낭비를 줄일 수 있도록 하는 고농도 폐수의 응결제 혼합장치를 제공하는 것이다.In addition, another object of the present invention is to provide a high concentration of waste water coagulant mixing device to reduce the waste of manpower by eliminating the need for a resident supervisor.

상기의 목적을 달성하기 위한 본 발명의 고농도 폐수의 응결제 혼합장치는 고농도 폐수처리 시스템의 폭기조에 응결제를 투입하도록 하여 혼합하도록 하는 고농도 폐수의 응결제 혼합장치에 있어서, 상기 폭기조와 연결되며 확관과 협관이 서로 교번되도록 배치하여 상기 확관과 협관을 거쳐 투입되는 원수와 응결제가 혼합 및 확산되도록 하여 상기 폭기조로 투입되도록 하는 것을 특징으로 한다. The high concentration wastewater coagulant mixing device of the present invention for achieving the above object is a high concentration wastewater coagulant mixing device to mix the coagulant to the aeration tank of the high concentration wastewater treatment system, it is connected to the aeration tank and the expansion and narrowing pipe It is characterized in that the raw water and the coagulant introduced through the expansion pipe and the narrowing tube are mixed and diffused so as to be alternated with each other to be introduced into the aeration tank.

또한, 본 발명의 상기 확관 및 협관은 2개 내지 5개로 이루어져 교번되어 배치되는 것을 특징으로 한다. In addition, the expansion and narrowing tube of the present invention is characterized in that the two to five are arranged alternately.

또, 본 발명의 상기 확관의 직경은 80 내지 120mm 이며, 상기 협관의 직경은 40 내지 60mm이며, 각각의 길이는 1.5 내지 2.5m인 것을 특징으로 한다. In addition, the diameter of the expansion pipe of the present invention is 80 to 120mm, the diameter of the buccal tube is 40 to 60mm, each length is characterized in that 1.5 to 2.5m.

이하, 첨부된 도면을 참조로 본 발명의 고농도 폐수의 응결제 혼합장치를 상세히 설명하기로 한다.Hereinafter, the coagulant mixing apparatus of the high concentration wastewater of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 의한 고농도 폐수의 응결제 혼합장치와 폭기조를 나타낸 사시도이고, 도 2는 도 1의 내부구조를 나타낸 단면도이며, 도 3은 본 발명에 의한 고농도 폐수의 응결제 혼합장치의 구조를 나타낸 도면이다. 1 is a perspective view showing a coagulant mixing apparatus and aeration tank of high concentration wastewater according to the present invention, Figure 2 is a cross-sectional view showing the internal structure of Figure 1, Figure 3 shows the structure of a high concentration wastewater coagulant mixing apparatus according to the present invention Drawing.

도시된 바와 같이, 본 발명에 의한 고농도 폐수의 응결제 혼합장치는 교반익(11)이 교반축(12)에 구비된 교반기(13)가 내측에 구비된 폭기조(10)에 응결제 및 원수가 혼합 및 확산되도록 하는 확관(30) 및 협관(40)으로 구성된다. As shown, the coagulant mixing apparatus of the high concentration wastewater according to the present invention is mixed with the coagulant and the raw water in the aeration tank 10 is provided with an agitator 13 having an agitator blade 11 is provided on the stirring shaft 12 It consists of a dilated tube 30 and a buccal tube 40 to be diffused.

상기 폭기조(10)는 상부가 개방되고, 내부에 다수의 교반익(11)이 구비된 교반축(12)이 축설된 교반기(13)가 설치되어 있다. 상기 폭기조(10)에는 원수와 응결제가 혼합된 혼합액이 공급되어 교반되게 된다. 상기 교반축(12)은 폭기조(10)의 상부에 설치된 모터(20)의 회전축(21)의 단부와 결합되며 모터(20)의 회전축(21)에 의해 교반축(12)이 회전되어 교반익(11)에 의해 혼합되게 된다. 원수는 원수투입구(1)를 통하여 공급되게 되며, 응결제는 원수투입구(1)와 연결된 응결제투입구(2)를 통하여 공급되게 된다. 이때, 원수와 응결제는 확관(30)과 협관(40)을 거쳐 혼합 및 확산의 과정을 거친 후에 상기 폭기조(10)로 공급되게 된다. 또한, 응결제는 상기 폭기조(10) 내로 직접 투입되도록 하는 또하나의 응결제투입구(3)로 투입되도록 되어 있다. 원수투입구와 연결된 응결제투입구(2)를 통하여 과량의 응결제를 투입하게 되면 유동성이 저하되어 관을 막히게 할 수 있으므로 응결제투입구(2)를 통하여 유동성이 저하되지 않을 정도로 1차로 응결제를 투입하여 1차 응결되도록 하며 응결제투입구(3)를 통하여 2차로 응결제를 상기 폭기조(10) 내로 직접 투입하도록 하여 원수가 완전 응결되도록 하는 것이 바람직하다. 이때 사용되는 응결제는 제 2 염화철(FeCl2), 황산알루미늄(AlSO4), PAC에서 선택되는 하나 또는 이의 혼합액을 사용하는 것이 바람직하다. The aeration tank 10 is provided with an agitator 13 in which an upper portion thereof is opened and a stirring shaft 12 having a plurality of stirring blades 11 is installed therein. The aeration tank 10 is supplied with a mixed solution of raw water and a coagulant to be stirred. The stirring shaft 12 is coupled to the end of the rotating shaft 21 of the motor 20 installed on the aeration tank 10, the stirring shaft 12 is rotated by the rotating shaft 21 of the motor 20 stirring blades It is mixed by (11). Raw water is supplied through the raw water inlet (1), the coagulant is supplied through the coagulant inlet (2) connected to the raw water inlet (1). At this time, the raw water and the coagulant are supplied to the aeration tank 10 after the process of mixing and diffusion through the expansion pipe 30 and the narrowing pipe 40. In addition, the coagulant is to be introduced into another coagulant inlet (3) to be introduced directly into the aeration tank (10). If an excessive amount of coagulant is introduced through the coagulant inlet (2) connected to the raw water inlet, the fluidity may be blocked and the pipe may be clogged. It is preferable to directly inject the coagulant into the aeration tank 10 through the coagulant inlet 3 so that the raw water is completely condensed. In this case, it is preferable to use one or a mixture thereof selected from a second iron chloride (FeCl 2 ), aluminum sulfate (AlSO 4 ), and PAC.

상기 확관(30)과 협관(40)은 상기 원수투입구(1)와 연결되며 교번으로 배치되어 있다. 이때, 상기 확관(30)과 협관(40)의 개수는 각각 2개 내지 5개로 되어 혼합 및 확산의 과정을 반복하도록 되어 있으며, 각각 4개로 되는 것이 바람직하다. 상기 협관(40)을 통과하게 될 때는 유속이 빨라지게 되며 확관(30)을 통과하게 될 때는 와류 및 회돌이 현상이 발생하게 되어 혼합의 과정을 거치게 된다. 이와 같은 과정이 반복되면서 협관(40)과 확관(30)을 통과하게 된 원수와 응결제의 혼합액은 안정적인 혼합물을 얻을 수 있게 된다. 이렇게 안정화된 혼합물을 폭기조에 투입하게 되면 폭기조(10) 내에서는 응집제의 반응속도가 저해되게 되고 기포의 발생이 억제되게 되므로, 기포제를 적게 사용하여도 끓어 넘침을 방지할 수 있게 된다. 또한, 상기 확관(30)과 협관(40)을 반복하여 통과하면서 혼합과 확산의 과정을 미리 거친 안정화된 혼합물이 투입되게 되므로 상기 응결제투입구(3)로 폭기조(10) 내로 응결제를 직접 투입하게 되어도 끓어 넘침을 방지할 수 있게 된다. The expansion pipe 30 and the narrow tube 40 are connected to the raw water inlet 1 and are alternately arranged. At this time, the number of the expansion pipe 30 and the narrowing pipe 40 is 2 to 5 to repeat the process of mixing and diffusion, respectively, it is preferable to be four each. When passing through the buccal pipe 40, the flow rate is faster, and when passing through the expansion pipe 30, the vortex and loop phenomenon occurs to go through the process of mixing. As this process is repeated, the mixture of raw water and the coagulant passed through the buccal duct 40 and the dilatation tube 30 can obtain a stable mixture. When the stabilized mixture is introduced into the aeration tank, the reaction rate of the flocculant is inhibited in the aeration tank 10, and the generation of bubbles is suppressed, so that even if a small amount of the foaming agent is used, boiling can be prevented. In addition, since the stabilized mixture, which has undergone the process of mixing and diffusion, is introduced while repeatedly passing through the expansion pipe 30 and the buccal pipe 40, the coagulant may be directly introduced into the aeration tank 10 through the coagulant inlet 3. It will be able to prevent boiling.

이와 같이 본 발명은 원수와 응집제가 미리 확관(30)과 협관(40)을 반복하여 통과하게 되면서 혼합과 확산의 과정을 미리 거치게 되어 폭기조(10) 내에서의 기포생성을 억제되도록 함으로써 기포제를 소량 사용할 수 있도록 하여 처리비용을 줄일 수 있도록 하는 것이 가장 큰 특징이다. As described above, the present invention passes the expansion pipe 30 and the buccal pipe 40 repeatedly in advance so that the raw water and the coagulant are subjected to the mixing and diffusion process in advance, thereby suppressing the bubble generation in the aeration tank 10. The main feature is that it can be used to reduce the processing cost.

본 발명의 상기 확관(30)의 직경은 80 내지 120mm 이며, 상기 협관(40)의 직경은 40 내지 60mm이며, 각각의 길이는 1.5 내지 2.5m인 것이 바람직하다. 여기에서 확관(30) 및 협관(40)의 직경을 전술한 바와 같이 수치에만 한정하였으나, 응집 제와 원수의 양 및 농도에 따라 변경실시 가능함은 물론이다.The diameter of the expansion pipe 30 of the present invention is 80 to 120mm, the diameter of the narrow tube 40 is 40 to 60mm, each length is preferably 1.5 to 2.5m. Here, the diameters of the expansion pipe 30 and the narrowing pipe 40 are limited only to the numerical values as described above, but of course, the diameters of the expansion pipe 30 and the narrow pipe 40 may be changed depending on the amount and concentration of the flocculant and the raw water.

도 3은 본 발명에 의한 고농도 폐수의 응결제 혼합장치의 구조를 나타낸 도면으로서 상기 확관(30)과 상기 협관(40)을 교번되도록 배치함으로써 혼합과 확산이 되도록 함으로써 더욱 안정화된 혼합물을 얻을 수 있게 된다. 또한, 상기 협관(40)의 하부에는 관이 막히는 경우를 대비하여 드레인밸브(50)와 연결되어 배출될 수 있도록 되어 있다. 3 is a view showing the structure of the coagulant mixing apparatus of the high concentration wastewater according to the present invention, by mixing the expansion pipe 30 and the narrow tube 40 to be mixed and diffused to obtain a more stable mixture can be obtained. . In addition, the lower portion of the narrow pipe (40) is connected to the drain valve 50 to be discharged in case the pipe is blocked.

상술한 바와 같이 본 발명의 고농도 폐수의 응결제 혼합장치는 폭기조 내로 투입되는 원수와 응결제의 혼합과정시 기포발생에 따른 끓어 넘치는 현상을 방지하게 됨으로써 소포제의 사용을 줄일 수 있을 뿐만 아니라, 끓어 넘치는 것을 제어하기 위한 감시자가 상시 상주할 필요가 없어 인력낭비를 줄일 수 있으며, 넘침현상으로 처리장 주변이 지저분하게 되는 것을 방지할 수 있는 효과가 있다. As described above, the coagulant mixing device of the high concentration wastewater of the present invention prevents boiling phenomenon due to bubbles during the mixing process of raw water and the coagulant introduced into the aeration tank, thereby reducing the use of the antifoaming agent, and controlling the boiling overflow. There is no need for a supervisor to stay at all times to reduce the waste of manpower, and there is an effect to prevent the surrounding area from becoming dirty due to overflow.

Claims (3)

고농도 폐수처리 시스템의 폭기조에 응결제를 투입하도록 하여 혼합하도록 하는 고농도 폐수의 응결제 혼합장치에 있어서, In the high concentration wastewater coagulant mixing device to mix the coagulant into the aeration tank of the high concentration wastewater treatment system, 상기 폭기조와 연결되며 확관과 협관이 서로 교번되도록 배치하여 상기 확관과 협관을 거쳐 투입되는 원수와 응결제가 혼합 및 확산되도록 하여 상기 폭기조로 투입되도록 하는 것을 특징으로 하는 고농도 폐수의 응결제 혼합장치.The condenser mixing device of the high concentration wastewater, which is connected to the aeration tank and arranged so that the expansion pipe and the narrow pipe are alternately disposed so that the raw water and the coagulant introduced through the expansion pipe and the narrow pipe are mixed and diffused to be introduced into the aeration tank. 제 1 항에 있어서, The method of claim 1, 상기 확관 및 협관은 각각 2개 내지 5개로 이루어져 교번되어 배치되는 것을 특징으로 하는 고농도 폐수의 응결제 혼합장치.The expansion pipe and the narrowing pipe is composed of two to five, respectively, the coagulant mixing device of the high concentration wastewater, characterized in that arranged alternately. 제 2 항에 있어서, The method of claim 2, 상기 확관의 직경은 80 내지 120mm 이며, 상기 협관의 직경은 40 내지 60mm이며, 각각의 길이는 1.5 내지 2.5m인 것을 특징으로 하는 고농도 폐수의 응결제 혼합장치.The diameter of the expansion pipe is 80 to 120mm, the diameter of the narrowing pipe is 40 to 60mm, each length is a coagulant mixing apparatus of high concentration wastewater, characterized in that 1.5 to 2.5m.
KR1020050075978A 2005-08-19 2005-08-19 Coagulation Agent Mixing Apparatus for Wastewater KR100695177B1 (en)

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KR20000004970U (en) * 1998-08-20 2000-03-15 손동준 Ozone water mixing device
KR200224737Y1 (en) 2000-12-11 2001-05-15 주식회사삼안건설기술공사 chemical feed tank in mixing basin
KR20030059926A (en) * 2002-01-03 2003-07-12 이온섭 Pressurized tubular reactor
KR200351092Y1 (en) 2004-03-03 2004-05-17 주식회사 파루 medicine liquid mixing apparatus for spray device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000004970U (en) * 1998-08-20 2000-03-15 손동준 Ozone water mixing device
KR200224737Y1 (en) 2000-12-11 2001-05-15 주식회사삼안건설기술공사 chemical feed tank in mixing basin
KR20030059926A (en) * 2002-01-03 2003-07-12 이온섭 Pressurized tubular reactor
KR200351092Y1 (en) 2004-03-03 2004-05-17 주식회사 파루 medicine liquid mixing apparatus for spray device

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