KR100400190B1 - Waste Water Treatment Apparatus Using Electroflotation Reactor - Google Patents
Waste Water Treatment Apparatus Using Electroflotation Reactor Download PDFInfo
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- KR100400190B1 KR100400190B1 KR10-2001-0025398A KR20010025398A KR100400190B1 KR 100400190 B1 KR100400190 B1 KR 100400190B1 KR 20010025398 A KR20010025398 A KR 20010025398A KR 100400190 B1 KR100400190 B1 KR 100400190B1
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/4615—Time
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
본 발명은 전기부상 반응조 폐수처리장치에 관한 것으로, 상부에 설치된 처리수 공급관과 하부에 설치된 처리수 유출관; 부상 효과를 향상시키기 위하여 반응조 내부에 설치된 교반기; 전기부상 반응조를 중심으로 좌우에 설치된 처리수 유출부와 부상 응집물 포집부; 및 작은 부피에 넓은 표면적을 가지는 정사각의 4면체로 만든 전극판으로 이루어지며, 본 발명의 전기부상 반응조 폐수처리장치는 작은 부피에 넓은 표면적을 갖도록 정사각의 4면체로 만든 전극판을 적용하여 고액 분리능을 향상시킴으로써 전기분해를 이용한 폐수처리장치의 처리효율을 향상시키는 우수한 뛰어난 효과가 있다.The present invention relates to an electric flotation reactor wastewater treatment apparatus, comprising: a treated water supply pipe installed at an upper portion thereof and a treated water outlet pipe disposed at a lower portion thereof; An agitator installed inside the reactor to enhance the flotation effect; Treatment water outlet and floating aggregate collection unit installed on the left and right around the electric flotation reactor; And an electrode plate made of a square tetrahedron having a large surface area in a small volume, and the electric floatation reactor wastewater treatment apparatus of the present invention is capable of solid-liquid separation by applying an electrode plate made of square tetrahedron to have a large surface area in a small volume. There is an excellent excellent effect of improving the treatment efficiency of the wastewater treatment apparatus using electrolysis by improving the.
Description
본 발명은 전기부상 반응조 폐수처리장치에 관한 것이며, 더욱 상세하게는 본 발명은 최소의 부피를 갖는 전극판을 사용하여 최대의 처리 표면적으로 처리 효율을 극대화시키고, 음극에서 발생되는 수소가스를 이용하여 응집물을 부상시켜 고액 분리능을 향상시킨 전기부상을 이용한 폐수 처리 장치에 관한 것이다.The present invention relates to an electric flotation reactor wastewater treatment apparatus, and more particularly, the present invention uses the electrode plate having the minimum volume to maximize the treatment surface area, using hydrogen gas generated from the cathode The present invention relates to a wastewater treatment apparatus using an electric flotation which floats aggregates to improve solid-liquid separation.
최근 인구 증가와 산업 발달로 인한 수자원의 부족 상태와 수질 오염이 초래되고 있다. 이에 따른 대처 방안으로 하수 및 폐수의 배출 기준을 강화하여 중수도용으로 사용하고자 하나, 기존의 생물학적 처리 방법은 반응속도가 느려 부족한 생활 용수 및 공업 용수로 사용 가능한 중수도로서의 기능을 다하지 못하고 있으며, 처리 설비나 장치의 보안 및 대치가 요구되어 지고 있는 실정으로 별도의 고도 처리 시설을 필요로 하고 있다.Recently, there is a shortage of water resources and water pollution caused by population growth and industrial development. As a countermeasure against this, we intend to strengthen the discharge standard of sewage and wastewater and use it for heavy water use.However, the existing biological treatment methods do not function as heavy water that can be used for living water and industrial water, which have insufficient reaction speed. As security and replacement of devices are required, a separate advanced processing facility is required.
따라서, 중수도로서 사용 가능하도록 충분한 처리 속도와 효율을 가지는 처리 방법으로서 생물학적 처리 방법을 대신하여 물리·화학적 처리 방법이 중점적으로 연구되고 있으며 그 중에서 전기 분해를 이용한 처리 방법이 부각되고 있다.Therefore, as a treatment method having a sufficient treatment speed and efficiency to be used as water, the physical and chemical treatment methods have been intensively studied instead of biological treatment methods, and among them, treatment methods using electrolysis have been highlighted.
전기 분해를 이용한 처리 방법은 폐수에 전기를 가함으로써 양극에서 용출되어지는 금속이온과 음극에서 발생되어지는 수소가스에 의해 전기응집 (electrocoa gulation), 전기부상(electroflotation), 전기산화(electrooxidation) 등의 반응 기작을 통하여 폐수에 함유되어 있던 오염물질을 제거하여 처리수를 배출함과 동시에 발생된 부유물(scum)과 응집물은 배출관을 통하여 배출되어진다.In the treatment method using electrolysis, electrocoagulation, electroflotation, electrooxidation, etc., are carried out by applying metal to the waste water and the hydrogen ions generated from the cathode. By removing the pollutants contained in the wastewater through the reaction mechanism, the treated water is discharged and the accumulated scum and aggregates are discharged through the discharge pipe.
상기와 같은 전기분해를 이용한 처리방법 중에서도 본 발명에서는 조정조에서 가성소다나 무기응집제 및 전해질 등의 첨가를 통하여 폐수의 전도도를 조정한 처리수를 전기부상 처리하는 폐수처리장치에 관한 것이다.Among the treatment methods using the above-mentioned electrolysis, the present invention relates to a wastewater treatment apparatus for electric flotation treatment of treated water whose conductivity is adjusted by adding caustic soda, an inorganic coagulant, and an electrolyte in an adjustment tank.
기존의 반응조는 전기분해 방법 중 전기부상을 배제한 전기응집만에 의한 처리가 대부분을 차지하여 응집물의 형성 정도와 침전능이 처리효율을 크게 좌우하게 되는데, 폐수의 종류와 성상에 따른 공급되어지는 전류의 변화로 인해 음극에서 발생되는 수소가스가 많아지면 침전보다는 부상이 보다 활발하게 일어나 유출수에 미세한 응집물이 잔류하게 되어 처리효율을 저하시킨다.Conventional reactors are mostly treated by electroaggregation only, excluding electrical injuries, and the degree of formation and settling capacity of the aggregates greatly affect the treatment efficiency. When the hydrogen gas generated from the cathode increases due to the change, flotation occurs more actively than precipitation, and fine aggregates remain in the effluent, thereby reducing the treatment efficiency.
따라서, 본 발명의 목적은 전기부상을 이용한 반응조를 효과적으로 설계하여 고액 분리능을 향상시킴으로서 전기 분해를 이용한 폐수 처리 장치의 처리 효율을 향상시키는데 있으며, 본 발명의 다른 목적은 최소의 부피를 갖는 전극판을 사용하여 최대의 처리 표면적으로 처리 효율을 극대화하는 전기부상 반응조 폐수 처리장치를 제공하고자 하는 것이다.Therefore, an object of the present invention is to improve the treatment efficiency of the wastewater treatment apparatus using electrolysis by improving the solid-liquid resolution by effectively designing the reaction tank using the electric flotation, another object of the present invention is to provide an electrode plate having a minimum volume It is to provide an electric flotation reactor wastewater treatment apparatus to maximize the treatment efficiency by using the maximum treatment surface area.
본 발명의 상기 목적은 상부에 처리수 공급관과 하부에 처리수 유출관을 설치하여 하향흐름식을 선택하였으며, 반응조 내부에 혼합을 위한 교반기를 설치함으로써 부상 효과를 향상시켰고, 전기 부상 반응조를 중심으로 좌우에 처리수 유출부와 부상 응집물 포집부를 설치하였으며, 또한 정사각의 4면체로 만든 전극판은 작은 부피에 넓은 표면적을 가지는 전기부상을 이용한 폐수처리 반응조를 제공함으로써 달성하였다.The object of the present invention is to install the treatment water supply pipe at the top and the treatment water outlet pipe at the bottom to select the downward flow type, to improve the flotation effect by installing a stirrer for mixing inside the reaction tank, mainly in the electric flotation reactor The left and right treated water outlets and the flocculated collectors were installed, and an electrode plate made of square tetrahedrons was achieved by providing a wastewater treatment reactor using electric flotation having a small surface area and a large surface area.
이하, 본 발명의 구성 및 작용을 설명한다.Hereinafter, the configuration and operation of the present invention.
도 1은 본 발명에 따른 전기부상 반응조 폐수처리장치의 구성을 나타낸 요부 절개 사시도이다.Figure 1 is a perspective view of the main part cutaway showing the configuration of the electric flotation reactor wastewater treatment apparatus according to the present invention.
도 2는 본 발명에 따른 전기부상 반응조 폐수처리장치의 종단면도이다.2 is a longitudinal sectional view of the electric flotation reactor wastewater treatment apparatus according to the present invention.
도 3은 본 발명에 따른 전기부상 반응조의 측면도이다.3 is a side view of the electric flotation reactor according to the present invention.
도 4는 본 발명에 따른 전기부상 반응조 폐수처리장치의 전극판의 측면도와 상면도이다.Figure 4 is a side view and top view of the electrode plate of the electric flotation reactor wastewater treatment apparatus according to the present invention.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 처리수 공급관 2 : 교반기1: treated water supply pipe 2: stirrer
3 : 반응조 4 : 처리수 배출관3: reactor 4: treated water discharge pipe
5 : 응집물 배출관 6 : 전기 부상 반응조5: aggregate discharge pipe 6: electric flotation reactor
7 : 처리수 유츌부 8 : 응집물 포집부7: treated water flow unit 8: aggregate collection part
9 : 칸막이 10 : 전극판 지지대9: partition 10: electrode plate support
11 : 전극판11: electrode plate
본 발명에 따른 전기부상을 이용한 폐수처리 반응조는 상부에 설치된 처리수 공급관과 하부에 설치된 처리수 유출관; 부상 효과를 향상시키기 위하여 반응조 내부에 설치된 교반기; 전기부상 반응조를 중심으로 좌우에 설치된 처리수 유출부와 부상 응집물 포집부; 및 작은 부피에 넓은 표면적을 가지는 정사각의 4면체로 만든 전극판으로 이루어진다.The wastewater treatment reaction tank using the electric flotation according to the present invention includes a treatment water supply pipe installed at an upper portion and a treatment water outlet pipe installed at a lower portion thereof; An agitator installed inside the reactor to enhance the flotation effect; Treatment water outlet and floating aggregate collection unit installed on the left and right around the electric flotation reactor; And an electrode plate made of a tetrahedron having a large surface area at a small volume.
이하에는 첨부된 도면을 참조하여 본 발명의 전기부상 반응조 폐수처리장치에 대하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the electric flotation reactor wastewater treatment apparatus of the present invention.
도 1은 본 발명에 따른 전기부상 반응조 폐수처리장치의 구성을 나타낸 요부 절개 사시도이고, 도 2는 본 발명에 따른 전기부상 반응조 폐수처리장치의 종단면도이며, 도 3은 본 발명에 따른 전기부상 반응조의 측면도이며, 그리고 도 4는본 발명에 따른 전기부상 반응조 폐수처리장치의 전극판의 측면도와 상면도이다.1 is a perspective view of the main portion cutaway showing the configuration of the electric flotation reactor wastewater treatment apparatus according to the present invention, Figure 2 is a longitudinal cross-sectional view of the electric flotation reactor wastewater treatment apparatus according to the present invention, Figure 3 is an electric flotation reactor according to the present invention Figure 4 is a side view and a top view of the electrode plate of the electric flotation reactor wastewater treatment apparatus according to the present invention.
먼저, 후술하는 본 발명의 전기부상 반응조에서 보다 큰 효율을 가질 수 있도록 폐수를 전처리 공정인 조정조에서 가성소다나 무기응집제 및 전해질을 첨가하여 전도도를 조정하여 반응조에 공급한다.First, the caustic soda or inorganic coagulant and electrolyte are added to the reactor by adjusting the conductivity of the waste water in the control tank which is a pretreatment process so as to have greater efficiency in the electric flotation reactor of the present invention described below.
본 발명의 전기부상 반응조 폐수처리장치는 하향 흐름식 전기부상 반응조(6), 처리수가 외부로 배출될 수 있도록 전기부상 반응조(6)의 하부에 설치된 처리수 배출관(4), 상기 전기부상 반응조(6) 상부에 설치된 처리수 공급관(1), 전기 반응이 일어나는 동안 혼합을 하여 응집물의 부상 효과를 향상시키도록 반응조 내부에 설치된 교반기(2), 상기 전기부상 반응조(6)를 중심으로 좌우에 설치된 부상 응집물 포집부(8)와 처리수 유출부(7), 상기 전기부상 반응조(6)에서 완전히 부상되지 못하고 처리수 유출부(7)로 넘어온 응집물이 처리수 배출관(4)으로의 진입하는 것을 방지하도록 상기 처리수 배출관(4) 앞에 설치된 칸막이(9) 및 전기부상 반응조(6)의 하단부에 설치된 전극판(11)의 이탈착이 쉽도록 설계된 전극판 지지대(10)로 이루어진다.The electric flotation reactor wastewater treatment apparatus of the present invention includes a flow-through discharge vessel (4) installed in the lower portion of the electric flotation reaction tank (6) so that the flow-through electric flotation reaction tank (6), the treated water can be discharged to the outside, the electric flotation reactor ( 6) Treatment water supply pipe (1) installed on the upper side, agitator (2) installed inside the reaction tank to improve the flotation effect of the flocculation by mixing during the electrical reaction, the left and right installed around the electric flotation reactor (6) The flocculation of the flocculated aggregate collection part 8, the treated water outlet 7, and the flocculated aggregate which has not been completely floated in the electric flotation reaction tank 6 and flows to the treated water outlet 7 enters the treated water discharge pipe 4. Comprising the partition (9) installed in front of the treated water discharge pipe (4) and the electrode plate support 10 is designed to facilitate the detachment of the electrode plate (11) provided at the lower end of the electric floatation reaction tank (6).
상기 왼쪽의 부상 응집물 포집부(8)는 처리가 완료된 응집물을 저장ㆍ배출할 수 있도록 한다. 상기 전극판(11)은 작은부피에 넓은 표면적을 갖도록 정사각의 4면체로 하였으며, 상기 전극판(11)에는 전기가 통전되도록 외부에 설치된 정류기와 연결한다. 상기 전기부상 반응조(6) 내부에 설치되는 전극판(11)은 2∼3cm 사이의 간격으로 설치한다.The left flocculated aggregate collecting part 8 on the left side can store and discharge the aggregate which has been processed. The electrode plate 11 is a tetrahedron of square to have a large surface area in a small volume, and the electrode plate 11 is connected to a rectifier installed outside so as to conduct electricity. The electrode plates 11 installed in the electric floatation reactor 6 are installed at intervals of 2 to 3 cm.
상기와 같이 구성된 본 발명의 전기부상 반응조 폐수처리장치의 작용 관계를 보다 상세히 설명하면 다음과 같다. 먼저, 조정조에서 전처리를 거친 폐수는 반응조(3)의 상부에 설치된 처리수 공급관(1)을 통하여 전기부상 반응조(6)에 유입되어지며, 상기 유입된 폐수는 전기부상 반응조(6) 내부를 채운 후 전극판(11)의 전기 화학 반응에 의해 폐수 중의 부유물질을 응집시키거나 유기물질을 산화시킨다. 상기와 같은 반응에 의하여 형성된 응집물들은 음극에서 발생되는 수소가스와교반기(2)의 혼합 작용에 의하여 부상하여 응집물 포집부(8)에 포집되어지며, 처리수는 처리수 유출부(7)로 모이게 되는데, 이 때 처리수 배출관 앞에 칸막이(9)를 설치하여 처리수에 잔류할 수도 있는 미세응집물의 배출을 방지하도록 하였다.Referring to the operational relationship of the electric flotation reactor wastewater treatment apparatus of the present invention configured as described above in more detail. First, the wastewater that has been pretreated in the adjusting tank is introduced into the electric flotation reaction tank 6 through the treated water supply pipe 1 installed at the upper part of the reaction tank 3, and the introduced wastewater fills the inside of the electric flotation reaction tank 6. Afterwards, the suspended solids in the wastewater are aggregated or the organic substances are oxidized by the electrochemical reaction of the electrode plate 11. Agglomerates formed by the above reaction are raised by the mixing action of the hydrogen gas and the stirrer 2 generated in the cathode and collected in the aggregate collecting unit 8, and the treated water is collected in the treated water outlet 7. At this time, by installing a partition (9) in front of the treated water discharge pipe to prevent the discharge of fine aggregates that may remain in the treated water.
상기 전극판(11)의 설치시 고려하여야 하는 것은, 첫 번째로 전체 반응조의 부피에 대한 전극판(11)의 표면적이다. 이는 처리효율에 직접적으로 영향을 미치는 인자로서 대체적으로 반응조의 부피에 대한 전극판(11)의 표면적이 클수록 좋은 효율을 나타낸다. 두 번째로는 전극판(11) 사이의 간격(h)으로 전기화학반응의 효율을 높이기 위해서는 간격이 작을수록 좋으나, 반응조 내에서의 폐수의 흐름과 응집물의 부상을 방해하지 않는 범위 내에서 설치되어야 한다. 세 번째로는 전극판(11)의 재질로서 양극은 전기응집반응이 활발히 일어날 수 있도록 철, 알루미늄 및 스테인레스 스틸등과 같은 금속을 사용하고, 음극은 흑연을 사용하여 수소가스의 발생을 촉진시켜 전기부상 효과를 향상시킨다.What should be considered when installing the electrode plate 11 is, firstly, the surface area of the electrode plate 11 relative to the volume of the entire reactor. This is a factor that directly affects the treatment efficiency. In general, the larger the surface area of the electrode plate 11 with respect to the volume of the reactor, the better the efficiency. Secondly, in order to increase the efficiency of the electrochemical reaction with the interval h between the electrode plates 11, the smaller the interval is, the better, but it should be installed within a range that does not prevent the flow of wastewater and the flotation of aggregates in the reactor. do. Third, as the material of the electrode plate 11, the anode uses a metal such as iron, aluminum and stainless steel so that the electro-agglomeration reaction can be active, and the cathode uses graphite to promote the generation of hydrogen gas Improves the effect of injury.
본 발명의 전기부상 반응조 폐수처리장치는 전기부상 반응조(6) 내부에 설치되는 전극판(11)으로부터 반응이 일어나는 수리학적 처리 시간을 30분 내지 60분으로 하여 운전한다.The electric flotation reactor wastewater treatment apparatus of the present invention operates with a hydraulic treatment time of 30 minutes to 60 minutes in which the reaction takes place from the electrode plate 11 installed inside the electric flotation reactor 6.
이하, 본 발명의 구체적인 방법을 실시예를 들어 상세히 설명하고자 하지만 본 발명의 권리범위는 이들 실시예에만 한정되는 것은 아니다.Hereinafter, the specific method of the present invention will be described in detail with reference to Examples, but the scope of the present invention is not limited only to these Examples.
실시예 1Example 1
본 발명에 따른 전기부상 반응조 폐수처리장치를 이용하여 하수를 처리하였다. 상술한 바와 같이 본 발명에 의한 전기 부상을 이용한 폐수처리장치와 알루미늄 전극을 이용한 하수 처리결과 CODcr는 65.7%가 감소하는 결과를 얻었으며, SS는 83.5%가 감소하는 좋은 효율을 나타내었다. 그 결과를 표 1에 나타내었다.Sewage was treated using the electric flotation reactor wastewater treatment apparatus according to the present invention. As described above, as a result of the wastewater treatment apparatus using the electric flotation according to the present invention and the sewage treatment using the aluminum electrode, the COD cr was reduced to 65.7%, and the SS showed a good efficiency of 83.5%. The results are shown in Table 1.
상기에서 설명한 바와 같이, 본 발명은 상부에 처리수 공급관과 하부에 처리수 유출관을 설치하여 하향흐름식을 선택하고, 반응조 내부에 혼합을 위한 교반기를 설치함으로써 부상 효과를 향상시켰고, 전기 부상 반응조를 중심으로 좌우에 처리수 유출부와 부상 응집물 포집부를 설치하였으며, 또한 정사각의 4면체로 만든 전극판은 작은 부피에 넓은 표면적을 갖도록 하여 고액 분리능을 향상시킴으로써 전기 분해를 이용한 폐수 처리 장치의 처리 효율을 향상시키는 전기부상을 이용한 폐수처리 반응조로서 산업상 매우 유용한 발명인 것이다.As described above, the present invention is to install the treatment water supply pipe in the upper part and the treatment water outlet pipe in the lower part to select the downflow, and to improve the flotation effect by installing an agitator for mixing inside the reaction tank, the electric flotation reactor The treatment water outlet and the flocculation collection part are installed on the left and right side of the center. Also, the electrode plate made of square tetrahedron has a large surface area in a small volume to improve solid-liquid resolution, thereby treating the wastewater treatment device using electrolysis. It is a very useful invention in the industry as a wastewater treatment reactor using an electric flotation to improve the.
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| CN108821376A (en) * | 2018-07-10 | 2018-11-16 | 深圳市玖品空气净化科技有限公司 | A kind of air-flotation system for sewage treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980025459A (en) * | 1996-10-01 | 1998-07-15 | 박원훈 | A device for removing phosphorus and organic matter by electrochemical agglomeration |
| KR19980087671A (en) * | 1998-09-08 | 1998-12-05 | 최용관 | Sewage Treatment Equipment by Electrolysis |
| KR200177458Y1 (en) * | 1999-11-02 | 2000-04-15 | 주식회사삼안건설기술공사 | An electrolysis cesspool of the sewage treatment apparatus |
| KR100327802B1 (en) * | 1999-11-19 | 2002-03-15 | 유철진 | A sewage disposal plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980025459A (en) * | 1996-10-01 | 1998-07-15 | 박원훈 | A device for removing phosphorus and organic matter by electrochemical agglomeration |
| KR19980087671A (en) * | 1998-09-08 | 1998-12-05 | 최용관 | Sewage Treatment Equipment by Electrolysis |
| KR200177458Y1 (en) * | 1999-11-02 | 2000-04-15 | 주식회사삼안건설기술공사 | An electrolysis cesspool of the sewage treatment apparatus |
| KR100327802B1 (en) * | 1999-11-19 | 2002-03-15 | 유철진 | A sewage disposal plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821376A (en) * | 2018-07-10 | 2018-11-16 | 深圳市玖品空气净化科技有限公司 | A kind of air-flotation system for sewage treatment |
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