KR200401270Y1 - Treatment of Wastewater System - Google Patents
Treatment of Wastewater System Download PDFInfo
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- KR200401270Y1 KR200401270Y1 KR20-2005-0023874U KR20050023874U KR200401270Y1 KR 200401270 Y1 KR200401270 Y1 KR 200401270Y1 KR 20050023874 U KR20050023874 U KR 20050023874U KR 200401270 Y1 KR200401270 Y1 KR 200401270Y1
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
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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
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F7/00—Aeration of stretches of water
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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Abstract
본 고안은 고농도 폐수처리시스템에 관한 것으로, 본 고안에 의한 고농도 폐수처리시스템는 원수가 유입되어 저장되는 원수저류조와, 상기 원수저류조로부터 유입된 원수에 응결제와 고분자 응집제를 투입하여 제1고액분리기를 이용하여 고상과 액상으로 분리되도록 하는 제 1 고액분리조와, 분리된 원수 내에 포함된 질소를 탈질 및 질산화 시키는 각각의 하나 내지 세 개로 교번되도록 설치되는 탈질조 및 호기조와, 탈질 및 질산화된 원수에 제2고액분리기를 이용하여 응결제와 고분자 응집제를 투입하여 고상과 액상으로 분리되도록 하는 제 2 고액분리조와, 2차 고액분리된 원수의 잔존 BOD , COD 및 색도를 제거하는 간헐폭기조와, 상기 간헐폭기조에서 색도, 잔존 BOD 및 COD가 제거된 원수를 소정시간동안 침전시키는 침전조와, 침전후에 침전조의 상등액만을 통과시키도록 하여 여과 및 막분리시키는 여과/막분리조 및 여과 및 막분리된 상등액을 전기분해시켜 잔존하는 COD 및 질소를 제거시키는 전기분해조로 이루어지는 것을 특징으로 한다. The present invention relates to a high concentration wastewater treatment system, and the high concentration wastewater treatment system according to the present invention utilizes a first solid-liquid separator by adding a coagulant and a polymer coagulant to a raw water storage tank in which raw water is stored and stored therein, and raw water introduced from the raw water storage tank. A first solid-liquid separation tank for separating the solid phase and the liquid phase, a denitrification tank and an aerobic tank installed alternately with one to three for denitrifying and nitrifying nitrogen contained in the separated raw water, and a second in the denitrified and nitrified raw water. A second solid-liquid separation tank for separating a solid and a liquid by inputting a coagulant and a polymer flocculant using a solid-liquid separator, an intermittent aeration tank for removing residual BOD, COD, and color of the second solid-liquid separated raw water, and chromaticity in the intermittent aeration tank. Precipitation tank for precipitating raw water from which residual BOD and COD has been removed for a predetermined time, and And to pass only the solution was filtered and the film to be the filtration / membrane separation tank, and characterized in that formed twos electrolysis to remove the COD and nitrogen to decompose the membrane filtration and the electric separated residual supernatant removed.
이에 따라, 본 고안은 pH 저하를 방지하여 미생물이 생존할 수 있도록 함으로써 BOD, COD 등을 효율적으로 제거하여 원수의 농도를 저하되도록 하는 효과가 있다. Accordingly, the present invention has the effect of reducing the concentration of raw water by effectively removing the BOD, COD and the like by preventing the microbial survival by preventing the pH lowering.
Description
본 고안은 고농도 폐수처리시스템에 관한 것으로서, 보다 상세하게는 축산폐수와 같은 고농도 질소함유된 폐수내에 존재하는 질소를 질산화 및 탈질시키도록 하여 정수되도록 하는 고농도 폐수처리시스템에 관한 것이다. The present invention relates to a high concentration wastewater treatment system, and more particularly, to a high concentration wastewater treatment system for nitrifying and denitrifying nitrogen present in a high concentration nitrogen-containing wastewater such as livestock wastewater.
주지하는 바와 같이, 고농도 폐수처리시스템는 원수내에 존재하는 질소 등의 제거를 위하여 유기 탄소원을 투입하여 질소 등을 제거하는 방법이 일반적이다. 이러한 고농도 폐수처리시스템는 유기탄소원에 사용되는 과다한 약품투입으로 처리비용이 많이 소요되는 문제점이 있었다. As is well known, in the high concentration wastewater treatment system, a method of removing nitrogen and the like by inputting an organic carbon source for removing nitrogen and the like present in raw water is common. This high concentration wastewater treatment system has a problem that the treatment cost is high due to the excessive chemical input used in the organic carbon source.
이러한 문제점을 해결하기 위하여 황입자가 부착된 독립영양미생물을 이용하여 탈질화를 시키는 방법이 시도되었으나, 이러한 탈질 방법은 과도한 알카리도를 소모하여 pH 저하를 유발시킴으로써 미생물이 생존할 수 없게 되며 결국 탈질효과가 저하되게 되며 이에 따라 BOD, COD 등을 제거하지 못하게 되어 전공정에 악영양을 미치게 되는 단점이 있었다.In order to solve this problem, a method of denitrification using an autotrophic microorganism to which sulfur particles are attached has been attempted, but this denitrification method consumes excessive alkalinity and causes a decrease in pH so that microorganisms cannot survive and thus denitrification effect. As a result, it was not possible to remove BOD, COD, etc. and thus had a negative effect on the entire process.
본 고안은 상기의 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 pH 저하를 방지하여 미생물이 생존할 수 있도록 함으로써 BOD, COD 등을 효율적으로 제거할 수 있도록 하는 고농도 폐수처리시스템를 제공하는 것이다.The present invention was devised to solve the above problems, and an object of the present invention is to provide a high concentration wastewater treatment system that can efficiently remove BOD, COD, etc. by preventing microorganisms to survive by lowering the pH. .
상기의 목적을 달성하기 위한 본 고안의 고농도 폐수처리시스템는 원수가 유입되어 저장되는 원수저류조와, 상기 원수저류조로부터 유입된 원수에 응결제와 고분자 응집제를 투입하여 제1고액분리기를 이용하여 고상과 액상으로 분리되도록 하는 제 1 고액분리조와, 분리된 원수의 액상이 투입되며 분리된 액상의 원수 내에 포함된 유기물을 탈질시키며 원수 내에 포함된 질소를 질산화시키는 각각의 하나 내지 세 개로 교번되도록 설치되는 탈질조 및 호기조와, 탈질 및 질산화된 원수에 응결제와 고분자 응집제를 투입하여 제2고액분리기를 이용하여 고상과 액상으로 분리되도록 하는 제 2 고액분리조와, 2차 고액분리된 원수의 색도, 잔존 BOD 및 COD를 제거하는 간헐폭기조와, 상기 간헐폭기조에서 색도, 잔존 BOD 및 COD가 제거된 원수를 소정시간동안 침전시키는 침전조와, 침전후에 침전조의 상등액만을 통과시키도록 하여 여과 및 막분리시키는 여과/막분리조 및 여과 및 막분리된 상등액을 전기분해시켜 잔존하는 COD 및 질소를 제거시키는 전기분해조로 이루어지는 것을 특징으로 한다. The high concentration wastewater treatment system of the present invention for achieving the above object is a raw water storage tank into which raw water is introduced and stored, and a coagulant and a polymer flocculant are introduced into the raw water introduced from the raw water storage tank into solid and liquid phases using a first solid-liquid separator. A denitrification tank installed to separate the first solid-liquid separation tank, and the liquid phase of the separated raw water, and denitrifying the organic matter contained in the separated liquid raw water and alternating with each of one to three nitrifying the nitrogen contained in the raw water; and The second solid-liquid separation tank for introducing a coagulant and a polymer flocculant into the aerobic tank, the denitrified and nitrified raw water, and separating it into a solid phase and a liquid phase using a second solid-liquid separator, The intermittent aeration tank to be removed and the raw water from which chromaticity, residual BOD and COD were removed from the intermittent aeration tank for a predetermined time The electrolysis tank comprises a settling tank, a filtration / membrane separation tank for filtering and membrane separation by passing only the supernatant of the settling tank after precipitation, and an electrolysis tank for removing residual COD and nitrogen by electrolysis of the filtered and membrane separated supernatant. It is done.
또한, 본 고안은 상기 제 1 고액분리조 및 상기 제 2 고액분리조에 사용되는 응결제는 염화 제2철(FeCl2), 황산알루미늄(AlSO4), PAC에서 선택되는 하나이상으로 되는 것을 특징으로 한다.In addition, the present invention is characterized in that the coagulant used in the first solid-liquid separation tank and the second solid-liquid separation tank is at least one selected from ferric chloride (FeCl 2 ), aluminum sulfate (AlSO 4 ), PAC. .
아울러, 본 고안의 상기 간헐폭기조는 색도제거를 위해 분말활성탄 또는 입상활성탄이 더 구비되는 것을 특징으로 한다. In addition, the intermittent aeration tank of the present invention is characterized in that the powder activated carbon or granular activated carbon is further provided to remove the color.
이하, 첨부된 도면을 참조로 본 고안의 고농도 폐수처리시스템를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the high concentration wastewater treatment system of the present invention.
도 1은 본 고안에 의한 고농도 폐수처리시스템의 폐수처리공정을 나타낸 흐름도이다. 1 is a flow chart showing a wastewater treatment process of a high concentration wastewater treatment system according to the present invention.
도시된 바와 같이, 본 고안에 의한 고농도 폐수처리시스템는 원수가 유입되어 저장되는 원수저류조(10)와, 상기 원수저류조(10)로부터 유입된 원수를 제1고액분리기를 이용하여 고상과 액상으로 분리되도록 하는 제 1 고액분리조(20)와, 분리된 원수의 액상 내에 포함된 유기물을 탈질시키며 질소를 질산화시키는 탈질조(31,33) 및 호기조(32,34)와, 탈질 및 질산화된 원수를 제2고액분리기를 이용하여 고상과 액상으로 분리되도록 하는 제 2 고액분리조(40)와, 2차 고액 분리된 원수를 폭기시키는 간헐폭기조(50)와, 폭기된 원수를 침전시키는 침전조(60)와, 침전조의 상등액만을 통과시켜 여과 및 막분리시키는 여과/막분리조(70) 및 여과 및 막분리된 원수를 전기분해시켜 전기분해조(80)로 구성된다. As shown, the high concentration wastewater treatment system according to the present invention is to separate the raw water introduced from the raw water storage tank 10 and the raw water introduced from the raw water storage tank 10 into a solid phase and a liquid phase using a first solid-liquid separator. The first solid-liquid separation tank 20, denitrification tanks 31 and 33 and aerobic tanks 32 and 34 for nitrifying nitrogen and denitrifying organic substances contained in the liquid phase of the separated raw water, and denitrification and nitrified raw water A second solid-liquid separation tank 40 for separating the solid and liquid using a two-liquid separator, an intermittent aeration tank 50 for aeration of the second solid-liquid separated raw water, and a settling tank 60 for precipitating the aerated raw water; , Filtration / membrane separation tank 70 for filtration and membrane separation by passing only the supernatant of the settling tank and the electrolysis tank 80 by electrolyzing the filtered and membrane separated raw water.
상기 원수저류조(10)는 원수가 유입되어 저장되게 된다. 본 고안의 고농도 폐수 처리시스템에 의해 정화되는 원수는 특히 축산 폐수와 같이 고농도 질소 및 인을 함유한다.The raw water storage tank 10 is stored in the raw water is introduced. The raw water purified by the high concentration wastewater treatment system of the present invention contains high concentrations of nitrogen and phosphorus, in particular, such as livestock wastewater.
상기 원수저류조(10) 내에 유입되어 저장된 원수는 고상과 액상으로 분리되어 상기 제 1 고액분리조(20)로 이동되게 된다. Raw water introduced into and stored in the raw water storage tank 10 is separated into a solid phase and a liquid phase and moved to the first solid-liquid separation tank 20.
상기 제 1 고액분리조(20)는 상기 원수저류조(10)로부터 유입된 원수에 응결제와 고분자 응집제를 투입하여 제1고액분리기를 이용하여 고상과 액상으로 분리된 액상을 탈질조(31,33) 및 호기조(32,34)에 일정량씩 투입하는 역할을 한다. 이때 사용되는 응결제는 염화 제2철(FeCl2), 황산알루미늄(AlSO4), PAC에서 선택되는 하나 또는 이상의 혼합액을 사용하게 된다.The first solid-liquid separation tank 20 is a denitrification tank (31, 33) by injecting a coagulant and a polymer flocculant into the raw water introduced from the raw water storage tank (10) using a first solid-liquid separator. And it serves to inject a predetermined amount into the aerobic tank (32, 34). At this time, the coagulant used is one or more mixtures selected from ferric chloride (FeCl 2 ), aluminum sulfate (AlSO 4 ), PAC.
상기 분리된 원수의 액상은 제 1 고액분리조(20)에서 각각 탈질조(31,33) 및 호기조(32,34)로 일정량 투입되게 된다. The liquid phase of the separated raw water is introduced into the denitrification tanks 31 and 33 and the aerobic tanks 32 and 34 in the first solid-liquid separation tank 20, respectively.
상기 탈질조(31,33)는 원수 내에 포함된 유기물을 탈질시키게 되며, 상기 호기조(32,34)는 원수 내에 포함된 질소를 질산화시키는 역할을 한다. 이때, 상기 탈질조(31,33) 및 호기조(32,34)는 두 개 또는 세 개로 되어 교번되도록 설치되게 된다. 도면에서는 탈질조(31,33) 및 호기조(32,34)가 두개로 되어 교번되도록 설치된 상태를 나타낸다. 호기조(32,34)들을 거친 질산화물은 다시 첫 번째의 탈질조(31)로 투입되도록 하여 추가로 탈질시키도록 하는 것이 바람직하다. 또한, 제 1 고액분리조(20)로부터 분리된 액상의 농도가 낮은 경우에는 두 번째의 탈질조(33)로 투입되도록 하는 것이 바람직하다. 이때, 발생된 질소가스는 대기중으로 방출되게 된다. The denitrification tanks 31 and 33 denitrate the organic substances contained in the raw water, and the aerobic tanks 32 and 34 serve to nitrify the nitrogen contained in the raw water. At this time, the denitrification tanks 31 and 33 and the aerobic tanks 32 and 34 are installed to be alternating into two or three. In the figure, the denitrification tanks 31 and 33 and the aerobic tanks 32 and 34 are shown as two and alternately installed. Nitrogen oxide having passed through the aerobic tanks (32, 34) is preferably added to the first denitrification tank (31) to further denitrification. In addition, when the concentration of the liquid phase separated from the first solid-liquid separation tank 20 is low, it is preferable to be introduced into the second denitrification tank 33. At this time, the generated nitrogen gas is released into the atmosphere.
상기 탈질조(31,33) 및 호기조(32,34)에서 탈질 및 질산화된 원수는 제 2 고액분리조(40)로 이송되게 된다. The denitrified and nitrified raw water in the denitrification tanks 31 and 33 and the aerobic tanks 32 and 34 is transferred to the second solid-liquid separation tank 40.
상기 제 2 고액분리조(40)는 상기 제 1 고액분리조(20)와 마찬가지로 응결제와 고분자 응집제를 투입하여 고액분리기를 이용하여 고상과 액상으로 분리하여 액상을 간헐폭기조(50)으로 일정량 투입하는 역할을 하게 된다. 상기 제 2 고액분리조(40)에 의해 분리된 액상은 간헐폭기조(50)로 이송되어 폭기되게 된다. Like the first solid-liquid separation tank 20, the second solid-liquid separation tank 40 is used to input a coagulant and a polymer flocculant to separate the solid and liquid phases using a solid-liquid separator to inject a predetermined amount of liquid into the intermittent aeration tank 50. It will play a role. The liquid phase separated by the second solid-liquid separation tank 40 is transferred to the intermittent aeration tank 50 to be aerated.
또한, 이때 사용되는 고액분리기는 개조한 벨트프레스, 가압부상조를 이용하는 것이 바람직하다.In addition, the solid-liquid separator used at this time, it is preferable to use a modified belt press, pressurization tank.
상기 간헐폭기조(50)는 2차 고액분리된 액상의 원수의 색도, 잔존 BOD 및 COD를 제거하는 역할을 하게 된다. 상기 간헐폭기조(50)에서 색도, 잔존 BOD 및 COD가 제거된 원수는 침전조(60)로 이동되어 소정시간동안 침전되게 된다. 이때, 상기 간헐폭기조(50)는 색도제거를 위해 분말활성탄 또는 입상활성탄을 이용하는 것이 바람직하다. The intermittent aeration tank 50 serves to remove the chromaticity, residual BOD and COD of the raw water of the second liquid-liquid separated liquid. In the intermittent aeration tank 50, raw water from which chromaticity, residual BOD, and COD have been removed is moved to the settling tank 60 to be settled for a predetermined time. At this time, the intermittent aeration tank 50, it is preferable to use powder activated carbon or granular activated carbon to remove the color.
침전조(60)에서 침전된 상등액은 상기 여과/막분리조(70)로 이송되어 여과 및 막분리되게 된다. 이때, 상기 침전조 내의 침전물은 상기 간헐폭기조(50) 또는 탈질조로 재투입되도록 하여 색도, 잔존 BOD 및 COD가 다시 제거되도록 하는 것이 바람직하다. 또한, 침전조(60)는 첫 번째 탈질조(31)로 슬러지를 이송시키도록 되어 있다. The supernatant precipitated in the settling tank 60 is transferred to the filtration / membrane separation tank 70 to be filtered and membrane separated. At this time, the precipitate in the settling tank is preferably re-introduced into the intermittent aeration tank 50 or the denitrification tank so that the chromaticity, residual BOD and COD are removed again. In addition, the settling tank 60 is configured to transfer the sludge to the first denitrification tank 31.
상기 여과/막분리조(70)에서 여과 및 막분리된 상등액은 전기분해조(80)로 이송되어 전기분해되어 잔존하는 COD 및 질소를 제거시켜 정화된 정수로 되어 방류되게 된다. The supernatant filtered and membrane-separated in the filtration / membrane separation tank 70 is transferred to the electrolysis tank 80 to be electrolyzed to remove residual COD and nitrogen and discharged into purified water.
상술한 바와 같이 본 고안의 고농도 폐수처리시스템는 pH 저하를 방지하여 미생물이 생존할 수 있도록 함으로써 BOD, COD 등을 효율적으로 제거할 수 있는 효과가 있다. As described above, the high concentration wastewater treatment system of the present invention has the effect of effectively removing BOD, COD, etc. by preventing the microbial survival by preventing the pH drop.
도 1은 본 고안에 의한 고농도 폐수처리시스템의 폐수처리공정을 나타낸 흐름도.1 is a flow chart showing a wastewater treatment process of a high concentration wastewater treatment system according to the present invention.
**도면의 주요부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **
10: 원수저류조 20: 제 1 고액분리조10: raw water storage tank 20: first solid-liquid separation tank
31,33: 탈질조 32,34: 호기조31,33: denitrification tank 32,34: aerobic tank
40: 제 2 고액분리조 50: 간헐폭기조40: second solid-liquid separation tank 50: intermittent aeration tank
60: 침전조 70: 여과/막분리조60: settling tank 70: filtration / membrane separation tank
80: 전기분해조80: electrolysis tank
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KR100948197B1 (en) * | 2009-09-07 | 2010-03-16 | 주식회사 대진환경산업 | Advanced treating apparatus for removing nitrogen and phosphorus using intermitted aeration, membrane, electrolysis apparatus, advanced method of water treatment using the same |
CN107434332A (en) * | 2017-07-03 | 2017-12-05 | 安徽国能亿盛环保科技有限公司 | A kind of technique for treating industrial wastewater |
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KR100948197B1 (en) * | 2009-09-07 | 2010-03-16 | 주식회사 대진환경산업 | Advanced treating apparatus for removing nitrogen and phosphorus using intermitted aeration, membrane, electrolysis apparatus, advanced method of water treatment using the same |
CN107434332A (en) * | 2017-07-03 | 2017-12-05 | 安徽国能亿盛环保科技有限公司 | A kind of technique for treating industrial wastewater |
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