KR200378576Y1 - Biofilm denitrification filter system - Google Patents

Biofilm denitrification filter system Download PDF

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KR200378576Y1
KR200378576Y1 KR20-2004-0036671U KR20040036671U KR200378576Y1 KR 200378576 Y1 KR200378576 Y1 KR 200378576Y1 KR 20040036671 U KR20040036671 U KR 20040036671U KR 200378576 Y1 KR200378576 Y1 KR 200378576Y1
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denitrification
tank
wastewater
organic carbon
carbon source
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KR20-2004-0036671U
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Korean (ko)
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원주경
김윤섭
서시원
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주식회사 앤써브
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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
    • C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
    • 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
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/104—Granular carriers
    • 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
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/06—Nutrients for stimulating the growth of microorganisms
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

본 고안은 아질산성 질소나 질산성 질소 등의 질산염형태로 배출되는 폐수에 적용하기 위한 생물막 탈질 여과장치에 관한 것으로, 공급펌프(102a)의 구동으로 공급배관(101a)을 통해 폐수를 공급하는 집수조(110)와; 약품공급펌프(102b)의 구동으로 약품공급배관(101b)을 통해 탈질세균의 에너지원으로 사용되는 유기탄소원을 공급하는 유기탄소원 저장조(120)와; 상기 집수조(110) 및 유기탄소원 저장조(120)에서 공급되는 폐수 및 유기탄소원을 혼합 처리하는 혼합기(130)와; 상기 혼합기(130)를 통과한 폐수를 공급받되 모래여재 및 이에 부착 성장하는 탈질세균의 충진을 통해 무산소지역을 형성시켜 공급되는 폐수로부터 질산염의 탈질산화에 의한 질소가스(N2)의 배출을 수행되게 하며, 고액 분리를 통한 상등수는 처리수로서 배출되게 한 탈질조(140)와; 상기 혼합기(130)를 통과한 폐수를 상기 탈질조(140) 내에 균등하게 분배/공급하도록 한 분배기(150)와; 상기 탈질조(140)에 내장되며 하측으로 공기압축기(170)를 연결하여 상기 탈질조(140) 내의 하층에 퇴적되는 더러운 협작물(모래+잉여탈질미생물+부유고형물)을 상향 이송시키되 협작물 중에서 모래는 처리수를 이용하여 세정한 후 탈질조(140) 내로 재투입되게 하고 나머지는 상기 집수조(110)로 보내는 협작물 이송관(160)으로 구성되는 것을 특징으로 한다.The present invention relates to a biofilm denitrification filtration apparatus for applying to wastewater discharged in the form of nitrates such as nitrite nitrogen or nitrate nitrogen, and is a collection tank for supplying wastewater through a supply pipe 101a by driving a supply pump 102a. 110; An organic carbon source storage tank 120 for supplying an organic carbon source used as an energy source of denitrification bacteria through the chemical supply pipe 101b by driving the chemical supply pump 102b; A mixer 130 for mixing and treating the wastewater and the organic carbon source supplied from the sump tank 110 and the organic carbon source storage tank 120; The wastewater that has passed through the mixer 130 is supplied, but the nitrogen gas (N 2 ) is discharged by the denitrification of nitrate from the supplied wastewater by forming an anoxic region through the filling of sand media and the denitrification bacteria growing therein. Denitrification tank 140, the supernatant through the solid-liquid separation is discharged as treated water; A distributor (150) for equally distributing / supplying the wastewater that has passed through the mixer (130) into the denitrification tank (140); Built in the denitrification tank 140 and connected to the air compressor 170 to the lower side to transport the dirty condensate (sand + surplus denitrification microorganisms + floating solids) deposited on the lower layer in the denitrification tank 140, but in The sand is washed with the treated water and then re-introduced into the denitrification tank 140, and the rest is composed of a narrowing material conveying pipe 160 which is sent to the collection tank 110.

Description

생물막 탈질 여과장치{BIOFILM DENITRIFICATION FILTER SYSTEM} Biofilm denitrification filtration device {BIOFILM DENITRIFICATION FILTER SYSTEM}

본 고안은 아질산성 질소(NO2-―N)나 질산성 질소(NO3-―N)의 질산염 형태로 배출되는 폐수에서 질소성분 제거를 위한 생물막 탈질 여과장치에 관한 것으로, 더욱 상세하게는 질소처리의 부하율을 크게 향상시킬 수 있도록 하고 장치의 설치시 소요면적을 최소화시킬 수 있도록 함과 동시에 장치의 운전효율을 최대화할 수 있도록 하며 폐수로부터 질소 제거효율 및 부유고형물 제거효율을 향상시킬 수 있도록 한 생물막 탈질 여과장치에 관한 것이다.The present invention relates to a biofilm denitrification filtration apparatus for removing nitrogen components from wastewater discharged in the form of nitrates of nitrite nitrogen (NO 2 -N) or nitrate nitrogen (NO 3 -N). It is possible to greatly improve the loading rate of treatment, to minimize the area required for installation of the device, to maximize the operating efficiency of the device, and to improve nitrogen removal efficiency and suspended solids removal efficiency from wastewater. It relates to a biofilm denitrification filtration device.

일반적으로 폐수는 물에 액체성 또는 고체성의 수질오염물질이 혼입되어 그대로 사용할 수 없는 물을 의미하며, 특히 산업폐수는 사업자가 소정의 정화시설을 갖추어 정화시킨 후에 배출하도록 환경보전법으로 규제하고 있는데, 이러한 산업폐수는 사용원료나 생산공정 등에 따라 배출되는 수질이 서로 상이하고 그에 따른 유기물 및 질소농도 또한 상당한 차이를 나타내고 있다.In general, wastewater refers to water that can not be used as it contains liquid or solid water pollutants.In particular, industrial wastewater is regulated by the Environmental Conservation Act to be discharged after a company has a predetermined purification facility to purify it. The industrial wastewater has different water quality depending on the raw materials or production process, and the organic and nitrogen concentrations also show significant differences.

폐수 내의 질소성분은 크게 유기질소와 무기질소로 대별되는데, 이 유기질소(organic-N)와 무기질소를 합하여 총질소(T-N)라 하고, 상기 무기질소에는 암모니아성 질소(NH4+―N)와 아질산성 질소(NO2-―N) 및 질산성 질소(NO3-―N)가 존재한다.Nitrogen components in the wastewater are largely classified into organic nitrogen and inorganic nitrogen. The organic nitrogen (organic-N) and inorganic nitrogen are called total nitrogen (TN), and the inorganic nitrogen includes ammonia nitrogen (NH 4 + -N) and Nitrous acid nitrogen (NO 2 ——N) and nitric acid nitrogen (NO 3 ——N) are present.

이러한 질소성분의 생물학적 제거를 위한 방식으로는 미생물 성장시 질소(NH4+―N)를 세포합성에 이용하도록 함으로써 제거되게 하는 박테리아 동화작용방식과, 호기성(oxic) 조건하에서 질산화세균(nitrosomonas, nitrobactor)에 의해 유기성/암모니아성 질소를 질산성 질소(NOX)로 변환(질산화반응)시킨 후 용존산소가 없는 무산소(anoxic) 상태에서 탈질세균(bacillus, pseudomonas, micrococcus 등)에 의해 질소가스로 전환(탈질산화반응)시켜 대기중으로 배출되게 하는 질산화/탈질방식이 있다. 이때, 탈질산화반응에는 이에 관여하는 탈질세균의 에너지원으로 유기탄소원이 필요하게 된다.Methods for biological removal of such nitrogen components include bacterial assimilation, which allows nitrogen (NH 4 +-N) to be removed during microbial growth, and by nitrosomonas and nitrobactor under aerobic conditions. Organic / ammonia nitrogen to nitrate nitrogen (NO x ), and then to nitrogen gas by denitrifying bacteria (bacillus, pseudomonas, micrococcus, etc.) in the absence of oxygen. There is a nitrification / denitrification method which releases to the atmosphere by (denitrification reaction). At this time, the denitrification reaction requires an organic carbon source as an energy source of the denitrification bacteria involved in this.

도 1은 종래기술에 따른 질소제거 탈질장치를 나타낸 개략적인 구성도로서, 도 1에 나타낸 바와 같이, 종래기술에 따른 질소제거 탈질장치는 탈질처리를 위한 폐수가 저장된 집수조(10)와, 다음의 탈질조(30) 내에 함유된 탈질세균의 에너지원으로 사용되는 유기탄소원이 저장된 유기탄소원 저장조(20)와, 상기 집수조(10) 및 유기탄소원 저장조(20)로부터 폐수 및 유기탄소원(MeOH)을 공급받으며 탈질세균을 통해 폐수에 함유된 질산염을 탈질산화시켜 질소가스를 발생/배출되게 하는 탈질조(30)와, 상기 탈질조(30)를 통해 질소가스가 제거된 폐수를 공급받아 고액 분리처리하되 상등수는 처리수로서 배출하고 잔여 슬러지는 상기 탈질조(30) 내로 재공급하는 침전조(40)를 포함하여 이루어지는 구성이며, 상기 탈질조(30) 내에는 내부로 공급되는 폐수와 유기탄소원의 균질화를 위한 교반기(50)가 설치된다.1 is a schematic configuration diagram showing a nitrogen removal denitrification apparatus according to the prior art. As shown in FIG. 1, the nitrogen removal denitrification apparatus according to the prior art includes a collection tank 10 in which waste water for denitrification is stored, and Supplying wastewater and organic carbon source (MeOH) from the organic carbon source storage tank 20 in which the organic carbon source used as the energy source of the denitrification bacteria contained in the denitrification tank 30 and the collection tank 10 and the organic carbon source storage tank 20 are supplied. Denitrification tank 30 for denitrifying and nitrating nitrate contained in the wastewater through denitrification bacteria to generate / discharge nitrogen gas, and wastewater from which nitrogen gas has been removed through the denitrification tank 30 are subjected to solid-liquid separation. The supernatant is discharged as treated water and the remaining sludge includes a settling tank 40 for resupply into the denitrification tank 30. The denitrification tank 30 includes wastewater and organic carbon supplied therein. Agitator 50 is installed for homogenization of the circle.

그런데, 이러한 구성으로 이루어진 종래기술에 따른 폐수의 질소제거 탈질장치는 장치의 설치시 소요면적을 많이 차지하는 단점이 있을 뿐만 아니라 장치의 운전이 용이하지 못하거나 운전효율이 떨어지는 단점을 지니고 있으며, 폐수로부터 질소 제거효율 및 부유고형물(Suspended Solid) 제거효율이 그다지 높지 않음은 물론 배출수의 수질을 안정적으로 형성시키지 못하는 문제점이 있었다.However, the denitrification apparatus of the wastewater according to the prior art having such a configuration has a disadvantage in that it takes up a large amount of required area when installing the apparatus, and also has a disadvantage in that the operation of the apparatus is not easy or the operating efficiency is low. Nitrogen removal efficiency and suspended solids removal efficiency is not very high, there was a problem that can not form a stable water quality of the discharged water.

또한, 장치의 부하율이 최대 0.4∼0.5kg-N/㎥.d의 수준으로서 하루에 많은 량의 폐수처리가 어려운 문제점이 있었다.In addition, the load ratio of the device is 0.4 ~ 0.5kg-N / ㎥.d at the level of a large amount of wastewater treatment is difficult in a day.

본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 그 목적으로 하는 바는 질소처리의 부하율을 크게 향상시킬 수 있도록 하고 장치의 설치시 소요면적을 최소화시킬 수 있도록 함과 동시에 장치의 운전효율을 최대화할 수 있도록 하며 폐수로부터 질소 제거효율 및 부유고형물 제거효율을 향상시킬 수 있도록 한 생물막 탈질 여과장치를 제공하는데 있다.The present invention has been devised to solve the above problems, and its purpose is to greatly improve the load rate of nitrogen treatment and to minimize the required area during installation of the device, while at the same time operating efficiency of the device. It is to provide a biofilm denitrification filtration device that can maximize the efficiency of nitrogen and improve the efficiency of nitrogen removal and suspended solids removal from waste water.

또한, 본 고안은 처리수의 수질을 안정적으로 유지할 수 있도록 하고 폐수처리시스템에 폭기조가 운영되고 있으나 후탈질조 용량의 신설이 필요한 경우에 별도의 토목조 대신 대안으로 설치할 수 있도록 하거나 질산염 형태로 배출되는 공정에 직접 설치할 수 있도록 하며 탈질조 내에서 탈질세균이 용이하게 부착될 수 있도록 한 생물막 탈질 여과장치를 제공하는데 있다. In addition, the present invention enables to maintain the water quality of the treated water stably, and when the aeration tank is operated in the wastewater treatment system, but if it is necessary to establish a post-denitrification tank capacity, it can be installed as an alternative instead of a separate civil tank or discharged in the form of nitrate The present invention provides a biofilm denitrification filtration apparatus that can be directly installed in a process to which denitrification bacteria can be easily attached in a denitrification tank.

상기와 같은 목적을 달성하기 위한 본 고안은 공급펌프의 구동으로 공급배관을 통해 폐수를 공급하는 집수조와; 약품공급펌프의 구동으로 약품공급배관을 통해 탈질세균의 에너지원으로 사용되는 유기탄소원을 공급하는 유기탄소원 저장조와; 상기 집수조 및 유기탄소원 저장조에서 공급되는 폐수 및 유기탄소원을 혼합 처리하는 혼합기와; 상기 혼합기를 통과한 폐수를 공급받되 모래여재 및 이에 부착 성장하는 탈질세균의 충진을 통해 무산소지역을 형성시켜 공급되는 폐수로부터 질산염의 탈질산화에 의한 질소가스(N2)의 배출을 수행되게 하며, 고액 분리를 통한 상등수는 처리수로서 배출되게 한 탈질조와; 상기 혼합기를 통과한 폐수를 상기 탈질조 내에 균등하게 분배/공급하도록 한 분배기와; 상기 탈질조에 내장되며 하측으로 공기압축기를 연결하여 상기 탈질조 내의 하층에 퇴적되는 더러운 협작물을 상향 이송시키되 협작물 중에서 모래는 처리수를 이용하여 세정한 후 탈질조(140) 내로 재투입되게 하고 나머지는 상기 집수조로 보내는 협작물 이송관을 포함하여 이루어지는 것을 그 기술적 구성상의 특징으로 한다.The present invention for achieving the above object is a collection tank for supplying waste water through the supply pipe by the drive of the supply pump; An organic carbon source storage tank for supplying an organic carbon source used as an energy source of denitrifying bacteria through a chemical supply pipe by driving a chemical supply pump; A mixer for mixing and treating the wastewater and the organic carbon source supplied from the sump tank and the organic carbon source storage tank; The wastewater passed through the mixer is supplied, but an anoxic zone is formed through the filling of sand media and the denitrifying bacteria growing therein so as to discharge nitrogen gas (N 2 ) by denitrification of nitrate from the supplied wastewater. A denitrification tank through which the supernatant water through solid-liquid separation is discharged as treated water; A distributor configured to equally distribute / supply the wastewater passed through the mixer into the denitrification tank; It is embedded in the denitrification tank and connected to the air compressor to the lower side to transfer the dirty condensate deposited on the lower layer in the denitrification tank up, but the sand in the condensate is washed with treated water and then re-introduced into the denitrification tank 140 The rest is characterized in that the technical configuration consisting of a conveying material conveying pipe sent to the sump.

이하, 본 고안의 바람직한 실시예를 첨부한 도면을 참조하면서 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 2는 본 고안에 따른 질소제거를 위한 생물막 탈질 여과장치를 나타낸 개략적인 구성도이다.Figure 2 is a schematic diagram showing a biofilm denitrification filtration device for nitrogen removal according to the present invention.

도 2에 나타낸 바와 같이, 본 고안에 따른 질소제거를 위한 생물막 탈질 여과장치는 아질산성 질소(NO2-―N)나 질산성 질소(NO3-―N)의 질산염 형태로 배출되는 폐수를 처리하기 위한 장치로서, 폐수가 저장된 집수조(110)와, 탈질세균의 에너지원으로 사용되는 유기탄소원(MeOH)이 저장된 유기탄소원 저장조(120)와, 상기 집수조(110) 및 유기탄소원 저장조(120)에서 공급되는 폐수 및 유기탄소원을 혼합 처리하는 혼합기(130)와, 상기 혼합기(130)를 통과한 폐수(원폐수+유기탄소원)를 공급받되 모래여재 및 이에 부착 성장하는 탈질세균의 충진을 통해 무산소지역(Anoxic Zone; 모래여재+탈질세균)을 형성시켜 공급되는 폐수로부터 질산염의 탈질산화에 의한 질소가스(N2)의 배출을 수행되게 하며 고액 분리를 통한 상등수는 처리수로서 배출하는 탈질조(140)와, 상기 혼합기(130)를 통과한 폐수를 상기 탈질조(140) 내에 균등하게 분배/공급하는 분배기(150)와, 상기 탈질조(140)에 내장되며 하측으로 공기압축기(170)를 연결하여 상기 탈질조(140) 내의 하층에 퇴적되는 더러운 협작물(모래+잉여탈질미생물+부유고형물)을 상향 이송시키되 상기 협작물 중에서 모래는 일부 처리수를 이용하여 세정한 후 탈질조(140) 내로 재투입되게 하고 나머지는 상기 집수조(110)로 보내는 협작물 이송관(160)을 포함하여 이루어진다.As shown in FIG. 2, the biofilm denitrification filtration apparatus for nitrogen removal according to the present invention treats wastewater discharged in the form of nitrate of nitrite nitrogen (NO 2 -N) or nitrate nitrogen (NO 3 -N). As a device for storing the wastewater storage tank 110, the organic carbon source (MeOH) is used as an energy source for denitrification bacteria storage tank 120, and the collection tank 110 and the organic carbon source storage tank 120 Oxygen-free area through the mixing of the wastewater and the organic carbon source to be supplied, and the wastewater (raw wastewater + organic carbon source) passed through the mixer 130 through the filling of sand media and denitrification bacteria attached to it Denitrification tank (140) to discharge nitrogen gas (N 2 ) by denitrification of nitrate from the wastewater supplied by forming (Anoxic Zone; sand media + denitrification bacteria), and the supernatant water through solid-liquid separation as treated water (140) ) And the above A distributor 150 for evenly distributing / supplying wastewater that passed through the mixer 130 into the denitrification tank 140 and the denitrification tank 140 connected to the air compressor 170 under the denitrification tank 140 are connected to the lower side. Dirty condensate (sand + surplus denitrification microorganisms + floating solids) deposited in the lower layer in 140 is transported upward, but the sand of the condensate is washed with some treated water and then re-introduced into the denitrification tank 140. The rest is made to include a workpiece transport pipe 160 to the sump (110).

상기 집수조(110) 및 유기탄소원 저장조(120)의 각 공급배관(101a)(101b) 상에는 폐수 및 유기탄소원을 탈질조(140)로 공급하기 위한 공급펌프(102a)(102b)가 각각 설치된다. 이때, 공급배관(101a)(101b)은 어느 일측에서 상호 통합되어 통합배관(101)을 형성하게 되고 그 일단이 상기 탈질조(140)에 내장된 분배기(150)측 연결된다.Supply pumps 102a and 102b for supplying wastewater and organic carbon sources to the denitrification tank 140 are respectively provided on the supply pipes 101a and 101b of the collection tank 110 and the organic carbon source storage tank 120. At this time, the supply pipe (101a) (101b) is integrated on one side to form an integrated pipe 101 and one end thereof is connected to the distributor 150 built in the denitrification tank (140).

상기 집수조(110)의 공급배관(101a) 상에는 폐수로부터 질산염의 농도를 감지하고 이러한 감지신호를 유기탄소원측 공급펌프(102b)로 전송하여 유기탄소원의 탈질조(140)측 공급량을 자동 조절할 수 있도록 질산염자동측정기(181)가 설치되며, 폐수의 공급유량을 측정하는 유량자동측정기(182)가 설치된다.The supply pipe 101a of the sump 110 detects the concentration of nitrate from the wastewater and transmits this detection signal to the organic carbon source side supply pump 102b so as to automatically adjust the denitrification tank 140 side supply amount of the organic carbon source. A nitrate automatic measuring device 181 is installed, a flow rate automatic measuring device 182 for measuring the flow rate of the waste water is installed.

상기 혼합기(130)는 상기 통합배관(101) 상에 설치된다.The mixer 130 is installed on the integrated pipe 101.

상기 탈질조(140)는 그 내부 하측이 하측방향으로 갈수록 중심부에 집중되도록 내측 경사구조로 형성된다.The denitrification tank 140 is formed with an inner inclined structure so that the inner lower side thereof is concentrated in the center toward the lower side.

상기 분배기(150)는 폐수와 유기탄소원이 혼합된 폐수의 효율적인 분배/공급이 이루어지도록 상/하 배열되는 이중배치구조를 형성되게 함이 바람직하다.The distributor 150 may be configured to form a double arrangement structure, which is arranged up and down so that efficient distribution / supply of the wastewater mixed with the wastewater and the organic carbon source is achieved.

이러한 구성으로 이루어진 본 고안에 따른 폐수처리를 위한 생물막 탈질 여과장치의 작용을 살펴보면 다음과 같다.Looking at the action of the biofilm denitrification filtration device for wastewater treatment according to the present invention made of such a configuration as follows.

먼저, 공급펌프(102a)를 구동시켜 집수조(110) 내 폐수를 공급배관(101a)을 통해 탈질조(140)측으로 공급되게 한다. 이때, 공급되는 폐수는 공급배관(101a) 상에 설치된 질산염자동측정기(181) 및 유량자동측정기(182)에 의해 질산염의 농도를 측정하게 되고 공급되는 폐수의 유량을 체크하게 된다.First, the supply pump 102a is driven to allow the wastewater in the water collecting tank 110 to be supplied to the denitrification tank 140 through the supply pipe 101a. At this time, the wastewater to be supplied is measured by the nitrate automatic measuring device 181 and the flow rate measuring device 182 installed on the supply pipe 101a to check the flow rate of the wastewater supplied.

질산염자동측정기(181)는 공급되는 폐수로부터 질산염의 농도를 자동 측정하고 이 측정신호를 유기탄소원 저장조(120)측 약품공급펌프(102b)로 보내게 되며, 약품공급펌프(102b)는 질산염자동측정기(181)의 측정신호에 따라 즉, 측정된 농도량에 따라 구동되어 유기탄소원 저장조(120)에서 폐수측 측정된 질산염 농도의 3배에 해당하는 유기탄소원을 약품공급배관(101b)을 통해 자동으로 조절하여 공급되게 한다. 예를 들어, 공급되는 폐수측 측정된 질산염의 농도가 100mg/ℓ정도라고 하면 유기탄소원은 300mg/ℓ정도가 공급되어야 하며, 유기탄소원은 탈질조(140) 내에 충진된 탈질세균의 에너지원으로 작용되어 공급되는 폐수측에 함유된 질산염의 탈질산화반응을 수행할 수 있게 하는 필요충분요소이다.The nitrate automatic measuring device 181 automatically measures the concentration of nitrate from the supplied wastewater and sends this measurement signal to the chemical supply pump 102b on the side of the organic carbon source storage tank 120, and the chemical supply pump 102b is a nitrate automatic measuring device. In accordance with the measurement signal of 181, that is, driven according to the measured concentration amount, the organic carbon source corresponding to three times the nitrate concentration measured on the wastewater side in the organic carbon source storage tank 120 automatically through the chemical supply pipe 101b. To be adjusted and supplied. For example, if the concentration of nitrate measured on the wastewater side is about 100 mg / l, the organic carbon source should be supplied at about 300 mg / l, and the organic carbon source acts as an energy source for denitrification bacteria filled in the denitrification tank 140. It is a necessary and sufficient element to perform the denitrification reaction of nitrate contained in the wastewater to be supplied.

각 공급배관(101a)(101b)을 통해 공급되는 폐수 및 유기탄소원은 통합배관(101) 상에 설치된 혼합기(130)에서 혼합 처리된 후, 탈질조(140) 내 설치된 분배기(150)를 통해 모래여재와 이에 부착 성장하는 탈질세균이 공존하는 탈질조(140)의 무산소지역(Anoxic Zone) 내에 균등하게 분배/공급되어진다.The wastewater and organic carbon source supplied through each supply pipe 101a and 101b are mixed in the mixer 130 installed on the integrated pipe 101 and then sand through the distributor 150 installed in the denitrification tank 140. The filter medium is equally distributed / supplied in the anoxic zone of the denitrification tank 140 in which the denitrification bacteria growing thereon coexist.

탈질조(140) 내 유입된 유기탄소원은 탈질세균의 에너지원으로 작용되고 함께 유입된 폐수에서는 폐수 내에 존재하는 질소염의 탈질반응이 일어나게 된다. 이러한 탈질반응에 의해 질소가스(N2)가 생성되고 대기중으로 방출되어 폐수 내에 존재하는 질소성분이 제거된다.The organic carbon source introduced into the denitrification tank 140 serves as an energy source of denitrification bacteria, and the denitrification reaction of nitrogen salts present in the wastewater occurs in the wastewater introduced together. Nitrogen gas (N 2 ) is generated and released into the atmosphere by the denitrification to remove nitrogen components present in the wastewater.

이러한 탈질반응과 동시에 탈질조(140)의 하부로는 모래여재와 잉여탈질미생물 및 부유고형물 등이 층상구조를 형성하게 되는데, 하층으로 갈수록 더욱 지저분하고 더러운 협작물(모래+잉여탈질미생물+부유고형물)이 적층되어진다.At the same time as the denitrification reaction, the sand filter, surplus denitrification microorganisms, and suspended solids form a layered structure at the lower part of the denitrification tank 140. As the lower layer becomes more messy and dirty contaminants (sand + surplus denitrification microorganisms + floating solids) ) Are stacked.

또한, 탈질반응이 이루어진 폐수 중에서 상등수는 탈질조(140)의 상부로 형성되고 처리수로서 배출하게 된다.In addition, the supernatant of the denitrification wastewater is formed in the upper portion of the denitrification tank 140 and is discharged as treated water.

더불어, 공기압축기(170)를 통한 공기의 공급으로 탈질조(140) 내 하측에 형성된 지저분하고 더러운 협작물을 협작물 이송관(160)을 통해 상향 이송시키되 상기 협작물 중에서 모래는 일부 처리수를 활용하여 세정한 후 탈질조(140) 내의 무산소지역으로 재투입되게 하고 나머지 잉여탈질미생물 및 부유고형물은 집수조(110)로 보낸 다음, 다시 폐수 처리되게 한다. 이는 폐수 내 부유고형물(Suspended Solid)을 제거하는 효과를 발휘하게 된다.In addition, by supplying the air through the air compressor 170, a dirty dirty concave formed in the lower side of the denitrification tank 140 is conveyed upward through the conveying material conveying pipe 160, the sand of the concave is a part of the treated water After cleaning by utilizing it to be re-introduced into the anoxic region in the denitrification tank 140 and the remaining excess denitrification microorganisms and suspended solids are sent to the collection tank 110, and then to be treated again wastewater. This will have the effect of removing suspended solids in the waste water.

상술한 바와 같은 이러한 구성 및 작용에 의한 본 고안의 질소제거를 위한 생물막 탈질 여과장치는 폐수 및 유기탄소원의 공급량을 자동으로 조절할 수 있고, 탈질조(140) 내부에 모래여재를 충진함으로써 탈질반응을 위한 무산소상태를 효율적으로 형성시킬 수 있게 됨은 물론 탈질세균의 부착을 용이하게 할 수 있게 한다. 이에 따라 폐수 내에 존재하는 질산염을 질소가스로 95% 이상 완벽하게 제거할 수 있게 되며, 부하율이 2.5∼3kg-N/㎥.d의 수준으로 기존공법에 비하여 5∼6배 이상의 부하량을 갖게 된다.The biofilm denitrification filtration device for nitrogen removal of the present invention by such a configuration and action as described above can automatically control the supply amount of wastewater and organic carbon source, and the denitrification reaction by filling the sand filter in the denitrification tank 140. In addition to being able to form an anoxic state efficiently, it also facilitates the attachment of denitrifying bacteria. Accordingly, it is possible to completely remove more than 95% of the nitrates present in the waste water with nitrogen gas, and the load ratio is 2.5 to 3 kg-N / ㎥.d and has a load of 5 to 6 times higher than that of the existing method.

또한, 본 고안은 부유고형물을 10∼20mg/ℓ이하로 유지할 수 있게 하므로 부유고형물의 제거효율이 높을 뿐만 아니라 배출/방류되는 처리수의 안정적인 수질상태를 유지할 수 있게 한다.In addition, the present invention is able to maintain the suspended solids below 10 ~ 20mg / ℓ not only high removal efficiency of the suspended solids but also to maintain a stable water quality of the discharged / discharged treated water.

이상에서 살펴본 바와 같이 본 고안에 따른 생물막 탈질 여과장치에 의하면, 질소처리의 부하율을 크게 향상시킬 수 있고 장치의 설치시 소요면적을 최소화시킬 수 있을 뿐만 아니라 장치의 운전에 대한 용이성 및 효율성을 최대화할 수 있으며 폐수로부터 질소 제거효율 및 부유고형물 제거효율을 향상시킬 수 있다.As described above, according to the biofilm denitrification filtration device according to the present invention, it is possible to greatly improve the loading rate of nitrogen treatment, minimize the required area during installation of the device, and maximize the ease and efficiency of operation of the device. It can improve the efficiency of nitrogen removal and suspended solids removal from waste water.

또한, 본 장치는 처리수의 수질을 안정적으로 유지되게 하며 모래여재의 충진을 통해 무산소지역의 형성과 탈질산화반응을 위한 탈질세균의 부착을 용이하게 하여주는 유용함을 제공한다.In addition, the device provides a useful maintenance to maintain the water quality of the treated water and to facilitate the formation of anoxic zones and the attachment of denitrifying bacteria for the denitrification through the filling of sand media.

나아가, 본 장치는 폐수처리시스템에 폭기조가 운영되고 있으나 후탈질조 용량의 신설이 필요한 경우에 별도의 토목조 대신 대안으로 설치할 수 있을 뿐만 아니라 질산염 형태로 배출되는 공정에도 유용하게 사용할 수 있다.In addition, the aeration tank is operated in the waste water treatment system, but if a new denitrification tank capacity is required, it can be installed as an alternative to a separate civil tank, but also useful in the process of nitrate discharge.

도 1은 종래기술에 따른 질소제거 탈질장치를 나타낸 개략적인 구성도.Figure 1 is a schematic diagram showing a nitrogen removal denitrification apparatus according to the prior art.

도 2는 본 고안에 따른 질소제거를 위한 생물막 탈질 여과장치를 나타낸 개략적인 구성도.Figure 2 is a schematic diagram showing a biofilm denitrification filtration device for nitrogen removal according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

101: 통합배관 101a,101b: 공급배관101: integrated piping 101a, 101b: supply piping

102a,102b: 공급펌프 110: 집수조102a, 102b: supply pump 110: water tank

120: 유기탄소원 저장조 130: 혼합기120: organic carbon source storage tank 130: mixer

140: 탈질조 150: 분배기140: denitrification tank 150: distributor

160: 협작물 이송관 170: 압축기160: the workpiece conveying pipe 170: compressor

181: 질산염자동측정기 182: 유량자동측정기181: nitrate automatic measuring instrument 182: flow automatic measuring instrument

Claims (2)

공급펌프(102a)의 구동으로 공급배관(101a)을 통해 폐수를 공급하는 집수조(110)와;A collection tank 110 for supplying wastewater through a supply pipe 101a by driving the supply pump 102a; 약품공급펌프(102b)의 구동으로 약품공급배관(101b)을 통해 탈질세균의 에너지원으로 사용되는 유기탄소원을 공급하는 유기탄소원 저장조(120)와;An organic carbon source storage tank 120 for supplying an organic carbon source used as an energy source of denitrification bacteria through the chemical supply pipe 101b by driving the chemical supply pump 102b; 상기 집수조(110) 및 유기탄소원 저장조(120)에서 공급되는 폐수 및 유기탄소원을 혼합 처리하는 혼합기(130)와;A mixer 130 for mixing and treating the wastewater and the organic carbon source supplied from the sump tank 110 and the organic carbon source storage tank 120; 상기 혼합기(130)를 통과한 폐수를 공급받되 모래여재 및 이에 부착 성장하는 탈질세균의 충진을 통해 무산소지역을 형성시켜 공급되는 폐수로부터 질산염의 탈질산화에 의한 질소가스(N2)의 배출을 수행되게 하며, 고액 분리를 통한 상등수는 처리수로서 배출되게 한 탈질조(140)와;The wastewater that has passed through the mixer 130 is supplied, but the nitrogen gas (N 2 ) is discharged by the denitrification of nitrate from the supplied wastewater by forming an anoxic region through the filling of sand media and the denitrification bacteria growing therein. Denitrification tank 140, the supernatant through the solid-liquid separation is discharged as treated water; 상기 혼합기(130)를 통과한 폐수를 상기 탈질조(140) 내에 균등하게 분배/공급하도록 한 분배기(150)와;A distributor (150) for equally distributing / supplying the wastewater that has passed through the mixer (130) into the denitrification tank (140); 상기 탈질조(140)에 내장되며 하측으로 공기압축기(170)를 연결하여 상기 탈질조(140) 내의 하층에 퇴적되는 더러운 협작물을 상향 이송시키되 상기 협작물 중에서 모래는 처리수를 이용하여 세정한 후 탈질조(140) 내로 재투입되게 하고 나머지는 상기 집수조(110)로 보내는 협작물 이송관(160)을 포함하여 이루어지는 것을 특징으로 하는 생물막 탈질 여과장치.It is embedded in the denitrification tank 140 and connected to the air compressor 170 to the lower side to transfer the dirty condensate deposited on the lower layer in the denitrification tank 140, the sand of the condensate was washed with the treated water. After the denitrification tank 140, the biofilm denitrification filtration device, characterized in that it comprises a fastener conveying pipe 160 to be sent back to the collection tank (110). 제 1항에 있어서,The method of claim 1, 상기 집수조(110)의 공급배관(101a) 상에는 폐수로부터 질산염의 농도를 감지하고 이러한 감지신호를 유기탄소원측 공급펌프(102b)로 전송하여 유기탄소원의 탈질조(140)측 공급량을 자동 조절할 수 있도록 질산염자동측정기(181)를 설치한 것을 특징으로 하는 생물막 탈질 여과장치.The supply pipe 101a of the sump 110 detects the concentration of nitrate from the wastewater and transmits this detection signal to the organic carbon source side supply pump 102b so as to automatically adjust the denitrification tank 140 side supply amount of the organic carbon source. Biofilm denitrification filtration device characterized in that the nitrate automatic measuring device (181) is installed.
KR20-2004-0036671U 2004-12-24 2004-12-24 Biofilm denitrification filter system KR200378576Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015053417A1 (en) * 2013-10-07 2015-04-16 주식회사 안나비니테즈 Anaerobic digestion apparatus appropriate for treating organic waste material
CN110451726A (en) * 2019-08-15 2019-11-15 苏州湛清环保科技有限公司 Photovoltaic stainless steel waste water total nitrogen handles recycling set device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015053417A1 (en) * 2013-10-07 2015-04-16 주식회사 안나비니테즈 Anaerobic digestion apparatus appropriate for treating organic waste material
CN110451726A (en) * 2019-08-15 2019-11-15 苏州湛清环保科技有限公司 Photovoltaic stainless steel waste water total nitrogen handles recycling set device

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