KR100440748B1 - High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR - Google Patents

High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR Download PDF

Info

Publication number
KR100440748B1
KR100440748B1 KR1020000018192A KR20000018192A KR100440748B1 KR 100440748 B1 KR100440748 B1 KR 100440748B1 KR 1020000018192 A KR1020000018192 A KR 1020000018192A KR 20000018192 A KR20000018192 A KR 20000018192A KR 100440748 B1 KR100440748 B1 KR 100440748B1
Authority
KR
South Korea
Prior art keywords
tank
treated water
anoxic tank
aerobic
livestock wastewater
Prior art date
Application number
KR1020000018192A
Other languages
Korean (ko)
Other versions
KR20010094836A (en
Inventor
김창수
김성홍
허준무
김수영
Original Assignee
김창수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김창수 filed Critical 김창수
Priority to KR1020000018192A priority Critical patent/KR100440748B1/en
Publication of KR20010094836A publication Critical patent/KR20010094836A/en
Application granted granted Critical
Publication of KR100440748B1 publication Critical patent/KR100440748B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/02Dry closets, e.g. incinerator closets
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/04Room closets; Chairs with toilet conveniences or specially adapted for use with toilets, e.g. night chairs ; Closets for children, also with signalling means, e.g. with a music box, or the like

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

본 발명은 축산폐수 처리시스템에 관한 것으로, 그 구성이 원수인 축산폐수를 반응조에 채운 후, 교반을 시키면서 생물학적 반응이 이루어진 후 교반을 멈추고, 침전시킨 다음 상징수를 배출시키는 과정으로 이루어진 연속회분식 혐기성반응조; 유입된 이 연속회분식 혐기성공정을 거친 처리수에 응집제를 주입하여 침전시키는 응집침전조; 유입된 상기 응집침전조의 상등수중의 유기물과 질산성 질소를 이용하여 질산균이 증식하며, 이 과정에서 질산성 질소는 기체상의 질소로 탈질되어 제거되는 제1무산소조; 유입된 상기 제1무산소조를 거친 처리수에 공기를 공급하여 이 처리수중의 유기물을 호기성 미생물에 의해 산화 제거시키고, 일부 처리수를 상기 제1무산소조로 반송시키는 호기조; 유입된 상기 호기조를 거친 처리수에 포함된 질산성 질소를 질산균을 이용하여 제거하는 제2무산소조; 제2무산소조를 거친 처리수의 고형물을 침전 분리시키고 일부 침전물은 상기 제1무산소조 반송시키는 침전조로 이루어진 일련의 공정으로 이루어져 축산폐수를 높은 효율로 처리할 수 있게 된 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock wastewater treatment system , and more particularly, to a livestock wastewater treatment system comprising a livestock wastewater treatment plant, A reaction tank; A coagulating sedimentation tank for injecting coagulant into the treated water after the influx of the continuous batch anaerobic process to precipitate; A first anoxic tank in which nitrate bacteria are proliferated by using organic matter and nitrate nitrogen in the supernatant of the flocculation and sedimentation tank, and nitrate nitrogen is denitrified by gaseous nitrogen in the process; An aerobic tank for supplying air to the treated water passing through the first anoxic tank, oxidizing and removing aerobic organic matter from the treated water by aerobic microorganisms, and returning some treated water to the first anoxic tank; A second anoxic tank for removing nitrate nitrogen contained in the treated water flowing through the aerobic tank through use of nitric acid bacteria; And a settling tank for precipitating and separating the solid matter of the treated water through the second anoxic tank and the sedimentation tank for transporting some sediment to the first anoxic tank, so that the livestock wastewater can be treated with high efficiency.

Description

연속회분식 혐기성공정과 고도처리공정을 결합한 고효율 축산폐수 처리 시스템{High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR}TECHNICAL FIELD [0001] The present invention relates to a high-efficiency livestock wastewater treatment system combining a continuous-batch anaerobic process and an advanced treatment process,

본 발명은 축산폐수 처리시스템에 관한 것으로, 특히 연속회분식 혐기성공정과 고도처리공정을 결합하여 아주 높은 효율로 축산폐수를 처리할 수 있는시스템에 관한 것이다.The present invention relates to a livestock wastewater treatment system , and more particularly, to a system capable of treating livestock wastewater at a very high efficiency by combining a continuous batch anaerobic process and an advanced treatment process.

일반적으로 축산폐수는 유량 및 특성이 다양하고, 고형물의 농도와 유기물 농도가 높지만 상대적으로 다른 폐수에 비해 탄소/질소비가 낮기 때문에 그 처리에많은 어려움을 겪고 있다.Generally, livestock wastewater has many difficulties in treatment because it has various flow and characteristics, high concentration of solids and high concentration of organic matter but relatively low carbon / nitrogen ratio compared to other wastewater.

현재 축산폐수 처리기술은 고형분 농도가 낮은 축산폐수의 경우로 국한되며, 고형분 농도가 높은 축산폐수의 처리기술은 그다지 개발되어 있지 못한 실정이다. 또한 국내에서 현재 연구개발되어 설치 운영중인 축산폐수 처리시설의 가장 큰 문제점은 유입수 농도변화에 능동적인 대처가 미흡하다는 것이다.Currently, livestock wastewater treatment technology is limited to livestock wastewater with low solid concentration, and the technology for treating livestock wastewater with high solid concentration has not been developed so far. In addition, the biggest problem of the livestock wastewater treatment facilities that are currently being researched and installed in Korea is that active countermeasures against influent concentration changes are insufficient.

현재 일부 축사에서 분과 뇨가 분리, 배출되지 않아 그 성상의 차이와 변화가 크기 때문에 이러한 현상이 곧바로 처리시설의 안정성에 영향을 주어 적절한 처리가 이루어지지 않거나 처리실패로 이어지고 있다.Since the separation and discharge of urine and urine are not currently conducted in some housing facilities, differences in characteristics and changes are significant, and this phenomenon immediately affects the stability of the treatment facility, leading to inappropriate treatment or failure of treatment.

아울러 현재 처리시설로 많이 이용되고 있는 혐기-호기법의 경우 재래식 혐기처리법을 사용하므로서 운전 초기 혐기성 미생물의 확보 등의 문제점으로 초기운전에 상당한 어려움을 겪고 있다.In addition, the anaerobic - anaerobic technique, which is currently being used as a treatment facility, suffers considerable difficulty in initial operation due to problems such as securing anaerobic microorganisms in the early stage of operation by using the conventional anaerobic treatment method.

또한 소화슬러지가 후속 호기처리공정에 유입되어 지나친 유기물 및 고형물 부하를 가하고 있어 장시간의 체류시간이 필요하고, 용량이 커지게 되며 처리비용 상승으로 이어지는 경우가 상당히 많다. 이러한 경우 처리비용은 비육돈 생산비의 5~10%를 차지하기도 한다. 한편, 기타 축산페수 처리기술의 경우 처리시설에서 발생하는 악취문제와 아울러 기본적으로 저효율로 운전되어 국가 전체적으로 많은 비효율성이 초래되고 있는 실정이다. 개발되어 있는 많은 축산폐수 처리공정이 유입수의 농도가 낮거나 체류시간이 긴 단점을 가지고 있으며 올해 상반기중에 강화된 축산폐수의 방류수 수질기순을 만족시키지 못하고 있다.In addition, since digested sludge flows into the subsequent aerobic treatment process and exerts excessive organic matter and solids load, it requires a long residence time, increases the capacity, and increases the processing cost. In this case, the processing cost may account for 5 ~ 10% of the cost of the finishing production. On the other hand, in the case of other livestock wastewater treatment technology, there is a problem of odor generated in the treatment facilities, and in addition, it is operated with low efficiency basically, resulting in a lot of inefficiency throughout the country. Many of the developed livestock wastewater treatment processes have low concentrations of influent water and long residence times and fail to satisfy the water quality requirements of fortified livestock wastewater during the first half of this year.

본 발명은 상술한 제문제점을 해소하기 위한 것으로, 축산폐수의 특성을 감안하여 대상유입수의 농도에 관계없이 기존의 혐기성 공정에 비하여 월등히 간단한 시설로도 고효율로 축산폐수를 처리할 수 있는 축산폐수 처리시스템을 제공함에 그 목적이 있다.In view of the characteristics of livestock wastewater, it is an object of the present invention to provide a livestock wastewater treatment apparatus capable of treating livestock wastewater with high efficiency even in a simpler facility than the existing anaerobic process, The system has a purpose to provide.

도 1은 본 발명에 따른 축산폐수 처리공정의 구성도이다.1 is a configuration diagram of a livestock wastewater treatment process according to the present invention.

*도면의 주요부분에 대한 부호의 설명*Description of the Related Art [0002]

10 : 연속회분식 혐기성반응조 20 : 응집침전조10: continuous batch anaerobic tank 20: flocculation tank

30 : 제1무산소조 40 : 제2무산소조30: first anoxic tank 40: second anoxic tank

50 : 호기조 60 : 침전조50: aerobic tank 60: settling tank

70 : 재폭기조70: Re-aeration tank

상기 목적을 달성하기 위한 본 발명은, 원수인 축산폐수를 반응조에 채운 후, 교반을 시키면서 생물학적 반응이 이루어진 후 교반을 멈추고, 침전시킨 다음 상징수를 배출시키는 과정으로 이루어진 연속회분식 혐기성반응조; 유입된 이 연속회분식 혐기성공정을 거친 처리수에 응집제를 주입하여 침전시키는 응집침전조; 유입된 상기 응집침전조의 상등수중의 유기물과 질산성 질소를 이용하여 질산균이 증식하며, 이 과정에서 질산성 질소는 기체상의 질소로 탈질되어 제거되는 제1무산소조; 유입된 상기 제1무산소조를 거친 처리수에 공기를 공급하여 이 처리수중의 유기물을 호기성 미생물에 의해 산화 제거시키고, 일부 처리수를 상기 제1무산소조로 반송시키는 호기조; 유입된 상기 호기조를 거친 처리수에 포함된 질산성 질소를 질산균을 이용하여 제거하는 제2무산소조; 상기 제2무산소조를 거친 처리수의 고형물을 침전 분리시키고 일부 침전물은 상기 제1무산소조 반송시키는 침전조로 이루어진 일련의 공정을 거쳐 축산폐수를 처리하는 축산폐수 처리시스템을 제공한다.In order to accomplish the above object, the present invention provides a continuous batch anaerobic reactor comprising a step of filling the reactor wastewater, which is raw water, into a reaction tank, stirring the resultant mixture for biological reaction, stopping stirring, precipitating and then discharging the representative water. A coagulating sedimentation tank for injecting coagulant into the treated water after the influx of the continuous batch anaerobic process to precipitate; A first anoxic tank in which nitrate bacteria are proliferated by using organic matter and nitrate nitrogen in the supernatant of the flocculation and sedimentation tank, and nitrate nitrogen is denitrified by gaseous nitrogen in the process; An aerobic tank for supplying air to the treated water passing through the first anoxic tank, oxidizing and removing aerobic organic matter from the treated water by aerobic microorganisms, and returning some treated water to the first anoxic tank; A second anoxic tank for removing nitrate nitrogen contained in the treated water flowing through the aerobic tank through use of nitric acid bacteria; Separating the precipitated solids from the treated water subjected to the second anoxic tank and some precipitate provides a livestock waste water treatment system for processing livestock waste water through a series of processes consisting of a settling tank for conveying the first anoxic tank.

상기 축산폐수 처리시스템에서, 상기 연속회분식 혐기성반응조를 다수개 설치하여 축산폐수의 유입과 처리수의 유출이 병렬로 이루어질 수 있는 것이 연속적인 처리에 바람직하고, 상기 제1무산소 또는 제2무산소에 탄소공급원으로 메탄올 등을 주입시키는 것이 축산폐수의 특성에 맞아 바람직하다.In the livestock wastewater treatment system , it is preferable that a plurality of the continuous batch anaerobic reactors are provided so that the inflow of the livestock wastewater and the outflow of the treated water can be performed in parallel, which is preferable for the continuous treatment, and the first anaerobic or anaerobic It is preferable to inject methanol or the like as a supply source in accordance with the characteristics of the livestock wastewater.

이하 첨부된 도면을 참조하여 본 발명의 실시예를 설명한다. 도 1은 본 발명에 따른 실시예의 구성도이다.BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a configuration diagram of an embodiment according to the present invention.

본 발명에 따른 축산폐수 처리시스템은 다양한 축산폐수의 성상에 탄력적으로 대처 가능하며 안정된 처리효율을 얻을 수 있다는 장점을 가지고 있다. 기존 축산폐수 처리시설의 설계농도가 실제 유입농도에 비하여 낮아 안정된 처리효율을 확보하지 못한 반면, 본 발명의시스템을 이용하여 고농도 축산폐수를 대상으로 자체처리한 결과에서는 고효율의 유기물, 질소 및 인의 제거율 값을 얻을 수 있었다.The livestock wastewater treatment system according to the present invention has an advantage that it can cope with the characteristics of various livestock wastewater and can obtain stable treatment efficiency. On the other hand the design density of the existing livestock waste water treatment facility was unable to obtain a stable treatment efficiency lower than the actual input concentration, in using the system of the present invention result of its own process target a high concentration livestock waste organic matter, nitrogen and phosphorous removal rate of the high-efficiency Value.

유기물과 질소, 인 등이 포함된 축산폐수는 먼저 상기 연속 회분식 혐기성 (Sequencing Batch Anaerobic Reactor, 이하 'SBAR'이라 함)반응조(10)으로 이송된다. SBAR공정은 원수의 유입 및 반응이 끝난 처리수의 배출이 이루어지는 연속회분식 혐기성반응조(10)에서 이루어지는데, 원수를 혐기성반응조(10)에 채운후 교반을 시키면서 생물학적 반응이 이루어진 후 교반을 멈추고 침전시킨 다음 상징수를 배출시키는 과정으로 이루어져 있다.The livestock wastewater containing organic matter, nitrogen, phosphorus and the like is first transferred to the sequencing batch anaerobic reactor (SBAR) 10. The SBAR process is performed in a continuous batch anaerobic reactor (10) in which raw water is introduced and the reacted water is discharged. After the raw water is filled in the anaerobic reactor (10), the biological reaction is performed while stirring, And then discharging the next number of symbols.

기존의 축산폐수처리시설이 고농도 고형물과 유기물의 유입으로 호기조에서 적정 용존산소농도를 유지하지 못하여 공정의 정상적인 운영이 불가능하였으나, 본 발명은 SBAR공정에 축산폐수(원수)를 이송시켜 유기물과 고형물을 제거함으로써 후단의 고도처리공정의 공기공급량을 절감하고, 안정된 처리효율을 확보할 수 있도록 하였다. 기존의 혐기성 공정에 비하여 고농도 미생물이 유지되며 고액분리가 월등한 SBAR공정에 의해 유기물은 슬러지와 메탄 등의 가스로 전환되고 고액분리를 통해 원수내의 유기물과 고형물이 제거된다. SBAR공정의 체류시간은 10일로 유지한다.The existing livestock wastewater treatment facility was unable to maintain the proper dissolved oxygen concentration in the aerobic tank due to the inflow of the high concentration solid matter and organic matter. However, the present invention was not able to operate the process properly, but the present invention provides the SBAR process to transport the livestock wastewater (raw water) So that the amount of air supplied to the subsequent stage of the advanced treatment process can be reduced and stable treatment efficiency can be ensured. Concentrated microorganisms are retained compared to conventional anaerobic processes. Organic matter is converted into sludge and methane gas by SBAR process, which is superior in solid-liquid separation, and organic matter and solids in raw water are removed through solid-liquid separation. The residence time of the SBAR process is maintained at 10 days.

혐기성 상태에서 원수내에 포함되어 있는 인과 고형물에 존재하는 인은 액상으로 배출된다.In the anaerobic state, phosphorus present in the phosphorus and solids contained in the raw water is discharged into the liquid phase.

이 SBAR공정은 단일 반응조에서 유입, 반응, 침전, 배출 등이 주기적으로 반복 진행되는 생물학적 처리시스템이다. 과거에는 제어의 어려움으로 하수처리에 적용이 곤란했으나 최근에는 자동제어설비의 발달로 운전에 큰 어려움이 없어지면서 호기성 폐수처리의 효과적인 대안으로 자리를 잡아가고 있다.This SBAR process is a biological treatment system in which the inflow, reaction, precipitation, and discharge are periodically repeated in a single reaction tank. In the past, it was difficult to apply it to sewage treatment due to the difficulty of control. However, recently, the development of automatic control facility has made it difficult to operate and it has become an effective alternative to aerobic wastewater treatment.

이 공정의 장점으로는 다음과 같은 점을 들 수 있다.Advantages of this process include the following.

첫째, 운전상의 융통성을 들 수 있다. 하나의 반응조에서 각 단계 반응이 진행되기 때문에 별도의 시설이나 운전상의 문제점 없이 고농도의 미생물을 유지할 수 있고, 각 단계의 시간적 배열을 다르게 함으로써 다양한 처리 목적에 부합되는 처리가 가능해진다.First, operational flexibility. Since each step reaction proceeds in one reaction tank, the microorganisms can be maintained at a high concentration without a separate facility or operational problem. By making the time sequence of each step different, it becomes possible to perform treatment corresponding to various treatment purposes.

둘째, 유체의 흐름을 균등화시킬 수 있다. 연속 반응식 반응조에서는 계절적, 단기적인 유체의 변동에 의해 영향을 크게 받지만 SBAR에서는 병렬로 여러개의 반응조를 연결하면 주기적인 흐름의 변동을 제어하기 편하다. 실제 하수 처리장에서도 혐기성 반응조로 유입되는 농축 슬러지가 항상 일정하지 못하여 필요 이상의 용량이 낭비되거나 유기물질을 제대로 처리하지 못하기도 한다.Second, the fluid flow can be equalized. In the continuous reaction tank, it is influenced by seasonal and short-term fluid fluctuations. However, in SBAR, it is easy to control the fluctuation of periodic flow by connecting several reactors in parallel. At the actual sewage treatment plant, the concentrated sludge flowing into the anaerobic reactor is not always constant, which may waste the necessary capacity or fail to properly treat the organic matter.

세째, 침전시에는 유체의 흐름이 전혀 없는 상태이기 때문에 거의 완벽한 침전을 기대할 수 있어 미생물의 농축을 극대화시킬 수 있다. 배출시에도 상징수의고형물 농도를 최소화시킬 수 있고 반응조 하부에서 인출하는 농축 소화슬러지는 더욱 농축되어, 농축 및 탈수를 위해 드는 노력을 경감시킬 수 있다.Thirdly, since there is no flow of the fluid at the time of precipitation, almost complete precipitation can be expected and the concentration of the microorganism can be maximized. It is possible to minimize the solid concentration of the representative water even at the time of discharge, and the concentrated digestion sludge drawn out from the bottom of the reactor can be further concentrated, thereby alleviating the efforts for concentration and dehydration.

네째, 미생물이 접하는 환경이 주기적으로 변하기 때문에 반응을 바라는 방향으로 유도할 수 있으며 선택적으로 미생물군을 유지 할 수 있다. 즉, SBAR의 경우 시간이 흐를수록 점차 침전성이 좋은 종류만이 반응조에 남게되어 침전효율을 증가시킬 수 있다.Fourthly, since the environment in which microorganisms contact is periodically changed, it is possible to induce the reaction in a desired direction and selectively maintain the microorganism group. That is, in the case of SBAR, only the species with better sedimentation tend to remain in the reaction tank with the passage of time, thereby increasing the sedimentation efficiency.

다섯째, 운전조작이 간편하고 반응계통이 간략하여 전문인력이 아니더라도 별 무리없이 처리공정을 조작할 수 있다.Fifth, it is possible to operate the treatment process without difficulty even if it is not a professional workforce because the driving operation is simple and the reaction system is simple.

이 연속회분식 혐기성반응조(10)를 거친 후, 응집침전조(20)로 처리수를 이송시켜 여전히 유기물 함량이 높고 특히 인성분이 많이 포함된 처리수를 화학적 응집 및 침전 제거시스템으로 잔류 고형물과 인을 제거한다.After passing through the continuous batch anaerobic reactor 10, the treated water is transferred to the coagulating sedimentation tank 20 to remove the residual solids and phosphorus by the chemical flocculation and precipitation removal system , do.

상기 응집침전조(20)를 거친 처리수는 이후 제1무산소조(30)로 이송된다. 본 발명에서의 무산소조는 두개로 이루어지는데 제1무산소조(30)과 제2무산소조(40)으로 이루어지고 이 사이에 호기조(50)이 위치한다. 이 무산소조에서는 상기 SBAR 유출수에 포함되어 있는 유기물과 외부탄소원, 호기조에서 발생한 질산성 질소를 이용한 탈질반응이 일어나는 곳이다.The treated water passed through the flocculation and sedimentation tank 20 is then transferred to the first anoxic tank 30. The anoxic tank according to the present invention is composed of two anoxic tank 30 and a second anoxic tank 40, and an aerobic tank 50 is located therebetween. In this anoxic tank, a denitrification reaction occurs using organic matter contained in the SBAR effluent, an external carbon source, and nitrate nitrogen generated in an aerobic tank.

자세히 설명하면, 이로 유입된 유기물과 고형물이 일부 제거된 SBAR 유출수 및 침전조에서 분리된 슬러지 일부, 그리고 호기조에서 산화 반응을 통하여 생성된 질산성 질소가 포함된 처리수가 모이고, 이와 같이 모인 처리수중의 유기물과 질산성 질소를 이용하여 질산균이 증식하며, 이 과정에서 질산성 질소는 기체상의 질소로 탈질되어 제거된다. 축산폐수의 경우 탄소/질소비가 낮으므로 부족한 유기탄소원을 공급하기 위해 별도로 공급하는 것이 바람직하다. 메탄올은 제1무산소조(30)와 제2무산소조(40)에 동시에 주입할 수 있으나 대부분의 탈질은 제2무산조(40)에서 일어난다. 그리고 고농도 암모니아성 질소 제거에 있어서 각 반응조의 pH조정은 가장 중요한 운전인자이므로 알칼리제를 주입하여 무산소조의 pH를 8.5정도로 유지시킴으로써 아질산과 암모니아에 의한 독성이 유발되지 않도록 한다. 제1무산소조(30)와 제2무산소조(40)의 체류시간은 각각 3일, 1일로 유지하는 것이 바람직하다.In detail, the SBAR effluent from which organic matter and solids are partially removed, the sludge separated from the sedimentation tank, and the treated water containing nitrate nitrogen produced through the oxidation reaction in the aerobic tank are collected, and the organic matter And nitrate nitrogen is used to grow nitric acid bacteria. In this process, nitrate nitrogen is removed by gas phase nitrogen. Since livestock wastewater has a low carbon / nitrogen ratio, it is preferable to supply it separately to supply a deficient organic carbon source. Methanol can be simultaneously injected into the first anoxic tank 30 and the second anoxic tank 40, but most of the denitrification takes place in the second anoxic tank 40. And pH adjustment of each reaction tank is the most important factor in removal of high concentration ammonia nitrogen. Therefore, by keeping the pH of the anoxic tank at about 8.5 by injecting alkaline agent, toxicity by nitrous acid and ammonia is not caused. The residence times of the first anoxic tank 30 and the second anoxic tank 40 are preferably maintained at 3 days and 1 day, respectively.

앞서 설명한대로 제1무산소조(30)와 제2무산소조(40) 사이에 호기조(50)가 위치하는데, 호기조(50)는 공기를 주입하여 호기반응이 일어나는 곳으로, 제1무산소조(30)에서 유입되는 유기물이 호기성 미생물에 의하여 산화되어 제거된다. 또한 유입수에 포함된 질소는 질산화 박테리아에 의해 아질산성 질소와 질산성 질소로 전환된다. 호기조(50)의 후단에서 질산성 질소의 탈질을 위해 원수 유량의 1배 내지 4배(Q-4Q)정도를 제1무산소조(30)로 리사이클시킨다. 아질산과 암모니아에 의한 독성이 유발되지 않게 하기 위하여 수산화나트륨 등을 이용하여 호기조를 pH 6.5정도로 유지시키는 것이 바람직하다. 호기조의 체류시간은 약 4일정도로 유지한다. SBAR에서 방출된 인은 미생물에 의해 과잉 섭취되어 제거된다.The aerobic tank 50 is located between the first anoxic tank 30 and the second anoxic tank 40. The aerobic tank 50 is a place where the aerobic reaction occurs by injecting air into the anoxic tank 30, Is oxidized and removed by aerobic microorganisms. The nitrogen contained in the influent is also converted to nitrite nitrogen and nitrate nitrogen by nitrifying bacteria. The first anoxic tank 30 recycles about 1 to 4 times (Q-4Q) of the raw water flow rate for denitrifying nitrate nitrogen at the downstream end of the oxic tank 50. In order to prevent the toxicity by nitrous acid and ammonia, it is preferable to maintain the pH of the oxic tank at about 6.5 by using sodium hydroxide or the like. The residence time of the oxic tank is kept about 4 days. Phosphorus released from SBAR is over-consumed by microorganisms and is removed.

상기 호기조(50)를 거친 처리수는 다시 상기 제2무산소조(40)로 이송되어 처리되고 침전조(60)로 이송되어 여기서 상징수와 침전슬러지로 고액분리된다. 침전슬러지의 일부(0.5Q-Q)는 제1무산소조(30)로 반송되어 탈질과 유기물 제거에 이용되며, 잉여슬러지를 배출시킨다. 이 잉여슬러지는 슬러지 처리 공정을 통해 처리된 후 처분되거나 유효자원으로 재활용된다.The treated water passing through the oxic tank 50 is again transferred to the second anoxic tank 40, processed and transferred to the settling tank 60 where it is separated into the representative water and the sedimentation sludge. A portion (0.5Q-Q) of the sedimentation sludge is transported to the first anoxic tank 30 and used for denitrification and organic matter removal, and discharges surplus sludge. This surplus sludge is treated through the sludge treatment process and then disposed of or recycled as an effective resource.

제2무산소조(40)의 처리수중 탈질된 질소가스가 미생물 플럭 표면에 부착될 경우 슬러지 침전성이 악화되므로 처리수를 유입시켜 폭기시키는 재폭기조(70)를 두어 여기서 폭기를 통해 질소가스를 제거하여 잔류 유기물을 완전산화시킨다. 이와 같은 공정을 거치면 이후 침전조의 침강성이 좋아져 제거효율이 높아지게 된다. 이 재폭기조(70)에서의 체류시간은 0.5일 정도가 바람직하다.When the denitrified nitrogen gas in the second anoxic tank 40 adheres to the microbial flock surface, the sludge settling ability deteriorates. Therefore, a re-aeration tank 70 for introducing treated water into the aeration tank 70 is provided, Complete oxidation of residual organics. Through such a process, the settlement efficiency of the sedimentation tank is improved and the removal efficiency is improved. The residence time in the re-aeration tank 70 is preferably about 0.5 days.

상술한 구성을 갖는 본 발명의 축산폐수 처리시스템에 따르면 다음과 같은 특징과 장점을 갖는다.The livestock wastewater treatment system of the present invention having the above-described configuration has the following features and advantages.

기존의 축산폐수 처리공정과는 달리 고농도 고형물 및 유기물을 포함한 축산폐수에 적합하며 안정된 처리효율 얻을 수 있고, 유입수의 변동에 탄력적으로 대처 가능하며, 특별한 전처리시설이 불필요하다.Unlike the existing livestock wastewater treatment process, it is suitable for livestock wastewater containing high concentration solid and organic matter. It can obtain stable treatment efficiency, can cope with fluctuation of inflow water flexibly, and does not require special pretreatment facility.

그리고 방류수의 BOD와 총질소의 양을 낮게 안정적으로 유지가능하고, SBAR공정에서 바이오가스로서 메탄가스가 발생하기 때문에 이를 수집하여 연료로 재이용이 가능하게 된다.The amount of BOD and total nitrogen in effluent water can be kept low and stable, and methane gas is generated as a biogas in the SBAR process, which can be collected and reused as fuel.

또한 기존 재래식 축산폐수처리공정을 본 공정으로 쉽게 변경할 수 있어 기존 처리시설의 활용을 최대한 할 수 있으며, 패키지화 가능하다.In addition, the existing conventional livestock wastewater treatment process can be easily changed to the present process, and the utilization of the existing treatment facilities can be maximized and packaged.

Claims (3)

축산폐수의 처리를 위한시스템에 있어서,A system for the treatment of livestock wastewater, 각각은원수인 축산폐수를 반응조에 채운후, 교반을 시키면서 생물학적 반응이 이루어진 후 교반을 멈추고, 침전시킨 다음 상징수를 배출시키는 과정으로 이루어지며축산폐수의 유입과 처리수의 유출이 병렬로 이루어질 수 있도록 하는복수개의 연속회분식 혐기성반응조; Each of them is filled with livestock wastewater, which is raw water, and then the biological reaction is performed by stirring. Thereafter, stirring is stopped, sedimentation is performed, and then the water of symbol is discharged, and the inflow of livestock wastewater and the outflow of treated water can be performed in parallel A plurality of continuous batch anaerobic reactors; 상기연속회분식 혐기성공정을 거친 처리수에 응집제를 주입하여 침전시키는 응집침전조;A coagulating sedimentation tank for injecting coagulant into the treated water after the continuous batch anaerobic process to precipitate; 유입된 상기 응집침전조의 상등수중의 유기물과 질산성 질소를 이용하여 질산균이 증식하며, 이 과정에서 질산성 질소는 기체상의 질소로 탈질되어 제거되는 제1무산소조;A first anoxic tank in which nitrate bacteria are proliferated by using organic matter and nitrate nitrogen in the supernatant of the flocculation and sedimentation tank, and nitrate nitrogen is denitrified by gaseous nitrogen in the process; 유입된 상기 제1무산소조를 거친 처리수에 공기를 공급하여 이 처리수중의 유기물을 호기성 미생물에 의해 산화 제거시키고, 일부 처리수를 상기 제1무산소조로 반송시키는 호기조;An aerobic tank for supplying air to the treated water passing through the first anoxic tank, oxidizing and removing aerobic organic matter from the treated water by aerobic microorganisms, and returning some treated water to the first anoxic tank; 유입된 상기 호기조를 거친 처리수에 포함된 질산성 질소를 질산균을 이용하여 제거하는 제2무산소조;A second anoxic tank for removing nitrate nitrogen contained in the treated water flowing through the aerobic tank through use of nitric acid bacteria; 상기 제2무산소조를 거친 처리수에 공기를 주입하여 슬러지 플록의 질소를 제거시키는 재폭기조; 및A re-aeration tank for injecting air into the treated water passed through the second anoxic tank to remove nitrogen in the sludge flocs; And 상기 재폭기조를 거친처리수의 고형물을 침전 분리시키고 일부 침전물은 상기 제1무산소조 반송시키는 침전조로 이루어진 일련의 공정을 거쳐 축산폐수를 처리하는 축산폐수 처리시스템. The material separating the precipitated solids from the treated water passed through the aeration tank and some precipitate is livestock waste water treatment system for processing livestock waste water through a series of processes consisting of a settling tank for conveying the first anoxic tank. 삭제delete 삭제delete
KR1020000018192A 2000-04-07 2000-04-07 High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR KR100440748B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000018192A KR100440748B1 (en) 2000-04-07 2000-04-07 High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000018192A KR100440748B1 (en) 2000-04-07 2000-04-07 High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR

Publications (2)

Publication Number Publication Date
KR20010094836A KR20010094836A (en) 2001-11-03
KR100440748B1 true KR100440748B1 (en) 2004-07-19

Family

ID=19662483

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000018192A KR100440748B1 (en) 2000-04-07 2000-04-07 High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR

Country Status (1)

Country Link
KR (1) KR100440748B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1303013C (en) * 2004-06-01 2007-03-07 同济大学 Biological treating method for decreasing comprehensive toxic of urban waste water
GB2436426B (en) * 2005-10-10 2011-05-04 Clearfleau Ltd Wastewater treatment method
CN102531300B (en) * 2012-03-07 2013-10-30 中国环境科学研究院 Method for treating organic nitrogen in sewage
CN103449672B (en) * 2013-09-05 2015-04-15 湖北特微生物环保有限公司 Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry
CN105948398A (en) * 2016-06-21 2016-09-21 福建禹环境科技有限公司 Comprehensive treatment method for livestock and poultry breeding wastewater
CN106007224B (en) * 2016-07-14 2019-10-18 胡大苇 A kind of denitrogenation dephosphorizing set composite and its denitrification and dephosphorization method
CN111807626A (en) * 2020-07-16 2020-10-23 无锡国联环保科技股份有限公司 Wastewater treatment system and process for sludge and blue-green algae synergistic deep dehydration
CN112142262B (en) * 2020-09-28 2023-12-19 北京恩菲环保技术有限公司 Low-CN municipal sewage advanced treatment system and method based on multistage AO side-stream dephosphorization technology

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187097A (en) * 1981-05-15 1982-11-17 Ebara Infilco Co Ltd Treatment of organic waste water
JPS6038094A (en) * 1983-08-08 1985-02-27 Nippon Kokan Kk <Nkk> Treatment of organic sewage
KR880013826A (en) * 1987-05-30 1988-12-22 구미자와 게이스께 Treatment method of high concentration organic wastewater
KR970042332A (en) * 1997-04-18 1997-07-24 백운화 Advanced treatment method of manure and its device
KR19990081269A (en) * 1998-04-28 1999-11-15 양인모 Wastewater Treatment System
KR20000019567A (en) * 1998-09-09 2000-04-15 김윤규, 정주영, 심옥진, 정몽헌 Tertiary process using biological method.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187097A (en) * 1981-05-15 1982-11-17 Ebara Infilco Co Ltd Treatment of organic waste water
JPS6038094A (en) * 1983-08-08 1985-02-27 Nippon Kokan Kk <Nkk> Treatment of organic sewage
KR880013826A (en) * 1987-05-30 1988-12-22 구미자와 게이스께 Treatment method of high concentration organic wastewater
KR970042332A (en) * 1997-04-18 1997-07-24 백운화 Advanced treatment method of manure and its device
KR19990081269A (en) * 1998-04-28 1999-11-15 양인모 Wastewater Treatment System
KR20000019567A (en) * 1998-09-09 2000-04-15 김윤규, 정주영, 심옥진, 정몽헌 Tertiary process using biological method.

Also Published As

Publication number Publication date
KR20010094836A (en) 2001-11-03

Similar Documents

Publication Publication Date Title
US8864993B2 (en) Process for removing ammonium from a wastewater stream
AU731280B2 (en) Process, using ammonia rich water for the selection and enrichment of nitrifying micro-organisms for nitrification of wastewater
US5213681A (en) Method for biologically removing nitrogen from wastewater
US11878926B2 (en) Mainstream deammonification process employing bypass primary effluent and step feeding
JP2000093998A (en) Method and apparatus for treating high-concentration waste water
KR100440748B1 (en) High-Rate Live Stock Wastewater Treatment Method using Advanced Treatment Process Hybrid SBAR
KR100304544B1 (en) Method for removing nitrogen and phosphorus using anaerobic digestion
KR100430382B1 (en) Treatment method for livestock waste water including highly concentrated organoc, nitrogen and phosphate and treatment system used therein
KR100293568B1 (en) Biological treatment device for leather wastewater and sludge reduction
KR100432645B1 (en) Method and System for treating wastewater which contains high organic matter, nitrogen and phosphorus
KR100331898B1 (en) Advanced Treatment Process of Domestic Wastewater by Biological and Chemical
KR100705541B1 (en) A configuration of process and system for bnr/cpr with a filamentous bio-solids bulking control
EP3778500B1 (en) Cow excreta treatment apparatus and method
KR20010045253A (en) Advanced method for treating wastewater and apparatus therefor
KR100321679B1 (en) Advanced wastewater treatment method
CN113149215A (en) Middle-placed aeration denitrification treatment method for papermaking wastewater
KR100415437B1 (en) Advanced sludge reaeration process improving denitrification rate for nutrient removal
KR100460851B1 (en) Sewage and wastewater treatment apparatus which is no need internal recycle
KR0129831B1 (en) A process for sewage treatment wsing denitrification and dephosphorization
KR100321363B1 (en) SBNR : Sequencing Biological Nutrient Removal System.
KR101877208B1 (en) Membrane separation water treatment system with reverse osmosis membrane concentrated water treatment facility
Karlsson et al. Use of internal carbon from sludge hydrolysis in biological wastewater treatment
CN115745170A (en) Nitration short-cut denitrification anaerobic ammonia oxidation system and method
KR20000036253A (en) Waste water treatment apparatus
KR100318368B1 (en) Wastewater Treatment System

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130104

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee