KR100316688B1 - A waste water disposal apparatus - Google Patents
A waste water disposal apparatus Download PDFInfo
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- KR100316688B1 KR100316688B1 KR1019990031385A KR19990031385A KR100316688B1 KR 100316688 B1 KR100316688 B1 KR 100316688B1 KR 1019990031385 A KR1019990031385 A KR 1019990031385A KR 19990031385 A KR19990031385 A KR 19990031385A KR 100316688 B1 KR100316688 B1 KR 100316688B1
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- tank
- aeration tank
- contact aeration
- contact
- tanks
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- 239000002351 wastewater Substances 0.000 title description 3
- 238000005273 aeration Methods 0.000 claims abstract description 78
- 239000010865 sewage Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 24
- 230000000813 microbial effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000012546 transfer Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000000356 contaminant Substances 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 244000005700 microbiome Species 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 2
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 8
- 230000008719 thickening Effects 0.000 abstract 3
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- 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)
- Biological Treatment Of Waste Water (AREA)
Abstract
본 발명은 대형 협잡물을 걸러내는 스크린, 유입 오수의 유량을 조절하는 유량조정조 및 유량조정피트, 미생물 접촉재를 포함하는 접촉폭기조, 접촉폭기조에 의해 처리된 처리수내의 부유물질을 제거하는 침전조, 방류조, 침전조에 의해 침전된 고형물을 저장하는 농축조 및 농축조에 저장된 고형물을 농축시키는 농축저류조, 접촉폭기조내에 공기를 공급하는 브로아, 브로아에 의해 공급된 공기를 작게 산포시키는 산기관 및 각각의 처리조 사이의 오수의 이송을 담당하는 이송펌프로 구성된 오수처리장치에 있어서, 상기 접촉폭기조가 체류 시간이 약 22-26 시간 되는 제 1 접촉폭기조와 체류 시간이 1시간 내지 3시간인 제 2 접촉폭기조의 2 단으로 구성되며, 상기 침전조가 제 1 접촉폭기조 다음단에 설치된 제 1 침전조 및 제 2 접촉폭기조 다음단에 설치된 제 2 침전조의 2조로 구성되어 있는 것을 특징으로 하는 오수처리장치에 관한 것으로, 본 발명의 오수처리장치는 물리, 화학적 처리장치를 별도로 추가하지 않고도 처리수 BOD 및 SS가 각각 5ppm 이하가 되도록 고효율로 오수처리를 행할 수 있는 이점을 갖는다.The present invention provides a screen for filtering large contaminants, a flow regulating tank for adjusting the flow rate of influent sewage, a flow regulating feet, a contact aeration tank including a microbial contact material, a sedimentation tank for removing suspended solids in the treated water treated by the contact aeration tank, and discharge. Between the tank, a thickening tank for storing the solids precipitated by the settling tank, a thickening tank for condensing the solids stored in the thickening tank, a broa for supplying air in the contact aeration tank, a diffuser for small dispersion of the air supplied by the broa, and each treatment tank. A sewage treatment apparatus composed of a transfer pump that is responsible for the transfer of sewage, the contact aeration tank comprising: a first contact aeration tank having a residence time of about 22-26 hours and a second contact aeration tank having a residence time of 1 hour to 3 hours. It is composed of stages, the settling tank is installed in the next stage of the first settling tank and the second contact aeration tank installed after the first contact aeration tank A sewage treatment apparatus comprising two sets of second settling tanks, wherein the sewage treatment apparatus of the present invention has high efficiency such that treated water BOD and SS are each 5 ppm or less without additional physical and chemical treatment apparatuses. This has the advantage of being able to perform sewage treatment.
Description
본 발명은 2단 접촉폭기조를 이용한 오수처리장치에 관한 것으로, 더욱 상세하게는 체류시간 22-26시간의 제 1 접촉폭기조 및 체류시간 1-3시간의 제 2 접촉폭기조를 포함하여 오수내 BOD, SS를 5ppm 이하로 감소시킬 수 있는 것을 특징으로 하는 오수처리장치에 관한 것이다.The present invention relates to a sewage treatment apparatus using a two-stage contact aeration tank, and more particularly, a BOD in sewage, including a first contact aeration tank having a residence time of 22-26 hours and a second contact aeration tank having a residence time of 1-3 hours, The present invention relates to a sewage treatment apparatus which can reduce SS to 5 ppm or less.
최근 생활하수로 인한 하천, 호수의 오염이 심각한 문제점으로 대두되면서방류수 수질에 대한 기준을 강화하고 있는 추세이다. 구체적으로, 하수의 오염도를 평가할 수 있는 파라미터 중에서 가장 중요한 BOD(생화학적산소요구량) 및 SS(부유물질량)를 각각 10ppm 이하로 처리하여 방류하도록 규제하고 있다. 따라서, 설비의 조작이 간편하고, 별도의 유지관리가 필요 없으면서도 방류수의 BOD 및 SS를 10ppm 이하로 처리할 수 있는 고도의 처리능력을 갖는 오수처리장치의 개발이 절실하게 요구되고 있는 형편이다.Recently, the pollution of rivers and lakes caused by domestic sewage has become a serious problem, and the standard of discharged water quality has been strengthened. Specifically, among the parameters for evaluating the degree of pollution of sewage, the most important BOD (biochemical oxygen demand) and SS (float amount) are treated to be discharged to 10 ppm or less. Therefore, there is an urgent need for the development of a sewage treatment apparatus having a high treatment capacity capable of easily operating a facility and treating BOD and SS of discharged water to 10 ppm or less without requiring separate maintenance.
오수처리 방법 가운데 화학약품을 이용하는 화학적 처리공법은 이용된 화학약품이 추가적인 오염을 유발하기 때문에 생물학적 처리공법이 각광을 받고 있다. 현재 생물학적 오수처리방법으로는 활성오니법, 접촉산화법 및 회전원판법이 주로 사용되고 있는데, 이들 가운데 활성오니법은 처리수질은 우수한 반면, 부유 미생물 농도를 유지하기 위한 정교한 기술이 필요하고 벌킹 현상 등 부작용이 발생되는 문제점이 있어 식당, 여관 등의 소규모 오수처리시설로는 부적합한 한계가 있다.Among the sewage treatment methods, the chemical treatment method using chemicals has received much attention because biological treatment methods cause additional pollution. Currently, activated sludge process, catalytic oxidation method and rotating disc method are mainly used as biological sewage treatment methods. Among them, activated sludge process is excellent in treated water quality, but requires sophisticated technology to maintain the concentration of suspended microorganisms and side effects such as bulking phenomenon. Due to this problem, there is an inadequate limit to small-scale sewage treatment facilities such as restaurants and inns.
한편, 접촉산화법은 미생물 배양조내에 미생물이 부착성장할 수 있는 미생물 접촉재를 넣어 폭기하는 방법으로, 슬러지 발생이 적고 설비가 간단하며 유지관리가 간편한 이점이 있으나, 처리수의 BOD가 20 내지 30ppm으로 높아 방류수 수질기준을 충족시키기 위해서는 후단처리로 모래여과기, 활성탄흡착탑, 오존산화처리, 화학적 응집처리 등 물리, 화학적 처리방법을 병용해야 하는 단점이 있다. 그러나, 이러한 물리, 화학적처리설비는 대개 고가이고, 유지비용이 많이 들며 운전이 복잡하므로 전문 지식을 가진 관리인이 없으면 제대로 운영되지 못하는 문제점을 갖는다.On the other hand, the catalytic oxidation method is a method of aeration by putting a microorganism contact material that can be attached and grown microorganisms in the microbial culture tank, there is little sludge generation, simple equipment and easy maintenance, but the BOD of the treated water is 20 to 30ppm In order to meet the effluent water quality standards, it is disadvantageous to use a combination of physical and chemical treatment methods such as sand filter, activated carbon adsorption tower, ozone oxidation treatment and chemical flocculation treatment. However, these physical and chemical treatment facilities are usually expensive, expensive to maintain and complicated to operate, so there is a problem in that they cannot operate properly without a manager who has expertise.
본 발명의 목적은 생물학적 처리설비중 설비가 간단하고 유지관리가 간편한접촉폭기조만으로 오수의 BOD 및 SS를 5 ppm 이하로 처리할 수 있는 처리능력이 매우 우수한 오수처리장치를 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a sewage treatment apparatus having a very excellent treatment capacity capable of treating BOD and SS of sewage at 5 ppm or less by only a contact aeration tank having simple facilities and simple maintenance in biological treatment facilities.
즉, 본 발명의 하나의 양상은 대형 협잡물을 걸러내는 스크린, 유입 오수의 유량을 조절하는 유량조정조 및 유량조정피트, 미생물 접촉재를 포함하는 접촉폭기조, 접촉폭기조에 의해 처리된 처리수내의 부유물질을 제거하는 침전조, 방류조, 침전조에 의해 침전된 고형물을 저장하는 농축조 및 농축조에 저장된 고형물을 농축시키는 농축저류조, 접촉폭기조내에 공기를 공급하는 브로아, 브로아에 의해 공급된 공기를 작게 산포시키는 산기관 및 각각의 처리조 사이의 오수의 이송을 담당하는 이송펌프로 구성된 오수처리장치에 있어서, 상기 접촉폭기조가 체류 시간이 약 22-26 시간 되는 제 1 접촉폭기조와 체류 시간이 1시간 내지 3시간인 제 2 접촉폭기조의 2 단으로 구성되며, 상기 침전조가 제 1 접촉폭기조 다음단에 설치된 제 1 침전조 및 제 2 접촉폭기조 다음단에 설치된 제 2 침전조의 2조로 구성되어 있는 것을 특징으로 하는 오수처리장치를 제공하는 것이다.That is, one aspect of the present invention is a screen for filtering large contaminants, a flow regulating tank for adjusting the flow rate of the incoming sewage and a flow regulating feet, a contact aeration tank including a microbial contact material, suspended matter in the treated water treated by the contact aeration tank Sedimentation tank for discharging water, discharge tank, concentration tank for storing solid precipitated by sedimentation tank, concentration storage tank for condensing solids stored in concentration tank, broach for supplying air in contact aeration tank, diffuser for small air scattered by broa And a transfer pump that is responsible for the transfer of wastewater between the respective treatment tanks, wherein the contact aeration tank has a first contact aeration tank having a residence time of about 22-26 hours and a residence time of 1 hour to 3 hours. It consists of two stages of a 2nd contact aeration tank, and the said 1st precipitation tank and the 2nd contact width which the said precipitation tank was installed in the next stage of a 1st contact aeration tank. To provide a sewage treatment apparatus, characterized in that consists of twos, section 2 of the second settling tank is installed in the following stage.
도 1은 본 발명의 2단 접촉폭기조를 구비하는 오수처리장치의 개략도,1 is a schematic diagram of a sewage treatment apparatus having a two-stage contact aeration tank of the present invention,
도 2a는 도 1의 오수처리장치의 제 1 접촉폭기조의 미생물 접촉재 및 산기관의 설치 방법을 설명한 측면도,FIG. 2A is a side view illustrating a method for installing microbial contact material and diffuser in a first contact aeration tank of the sewage treatment apparatus of FIG. 1; FIG.
도 2b는 도 1의 오수처리장치의 제 1 접촉폭기조의 미생물 접촉재 및 산기관 설치를 설명한 단면도,Figure 2b is a cross-sectional view illustrating the installation of microorganism contact material and diffuser in the first contact aeration tank of the sewage treatment apparatus of Figure 1,
도 3은 도 1의 오수처리장치의 제 2 접촉폭기조의 구조도이다.3 is a structural diagram of a second contact aeration tank of the sewage treatment apparatus of FIG. 1.
이하에서 첨부 도면을 참조하여 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
본 발명의 2단 접촉폭기조를 이용한 오수처리장치는 도 1과 같이 구성된다.즉 본 발명의 오수처리장치는 스크린(1), 유량조정조(2), 유량조정피트(3), 제1접촉폭기조(4), 제 1 침전조(5), 제 2 접촉폭기조(6), 제 2 침전조(7), 방류조(8), 농축조(9), 농축저류조(10), 브로아(11), 미생물 접촉재(12), 산기관(13), 및 이송펌프(14)로 구성된다.The sewage treatment apparatus using the two-stage contact aeration tank of the present invention is configured as shown in Fig. 1. That is, the sewage treatment apparatus of the present invention comprises a screen (1), a flow regulating tank (2), a flow regulating feet (3), a first contact aeration tank. (4), the first precipitation tank (5), the second contact aeration tank (6), the second precipitation tank (7), the discharge tank (8), the concentration tank (9), the concentrated storage tank (10), broa (11), microbial contact The ash 12, the diffuser 13, and the transfer pump 14 are comprised.
본 발명의 장치중 스크린(1)은 큰 협잡물을 걸러내는 장치로 협잡물의 유입정도와 크기를 고려하여 바스크린과 일정 격자의 씨브 스크린을 혼용하여 사용한다.Screen (1) of the device of the present invention is a device for filtering large contaminants in consideration of the degree of inflow and size of the contaminant is used by mixing the bar screen and the sieve screen of a certain grid.
상기 스크린(1) 다음단에 설치되는 유량조정조(2)는 유입되는 오수를 제 1 접촉폭기조(4)에 균등하게 보내기 위한 장치로, 1일 배출시간이 12시간일 경우 6시간 이상 체류하고, 6시간일 경우 15시간 이상 체류하는 용적을 갖도록 하며, 혐기화되는 것을 방지하기 위하여 조용량 1㎥당 1㎥/분의 공기를 주입하여 고루 섞이도록 하여준다.The flow rate adjusting tank 2 installed at the next stage of the screen 1 is an apparatus for sending the incoming sewage to the first contact aeration tank 4 evenly. In case of 6 hours, it should have a volume that stays for more than 15 hours, and in order to prevent anaerobic, inject 1㎥ / min of air per 1㎥ of crude volume and mix it evenly.
유량조정피트(3)는 유량조정조(2)의 오수가 일정량씩 제 1 접촉폭기조(4)로 이송되도록 하는 장치로, 이송되는 양을 측정하기 위한 V자형 홈과 유량조정조(2)로 되돌리기 위한 개폐장치를 구비한다.The flow adjusting feet 3 are devices for allowing the wastewater of the flow adjusting tank 2 to be conveyed to the first contact aeration tank 4 by a predetermined amount, and return to the V-shaped groove and the flow adjusting tank 2 for measuring the amount of conveyed water. A switchgear is provided.
본 발명의 오수처리장치는 접촉폭기조가 체류시간이 22-26 시간인 제 1 접촉폭기조와 체류시간이 1-3 시간인 제 2 접촉폭기조의 2 단으로 구성된 것을 특징으로 하며, 각각의 접촉폭기조에는 미생물 부착을 위한 미생물접촉재(12)가 설치되는데, 미생물 접촉재의 설치량은 제 1 접촉폭기조에는 폭기조 용적당 30 내지 80m의 미생물 접촉재가 설치되고, 상기 제 2 접촉폭기조에는 폭기조 용적당 100 내지400m의 미생물 접촉재가 설치된다.The sewage treatment apparatus of the present invention is characterized in that the contact aeration tank is composed of two stages: a first contact aeration tank having a residence time of 22 to 26 hours and a second contact aeration tank having a residence time of 1-3 hours. The microbial contact material 12 for microorganism attachment is installed, the installation amount of the microbial contact material is installed in the first contact aeration tank 30 to 80m of microbial contact material per aeration tank volume, the second contact aeration tank of 100 to 400m per volume of aeration tank Microbial contact materials are installed.
구체적으로, 제1 접촉폭기조(4)의 용적은 오수의 체류시간이 22-26 시간이 되도록 하며, BOD 부하에 대한 충격부하를 예방하기 위하여 2실, 3실, 또는 4실로 실을 구분하면 더욱 좋다. 2실로 구분할 경우에는 제 1실이 60%, 제 2실이 40%가 되도록 하고, 3실로 구분할 경우에는 제 1실이 50%, 제 2실이 30%, 제 3실이 20%가 되게 하며, 4실로 구분할 경우에는 제 1실이 40%, 제2실이 30%, 제 3실이 15%, 제 4실이 15%가 되는 것이 바람직하다.Specifically, the volume of the first contact aeration tank 4 is such that the retention time of the sewage is 22-26 hours, and in order to prevent the impact load on the BOD load, the chamber is divided into two, three, or four chambers. good. In case of dividing into two rooms, 60% of the first room and 40% of the second room should be divided into 50% of the first room, 30% of the second room, and 20% of the third room. In case of dividing into four rooms, it is preferable that the first room is 40%, the second room is 30%, the third room is 15%, and the fourth room is 15%.
미생물 접촉재를 제 1 접촉폭기조(4)에 설치하는 방법 및 산기관 설치 방법을 도 2에 개략적으로 도시하였다. 제 1 접촉폭기조내에 미생물 접촉재를 설치하는 경우에는, 미생물 접촉재(12)의 폐색 현상 및 그에 따른 부패현상을 방지하기 위하여 접촉폭기조와 미생물 접촉재 사이에 일정한 간격을 위 아래 방향으로 걸어주는 것이 좋다. 일례로 제 1 접촉폭기조의 벽면과 미생물 접촉재 사이의 간격(a)은 300-500㎜ 되는 것이 필요하고, 미생물 접촉재는 제 1 접촉폭기조내 수면하 300-500㎜의 간격(b)을 두고 설치되는 것이 바람직하다. 또한, 미생물 접촉재는 바닥으로부터 소정의 간격(c), 바람직하게 400-700㎜의 간격을 두고 설치되는 것이 바람직하며, 산기관이 미생물 접촉재 사이에 설치되는 경우에는 미생물 접촉재 사이의 간격(d)은 600-1000㎜ 정도 확보되는 것이 필요하다.The method for installing the microbial contact material in the first contact aeration tank 4 and the method for installing the diffuser are schematically shown in FIG. In the case of installing the microbial contact material in the first contact aeration tank, in order to prevent the blockage of the microbial contact material 12 and the resulting decay, it is necessary to walk a predetermined distance between the contact aeration tank and the microbial contact material in the up and down direction. good. For example, the distance (a) between the wall of the first contact aeration tank and the microbial contact material needs to be 300-500 mm, and the microbial contact material is installed at a distance (b) of 300-500 mm under water in the first contact aeration tank. It is desirable to be. In addition, the microbial contact material is preferably installed at a predetermined distance (c), preferably 400-700mm from the bottom, and, if the diffuser is installed between the microbial contact materials (d) ) Needs to be secured about 600-1000 mm.
본 발명의 오수처리장치중 제 1 및 제 2 접촉폭기조에 설치되는 미생물접촉재(12)는 접촉폭기조의 오염물질 제거효율을 결정하는 가장 중요한 요소로, 표면적이 넓을수록 다량의 미생물을 보유할 수 있어 처리효율이 좋아지기 때문에 단위 길이당 표면적이 1.0㎡ 이상의 것을 사용하는 것이 좋으며, 재질로는 나이론, 폴리염화비닐리덴 등 내약품성 및 내구성이 큰 합성섬유가 좋다.The microbial contact material 12 installed in the first and second contact aeration tanks of the sewage treatment apparatus of the present invention is the most important factor that determines the removal efficiency of the contaminants in the contact aeration tank, and the larger the surface area, the greater the number of microorganisms. In order to improve the treatment efficiency, it is recommended to use a surface area of 1.0 m2 or more per unit length. Synthetic fibers having high chemical resistance and durability such as nylon and polyvinylidene chloride are preferable.
제 1 접촉폭기조(4)는 오수내의 BOD 및 SS를 제거하는 주장치로 약 90에서 95%의 BOD가 제거된다. 일반적으로 오수 원수의 BOD 및 SS는 200ppm 정도이므로 제 1 접촉폭기조(4)를 거친 처리수의 BOD 및 SS는 10 내지 20ppm 정도가 된다.The first contact aeration tank 4 is a main device for removing BOD and SS in the sewage, and about 90 to 95% of the BOD is removed. In general, since the BOD and SS of the raw sewage water are about 200 ppm, the BOD and SS of the treated water having passed through the first contact aeration tank 4 are about 10 to 20 ppm.
제 1 침전조(5)는 제 1접촉폭기조에서 처리된 처리수내의 부유물질을 제거하기 위한 장치로, 그 수면적부하는 30㎥/㎡.day가 적당하다. 여기에서 고형물은 하부로 침전되며 처리수는 웨어를 통해 다음 처리과정으로 이송되게 된다. 하부에 가라 앉은 고형물은 주기적으로 농축조(9)로 이송된다.The first settling tank 5 is a device for removing suspended matter in the treated water treated in the first contact aeration tank, and its water surface load is suitably 30 m 3 / m 2 .day. Here, the solids settle to the bottom and the treated water is transferred to the next treatment through the weir. Solids settled in the lower part are periodically transferred to the concentration tank (9).
본 발명의 가장 큰 특징은 제 1 접촉폭기조(4) 용량의 1/10 정도의 크기인 제 2 접촉폭기조(6)로, 이는 제 1 접촉폭기조(4)에서 미처 처리되지 못한 잔여 BOD 및 SS를 5ppm 이하로 처리할 수 있도록 하는 것이다. 제 2 접촉폭기조(6)의 용량은 체류시간이 1-3시간이 되도록 하며 1실로 구성한다. 제 2접촉폭기조(6)내에는 제 1 접촉폭기조와 마찬가지로 미생물접촉재(12)가 설치되는데, 폭기조 용적당 100 내지 400m의 미생물 접촉재를 촘촘히 설치하는 것이 바람직하다. 또한, 도 3에 도시된 바와 같이, 미생물 접촉재(12)는 제 2접촉폭기조(6) 전면에 설치하여 바이오필터의 역할을 하도록 하며 전면폭기되도록 산기관(13)을 전면에 설치한다. 제 2 접촉폭기조(6)는 일정 시간 가동되면 바이오필터링에 의한 눈막힘현상이 발생되어 처리효율이 떨어지게 되는데, 이 때 상기 산기관(13)은 눈막힘현상을 제거하기 위해 이용될 수 있다. 제 2 접촉폭기조(6)에서 산기관(13)은 약한 압력으로 공기가 분사되는 경우에는 본래의 산기관 역할을 하게 되는데, 눈막힘 현상을 제거하기 위하여 강하게 공기를 불어넣어 주는 경우에는 과도하게 부착된 미생물들을 탈리시키는 탈리장치의 역할을 하게 된다. 본 발명의 제 2 접촉폭기조의 바닥은 탈리된 미생물을 이송펌프(14)쪽으로 모아 제거할 수 있도록 경사지게 구성된다. 이러한 경사면을 따라 이송펌프쪽에 수집되는 탈리된 미생물들은 탈리 미생물 제거장치의 기능을 담당하는 이송펌프(14)에 의해 전량 농축조(9)로 취출된다. 상술한 바와 같이 본 발명에서 제 2 접촉폭기조(6)는 제 1 접촉폭기조(4)에서 분해되지 않은 잔여 BOD 및 SS를 완벽히 제거하는 역할을 하며 제 2 접촉폭기조(6)를 거친 처리수의 BOD 및 SS는 5ppm 이하가 된다.The biggest feature of the present invention is the second contact aeration tank 6, which is about 1/10 the capacity of the first contact aeration tank 4, which is used to remove residual BOD and SS that have not been treated in the first contact aeration tank 4. It is to be able to process below 5ppm. The capacity of the second contact aeration tank 6 is such that the residence time is 1-3 hours and constitutes one chamber. In the second contact aeration tank 6, as in the first contact aeration tank, a microbial contact material 12 is installed, preferably 100 to 400 m of microbial contact material per aeration tank volume. In addition, as shown in Figure 3, the microbial contact material 12 is installed on the front of the second contact aeration tank (6) to act as a biofilter and to install the diffuser 13 to the front aeration. When the second contact aeration tank 6 is operated for a predetermined time, clogging due to biofiltering is generated, thereby reducing processing efficiency. In this case, the diffuser 13 may be used to remove the clogging. In the second contact aeration tank 6, the diffuser 13 serves as the original diffuser when air is injected at a weak pressure, but is excessively attached when strongly blowing air to remove a clogging phenomenon. It acts as a desorption device to desorb the microorganisms. The bottom of the second contact aeration tank of the present invention is configured to be inclined to collect and remove the detached microorganism toward the transfer pump (14). The desorbed microorganisms collected along the inclined plane toward the transfer pump are taken out to the concentration tank 9 by the transfer pump 14 which functions as the desorption microorganism removal device. As described above, in the present invention, the second contact aeration tank 6 serves to completely remove residual BOD and SS that are not decomposed in the first contact aeration tank 4 and the BOD of the treated water that has passed through the second contact aeration tank 6. And SS is 5 ppm or less.
제 2 침전조(7)는 제 1 침전조(5)와 마찬가지로 탈리된 미생물을 제거하는 역할을 하게 되며 하부에 가라 앉은 고형물은 주기적으로 농축조(9)로 이송된다. 이와 같이 처리된 물은 방류조(8)를 거쳐 소독된 후 방류된다.Like the first precipitation tank 5, the second precipitation tank 7 serves to remove the desorbed microorganisms, and the solids settled to the lower portion are periodically transferred to the concentration tank 9. The water treated in this way is disinfected through the discharge tank 8 and then discharged.
그리고 농축조(9)는 제 1 침전조(5) 및 제 2 침전조(7)에 가라앉은 고형물을 저장하는 역할을 하며 저장된 고형물을 다시 한번 농축시키기 위해서는 농축저류조(10)를 설치하는 것이 좋다. 또한 농축조(9)의 상등액은 유량조정조(2)로 넘어갈 수 있도록 배관으로 연결한다.And the concentration tank (9) serves to store the solids submerged in the first settling tank (5) and the second settling tank (7), it is preferable to install the concentrated storage tank (10) in order to concentrate the stored solids once again. In addition, the supernatant of the concentration tank (9) is connected to the pipe so as to pass to the flow adjustment tank (2).
브로아(11)는 접촉폭기조내에 공기를 공급하는 장치이며, 유량조정조(2)에서 제 1접촉폭기조(4), 제 2접촉폭기조(6)에서 농축조(9), 농축조에서 농축저류조(10) 사이의 오수 또는 처리수의 이송은 이송펌프(14)로 하며 나머지는 수위차에 의한 자연유하 방식을 이용한다.The broa (11) is a device for supplying air into the contact aeration tank, between the first contact aeration tank (4) in the flow rate adjustment tank (2), the concentration tank (9) in the second contact aeration tank (6), and the concentration storage tank (10) in the concentration tank. The sewage or treated water is transferred to the transfer pump 14 and the rest uses a natural flow method due to water level difference.
2단의 접촉폭기조를 포함하는 본 발명의 오수처리장치는 미생물을 이용한 접촉산화장치만으로 BOD 및 SS를 5ppm 이하로 처리할 수 있는 것으로, 처리효율이 뛰어나 추가적인 물리, 화학적 처리장치가 별도로 필요없을 뿐 아니라, 유지관리가 간단하고, 유지비용이 적으며, 슬러지 발생량이 적고 벌킹현상이 없는 장점을 가지고 있어, 고효율로 오수처리를 행할 수 있다.The sewage treatment apparatus of the present invention including a two-stage contact aeration tank is capable of treating BOD and SS to 5 ppm or less using only a contact oxidation apparatus using microorganisms, and is excellent in treatment efficiency and does not require an additional physical and chemical treatment apparatus. In addition, it has the advantages of simple maintenance, low maintenance cost, low sludge generation and no bulking phenomenon, and can perform sewage treatment with high efficiency.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100380321B1 (en) * | 2000-09-26 | 2003-04-16 | 주식회사 장호 | The high efficiency apparatus for purifying be high efficiency of fluid contact agent and the fixture contact agent |
| KR100460279B1 (en) * | 2001-02-27 | 2004-12-08 | 산요덴키가부시키가이샤 | Sewage treatment unit |
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| KR100794198B1 (en) * | 2006-09-28 | 2008-01-11 | 이경섭 | Suspension contact 2nd sewage disposal system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR950011768A (en) * | 1993-10-08 | 1995-05-16 | 김진태 | Manufacturing method of sliding pad for bridge |
| KR0131717Y1 (en) * | 1996-07-02 | 1999-10-01 | 이경섭 | Waste water purifying equipment using highly concentrated microorganism |
| KR100265060B1 (en) * | 1998-03-21 | 2000-09-01 | 김수원 | Waste water treatment method using alternating operation of aeration tank for minimizing sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950011768A (en) * | 1993-10-08 | 1995-05-16 | 김진태 | Manufacturing method of sliding pad for bridge |
| KR0131717Y1 (en) * | 1996-07-02 | 1999-10-01 | 이경섭 | Waste water purifying equipment using highly concentrated microorganism |
| KR100265060B1 (en) * | 1998-03-21 | 2000-09-01 | 김수원 | Waste water treatment method using alternating operation of aeration tank for minimizing sludge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100380321B1 (en) * | 2000-09-26 | 2003-04-16 | 주식회사 장호 | The high efficiency apparatus for purifying be high efficiency of fluid contact agent and the fixture contact agent |
| KR100460279B1 (en) * | 2001-02-27 | 2004-12-08 | 산요덴키가부시키가이샤 | Sewage treatment unit |
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