KR100403864B1 - A wastewater treatment methods - Google Patents
A wastewater treatment methods Download PDFInfo
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- KR100403864B1 KR100403864B1 KR10-2001-0004413A KR20010004413A KR100403864B1 KR 100403864 B1 KR100403864 B1 KR 100403864B1 KR 20010004413 A KR20010004413 A KR 20010004413A KR 100403864 B1 KR100403864 B1 KR 100403864B1
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
본 발명은 유기물의 부식화에 의한 폐수의 처리방법에 관한 것으로서, 본 발명의 목적은 처리장에서의 악취를 제거하면서 방류수질 규제치인 생물학적산소요구량(生物學的酸素要求童 biological oxygen demand :BOD)을 최대한 낮추어 처리하고, 처리수량 및 질소와 인의 제거효율을 높이며, 처리수는 농업용수로 재활용할 수 있어 효과적인 폐수처리가 제공되는 유기물의 부식화에 의한 폐수의 처리방법을 제공함에 있다.The present invention relates to a method for treating wastewater by the decay of organic matter, and an object of the present invention is to remove biological oxygen demand (BOD), which is a discharge water quality regulation value while removing odor from a treatment plant. It is to provide a method of treating wastewater by the lowering of the organic matter, which is treated as low as possible, the treated water and the efficiency of removing nitrogen and phosphorus, and the treated water can be recycled to agricultural water to provide effective wastewater treatment.
본 발명의 상기 목적은 유기물질이 함유된 폐수(원수)를 부식물이 존재하지 않는 인위환경의 유량조정조, 폭기조, 침전조, 오니저류조로 경유시키면서 부식물로 변성시키고, 이를 다시 상기 유량조정조, 폭기조의 폐수의 유입지점으로 일정량을 반복하여 반송하는 것을 특징으로 하는 유기물의 부식화에 의한 폐수의 처리방법에 의하여 달성된다.The object of the present invention is to denature the wastewater (raw water) containing the organic material to the corrosive, while passing through the flow control tank, aeration tank, sedimentation tank, the reservoir tank of the artificial environment in which no corrosive material is present, and again the wastewater of the flow adjustment tank, aeration tank It is achieved by a method for treating wastewater by the corrosiveness of organics, characterized in that a predetermined amount is repeatedly conveyed to the inflow point of.
본 발명에 의하면, 유기물질이 함유된 폐수의 처리장에서 악취가 없어지고, 염소 소독을 하지 않으므로 트리할로메탄 등 발암물질의 생성이 없어 방류에 따른 동식물의 건강에 영향이 없게 되며, 슬러지 발생량이 종전공법에 비하여 1/3 이하로 줄어들게 되어 처리비가 절감될 뿐만 아니라, 항균성이 뛰어나서 하류의 정화작용이 있는 처리수를 제공된다.According to the present invention, there is no odor in the treatment plant of the wastewater containing organic substances, chlorine disinfection, there is no generation of carcinogens such as trihalomethane, there is no effect on the health of animals and plants according to the discharge, sludge generation amount It is reduced to less than one third compared to the conventional method, and not only the treatment cost is reduced, but also has excellent antibacterial property, thereby providing a treated water having a downstream purification action.
Description
본 발명은 유기물의 부식화에 의한 폐수의 처리방법에 관한 것으로서, 보다 상세하게는, 처리장에서의 악취를 제거하면서 방류수질 규제치인 생물학적산소요구량(生物學的酸素要求童 biological oxygen demand :BOD)을 최대한 낮추어 처리하고, 처리수량 및 질소와 인의 제거효율을 높이며, 처리수는 농업용수로 재활용할 수 있어 효과적인 폐수처리가 제공되는 유기물의 부식화에 의한 폐수의 처리방법에 관한 것이다.The present invention relates to a method for treating wastewater by the decay of organic matters, and more particularly, to the biological oxygen demand (BOD) which is a discharge water quality regulation value while removing the odor from the treatment plant. The present invention relates to a method of treating wastewater by corrosive organic matter, which is treated by lowering as much as possible, increasing the amount of treated water and nitrogen and phosphorus removal efficiency, and the treated water can be recycled into agricultural water to provide effective wastewater treatment.
일반적으로 폐수의 처리방법으로 표준 활성오니법이 개시되고 있다. 활성오니법(活性汚泥法 : activated sludge process)은 오,폐수의 생물학적 산화법으로서, 1913년 영국에서 개발하였고, 16년 미국에서 실용화되어 세계에 보급되었고, 이러한 활성오니법은 오,폐수를 활성오니(호기적 조건에서 폐수를 산화하는 세균집단)와 함께 폭기조(曝氣槽)에서 폭기·교반(攪伴)하여 BOD(생물화학적 산소요구량)를 거의 만족시키도록 하면, 폐수 속의 콜로이드상(狀) 또는 용해한 물질이 침전하거나 활성오니에 흡착되어 깨끗한 물로 정화시키는 방법이다.이러한 과정에서의 상기 활성오니는 정화작용을 한 다음 차례로 처리대상물인 폐수에서 침전에 의하여 분리되며, 필요에 따라 폐기되거나 또는 다시 본처리과정으로 반송되어 재활용 되는 잇점을 갖고 있어 우리나라의 대부분의 폐수처리장에서 적용되고 있다.In general, standard activated sludge methods have been disclosed as wastewater treatment methods. Activated sludge process (activated sludge process) is a biological oxidation method of wastewater and wastewater, which was developed in the UK in 1913, and was commercialized in the United States in 1613. When (a bacterium group that oxidizes wastewater in aerobic conditions) together with aeration tank and agitating in aeration tank to almost satisfy BOD (biochemical oxygen demand), colloidal phase in wastewater Alternatively, the dissolved material is precipitated or adsorbed on activated sludge to purify with clean water. In this process, the activated sludge is purified and then separated by sedimentation from the wastewater to be treated, and then disposed of or discarded again if necessary. It has the advantage of being returned to this process and recycled, so it is applied in most wastewater treatment plants in Korea.
그러나, 이러한 활성 오니법을 적용한 우리나라의 폐수처리장은 구조적인 측면과 처리방법면에서 여러가지 단점이 있다.However, the wastewater treatment plant in Korea to which such an activated sludge method is applied has various disadvantages in terms of structural aspects and treatment methods.
즉, 이러한 활성오니법이 적용된 폐수처리장에는 유기물질이 함유된 폐수(원수)가 유입되는 과정에서 악취가 심하게 발생되는 단점이 있고, 원수 중에 부유된 조대형 부유물질을 인발하는 과정에서 부유물질의 부패가 빠르게 진행되어 심한 악취의 발산 및 주변환경을 오염시키는 단점이 있다.In other words, the wastewater treatment plant to which the activated sludge method is applied has a disadvantage in that bad odor is generated in the process of introducing organic wastewater (raw water), and corruption of suspended solids in the process of drawing coarse suspended solids suspended in raw water. There is a disadvantage that it proceeds quickly and emits a bad odor and pollutes the surrounding environment.
특히, 부유물질을 하나의 처리과정으로 침전시킨 후 방류과정에서 침강성이 불량한 물질이 방류수에 그대로 부유된 상태로 배출됨으로 인하여 수질을 악화시키는 요인으로 지적되고 있고, 최근 도시 인구의 증가에 따른 하수의 방출이 심각하여 처리장의 증설이 불가피하며, 특히 하류에서 부영양화의 원인물질인 질소, 인의 제거 효율이 낮아 이러한 질소, 인의 제거 효율을 높이기 위한 기술이 절실히 요구되고 있는 실정이다.In particular, after sedimentation of suspended solids in one treatment process, poor sedimentation is discharged in the discharged water as it is, and it is pointed out as a deterioration of water quality. Due to the severe discharge, it is inevitable to expand the treatment plant. In particular, since the removal efficiency of nitrogen and phosphorus, which are the causes of eutrophication in the downstream, is low, a technology for improving the removal efficiency of nitrogen and phosphorus is urgently required.
종래의 폐수처리장은 대부분 초침조에서 고액을 분리하여 침강된 생 슬러지는 오니농축조로 보내고 있기 때문에 슬러지 발생량이 많을 수밖에 없고, 발생하는 슬러지를 처리하기 위하여 혐기성 소화조와 같은 방대한 슬러지 감량화 시설이 소요됨과 동시에 슬러지 케익(Cake)의 해양 투기, 소각, 매립 등의 비용이 막대하게 소요된다.Since most of the conventional wastewater treatment plants separate the solids from the super-sedimentation tank and settle the raw sludge into the sludge concentration tank, the amount of sludge is inevitably high. The cost of offshore dumping, incineration and landfilling of sludge cakes is enormous.
또한, 폐수 속에 함유되어 있는 유기물을 먹이로 하는 미생물이 콘크리트 구조물 속에서 자연발생되고, 이들 자연 발생된 미생물군이 하수를 정화하도록 하기 때문에 부식물이 존재하지 않는 환경이 되어서 대기 중에서 발생하는 유기물의 부식화 반응과는 괴리된 활동을 하게 된다.In addition, since microorganisms that feed organic matter contained in wastewater are naturally generated in concrete structures, and these naturally occurring microbial groups are used to purify sewage, corrosion of organic matters generated in the atmosphere is caused by the absence of corrosive materials. It is a different activity from the angry reaction.
다시 말하여, 폐수처리장의 각 처리조는 콘크리트 구조물로 구축되어 있고, 그 곳에는 부식물질이 존재할 수 없어, 유기물만 투입되어 이를 자연 발생 미생물군이 분해를 하게 된다.In other words, each treatment tank of the wastewater treatment plant is constructed of a concrete structure, where no corrosive substances can be present, and only organic matter is added to decompose the naturally occurring microbial group.
그 결과, 부식화반응이 일어나지 않고, 부식화 과정에서 생성되는 미생물 대사산물인 킬레이트 화합물, 토양의 입단구조, 성장촉진물질, 항생물질, 생물활성물질이 생성되지 않게 된다.As a result, the corrosion reaction does not occur, and the chelating compound, which is a microbial metabolite generated during the corrosion process, the grain structure of the soil, the growth promoter, the antibiotic, and the bioactive material are not produced.
따라서, 부식물질이 존재하지 않는 수조 속에서 폐수의 처리효율은 시간적으로 많은 시간이 소요되고, 처리량이 한정되는 단점과 토양 환원이 불가능한 단점이 있었다.Therefore, the treatment efficiency of wastewater in the tank does not exist corrosive material takes a lot of time, there is a disadvantage that the throughput is limited and the soil is impossible to reduce.
또한, 처리수는 염소 소독을 않고는 멸균되지 않으므로 트리할로메탄 등 발암물질을 발생시켜 새로운 문제를 야기 시킨다.In addition, the treated water is not sterilized without chlorine disinfection, causing carcinogens such as trihalomethane, causing new problems.
본 발명은 상기와 같은 종래의 폐수의 처리방법에서 문제시된 단점을 효과적으로 해소하고자 연구 개발된 것으로서,The present invention has been researched and developed in order to effectively solve the disadvantages of the conventional wastewater treatment method as described above,
본 발명의 목적은 방류수질의 규제치보다 최대한 낮은 값으로 처리할 수 있는 유기물의 부식화에 의한 폐수의 처리방법을 제공함에 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a method for treating wastewater by the decay of organic matter which can be treated to a value lower than the regulation value of the discharge water quality.
본 발명의 목적은 폐수의 처리수량을 현재보다 그 이상 처리할 수 있는 유기물의 부식화에 의한 폐수의 처리방법을 제공함에 있다.It is an object of the present invention to provide a method for treating wastewater by the corrosion of organic matter, which can treat more than the present amount of wastewater.
본 발명의 목적은 폐수 속의 질소 및 인의 제거효율을 극대화하고 처리수의 소독이 없이 농업 용수로 재활용할 수 있는 유기물의 부식화에 의한 폐수의 처리방법을 제공함에 있다.An object of the present invention is to maximize the removal efficiency of nitrogen and phosphorus in the waste water and to provide a method for treating wastewater by the corrosion of organic matter that can be recycled to agricultural water without disinfection of the treated water.
도 1은 본 발명의 처리 계통도.1 is a process flow diagram of the present invention.
본 발명의 상기 목적은 유기물질을 함유한 폐수를 부식물이 존재하지 않는 인위적인 환경의 유량조정조, 폭기조, 침전조, 오니저류조로 경유시키면서 부식물로 변성시키고, 이를 다시 반복하여 폐수의 유입지점으로 반송하는 폐수의 처리방법에 의하여 달성된다.이하, 본 발명의 폐수처리 방법에 대하여 도 1의 처리 계통도를 참조하여 상세히 살펴보기로 한다.본 발명의 폐수처리방법에서는 원수(폐수)가 유량조정조에 새로이 유입되면, 상기 원수는 유량조정조내에 설치된 교반기로 교반된다. 또한 상기 유량조정조의 폐수 유입 지점에는 침전조로부터의 오니가 분배조를 통하여 1일 유입농도에 따라 유입량의 10~100%의 양만큼 반송되어 유입되고, 또한 오니저류조로부터의 반송물질도 유입된다.반송오니가 유량조정조에 유입되면, 반송되어 유입되는 오니 속에 함유되어 있던 슈도모나스 멤버(Pseudomonas Member)의 대사산물에서 기인한 점교질 물질과 폐수 속에 함유되어 있는 유기물질이 급속히 응집되어 축합되기 시작한다. 이때, 상기 반송되어 유입되는 오니 속에 함유되어 있던 곰팡이류(Cladosporium, Penicillium, Tricoderma, Stachybotris 기타)의 현미경적 균사가 이들 응집물을 휘감고 부식화되면서 안정적으로 중합축합된다.또한, 상기 반송되어 유입되는 오니 속에 함유된 킬레이트성 유기 물질은 원수 속에 함유되어 있는 이온성 무기물질과 킬레이트 효과에 의해서 착화합물이나 내착화합물을 형성하므로써 이들을 액상에서 제거한다. 동시에 악취의 구성 분자가 물에 녹아 수화되어 이온으로 존재하고 있기 때문에, 악취의 구성분자인 NH4등 (+)이온을 착화합물, 내착화합물의 구성분자로 포집하므로써 악취가 사라지게 된다.또한, 원수 속에 존재하는 BOD, COD의 탄소원을 에너지원으로 하는 탈질균이 반송 오니 속에 함유된 질소산화물(이하 'NOx'라 한다)을 질산 호흡으로 탈질시킨다.유량조정조 단계에서는 상기한 과정을 통하여 유기물질의 60~90%가 제거된다.상기 유량조정조 내로 유입되는 원수의 양이 일정하지 않아서 유량조정조 내의 수위는 항상 변하지만, 유량조정조로부터 폭기조로의 유입은 폭기조 전단에 설치된 계량조에 의하여 항상 일정하게 유지된다.즉, 본 발명의 폐수처리방법에서는, 폐수의 안정적인 처리를 위하여 상기 유량조정조에서 원수를 펌핑(Pumping Up)하여 계량조로 유입시킨 상태에서 일정량을 폭기조로 유입시키고 잉여량은 유량조정조로 되돌려 보내는 과정을 취하므로써, 상기 폭기조로의 원수 유입을 24시간 항상 일정하도록 만든다.The object of the present invention is to denature the wastewater containing organic materials through the flow control tank, aeration tank, sedimentation tank, reservoir tank of the artificial environment in which no corrosive material is present, and to convert the wastewater to the inflow point of the waste water by repeating this. The wastewater treatment method of the present invention will be described in detail with reference to the treatment flow diagram of FIG. 1. In the wastewater treatment method of the present invention, when raw water (wastewater) is newly introduced into the flow regulating tank. The raw water is stirred with a stirrer installed in the flow adjusting tank. In addition, the sludge from the settling tank is returned to the wastewater inflow point of the flow rate adjusting tank by an amount of 10 to 100% of the inflow amount depending on the daily inflow concentration, and also the return material from the sludge storage tank is introduced. When the sludge enters the flow control tank, the viscous material from the metabolite of the Pseudomonas Member contained in the sludge returned and flowed in and the organic matter contained in the waste water rapidly aggregate and begin to condense. At this time, microscopic mycelium of fungi (Cladosporium, Penicillium, Tricoderma, Stachybotris, etc.) contained in the sludge to be conveyed and introduced is stably polymerized and condensed while enveloping and agglomerating these aggregates. The contained chelating organic substances are removed from the liquid phase by forming complex or internal compounds by the chelating effect with the ionic inorganic substances contained in the raw water. At the same time is hydrated the component molecules of malodor soluble in water because they exist as ions, trapping the component molecules of NH 4, such as (+) ions of the odor in constituent molecules of the complex, in a complex By disappear odor. In addition, in the raw water Denitrification bacteria, which use the carbon source of BOD and COD present as energy sources, denitrate nitrogen oxide (hereinafter referred to as 'NOx') contained in the returned sludge by nitric acid breathing. 90% is removed. Since the amount of raw water flowing into the flow regulating tank is not constant, the water level in the flow regulating tank always changes, but the inflow from the flow regulating tank to the aeration tank is always kept constant by the metering tank installed in front of the aeration tank. That is, in the wastewater treatment method of the present invention, the raw water is pumped up in the flow rate adjusting tank for stable treatment of the wastewater. Introducing a predetermined amount in a state in which the inlet to the aeration tank and the excess amount By taking the process of sending back to the flow-adjusting tank, making the raw water inflow to the aeration tank to be kept constant for 24 hours.
상기 폭기조의 전단에서는, 상기 계량조로부터 유입되는 원수와, 분배조로부터 반송되는 오니 및 폭기조 후단에서 전단으로 조내 반송하는 폐수가 동시에 유입되면서 부식화 반응이 일어난다. 이때, 상기 폭기조는 상기 유량조정조에서 제거되고 남은 BOD의 10%∼40%에 대하여 용적부하가 0.6Kg/m3BOD가 되도록 설계한다.At the front end of the aeration tank, the corrosive reaction takes place while the raw water flowing from the metering tank, the sludge conveyed from the distribution tank, and the waste water conveyed in the tank at the rear end of the aeration tank are introduced simultaneously. At this time, the aeration tank is designed to have a volume load of 0.6 Kg / m 3 BOD for 10% to 40% of the remaining BOD removed from the flow adjusting tank.
상기 폭기조는 종전의 폐수를 처리하는 공법에 비하여 MLSS(미생물혼합액)농도가 5,000ppm 이상인 상태에서 운전하기 때문에 오니 일령이 길게 되므로, 증식 속도가 느린 질산화균의 증식 밀도가 높아질 뿐만 아니라 반송 오니 속에 서식하고 있는 질산화균이 유량조정조, 폭기조로 공급되므로, 질산 화균의 서식 밀도가 폭기조에서 자연 발생적으로 증식하는 것보다 높아지게 된다.Since the aeration tank operates in a state where the MLSS concentration is 5,000 ppm or more, compared to the conventional method of treating wastewater, the sludge age is long, so that the growth rate of the nitrifying bacteria with slow growth rate is not only high but also in the returned sludge. Since the nitrifying bacteria are supplied to the flow control tank and the aeration tank, the incubation density of the nitrifiers is higher than that of the naturally occurring growth in the aeration tank.
또한, 반송되어 유입되는 오니속에 함유된 생장 촉진 물질, 생물 활성 물질의 영향으로 미생물들의 활성이 높아지기 때문에 질산화균의 증식 속도도 빨라져서 암모니아성 질소가 상기 질산화균에 의해서 질산성 질소로의 산화가 촉진된다.In addition, since the activity of microorganisms increases under the influence of growth-promoting substances and biologically active substances contained in the sludge returned and introduced, the growth rate of nitrifying bacteria is also increased, so that oxidation of ammonia nitrogen to nitric acid is promoted by the nitrifying bacteria. do.
상기 폭기조는 후단에서 전단으로 반송장치(펌프)를 사용하여 원수 유입량의 200∼800%를 조내에서 반송시키므로써 조 중앙을 항상 교반상태로 유지하여, 계량조로부터 상기 폭기조에 유입되는 원수와 혼합, 교반을 활발하게 만들어서 탈질을 촉진시킨다.The aeration tank uses a conveying device (pump) from the rear end to the front end to convey 200-800% of the raw water inflow in the tank, thereby maintaining the center of the tank at a constant stirring state, and mixing with raw water flowing into the aeration tank from the metering tank. Agitation is facilitated to promote denitrification.
이때, 탈질의 증폭을 위하여 상기 폭기조의 후단에서의 폭기를 중단한 상태에서 폭기조 후단의 오니를 폭기조 전단으로 반송시키는 것이 바람직하다. 즉, 상기 폭기조에서 질산화 비율은 98%가 넘기 때문에, 유량 조정조에 처음으로 유입되는 원수속에 존재하는 BOD, COD를 탄소원으로 하여 호기성 미생물과 통성혐기성 미생물이, 폭기조 유입 지점으로 상기 분배조에서 반송되는 오니, 및 폭기조 후단에서 전단으로 반송되는 오니 속에 함유된 NOx의 분자내 산소를 호흡함으로써 탈질이 진전되고, 동시에 BOD, COD도 낮아진다.At this time, in order to amplify the denitrification, it is preferable to convey the sludge of the rear end of the aeration tank to the front of the aeration tank while the aeration at the rear end of the aeration tank is stopped. That is, since the nitrification rate in the aeration tank is more than 98%, aerobic microorganisms and breathable anaerobic microorganisms are returned from the distribution tank to the aeration tank inlet point using BOD and COD present in the raw water flow introduced into the flow control tank as the carbon source. Denitrification progresses by breathing intramolecular oxygen of NOx contained in sludge and sludge returned to the front end of the aeration tank, and at the same time, BOD and COD are lowered.
이러한 과정에서 느슨하게 응집 축합된 오니상 물질은 물리적인 힘에 의하여 쉽게 파괴되기 때문에, 폭기시 거대기포 산기관을 사용할 경우 오니를 파괴하여 오니 속에 포집되어 있는 유기 물질이 오니로부터 탈리하는 현상이 일어날 수 있다. 이를 방지하기 위하여 폭기 강도를 최소한으로 낮추면서 산소 전달 효율이 높은 미세기포 산기관을 장착하여야 한다. 그러면서도 교반이 충분히 되도록 DO를 0.7ppm이하, ORP는 100mv 이상에서 운전하도록 한다.In this process, loosely coagulated condensed sludge material is easily destroyed by physical force. Therefore, if a large bubble diffuser is used during aeration, the sludge may be destroyed and organic matter trapped in the sludge may detach from the sludge. have. To prevent this, microbubble diffusers with high oxygen transfer efficiency while lowering aeration intensity should be installed. The DO should be operated at 0.7ppm or less and ORP at 100mv or more to ensure sufficient agitation.
이러한 과정에 의하여 상기 유량조정조로부터 유입된 BOD의 98%이상이 제거된다.By this process, more than 98% of the BOD introduced from the flow adjusting tank is removed.
본 발명의 폐수처리방법에 있어서, 폭기조로부터의 처리물은 침전조로 유입되는데, 이때 침전조는 바로 전단계인 폭기조가 고MLSS상태에서 운전되기 때문에, 오니가 케리오버(Carry Over)되지 않는 정도의 용량이 바람직하다. 예를들면 BOD가 300ppm 이하인 원수의 경우 4시간 이상, BOD가 3,000ppm이하인 원수의 경우 8시간이상, BOD가 15000ppm 이상인 원수의 경우 24시간으로 한다.In the wastewater treatment method of the present invention, the treated material from the aeration tank flows into the sedimentation tank. At this time, the sedimentation tank has a capacity such that the sludge does not carry over because the aeration tank is operated in a high MLSS state. desirable. For example, 4 hours or more for raw water with a BOD of 300 ppm or less, 8 hours or more for raw water with a BOD of 3,000 ppm or less, and 24 hours for raw water with a BOD of 15000 ppm or more.
상기 침전조에서는 고액 분리조의 기능뿐 아니라 분배조로 오니를 연속적으로 이송하고 있어서, 중앙 용기(Center Well)는 항상 교반상태를 유지하고 있고, DO도 낮기 때문에, 탈질조의 기능을 아울러 하고 있다. 또한 상기 침전조는 T-N이 제거되면서 BOD, COD도 낮아지는 반응조의 기능도 하고 있다. 분배조로의 오니의 이송은 물질적인 힘이 강하게 작용하는 펌프는 피하고 가능한한 물리적인 힘이 약하게 작용하는 에어리프트(Air Lift)를 장착하여 분배조에 유입시킨다. 분배조로부터 유량 조정조와 오니 저류조로 일정량의 오니를 분배하여 항상 일정하게 유입시키며 브이노치(V-knoch)로 분배량을 조절하고, 남는 양은 폭기조로 드레인(Drain)한다.In the settling tank, the sludge is continuously transferred to the distribution tank as well as the function of the solid-liquid separation tank, so that the center well is always kept in the stirring state, and the DO is also low, thus serving as a denitrification tank. In addition, the settling tank also serves as a reaction tank to lower the BOD, COD as T-N is removed. The transfer of sludge to the dispensing tank is avoided by pumps with strong physical force, and is introduced into the dispensing tank with an air lift that has a weak physical force as much as possible. A certain amount of sludge is distributed from the distribution tank to the flow control tank and the sludge storage tank, and the flow rate is constantly introduced. The distribution amount is adjusted to V-knoch, and the remaining amount is drained to the aeration tank.
유량 조정조, 계량조, 폭기조, 침전조, 분배조 및 오니저류조를 경과하는 과정에서 폐수 속의 유기 물질은 CO2, N2등으로 기화하고, 남은 유기 물질은 부식물로 변하게 되는데, 이러한 침전 오니속에 함유된 부식물을 원수의 유입 지점인 유량 조정조 전단으로 반송하여 유기물과 혼합 교반하므로써, 유기물의 부식화가 달성된다.In the course of the flow control tank, the metering tank, the aeration tank, the settling tank, the distribution tank and the reservoir tank, the organic substances in the waste water are vaporized with CO 2 , N 2, etc., and the remaining organic substances are converted into corrosive substances. Corrosion of the organics is achieved by returning the corrosives to the front end of the flow adjustment tank, which is the inflow point of the raw water, and mixing and stirring the organics.
본 발명의 폐수처리방법에 있어서, 분배조로부터 오니가 유입되는 오니저류조에는 부식토와 활성규산염을 촉매제로 충진시킨 유도 배양기를 장착하므로써, 오니 인발을 하기 위한 저류조의 기능 뿐만 아니라, 오니배양조의 기능도 갖는다.In the wastewater treatment method of the present invention, the sludge storage tank into which the sludge flows from the distribution tank is equipped with an induction incubator filled with the caustic soil and the active silicate as a catalyst, so that not only the function of the storage tank for sludge drawing but also the function of the sludge culture tank Have
이때, 상기 유도배양기는 부식토와 활성규산염을 1:2의 비율로 장착해두고 1년에 부식토와, 활성규산염의 50%를 보충하도록 설계하는 것이 바람직하다.In this case, it is preferable that the induction incubator is equipped with humic earth and active silicate at a ratio of 1: 2, and is designed to replenish 50% of humic earth and active silicate in one year.
오니저류조에서 배양된 오니의 일정량을 탈수처리하고, 나머지 일정량은 유량조정조의 원수유입지점으로 반송시킨다.A certain amount of sludge cultured in the sludge storage tank is dewatered, and the remaining amount is returned to the raw water inflow point of the flow adjusting tank.
본 발명의 방법에 의하면 유기물 폐수 처리장에서 악취가 없어지고, 염소 소독을 하지 않으므로 트리할로메탄 등 발암물질의 생성이 없어 방류에 따른 동식물의 건강에 영향이 없게 되며, 슬러지 발생량이 줄어들게 되어 처리비가 절감되고, 슬러지는 간단히 가공 발효시켜 토양 개량제로 토양환원이 가능하고, 처리수는 항균성이 뛰어나서 하류의 정화작용이 제공된다.According to the method of the present invention, there is no odor in the organic wastewater treatment plant and no chlorine disinfection, so there is no generation of carcinogens, such as trihalmethane, which does not affect the health of the animals and plants according to the discharge, and the amount of sludge is reduced, thereby reducing the treatment cost. Reduced, sludge is simply processed and fermented, so that the soil can be reduced as a soil improver, the treated water is excellent antimicrobial and provide a downstream purification.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100983829B1 (en) * | 2008-07-04 | 2010-09-28 | 이박 | Wastewater Treatment by Corrosion of Organics Using Methane Fermentation Tank |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020031916A (en) * | 2000-10-24 | 2002-05-03 | 김일선 | Process for Treating an Organic Wastewater by Earth Microorganism and Its Plant |
| KR100393921B1 (en) * | 2001-01-26 | 2003-08-06 | 이성일 | Process for Sewage treatment by humix reaction |
| KR100424158B1 (en) * | 2001-08-22 | 2004-03-30 | 서희동 | Method of cultivation for humification bacteria by using activated humic substances |
| KR100465069B1 (en) * | 2001-11-22 | 2005-01-13 | (주)범한엔지니어링 종합건축사 사무소 | Gravity Sludge Thickning Method and Equipment. |
| KR100454508B1 (en) * | 2002-07-05 | 2004-11-03 | 허명준 | Natural water having deodorization ability and sterilization effect against resistent bacteria, and produce method thereof |
| KR101412601B1 (en) * | 2007-02-15 | 2014-07-03 | 이민자 | Organic waste treatment method using liquid corrosion material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531490A (en) * | 1991-08-02 | 1993-02-09 | Ebara Jitsugyo Kk | Biological treatment of organic sewage |
| KR950008382A (en) * | 1993-09-17 | 1995-04-17 | 오병철 | Method and apparatus for high concentration organic wastewater treatment using soil microbial group |
| JPH10296288A (en) * | 1997-04-22 | 1998-11-10 | Toyo Bio Reactor Kk | Sludge reforming method in batch type and oxidation ditch type waste water treatment method |
| KR19980082123A (en) * | 1998-08-27 | 1998-11-25 | 임동혁 | Batch Natural Purification Method of Organic Sewage and Wastewater and Its Apparatus |
| KR0170038B1 (en) * | 1995-07-20 | 1999-02-01 | 아키라 후지마쯔 | Wastewater treatment method |
| KR19990068819A (en) * | 1999-06-25 | 1999-09-06 | 임동혁 | Deodorize and nutrients removal from wastewater by soil microorganisms |
-
2000
- 2000-08-29 KR KR1020000050570A patent/KR20000072333A/en unknown
-
2001
- 2001-01-30 KR KR10-2001-0004413A patent/KR100403864B1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531490A (en) * | 1991-08-02 | 1993-02-09 | Ebara Jitsugyo Kk | Biological treatment of organic sewage |
| KR950008382A (en) * | 1993-09-17 | 1995-04-17 | 오병철 | Method and apparatus for high concentration organic wastewater treatment using soil microbial group |
| KR0170038B1 (en) * | 1995-07-20 | 1999-02-01 | 아키라 후지마쯔 | Wastewater treatment method |
| JPH10296288A (en) * | 1997-04-22 | 1998-11-10 | Toyo Bio Reactor Kk | Sludge reforming method in batch type and oxidation ditch type waste water treatment method |
| KR19980082123A (en) * | 1998-08-27 | 1998-11-25 | 임동혁 | Batch Natural Purification Method of Organic Sewage and Wastewater and Its Apparatus |
| KR19990068819A (en) * | 1999-06-25 | 1999-09-06 | 임동혁 | Deodorize and nutrients removal from wastewater by soil microorganisms |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100983829B1 (en) * | 2008-07-04 | 2010-09-28 | 이박 | Wastewater Treatment by Corrosion of Organics Using Methane Fermentation Tank |
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| KR20020018925A (en) | 2002-03-09 |
| KR20000072333A (en) | 2000-12-05 |
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