KR101250348B1 - A method for making liquid fertilizer from the livestock excretions using a venturi tube - Google Patents

A method for making liquid fertilizer from the livestock excretions using a venturi tube Download PDF

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KR101250348B1
KR101250348B1 KR1020120070691A KR20120070691A KR101250348B1 KR 101250348 B1 KR101250348 B1 KR 101250348B1 KR 1020120070691 A KR1020120070691 A KR 1020120070691A KR 20120070691 A KR20120070691 A KR 20120070691A KR 101250348 B1 KR101250348 B1 KR 101250348B1
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wastewater
venturi tube
storage tank
waste water
flow path
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Korean (ko)
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윤만중
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주식회사 신영이앤아이
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06—Apparatus for the manufacture
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/30—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using irradiation, e.g. solar or nuclear radiation; using electric or magnetic fields
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/60—Heating or cooling during the treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/964—Constructional parts, e.g. floors, covers or doors
    • C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
    • C05F17/986—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being liquid
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Sustainable Development (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Sludge (AREA)
  • Physical Water Treatments (AREA)

Abstract

PURPOSE: A livestock excretion method is provided to use a venturi pipe structure which has an improved structure capable of generating a cavitation phenomenon by using a venturi pipe structure. CONSTITUTION: A livestock excretion method using a venturi tube structure comprises a step of separating solid and liquid of livestock excretion and inserting the waste water into a storage tank(100); a step of transferring the waste water into a pipe shaped flow path(200) which is connected to the lower part of the storage tank; and a step of increasing the temperature of the waste water and transferring the waste water into the storage tank. The venturi pipe has an inner circumference in the inlet side of a screw groove part.

Description

벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법{A METHOD FOR MAKING LIQUID FERTILIZER FROM THE LIVESTOCK EXCRETIONS USING A VENTURI TUBE}A METHOD FOR MAKING LIQUID FERTILIZER FROM THE LIVESTOCK EXCRETIONS USING A VENTURI TUBE}

본 발명은 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법에 관한 것으로, 특히 유체 통과시 공동화 현상을 발생시킬 수 있는 벤츄리관 구조체를 이용하여 축산 분뇨 등의 폐수의 순환과정에서 폐수를 소립화시키고 온도를 상승시켜 폐수의 액비화 시간을 대폭 단축시킬 수 있도록 개선된 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법에 관한 것이다.The present invention relates to a method for liquefaction of livestock manure using a venturi tube structure, in particular, by using the venturi tube structure that can cause cavitation phenomenon when the fluid passes through the waste water in the circulation process of waste water such as livestock manure, and temperature The present invention relates to a method for liquefying livestock manure using an improved venturi tube structure to increase the wastewater liquefaction time significantly.

종래에는 가축분뇨 등의 고농도 유기성 폐수를 호기성 미생물을 이용하여 생물학적 방법으로 처리할 경우에는 생물반응조(호기조)및 무산소조 등을 설치하여서 고농도 폐수를 처리하는 것이 일반적이다.Conventionally, when a high concentration organic wastewater such as livestock manure is treated by aerobic microorganisms in a biological method, it is common to treat a high concentration wastewater by installing a bioreactor (aerobic tank) and an anaerobic tank.

폐수 속에 들어 있는 질소 성분은 주로 암모니아, 질산(nitrate), 아질산(nitrite) 형태를 취하고 있다. 이러한 질소 화합물은 수생생물에 미치는 독성 뿐만 아니라 해수로 유입되었을 때에 용존 산소 소모를 가져올 수 있는 부영양화(eutrophication)를 촉진시켜 어폐류 폐사의 직접적인 원인이 되는 것으로 알려져있다.The nitrogen in the wastewater is usually in the form of ammonia, nitrate and nitrite. These nitrogen compounds are known to be a direct cause of fish mortality by promoting eutrophication, which can lead to dissolved oxygen consumption as well as toxicity to aquatic organisms.

일반적으로 입자상 유기성 물질이 다량 함유되어 있는 폐수, 예를 들어 축산폐수나 하수처리장의 슬러지 등은 호기 또는 혐기적 생물학적 방법으로 처리 또는 안정화 시킬 때, 분해가 힘든 입자상 유기성 물질이나 거대 유기성 분자의 가수분해가 율속단계로 작용하기 때문에 반응속도가 느리게 되고 장시간의 체류시간이 필요하게 됨으로써 생물학적 반응조의 용적이 커져야 하는 단점을 가지고 있다. Generally, wastewater containing a large amount of particulate organic matter, such as livestock wastewater or sludge from sewage treatment plants, is difficult to decompose when hydrolyzed particulate organic matter or macroorganic molecules when treated or stabilized by aerobic or anaerobic biological methods. Because the reaction rate acts as a rate-limiting step, the reaction rate is slow and a long residence time is required, thereby increasing the volume of the biological reactor.

이를 극복하기 위하여 다양한 전처리 방법이 연구되어 왔다. 전처리 방법으로는 볼밀 등의 기계적 처리나 고온의 열을 이용하는 물리적 방법, 알칼리나 오존 등을 이용하는 화학적 방법, 효소 등을 이용하는 생물학적 방법 또는 둘 이상의 방법을 동시에 적용한 혼합처리 방법 등이 제시되었다.In order to overcome this, various pretreatment methods have been studied. As a pretreatment method, a mechanical treatment of a ball mill or the like, a physical method using high temperature heat, a chemical method using an alkali or ozone, a biological method using an enzyme, or the like, or a mixed treatment method using two or more methods at the same time have been proposed.

그리고, 기존 생물학적 방식은 질소 제거를 위한 호기성조/무산소조 등의 장치 등을 필요로 함에 따라 구조가 복잡할 뿐만 아니라, 이를 위한 초기 투자비용이 많이 요구되는 단점이 있다.In addition, the existing biological method requires a device such as an aerobic tank / anoxic tank for nitrogen removal, the complex structure, there is a disadvantage that requires a lot of initial investment for this.

이를 극복하기 위하여 다양한 전처리 방법이 연구되어 왔다. 전처리 방법으로는 볼밀 등의 기계적 처리나 고온의 열을 이용하는 물리적 방법, 알칼리나 오존 등을 이용하는 화학적 방법, 효소 등을 이용하는 생물학적 방법 또는 둘 이상의 방법을 동시에 적용한 혼합처리 방법 등이 제시되었다.In order to overcome this, various pretreatment methods have been studied. As a pretreatment method, a mechanical treatment of a ball mill or the like, a physical method using high temperature heat, a chemical method using an alkali or ozone, a biological method using an enzyme, or the like, or a mixed treatment method using two or more methods at the same time have been proposed.

기존 벤츄리관을 이용한 액비화장치 및 액비화 방법에서는 폐수 내 함유된 입자상 유기물질을 생물학적으로 처리하기 위한 체류시간이 오래 걸리게 될 뿐만 아니라, 처리과정에서 악취가 발생하게 된다.In the liquid liquefaction apparatus and liquid liquefaction method using the existing venturi tube, the residence time for biological treatment of the particulate organic material contained in the wastewater takes a long time, and odor is generated during the treatment.

본 발명은 상기한 제반 문제점을 감안하여 이를 해결하고자 창안된 것으로, 그 목적은 폐수를 벤츄리관을 이용한 밀폐 순환방식으로 단시간내에 액비화할 수 있도록 그 구조가 개선된 벤츄리관 구조체를 이용한 폐수의 액비화방법을 제공하는 데 있다.The present invention was devised to solve this problem in view of the above-mentioned problems, and its object is to liquefy wastewater using a venturi tube structure whose structure is improved so that the wastewater can be liquefied in a closed cycle using a venturi tube in a short time. To provide.

상기한 목적을 달성하기 위한 본 발명은 축산 분뇨 등의 폐수를 고액 분리시키고, 고액 분리된 폐수를 저장탱크의 내부로 유입시키는 단계와,The present invention for achieving the above object is the solid-liquid separation of wastewater, such as livestock manure, and the solid-liquid separated wastewater flowing into the storage tank,

상기 저장탱크의 내부에 유입된 폐수를 상기 저장탱크의 하부에 연결된 배관 형태의 유로 내부로 통과시킨 후에 다시 저장탱크의 내부로 순환되도록 압송시키는 단계를 구비하되,And passing the wastewater introduced into the storage tank into a pipe-shaped flow path connected to the lower portion of the storage tank and then circulating the wastewater back into the storage tank.

상기 유로 내에 배치되어 상기 압송되는 폐수를 와류 형태로 변환시키도록 나선형 홈부가 중공의 유입구측 내주면에 형성된 벤츄리관을 통과시켜 폐수 입자를 소분화시킴과 아울러, 상기 폐수의 온도를 상승시킨 후에 다시 저장탱크로 압송하는 것을 특징으로 한다.The spiral groove portion disposed in the flow path passes through a venturi tube formed on the inner circumferential surface of the hollow inlet side so as to convert the pumped wastewater into a vortex, thereby minimizing the wastewater particles, and storing the wastewater again after raising the temperature of the wastewater. It is characterized in that the pumping to the tank.

상기 유로 내에 자석부재를 배치하여 상기 유로 내부를 통과하는 폐수를 자기력으로 자화시키는 단계를 더 구비한다.The method further includes magnetizing the wastewater passing through the flow path by magnetic force by disposing the magnet member in the flow path.

상기 폐수의 온도를 상승시키는 단계는, 열교환기를 매개로 온도가 상승된 폐수를 40~60℃ 범위의 온도로 유지시키는 단계를 더 구비한다.The step of raising the temperature of the waste water, further comprising the step of maintaining the temperature of the waste water temperature is raised 40 ~ 60 ℃ range through a heat exchanger.

상기 벤츄리관의 나선형 홈부를 상기 유입구측에서 상기 중공의 중앙측으로 갈수록 폭이 확대되도록 형성시켜 난류와 소용돌이 현상을 증폭시키는 단계를 더 구비한다.And forming a spiral groove of the venturi tube from the inlet side toward the center of the hollow to amplify the turbulence and the vortex.

첫째, 유체의 공동화 현상을 발생시킬 수 있도록 구조가 개선된 벤츄리관 구조체를 이용하여 폐수 입자를 소분화시키고 온도를 상승시켜 폐수를 밀폐 순환방식으로 단시간내에 액비화시킬 수 있는 유용한 효과를 갖는다.First, the venturi tube structure having an improved structure to generate the cavitation phenomenon of the fluid has a useful effect of subdividing the wastewater particles and raising the temperature to liquefy the wastewater in a closed cycle in a short time.

둘째, 폐수를 순환시키는 구조를 밀폐 순환형 구조로 개선함으로써, 별도의 환기구 설비나 온도 유지설비를 구비하지 않고도 축산 분뇨등의 폐수를 액비화하는 과정에서 악취 차단 및 발효 시간을 대폭 단축시킬 수 있는 효과를 갖는다.Second, by improving the structure that circulates the wastewater into a closed circulation structure, it is possible to drastically reduce the odor blocking and fermentation time in the process of liquefying wastewater, such as livestock manure, without having to provide a separate ventilating facility or temperature maintenance equipment Has

셋째, 폐수의 순환과정에서 폐수를 자화시킴으로써, 폐수 내의 미생물의 활동을 활발하게 하여 액비화에 필요한 발효시간을 대폭 단축시킬 수 있다.Third, by magnetizing the wastewater in the circulation of the wastewater, it is possible to significantly shorten the fermentation time required for liquid fertilization by activating the activity of microorganisms in the wastewater.

넷째, 벤츄리관의 유입구 측에 나선형 홈부를 형성하되, 그 나선형 홈부의 폭을 유입구측에서 중공의 중앙측으로 갈수록 확대되도록 형성시킴으로써, 유입구를 통해 통과되는 유체의 와류 발생시 난류와 소용돌이 현상을 증폭시켜 입자 소분화 효율을 향상시킬 수 있는 이점을 갖는다.Fourth, by forming a spiral groove portion on the inlet side of the venturi tube, the width of the spiral groove portion is formed to extend from the inlet side toward the hollow center side, thereby amplifying turbulence and vortex phenomenon when the vortex of the fluid passing through the inlet is generated. It has the advantage of improving the subdivision efficiency.

도 1은 본 발명 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법이 적용되는 폐수 처리장치의 구성을 개략적으로 나타낸 구성도.
도 2는 본 발명에 따른 벤츄리관 구조체를 나타낸 구성도.
도 3는 본 발명 벤츄리관 구조체의 측면도.
도 4는 본 발명의 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법을 순차적으로 나타낸 플로우 챠트.
도 5는 본 발명 폐수의 시간 경과별 온도 변화를 나타낸 그래프.
도 6은 본 발명 시간 경과별 가축 분뇨의 색상변화를 나타낸 사진. Figure 1 is a schematic diagram showing the configuration of a wastewater treatment apparatus to which the liquid liquefaction method of livestock manure using the venturi tube structure of the present invention.
Figure 2 is a block diagram showing a venturi tube structure according to the present invention.
Figure 3 is a side view of the present invention venturi tube structure.
Figure 4 is a flow chart sequentially showing a method of liquefaction of livestock manure using the venturi tube structure of the present invention.
5 is a graph showing the temperature change over time of the present invention wastewater.
Figure 6 is a photograph showing the color change of the livestock manure over time of the present invention.

본 발명은 폐수가 통과되는 유로 내부에 입자를 소분화시킬 수 있는 벤츄리관 구조체를 제공하고, 그 벤츄리관 구조체를 통과하는 폐수가 공동화 현상에 의해 원자화, 분쇄화, 균질화 및 소분화된 상태로 밀폐된 저장탱크로 재순환시키면서 가축 분뇨 등의 폐수를 밀폐식 순환 방식을 이용하여 액비화시킬 수 있도록 한 것이다.The present invention provides a venturi tube structure capable of subdividing particles inside a flow passage through which wastewater passes, and the wastewater passing through the venturi tube structure is sealed in an atomized, pulverized, homogenized, and micronized state by a cavitation phenomenon. The wastewater, such as livestock manure, can be liquefied using a closed circulation system while being recycled to the used storage tank.

본 발명에 따른 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법은 도 1 내지 도 4에 도시된 바와 같이, 축산 분뇨 등의 폐수를 통상의 저류조에서 고액 분리시킨 후에 고액 분리된 폐수를 저장탱크(100)의 내부로 유입시키고(S1), 상기 저장탱크(100)의 내부에 유입된 폐수를 상기 저장탱크(100)의 하부에 연결된 배관 형태의 유로(200) 내부로 압송하고(S2), 유로(200) 내부로 압송된 폐수를 와류 형태로 변환시키도록 나선형 홈부(550)가 중공(512)의 입구측 내주면에 형성된 벤츄리관(500)을 통과시켜 폐수 입자를 소분화시킨 후에(S3), 소분화된 폐수를 다시 저장탱크(100)의 내부로 유입시켜서 저장탱크(100)내의 폐수를 순환시키는 단계(S4)들로 구성된다.In the liquid liquefaction method of livestock manure using the venturi tube structure according to the present invention, as shown in Figures 1 to 4, after the solid-liquid separation of wastewater, such as livestock manure in a conventional storage tank storage tank (100) Into the inside of the (S1), the wastewater introduced into the storage tank 100 is pumped into the pipe-shaped flow path 200 connected to the lower portion of the storage tank 100 (S2), the flow path 200 After the helical groove 550 passes through the venturi tube 500 formed on the inner circumferential surface of the hollow 512 in order to convert the waste water pumped into the vortex form (S3), It is composed of the step (S4) to circulate the wastewater in the storage tank 100 by flowing the wastewater back into the storage tank 100.

더 상세히 설명하면, 유로(200)의 일단부가 저장탱크(100)의 하부에 연결되고 타단부가 저장탱크(100)의 상부로 연결되므로, 저장탱크(100)와 유로(200)가 밀폐형 순환구조를 가지게 된다.More specifically, since one end of the flow path 200 is connected to the lower portion of the storage tank 100 and the other end is connected to the upper portion of the storage tank 100, the storage tank 100 and the flow path 200 are hermetically circulated. Will have

폐수는 저장탱크(100)의 하부와 유로(200) 사이에 배관 연결된 펌프(300)를 이용하여 압송할 수 있다.Waste water may be pumped using a pump 300 connected between the lower portion of the storage tank 100 and the flow path 200.

벤츄리관(500)은 양측 단부에 유입구(520)와 유출구(530)를 갖는 중공(512)이 형성된 벤츄리관 몸체(510)를 가지며, 벤츄리관 몸체(510)의 유입구(520)측 중공(512)의 내주면에 상기 유입구(520)를 통해 유입되는 유체를 와류로 변환시키기 위한 나선형 홈부(550)가 형성된 것을 채용한다.The venturi tube 500 has a venturi tube body 510 having a hollow 512 having an inlet 520 and an outlet 530 at both ends thereof, and an inlet 520 side hollow 512 of the venturi tube body 510. On the inner circumferential surface of)) is formed a spiral groove portion 550 for converting the fluid flowing through the inlet 520 into the vortex.

상세히 설명하면, 벤츄리관 몸체(510)의 중공(512)은 중간 부위 내주면에 내경이 축소되도록 양측으로 경사면이 형성된 노즐부(540)를 갖는다.In detail, the hollow 512 of the venturi tube body 510 has a nozzle portion 540 having inclined surfaces on both sides thereof so that an inner diameter thereof is reduced on the inner peripheral surface of the intermediate portion.

나선형 홈부(550)는 노즐부(540)의 유입구(520)측 경사면에 요홈 형태로 복수개 형성되어 있다. The helical groove portion 550 is formed in a plurality of grooves on the inclined surface of the inlet 520 side of the nozzle portion 540.

또한, 나선형 홈부(550)는 일측단이 형성된 유입구(520)측에서 타측단이 형성된 노즐부(540) 측으로 갈수록 내경이 좁아지는 중공(512)의 구조적 특성상 타측단에 해당하는 나선형 홈부(550)가 노즐부(540)측에 집중되는 형태를 갖는다. In addition, the spiral groove 550 is a spiral groove 550 corresponding to the other end due to the structural characteristics of the hollow 512 whose inner diameter is narrowed toward the nozzle part 540 with the other end from the inlet 520 side having one side end. Is concentrated on the nozzle unit 540 side.

더 바람직하게는, 나선형 홈부(550)는 도 3에 도시된 바와 같이, 유입구(520)의 일측단폭(ℓ1)보다 타측단(상기 중공(512)의 중앙)측의 폭(ℓ2)이 더 크게 형성된 것(ℓ1〈ℓ2)으로, 유입구(520)측에서 노즐부(540)측으로 갈수록 폭이 확대되도록 형성된 것이다. 이는 유입구(520)를 통해 통과되는 유체의 와류 발생시 난류와 소용돌이 현상을 증폭시키기 위함이다.More preferably, as shown in FIG. 3, the helical groove 550 has a larger width ℓ 2 on the other end (center of the hollow 512) than one width ℓ 1 of the inlet 520. It is formed (l1 < l2), it is formed so that the width is expanded toward the nozzle portion 540 side from the inlet 520 side. This is to amplify the turbulence and vortex when the vortex of the fluid passing through the inlet 520 occurs.

벤츄리관 몸체(510)는 외측에 유출구(530)측의 중공(512)과 연통되며 내주면에 나사산이 형성되어 음압 게이지와 연결 가능한 연결구(515)가 형성되어 있다.Venturi tube body 510 is in communication with the hollow 512 on the outlet 530 side on the outside and the thread is formed on the inner circumferential surface is formed with a connector 515 connectable to the negative pressure gauge.

상기 유로(200) 내에 자석부재(400)를 배치하여 상기 유로(200) 내부를 통과하는 폐수를 자기력으로 자화시키는 단계를 더 구비할 수 있다.The magnet member 400 may be disposed in the flow path 200 to magnetize wastewater passing through the flow path 200 by magnetic force.

이는, 유로(200) 내부를 통과하는 폐수를 자기력으로 자화(磁化)시켜 성질을 변환시키기 위함이다.This is to convert the properties by magnetizing the wastewater passing through the flow path 200 with magnetic force.

상기 입자를 소분화시키는 단계는, 상기 유로(200) 내에 벤츄리관(500)을 배치함으로써, 상기 폐수를 벤츄리관(500)의 내부로 통과시켜 공동화(cavitaion)현상으로 입자를 소분화시킬 수 있다.In the step of subdividing the particles, by placing the venturi tube 500 in the flow path 200, the waste water can be passed through the interior of the venturi tube 500 to subdivid the particles in the cavitation (cavitaion) phenomenon.

이로 인해, 벤츄리관(500)의 목 부근에서 액체의 속도가 증가되고, 목 부위의 압력이 포화증기압 이하로 감소됨과 아울러, 액체가 증발되면서 기포 핵이 생성되고, 핵이 합쳐져 버블로 성장하게 된다.As a result, the velocity of the liquid is increased in the vicinity of the neck of the venturi tube 500, the pressure of the neck is reduced below the saturated steam pressure, and the bubble evaporates as the liquid evaporates, and the nuclei are combined to grow into bubbles. .

버블화된 폐수는 다시 저장탱크(100)의 상부를 통해 저장탱크(100) 내부로 유입된다.The bubbled wastewater is introduced into the storage tank 100 again through the upper portion of the storage tank 100.

이때, 유로(200) 내에 압송된 폐수는 벤츄리관(500)을 통과하면서 베르누이정리에 의한 공동화 현상이 발생되고, 이로 인해 노즐부(540)의 중앙 부위를 통과하면서 유출구(530) 측으로 유입되면서 미세공간이 생성되어 파쇄된다. 이 미세공간이 파쇄될 경우 난류와 소용돌이 현상에 의해 강한 충격파가 발생하게 된다.At this time, the waste water pumped in the flow path 200 passes through the venturi tube 500, and a cavitation phenomenon occurs due to Bernoulli's theorem. As a result, the waste water is introduced into the outlet 530 while passing through the central portion of the nozzle unit 540. Space is created and broken up. When this microcavity is crushed, strong shock waves are generated by turbulence and vortex phenomena.

이 충격파는 큰 에너지를 생성하게 되며, 이러한 에너지가 원자화(atomization), 세포분쇄(cell disruption). 균질화(homogenization), 분산(dispersion), 가스제거(degassing), 오염원산화 및 환원작용, 세균(대장균, 살모넬라균 등)제거 등에 사용된다.This shock wave generates a large amount of energy, which is the atomization, cell disruption. Used for homogenization, dispersion, degassing, pollutant oxidation and reduction, and removal of bacteria (E. coli, Salmonella, etc.).

또한, 충격파의 에너지는 폐수의 온도를 상승시켜 발효에 필요한 미생물의 활동성을 증가시킬 수 있다.In addition, the energy of the shock wave may increase the temperature of the waste water to increase the activity of the microorganisms required for fermentation.

이러한 폐수의 온도 상승은 도 5에 도시된 바와 같이, 각각의 실험시 온도 변화에 따라, 시간이 경과됨에 따라 외부 온도에 비해 저장탱크(100)의 내부 온도가 상승하게 됨을 알 수 있다.(단위는 ℃)As shown in FIG. 5, the temperature of the wastewater increases as the temperature changes in each experiment, and as time passes, the internal temperature of the storage tank 100 may be increased compared to the external temperature. ℃)

이러한 온도 상승은 시간이 경과함에 따라 점차 상승하게 되지만, 60℃를 초과하게 되면 수증기로 인한 포화증기압이 과도하게 상승되고 진공압이 저감하게 되므로, 공지의 열교환기(미도시됨)를 이용하여 온도 범위를 유지하는 것이 바람직하다.This increase in temperature gradually rises with time, but when it exceeds 60 ° C, the saturated vapor pressure due to water vapor is excessively increased and the vacuum pressure is reduced, so that a temperature using a known heat exchanger (not shown) is used. It is desirable to maintain the range.

도 6은 시간별 가축 분뇨의 변화상태를 나타낸 도면으로서, 상기한 시간이 경과함에 따라 폐수의 액비화공정이 진행되며, 발효정도에 따른 폐수의 색상이 검회색에서 암갈색을 변화한 후에 진갈색으로 변화하게 된다. 6 is a view showing the change state of livestock manure over time, the liquefaction process of the wastewater is progressed as the time passes, the color of the wastewater according to the degree of fermentation is changed to dark brown after changing from dark gray to dark brown .

즉, 본 발명의 액비화방법은 입자의 소분화에 의해 표면적이 증가하게 됨과 아울러, 온도가 상승하게 되면서 미생물의 활동이 극대화되어 대략 72시간 내의 단시간내에 폐수의 액비화공정이 완료되므로, 액비화에 소요되는 시간을 단축시킬 수 있다. In other words, the liquid liquefaction method of the present invention increases the surface area by subdividing the particles, and as the temperature increases, the activity of the microorganisms is maximized, so that the liquefaction process of the wastewater is completed within a short time within approximately 72 hours. It can save time.

상기한 본 발명은 폐수를 벤츄리관(500)이 설치된 유로(200) 내부로 통과시키면서 입자를 소분화시키고, 입자의 소분화과정에서 폐수의 온도를 상승시켜 미생물의 활동성을 향상시킴으로써, 악취가 누설되지 않는 밀폐 순환방식으로 폐수를 단시간내에 액비화할 수 있는 이점을 갖는다.According to the present invention, the waste water is passed through the inside of the flow path 200 in which the venturi tube 500 is installed, and the particles are subdivided, and in the process of subdividing the particles, the temperature of the waste water is increased to improve the activity of the microorganisms, so that odor leaks. The closed circulation method does not have the advantage that the waste water can be liquefied in a short time.

이러한 액비화과정을 거친 액비는 활성저장조에서 2~7일 저장된 후에, 유기액비로 생산되거나, 미세고형응집 및 필터링 공정을 거쳐 재활용수로 정화 방류된다.After the liquid liquefaction process is stored in the active storage tank for 2 to 7 days, it is produced as an organic liquid ratio, or purified and discharged to recycled water through a fine solid agglomeration and filtering process.

* 도면의 주요부분에 대한 부호의 설명 *
100 : 저장탱크 300 : 펌프
400 : 자석부재 500 : 벤츄리관(구조체)
510 : 벤츄리관 몸체 512 : 중공
515 : 연결구 520 : 유입구
530 : 유출구 540 : 노즐부
550 : 나선형 홈부 Description of the Related Art [0002]
100: storage tank 300: pump
400: magnet member 500: venturi tube (structure)
510: Venturi tube body 512: hollow
515: connector 520: inlet
530: outlet 540: nozzle portion
550: spiral groove

Claims (4)

축산 분뇨 등의 폐수를 고액 분리시키고, 고액 분리된 폐수를 저장탱크(100)의 내부로 유입시키는 단계와,
상기 저장탱크(100)의 내부에 유입된 폐수를 상기 저장탱크(100)의 하부에 연결된 배관 형태의 유로(200) 내부로 통과시킨 후에 다시 저장탱크(100)의 내부로 순환되도록 압송시키는 단계를 구비하되,
상기 유로(200) 내에 배치되어 상기 압송되는 폐수를 와류 형태로 변환시키도록 나선형 홈부(550)가 중공(512)의 유입구(520)측 내주면에 형성된 벤츄리관(500)을 통과시켜 폐수 입자를 소분화시킴과 아울러, 상기 폐수의 온도를 상승시킨 후에 다시 저장탱크(50)의 내부로 압송하는 단계를 구비한 것을 특징으로 하는 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법.Solid-liquid separation of wastewater, such as livestock manure, and introducing the solid-liquid separated wastewater into the storage tank 100;
The step of passing the waste water introduced into the storage tank 100 into the pipe-shaped flow path 200 connected to the lower portion of the storage tank 100 to be circulated back into the storage tank 100 again. Have it,
The spiral groove 550 passes through the venturi tube 500 formed on the inner circumferential surface of the inlet 520 of the hollow 512 to convert the pumped wastewater into a vortex in the flow path 200. And differentiating, and raising the temperature of the wastewater and forcing the wastewater back into the storage tank (50). 청구항 1에 있어서,
상기 유로(200) 내에 자석부재(400)를 배치하여 상기 유로(200) 내부를 통과하는 폐수를 자기력으로 자화시키는 단계를 더 구비한 것을 특징으로 하는 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법.The method according to claim 1,
Magnetizing the livestock manure using a venturi tube structure, characterized in that the magnet member 400 is disposed in the flow path 200 to magnetize the wastewater passing through the flow path 200 by magnetic force. 청구항 1에 있어서,
상기 폐수의 온도를 상승시키는 단계는, 열교환기를 매개로 온도가 상승된 폐수를 40~60℃ 범위의 온도로 유지시키는 단계를 더 구비한 것을 특징으로 하는 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법.The method according to claim 1,
The step of raising the temperature of the waste water, the liquid liquefaction method of livestock manure using a venturi tube structure, characterized in that further comprising the step of maintaining the temperature of the waste water temperature is raised to 40 ~ 60 ℃ range via a heat exchanger. 청구항 1 내지 청구항 3중 어느 한 항에 있어서,
상기 벤츄리관(500)의 나선형 홈부(550)를 상기 유입구(520)측에서 상기 중공(512)의 중앙측으로 갈수록 폭이 확대되도록 형성시켜 난류와 소용돌이 현상을 증폭시키는 단계를 더 구비한 것을 특징으로 하는 벤츄리관 구조체를 이용한 가축 분뇨의 액비화방법.The method according to any one of claims 1 to 3,
It characterized in that it further comprises the step of amplifying the turbulence and vortex by forming a spiral groove portion 550 of the venturi tube 500 toward the central side of the hollow 512 from the inlet 520 side A liquid liquefaction method of livestock manure using the Venturi tube structure.
KR1020120070691A 2012-06-29 2012-06-29 A method for making liquid fertilizer from the livestock excretions using a venturi tube KR101250348B1 (en)

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