KR100321276B1 - Livestock wastewater and excrement treatment apparatus - Google Patents

Livestock wastewater and excrement treatment apparatus Download PDF

Info

Publication number
KR100321276B1
KR100321276B1 KR1019980052587A KR19980052587A KR100321276B1 KR 100321276 B1 KR100321276 B1 KR 100321276B1 KR 1019980052587 A KR1019980052587 A KR 1019980052587A KR 19980052587 A KR19980052587 A KR 19980052587A KR 100321276 B1 KR100321276 B1 KR 100321276B1
Authority
KR
South Korea
Prior art keywords
urine
livestock wastewater
solid
thin film
low temperature
Prior art date
Application number
KR1019980052587A
Other languages
Korean (ko)
Other versions
KR19990024084A (en
Inventor
김홍진
Original Assignee
주식회사 월드엔지니어링
김홍진
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 주식회사 월드엔지니어링, 김홍진 filed Critical 주식회사 월드엔지니어링
Priority to KR1019980052587A priority Critical patent/KR100321276B1/en
Publication of KR19990024084A publication Critical patent/KR19990024084A/en
Application granted granted Critical
Publication of KR100321276B1 publication Critical patent/KR100321276B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/16Treatment of sludge; Devices therefor by de-watering, drying or thickening using drying or composting beds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

PURPOSE: Provided is a livestock wastewater and excrement treatment apparatus for recycling solid matter as compost and liquid component as fertilizer, and deodorization by condensing the odor gas. CONSTITUTION: The apparatus comprises a solid/liquid separator(2) for separating livestock wastewater into solid matter and urine, a thin film low temperature vacuum dryer(10) for distributing the urine to inner wall and boiling the urine under vacuum condition using a heater(17) to separate the urine into vapor and powder, a condenser(20) for condensing the vapor generated by the drier(10) to condensate water, a storage tank(5) for storing the solid matter separated by the solid/liquid separator(2) and transported by a transportation device(4), and a preheater(9) for heating the urine while the urine is flowing through a transportation pipe between a first storage tank(3) and the thin film low temperature vacuum drier(10) to a predetermined temperature.

Description

축산폐수 및 분뇨 처리장치Livestock Wastewater and Manure Treatment System

본 발명은 축산폐수 및 분뇨 처리장치에 관한 것으로서, 좀 더 상세하게는 축산 폐수 및 분뇨를 분리하여 고형분은 안정화시키어 퇴비로 사용되게 하고 뇨 등의 액상체는 비등건조 처리되도록 한 것이다.The present invention relates to a livestock wastewater and manure treatment device, more specifically, to separate the livestock wastewater and manure to stabilize the solid content to be used as a compost and the liquid such as urine to be boiled dry treatment.

축산폐수 및 분뇨는 유기물의 농도가 높아 처리기술이 복잡하고 그에 따른 처리비용이 과다한 점등으로 인하여 일부는 그대로 방출하거나 안전하게 처리하지 못한 상태에서 배출되고 있어 매우 심각한 환경오염을 가중시키고 있다. 더욱이 소단위 농가등에서는 위에서와 같은 제반시설에 대한 과중한 비용으로 상당한 어려움을 겪고 있는 실정이다. 또한 가축배설물은 축산폐수가 아니라 토지의 개량, 농작물에 필요한 영양소로서 귀중한 유기자원으로 사용되어 왔으나 축사의 대형화와 비료등의 사용으로 인해 처리에 문제가 제기되고 있다.Livestock wastewater and manure have a high concentration of organic matter, which is complicated due to the complicated treatment technology, and due to excessive lighting, some of them are being discharged as they are or are not safely treated. In addition, small-scale farmers, etc. are experiencing considerable difficulties due to the heavy costs for the above facilities. In addition, livestock excretion has been used as a valuable organic resource as a nutrient for land improvement and crops, not as livestock waste, but problems have arisen in processing due to the enlargement of livestock houses and the use of fertilizers.

이러한 점을 감안하여 개발, 보급되고 있는 축산 발효장치는 수분조절제인 톱밥의 부족과 운영경비가 과다하게 들고 톱밥자체의 분해, 진행속도가 느려서 장시간 처리시간이 소요될 뿐만 아니라 처리공간의 면적이 많이 요구되었고, 또한 시설비의 부담으로 농가가 과중한 부담을 갖고 있는 실정이다.In view of this, the livestock fermentation system developed and disseminated has not only sawdust, which is a moisture control agent, excessive operating expenses, but also a long time for processing time due to slow decomposition and progress of sawdust itself, and a large amount of processing space is required. In addition, the farmhouse is burdened by the burden of facility costs.

본 발명의 목적은 축산 폐수 및 분뇨를 처리함에 있어, 특히 수질오염의 주원인 중 큰 비중을 차지하는 가축배설물을 분리하여 고형분은 안정화시키어 퇴비로 사용되게 하고 액상분은 진공건조방식에 의하여 액비나 분말상태로 만들어 유기질 비료로 재활용하고 건조시 발생하는 악취물질은 응축시키어 무취상태로 처리하는 축산폐수 및 분뇨 처리장치를 제공함에 있다.An object of the present invention is to treat livestock wastewater and manure, in particular, to separate the animal waste that occupies a large proportion of the main cause of water pollution, to stabilize the solid content to be used as compost and liquid components are liquid or powder by vacuum drying method It is to provide a livestock wastewater and manure treatment device to recycle the organic fertilizer and odorous substances generated during drying to condensate odorless state.

본 발명은 상기한 목적을 구현하기 위하여 다음과 같은 특징을 갖는다.The present invention has the following features to achieve the above object.

본 발명의 특징은 축산폐수를 고형액과 뇨로 분리하는 고액분리장치와, 뇨를 공급받아 뇨를 내벽에 액막으로 얇게 펼쳐주는 작용과 함께 열매체 가열장치로 진공상태에서 비등시키어 증기 및 분말로 발생시키는 틴필름(THIN FILM)저온진공건조장치와, 비등으로 발생된 증기를 응축시키어 응축수로 변환, 배출하는 응축장치로 이루어지는 축산폐수 및 분뇨 처리장치에 있어서,A characteristic of the present invention is a solid-liquid separation device for separating livestock wastewater into a solid solution and urine, and the urine is supplied to the urine to thin the liquid film on the inner wall with a heat medium heating device to boil in vacuum to generate steam and powder In a livestock wastewater and manure treatment device comprising a THIN FILM low temperature vacuum drying device and a condenser which condenses steam generated by boiling and converts it into condensate and discharges it,

상기 고액분리장치에 의하여 분리된 고형액을 이송장치에 의하여 저장창고에 이송되도록 설치하고, 분리된 뇨를 1차 하는 저장탱크와 틴필름(THIN FILM)저온진공건조장치의 이송라인사이에 이송되는 뇨를 가열시키도록 예열장치를 구비한 홉퍼형상의 저장장치를 설치함을 특징으로 한다.The solid solution separated by the solid-liquid separation device is installed to be transferred to the storage warehouse by the transfer device, and is transferred between the storage tank for primary separation of urine and the transfer line of the THIN FILM low temperature vacuum drying device. And a hopper-shaped storage device having a preheating device for heating the urine.

도 1은 본 발명의 전체적인 시스템도1 is an overall system diagram of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1:축산폐수 저장탱크 2:고액분리기1: Livestock wastewater storage tank 2: Solid-liquid separator

3:뇨저장탱크 5:안정화 저장탱크3: urine storage tank 5: stabilized storage tank

8:저장장치 9:예열장치8: Storage 9: Preheating device

10:틴필름(THIN FILM)저온진공건조장치10: THIN FILM LOW TEMPERATURE VACUUM DRYING APPARATUS

11:이중자케트 12:모타11: Double-jacket 12: Mota

13:로터 14:추진안내날개13: Rotor 14: Promotion guide wings

15:홉퍼 17:열매체가열장치15: Hopper 17: heat medium heating device

20:응축장치 21:응축기20: Condenser 21: Condenser

23:냉각탑 24:응축수탱크23: cooling tower 24: condensate tank

25:진공펌프25: vacuum pump

이하, 첨부한 도면에 의하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 전체적인 시스템을 도시한 것으로, 이를 참조하여 상세히 설명하면,Figure 1 illustrates the overall system of the present invention, described in detail with reference to this,

축산폐수를 모아지는 축산폐수 저장탱크(1)에서 이동된 축산폐수를 고액분리장치(2)에 의하여 원심분리작용으로 고형분과 뇨로 분리하여 분리된 고형분을 콘베이어 등의 이송장치(4)에 의하여 이송 저장하는 안정화 저장창고(5)에 저장되는데 고형분에 악취와 파리, 모기 등의 해충을 방제하기 위하여 분말의 소석회를 소량투입으로 안정화 퇴비처리를 하여 토질개량제와 유기질비료로 사용될 수 있도록 한다.The livestock wastewater moved from the livestock wastewater storage tank (1) where the livestock wastewater is collected is separated into solids and urine by centrifugal separation by the solid-liquid separator (2), and the separated solids are transferred by a conveyer (4) such as a conveyor. It is stored in the stabilized storage warehouse (5) to be stored in order to control the pests such as odors, flies, mosquitoes, etc. in the solid content by stabilizing composting with a small amount of powdered lime to be used as a soil improver and organic fertilizer.

상기 분리과정에서 액상분은 뇨가 95%이상을 함유하고 있는 상태로 1차 보관하는 뇨저장탱크(3)에 보관되어진다.In the separation process, the liquid component is stored in the urine storage tank 3 for primary storage in a state containing 95% or more of urine.

뇨저장탱크(3)에 보관된 뇨를 슬러지 이송펌프(6)에 의하여 이송라인(7)을 따라 이송되어 1차 예열시키도록 히타 등의 예열장치(9)를 설치한 홉퍼형상을 이루는 자동연속투입 저장장치(8)에 공급하고, 상기 뇨저장탱크(3)에 수위감지장치를 설치하여 수위에 따라 자동으로 슬러지 이송펌프(6)를 작동시키어 적정량이 공급이 이루어지도록 한다. 또한 저장장치(8)에 공급된 뇨는 1차적으로 예열장치(9)에 의하여 40℃∼50℃로 가열시킨 상태로 틴필름(THIN FILM)저온진공건조장치(10)로 투입이 된다.Automatic continuity forming a hopper shape in which a preheating device 9 such as a heater is installed so that urine stored in the urine storage tank 3 is transferred along the transfer line 7 by the sludge transfer pump 6 and preheated first. It is supplied to the input storage device (8), the water level detection device is installed in the urine storage tank (3) to automatically operate the sludge transfer pump (6) according to the water level so that the appropriate amount is supplied. In addition, the urine supplied to the storage device 8 is first introduced into the THIN FILM low temperature vacuum drying device 10 while being heated to 40 ° C. to 50 ° C. by the preheating device 9.

틴필름(THIN FILM)저온진공건조장치(10)에 투입된 뇨를 기계적인 구동장치에 의하여 이중자켓트(11)로된 내벽에 액막으로 얇게 펼쳐주는 작용과 함께 이를 열매체가열장치(17)에 의하여 내벽을 가열시키어 진공작용으로 인한 감압상태에서 1차 가열된 뇨를 단시간에 비등시키도록 한다.The thin film of urine introduced into the THIN FILM low temperature vacuum drying apparatus 10 is mechanically spread on the inner wall of the double jacket 11 with a liquid film, and the heat medium is heated by the heating medium 17. The inner wall is heated to boil the primary heated urine in a short time under reduced pressure due to the vacuum action.

그리고 상기 과정에 의하여 비등된 증기는 응축시키어 응축수로 변환, 배출하는 응축장치(20)로 보내져 처리하게 된다.In addition, the steam boiled by the above process is condensed, converted into condensed water, and sent to a condenser 20 for discharge.

상기 틴필름(THIN FILM)저온진공건조장치(10)는 원통형상의 자케트(11) 상부에 설치한 모터(12)에 의해 구동되게 축설한 로타(13)의 회전에 의하여 로타(13)의 둘레에 교호적으로 설치한 추진안내날개(14)가 유입되는 뇨를 이중자케트(11)의 내벽에 액막으로 얇게 펼쳐주게 되고 동시에 이중자케트(11)내에 열매체 오일저장탱크와 펌프 및 보일러를 포함하는 열매체 가열장치(17)에 의하여 순환된 가열열매체의 가열로 인하여 뇨가 최소의 시간에 진공에 의한 감압상태에서 저온도로 비등되도록 하며, 비등으로 발생되는 소량의 분말은 하단부에 설치된 홉퍼(15)로 모아지면서 배출구(16)를 통해 외부로 배출시키도록 한 것이다.The thin film (THIN FILM) low temperature vacuum drying apparatus 10 is the circumference of the rotor 13 by the rotation of the rotor 13 arranged to be driven by the motor 12 installed on the cylindrical jacket 11 Urine flows into the inner wall of the double jacket (11) to thinly spread the urine flowing in the guide guide blades 14 installed alternately in the double jacket 11 at the same time includes a heat medium oil storage tank, a pump and a boiler. Due to the heating of the heating heat medium circulated by the heating medium heating device 17, urine is boiled at a low temperature in a reduced pressure state by vacuum at a minimum time, and a small amount of powder generated by boiling is provided at the bottom of the hopper 15 As it is collected to be discharged to the outside through the outlet (16).

상기 응축장치(20)는 틴필름(THIN FILM)저온진공건조장치(10)에 의해 비등된 증기를 응축기(21)에서 받아 냉각탑(23)에 의하여 냉각된 냉각수가 순환펌프(22)의 공급으로 증기를 응축시키어 응축된 응축수는 탱크(24)에 모여 배수라인을 통해 배출되어 청소용등으로 재활용할 수 있다.The condenser 20 receives the steam boiled by the THIN FILM low temperature vacuum drying apparatus 10 from the condenser 21 and the cooling water cooled by the cooling tower 23 is supplied to the circulation pump 22. The condensed water condensed by condensing the steam is collected in the tank 24 and discharged through the drain line can be recycled for cleaning.

한편, 응축수탱크(24)를 통해 연결되는 진공펌프(25)에 의하여 전시스템에 진공을 유지하며 흐름은 강제, 배기가 원활히 유지되도록 하기 위하여 진공도는 600-650mmHg를 유지시키는 것이 바람직하다.On the other hand, it is preferable to maintain the vacuum degree 600-650mmHg in order to maintain the vacuum in the entire system by the vacuum pump 25 connected through the condensate tank 24, the flow is forced, exhaust is smoothly maintained.

그리고 틴필름(THIN FILM)저온진공건조장치(10)에 스케일 청소를 할 경우에는 뇨를 개폐하는 밸브를 차단하고 3-5분정도 시스템을 가동시키면 치적된 스케일등은 분말화되어 하방의 홉퍼(15)로 떨어져 외부로 배출시킬 수 있어 스케일방지와 청소작업이 이루어진다.In the case of the scale cleaning on the THIN FILM low temperature vacuum drying apparatus 10, the valves for opening and closing the urine are shut off and the system is operated for about 3 to 5 minutes. 15) can be discharged to the outside to prevent scaling and cleaning.

이상과 같이 본 발명은 처리가 난이한 축산폐수 및 분뇨가 분리과정을 거쳐 최소의 열량으로 최대용량을 처리하도록 뇨를 내벽에 얇게 펼쳐서 최소의 체류시간으로 진공상태에서 연속적으로 비등, 건조시킨 다음 응축수인 증류수로 처리하는 과정에 의해 근본적으로 폐수를 무방류 처리하므로서 환경오염에 상당한 기여를 할수 있는 것이며, 또한 농가에서 사용할 때에 따르는 유지, 관리비가 극히 저렴한 경제성을 갖는 효과가 있다.As described above, the present invention spreads the urine thinly on the inner wall to treat the maximum capacity with the minimum amount of heat through the separation process of livestock wastewater and manure, which is difficult to process, and then continuously boils and vacuums the vacuum at the minimum residence time and then condensate. By treating with distilled water, it is possible to make a substantial contribution to environmental pollution by essentially freeing wastewater, and there is an effect of having economical maintenance and management costs that are extremely low when used in farms.

Claims (1)

축산폐수를 고형액과 뇨로 분리하는 고액분리장치(2)와, 뇨를 공급받아 뇨를 내벽에 액막으로 얇게 펼쳐주는 작용과 함께 열매체 가열장치(17)로 진공상태에서 비등시키어 증기 및 분말로 발생시키는 틴필름(THIN FILM)저온진공건조장치(10)와, 비등으로 발생된 증기를 응축시키어 응축수로 변환, 배출하는 응축장치(20)로 이루어지는 축산폐수 및 분뇨 처리장치에 있어서,A solid-liquid separator (2) for separating livestock wastewater into solid fluid and urine, and the action of spreading urine thinly as a liquid film on the inner wall with urine supplied, and boiling it in a vacuum state with a heating medium (17) to generate steam and powder. In a livestock wastewater and manure treatment device comprising a thin film (THIN FILM) low temperature vacuum drying device 10, and a condenser 20 for condensing the steam generated by boiling, converting to condensate, discharged, 상기 고액분리장치(2)에 의하여 분리된 고형액을 이송장치(4)에 의하여 저장창고(5)에 이송되도록 설치하고, 분리된 뇨를 1차 하는 저장탱크(3)와 틴필름(THIN FILM)저온진공건조장치(10)의 이송라인사이에 이송되는 뇨를 적정온도로 가열시키도록 예열장치(9)를 구비한 홉퍼형상의 저장장치(8)를 설치하여 틴필름(THIN FILM)저온진공건조장치(10)에 뇨가 적정온도로 가열하여 공급되도록 함을 특징으로 하는 축산폐수 및 분뇨처리장치.The solid solution separated by the solid-liquid separator 2 is installed to be transferred to the storage warehouse 5 by the transfer device 4, and the storage tank 3 and the tin film primary to separate the urine are separated. Tin film (THIN FILM) low temperature vacuum by installing a hopper-shaped storage device (8) equipped with a preheating device (9) to heat the urine transferred between the transfer lines of the low temperature vacuum drying device (10) to an appropriate temperature Livestock wastewater and manure treatment device, characterized in that the urine is supplied to the drying device 10 by heating to an appropriate temperature.
KR1019980052587A 1998-12-02 1998-12-02 Livestock wastewater and excrement treatment apparatus KR100321276B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980052587A KR100321276B1 (en) 1998-12-02 1998-12-02 Livestock wastewater and excrement treatment apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980052587A KR100321276B1 (en) 1998-12-02 1998-12-02 Livestock wastewater and excrement treatment apparatus

Publications (2)

Publication Number Publication Date
KR19990024084A KR19990024084A (en) 1999-03-25
KR100321276B1 true KR100321276B1 (en) 2002-11-20

Family

ID=37460542

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980052587A KR100321276B1 (en) 1998-12-02 1998-12-02 Livestock wastewater and excrement treatment apparatus

Country Status (1)

Country Link
KR (1) KR100321276B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010036810A (en) * 1999-10-12 2001-05-07 이종열 Disposal method and device of stockbreeding wastewater
KR20020000336A (en) * 2000-06-23 2002-01-05 김정만 A treatment system for excrementitious matter of a stock raising
KR20020060356A (en) * 2001-01-10 2002-07-18 임호덕 Filth treating equipment for toilet
KR100691852B1 (en) * 2004-11-19 2007-03-12 선경워텍(주) Non oxidizing biocide comprising chloroacetaldehyde and the preparation method thereof
CN112142148A (en) * 2020-10-22 2020-12-29 南通久华环保设备科技有限公司 High-salinity wastewater treatment system and treatment method
CN113896400A (en) * 2021-10-19 2022-01-07 北京誉铧生物科技有限公司 Low-temperature hydrolysis drying process system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01274892A (en) * 1988-04-26 1989-11-02 Toshiba Corp Device for treating sludge separating water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01274892A (en) * 1988-04-26 1989-11-02 Toshiba Corp Device for treating sludge separating water

Also Published As

Publication number Publication date
KR19990024084A (en) 1999-03-25

Similar Documents

Publication Publication Date Title
EP0906248B2 (en) Optimised method for the treatment and energetic upgrading of urban and industrial sludge purifying plants
US9327997B1 (en) Water treatment process and apparatus
EP3032206A1 (en) Food waste vacuum-drying disposal system
US6623650B2 (en) Processes and apparatus for treating sewage or like sludge
US7140122B1 (en) Vacuum treatment of waste stream with anti-incrustation measures
KR102243073B1 (en) Apparatus for processing livestock excretion
EP0498084B1 (en) A method for processing manure
KR100321276B1 (en) Livestock wastewater and excrement treatment apparatus
EP1683766B1 (en) Method of reducing the pollution load of purines
US11000777B1 (en) Apparatus and process for treating water
KR100349218B1 (en) The drying system and method for fuelizing of wet sludge
KR20010036810A (en) Disposal method and device of stockbreeding wastewater
KR101448262B1 (en) Stock farm waste water and waste matter purify apparatus and method
JPH11128999A (en) Method and apparatus for solid-liquid separation and clarification treatment for excreta of domestic animal
DK2020580T3 (en) Process for reprocessing of silage
EP1447385A1 (en) A process for treating liquid organic wastes by bidistillation with an intermediate treatment of sulfuric acid
KR100192894B1 (en) Evaporation drying system of waste water from livestock
KR100233324B1 (en) Method and apparatus for fermentation of organic waste
JPH1085794A (en) Sludge treatment method
JPH11221599A (en) Treatment of livestock excreta and food processing sludge and device therefor
RU2083510C1 (en) Wasteless method for cleaning farm drainage
KR19990001028A (en) Odorless odorless livestock wastewater treatment system and treatment method
KR101743883B1 (en) Evaporation treatment method and apparatus for pig stale
KR20240097314A (en) Continuous drying treatment system for garbage
KR200411373Y1 (en) Animals waste water dispose

Legal Events

Date Code Title Description
A201 Request for examination
G15R Request for early opening
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: 20080107

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee