[특허]Device for treatment of wastewater by means of anaerobic fermentation

[미국특허] Device for treatment of wastewater by means of anaerobic fermentation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C02F-011/04
출원번호	US-0458816 (1983-01-18)
발명자 / 주소	Mtt Raimo (Helsinki FIX)
출원인 / 주소	Oy Tampella AB (FIX 03)
인용정보	피인용 횟수 : 18 인용 특허 : 8

초록 ▼

The invention relates to a device for treatment of wastewater by means of an anaerobic fermentation, which comprises a closed tank 1 and therein elements 2, 10 for feeding wastewater to be treated into the tank, elements 5, 6 3 for removing treated water, gas and sludge from the tank, elements 4 for mixing the contents of the tank and elements 7 for separating gas in the upper part of the tank. Deviating from the traditional completely mixed reactors the tank has been devided into two, on each other placed parts by means of the filters, which tank comprises a filter media bed containing at least one filter media which acts as an attachment bed for methane bacteria and on it a sludge and fluidized material bed, whereat the mixing elements 4 are below the filter and the feed elements 2, 10 for wastewater to be treated are fed below the filter 8 and the elements 5, 6 for removing treated water and gas are located in the tank part above the filter 8. In this way the cheap and simple device has been accomplished for treatment of wastewater, in which it has essentially been shown how acid and methane bacteria are mixed with each other.

대표청구항 ▼

A device for treatment of wastewater by anaerobic fermentation which comprises: a closed tank, a filter dividing said tank into upper and lower compartments, said upper compartment being useful in the treatment of wastewater with methane producing bacteria and said lower compartment being useful in the treatment of wastewater with acid producing bacteria, said filter including a bed of a particulate filter media action as an attachment means for said methane producing bacteria and preventing said methane producing bacteria from being completely removed from said tank with said treated wastewater, said filter further including a fluidized bed overlying said bed of said particulate filter media, said fluidized bed including sludge and a fluidizing agent, means for feeding wastewater to be treated into said lower compartment below said filter, means for removing treated wastewater, gas and sludge from said upper compartment, means for mixing wastewater in said lower compartment, and means for separating gas in said upper compartment; wherein said upper and lower compartments and said filter are associated such that wastewater fed into said lower compartment is treated with said acid producing bacteria, passed through said filter, and treated with said methane producing bacteria, and wastewater passing from said lower compartment into said upper compartment is incapable of recirculation to said lower compartment. The device of claim 1 further comprising a lamella separator below said filter in said lower compartment, said lamella separator distributing water upwardly and evenly through said filter facilitating the growth of the bubbles in said wastewater, and separating portions of sludge in said wastewater and returning them to said lower compartment.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Coulthard John L. (16 Newry St. Richmond ; Victoria AUX), Anaerobic filter.
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Jewell William J. (202 Eastwood Ave. Ithaca NY 14850), Methane production by attached film.
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Fan Liang-Tseng (Manhattan KS) Wen Chin-Yung (Morgantown WV), Method for wastewater treatment in fluidized bed biological reactors.
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Olesen ; Douglas E. ; Shuckrow ; Alan J., Process and system for treating waste water.
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Besik Ferdinand (3243 Chokecherry Crs. Mississauga ; Ontario CAX L5L 1B1), Process for purification of sanitary waters.
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Verde ; Luigi, Process for the biological purification of sewage.
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Price Richard H. (161 Jefferson Ave. Memphis TN 38103), Submerged anaerobic filter waste treatment apparatus.
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Ghosh Sambhunath (Chicago IL) Klass Donald L. (Barrington IL), Two phase anaerobic digestion.
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이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

Ruocco, Joseph J.; Kohl, Scott Dennis, Anaerobic wastewater treatment system and method.
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Doets Albert R. (Westzaan NLX), Apparatus for anaerobic purification of waste water.
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Durot Jean (Villepreux FRX) Nicol Roger (Issy les Moulineaux FRX), Apparatus for the anaerobic treatment of waste water.
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Downey, Robert A.; Jin, Song; Fallgren, Paul H., Biogasification of coal to methane and other useful products.
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Schaller, Earle, Density baffle for clarifier tank.
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Schaller, Earle, Density baffle for clarifier tank.
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Schaller, Earle; Schaller, Elaine, Density current baffle for a clarifier tank.
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Schaller, Earle; Schaller, Elaine, Density current baffle for a clarifier tank.
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Lendenfeld, Thomas, Device for monitoring water for microbial germs.
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Haridas, Ajit, Device for treatment of wastewater.
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Schaller Earle, Hinged cover for use in a clarifier tank.
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Schaller Earle, Hinged cover for use in a clarifier tank having an inboard launder channel configuration.
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Wickoren Dean R. (Paola KS), Method and apparatus for mixing liquid contents in a vessel.
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Downey, Robert A., Method for optimizing in-situ bioconversion of carbon-bearing formations.
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Downey, Robert A., Method for optimizing in-situ bioconversion of carbon-bearing formations.
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Downey, Robert A., Method for optimizing in-situ bioconversion of carbon-bearing formations.
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McDowell Curtis S. (Allentown PA), Submerged biological wastewater treatment system.
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McDowell Curtis S. (Allentown PA), Submerged biological wastewater treatment system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Device for treatment of wastewater by means of anaerobic fermentation 원문보기

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이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

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[미국특허] Device for treatment of wastewater by means of anaerobic fermentation 원문보기

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이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

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