[특허]Sewage system for the treatment of segregated domestic waste water

[미국특허] Sewage system for the treatment of segregated domestic waste water 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C02C-001/06
출원번호	US-0427118 (1982-09-29)
발명자 / 주소	Laak Rein (149 Brown Rd. Storrs CT 06268)
인용정보	피인용 횟수 : 42 인용 특허 : 5

초록 ▼

Separating domestic waste water for aerobic filtration of black water and subsequently combining the filtration with grey water provides a convenient source of carbon and anaerobic matter for biological dentrification of nitrates in a filtration system of anaerobic atmosphere achieved biologically through normal decomposition. Improved filter means for the black water includes alternating layers of stone and sand, the latter being well ventilated to maintain at least slight acidity (pH=4).

대표청구항 ▼

In a sewage treatment system of the type wherein human waste and flush water (black water) is segregated from the waste water from laundry and dishwashing waste (grey water) and wherein said segregated black water and grey water are fed to separate septic tanks for each type of waste water, the improvement comprising: nitrification filter means for receiving black water emanating from said black water septic tank and including alternating layers of sand and stone in said filter means, water pervious membranes below the sand layers to prevent sand from passing downward into said stone layer therebelow, black water inlet means in an upper layer of stone, outlet means in a lower layer of sand, atmospheric vent means for said nitrification filter means to provide atmospheric oxygen to at least the sand layers of said filter means and to ventilate said sand layers by providing a path for nitrogen in the black water, said vent means achieving aerobic nitrification of the black water filtrate and said filtrate being non-alkaline or slightly acidic with a pH of less than 4, denitrification filter means for receiving the grey water from said grey water septic tank and also the black water filtrate from said nitrification filter means, said denitrification filter means comprising a series of adjacent anaerobic reactor trenches, each reactor trench having inlet and outlet means connecting said reactor trenches in series to provide a reductive atmosphere (anoxic) for the black water filtrate and the grey water, each of said reactor trenches including at least one stone layer with said inlet means provided in a lower region thereof, and soil layers below said stone layers in said reactor trenches, said outlet means provided in an upper region of said reactor trenches in communicating with adjacent reactor trench inlet means whereby denitrification of the combined black and grey water is enhanced due to the combining nitrates from the former and carbon an anaerobic matter from the latter.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Savage Elton S. (Wexford PA) Chen Jeffrey J. (Pittsburgh PA), Apparatus for the treatment of wastewater.
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Turner Abner B. (Greensburg PA), Apparatus for treating industrial and domestic waste waters.
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Davis Robert B. (New Britain CT), Recirculating sewerage system.
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Parker Denny S. (Berkeley CA), Sewage treatment process.
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Hopcroft ; Francis J., Waste-water treatment system.
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이 특허를 인용한 특허 (42) 인용/피인용 타임라인 분석

Reinsel Mark A. ; Botz Maxwell K., Anoxic biotreatment cell.
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Kallenbach Thomas J. (Bozeman MT) Buchanan Justin M. (Bozeman MT) Goodrich Matthew H. (Bozeman MT) Skinner Ronald V. (Ronan MT) Poncelet Greg R. (Bozeman MT) Kallenbach Trina J. (Bozeman MT), Apparatus and method for modifying waste water.
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Yang,Kihae; Dock,Koseok, Apparatus and method for treating wastewater using contact media.
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Potts,David A., Apparatus and method for wastewater treatment.
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Humphrey, Mary; Rice, John B., Collapsible digester.
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Humphrey,Mary; Rice,John B., Collapsible digester.
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Patton, David W.; Lamb, Gerald Lee; Miller, Jamie Lee, De-nitrification treatment system and method.
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McGrath, Michael B.; Santos, Timothy, Denitrification process.
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Gavin Norman, Filter and housing.
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Gavin Norman W., Filter system for septic tank.
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Eckman, Noadiah S., Graywater systems.
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Wilkes Robert D., Grey water filter tank recovery system and filter backwashing system.
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Stoessel, Ronald K., Metal stearate denitrification system.
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Dobie,Keith; Pedros,Philip B., Method and apparatus for cleaning effluent.
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Braun, Ulrich, Method and device for sewage treatment.
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Ulrich Braun DE, Method and device for sewage treatment.
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Suzuki Haruhiko,JPX ; Inoue Takakazu,JPX ; Yamada Atsushi,JPX ; Kimura Tetsuya,JPX ; Kono Eiji,JPX ; Sekiguchi Tatsuhiko,JPX, Organic waste water treating apparatus having treating layer and auxiliary layer.
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Talbot, Pierre; Lacasse, Roger; Arcand, Yves; Vermeersch, Olivier; Mlynarek, Jacek, Oriented structure for treating a fluid.
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Everson, Douglas G., Passive drain field system for wastewater treatment and associated methods.
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Boyd,Steven H.; Azad,Abdul R. M., Process and apparatus for waste water treatment.
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Collin Jean J. (Orlans FRX) Landreau Alain (Orlans FRX) Talbo Henri (Rennes FRX) Martin Guy (Cesson SevignFRX) Morvan Jean (Liffr FRX), Process for denitrifying subterreanean waters to make them potable.
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Sagastume Juan Manuel Morgan,MXX ; Robles Adalberto Noyola,MXX, Residual water treatment microplant for small flows.
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Jowett, E. Craig, Sewage nitrate removal by free-draining asphyxiant filtration and carbon addition.
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Kim,Jung Yong, Soil covered environmentally affirmative household sewage treatment system.
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Patrick T. Gates ; Todd M. Gates, System and method for treating sanitary wastewater for on-site disposal.
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Houck Michael H. ; Weaver Thomas K., System for filtration of septic tank sewage effluent.
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Eriksson Bertil,SEX, System for handling drain waters of different degrees of contamination.
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Clint R. Elston, Waste and wastewater treatment and recycling system.
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Elston Clint R., Waste and wastewater treatment and recycling system.
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Perkins, John Larry, Waste water filtering system.
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Potts, David A., Wastewater leaching system.
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Rhu, Dae Hwan; Yeo, Yeong Ki; Seo, Se Wook; Yune, Yong June; Choi, Bong Choel; Lee, Byung Suk; Lee, Hwa Sun, Wastewater treatment apparatus with two-stage multimedia biological filtration process.
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Martin Joseph P. (252 Sagamore Rd. Havertown PA 19083) Zitomer Kenneth J. (6340 N. 7th St. Philadelphia PA 19126), Wastewater treatment system.
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Stuth, Sr.,William L.; Lee,Matthew M., Wastewater treatment system and method.
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Yano, Masao, Water clarification treatment system through denitrification reduction by facultative anaerobic bacteria.
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Cawley William E. (Richland WA) Mercer Basil W. (Harrison ID), Water recycle system.
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[미국특허] Sewage system for the treatment of segregated domestic waste water 원문보기

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