[특허]Process for disposing of waste water

Process for disposing of waste water 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C02F-003/30
출원번호	US-0375729 (1995-01-20)
우선권정보	JP-0197265 (1991-07-12)
발명자 / 주소	Tambo Norihito (10-33 Tonden 2jo 4-chome Kita-ku Sapporo-shi Hokkaido 060 JPX) Shimizu Tatsuo (6-7-33 Hachiken 3jo Nishi 3-chome Nishi-ku Sapporo-shi Hokkaido 063 JPX)
출원인 / 주소	Tambo Norihito (Hokkaido JPX 05) Shimizu Tatsuo (Hokkaido JPX 05) Tsukishima Kikai Co., Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

Waste water is disposed in a flocculation mixing tank 1, an anaerobic tank 2 and an aerobic tank 3 connected in series. First, a dephosphorization flocculating agent and, if necessary, a polymeric flocculating agent are added to waste water in order to produce and grow phosphorus-containing flocs therein. Then, to the water is added a recycling solution from an aerobic tank 3, said solution containing nitrates and nitrites. The mixture water is charged in an anaerobic tank 2 until microbially decomposable components (herein referred to BOD components), nitrates and nitrites are anaerobically and microbially decomposed and gas is produced. In the aerobic tank 3 is charged a supernatant solution from the anaerobic tank 2, said solution containing ammonium compound and BOD components, to nitrates, nitrites and CO2. At least a part of supernatant solution containing the nitrates and nitrites is recycled to the anaerobic tank 2. Solids discharged from the anaerobic tank 2 and the aerobic tank 3 are wasted. Nitrogen compounds and phosphorus compounds as well as BOD components are removed from waste water.

대표청구항 ▼

A process for disposing of waste water by providing a first anaerobic disposal process and a second aerobic disposal process in series and continuously removing at least suspended solids, microbially decomposable organic substances, nitrogen compounds and phosphorus compounds in waste water, which comprises: a) adding a dephosphorization flocculating agent to waste water feed until phosphorus-containing flocs are produced, and mixing the waste water with a recycling solution from the second aerobic disposal process said recycling solution containing at least nitrates and nitrites, to produce mixed waste water containing the phosphorus-containing flocs, b) introducing the mixed waste water containing the phosphorus-containing flocs into the first anaerobic disposal process containing at least denitrifying bacteria, converting therein the nitrates and nitrites to nitrogen gas, anaerobically decomposing the microbially decomposable organic substances and exhausting resulting gas from said first anaerobic disposal process, c) removing solids from waste water which has been treated in said anaerobic disposal process to obtain a supernatant solution, d) introducing said supernatent solution resulting from the anaerobic disposal process into the second aerobic disposal process containing at least nitrifying bacteria, converting therein ammonium compounds in the supernatent solution to nitrates and nitrites and aerobically decomposing residual microbially decomposable organic substances, and exhausting gases from said second aerobic disposal process, and e) recycling at least a part of a solution aerobically treated or a part of a supernatent solution obtained after suspended solid components have been removed from the solution aerobically treated, into said anaerobic disposal process.

이 특허를 인용한 특허 (35)

Miklos, Daniel R., Apparatus and methods for control of waste treatment processes.
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Miklos, Daniel R., Apparatus and methods for control of waste treatment processes.
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Miklos, Daniel Robert, Apparatus and methods for control of waste treatment processes.
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Fassbender, Alexander G., Enhanced biogas production from nitrogen bearing feed stocks.
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Erdogan, Argun O.; Doyle, Michael L., Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle.
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Erdogan, Argun O.; Doyle, Michael L., Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle.
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Steven R. Woodruff, Food, animal, vegetable and food preparation byproduct treatment apparatus and process.
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Liu, Wenjun; Jordan, Edward J.; Zuback, Joseph E.; Smith, George W., Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Liu, Wenjun; Jordan, Edward John; Roehl, Marc, Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Liu, Wenjun; Jordan, Edward John; Smith, George W., Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Liu, Wenjun; Jordan, Edward John; Smith, George W., Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Liu, Wenjun; Jordan, Edward John; Smith, George W., Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Liu, Wenjun; Jordan, Edward John; Smith, George W.; Zuback, Joseph Edward, Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods.
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Jones Richard Bernard,GBX ; Watson Andrew James,GBX, Liquid effluent treatment plant and process.
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Jones Richard Bernard,GBX, Liquid effluent treatment process and plant.
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Liu, Wenjun; Jordan, Edward John; Gallagher, Paul M., Methods and systems for treating wastewater.
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Abu Orf,Mohammad M., Multivalent metal ion management for low sludge processes.
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Barrenechea Luis Perez,VEX, Process for making polymeric complex from residual or by-product effluents from distilleries.
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Smith, George W., Process for treating BOD-containing wastewater.
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Tomita Minoru,JPX, Process for treatment of organic wastewater.
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Elefritz, Jr.,Robert A.; Barnes,Dennis J., Process to enhance phosphorus removal for activated sludge wastewater treatment systems.
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Curtis, Betty Ann; Roehl, Marc; Doyle, Michael; Petit, Peter J., Screening of inert solids from a low-yield wastewater treatment process.
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Kim,Kwang Soo; Gee,Chai Sung; Lee,Hee Ja; Kim,Chang Woon; Seo,Byung Won; Ahn,Kwang Ho; Cho,Hyun Hee; Byun,Yo Sub, Sewage treatment apparatus using self-granulated activated sludge and sewage treatment method thereof.
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Olson, John Edward, Systems and methods for nutrient removal in biological treatment systems.
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O'Regan, Jr., Patrick T., Systems and methods for water treatment and remediation.
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Miklos, Daniel R., Waste treatment with control over biological solids.
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Miklos, Daniel Robert, Waste treatment with control over biological solids.
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Miklos, Daniel Robert, Waste treatment with control over biological solids.
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Miklos,Daniel R., Waste treatment with control over biological solids.
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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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Process for disposing of waste water 원문보기

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