JP2000271593A5 - - Google Patents

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JP2000271593A5
JP2000271593A5 JP1999080006A JP8000699A JP2000271593A5 JP 2000271593 A5 JP2000271593 A5 JP 2000271593A5 JP 1999080006 A JP1999080006 A JP 1999080006A JP 8000699 A JP8000699 A JP 8000699A JP 2000271593 A5 JP2000271593 A5 JP 2000271593A5
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Japan
Prior art keywords
fat
oil
separated
saponified
water
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JP1999080006A
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Japanese (ja)
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JP3852896B2 (en
JP2000271593A (en
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Priority to JP8000699A priority Critical patent/JP3852896B2/en
Priority claimed from JP8000699A external-priority patent/JP3852896B2/en
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Publication of JP2000271593A5 publication Critical patent/JP2000271593A5/ja
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Description

【発明の名称】油脂含有排水の嫌気性処理方法及び装置 [Description of the invention] Anaerobic treatment method and apparatus for waste water containing oil and fat

【０００１】
【発明の属する技術分野】
本発明は油脂含有排水の処理方法及び装置、特に油脂含有排水の嫌気性消化による処理方法及び装置に関するものである。[0001]
Field of the Invention
The invention method and apparatus for processing fat-containing wastewater, and more particularly to a processing method and apparatus according to the anaerobic digestion of fat-containing wastewater.

【０００７】
【課題を解決するための手段】
本発明者は上述の課題を解決すべく検討した結果、下記の手段により上記目的を達成できることを見いだし、本発明を完成した。
すなわち本発明の油脂含有排水の嫌気性処理方法は、油脂含有排水を油脂分と分離水とに分離した後、分離した油脂分を鹸化処理し、生成する油脂鹸化物を前記分離水とともにｐＨ１１以下の条件下で酸発酵処理することを特徴とするものである。
また、本発明の油脂含有排水の嫌気性処理装置は、油脂含有排水を油脂分と分離水とに分離する油脂分離装置、前記油脂分離装置で分離した油脂分を鹸化処理する鹸化処理槽、及び前記鹸化処理された油脂鹸化物を前記分離水とともに酸発酵処理する酸発酵処理槽を有することを特徴とするものである。 [0007]
[Means for Solving the Problems]
As a result of studies to solve the above problems, the inventor has found that the above objects can be achieved by the following means, and completed the present invention.
That is, in the anaerobic treatment method of the fat and oil containing waste water according to the present invention, the fat and oil containing waste water is separated into fat and oil and separated water, and the separated fat and oil is saponified to produce saponified oil and fat with pH of 11 or less. Acid fermentation treatment under the following conditions.
Further, the anaerobic treatment apparatus for fat and oil containing waste water according to the present invention comprises a fat and oil separation apparatus for separating fat and oil containing waste water into fat and oil and separated water, a saponification treatment tank for saponifying fat and oil separated by the fat and oil separation apparatus, It is characterized by having an acid fermentation processing tank which carries out acid fermentation processing of the saponified oil and fat saponified product with the separated water.

Claims (5)

油脂含有排水を油脂分と分離水とに分離した後、分離した油脂分を鹸化処理し、生成する油脂鹸化物を前記分離水とともにｐＨ１１以下の条件下で酸発酵処理することを特徴とする油脂含有排水の嫌気性処理方法。The oil- and fat-containing wastewater is separated into an oil-and-fat portion and separated water, and the separated oil-and-fat portion is saponified, and the oil-saponified product produced is acid-fermented together with the separated water under pH 11 or less Anaerobic treatment method of contained wastewater. 前記油脂鹸化物が脂肪酸のアルカリ金属塩であることを特徴とする請求項１に記載の油脂含有排水の嫌気性処理方法。The method according to claim 1, wherein the oil / fat saponified product is an alkali metal salt of a fatty acid. 前記アルカリ金属塩がナトリウム塩であることを特徴とする請求項２に記載の油脂含有排水の嫌気性処理方法。The method according to claim 2, wherein the alkali metal salt is a sodium salt. 酸発酵工程がｐＨの異なる複数の槽からなり、第１段目の酸発酵槽のｐＨを９〜１１に維持することを特徴とする請求項１〜３のいずれか１項に記載の油脂含有排水の嫌気性処理方法。The fat and oil containing process according to any one of claims 1 to 3, wherein the acid fermentation step comprises a plurality of tanks having different pHs, and the pH of the first stage acid fermenter is maintained at 9 to 11. Anaerobic treatment of wastewater. 油脂含有排水を油脂分と分離水とに分離する油脂分離装置、前記油脂分離装置で分離した油脂分を鹸化処理する鹸化処理槽、及び前記鹸化処理された油脂鹸化物を前記分離水とともに酸発酵処理する酸発酵処理槽を有することを特徴とする油脂含有排水の嫌気性処理装置。A fat separation apparatus for separating fat and oil containing waste water into fat and oil and separation water, a saponification treatment tank for saponifying a fat and oil component separated by the fat and oil separation apparatus, and acid fermentation of the saponified oil saponified with the separation water An anaerobic treatment apparatus for fat and oil containing waste water, comprising an acid fermentation treatment tank to be treated.
JP8000699A 1999-03-24 1999-03-24 Method and apparatus for anaerobic treatment of oil-containing wastewater Expired - Fee Related JP3852896B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8000699A JP3852896B2 (en) 1999-03-24 1999-03-24 Method and apparatus for anaerobic treatment of oil-containing wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8000699A JP3852896B2 (en) 1999-03-24 1999-03-24 Method and apparatus for anaerobic treatment of oil-containing wastewater

Publications (3)

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JP2000271593A JP2000271593A (en) 2000-10-03
JP2000271593A5 true JP2000271593A5 (en) 2004-07-15
JP3852896B2 JP3852896B2 (en) 2006-12-06

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006247601A (en) * 2005-03-14 2006-09-21 Tokyo Gas Co Ltd Methanation method and apparatus
JP5275167B2 (en) * 2009-08-04 2013-08-28 住友重機械工業株式会社 Wastewater treatment equipment
JP5471748B2 (en) * 2010-04-09 2014-04-16 株式会社Ｉｈｉ Anaerobic treatment facility and anaerobic treatment method
JP5880217B2 (en) * 2012-03-30 2016-03-08 栗田工業株式会社 Treatment method for oil-containing wastewater
JP6052893B2 (en) * 2013-09-10 2016-12-27 住友重機械エンバイロメント株式会社 Anaerobic treatment facility and anaerobic treatment method
JP6442856B2 (en) * 2014-04-10 2018-12-26 栗田工業株式会社 Biological treatment method and apparatus for organic wastewater
CN104004649A (en) * 2014-05-21 2014-08-27 沈阳航空航天大学 Kitchen waste hot grease and salt removing high-temperature anaerobic dry fermentation system
JP6837750B2 (en) * 2016-03-23 2021-03-03 住友重機械エンバイロメント株式会社 Oil-containing wastewater treatment system and oil-containing wastewater treatment method
JP7284598B2 (en) * 2019-03-07 2023-05-31 住友重機械工業株式会社 Anaerobic treatment system and control method for anaerobic treatment system
CN112960879A (en) * 2021-03-12 2021-06-15 桂林理工大学 Method for slowing down inhibition of palmitic acid on methane production of anaerobic digestion waste oil

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* Cited by examiner, † Cited by third party
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DE3723718A1 (en) * 1987-07-17 1989-01-26 Henkel Kgaa DECENTRALIZED CLARIFICATION PROCESS
JPH07106358B2 (en) * 1991-01-11 1995-11-15 株式会社荏原製作所 Method and apparatus for treating organic wastewater
JPH05161900A (en) * 1991-12-12 1993-06-29 Fujita Corp Method for treating sludge containing oil and fat
JPH05245493A (en) * 1992-03-03 1993-09-24 Kurita Water Ind Ltd Treatment of waste water containing oils and fats
JPH08182998A (en) * 1994-12-28 1996-07-16 Kajima Corp Decompostion of fats and oils in oil-containing waste water
JP2000079302A (en) * 1998-09-07 2000-03-21 Nippon Kankyo Create Kk Method and apparatus for treating wastewater containing fat and oil

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