JP2003019497A5 - - Google Patents
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- Publication number
- JP2003019497A5 JP2003019497A5 JP2001206591A JP2001206591A JP2003019497A5 JP 2003019497 A5 JP2003019497 A5 JP 2003019497A5 JP 2001206591 A JP2001206591 A JP 2001206591A JP 2001206591 A JP2001206591 A JP 2001206591A JP 2003019497 A5 JP2003019497 A5 JP 2003019497A5
- Authority
- JP
- Japan
- Prior art keywords
- ejector
- treatment method
- throat portion
- sludge
- sludge treatment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 9
- 239000010802 sludge Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010800 human waste Substances 0.000 description 1
Description
【特許請求の範囲】
【請求項１】 処理すべき汚泥に対し、エジェクタを用いて、オゾン濃度が１２０〜２５０ｇ／ｍ3 Ｎであるオゾンガスを注入することを特徴とする汚泥処理方法。
【請求項２】 前記エジェクタとして、スロート部における液流速２０ｍ／ｓ以下が可能な大径スロート部をもつ低速型エジェクタを使用する請求項１に記載の汚泥処理方法。
【請求項３】 処理すべきし尿汚泥に対し、エジェクタを用いてオゾンガスを注入することを特徴とする汚泥処理方法。
【請求項４】 前記オゾンガスのオゾン濃度が１２０〜２５０ｇ／ｍ3 Ｎである請求項３に記載の汚泥処理方法。
【請求項５】 前記エジェクタとして、スロート部における液流速２０ｍ／ｓ以下が可能な大径スロート部をもつ低速型エジェクタを使用する請求項３に記載の汚泥処理方法。
【請求項６】 オゾン処理する流動性被処理物へのオゾンガスの注入に使用されるエジェクタであって、スロート部の内径が、前記被処理物の流量をＡ（Ｌ／分）として、１０（０．０１Ａ）1/2 〜１０（０．０１５Ａ）1/2 ｍｍであるエジェクタ。
【請求項７】 前記流動性被処理物が汚泥である請求項６に記載のエジェクタ。
【請求項８】 前記オゾンガスのオゾン濃度が１２０〜２５０ｇ／ｍ3 Ｎである請求項６に記載のエジェクタ。
[Claims]
1. A sludge treatment method comprising injecting ozone gas having an ozone concentration of 120 to 250 g / m 3 N into sludge to be treated using an ejector.
2. The sludge treatment method according to claim 1, wherein a low-speed type ejector having a large-diameter throat portion capable of a liquid flow rate of 20 m / s or less in the throat portion is used as the ejector .
3. A sludge treatment method comprising injecting ozone gas into human waste sludge to be treated using an ejector.
4. The sludge treatment method according to claim 3, wherein the ozone gas has an ozone concentration of 120 to 250 g / m 3 N.
5. The sludge treatment method according to claim 3, wherein a low-speed type ejector having a large-diameter throat portion capable of a liquid flow rate of 20 m / s or less at the throat portion is used as the ejector .
6. An ejector used for injecting ozone gas into a fluid processing object to be ozone-treated, wherein an inner diameter of a throat portion is 10 (L / min) when a flow rate of the processing object is A (L / min). An ejector having a size of 0.01 A) 1/2 to 10 (0.015 A) 1/2 mm.
7. The ejector according to claim 6, wherein the fluid processing object is sludge.
8. The ejector according to claim 6, wherein the ozone gas has an ozone concentration of 120 to 250 g / m 3 N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001206591A JP4205876B2 (en) | 2001-07-06 | 2001-07-06 | Sludge treatment method and ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001206591A JP4205876B2 (en) | 2001-07-06 | 2001-07-06 | Sludge treatment method and ejector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003019497A JP2003019497A (en) | 2003-01-21 |
| JP2003019497A5 true JP2003019497A5 (en) | 2006-03-16 |
| JP4205876B2 JP4205876B2 (en) | 2009-01-07 |
Family
ID=19042699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001206591A Expired - Lifetime JP4205876B2 (en) | 2001-07-06 | 2001-07-06 | Sludge treatment method and ejector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4205876B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4666228B2 (en) * | 2006-07-11 | 2011-04-06 | 株式会社安川電機 | Sludge treatment equipment |
| JP6594591B1 (en) * | 2019-01-31 | 2019-10-23 | 三菱電機株式会社 | Sewage treatment apparatus and sewage treatment method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07195098A (en) * | 1991-07-23 | 1995-08-01 | Kaihara Kk | Method and apparatus for dewatering activated sludge |
| JP3591023B2 (en) * | 1995-01-19 | 2004-11-17 | 栗田工業株式会社 | Biological sludge ozonation equipment |
| JP3383498B2 (en) * | 1995-11-30 | 2003-03-04 | 株式会社荏原製作所 | Organic wastewater treatment method |
| JPH09206780A (en) * | 1996-02-01 | 1997-08-12 | Kurita Water Ind Ltd | Aerobic biological treatment equipment |
| JP3867326B2 (en) * | 1996-10-30 | 2007-01-10 | 富士電機システムズ株式会社 | Ozone treatment method for activated sludge process water |
| JP2000033393A (en) * | 1998-07-17 | 2000-02-02 | Showa Engineering Co Ltd | Sewage treatment method |
| JP2000117279A (en) * | 1998-10-14 | 2000-04-25 | Fuji Electric Co Ltd | Water treatment method |
| JP3763444B2 (en) * | 1999-01-19 | 2006-04-05 | 株式会社荏原製作所 | Organic wastewater treatment method |
| JP3750923B2 (en) * | 2000-08-09 | 2006-03-01 | 株式会社荏原製作所 | Method for adjusting activated sludge, method and apparatus for treating organic wastewater using the same |
| JP2002361239A (en) * | 2000-09-27 | 2002-12-17 | Tokyo Flow Meter Kenkyusho:Kk | Processing equipment for processing objects containing microorganisms |
| JP2002233895A (en) * | 2001-02-09 | 2002-08-20 | Paratekku Kk | Deodorization method for swage sludge |
-
2001
- 2001-07-06 JP JP2001206591A patent/JP4205876B2/en not_active Expired - Lifetime
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