JPS55162400A - Sludge dehydrating method by methanol - Google Patents
Sludge dehydrating method by methanolInfo
- Publication number
- JPS55162400A JPS55162400A JP7191179A JP7191179A JPS55162400A JP S55162400 A JPS55162400 A JP S55162400A JP 7191179 A JP7191179 A JP 7191179A JP 7191179 A JP7191179 A JP 7191179A JP S55162400 A JPS55162400 A JP S55162400A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- methanol
- added
- dehydrated
- amount
- 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.)
- Pending
Links
Abstract
PURPOSE: To facilitate the dehydrating operation as well as reduce an amount of an auxiliary fuel for incinerating through a method wherein a specified amount of methanol is added to sludge and, thereafter, said sludge is dehydrated to increase a dehydrating speed of said sludge.
CONSTITUTION: 10W40wt%, based on the sludge, of methanol is added to the sludge and, thereafter, the dehydrating operation is carried out. For example, 10W 40% of methanol is added to the sludge and after well blending, said sludge is dehydrated by a filter press or a centrifugal precipitation method. This removed liquid contains methanol corresponding to an added amount thereof, but, because boiling point difference with water is high, said methanol can be easily recovered by a conventional distillation or a vacuum distillation method. The methanol added prior to the dehydration treatment is partially transferred to the dehydrated sludge to be used as an auxiliary fuel for incinerating and a portion thereof is recovered from said removed liquid to be used by circulating and, moreover, other portion thereof is added to an activated sludge tank to be used for denitrification.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7191179A JPS55162400A (en) | 1979-06-07 | 1979-06-07 | Sludge dehydrating method by methanol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7191179A JPS55162400A (en) | 1979-06-07 | 1979-06-07 | Sludge dehydrating method by methanol |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55162400A true JPS55162400A (en) | 1980-12-17 |
Family
ID=13474186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7191179A Pending JPS55162400A (en) | 1979-06-07 | 1979-06-07 | Sludge dehydrating method by methanol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55162400A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011200811A (en) * | 2010-03-26 | 2011-10-13 | Nishimatsu Constr Co Ltd | System and method for reducing volume of sludge |
WO2014157263A1 (en) * | 2013-03-29 | 2014-10-02 | 株式会社クボタ | Organic sludge dehydration method and dehydration equipment |
JP2014193442A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method and installation for treatment of organic sludge |
JP2014193438A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method of dehydrating organic sludge |
JP2014193439A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Dehydration system for organic sludge and method of recovering organic solvent in dehydration system |
JP2014193440A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method of dehydrating organic sludge |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50125971A (en) * | 1974-03-25 | 1975-10-03 |
-
1979
- 1979-06-07 JP JP7191179A patent/JPS55162400A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50125971A (en) * | 1974-03-25 | 1975-10-03 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011200811A (en) * | 2010-03-26 | 2011-10-13 | Nishimatsu Constr Co Ltd | System and method for reducing volume of sludge |
WO2014157263A1 (en) * | 2013-03-29 | 2014-10-02 | 株式会社クボタ | Organic sludge dehydration method and dehydration equipment |
JP2014193442A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method and installation for treatment of organic sludge |
JP2014193438A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method of dehydrating organic sludge |
JP2014193439A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Dehydration system for organic sludge and method of recovering organic solvent in dehydration system |
JP2014193440A (en) * | 2013-03-29 | 2014-10-09 | Kubota Corp | Method of dehydrating organic sludge |
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