JPS57132598A - Methane fermentation tank - Google Patents
Methane fermentation tankInfo
- Publication number
- JPS57132598A JPS57132598A JP56017136A JP1713681A JPS57132598A JP S57132598 A JPS57132598 A JP S57132598A JP 56017136 A JP56017136 A JP 56017136A JP 1713681 A JP1713681 A JP 1713681A JP S57132598 A JPS57132598 A JP S57132598A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- sludge
- liquid
- fermentation
- gate
- 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
- 238000000855 fermentation Methods 0.000 title abstract 6
- 230000004151 fermentation Effects 0.000 title abstract 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 4
- 239000010802 sludge Substances 0.000 abstract 8
- 239000007788 liquid Substances 0.000 abstract 7
- 238000000746 purification Methods 0.000 abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To simplify the treatment of excess sludge produced in a purification tank by providing a fermentation tank and a purification tank, and providing a sludge passage for feeding the excess sludge in the purification tank to a fermentation tank as well as a gate for opening and closing the sludge passage.
CONSTITUTION: When the methane fermentation in a fermentation chamber 2 progresses, the amt. of the gas in a gas accumulation part 2a increases, and the liquid level in the fermentation chamber lowers. At the same time, the liquid level in an upper liquid chamber 3 rises correspondingly, and part of the desorbed liquid in the upper liquid chamber is fed through a lead-in port 4a into an aeration chamber 4. In the chamber 4, the aerobic decomposition of the desorbed liquid is effected and sludge 18 settles partly on the bottom part thereof. The liquid after the treatment is transferred into a settling chamber 5. A sludge passage 14 provided with a freely openable and closable gate 15 communicating with a material feed port 6 is provided to the bottom part of the chamber 5. At the point of the time when the excess sludge 18 accumulates, the gate 15 is opened and the sludge is removed therethrough and is transferred into the port 6.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56017136A JPS57132598A (en) | 1981-02-07 | 1981-02-07 | Methane fermentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56017136A JPS57132598A (en) | 1981-02-07 | 1981-02-07 | Methane fermentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57132598A true JPS57132598A (en) | 1982-08-16 |
Family
ID=11935599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56017136A Pending JPS57132598A (en) | 1981-02-07 | 1981-02-07 | Methane fermentation tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57132598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015111A (en) * | 1988-03-14 | 1991-05-14 | Pentel Of America, Ltd. | Eraser dispenser and writing instrument equipped with eraser dispenser |
| US5062727A (en) * | 1987-10-09 | 1991-11-05 | Kotobuki & Co., Ltd. | Writing tool |
| US5662425A (en) * | 1993-04-12 | 1997-09-02 | Kotobuki & Co., Ltd. | Stick-shaped material propelling container |
-
1981
- 1981-02-07 JP JP56017136A patent/JPS57132598A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370471A (en) * | 1978-10-07 | 1994-12-06 | Kotobuki & Co., Ltd. | Writing tool, with eraser dispenser |
| US5062727A (en) * | 1987-10-09 | 1991-11-05 | Kotobuki & Co., Ltd. | Writing tool |
| US5207522A (en) * | 1987-10-09 | 1993-05-04 | Kotobuki & Co., Ltd. | Knock type mechanical pencil with retractable eraser |
| US5236270A (en) * | 1987-10-09 | 1993-08-17 | Kotobuki & Co. Ltd. | Writing tool for advancing lead with eraser dispenser |
| US5683191A (en) * | 1987-10-09 | 1997-11-04 | Kotobuki & Co., Ltd. | Writing tool |
| US5015111A (en) * | 1988-03-14 | 1991-05-14 | Pentel Of America, Ltd. | Eraser dispenser and writing instrument equipped with eraser dispenser |
| US5662425A (en) * | 1993-04-12 | 1997-09-02 | Kotobuki & Co., Ltd. | Stick-shaped material propelling container |
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