JPS57105295A - Aerobic fermentation of sewage sludge or the like - Google Patents
Aerobic fermentation of sewage sludge or the likeInfo
- Publication number
- JPS57105295A JPS57105295A JP55182262A JP18226280A JPS57105295A JP S57105295 A JPS57105295 A JP S57105295A JP 55182262 A JP55182262 A JP 55182262A JP 18226280 A JP18226280 A JP 18226280A JP S57105295 A JPS57105295 A JP S57105295A
- Authority
- JP
- Japan
- Prior art keywords
- aerobic fermentation
- organic matters
- sewage sludge
- sludge
- unstable organic
- 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
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
PURPOSE: To accelerate fermentation, to facilitate aerobic fermentation and to reuse fermented material as compost, by adding a very small amount of a nitrogen component to crude material, which contains only a small amount of unstable organic matters, generated by digestion of sewage sludge.
CONSTITUTION: Sewage sludge is digested as disposal of sludge. When the sewage sludge, in which the content of unstable organic matters or an ignition loss is low, is aerobically fermented, the water-retaining rate of the resultant dewatered cake is high. In this regard, additives or circulating matters, e.g. cortex or sawdust, are added to the sludge, however the content of the unstable organic matters is further lowered. In addition, the dewatered cake may be solar-dried or hot air-dried to lower its water-retaining rate, however its ignition loss is reduced. Thus, a component mainly comprising ammonium sulfate or urea is added as a nitrogen source at the weight ratio of 0.1W1.5% to crude material, to be fermented, in which the rate of unstable organic matters is 30mgO2/g or the ignition loss is 30% or lower. In addition, the aerobic fermentation is accelerated by letting air, which is fed into a fermenting vat for aerobic fermentation, contain ammonia gas.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55182262A JPS57105295A (en) | 1980-12-22 | 1980-12-22 | Aerobic fermentation of sewage sludge or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55182262A JPS57105295A (en) | 1980-12-22 | 1980-12-22 | Aerobic fermentation of sewage sludge or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57105295A true JPS57105295A (en) | 1982-06-30 |
Family
ID=16115170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55182262A Pending JPS57105295A (en) | 1980-12-22 | 1980-12-22 | Aerobic fermentation of sewage sludge or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57105295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100313457B1 (en) * | 1999-06-07 | 2001-11-09 | 김상채 | A manufacturing Method of barnyard manure using sawdust |
-
1980
- 1980-12-22 JP JP55182262A patent/JPS57105295A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100313457B1 (en) * | 1999-06-07 | 2001-11-09 | 김상채 | A manufacturing Method of barnyard manure using sawdust |
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