JPS5719100A - Disposal of sludge from night soil digester - Google Patents
Disposal of sludge from night soil digesterInfo
- Publication number
- JPS5719100A JPS5719100A JP9350480A JP9350480A JPS5719100A JP S5719100 A JPS5719100 A JP S5719100A JP 9350480 A JP9350480 A JP 9350480A JP 9350480 A JP9350480 A JP 9350480A JP S5719100 A JPS5719100 A JP S5719100A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- effluent
- night soil
- concentration
- digester
- 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
- 239000010802 sludge Substances 0.000 title abstract 9
- 239000002689 soil Substances 0.000 title abstract 6
- 238000004062 sedimentation Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910001431 copper ion Inorganic materials 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 239000008214 highly purified water Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- -1 iron ion Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To rationally dispose digester sludge and night soil at once, by mixing night soil or the digestion effluent of night soil with a concentration effluent and concentrated sludge obtained from the digester sludge in a proper step.
CONSTITUTION: Sludge 1 from a night soil digester is separated into concentrated sludge 3 and a concentration effluent 4a in a concentration step 2. The concentrated sludge 3 is mixed and reacted with a metal ion-dissociating substance 11, capable of dissociating an iron ion, aluminium ion or copper ion in an aqueous solution, or an oxidizing agent 12, and separated into dewatered cake 14 and an effluent 15 by a mechanical dehydrator 13. The concentration-separated effluent 4a is mixed with night soil 4b, treated in a biological reaction vessel 5, and carried into a sedimentation pool 6. Thereafter, the dewatering effluent 15 is added to the concentration-separated water, and the mixed water is drained as highly purified water 18 through an aeration step 19 and a sedimentation pool 17. Sludge formed in each step is collected in a sludge reservoir 9 and treated again.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350480A JPS5719100A (en) | 1980-07-09 | 1980-07-09 | Disposal of sludge from night soil digester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350480A JPS5719100A (en) | 1980-07-09 | 1980-07-09 | Disposal of sludge from night soil digester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5719100A true JPS5719100A (en) | 1982-02-01 |
Family
ID=14084172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9350480A Pending JPS5719100A (en) | 1980-07-09 | 1980-07-09 | Disposal of sludge from night soil digester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5719100A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193798A (en) * | 1982-05-10 | 1983-11-11 | Ebara Infilco Co Ltd | Treatment of night soil and purification tank sludge |
| JPS596986A (en) * | 1982-07-05 | 1984-01-14 | Ebara Infilco Co Ltd | Treatment of night soil-type filthy water |
| CN104529106A (en) * | 2015-01-01 | 2015-04-22 | 北京工业大学 | Method for promoting anaerobic digestion of excess sludge through copper sulfate to produce methane |
| CN104529108A (en) * | 2015-01-07 | 2015-04-22 | 南京工业大学 | Method for removing persistent organic pollutants in sludge by coupling anaerobic digestion-Fenton reaction |
| CN106746407A (en) * | 2016-12-28 | 2017-05-31 | 山东益源环保科技有限公司 | A kind of technique for improving excess sludge dewatering |
| CN108892347A (en) * | 2018-07-12 | 2018-11-27 | 同济大学 | A method of improving aerobic digested sludge dewatering |
-
1980
- 1980-07-09 JP JP9350480A patent/JPS5719100A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193798A (en) * | 1982-05-10 | 1983-11-11 | Ebara Infilco Co Ltd | Treatment of night soil and purification tank sludge |
| JPS596986A (en) * | 1982-07-05 | 1984-01-14 | Ebara Infilco Co Ltd | Treatment of night soil-type filthy water |
| CN104529106A (en) * | 2015-01-01 | 2015-04-22 | 北京工业大学 | Method for promoting anaerobic digestion of excess sludge through copper sulfate to produce methane |
| CN104529106B (en) * | 2015-01-01 | 2016-08-17 | 北京工业大学 | Copper sulfate promotes the methanogenic method of excess sludge anaerobic digestion |
| CN104529108A (en) * | 2015-01-07 | 2015-04-22 | 南京工业大学 | Method for removing persistent organic pollutants in sludge by coupling anaerobic digestion-Fenton reaction |
| CN106746407A (en) * | 2016-12-28 | 2017-05-31 | 山东益源环保科技有限公司 | A kind of technique for improving excess sludge dewatering |
| CN106746407B (en) * | 2016-12-28 | 2020-08-21 | 山东益源环保科技有限公司 | Process for improving dehydration performance of excess sludge |
| CN108892347A (en) * | 2018-07-12 | 2018-11-27 | 同济大学 | A method of improving aerobic digested sludge dewatering |
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