JPS57132600A - Treatment of sludge - Google Patents
Treatment of sludgeInfo
- Publication number
- JPS57132600A JPS57132600A JP56018499A JP1849981A JPS57132600A JP S57132600 A JPS57132600 A JP S57132600A JP 56018499 A JP56018499 A JP 56018499A JP 1849981 A JP1849981 A JP 1849981A JP S57132600 A JPS57132600 A JP S57132600A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- surfactant
- flocculated
- high polymer
- dehydratability
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To improve the dehydratability of hard-to-dehydrate sludge such as biological sludge and flocculated and settled sludge by mixing a high polymer flocculating agent and a surfactant to the sludge and subjecting this to a pressure dehydration treatment.
CONSTITUTION: Sludge 7 to be dehydrated is supplied through a sludge supply pipe 3 into an admixing tank 1; at the same time, a high polymer flocculating agent through a pipe 4 and a surfactant 9 are injected therein and these are thoroughly mixed with an agitator 2, by which the sludge is flocculated. The flocculated sludge is supplied through a flocculated sludge discharge pipe 6 into a dehydrator. For example, a cationic high polymer agent is added at 0.66%/SS to 100ml digested sludge (3% sludge concn.) of sewage sludge and a surfactant at 0.05%/SS. As a result, the amt. of gravity filtrate is 63ml upon lapse of one minute, which is the same even after the addition of the surfactant, but the flocculated sludge after the filtration is 90ml when pressurized (0.2kg/cm2G), which is indicative of easier dehydration as compared to 70ml before the addition of the surfactant, thus the dehydratability is improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018499A JPS57132600A (en) | 1981-02-10 | 1981-02-10 | Treatment of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018499A JPS57132600A (en) | 1981-02-10 | 1981-02-10 | Treatment of sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57132600A true JPS57132600A (en) | 1982-08-16 |
Family
ID=11973309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56018499A Pending JPS57132600A (en) | 1981-02-10 | 1981-02-10 | Treatment of sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57132600A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204100A (en) * | 1985-03-08 | 1986-09-10 | Ichikawa Keori Kk | Dehydrating method for sludge |
| JPS6211600A (en) * | 1985-03-08 | 1987-01-20 | Ichikawa Keori Kk | Method for dehydrating sludge |
| CN105016601A (en) * | 2015-07-03 | 2015-11-04 | 天津霍普环保科技有限公司 | Electro-osmotic dewatering technology for biological sludge |
-
1981
- 1981-02-10 JP JP56018499A patent/JPS57132600A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204100A (en) * | 1985-03-08 | 1986-09-10 | Ichikawa Keori Kk | Dehydrating method for sludge |
| JPS6211600A (en) * | 1985-03-08 | 1987-01-20 | Ichikawa Keori Kk | Method for dehydrating sludge |
| CN105016601A (en) * | 2015-07-03 | 2015-11-04 | 天津霍普环保科技有限公司 | Electro-osmotic dewatering technology for biological sludge |
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