SE8104683L - PROCEDURE FOR CONDITIONING OF Sewage sludge - Google Patents
PROCEDURE FOR CONDITIONING OF Sewage sludgeInfo
- Publication number
- SE8104683L SE8104683L SE8104683A SE8104683A SE8104683L SE 8104683 L SE8104683 L SE 8104683L SE 8104683 A SE8104683 A SE 8104683A SE 8104683 A SE8104683 A SE 8104683A SE 8104683 L SE8104683 L SE 8104683L
- Authority
- SE
- Sweden
- Prior art keywords
- sludge
- colloidal
- loading
- treatment
- colloidal loading
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the treatment of the sludges from domestic and municipal waste waters, the waste waters (effluents) of pulp and paper combines, of meat and milk production, of the food industry etc. The process is measuring the colloidal loading of the treated sludge, treatment thereof with a metal salt in an amount which gives a colloidal loading in the range from -3 to +3 mg.eq/l, heating the sludge to a temperature of 65 to 85 DEG C, repeated measurement of the colloidal loading and subsequent sludge treatment with an organic flocculant. In this case, at a colloidal loading of sludge, after heating thereof, of -3 to -0.1 mg.eq/l, a cationic flocculent is used, at a colloidal loading of -0.1 to +0.1 mg.eq/l a nonionic flocculent is used and at a colloidal loading of +0.1 to +3 mg.eq/l, an anionic flocculent is used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802988372A SU994444A1 (en) | 1980-10-15 | 1980-10-15 | Method for conditioning effluent precipitates |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8104683L true SE8104683L (en) | 1982-04-16 |
SE448720B SE448720B (en) | 1987-03-16 |
Family
ID=20920166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8104683A SE448720B (en) | 1980-10-15 | 1981-08-04 | PROCEDURE FOR CONDITIONING OF Sewage sludge |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5949079B2 (en) |
DE (1) | DE3129136C2 (en) |
FR (1) | FR2491909B1 (en) |
SE (1) | SE448720B (en) |
SU (1) | SU994444A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59154200A (en) * | 1983-02-24 | 1984-09-03 | Ichikawa Keori Kk | Treatment of sludge |
AT387562B (en) * | 1983-12-06 | 1989-02-10 | Walter Rieger | METHOD FOR PROCESSING WATER-BASED ORGANIC RESIDUE MEASURES |
JPS62172886U (en) * | 1986-04-23 | 1987-11-02 | ||
JPS6369884U (en) * | 1986-10-25 | 1988-05-11 | ||
DE4335957A1 (en) * | 1993-10-21 | 1995-04-27 | Petkus Wutha Getreide Und Saat | Process and apparatus for dewatering sewage sludges, in particular industrial or comparable sludges |
PL2094613T3 (en) * | 2006-11-14 | 2012-01-31 | Lhoist Rech Et Developpement Sa | Method for processing sludge |
JP5132415B2 (en) | 2007-08-31 | 2013-01-30 | 株式会社小松製作所 | COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE HAVING THE SAME |
JP5349835B2 (en) | 2007-08-31 | 2013-11-20 | 株式会社小松製作所 | COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE HAVING THE SAME |
JP5374068B2 (en) | 2007-08-31 | 2013-12-25 | 株式会社小松製作所 | COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE HAVING THE SAME |
JP5349834B2 (en) | 2007-08-31 | 2013-11-20 | 株式会社小松製作所 | COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE HAVING THE SAME |
RU2764433C1 (en) * | 2021-02-03 | 2022-01-17 | Людмила Николаевна Чумакова | Method for removing water from high-moisture agricultural and food industry waste using flocculants |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011817B (en) * | 1938-03-07 | 1957-07-04 | Roebel & Fiedler Chem Fab K G | Process for the clarification of waste water |
DE1174709B (en) * | 1959-05-08 | 1964-07-23 | Dr Hermann Jung | Process for the chemical precipitation of sewage sludge as a pretreatment for their dewatering |
FR1283508A (en) * | 1961-03-08 | 1962-02-02 | Gen Mills Inc | Sludge flocculation process |
DE1254592B (en) * | 1961-09-05 | 1967-11-23 | Dow Chemical Co | Process to improve the filterability of aqueous organic slimes |
DE1300507B (en) * | 1963-03-22 | 1969-08-07 | Roehm & Haas Gmbh | Process for increasing the solids content of slurries |
US3354028A (en) * | 1963-12-30 | 1967-11-21 | Garden State Paper Company Inc | Clarifying waste effluents from re-inking processes by reversing the effluent ph |
US3388060A (en) * | 1964-07-29 | 1968-06-11 | Parsons Brinckerhoff Quade & D | Process and composition for purification of water supplies and aqueous wastes |
DE1642850A1 (en) * | 1967-05-16 | 1971-03-11 | Metallgesellschaft Ag | Process for dewatering organic sludge by centrifugation |
CH535185A (en) * | 1969-06-02 | 1973-03-31 | Hefermehl Sa H P | Process for the continuous purification of wastewater containing suspended solids and a system for carrying out the process |
FR2146533A5 (en) * | 1971-07-16 | 1973-03-02 | Int Waterpure Corp | Liquid purification system with zeta-potenti - additives |
FI200074A (en) * | 1973-08-02 | 1975-02-13 | Hercules Inc | |
JPS5244752B2 (en) * | 1974-04-08 | 1977-11-10 | ||
GB1521672A (en) * | 1976-12-14 | 1978-08-16 | Champion Int Corp | Treating activated sludge to facilitate dewatering thereo |
DE2920434A1 (en) * | 1979-05-19 | 1980-11-20 | Basf Ag | METHOD FOR IMPROVING THE DRAINAGE BEHAVIOR OF SLUDGE |
-
1980
- 1980-10-15 SU SU802988372A patent/SU994444A1/en active
-
1981
- 1981-07-23 DE DE3129136A patent/DE3129136C2/en not_active Expired
- 1981-08-04 SE SE8104683A patent/SE448720B/en not_active IP Right Cessation
- 1981-09-03 JP JP56137880A patent/JPS5949079B2/en not_active Expired
- 1981-10-12 FR FR8119169A patent/FR2491909B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5949079B2 (en) | 1984-11-30 |
SU994444A1 (en) | 1983-02-07 |
SE448720B (en) | 1987-03-16 |
DE3129136C2 (en) | 1986-04-17 |
JPS5775200A (en) | 1982-05-11 |
FR2491909B1 (en) | 1987-03-06 |
FR2491909A1 (en) | 1982-04-16 |
DE3129136A1 (en) | 1982-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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