IT1104690B - Solid bowl decanting centrifuge - with radial feed chamber for minimum retention time of flocculant and suspension - Google Patents
Solid bowl decanting centrifuge - with radial feed chamber for minimum retention time of flocculant and suspensionInfo
- Publication number
- IT1104690B IT1104690B IT4955278A IT4955278A IT1104690B IT 1104690 B IT1104690 B IT 1104690B IT 4955278 A IT4955278 A IT 4955278A IT 4955278 A IT4955278 A IT 4955278A IT 1104690 B IT1104690 B IT 1104690B
- Authority
- IT
- Italy
- Prior art keywords
- flocculant
- suspension
- retention time
- solid bowl
- feed chamber
- Prior art date
Links
- 239000007787 solid Substances 0.000 title abstract 4
- 230000014759 maintenance of location Effects 0.000 title abstract 3
- 239000000725 suspension Substances 0.000 title abstract 3
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229920000867 polyelectrolyte Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000010801 sewage sludge Substances 0.000 abstract 1
Landscapes
- Treatment Of Sludge (AREA)
- Centrifugal Separators (AREA)
Abstract
A horizontal solid bowl centrifuge for clarifying and decanting, e.g. for dewatering sewage sludge with an admixture of polymer flocculants, has a central feed system for the suspension and for a flocculant, and a worm conveyor which rotates at a slightly different speed from the solid bowl. A radial feed chamber which joins the feed system to the bowl/conveyor annulus is designed to provide the shortest possible path and to reduce the retention time in it to a minimum. For cationic polyelectrolytes with a high shear resistance, a min. amount of flocculant is required for the conditioning of a liquid/solid suspension if the retention time is as near to zero as possible. A reduction of 20% has been recorded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4955278A IT1104690B (en) | 1978-05-25 | 1978-05-25 | Solid bowl decanting centrifuge - with radial feed chamber for minimum retention time of flocculant and suspension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4955278A IT1104690B (en) | 1978-05-25 | 1978-05-25 | Solid bowl decanting centrifuge - with radial feed chamber for minimum retention time of flocculant and suspension |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7849552A0 IT7849552A0 (en) | 1978-05-25 |
IT1104690B true IT1104690B (en) | 1985-10-28 |
Family
ID=11271004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4955278A IT1104690B (en) | 1978-05-25 | 1978-05-25 | Solid bowl decanting centrifuge - with radial feed chamber for minimum retention time of flocculant and suspension |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1104690B (en) |
-
1978
- 1978-05-25 IT IT4955278A patent/IT1104690B/en active
Also Published As
Publication number | Publication date |
---|---|
IT7849552A0 (en) | 1978-05-25 |
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