radial suction-type clarifier – SV clarifier
![SV clarifier](https://www.suezwaterhandbook.com/var/degremont/storage/images/technologies-degremont-r/traitement-des-eaux-usees/decantation-secondaire/clarificateur-a-succion-radiale-clarificateur-sv/86925-11-eng-GB/radial-suction-type-clarifier-SV-clarifier.jpg)
The SV clarifier is a flat bottom structure. The sludge settles at the bottom of the device and is suctioned (by level difference) by vertical tubes located along a radius to a trough from which they are sent via a siphon to the recirculation pit.
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![Radial suction-type clarifier – SV Clarifier](https://www.suezwaterhandbook.com/var/degremont/storage/images/technologies-degremont-r/traitement-des-eaux-usees/decantation-secondaire/clarificateur-a-succion-radiale-clarificateur-sv/dossier-media/clarificateur-a-succion-radiale-clarificateur-sv/86944-4-eng-GB/Radial-suction-type-clarifier-SV-Clarifier2_articlewidth.jpg)
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key figure
- The SV clarifier is standardized for diameters from 25 to 52 m
- More economical clarifier due to its circular shape and flat bottom design
- Shorter sludge contact time: peripheral sludge suction prevents excessive contact time
- Limited maintenance on suction tubes
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