Decanter
The main function is decanting apparatus for the withdrawal of supernatant from a reactor without drawing floating solids or scum during decanting mode while preventing the accumulation of suspended solids in the decanter receptacle during non-decanting It is particularly useful in biological wastewater treatment such as a Sequencing Batch Reactor (SBR), an aerobic digester, or the like. In a typical SBR, a reactor or basin is operated in a sequential manner which includes a
The decanter is well designed to avoid problems resulting from contact with wastewater, especially on the rotating joints, It’s made of 100% stainless steel grades, free of wear and tears, and well lubricated for a long period
- Local switch box or control box
- Electrical winch
- Lifting rope, stainless steel
- Airventvalve
- Airvent pipe
- Conductive sensor
- Inlet pipe
- Sludge baffe / barrier for floatings9 Connection pipe
- to Swivel joint / rotating link
- Concrete wall
- Catching rope, stainless steel
- Discharge of cleared waste water
A Maximum water level
B Minimum water level
C Sludge level
1-Starting position:
Equipped with a submerged swivel joint the Decanter is moved up and down by an electrical winch according to the water level.
2 – Downward movement:
Touching the water body surface potential floating sludge is pushed aside by a sludge baffle before entering the inlet openings
3- Decanting phase:
Any downward movement will be stopped reliably before reaching the activated sludge blanket level After reaching the preferred water level Decanter moves back to its preset parking position
The decanting system is suitable for :
Sequencing Batch Reactors
Aerobic Digester Thickening
Storm Water Retention Tanks
Equalization Basins
Water Holding Basins
Basins requiring a wide range of travel
Cold Weather Installations
Advantages:
No-electro-mechanical equipment in the basin
Maintenance free
Excludes floatable
Constructed of high-quality, corrosive resistant
Materials
Years of reliable operating experience
Simple safe operation
Manual override
Consistent performance