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OVIVO | NUTRIENT REMOVAL
CARROUSEL® SYSTEMS
MAXIMUM TREATMENT – MINIMUM EFFORT
HOW IT CAN MEET YOUR NEEDS:• Meets the Most Stringent Effluent Requirements• Simple to Operate and Easy to Maintain• Eliminate Chemical Dependency• Reduce Energy Use• Proven Technology – 700+ U.S. installations
2014 Current Ditch Technology
The AlternatIR™ System:
• Dual Impeller Aerators• More Turndown (85-90%)• Better Mixing & Velocity• Protects process (no over-aeration)
• Automatically Controlled Internal Recycle Gate• Optimized Denitrification• Bio-P without dedicated Anaerobic Selectors (TP<1.0 mg/l)
• Auto Open/Close cycling has been proven to create anaerobic conditions enough for PAO’s to thrive
• Oculus Control System• D.O. Control• Energy Optimization• Gate Control• BNR Optimization• Mixer Monitoring• Can be MCC or stand-alone panel
InfluentRAS
To Clarifier
IR Gate Control Makes a Difference
• Before Gate Control• TN = ~9-11 mg/l
• After Gate Control• TN < ~4-5 mg/l
• Improves Nitrogen AND Phosphorus Removal
ORP fluctuates -275 to -90.
ORP Stable at Set Point For Optimal BNR
2014 Current Ditch Technology
2014 Current Ditch TechnologyDeep Tank Carrousel
• Smaller Footprint• Draft Tube Aerator for vertical
mixing• Lower Impeller and channel
mixer for floor velocities
23-25’ SWD
2014 Current Ditch Technology
Membrane Digestion The Carrousel MD:
• Deep TanK• AlternatIR System (BNR)• Common Wall Construction• Clarifier• Membrane Digestion
• No Polymer• Smaller Footprint• Up to 5% Solids• Class B Sludge
Reaeration StepAEROSTRIP Diffusers
BNR Selector(AlternatIR System)
Deep Tank Carrousel System
Pro-Set Clarifier
2014 Current Ditch Technology
The Carrousel-MBR:
• High MLSS• Small Footprint• Simple Aeration• Robust BNR Process• Common Wall Construction• No need for Clarifier or Tertiary Filtration
ASTRUMAER PRO