Product Specification Sheet EDI ATLAS-IC™ (Internal Clarifier System) Cost Effective Lagoon Extended Aeration System for Advanced Treatment Performance • Full nitrification; less than 1.5 mg/L even in cold climates • Economical internal clarifier for solids separation • Maximum BOD and TSS reduction; less than 15 mg/L • Flocculation rake for efficient solids recovery • Simplified biomass control with RAS and WAS air lift pumps • Low food to biomass (F/M) ratio for process stability and minimum biological solids production • Fully maintainable without draining the reactor 1 2 7 5 4 3 6 1. Complete Mix Reactor 2. Floating Lateral Aeration System 7 5 4 3. FlexAir® Magnum™ High Efficency Diffusers 4. Internal Clarifier 5. Flocculation Rake 6. Sludge Collection Pipe 7. Effluent Weir 6 w w w.w a s t e w a t e r. c o m Environmental Dynamics International 010112 aeration for life™

Product Specification Sheet The EDI ATLAS-IC™ (Internal Clarifier) system uses a simplified mechanical hopper bottom clarifier to improve the performance capabilities of lagoon-based wastewater treatment systems. Conventional lagoon treatment systems that are experiencing any of the following conditions will benefit from the application of the ATLAS-IC system: • • • • • Hydraulic or organic overload Inadequate BOD or TSS reduction Poor ammonia conversion High effluent total nitrogen Reduced cold weather performance Biological processes are limited in their ability to treat wastewater by the mass...