Upgrading a wastewater treatment plant does not always require new tanks, new civil structures, or large capital expenditure. In many cases, capacity, performance, and stability can be significantly improved within the existing footprint.
This is where BioFloat IFAS becomes relevant.
What is BioFloat IFAS?
BioFloat IFAS is a floating, cage-based Integrated Fixed Film Activated Sludge (IFAS) system designed to increase biological treatment capacity inside existing aeration tanks.
Instead of constructing new reactors, BioFloat introduces high-surface-area attached growth media within engineered floating cages positioned above the aeration grid. The system enables hybrid treatment — combining suspended growth (MLSS) and attached growth (biofilm) — within the same tank.
How It Enhances Plant Capacity
By introducing attached growth surface area:
-
Effective biomass concentration increases without increasing MLSS.
-
F/M ratio reduces without increasing tank volume.
-
Nitrification improves due to stable biofilm.
-
Shock load tolerance improves.
-
Sludge age (SRT) effectively increases without clarifier overload.
The result: higher treatment capacity within the same aeration basin.
No New Civil Construction
BioFloat IFAS leverages:
-
Existing aeration tanks
-
Existing blowers (subject to validation)
-
Existing piping infrastructure
Installation is modular and can be done basin-by-basin without emptying the tanks.
This avoids:
-
New concrete structures
-
Land acquisition
-
Major downtime
-
Long approval cycles
Energy Efficiency
Because biomass is retained on media:
-
Oxygen transfer becomes more stable.
-
DO can often be operated at optimized levels.
-
Nitrification efficiency improves without proportionally increasing air demand.
When properly engineered, the system enhances process efficiency without linear increase in energy consumption.
Key Technical Advantages
-
High protected surface area per m³ of media
-
Controlled cage geometry for uniform flow distribution
-
Media retained above diffusers to prevent clogging
-
Compatible with SBR, MBBR-retrofit, and conventional ASP systems
-
Suitable for BOD and ammonia-limited plants
Sustainability Impact
Expanding capacity using BioFloat IFAS instead of building new civil structures:
-
Reduces embodied carbon associated with concrete and steel
-
Extends life of existing infrastructure
-
Supports circular and resource-efficient upgrades
-
Minimizes construction-related emissions
It is a practical pathway toward sustainable plant intensification.
Value Proposition:
Increase treatment capacity. Improve process stability. Avoid major CAPEX. Extend asset life.
