Integrated Fixed-Film Activated Sludge Treatment
Produces effluent that meets all environmental discharge requirements both in terms of bod and total nitrogen requirements.
At Kee, our Integrated Fixed Film Activated Sludge (IFAS) systems deliver advanced wastewater treatment by combining the benefits of suspended growth activated sludge with fixed-film media. This hybrid process increases treatment capacity, stabilises performance, and enhances nutrient removal, all without the need for extensive new infrastructure.
Furthermore, we provide comprehensive servicing of your IFAS systems. Simply book online today for proactive support and peace of mind.

Attached Growth Airlift Reactor technology (AGAR)
Integrated Fixed-film Activated Sludge and Moving Bed Biofilm Reactor technologies
How IFAS Works
In an IFAS plant, biological growth occurs both in suspension and on fixed-film carriers installed within the aeration basin. This enables improved nitrification and denitrification efficiency, greater processing stability, maximum treatment performance, and reduces reliance on costly plant extensions.
Applications of IFAS Treatment
KEE’s IFAS technology is designed for:
- Municipal wastewater plants needing extra capacity.
- Industrial wastewater sites with variable or high-strength effluent.
- Commercial facilities require robust nutrient removal due to regulatory compliance demands.
What are the benefits of IFAS Systems
- Increased treatment capacity.
- Energy-efficient biological nutrient removal (BNR).
- Stable microbial balance for consistent performance.
- Flexible, modular designs tailored to site conditions.
KEE IFAS Wastewater Solutions
Our expert engineers provide complete design, installation, and operation of IFAS treatment systems. From wastewater audits and flow analysis to turnkey project delivery, we deliver customised solutions that meet both current and future discharge standards. Contact us today for more information. We’ll be glad to assist.












