Floating bio-media with roughly 450 square meters of bacterial surface area packed into every cubic meter of reactor volume, that density is what lets our FAB sewage treatment plant treat the same load in a smaller tank, using less power, than older conventional designs.
Fluidized Aerobic Bio-Reactor technology suspends free-floating cylindrical media in the aeration tank, kept in constant motion by fine bubble diffusers. Bacteria colonize the surface of this media, and because the media offers such high surface area per unit volume, the reactor supports dense bacterial growth without needing a large tank footprint. As a FAB based sewage treatment plant manufacturer, we reach for this technology specifically where two constraints matter most, limited plot space and the need to keep ongoing power consumption down. FAB also holds up better than some biological alternatives in low-temperature conditions, and is a genuinely popular choice for upgrading existing plants that have started struggling with sludge bulking problems, rather than only for new builds.
Whether this is a new installation for a space-constrained site or an upgrade to resolve issues in an existing plant, media volume and tank staging get sized to your specific need.
Find the Right FAB Configuration for Your Site
A single fluidized bed reactor stage, well suited to smaller residential buildings, standalone facilities and rural or decentralized applications where space and power both need to stay minimal.
Staged reactors for higher organic load, suited to hotels, hospitals, institutions and industrial establishments needing consistent BOD and COD reduction at larger scale.
Media introduced into an existing aeration tank to resolve bulking problems or add capacity, a practical route to fixing an underperforming plant without a full civil rebuild.
Sewage passes through screening and equalization to remove coarse solids and buffer flow before entering biological treatment.
Settleable solids separate out before the clarified effluent moves into the FAB reactor, reducing the load the biological stage needs to handle.
Clarified effluent enters the FAB reactor, where fine bubble diffusers keep the floating media in constant motion, and bacteria colonizing the media surface oxidize organic matter in the wastewater.
Treated water overflowing from the FAB reactor moves to a secondary settling tank, separating any remaining suspended solids from the clarified effluent.
A final disinfection stage brings water to discharge-ready or reuse-ready quality for release or return into site operations.
FAB technology suits residential complexes, hotels, commercial premises, institutions and rural or decentralized applications where space and power efficiency both matter. It applies particularly well as an upgrade path, existing plants suffering from sludge bulking or needing added capacity often resolve both issues through a FAB-based retrofit rather than a full rebuild. Sites in cooler climates or with seasonal temperature swings also benefit from FAB's comparative stability at lower operating temperatures, a consideration that some biological technologies handle less gracefully.
Capacity and media volume are the primary cost drivers, higher organic load needs more media and reactor volume. Whether this is a new build or an upgrade to an existing plant changes the cost picture meaningfully, an upgrade avoids new civil construction, often making it the more economical route where the existing tank structure is sound. Lower power consumption compared to conventional activated sludge systems helps offset upfront investment over the plant's operating life, particularly relevant for sites with high electricity costs. We size cost around your actual flow, whether this is new or a retrofit, and your site's specific constraints, not a flat industrial rate.
Both technologies use media to increase bacterial surface area, but FAB media typically offers a distinct performance profile suited particularly to space-constrained and power-sensitive sites, and is especially well established as a solution for resolving sludge bulking problems in existing plants. The right choice between the two comes down to your specific site conditions, existing infrastructure, and whether this is a new build or an upgrade, something we assess during your site evaluation.
Yes, this is one of FAB's most established applications, introducing FAB media into an existing aeration tank frequently resolves bulking and settling issues that conventional activated sludge systems are prone to, without requiring a full plant rebuild.
FAB technology generally holds treatment performance better than some biological alternatives under lower temperature conditions, a relevant consideration for sites in cooler regions or with significant seasonal temperature variation.
Yes, as a FAB based sewage treatment plant manufacturer, we design FAB systems as complete new installations and as upgrade solutions for existing plants needing more capacity or better stability, sized to your specific site and current infrastructure.
FAB systems generally need less aeration and blower capacity than conventional activated sludge designs for the same organic load, translating to lower ongoing electricity cost, though the exact savings depend on your specific flow and load, which we assess during design.
Share your raw water laboratory reports and discharge limits with our senior engineering team.