Modular FAST®
Pre-engineered Biological Wastewater Treatment System




Modular FAST provides end-users a proven solution to potentially unsightly, noisy and odorous problems associated with some wastewater treatment systems. Using the patented FAST process (an acronym for Fixed Activated Sludge Treatment), Modular FAST is a fixed-film, aerated system utilizing the principles of attached and suspended growth with the ability to nitrify/denitrify.
Able to be installed below or above grade, Modular FAST offers high-quality treated wastewater and preserves the aesthetics of the surrounding environment. The attached growth facilitated by the FAST media ensures a high level of
continuous treatment even with wide variations in flows. The result is clean and odorless effluent.

Modular FAST Advantages:

Flexible Application

Designed for replacing existing septic or new on-site systems in municipal, private development and industrial process wastewater applications for superior BOD/TSS removal and nitrification/denitrification.

High Level of Bacterial Concentration

"Fixed Activated Sludge Treatment" maintains a high level of bacteria in the aeration zone, which provides stable
operation, breaks down biodegradable constituents in the wastewater, and prevents bulking conditions and settling problems.
Smaller required tank sizes for the same application is a cost-benefit passed onto the user.

Long Sludge Age

With high bacterial concentration, Modular FAST boasts a significantly longer sludge age than conventional plants. A long sludge age achieves nitrification and denitrification
much easier, operates more effectively in cold climates, and less sludge is produced.

High Quality Effluent

High quality effluent from Modular FAST extends leach field life (because of the low solids carry-over) and can minimize the leach field land area required. Its clear effluent also makes the system ideal for pretreatment to aeration ponds, lagoons and constructed wetlands. No clarifier is required for subsurface discharge applications.

High Resistance to Hydraulic and Organic Shock Loads

Because the bacteria are attached to the FAST media in the aeration zone, the system prevents washout of bacteria, enabling Modular FAST to endure peak or spike flow conditions.

Low Energy Requirements

Modular FAST systems contain only one moving part that requires electricity: the air blower.

Superior PreTreatment

Whether the application requires pretreatment of sanitary or process wastewater for discharge to a city sewer, leach field,
constructed wetlands or aeration pond, Modular FAST can do the job better than conventional pretreatment systems. Pictured at right is an installation, start-up and completion of a Modular FAST (at a hotel/restaurant) specifically designed for subsurface discharge into a leach field. This Modular FAST significantly extends the life of the hotel's leach field and meets stringent permit requirements unlike the previously used septic tanks.
The operation of Modular FAST is very minimal, consisting primarily of air scouring of the media and occasional
sludge removal (1 to 4 times a year depending on the application).
Flow capacities for this kind of application are virtually unlimited. For industrial applications, pilot testing and leasing programs are available for customers with unique needs.