In fixed growth systems, microorganisms are attached to a surface that is exposed to the water. We supply numerous systems of this type, including rotating biological contactors, trickling filters, and fixed film bioreactors.

Suspended growth refers to systems where the microorganisms are freely suspended in the water. We offer a full range of suspended growth systems, including activated sludge, sequencing batch reactors, oxidation ditches, and more.

Some of our Anaerobic Biological Products and Systems are:

• Biological Wastewater Treatment Plants
• Combination Heater and Heat Exchanger
• Duo-Deck™ Floating Digester Cover
• DuoTherm® Sludge Digestion Process
• Dystor® Membrane Gas Holder System
• Pearth™ Gas Mixing System
• SmartBNR™ Process Control System
• Spiral Guided Digester Gas Holder
• Vertical Guided Digester Gas Holder
• Lancy Anaerobic Anaerobic Bio-tower/UASB/EGSB
• BIOPAQ® IC Reactor
• THIOPAQ® Process
• BIOPAQ® UASB Reactor
• PACT® System
• AGAR® (Attached Growth Airlift Reactor) Biological Treatment Process 

For more information on anaerobic biological treatment, contact the Information Desk, Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time:

800.525.0658 or 724.772.1402