Technology

BBF Structure

Physical & Biological Treatments Using a Single Up-flow Reactor

• Wastewater travels down from the influent water way located on top of the BBF reactor, and it enters the reactor at the bottom of the structure

• The hydraulic head difference creates an up-flow condition inside of the reactor and water first travels through the fixed media layer (anoxic zone) which is located at the bottom of the system

• Floating media layer is located in the middle of the reactor and is retained by strainer block

• Depending on the process air diffusers location relative to the floating media, oxic, anoxic, or oxic/anoxic conditions can be designed

• The effluent waterway conveys treated water from the system and the remaining water on top of floating media is used as backwash water source without requiring pump

Above Ground

1. Influent Waterway

2. Influent Pipe

3. Fixed Media

4. Floating Media

5. Strainer & Block

6. Treated Water for Backwashing

Underground

7. Effluent Waterway

8. Backwashing Channel

9. Main Air Pipe

10. Process Air Pipe

11. Backwashing Air Pipe

12. Maintenance Walkway

Vessel Type

• Cylindrical vessels (dual or quad unit)

• For small volume flow

• Outdoor or indoor installation