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

 
 
 
 

Concrete Type

  • Rectangular concrete structures

  • For large volume flow

  • Above ground or underground design

Above Ground BBF

Underground BBF

 
 

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

 
 
  1. Distribution Box

  2. Influent Pipe

  3. Fixed Media

  4. Floating Media

  5. Strainer

  6. Treated Water for Backwashing