OMNIFLO® Sequencing Batch Reactor (SBR) Systems

The OMNIFLO® Sequencing Batch Reactor (SBR) is a fill-and-draw, non-steady state activated sludge process in which one or more reactor basins are filled with wastewater during a discrete time period, and then operated in a batch mode.


The OMNIFLO® SBR accomplishes equalization, aeration, and clarification in a timed sequence in a single reactor basin. By varying the operating strategy aerobic, anaerobic, or anoxic conditions can be achieved to encourage the growth of desirable micro-organisms. The OMNIFLO SBR is ideally suited when nitrification, denitrification, and biological phosphorous removal are necessary. 

OMNIFLO Sequencing Batch Reactor Process Video

Siemens Video

OMNIFLO SBR Features and Benefits

  • Biological Nutrient Removal (BNR)
  • High quality effluent at widely varying flows and loadings
  • No sludge recycle system
  • Perfect quiescent settling
  • Optimum energy efficiency
  • No clarifiers
  • Small footprint
  • Flexible design
  • Retrofits of existing basins
  • Choice of aeration / mixing devices
  • Influent distribution / sludge collection manifold (ID / SC)
  • Non-electro mechanical solids excluding floating decanter
  • State-of-the-art controls
  • Retrofits available for any basin geometry
  • Experience, Reputation and Reliability 

Contact Us

Jamey Steffen, P.E.
Technical Sales Manager
Send Email
Request a Proposal

Not all products and services are available in all parts of the world. Contact us to discuss your needs.

Sign up for our FREE newsletter.
First Name:
We respect your privacy and will never sell or rent our subscriber list.

Product Documentation


Garden Ready - Article highlighting the Stowe, VT WWTP - Published in TPO Magazine, March 2014
Sequencing Batch Reactor: When Size Does Matter - Article published in WaterWorld, June 2013.
Divide and Conquer - Article highlighting Marathon, Florida OMNIPAC® SBR project published in TPO Magazine, March 2013
  Regional Utilities' Expanded Wastewater Plants Produce High-Quality Effluent for Reuse - Article reprinted from Florida Water Resouce Journal, August 2008.

Featured News & Case Studies 

Evoqua to Provide On Demand Wastewater Treatment Management for Global Soft Drink Producer's Plant in Philippines
Enhanced Nutrient Removal Achieved with OMNIFLO SBR
Everybody Wins at Ho-Chunk Indian Casino
Installation of OMNIFLO SBR at Tank Terminal
Installation of Cost-Saving OMNIFLO SBR System at Rahr Malting
Municipality Replaces Existing Wastewater Treatment Process With OMNIFLO SBR System 
Water Reclamation Facility Installs OMNIFLO SBR to Meet Discharge Requirements

Related Products

VARI-CANT® Jet Aeration Systems
Decanters - Floating, Fixed, Supernatant or Effluent
OMNIPAC® Field-Erected SBR Package Plants