Intelligent Submerged Aerated Filters (I-SAF)

Traditional Submerged Aerated Filters (SAF), have a proven track record for providing high quality biologically treated effluent. However they are sometimes prone to be power hungry.

In our quest for higher efficiency and less energy costs, we offers our Intelligent SAF (I-SAF) unit which incorporates energy saving devices; resulting in power savings of over 50% (compared to traditional SAF units) whilst maintaining the same high levels of treatment.

Designed for equivalent populations from 300 – 1000 and beyond, our wastewater treatment system utilises dissolved oxygen control and variable speed side channel blowers to control the air flow together and with PLC monitoring, I-SAF ticks all the boxes when it comes to low carbon / low energy systems.

The I-SAF is available as a complete packaged treatment system – for rental and for purchase.  We can also retrofit our I-SAF technology to some existing SAF systems.

The I-SAF range of biological packaged waste water treatment plants are designed to provide years of efficient low maintenance service.

Each I-SAF system consists of a chamber or multiple chambers arranged in series. Each chamber is filled with rigid structured media. Underneath the media are fine bubble membrane diffusers. The effluent passes through the media which provides a surface for the biomass that will degrade the biological content.  Air is passed through the air diffusers to provide oxygen to the biomass and to cleans the media to release excess biomass thereby eliminating the need for backwashing of the plant.

The air supply for the I-SAF is provided by means of low maintenance side channel blowers. The air scoured biomass passes into a humus tank for return to the primary settlement tank

Integrated Package Plant

We can also supply I-SAF and SAF plants with an integrated Lamella plate Primary and Humus tank to create a complete package treatment plant, both the SAF and I-SAF benefit from providing a small footprint solution for the treatment of wastewater requiring reduction in Biochemical Oxygen Demand  (BOD)

Applications include:

  • Stand-alone biological treatment
  • Food waste applications
  • Municipal Waste Water Treatment
  • BOD Reduction
  • Emergency rental
  • Supplement or replace an existing system
  • Installation as part of a complete sewage treatment works