Submerged Aerated Filters ( SAF ) are a well proven technology for wastewater treatment. The F.L.I. Brightwater HSAF^® unique SAF design provides a versatile static bed process, using the BMax^® floating media, which can be configured for biological wastewater treatment in aerated mode or as a suspended solids filter in unaerated mode. A version enabling the operator to switch between these treatment modes is available. All variants utilise periodic media bed cleaning cycles. These units offer the following system advantages:

• High quality effluent
  For example the HSAF^® can achieve <1mg/l ammonia in tertiary aerated mode or <10mg/l suspended solids in filtration mode.
  
  
• Small footprint
  The HSAF^® uses Bmax^® media which offers a high specific surface area (700m²/m³). This combined with an efficient oxygen transfer system, results in a compact and robust wastewater treatment process.
  
  
• No sludge buildup
  Automated cleaning cycle periodically removes excess sludge whilst independently maintaining sludge age.
  
  
• Low power usage
  The high efficiency of the process air system ensures a very low air and power requirement.
  
  
• User Friendly
  Proven, simple & robust process requires virtually no maintenance during normal operation.
  
  
• Flexible delivery
  Available as mobile packaged or bespoke SAF type wastewater treatment systems. Package plant can be purchased, hired or is available for demonstration units. The standard product is available in a range of four sizes, the largest of which can treat up to 1000 PE in a single unit. Bespoke designs for on-site construction are produced for larger schemes, as an alternative to multiple packaged SAF units.

For further information on F.L.I. Brightwater and our full range of waste water treatment products and processes, go to: www.brightwaterfli.com