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Designed to remove excess suspended solids (SS) and biological oxygen demand (BOD) from a wastewater treatment plant.

The sand filter meets stringent discharge consent standards above what is normally expected from a biological process or an industry standard clarifier.  

The sand filter will remove typically a minimum of 60% SS and 40% BOD dependent on particle size distribution. The waste backwash water is then returned to the plant for co-settlement and re-treatment.


  • Commercial sewage  
  • Industrial wastewater
  • Water utilities and municipal wastewater
Sand filter 800px

Product highlights

  • Backwash removes solids trapped in sand filter media

  • No need to inhibit inflow to filter during backwash cycle

  • Minimal serviceable parts reduce planned and reactive maintenance risks 

  • Timed backwash sequence combines air scour and backwash

  • Backwash pump for sludge discharge to ensure minimal manual intervention required

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  • Above and below ground installations 

  • Influent can flow by gravity or pumped into the filter unit 

  • Single unit can cope with population equivalents up to 600PE 

  • For higher populations the sand filters can be linked in parallel  

  • Influent can flow by gravity or pumped into the filter unit

  • Retrofit for an existing system failing discharge consent conditions, for both SS and BOD 

  • Manufactured in glass reinforced plastic (GRP)  

Case studies and contract wins

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