Cloth Media Filter

The AquaPrime cloth media filtration system is designed as an economical and efficient solution for the treatment of primary wastewater. This system utilizes a disk configuration and the exclusive OptiFiber PF-14® pile cloth filtration media to effectively filter high solids waste streams without the use of chemicals. This system is ideal for primary wastewater treatment due to its proven removal efficiencies and high quality effluent, even under varying influent conditions.

How It Works

AquaPrime® Overview


AquaPrime® Filtration Mode

Filtration Mode

  • Influent wastewater/wet weather flow enters the filter by gravity
  • Stationary cloth media disks are completely submerged
  • Solids deposit on the outside of the cloth media forming a mat as filtrate flows through the media
  • Tank liquid level rises as headloss builds due to the collection of solids
  • Filtrate is collected in the hollow center tube and discharged over an effluent weir
  • Heavier solids settle to the specifically designed hoppered tank bottom

Backwash Mode

  • Solids are backwashed at a predetermined liquid level or time
  • Backwash shoes directly contact the cloth media and solids are removed by vacuum pressure using a backwash pump
  • Disks rotate slowly and two disks are backwashed at a time (unless a single disk is utilized)
  • Filtration is not interrupted
  • Backwash water is directed to waste handling facilities (thickening, digester, etc.)
AquaPrime® Solids Wasting Mode

Solids Wasting Mode

  • Heavier solids in the collection hopper are removed on an intermittent basis
  • Backwash/Solids Pump provides suction to the solids collection manifold for wasting of settled solids
  • Solids are pumped back to the waste handling facilities (thickening, digesters, etc.)
AquaPrime® Floatable Wasting Mode

Floatable Wasting Mode

  • Floatable scum is allowed to collect on the water surface
  • After a preset number of backwashes, the water level is allowed to rise above the preset high level
  • As the water level increases, floating scum is removed by flowing over the scum removal weir
  • Scum wasting water is directed to the plant’s waste handling facility

Features & Specifications

  • Vertically oriented cloth media disks reduce required footprint
  • Each disk is lightweight, with removable segments for ease of maintenance
  • Effective backwash system that fluidizes cloth fibers to release stored solids
  • Specifically designed floatable and solids removal zones
  • Available in several configurations
  • Fully automatic PLC control with color touchscreen HMI


  • Reduced energy costs in the secondary process due to a reduction in organic loading
  • Simple start-up with unattended operation for remote locations
  • More solids for increased gas production in anaerobic digesters for primary applications

Plant Photos


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