StormwateRx Introduces the Retenu Stormwater Roughing Filtration System

Retenu is designed for heavy industrial sites where sediment is prevalent in stormwater runoff.

StormwateRx LLC,  Portland, Ore., has introduced the Retenu Stormwater Roughing Filtration System. Retenu is designed for use at industrial sites producing significant amounts of sediment in stormwater runoff. The system is fully automated, chemical-free and can be used as a standalone filter to remove heavy sediment loads or as a pretreatment to enhance the performance of StormwateRx’s Aquip Enhanced Stormwater Filtration System or Purus Polishing System.

Calvin Nolling, president and CEO of StormwaterRX, says, “We developed Retenu in response to customer requests for a backwashing stormwater filtration system designed especially for higher sediment-loading and heavy use industrial sites.”
Retenu’s chemical-free treatment process uses filtered stormwater for backwashing, flushing out accumulated dirt and concentrating the solids. This process reduces the concentration of solids in the effluent, removing metals and other particulate pollutants.

Retenu is available in several standard sizes and can be integrated with other StormwateRx treatment best management practices.

According to the company, key benefits of Retenu include:

  • The system is built for use in heavy industrial applications
  • Retenu is fully automated, resulting in less maintenance and ultimately lower power costs
  • The system uses filtered stormwater for backwashing, and no external water source is required
  • Concentrates pollutants, reducing the disposal cost in most cases
  • Compact footprint available with treatment rates from 20 to 500 gpm
  • It is available either as a stand-alone system or in a BMP treatment train
  • Enables more effective performance of downstream treatment systems

More information can be found at www.stormwaterx.com.