SPEL Osorb

Osorb is an absorbent nano-engineered glass useful for capturing petroleum hydrocarbons and other organics, allowing biological degradation to occur in the soil in stormwater systems.

Specialised, reductive Osorb materials have been modified to both capture and break down a wide spectrum of volatile organic compounds (VOCs) and other contaminants, including:

  • Polyaromatic hydrocarbons (PAHs)
  • Endocrine disruptors
  • Pharmaceuticals
  • Nutrients, such as nitrates and phosphates
  • Pesticides, such as atrazine
  • Some metals, including copper, zinc, and lead ions

Features & Benefits

Iron-Osorb removes contaminants such as oil, gas, pharmaceuticals, pesticides, and nutrients from stormwater. It also improves plant growth by breaking down contaminants in soil and protects healthy soil microbes from toxicity overloading.

In the side-by-side stormwater control study above, an Osorb-enhanced swale (bioretention system) that contains soil with 1% Iron-Osorb was placed next to a control swale with identical runoff conditions. Both swales reduce stormwater volume by >95%. The Osorb swale showed no signs of nutrient leaching in comparison to the evident nutrients in the control swale’s effluent.

  1. Osorb removes contaminants such as:
    • Oil
    • Gas
    • Pharmaceuticals
    • Pesticides
    • Nutrients from Stormwater
  2. Improves plant growth.
  3. Protects healthy soil microbes from toxicity overloading.
SPEL Osorb Stormwater Solutions

Key Advantages

  1. Integrates into existing stormwater systems
  2. Aesthetically remediates many persistent contaminants
  3. Has a high absorption capacity
  4. Does not affect natural soil composition
  5. Recharges groundwater with a clean, safe source
SPEL Osorb Stormwater Drain


  • Industrial water
  • Stormwater Runoff
  • Groundwater
  • Any other contaminated water source

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