Reduce Costs and Increase Efficiency When Converting Waste to Energy

Biogas Desulphurization with Sulphasorb Fe™ Adsorbent Media

Biogas is a gaseous fuel produced by the fermentation of organic matter, most often in the form of bovine waste. The process produces H2S (carbon dioxide, methane) and other odorous contaminants that produce greenhouse gases.

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biogas facility
Orange PureAir SulphasorbFE (13).1
cows in field

PureAir Sulphasorb Fe™ Adsorbent Media

Sulphasorb Fe™ is an iron oxide-based scavenger, specialized for use in Biogas applications. Sulphasorb Fe™ breaks new ground in the removal of H2S due to having a removal capacity that is minimum 25% by weight.

Unlike competing Iron Oxide or Iron Hydroxide scavengers, there is not an elemental sulfur build up on the outside – allowing the media to continue adsorbing thus extending its life. Sulphasorb Fe™ has been successfully used in applications up to 100,000 ppm.

Sulphasorb Fe™ adsorbent media provides double the desulfurization capacity as iron sponge technology, creating a more cost-effective solution. Ensuring over 99% removal of H2S, Sulphasorb Fe’s price makes it an even more attractive solution for removing biogas.

PureAir Advantages

biogas pureair advantages

Benefits Features
  • Long lasting media life
  • Cost-effective and consistent performance
  • Effective in humid air
  • Doesn’t require oxygen; oxygen extends media life
Low Maintenance
  • Non-bricking formulation reduces maintenance costs
  • Quick media changeout minimizes downtime and labor costs
  • Unused and used media is environmentally friendly
  • Particle Size: 5mm
  • Density: 801 kg/m3 (50lbs/ft3)
  • Typical Moisture Content: 5%
  • Abrasion Loss: 5% maximum
  • Removal Capacity: 25% by weight minimum
Multiple Applications
  • Wastewater treatment biogas
  • Landfill biogas
  • Dairy biogas


Biogas California case study brochure
FACILITY TYPE: Dairy Biogas Plant

LOCATION: Central California

MEDIA USED: Sulphasorb Fe™ adsorbent media

PROBLEM: The plant needed an odor control solution to combat the unpleasant odors and greenhouse gases created during the biogas process.

SOLUTION: Our media alone provided twice the odor removal capacity and allowed the facility to reduce its equipment size by half. Originally, the facility was producing H2S levels of 7,000 ppm. After our media was installed, H2S levels dropped to below 1 ppm.

Download Dairy Biogas Plant Case Study