Biological Scrubbers
Power of Microbes: Clean Biogas with Biological Scrubbers
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Overview
Brief Intro CRA’s Biological Scrubber Systems use naturally occurring microbes to remove hydrogen sulfide (H₂S) and other sulfur compounds from biogas. In a controlled packed-bed environment, sulfur-oxidizing bacteria convert H₂S into sulfate or recoverable sulfur—without chemicals. These systems provide sustainable, low-maintenance, and efficient desulfurization, making them ideal for a wide range of applications and requirements.
Key Benefits
Efficient two- or four-stage designs for low to high inlet concentrations.
Eliminates the need for caustic soda or other reagents, reducing both cost and risk
Natural bacteria continuously oxidize sulfur compounds without external inputs
Corrosion-resistant construction, non-clogging packing, and simple operation deliver uptime above 98%
No hazardous waste, no chemical storage, and no secondary pollution.
The CRA Edge
Decades of gas treatment experience with 100+ chemical scrubbers installed around the world for diverse applications.
From modeling to fabrication, CRA delivers turnkey systems with fans, pumps, dosing, and automation.
CRA provides a suite of tailored, complementary products designed to meet all your biogas needs.
Engineered to ensure clean gas quality, odor control, and protection of downstream equipment.
