A novel and cost-effective hydrogen sulfide removal technology using tire derived rubber particles
Ames Water Pollution Control FacilityAmes, Iowa
Hydrogen sulfide (H2S) produced during the anaerobic digestion process at wastewater treatment
plants is corrosive, toxic, and noxious.. Tire derived rubber particles (TDRP™) and other rubber
material (ORM™) are recycled waste rubber products distributed by Envirotech Systems, Inc
(Lawton, IA). They were previously found to be effective at removing H2S from biogas. A
scrubber system utilizing TDRP™ and ORM™ was tested at the Ames Water Pollution Control
Facility (WPCF) to determine operational conditions that would maximize the amount of H2S
removed from biogas in order to allow for systematic sizing of biogas scrubbers. Results showed
that longer contact times, compaction, and higher inlet H2S concentrations improved the amount
of H2S that was adsorbed, with an average of 1-3 mg H2S per gram of media removed. The effect
of temperature was not found to be significant. Additionally, in excess of 90% siloxane reduction
was observed from the biogas.
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Posted: May 20th, 2011 | Filed under: 50k-100k, Stormwater, Waste Water Treatment, Water Treatment | Tags: Biogas Purification, Cost Effective Approach, Environmental Impact, Improved H2S Adsorption Capacity, Improved Siloxane Reduction, Optimal Operating Conditions | No Comments »
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