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Anaerobic Digestion: Hydrogen Sulfide Biofiltration from Biogas Using Cow-Manure Compost

Author
Scott, Norman
Abstract
Integrated farm energy systems utilize an anaerobic digester (AD) to
provide a waste treatment solution, improved nutrient recovery and energy
generation potential in the form of biogas. This biogas consists primarily of
methane and carbon dioxide plus, smaller amounts of trace gases,
particularly hydrogen sulfide (H2S). H2S, although present in small quantities
(500 – 6000 ppm), is a major problem for internal combustion engines,
microturbines and fuel cells. There are numerous chemical, physical and
biological methods utilized for removal of H2S from a gas stream. Many of
these methods are expensive, labor intensive and generate a waste stream
that poses environmental disposal concerns and risks. Research conducted
under NYSERDA Agreement #7250 (collaboration between NYSEG and
Cornell) has studied the utilization of cow-manure compost for removal of
H2S from AD biogas using small-scale reactors.
Date Issued
2004-01Subject
Anaerobic Digestion; Hydrogen Sulfide; Manure Management
Type
presentation