A Comparative Study on the Efficiency of Hydrogen Sulfide Scrubbing Removal in Swine Waste Biogas

Biogas has the potential to help reduce global climate change since the raw materials used in its production, such as agricultural waste, manure, municipal waste, plant material, sewage, green waste, or food waste, are correctly processed to avoid pollution. If fully exploited, biogas production from current organic wastes may supply 20% of the world's current natural gas needs. One challenge encountered in the utilization of biogas is the occurrence of hydrogen sulfide and water vapor which decreases its calorific value. In lieu of this concern, a comparative study for efficiency removal was conducted for scrubber units between non-rusted vs. rusted steel wool for H2S removal while silica beads vs. sponge as absorbents in water vapor reduction. It uses action research through evaluation in gathering data. The result of the study reveals that using rusted steel wool with an efficiency of 105.47% is more efficient compared to non-rusted steel wool with an efficiency equal to 55% in hydrogen sulfide removal. Likewise, silica beads with 41.67% efficiency are more functional compared to sponge with 0% efficiency in which water vapor cannot be absorbed from biogas