Abstract
Operational testing of the THIOPAQ® facility that removes H2S from landfill gas was performed for 746 days. The average H2S removal efficiency was 99.4%, and the input quantities of air, NaOH, and nutrients per sulfur load were 13.1 m3/ton, 1.5 m3/ton, and 28.7 L/ton, respectively. The purity of the bio-sulfur produced from the facility was 94.8%, with 3.3% impurities, except for moisture. X-ray photoelectron spectroscopy showed that the compositional contents of amino acids and free amino acids of the bio-sulfur surface were 5,308 and 728 mg/kg, respectively. The mean particle size was 3.41 μm, which was much smaller than that of chemical sulfur. Based on these results, a high H2S removal rate of more than 97% is feasible, and high value-added bio-sulfur, which is used as a fungicide because of its hydrophilic characteristics and small size, can be obtained at this facility.
| Translated title of the contribution | Application of the Microbial Process for Hydrogen Sulfide Removal and Bio-Sulfur Production from Landfill Gas |
|---|---|
| Original language | Korean |
| Pages (from-to) | 68-76 |
| Number of pages | 9 |
| Journal | 신재생에너지 |
| Volume | 16 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2020 |