Act4energy participated in the seminar “New air pollution control technologies” organized by DIMTECH SA at Athens November 11th 2022. The seminar aimed to present a new biotrickling filter technology for hydrogen sulfide oxidation (Bio-X). The co-founder Vasileios Diamantis provided a welcome and introductory speech. The Bio-X technology can achieve maximum process efficiency at high sulfide loading rates. The system is designed based on sustainability principles both considering resource and energy consumption.