Biodesulfurization is a biological process that removes sulfur compounds from fossil fuels, such as coal and oil. This method uses specific microorganisms, like certain bacteria, to convert harmful sulfur compounds into less harmful substances. This process helps reduce sulfur emissions when fuels are burned, contributing to cleaner air and less environmental pollution. The main advantage of biodesulfurization is its efficiency and eco-friendliness compared to traditional chemical methods. By utilizing natural biological processes, it minimizes the use of harsh chemicals and reduces waste. This technology is important for meeting environmental regulations and promoting sustainable energy practices in the energy sector.