Why Sequence Bacteria That Reduce Sulfur Compounds?
Combustion of sulfur-containing fuels, such as coal, oil, and natural gas, contributes significantly to global environmental problems, such as air pollution and acid rain. In addition, sulfur dioxide also supports reactions that create ozone depletion in the stratosphere. So, removal of sulfur compounds from energy carriers is essential for a clean and healthy environment. A sustainable process to remove these sulfur compounds is the production of elemental sulfur (which can be used as a fertilizer or fungicide) from H2S-containing gas streams by the use of sulfur bacteria under highly alkaline (pH 10) and oxygen-limited conditions. However, the sulfate and thiosulfate byproducts of this process need to be removed from the waste stream prior to disposal. This is done by sulfate- and thiosulfate reducing bacteria in an anaerobic reactor with hydrogen as electron donor. In the complete sulfur-removal process, we use bacteria that were isolated from soda lakes, and so naturally adapted to
Combustion of sulfur-containing fuels, such as coal, oil, and natural gas, contributes significantly to global environmental problems, such as air pollution and acid rain. In addition, sulfur dioxide also supports reactions that create ozone depletion in the stratosphere. So, removal of sulfur compounds from energy carriers is essential for a clean and healthy environment. A sustainable process to remove these sulfur compounds is the production of elemental sulfur (which can be used as a fertilizer or fungicide) from H2S-containing gas streams by the use of sulfur bacteria under highly alkaline (pH 10) and oxygen-limited conditions. However, the sulfate and thiosulfate byproducts of this process need to be removed from the waste stream prior to disposal. This is done by sulfate- and thiosulfate reducing bacteria in an anaerobic reactor with hydrogen as electron donor. In the complete sulfur-removal process, we use bacteria that were isolated from soda lakes, and so naturally adapted to
