Sulfur Dioxide Removal in Power Plants Unfeasible 

Removing sulfur dioxide from exhaust gases produced in thermal power plants is not an environment-friendly practice that is why none of these stations in Iran are equipped with special devices that can be installed on smokestacks, the head of Environment Protection Department at the Thermal Power Plants Holding Company said.
“Not only does the process produces gypsum plaster waste that is hazardous for the ecosystem, but it also raises water consumption in the facility by at least 50%,” Sanaz Jafarzadeh was also quoted as saying by Barq News.
“Sulfur removal process from liquefied fuels like mazut and diesel should be done in refineries and not in power plant,” she added, noting that the quality of mazut delivered to thermal power stations is very low, so when it is burnt instead of natural gas, it adds to the air pollution menacing large cities.