flue gas desulfurization scrubber
FGD scrubber—wanda aka sani da flue gas desulfurization—hanya ce daya daga cikin hanyoyin da mutane ke yaki da gurbatar iska a yau. Babban aikin FGD scrubber shine cire sulfur dioxide (SO2) daga iskar da aka fitar daga bututun wutar lantarki ko wani wurin masana'antu. Wannan fasahar ta haɗa da wani hasumiya mai ɗauke da slurry na dutsen limestone; haɗin gwiwa tsakanin iskar da wannan kayan yana kawar da SO2, yana canza shi zuwa gypsum wanda za a iya amfani da shi ko kuma a zubar da shi yadda ya kamata. Ta wannan hanyar, ba wai kawai ana rage gurbataccen iskar ba har ma ana samun samfurin da za a sayar (gypsum) a ƙarshen. Ana amfani da FGD scrubbers a wurare da yawa, daga manyan tashoshin wutar lantarki na kwal da aka tara zuwa masana'antar ƙarfe da ƙarfe. Su ne muhimman ga kamfanoni wajen cika dokokin muhalli da rage fitar da carbon da ke faruwa daga samar da masana'antu.