rigar flue gas desulfurization
Kamar yadda aka sani ga kowa da kowa, ƙarancin ƙarancin iska yana da mahimmanci don cire sulfur dioxide (SO2) daga gas ɗin da aka samar daga tashoshin wutar lantarki. Babban aikin WFGD shine rage gurɓatar iska ta hanyar kama SO2 kafin a samar da shi cikin yanayi. Abubuwan fasaha na WFGD sun haɗa da scrubber wanda ke yayyafa slurry na dutse mai laushi a cikin gas din, inda ya amsa tare da SO2 don samar da gypsum wanda za'a iya tattara shi kuma amfani dashi a aikace-aikace daban-daban. Wannan hanyar desulfurization tana da inganci sosai kuma tana iya cire har zuwa 98% na SO2 daga gas ɗin hayaƙi. WFGD ana amfani dashi sosai, musamman a cikin tsire-tsire da ke ƙone kwal inda dokokin muhalli da rage ruwan sama na acid zasu iya amfana daga aikace-aikacensa.