bushewar ruwa na gishiri na hayaki
Duk da haka, fasahar rage sulfur dioxide ta hanyar amfani da dutsen limestone mai danshi wata fasahar muhalli ce wacce zata iya cire sulfur dioxide daga hayakin da aka fitar daga kona mai da kuma hana sakin sa cikin iska gaba daya. Wannan tsari yana bukatar kula da hayakin da aka samar daga tashoshin wutar lantarki da sauran wuraren masana'antu. Wannan yana canza wadannan hayakin zuwa carbonates wanda daga bisani ake wanke su daga tsarin tare da karancin bukatar wasu sinadarai. Ta amfani da tarin fuka-fukai, wanda iska ke kadawa, wurin ba ya da awaki: wani karamin kaso na korewar sa ya rage amma ba a gaji da shi ba. A cikin SDA mai dan danshi, an fesa dutsen limestone kai tsaye cikin hayakin daga bututun da aka tsara don wannan manufa. A cikin SDA mai danshi, an shigar da slurry na dutsen limestone cikin hayakin bushe daga hadawa a kasan bututun mai shakar, wanda daga bisani ake fesa sama da fuka-fukai a tsawon sa. Wannan fasahar tana dogara ne akan hasumiyar shakar, inda hayakin daga kona ya hadu da slurry na dutsen limestone. Sulfur dioxide daga bisani ana shakar ta da dutsen limestone kuma yana samar da calcium sulfite. Zuwa kasan sa a ƙasa wannan slurry yana zubar da ruwa yana barin gypsum, wanda za a iya amfani da shi a gini a matsayin samfurin masana'antu ba tare da wani karin sarrafawa ko kula da shi ba. Mahimmancin rage sulfur dioxide ta hanyar dutsen limestone mai danshi yana kan tashoshin wutar lantarki da ake kona kwal, inda yake zama hanya mai amfani da arha don cika ka'idojin muhalli da rage tasirin gurbatar iska.