An nuna muhimmancin hana gurɓataccen muhalli a matsayin matsala ta duniya. Tare da ci gaban masana'antu na zamani da haɓaka matakin rayuwa, gurɓataccen yanayi ya zama batun damuwa.

Sulfur dioxide ne daya daga cikin muhimman gurɓataccen yanayi, gurɓataccen yanayi yana da haɗari sosai, don haka a tsakiyar shekarun sabantin, binciken fasahar desulfurization na hayaki da yawa sun lissafa a matsayin magance gurɓataccen yanayi, an gina wasu masana'antu masu amfani da na'urorin sarrafawa, a lokaci guda, wata babbar matsalar gurɓataccen yanayi, watau gurɓataccen NOX na nitrogen oxide, mutane kuma sun fara bincike da ci gaban magance fasahar. NOX a karkashin hasken rana zai haifar da photochemical halayen, samar da photochemical hayaki, saboda haka haifar da mummunan gurɓataccen yanayi. An ƙara ba da hankali ga gurɓataccen yanayi na NOX tun daga shekarun 1970, kuma an gano cewa lalacewar lafiyar mutum, ruwan sama mai yawa na nitric acid, hayaki mai haske, rage ozone da wasu matsaloli duk suna da alaƙa da ƙananan matakan NOX, kuma haɗari ya fi yadda mutane ke tunani da farko.

Matsalar fitar da NOX da Japan sun yi la'akari da shi sosai. Japan ta riga ta kafa tsananin ka'idodin NOX a duniya. Ƙara matakan fasaha don kawar da kayan aikin NOX a kan tukuna da ke amfani da kwal da man fetur, Japan ta kasance, har yanzu tana neman samun wannan fasahar.

Gas mai hayaki na wutar lantarki yana ƙunshe da yawan nitrogen oxides, kamar ba a sarrafa shi ba, waɗannan gas masu fitarwa a cikin yanayi za su haifar da gurɓataccen ruwan sama mai acid, don ƙarin rage fitar da nitrogen oxides, a yi maganin denitration na hayaki bayan ƙonawa. Wutar lantarki tashar hayaki gas denitration kayan aiki ne na'urar da ake amfani da su sarrafa nitrogen oxides.

Smoke gas denitration, yana nufin rage da aka samar da NOX zuwa N2, don haka cire NOX a cikin hayaki gas, bisa ga tsarin gudanarwa za a iya raba shi zuwa danshi hanyar denitration da bushe hanyar denitration. Wasu masu bincike kuma sun haɓaka hanyoyin amfani da ƙwayoyin cuta don sarrafa NOX.

Saboda NOx a cikin hayaki gas fitarwa daga ƙonawa tsarin, fiye da 90% ne NO, kuma NO wuya narkewa a ruwa, saboda haka, da danshi hanyar kula da NOx ba za a iya amfani da sauki wanki hanyar. Ka'idar smoke gas denitration shi ne oxidizing NO zuwa NO2, samar da NO2 sake sha ruwa ko alkaline bayani, don haka cimma denitration. Hanyar sha oxidation ta O3 ta oxidize NO zuwa NO2, sannan sha ta ruwa. Hanyar samar da ruwa na HNO3 yana buƙatar sarrafawa mai haɗuwa, kuma O3 yana buƙatar samar da ƙarfin lantarki mai ƙarfi, da farashin zuba jari da kuɗin aiki. ClO2 oxidation rage hanyar ClO2 oxidizes NO zuwa NO2, sa'an nan kuma rage NO2 zuwa N2 tare da Na2SO3 ruwa mafita. Ana iya amfani da wannan hanyar tare da dabarun desulfurization dabarun da ke amfani da NaOH a matsayin desulfurizer, da kuma cewa Na2SO3 mai amsawa na desulfurizer zai iya zama mai rage NO2. A ClO2 hanyar dehydration iya zuwa 95%, kuma za a iya desulfurization lokaci guda, amma ClO2 da NaOH farashin ne mafi girma, da kuma aiki farashin karuwa.

Guangxi hayaki gas denitration kayan aiki Lanzhou hayaki gas denitration kayan aiki