Hatsari da Mulkin Dioxin

1.Tushen dioxin

Dioxins shine sunan gabaɗaya na aji na chlorinated polynuclear aromatic mahadi, waɗanda aka gajarta a matsayin PCDD/Fs. Yawanci sun haɗa da polychlorinated dibenzo-p-dioxins (pCDDs), polychlorinated dibenzofurans (PCDFs), da dai sauransu. Tushen da tsarin samar da dioxin suna da rikitarwa kuma ana samar da su ta hanyar ci gaba da kona gauraye datti. Lokacin da aka ƙone robobi, takarda, itace da sauran kayan aiki, za su fashe kuma su oxidize a ƙarƙashin yanayin zafi mai yawa, ta haka ne ke samar da dioxins. Abubuwan da ke tasiri sun haɗa da abubuwan sharar gida, yanayin iska, zafin konewa, da dai sauransu. Bincike ya nuna cewa mafi kyawun yanayin zafin jiki don tsara dioxin shine 500-800 ° C, wanda aka samar saboda rashin cikar konewar datti. Bugu da ƙari, a ƙarƙashin ƙananan yanayin zafi, a ƙarƙashin catalysis na karafa na miƙa mulki, dioxin precursors da ƙananan ƙwayoyin ƙwayoyin cuta za a iya haɗa su ta hanyar ƙananan zafin jiki na ganganci. Duk da haka, a ƙarƙashin isassun yanayi na iskar oxygen, zafin konewa ya kai 800-1100 ° C zai iya guje wa samuwar dioxin yadda ya kamata.

2.Hatsarin dioxin

A matsayin samfurin ƙonawa, dioxins suna da matukar damuwa saboda gubarsu, dagewarsu da haɓakar halittu. Dioxins suna shafar tsarin hormones na ɗan adam da abubuwan filin sauti, suna da cutar kansa sosai, kuma suna lalata tsarin rigakafi. Dafin sa ya yi daidai da sau 1,000 na potassium cyanide da sau 900 na arsenic. An jera ta a matsayin matakin farko na cutar sankara na ɗan adam da kuma ɗaya daga cikin rukunin farko na gurɓataccen gurɓataccen abu a ƙarƙashin Yarjejeniyar Stockholm kan Gurɓacewar Halitta.

3.Matakan don rage dioxin a Tsarin Incinerator Gasification

Fitar da hayaƙin iskar gas na Tsarin Incinerator na Gasification wanda HYHH ya ƙera ya bi ka'idodin 2010-75-EU da ma'aunin GB18485 na kasar Sin. Matsakaicin ƙimar da aka auna shine ≤0.1ng TEQ/m³, wanda ke rage gurɓataccen gurɓataccen abu a lokacin aikin ƙona sharar gida. Incinerator Gasification yana ɗaukar tsarin ƙonewa na gasification + don tabbatar da cewa zafin konewa a cikin tanderun yana sama da 850-1100 ° C kuma lokacin zama mai hayaƙi shine ≥ 2 seconds, yana rage samar da dioxin daga tushen. Sashin iskar gas mai zafi mai zafi yana amfani da hasumiya mai kashewa don rage zafin hayaƙin hayaƙin da sauri zuwa ƙasa da 200 ° C don guje wa samar da dioxins na biyu a ƙananan yanayin zafi. A ƙarshe, za a cimma matakan fitar da dioxins.