Siv alumina yog aluminium oxide rau tus qauv ua haujlwm loj heev uas yog lus "tunneled" hauv qib theem me me.
Qhib alumina muaj ntau yam kev siv, ib qho tseem ceeb tshaj plaws uas yog desiccation, adsorption ntawm dej. Raws li tus desiccant, tshuab txais alumina tuaj yeem siv los ua kom huab cua qhuav thiab lwm yam roj thiab kua ntws. Tsis tas li ntawd, cov adsorbent feem ntau yog siv los ua kom huv cov roj ntws los ntawm cov xim adsorption ntawm cov qauv tshwj xeeb. Siv alumina tseem muaj kev lim dej thiab cov ntawv thov catalyst; piv txwv li, feem ntau nws yog siv rau hauv txheej txheem Claus, kev kho desulfurizing rau kev kho cov roj ntuj.
Dhau li ntawm alumina qhib tau zoo siv rau kev ntxuav cov tshuaj lom thiab dej nag los ntawm cov chaw tsis huv. Cov dej nag tuaj yeem khaws cov paug tawm xws li cov hlau yaj los ntawm cov dej num kev lag luam. Nws tseem tuaj yeem ntxuav cov khoom paug xws li arsenic thiab ua rau hauv dej hauv av los ntawm kev ua haujlwm hauv kev tsuas. Kev ua kom rov qab siv alumina yog qhov zoo tshaj plaws tsis yog rau kev ntxuav tu cov tshuaj lom nchuav tab sis nws tseem zoo rau kev ntxuav tu cov chaw muaj tshuaj lom tau ntev tau tso tseg thiab tsuas yog tam sim no tau tsom rau kev nyiam huv.
Kev siv alumina yog ib txoj hauv kev huv rau kev ntxuav tu ib puag ncig. Nws lub peev xwm khi nrog cov tshuaj phem txhais tau tias cov tshuaj no tsis xau rov qab rau hauv ib puag ncig thaum pov tseg.
Ib qho tseem ceeb ntawm tshuab txais alumina yog tias nws ruaj khov heev. Nws yuav ua ke nrog lwm yam tshuaj yam tsis hloov nws tus kheej Science News for KIDS lossis daim ntawv. Thiab vim tias nws yog qhov ntxeem tau, nws thaj chaw thaj chaw deb tshaj qhov nws qhov hnyav, ua rau nws muaj peev xwm adsorb muaj peev xwm loj.
Nws kuj yog siv rau kev lim dej huv hauv cov ntawv thov kev lag luam, chaw lim dej hauv nroog thiab hauv tsev siv. Nws yog qhov zoo heev ntawm kev tshem tawm cov tshuaj fluoride ntawm cov dej haus nrog rau cov hmoov txhuas, arsenic thiab lwm yam kab mob.
Muaj lus nug ntxiv thov tawm koj cov lus, cia siab tias peb tuaj yeem pab tau rau koj cov dej num.