Kev ua haujlwm ntawm activated carbon hauv dej purification
Siv cov txheej txheem adsorption ntawm cov khoom siv lim dej lim dej kom huv yog siv nws cov khoom ntxeem tau los adsorb thiab tshem tawm cov organic lossis tshuaj lom hauv dej, thiaj li ua tiav cov dej huv.Cov kev tshawb fawb tau pom tias cov pa roj carbon activated muaj zog adsorption muaj peev xwm rau cov organic tebchaw nyob rau hauv lub molecular hnyav li ntawm 500-1000.Lub adsorption ntawm cov organic teeb meem los ntawm cov pa roj carbon activated feem ntau cuam tshuam los ntawm nws qhov pore loj faib thiab cov yam ntxwv ntawm cov organic teeb meem, uas feem ntau cuam tshuam los ntawm polarity thiab molecular loj ntawm cov organic teeb meem.Rau cov organic tebchaw ntawm tib qhov loj, qhov ntau dua qhov solubility thiab hydrophilicity, qhov tsis muaj zog adsorption muaj peev xwm ntawm cov pa roj carbon activated, thaum qhov sib txawv yog qhov tseeb rau cov organic tebchaw nrog me me solubility, tsis zoo hydrophilicity, thiab tsis muaj polarity xws li benzene tebchaw thiab phenol tebchaw, uas muaj zog adsorption muaj peev xwm.
Nyob rau hauv cov txheej txheem dej purification, activated carbon adsorption purification feem ntau yog siv tom qab pom, thaum cov dej tau los kuj meej, muaj ib tug me me ntawm insoluble impurities thiab ntau soluble impurities (calcium thiab magnesium compounds).
Cov teebmeem adsorption ntawm activated carbon yog:
① Nws muaj peev xwm adsorb me me ntawm cov seem insoluble impurities hauv dej;
② Nws tuaj yeem adsorb feem ntau ntawm cov dej tsis huv;
③ Nws tuaj yeem nqus cov ntxhiab tsw hauv dej;
④ Nws tuaj yeem nqus cov xim hauv dej, ua kom cov dej ntshiab thiab meej.
Post lub sij hawm: Aug-01-2023