Qhov zoo thiab qhov tsis zoo
Qhov zoo ntawm qhov kev ua ntawm trivalent chromium yog cathode efficiency dua thiab zoo zog ntim zog. Zoo zog ntim txhais tau tias zoo dua cov nqi them. Tsawg dua lub zog yuav tsum muaj vim yog qhov tsawg dua ntom ntom ntom tau qhov yuav tsum tau ua. Cov txheej txheem yog ntau tshaj li qhov ua tau zoo tshaj chromium vim nws tuaj yeem tiv thaiv tam sim no kev cuam tshuam.
Los ntawm kev noj qab nyob zoo, trivalent chromium yog intrinsically toxic dua hexavalent chromium. Vim tias qhov qis toxicity nws tsis yog tswj raws li nruj me ntsis, uas txo cov nqi siv nyiaj siv ua haujlwm. Lwm cov kev noj qab haus huv zoo muaj xws li cathode efficiencies ntau, uas ua rau chromium cua emissions tsawg dua; tsawg dua concentration theem, ua rau chromium pov tseg tsawg dua thiab anodes uas tsis decompose.
Ib qho ntawm qhov tsis zoo yog thaum cov txheej txheem pib ua yog tias cov neeg siv khoom zoo nkauj tsis pom zoo ntawm cov xim txawv. Cov tuam txhab tam sim no siv cov additives los kho xim. Hauv daim ntaub txheej tawv txheej, qhov kev sib zog ntawm kev sib zog ntawm cov coatings tsis zoo yog tsis zoo li nws yog nrog hexavalent chromium. Tus nqi ntawm cov tshuaj muaj ntau dua, tab sis qhov no feem ntau offset yog cov nqi ntau dua thiab txo nqi siv nyiaj. Feem ntau, cov txheej txheem yuav tsum tau tswj ntau ze tshaj hauv lub hexavalent chromium plating, tshwj xeeb tshaj yog rau kev hwm rau nws lub cev. Qhov no txhais tau hais tias muaj dab tsi uas nyuaj rau kev tswj hwm, xws li phom plating, muaj ntau yam nyuaj siv ib tus neeg ntxim nyiam chromium da dej.
