Cov pa oxygen puas tuaj yeem rov qab siv tau? Vim li cas

Oxygen scavengers feem ntau tsis tuaj yeem rov siv dua. Qhov no yog vim cov tshuaj lom neeg nqus cov pa oxygen scavengers (xws li hlau hmoov thiab sulfites) tshem tawm cov pa oxygen los ntawm cov tshuaj tiv thaiv tsis tau. Tom qab cov tshuaj tiv thaiv, cov khoom xyaw nquag hloov mus rau hauv cov khoom sib txuas ruaj khov (xws li ferric hydroxide thiab sodium sulfate), thiab lawv cov pa oxygen qub- tshem tawm tsis tuaj yeem rov qab los. Txawm tias muab cov pa oxygen tshem tawm mus rau saum huab cua yuav tsis rov ua nws cov pa oxygen- tshem tawm txoj haujlwm. Thaum lub cev adsorption oxygen scavengers (xws li cov pa roj carbon activated) tuaj yeem tsim kho dua los ntawm cov cua sov desorption, cov txheej txheem tsim dua tshiab yuav tsum muaj cov cuab yeej tshwj xeeb thiab cov xwm txheej tshwj xeeb, thiab lub peev xwm adsorption tom qab rov tsim dua yuav txo qis, ua rau lawv tsis tsim nyog rau cov neeg siv khoom siv dua tshiab. Yog li ntawd, cov pa oxygen scavengers yog tag nrho ib leeg - siv cov khoom thiab yuav tsum tau hloov nrog cov tshiab tam sim ntawd tom qab lawv ua tsis tau zoo.