Vim li cas thiaj muaj cov kev cai tshwj xeeb rau cov dej zoo thaum txias galvanized steel kav?

Cov dej txias siv rau cov kav hlau galvanized yuav tsum zoo dua yog cov dej ntshiab los yog dej hauv av. Cov dej uas muaj turbidity siab, chroma, tshem tawm cov khib nyiab, thiab cov roj slicks yuav tsum tsis txhob siv. Cov qib pH yuav tsum tau khaws cia nyob rau hauv thaj tsam ntawm 6.5-8. Yog hais tias cov dej uas muaj turbidity siab, chroma, tshem tawm cov khib nyiab, thiab cov roj slicks yog siv los ua kom txias, nws yuav ua rau muaj kev sib kis loj ntawm cov txheej txheem galvanized, cuam tshuam cov nyhuv passivation, thiab ua rau muaj kev pheej hmoo ntawm cov kab nrib pleb ntawm qhov chaw galvanized (kawg. Nws tuaj yeem tshwm sim ntawm txheej galvanized thaum qhov kub ntawm cov yeeb nkab steel galvanized siab dhau lawm thiab cov dej txias txias tsawg dhau). Thaum pH qib ntog sab nraum qhov no, nws tseem yuav muaj qee yam tsis zoo rau saum npoo ntawm txheej galvanized. Yog li ntawd, cov dej zoo ntawm cov dej txias yuav tsum tau tswj nruj heev.