Ferrochrome nws tus kheej tsis muaj kev phom sij, tab sis muaj qee qhov kev pheej hmoo cuam tshuam nrog nws cov kev tsim khoom, tuav thiab ib puag ncig.
Nov yog cov kev txiav txim siab tseem ceeb:
1. Kev Noj Qab Haus Huv
Raug rau hmoov av: Thaum tsoo, kev ua, lossis ua tiav, ferrocrome hmoov av tuaj yeem nqus tau. Lub sijhawm ntev raug rau chromium tebchaw, tshwj xeebhexavalent chromium (CRROMAL),yog ib tug paub carcinogen thiab tuaj yeem ua rau mob ntsws.
Xov Xwm Hlau: Cov neeg ua haujlwm koom nrog Ferriachrome muaj peev xwm tuaj yeem nthuav tawm cov vapors uas tuaj yeem ua pa pheeb suab thiab mob ntsws.
Tawv thiab Qhov Muag: Sib cuag ncaj qha nrog cov ntaub ntawv uas muaj cov chromium yuav ua rau tawv nqaij voos lossis kev ua xua.
2. Kev Nyab Xeeb Ib puag ncig
Hexavalent chromium (CRROMAL (CRRO) kev paug))Qee cov txheej txheem ferriorome cov txheej txheem tuaj yeem tso tawm rau hauv dej lossis huab cua yog tias tsis muaj kev tswj hwm kom zoo thiab kev nyab xeeb rau kev noj qab haus huv.
Huab cua ua pa: Cov txheej txheem smelting tso tawmCarbon Monoxide (CO), Sulfur Dioxide (so₂), thiab kev txheeb xyuas qhov teeb meem, uas ua txhawb rau cov pa phem.
KHib Daim Ntawv: Lub sub tsim tawm thaum lub sijhawm ntau lawm tuaj yeem muaj cov hlau hnyav tuaj yeem pom cov hlau hnyav uas tuaj yeem pom cov av thiab dej kom zoo.
3. Kev Nyab Xeeb Kev Nyab Xeeb
Txhawm rau txo qis kev phom sij, kev lag luam ua raws txoj cai nruj:
Qhov cua thiab ua pa: Plua Plav thiab Haus Luam Yeeb Cov Tshuab Luam Yeeb txo cov ntsiab lus ntawm cov huab cua.
Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE):Cov neeg ua haujlwm hnav ris tsho ua pa, hnab looj tes thiab cov khaub ncaws tiv thaiv.
Tsim nyog khib nyiab pov tseg: Slag thiab pov tseg yog kho kom tiv thaiv chomium leaching.
Cov kev cai ib puag ncig: Ua raws li cov kev cai tswj hwm (xws li EU ncav cuag, OSHA thiab EPA cov qauv) kom muaj kev nyab xeeb nyab xeeb thiab tuav.
