Lub hnab ntim khoom siv yog siv tshwj xeeb export ntim hnab ntim rau cov hmoov, txhab, thiab cov khoom lag luam tawv. Nws yog ib qho tsim nyog yuav tsum xyuas kom cov khoom xa tawm tuaj yeem tiv thaiv cov khoom thauj thaum lub sijhawm thauj khoom, tsis tso tawm, thauj mus los thiab txheej txheem cia, thiab cov khoom tuaj yeem thauj mus rau qhov chaw mus rau qhov chaw nyab xeeb thiab zoo. Hauv qab no yog kev nkag siab ntxaws ntxaws ntawm kev tsim cov tshuaj ntawm cov hnab ntim khoom hauv lub hnab ntim khoom ntxiv:
1. Thaum tsim qauv, nws yuav tsum xav txog kev ntim khoom ntim ib tuj, qhov hnyav ntawm lub nra thiab tus lej ntawm cov khoom ntim, nrog rau qhov kev ncua deb ntawm kev thauj mus los thiab pes tsawg lub sijhawm ntawm kev thauj mus los, ntxiv rau cov txhais tau tias cov tsheb thauj mus los siv. Hauv lub teb chaws tus qauv, cov ntsiab lus kev xav tau ntawm cov ntaub npuag thiab cov hlua khi yog nruj me ntsis;
2. Tons ntawm lub hnab ntim khoom yuav tsum yog raws li tus neeg siv' s tej yam kev siv, kev xaiv cov khoom tsim nyog, kev sib piv tsim nyog. Qhov kev tawm tsam los tiv thaiv kev laus ntawm cov khoom siv yas hauv qab lub hnub yog qhov kev txhawj xeeb nyob rau tam sim no, thiab ib qho teeb meem feem ntau ntsib thaum lub sijhawm kev thauj mus los ntawm cadmium khoom;
3. Nws yog qhov yuav tsum tau ua tib zoo xav txog cov kev tshwj xeeb thiab cov hau kev ntawm cov neeg siv khoom siv hnab loj. Cov neeg tsim khoom ntawm lub hnab loj ntawm cadmium ore suav nrog nqa, thauj, thiab thauj khoom ua haujlwm.
Tons ntawm lub hnab ntim cov khoom sib txawv thiab cov khoom sib txawv sib txawv raws li cov qauv siv tshuaj. Piv txwv li, hmoov lossis tshuaj lom, thiab cov ntawv xov xwm uas ntshai tsam kis tau muaj cov kev cai nruj heev ntawm kev ua haujlwm sib khi. Yog li no, thaum tsim lub hnab ntim ton, them sai sai rau cov cawv ntawm cov ntaub npuag txheej txheem thiab cov txheej txheem xaws ntawm kev ua haujlwm sealing.