Kev Cai Yas Hnab Technology Thiab Cov Khoom Xaiv

Cov hnab yas kev cai yog tsim los ntawm ntau yam khoom siv, feem ntau suav nrog polyethylene (PE), polypropylene (PP), thiab polyvinyl chloride (PVC). Txhua yam khoom muaj lub cev thiab tshuaj lom neeg tshwj xeeb, tsim nyog rau kev ntim khoom sib txawv. Piv txwv li, PE yog mos thiab tawv, ua rau nws haum rau lub hnab ntim khoom noj; PP yog hnav ntau dua -tiv taus thiab tshav kub- tiv taus, feem ntau siv hauv kev ntim khoom. Tsis tas li ntawd, nrog kev paub txog ib puag ncig, biodegradable hnab yas maj mam dhau los ua kev xaiv nrov hauv kev lag luam kev cai. Cov hnab no siv cov khoom siv bio-raws li los yog ntxiv cov tshuaj degrading, cia lawv decompose sai sai nyob rau hauv ib puag ncig ntuj, txo cov pa phem ib puag ncig.