Nyob rau thawj ib nrab ntawm xyoo 2022, kev lag luam calcium carbide hauv tebchaws tsis tau txuas ntxiv qhov kev hloov pauv dav hauv xyoo 2021. Kev lag luam tag nrho nyob ze rau kab nqi, thiab nws raug kev hloov pauv thiab kev hloov kho vim yog qhov cuam tshuam ntawm cov khoom siv raw, kev muab khoom thiab kev thov, thiab cov xwm txheej downstream. Nyob rau thawj ib nrab ntawm lub xyoo, tsis muaj peev xwm nthuav dav tshiab ntawm cov nroj tsuag calcium carbide hauv tebchaws PVC, thiab kev nce ntxiv ntawm kev thov kev lag luam calcium carbide tau txwv. Nws nyuaj rau cov tuam txhab chlor-alkali uas yuav calcium carbide los tswj hwm qhov kev thauj khoom ruaj khov rau lub sijhawm ntev.
Lub sijhawm tshaj tawm: Lub Xya Hli-20-2022