Nyob rau thawj ib nrab ntawm xyoo 2021-2022, tus nqi CPE tau nce siab, feem ntau mus txog qhov siab tshaj plaws hauv keeb kwm. Txog rau lub Rau Hli 22, cov xaj hauv qab tau txo qis, thiab kev xa khoom ntawm cov tuam txhab chlorinated polyethylene (CPE) maj mam tshwm sim, thiab tus nqi tau hloov kho tsis muaj zog. Txij li thaum pib Lub Xya Hli, qhov poob qis yog 9.1%.
Raws li qhov kev lag luam hauv lub sijhawm tom qab, ntau tus neeg ua haujlwm hauv kev lag luam ntseeg tias tus nqi lag luam CPE luv luv yuav poob qis dua nyob rau hauv kev cuam tshuam ntawm cov yam tsis zoo xws li tus nqi ntawm cov khoom siv raw kua chlorine tau poob qis, tus nqi tau txo qis, kev thov hauv tsev thiab txawv teb chaws tsis muaj zog thiab kev txiav txim siab downstream tsis txaus los ua raws li, thiab cov khoom muag ntawm cov chaw tsim khoom siab.
Ib qho ntawm cov laj thawj tseem ceeb rau kev poob qis sai ntawm chlorinated polyethylene (CPE) yog qhov kev hloov pauv ntawm sab nqi. Cov kua chlorine suav txog 30% ntawm tus nqi ntawm CPE. Txij li thaum Lub Rau Hli, cov khoom khaws cia ntawm cov kua chlorine tau txaus, thiab cov nqi ntawm feem ntau cov khoom lag luam qis dua tau qaug zog, ua rau Cov txiaj ntsig ntawm qee cov khoom tsis zoo, thiab qhov kev thov rau cov kua chlorine tau txo qis, uas tau ua rau tus nqi ntawm cov kua chlorine poob qis tas li, thiab tus nqi ntawm CPE kuj tau txo qis tas li, thiab tus nqi tau qhia txog kev poob qis.
Thaum Lub Xya Hli 22, cov tuam txhab chlor-alkali tau npaj tsawg dua kev saib xyuas, thiab qee lub peev xwm tsim khoom tshiab npaj yuav pib tsim khoom. Txawm li cas los xij, kev siv chlorine hauv qab no yog nyob rau lub caij tsis muaj, thiab kev txaus siab yuav khoom tsis siab. Kev ua lag luam kua chlorine tseem pheej poob qis, thiab nws nyuaj rau tsav cov nqi CPE siab dua ntawm sab nqi.
Qhov kev thov CPE hauv qab tsis muaj zog, qhov kev ua haujlwm ntawm cov lag luam hauv qab qis dua, kev xa khoom ntawm cov lag luam PVC kuj raug thaiv, cov khoom muag rov qab, thiab tus nqi ntawm kev ua lag luam PVC poob qis sai. Cov tuam txhab PVC profile thiab cov yeeb nkab PVC hauv tsev hauv CPE tseem muaj kev thov kom yuav CPE, thiab lawv lub hom phiaj los rov ua kom lawv txoj haujlwm tsawg; cov xaj xa tawm txawv teb chaws kuj txo qis piv rau xyoo tas los. Qhov kev thov sab hauv thiab sab nraud tsis muaj zog ua rau cov khoom siv CPE qeeb thiab cov khoom muag ntau.
Feem ntau, nyob rau sab kev thov tsis muaj zog, qhov kev xa khoom CPE luv luv yuav tsis txo qis. Nws xav tias kev ua lag luam yuav qhia txog qhov sib txawv tsis muaj zog ntxiv, thiab tus nqi yuav txuas ntxiv poob qis.
Lub sijhawm tshaj tawm: Lub Peb Hlis-27-2023
