Hauv thawj ib nrab ntawm 2021-2022, CPE cov nqi nce siab, qhov pib nce siab tshaj plaws hauv keeb kwm. Thaum Lub Rau Hli 22, kev txiav txim qis qis qis, thiab kev xa khoom siab ntawm chlorinated polyethylene (CPE) cov tuam txhab maj mam tshwm sim, thiab tus nqi tau hloov pauv tsis muaj zog. Raws li thaum ntxov Lub Xya Hli, qhov poob yog 9.1%.
Raws li kev lag luam kev lag luam nyob rau lub sijhawm tom qab, ntau tus neeg lag luam sab hauv ntseeg tau hais tias lub sij hawm luv luv CPE kev ua lag luam tus nqi yuav poob qis ntxiv nyob rau hauv kev cuam tshuam ntawm cov khoom tsis zoo xws li tus nqi ntawm cov khoom siv raw cov kua chlorine tau poob, tus nqi raug txo, cov Kev thov hauv tsev thiab txawv teb chaws yog ob qho tib si tsis muaj zog thiab kev txiav txim qis qis tsis txaus los ua raws li, thiab cov khoom muag ntawm cov tuam ntxhab yog siab.
Ib qho ntawm cov laj thawj tseem ceeb rau kev poob sai ntawm chlorinated polyethylene (CPE) yog qhov hloov pauv ntawm tus nqi sab. Cov kua chlorine tso nyiaj rau 30% ntawm tus nqi ntawm CPE. Txij li thaum Lub Rau Hli, cov khoom khaws cia ntawm cov tshuaj chlorine tau txaus, thiab cov nqi ntawm cov khoom lag luam hauv qab feem ntau tsis muaj zog, ua rau cov txiaj ntsig ntawm qee cov khoom lag luam tsis zoo, thiab qhov kev thov rau cov kua chlorine tau poob qis, uas tau ua rau cov khoom lag luam poob qis. tus nqi ntawm cov kua chlorine, thiab tus nqi ntawm CPE kuj tau txo qis, 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 qhov kev npaj muaj peev xwm tshiab yuav pib tsim khoom. Txawm li cas los xij, kev siv cov tshuaj chlorine hauv qab yog nyob rau lub caij tawm, thiab kev yuav khoom txaus siab tsis siab. Cov kua chlorine ua lag luam tseem poob qis, thiab nws nyuaj rau tsav CPE tus nqi siab dua ntawm tus nqi.
Qhov kev thov qis qis rau CPE tsis muaj zog, kev ua haujlwm ntawm cov lag luam downstream qis dua, cov khoom xa tuaj ntawm PVC cov lag luam tseem raug thaiv, cov khoom lag luam rov qab, thiab cov nqi ntawm PVC ua lag luam poob sai heev. Hauv tsev CPE lub ntsiab hauv qab PVC profile thiab PVC yeeb nkab tuam txhab uas muag tswj nruj kev thov rau CPE yuav, thiab lawv lub hom phiaj los ua kom tiav lawv txoj hauj lwm yog tsawg; Kev xa tawm txawv teb chaws kuj tau txo qis piv rau xyoo tas los. Qhov tsis muaj zog sab hauv thiab sab nraud xav tau ua rau qeeb ntawm CPE cov khoom siv thiab cov khoom muag siab.
Ntawm tag nrho, nyob rau hauv qhov tsis muaj zog thov sab, lub sij hawm luv luv CPE xa khoom siab yuav tsis txo. Nws cia siab tias kev ua lag luam yuav qhia txog qhov tsis muaj zog ntxiv, thiab tus nqi yuav poob mus ntxiv.
Post lub sij hawm: Mar-27-2023
