1. Txheej txheem cej luam ntawm cov saw hlau kev lag luam:
Lub npe tag nrho ntawm polylactic acid yog poly lactic acid lossis poly lactic acid. Nws yog cov khoom siv polyester siab molecular tau los ntawm polymerization nrog lactic acid lossis lactic acid dimer lactide ua monomer. Nws yog cov khoom siv hluavtaws siab molecular thiab muaj cov yam ntxwv ntawm lub hauv paus biological thiab degradability. Tam sim no, polylactic acid yog cov yas biodegradable nrog kev lag luam laus tshaj plaws, cov zis loj tshaj plaws thiab siv dav tshaj plaws hauv ntiaj teb. Qhov nce ntawm polylactic acid kev lag luam yog txhua yam khoom siv raw, xws li pob kws, qab zib, qab zib beet, thiab lwm yam, qhov nruab nrab yog kev npaj ntawm polylactic acid, thiab qhov nqes dej yog daim ntawv thov ntawm polylactic acid, suav nrog cov khoom siv tiv thaiv ib puag ncig, kev ntim khoom tiv thaiv ib puag ncig, thiab lwm yam.
2. Kev lag luam sab saud
Tam sim no, cov khoom siv raw ntawm kev lag luam polylactic acid hauv tsev yog lactic acid, thiab lactic acid feem ntau yog npaj los ntawm pob kws, qab zib, beet qab zib thiab lwm yam khoom ua liaj ua teb. Yog li ntawd, kev lag luam cog qoob loo uas muaj pob kws yog kev lag luam sab saud ntawm polylactic acid kev lag luam saw. Los ntawm qhov pom ntawm Tuam Tshoj cov khoom tsim tawm pob kws thiab thaj chaw cog qoob loo, Tuam Tshoj cov khoom tsim tawm pob kws yuav ncav cuag 272.55 lab tons hauv xyoo 2021, nrog rau qhov loj, thiab thaj chaw cog qoob loo tau ruaj khov ntawm 40-45 lab hectares tau ntau xyoo. Los ntawm kev muab pob kws mus sij hawm ntev hauv Tuam Tshoj, nws tuaj yeem cia siab tias kev muab pob kws yuav ruaj khov yav tom ntej.
Raws li lwm cov khoom siv raw uas siv tau los tsim cov kua qaub lactic, xws li qab zib thiab qab zib beet, Tuam Tshoj cov khoom tsim tawm tag nrho hauv xyoo 2021 yog 15.662 lab tons, uas qis dua li xyoo dhau los, tab sis tseem nyob rau theem ib txwm. Thiab cov tuam txhab lag luam thoob ntiaj teb kuj tseem tab tom tshawb nrhiav txoj hauv kev tshiab los npaj cov kua qaub lactic, xws li siv cov qab zib hauv cov ntoo fibers xws li straw thiab sawdust los npaj cov kua qaub lactic lossis tshawb nrhiav txoj hauv kev siv methane los tsim cov kua qaub lactic. Feem ntau, kev muab khoom ntawm kev lag luam upstream ntawm polylactic acid yuav ruaj khov yav tom ntej.
3. Kev lag luam nruab nrab
Ua ib yam khoom siv uas lwj tag nrho, polylactic acid tuaj yeem coj cov khoom siv raw mus rau hauv lub kaw lus rov ua dua tshiab thiab rov ua dua tshiab, uas muaj qhov zoo uas cov khoom siv roj av tsis muaj. Yog li ntawd, kev siv polylactic acid hauv kev lag luam hauv tsev tab tom nce ntxiv. Kev siv hauv tsev hauv xyoo 2021 yog 48071.9 tons, nce 40% xyoo-rau-xyoo.
Vim tias Tuam Tshoj muaj peev xwm tsim cov polylactic acid tsawg, qhov ntau ntawm cov polylactic acid xa tawm hauv Tuam Tshoj ntau dua li qhov ntau ntawm kev xa tawm. Nyob rau xyoo tas los no, qhov ntau ntawm cov polylactic acid xa tawm tau nce sai sai vim yog kev thov hauv tsev. Xyoo 2021, kev xa tawm polylactic acid tau txog 25294.9 tons. Kev xa tawm polylactic acid kuj tau ua tiav zoo hauv xyoo 2021, ncav cuag 6205.5 tons, nce ntxiv 117%.
Daim ntawv tshaj tawm cuam tshuam: daim ntawv tshaj tawm txog kev tshuaj xyuas kev txhim kho thiab kev kwv yees kev txhim kho ntawm Tuam Tshoj txoj kev lag luam khoom polylactic acid txij xyoo 2022 txog 2028 tau muab los ntawm Zhiyan consulting.
4. Kev lag luam hauv qab
Hauv cov ntawv thov downstream, polylactic acid tau siv rau ntau qhov chaw nrog nws cov biocompatibility thiab biodegradability tshwj xeeb. Tam sim no, nws tau siv dav hauv kev ntim khoom noj, cov khoom siv rooj tog, cov hnab yas ntim thiab lwm yam khoom thiab cov teb. Piv txwv li, cov yas ua liaj ua teb ua los ntawm polylactic acid tuaj yeem lwj tag thiab ploj mus tom qab sau qoob loo, uas yuav tsis txo cov dej thiab av fertility, tab sis kuj zam kev ua haujlwm ntxiv thiab cov nqi ua haujlwm uas xav tau rau kev rov qab tau cov yas yas, uas yog qhov sib txawv ntawm kev txhim kho yas yas hauv Suav teb yav tom ntej. Thaj chaw uas npog los ntawm yas yas hauv Suav teb yog li 18000 hectares, thiab kev siv yas yas hauv xyoo 2020 yog 1357000 tons. Thaum cov yas yas degradable tuaj yeem nrov npe, kev lag luam polylactic acid muaj qhov chaw loj heev rau kev txhim kho yav tom ntej.
Lub sijhawm tshaj tawm: Lub Ob Hlis-14-2022