Plastic pollution tau dhau los ua qhov teeb meem thoob ntiaj teb, nrog ntau lab tons ntawm cov pov tseg yas xaus rau hauv peb cov dej hiav txwv, qhov chaw pov tseg, thiab ib puag ncig ntuj txhua xyoo.Kev daws qhov teeb meem no yuav tsum muaj cov kev daws teeb meem tshiab, thiab ib qho kev daws teeb meem no yog PPPE ntxhua khaub ncaws rov ua kab.
PP PE ntxhua khaub ncaws rov ua kab yog ib qho kev tsim kho kom rov siv dua thiab rov qab siv cov ntaub ntawv yas tom qab siv, tshwj xeeb polypropylene (PP) thiab polyethylene (PE).Cov hom yas no feem ntau siv rau hauv ntim, lub raj mis, thiab ntau yam khoom siv, ua rau lawv muaj txiaj ntsig zoo rau cov pov tseg yas.
Cov kab rov ua dua tshiab muaj ob peb yam tseem ceeb uas ua haujlwm sib raug zoo los ua cov txheej txheem thiab hloov cov pov tseg yas rau hauv cov ntaub ntawv rov siv tau.Thawj kauj ruam yuav tsum muaj kev txheeb xyuas cov txheej txheem uas cais cov yas sib txawv raws li lawv qhov muaj pes tsawg leeg thiab xim.Qhov no ua kom muaj cov khoom noj zoo sib xws rau cov theem tom ntej ntawm cov txheej txheem rov ua dua tshiab.
Tom ntej no, cov khib nyiab yas yog raug rau kev ntxuav kom huv.Qhov no suav nrog cov txheej txheem tu, xws li kev sib txhuam ntxuav, ntxuav dej kub, thiab kev kho tshuaj, kom tshem tawm cov kab mob xws li av, daim ntawv lo, thiab cov nplaum.Cov txheej txheem ntxuav ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv yas zoo.
Thaum ntxuav, cov khib nyiab yas yog mechanically shredded rau hauv me me pieces thiab ces dhau los ntawm ib tug series ntawm cov cuab yeej, xws li ib tug granulator, kev sib txhuam washer, thiab centrifugal tshuab ziab khaub ncaws.Cov tshuab no pab zom cov yas rau hauv granules thiab tshem tawm cov dej noo ntau dhau, npaj cov khoom siv rau theem kawg ntawm cov kab rov ua dua tshiab.
Cov yas granulated ces yaj thiab extruded rau hauv cov pellets niaj hnub, uas tuaj yeem siv los ua raw khoom rau ntau yam kev lag luam.Cov pellets rov qab siv dua no muaj cov khoom zoo ib yam li cov yas yas, ua rau lawv tsim nyog rau kev tsim cov khoom tshiab xws li cov thawv yas, cov kav dej, thiab cov khoom ntim khoom.
Cov txiaj ntsig ntawm kev siv PPPE cov kab rov ua dua tshiab yog ntau heev.Ua ntej, nws txo qis cov khoom pov tseg yas uas xaus rau hauv qhov chaw pov tseg lossis ua rau peb ib puag ncig.Los ntawm kev rov ua dua cov ntaub ntawv yas, peb tuaj yeem khaws cov khoom muaj txiaj ntsig thiab txo qis qhov xav tau ntawm cov yas tshiab.
Tsis tas li ntawd, kev siv cov yas rov ua dua tshiab txo cov pa roj carbon emissions thiab kev siv hluav taws xob cuam tshuam nrog kev tsim khoom.Cov yas rov ua dua tshiab yuav tsum muaj zog tsawg dua li kev tsim cov yas yas los ntawm cov fossil fuels, pab txhawb kom muaj kev ruaj ntseg thiab zoo ib puag ncig.
Tsis tas li ntawd, PPPE cov khoom siv rov ua dua tshiab yuav pab tsim kev lag luam ncig rau cov yas, uas cov ntaub ntawv rov qab siv dua thiab rov ua dua tshiab tsis yog pov tseg.Qhov no txo qhov kev thov rau kev tsim cov yas tshiab, txuag cov peev txheej, thiab txo qis qhov cuam tshuam tsis zoo ntawm cov khib nyiab yas rau hauv ecosystems.
Hauv kev xaus, PPPE cov khoom siv rov ua dua tshiab muaj cov kev daws teeb meem zoo los daws cov teeb meem yas pov tseg thoob ntiaj teb.Los ntawm kev siv cov txheej txheem rov ua dua tshiab no, peb tuaj yeem hloov pauv cov khoom pov tseg tom qab siv cov yas pov tseg rau hauv cov peev txheej muaj txiaj ntsig, txo cov pa phem ib puag ncig, thiab txhawb txoj hauv kev ruaj ntseg rau kev noj cov yas.Kev lees txais cov thev naus laus zis tshiab no yog qhov tseem ceeb rau kev huv thiab ntsuab yav tom ntej.
Post lub sij hawm: Aug-01-2023