Tšilafalo ea polasetiki e baka tšokelo e kholo tikolohong ea rona, ka lithane tse fetang limilione tse likete tse 9 tsa polasetiki tse hlahisitsoeng ho tloha ka bo-1950, le lithane tse makatsang tse limilione tse 8.3 tse fellang maoatleng a rona selemo le selemo.Leha ho na le boiteko ba lefats'e, ke 9% feela ea polasetiki e ntseng e sebelisoa hape, e siea bongata bo silafatsa tikoloho ea rona kapa ho lula libakeng tse lahliloeng ka lilemo tse makholo.
E 'ngoe ea lintho tse tlatselitseng haholo bothateng bona ke ho ata ha lisebelisoa tsa polasetiki tse sebelisoang hang feela joalo ka mekotla ea polasetiki.Mekotla ena, e sebelisoang ka karolelano ea metsotso e 12 feela, e tsoela pele ho tšepa lipolasetiki tse lahloang.Ts'ebetso ea bona ea ho bola e ka nka lilemo tse fetang 500, e lokolla li-microplastic tse kotsi tikolohong.
Leha ho le joalo, har'a liqholotso tsena, lipolasetiki tse senyehang li fana ka tharollo e tšepisang.E entsoe ka thepa e ka nchafatsoang ea 20% kapa ho feta, bio-plastiki e fana ka monyetla oa ho fokotsa ho its'epa ha rona ka mafura le ho fokotsa khabone ea rona.PLA, e nkiloeng mehloling ea limela e kang starch ea poone, le PHA, e hlahisoang ke likokoana-hloko, ke mefuta e 'meli ea mantlha ea bio-plastiki e nang le lisebelisoa tse ngata.
Le ha lipolasetiki tse senyehang li hlahisa mofuta o mong o bonolo oa tikoloho, ho bohlokoa ho nahana ka litlamorao tsa tlhahiso ea tsona.Ts'ebetso ea lik'hemik'hale le mekhoa ea temo e amanang le tlhahiso ea bioplastic e ka kenya letsoho litabeng tsa tšilafalo le ts'ebeliso ea mobu.Ho feta moo, meaho e nepahetseng ea ho lahla li-bioplastic e ntse e haella, e totobatsang tlhoko ea maano a felletseng a taolo ea litšila.
Ka lehlakoreng le leng, lipolasetiki tse ka sebelisoang hape li fana ka tharollo e matla e nang le ts'ebetso e netefalitsoeng.Ka ho khothaletsa ho sebelisoa hape le ho tsetela ho meralo ea motheo ho e tšehetsa, re ka khelosa litšila tsa polasetiki libakeng tsa ho lahlela lithōle le ho fokotsa tšusumetso ea rona tikolohong.Le hoja lipolasetiki tse senyehang ka tlhaho li bontša tšepiso, phetoho e lebisang moruong o chitja, moo thepa e sebelisoang hape le ho sebelisoa hape, e ka fana ka tharollo e tšoarellang ea nako e telele bothateng ba tšilafalo ea polasetiki.
Nako ea poso: Apr-19-2024