Ungabona kanjani ukuthi into iyakwazi ukubola?Izinkomba ezintathu zidinga ukubhekwa: izinga lokuwohloka okuhlobene, umkhiqizo wokugcina kanye nensimbi enzima.Enye yazo ayihlangabezani nezindinganiso, ngakho-ke ayikwazi ukubola ngobuchwepheshe.
Njengamanje, kunezinhlobo ezimbili eziyinhloko zamapulasitiki ezonakaliswe mbumbulu: ukushintshwa komqondo kanye nezinsalela ngemva kokubola.Isizathu esikhulu sokukhiqiza inqwaba yamapulasitiki mbumbulu awonakalayo ukuthi inqubomgomo yokuvinjelwa kwepulasitiki iqhubekisele ukukhula okuqhubekayo kwesidingo sasekhaya samapulasitiki awonakele.Njengamanje, "ukuvinjelwa kwepulasitiki" kuvinjelwe ngokuphelele kuphela ezitshalweni zepulasitiki, futhi umthamo wasekhaya owohlokayo ungambozwa.Ngokuzayo, izinto ezigugulekayo zizokwethulwa kancane kancane futhi zisetshenziswe kuzo zonke izitsha zokudla, futhi ubudlelwano phakathi kokunikezwa kanye nesidingo kumele bufaniswe kancane kancane, kodwa amazinga nokugadwa ayashoda.Ngokuhambisana nentengo ephezulu yezinto zangempela ezonakaliswa, amabhizinisi aqhutshwa izithakazelo, ikhono lokuhlonza abathengi libuthakathaka, okuholela ekulimaleni okungamanga.
1. Umqondo wepulasitiki engaboli uyashintshwa
Amapulastiki endabuko kanye nezithasiselo ezihlukahlukene zokucekela phansi noma amapulasitiki asekelwe kuzinto eziphilayo kuxutshwe ndawonye, futhi umqondo "wezinto zebanga lokudla" kanye "nemikhiqizo yokuvikela imvelo" uthathelwa indawo.Izinga langempela lokuwohloka liphansi ekugcineni, elingahlangabezani nezidingo zemikhiqizo ewohlokayo kanye namazinga e-biochemical.
UWu Yufeng, uprofesa e-Institute of Circular Economy e-Beijing University of Technology, engxoxweni abe nayo ne-Consumption Daily ukuthi "ibanga lokudla" liyindinganiso kazwelonke kuphela yokuphepha kwezinto ezingavuthiwe, hhayi isitifiketi semvelo.“Uma sikhuluma ‘ngamapulasitiki angaboli,’ sisho amapulasitiki okuthi, ngaphansi kwezimo ezithile, agcine ephuke ngokuphelele abe yi-carbon dioxide noma i-methane, amanzi kanye nezinye izinto eziphilayo.Eqinisweni, nokho, eziningi okuthiwa 'amapulasitiki abolayo' ayizinto ezixubile ezihlanganisa amapulasitiki avamile nezithasiselo ezihlukahlukene zokuwohloka noma amapulasitiki asekelwe ku-bio.Ngaphezu kwalokho, eminye imikhiqizo yepulasitiki ize isebenzise izinto zokusetshenziswa zepulasitiki ezingaboli, njenge-polyethylene, yengeza i-ejenti yokuwohloka kwe-oxidation, i-photodegradation ejenti, okuthiwa 'iyawohloka', iveza imakethe, iphazamisa imakethe."
2. Izinsalela ngemva kokubola
Ingeza ingxenye ethile yesitashi, ngokusebenzisa izakhiwo ezibonakalayo ze-starch biodegradable materials collapse, PE, PP, PVC, njll kokubola akukwazi nje ukumuncwa imvelo, kodwa ngenxa yokuthi okungabonakali ngeso lenyama kuyohlala kuhlale emvelweni. , akugcini nje ngokusiza ekugayweni kabusha kwepulasitiki nokuhlanza, ukuhlukaniswa kwepulasitiki kube kuzodala umonakalo omkhulu emvelweni.
Isibonelo, i-D2W ne-D2W1 izithasiselo ze-biodegradation ezenziwe nge-oxidized.Izikhwama zepulasitiki ezenziwe nge-PE-D2W kanye (PE-HD)-D2W1 ziyizikhwama zepulasitiki ze-oxidized biodegradation, kusho uLiu Jun, umqondisi weShanghai Institute of Quality Supervision and Inspection Technology kanye nonjiniyela ophezulu wezinga likaprofesa, engxoxweni abe nayo neBeijing. Izindaba.Ifakwe esigabeni samanje se-GB/T 20197-2006 samapulasitiki awonakele.Kodwa inqubo yokwehlisa ama-plastiki anjalo ukuthi ezinkulu ziba zincane futhi ezincane ziphuka, ziguqule zibe ama-microplastics angabonakali.
Isikhathi sokuthumela: Nov-23-2022