Ngokwandisa ulwazi ngefuthe lokusingqongileyo lenkunkuma yenkunkuma kunye nomthwalo ophuculweyo onxulumene nokuchithwa kwayo, kukho i-drive yokusebenzisa ukuphinda isebenze endaweni yeplasitiki endaweni yeVidiyo yeVidiyo naphina apho kunokwenzeka. Njengoko izidlo ezininzi zelebhu zenziwa ngeplastiki, oku kuphakamisa umbuzo wokuba kunokwenzeka ukuba ukutshintshela kwi-labs ehlaziyiweyo kwilebhu, kwaye ukuba kunjalo, njani.
Izazinzulu zisebenzisa izidumbu zeplastiki kuluhlu olubanzi lweemveliso ngaphakathi kwaye zijikeleze ilebhu-kubandakanya iityhubhu (I-tubes,I-PUBR TUBES,I-Centrifuge tubes), I-microplatro (iiplate zenkcubeko,I-24,48,96 ye-vele enzulu, I-PCR Paltes), Iingcebiso zePipette(Iingcebiso ze-Autod okanye i-Universal), izitya zePeri,Iibhotile zokuqala,kunye nokuninzi. Ukufumana iziphumo ezichanekileyo nezinokuthenjwa, izixhobo ezisetyenziswayo kwizinto ezinokusetyenziswa zifuna ukuba zeyona migangatho iphezulu xa ifumaneka kumgangatho, ukungqinelana nokucoceka. Iziphumo zokusebenzisa izixhobo zePhezulu zinokuqatha: Idatha evela kuvavanyo olupheleleyo, okanye uthotho lweemvavanyo, zinokungabi lilize ngendlela enye engasebenziyo okanye enongcoliseko. Ke, ngaba kunokwenzeka ukuba ufezekise le migangatho iphezulu kusetyenziswa iplastiki ehlaziyiweyo? Ukuphendula lo mbuzo, kufuneka siqale siqonde ukuba kwenziwe njani oku.
Zihlaziywa njani iiplasitiki?
Ehlabathini lonke, ukuphinda kusetyenziswe kwakhona kweplastiki kushishino olukhulayo, ukuqhutywa kukwazisa ngefuthe leyona nkunkuma ikwindawo yehlabathi kwimo yehlabathi. Nangona kunjalo, kukho ukwahluka okukhulu kwizikimu zokuphinda zisebenzelwe kumazwe ahlukeneyo, zombini ngokwemigangatho nakwenziwa. EJamani, umzekelo, iskimu sendawo ye-Green, apho abavelisi bahlawula ngeendleko zokurisayikilikisha iplastiki kwiimveliso zabo, baphunyezwa kwangexesha le-Europe. Nangona kunjalo, kumazwe amaninzi ukuba kusetyenziswe kwakhona iiplastiki kuncinci, ngokuyinxenye ngenxa yemiceli mngeni emininzi enxulumene nokurisayikilisha ngokutsha.
Umceli mngeni ophambili kwiplastiki yokuphinda uyisebenzise iplastiki kukuba iiplasitiki ziliqela lezixhobo ezahlukeneyo ze-chemic, umzekelo, iglasi. Oku kuthetha ukuba ukufumana izinto ezisetyenzisiweyo ezisetyenzisiweyo, inkunkuma yeplastiki kufuneka ilungiswe ngokwamanqanaba. Amazwe ahlukeneyo kunye nemimandla aneenkqubo zabo ezisemgangathweni zokuhlela inkunkuma esebenzayo, kodwa uninzi lube yinto efanayo yePlastiki:
- I-Polythylene Terephthalate (PET)
- I-Polythylene ePhezulu (i-HDPE)
- I-Polyvinyl Chloride (PVC)
- I-Polythylene (i-ldpe)
- I-Polypropylene (PP)
- I-Polystrene (PS)
- Enye
Kukho umahluko omkhulu ekulula ukurisayikilisha kwezi ndidi ezahlukeneyo. Umzekelo, amaqela 1 no-2 alula kakhulu ukuphinda asebenzise kwakhona, ngelixa udidi 'olunye' (iQela le-7) alihlali lisebenze kwakhona5. Ngaphandle kwenani leqela, iplastiki ehlaziyiweyo iphinde yahluka kakhulu kwiintombi zabo zentombi, ukucoceka kunye neepropathi zoomatshini. Isizathu soku kukuba emva kokucoca kunye nokuhlela, ukungcola, nokuba kuvela kwiindidi ezahlukeneyo zeplastiki okanye kwizinto ezinxulumene nokusetyenziswa kwagqitywa kwezinto, kuhlala kunjalo. Ke ngoko, uninzi lweeplastiki (ngokungafaniyo) ziphinde zisetyenzisiwe kuphela kwaye izinto ezihlaziyiweyo zinezicelo ezahlukeneyo kuneentombi zabo zentombi.
Zeziphi iimveliso ezinokwenziwa kwiiplastiki ezihlaziyiweyo?
Umbuzo wabasebenzisi be-lab yile: uthini ngeelebhu zelebhu? Ngaba zikho izinto ezinokuthi zivelise iiplasitiki zeBandla kwizinto ezisetyenzisiweyo? Ukuchonga oku, kuyimfuneko ukujonga ngokusondeleyo kwiPropathi abasebenzisi balindele ukuvela kwiilebhu ezinokutya kunye neziphumo zokusebenzisa izixhobo zePortandard.
Eyona nto ibaluleke kakhulu kwezi propoti icocekile. Kubalulekile ukuba ukungcola kwiplastiki esetyenzisiweyo ukuba izidlo ze-lab zincitshiswe njengoko zinokukhupha i-polymer nakwisampulu. Oku kubizwa ngokuba nguhambo kunokuba luluhlu lweziphumo ezingalindelekanga, inkcubeko yezindlu eziphilayo, ngelixa ikwaphembelela ubuchule bokuhlalutya. Ngesi sizathu, abavelisi beelebhu zelebhu bahlala bethabatha izixhobo ngeewonge eziMpuma.
Xa kufikwa kwiPlastikis ehlaziyiweyo, akunakwenzeka ukuba abavelisi bamisele imvelaphi echanekileyo yezixhobo zabo kwaye ngenxa yoko le nto inokubakho. Kwaye nangona abavelisi benza umzamo omkhulu wokucoca iipleyiti ngexesha lenkqubo yokurisayikilisha, ukucoceka kwezinto ezisetyenzisiweyo ziphantsi kakhulu kunamadlala entombi. Ngesi sizathu, i-plastics ehlaziyiweyo ilungele iimveliso ezisetyenziswayo ezingachaphazelekanga kubandakanywa ukuhamba ngenye indlela. Imizekelo ibandakanya izixhobo zokwakha izindlu kunye neendlela (i-HDPE), impahla (impahla (impahla), kunye nezinto ze-sushioing zokupakisha (i-PS)
Nangona kunjalo, ngenxa yelebhu, kunye nezinye izicelo ezibuthathaka ezifana nezixhobo ezininzi zokunxibelelana nokutya, amanqanaba ococeko lweenkqubo zokurisayikilisha akwanelanga ukuqinisekisa iziphumo ezinokuthenjwa, zibuyisiwe kwilebhu. Ukongeza, ukucaciswa okuphezulu kwepropathi kunye nokungaguquguqukiyo kubalulekile kubuninzi beelebhu, kwaye ezi mfuno azinelisekanga xa zisebenzisa iplastiki ehlaziyiweyo. Ke ngoko, ukusebenzisa ezi zixhobo kunokukhokelela kwizikhundla zobuxoki okanye ezingalunganga kuphando, iimpazamo ngophando lwe-forensic, kunye nokuchongwa okungalunganga kwezonyango.
Ukuqukumbela
Ukuphinda kufundekiwe ngeplastiki sisimo esimiselweyo nelikhulayo kwihlabathi liphela eya kuba nefuthe elihle, elihlala liphelile kwindalo ngokunciphisa inkunkuma yeplastiki. Kwimeko ye-lab, iplastiki ehlaziyiweyo inokusetyenziswa kwizicelo ezingaxhomekekanga kubunyulu, umzekelo ukupakisha. Nangona kunjalo, iimfuno zelebhu ezinokutya zelebhu ngokunyaniseka kunye nokungaguquguquka azinakufezekiswa ziindlela zokuphinda zisebenzise kwakhona, kwaye ke ezo zinto zinokwenziwa ezivela kwi-Plastics enyulu.
IXESHA LOKUQALA: UJan-29-20233