III. Ukwakheka kwesakhiwo sezinkomishi zephepha
A. Ubuchwepheshe bokumboza kwangaphakathi kwezinkomishi zephepha
1. Ukuthuthukiswa kwezakhiwo zokuvimbela amanzi kanye nokuvikela umswakama
Ubuchwepheshe bokumboza kwangaphakathi bungenye yemiklamo eyinhloko yezinkomishi zephepha, ezingathuthukisa ukusebenza kokuvikela amanzi nokushisa kwezinkomishi.
Ekukhiqizweni kwendebe yephepha yendabuko, ungqimba lwesembozo se-polyethylene (PE) luvame ukufakwa ngaphakathi kwendebe yephepha. Lesi sembozo sisebenza kahle ekungangeni manzi. Singavimbela ngempumelelo iziphuzo ukuthi zingangeni ngaphakathi kwendebe yephepha. Futhi singavimbela futhiindebe yephephaekuguquguqukeni nasekuqhekekeni. Ngesikhathi esifanayo, ukugqoka kwe-PE nakho kunganikeza umphumela othile wokuvikela. Kungavimbela abasebenzisi ukuthi bazizwe beshisa kakhulu lapho bephethe izinkomishi.
Ngaphezu kokwembozwa kwe-PE, kunezinye izinto ezintsha zokumbozwa ezisetshenziswa kabanzi ezinkomishini zephepha. Isibonelo, i-polyvinyl alcohol (PVA). Inokumelana okuhle kwamanzi kanye nokumelana nokuvuza. Ngakho-ke, ingagcina kangcono ingaphakathi lendebe yephepha lomile. Ngaphezu kwalokho, i-polyester amide (PA) yokumbozwa inokukhanya okuphezulu kanye nokusebenza kokuvala ukushisa. Ingathuthukisa ikhwalithi yokubukeka kanye nokusebenza kokuvala ukushisa kwezinkomishi zephepha.
2. Isiqinisekiso Sokuphepha Kokudla
Njengesitsha esisetshenziselwa ukugcina ukudla neziphuzo, indwangu engaphakathi yokumboza izinkomishi zephepha kumele ihambisane nezindinganiso zokuphepha kokudla. Lokhu kuqinisekisa ukuthi abantu bangayisebenzisa ngokuphephile.
Izinto zokugqoka zangaphakathi kudingeka zidlule esiqinisekisweni sokuphepha kokudla esifanele. Njengesitifiketi se-FDA (Food and Drug Administration), isitifiketi sezinto zokuthintana zokudla se-EU, njll. Lezi zitifiketi ziqinisekisa ukuthi izinto zokugqoka ezingaphakathi kwendebe yephepha azibangeli ukungcola ekudleni naseziphuzweni. Futhi kuyadingeka ukuqinisekisa ukuthi azikhiphi izinto eziyingozi, okuqinisekisa impilo nokuphepha kwabasebenzisi.
B. Ukwakheka okukhethekile kwezinkomishi zephepha
1. Umklamo wokuqinisa ongezansi
Umklamo wokuqinisa ophansi weindebe yephephaukuthuthukisa amandla esakhiwo sendebe yephepha. Lokhu kungavimbela indebe yephepha ukuthi ingawi ngesikhathi sokugcwalisa nokusetshenziswa. Kunezinhlobo ezimbili ezivamile zokuqinisa phansi: phansi eligoqiwe kanye nephansi eliqinisiwe.
Iphansi eligoqekayo liwumklamo owenziwe kusetshenziswa inqubo ethile yokugoqa phansi kwendebe yephepha. Izingqimba eziningi zephepha ziboshwe ndawonye ukuze zakhe isakhiwo esiqinile sangaphansi. Lokhu kuvumela indebe yephepha ukuthi imelane nenani elithile lamandla adonsela phansi kanye nokucindezela.
Iphansi eliqinisiwe liwumklamo osebenzisa ukuthungwa okukhethekile noma izinto ezingaphansi kwendebe yephepha ukuze kwandiswe amandla esakhiwo. Isibonelo, ukwandisa ukujiya kwephansi lendebe yephepha noma ukusebenzisa impahla yephepha eqinile. Lokhu kungathuthukisa ngempumelelo amandla angaphansi endebe yephepha futhi kuthuthukise ukumelana kwayo nengcindezi.
2. Ukusetshenziswa komphumela wesitsha
Izinkomishi zephepha zivame ukufakwa ezitsheni ngesikhathi sokuthuthwa nokugcinwa. Lokhu kungonga isikhala futhi kuthuthukise ukusebenza kahle. Ngakho-ke, kusetshenziswa imiklamo ethile ekhethekile yesakhiwo ezinkomishi zephepha. Lokhu kungafeza umphumela ongcono wesitsha.
Isibonelo, ukwakheka kwenkomishi yephepha kungenza ingaphansi lenkomishi limboze ingxenye ephezulu yenkomishi yephepha elandelayo. Lokhu kwenza kube lula ukuthi izinkomishi zephepha zihlangane futhi konge isikhala. Ngaphezu kwalokho, ukwakheka okunengqondo kwesilinganiso sokuphakama nobubanzi bezinkomishi zephepha kungathuthukisa nokuzinza kokufakwa kwenkomishi yephepha. Lokhu kungagwema izimo ezingazinzile ngesikhathi senqubo yokufaka.
Ubuchwepheshe bokumboza kwangaphakathi kanye nokwakheka okukhethekile kwezakhiwo zezinkomishi zephepha kungathuthukisa ukusebenza kwazo kanye nokusebenza kwazo. Ngokusungula izinto ezintsha kanye nokuthuthukiswa okuqhubekayo, izinkomishi zephepha zingahlangabezana kangcono nezidingo zabantu zezinto zokuxhumana nokudla. Ngaphezu kwalokho, kunganikeza ulwazi lomsebenzisi oluphephile, olulula, nolunobungani nemvelo.