Iphepha elishisayo liyinto evame ukusetshenziswa ezimbonini ezahlukahlukene ezihlanganisa ezokuthengisa, zamabhange kanye nezokuthutha.Igcotshwe ngodayi okhethekile oshintsha umbala uma ifudunyezwa, okuyenza ilungele ukuphrinta amarisidi, amalebula nezitikha zebhakhodi.Kodwa-ke, iphepha elishisayo alikwazi ukuphinda lisetshenziswe ngezindlela zendabuko zokugaywa kabusha kwephepha ngenxa yokuba khona kwamakhemikhali nokungcola.Ngakho-ke, izinqubo ezikhethekile ziyadingeka ukuze kuphathwe ngempumelelo futhi kusetshenziswe kabusha iphepha elishisayo futhi kuncishiswe umthelela walo endaweni.Kulesi sihloko, sizohlola izinyathelo ezihilelekile ekucutshungulweni nasekusetshenzisweni kabusha kwephepha elishisayo.
Isinyathelo sokuqala enqubweni yokugaywa kabusha ukuqoqa amaphepha ashisayo asetshenzisiwe.Lokhu kungenziwa ngezindlela ezihlukahlukene, njengokubeka imigqomo yokuqoqa ezinikele ezitolo nasemahhovisi, noma ukusebenzisana nezinkampani ezigaya kabusha ukuze kuqoqwe udoti wamaphepha ashisayo.Ukuhlukaniswa okufanele kubalulekile ukuze kuqinisekiswe ukuthi kuqoqwe iphepha elishisayo kuphela futhi lingaxutshwa nezinye izinhlobo zephepha.
Uma seliqoqiwe, iphepha elishisayo lithuthwa liyiswe endaweni yokugaywa kabusha lapho lidlula uchungechunge lwezinyathelo zokususa odayi nokunye ukungcola.Isinyathelo sokuqala sesigaba sokucubungula sibizwa ngokuthi i-pulping, lapho iphepha elishisayo lixutshwa namanzi ukuze lihlehlise libe imicu ngayinye.Le nqubo isiza ukuhlukanisa udayi emicu yephepha.
Ngemuva kwe-pulping, ingxube iyahlolwa ukuze isuse noma yiziphi izinhlayiya eziqinile ezisele kanye nokungcola.Uketshezi oluvelayo lube selufakwa ngaphansi kwenqubo yokuntanta, lapho kwethulwa khona amabhamuza omoya ukuze ahlukanise udayi emanzini.Udayi ulula futhi untanta phezulu futhi uyasuswa, kuyilapho amanzi ahlanzekile alahlwa.
Isinyathelo esilandelayo enqubweni yokugaywa kabusha ukukhipha amakhemikhali akhona ephepheni elishisayo.Lawa makhemikhali ahlanganisa i-bisphenol A (BPA), esebenza njengonjiniyela wodayi ephepheni.I-BPA isiphazamisi se-endocrine esaziwayo esibeka engcupheni impilo yomuntu kanye nemvelo.Ubuchwepheshe obuhlukahlukene, obufana ne-activated carbon adsorption kanye ne-ion exchange, bungasetshenziswa ukususa i-BPA namanye amakhemikhali emanzini.
Uma odayi namakhemikhali sebekhishwe ngokuphumelelayo emanzini, amanzi ahlanzekile angasetshenziswa kabusha noma akhishwe ngemva kokwelashwa okufanele.Imicu yephepha esele manje ingalahlwa njengezindlela zendabuko zokugaywa kabusha kwephepha.I-pulp iyagezwa, icwengisiswe futhi ifakwe i-bleach ukuthuthukisa ikhwalithi yayo ngaphambi kokuba isetshenziselwe ukwenza imikhiqizo emisha yephepha.
Kumele kuqashelwe ukuthi ukuvuselelwa kabusha kwephepha elishisayo kuyinkqubo eyinkimbinkimbi edinga ubuchwepheshe obuphambili kanye nemishini.Ngakho-ke, kubalulekile ukuthi amabhizinisi nabantu ngabanye abasebenzisa iphepha elishisayo basebenze nesikhungo esigunyaziwe sokugaywa kabusha ukuze kuqinisekiswe ukuphathwa ngendlela efanele kanye nokugaywa kabusha.
Sengiphetha, iphepha elishisayo, nakuba lisetshenziswa kabanzi, linikeza izinselele zokugaywa kabusha ngenxa yokuba khona kwamakhemikhali nokungcola.Ukucutshungulwa kanye nokugaywa kabusha kwephepha elishisayo kuhilela izinyathelo eziningi, ezihlanganisa i-pulping, i-flotation, ukukhishwa kwamakhemikhali kanye nokwelashwa kwe-fiber.Ngokusebenzisa izindlela ezifanele zokuqoqa nokusebenza nabasebenza kabusha, singanciphisa ngempumelelo umthelela wemvelo wephepha elishisayo futhi sikhuthaze izinqubo ezisimeme zokulawula udoti.
Isikhathi sokuthumela: Nov-24-2023