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Yintoni sizenza ukukhetha ngalo lenkxaso yokuhlola: I-Dibutyltin
I-chemical engxengeleko, idibutyltin, ifunekayo kumandla okanye ezikhoyo zethu zonke izinto. Iya nge-sobukhulu sokuqala sokubani-buthiweyo esingazangeleka ngokuba yinkululo yokuthenga nokuhlola. Inikwe emakhiweni wezindaba, amaphrofile nokuziphatha kakhulu eziningi izindlela. Ngokugcina lokusebenza kakhulu, idibutyltin inikwe (njenge-residue yesithelo) ekhaya nezilondolozi zemali kwaye kufuneka kuhlanganise imibuzo yokuthi iphumeleyo lomphilo wabantu.
IDibutyltin ingalimi ngokuthi kuyiqhutywa ngamandla yakhe yokuphazamiseka kwiqhobo lezilungu zomdlalo nokulandelana. Ukuphazamiseka kokulandelana kwedibutyltin kukhethwe ngenqanawe yazo izincazelo ezimbili ezifana namandla akhe amaqhinywa ukuba kuhluke umphathi wemali weziqhobo zezinto eziphumeleyo, njengokubona njengeendocrine disruptor okugcina imiphumela yesikhephe sesikhathini sokugcwalisa iindlela zokubuya kwezilungu ezimdlalayo, abantu kunye nezilungu. Umlomo wesikhephe ususwa ngemidlalo emasakweni esizenzekelayo kunye nezilungu lapho ukuhlala kwayo, lokunyelelwa ukuba isimo sasukele kumthombo wesikhephe kunye nemithombo yezilungu. Ngokushesha, idibutyltin ikhishene ukuba ibeke izindima kunye nokugcina umkhuhlane wesikhephe kumahlaba apha ebizwa ngokuba ifumanekayo indawo yokudla zakwamanzi (amasheya amaameriki kunye namakhobe) efanelekayo ngokukhangelwa kwindawo yokudla zakwamanzi.
I-Dibutyltin useyiswe kumqinge lwemali kunye nokuba angaphandle kwezilondolozi zokudla ngamandla okubanjwa ngaphandle kokuthi abantu babekwazi ukuphakamisa. Nangona i-Dibutyltin akwazi ukwenzeka kwindawo yokudla yezifish kunye nezishellfish kunye nokuziphatha kwezinja ezinikezeli abantu bazoba ukuya. Umlomo wenqanawe ungene amandla angaphandle kwezinto ezizange zikwenze imithombo ezingaphambili lokulanda kusetyenziswa kwabantu, ngokusho ukuba zihlanganise izinto esingazange zikhululeke kwi-seafood njengokuhlela kwezindlela, ukuhlukaniswa kwendodakazi kunye nokuhlukaniswa kweendodana. Ngokushesha, i-Dibutyltin angaphandle kunye ngenxa yalokho ibheke kwindawo yokudla yesiHlanu esiyindoda asenziweyo phakathi kwesigidi.
Useyiswe ngezinye izindlela ezimbini njenge-ukuchaphuka, ukusethela kunye nokusebenziswa njengamanje, amaplastics kunye namathextiles. Kodwa ngokuba kukho umthombo wencane lokunqumelela kunye nokuba kungaba imiphumela yomthombo wesixa esiqale ukufika kuyo, abantombazane bahlola ukufuna izinto ezintsha ezazibuyisela i-Dibutyltin lezi zinto. Izinto ezintsha ezityenziswa zinikeza ukuba zingeneyo umthombo wesixa kunye nokuba zingabanjwe ngokuphambili kwezinto ezininzi zokugcina indalo kunye nokugcina umthombo wesixa wezintshonalanga.
I-Dibutyltin iyizuzwana lokugcinwa kunye nokusetyenziswa kwiimbizo ezininzi zokuxhasa ngemisebenzi yezintsha. I-EU, ngokuvamile, wathathela i-Dibutyltin kwiimheni ye-antifouling yesithathu semakhulu ngomhla we-2003 xa kuteta ukuthi ingena amagama amadala emihlaba. Zingaphambili izwe elinnye zazithatha ukuthi i-Dibutyltin akhiwe, kunye nesixhumanisi esisodwa sokuthiwe kwisebelelo. Ngokuqondisiso, kuhluke ukuthi kufanele sithathe amandla angaphakathi kunye neziqheme ezindaweni eziningi ze-Dibutyltin xa ithunyelwe ngokubanzi kumhlaba kunye nokuphila kwabantu ngalokhu okuyintoni.
Siyinqaba elincinci labo abasebenzela amanye amagama kweDibutyltin eChina kunye nomncedzo omkhulu wokuqeqeshwa kumhlaba kunye namagama amaculiweyo. Umthengisi wethu wesikhashana nezindlela ezidingekayo zihlola ukuthi babuyelele abantu bakho amaxhobo asebenzayo angqamukelanga kunye nokuhlanganiswa komlayezelo womphilo kunye nokuthi amaxhobo amaculiweyo akhangeleke kakhulu, ukuba siyakwazi ukuhambisana nendawo yakho yomphilo yokuthi siyithola amandla amakhulu.
Kumkhonto wethu kukho amagqirha nezivakalisi ezinomsindo zokuthuthela kwiindlela yamakhomphoyithi ebutyleyo nokhothyleyo. Siqinisekisa ukuba umthwalo ubheke ngokuqinisekileyo usetyenziswa sethu. Imininingwane yesiXhosa sethu siyaziwa ngenxa yokuba isiqephu esisodwa sibheka ngokubona, isiqephu esijulileyo sibheka ngokubona, kunye nomthwalo osenziwe ngaphambi kokuthutha okuhluke iziphumo zokusebenza ukuze sizifake amaxwebhu angaphambili, abanjani kunye nokuphucula ngokukhangelwa ngokuthi kuhluke iindlela ezindala ezincedisiweyo.
I-Ningxia Lingshi New Material Technology Co Ltd ifuneka kwi-park yeNingxia Ningdong New Materials Park yemikhomphoyithi yaseNingxia eyenza imisebenzi yokuthutha nokuthutha kwiindlela yobutyltin no-octyltin kunye nemigama emazipheneyo yamakhomphoyithi. I-Ningxia Lingshi igqwetshi lwendawo yokugcina Nantong Haotai Products Chemicals Co Ltd kunye nobranch ofactory Shandong Lingshi New Material Co Ltd. Iindlela zakho zihlala kwiindlela zokufinyelela, PVC, PU, uphahla, ukuhlola kwesithathu, kunye nokuhlola kwe-glass coating.
Iindlela zokuphumula kwezinto ezincinci ngamabhiyo amacayishoni, TOT, TBT kunye nondawo yobutile obunene, zaziphumelela umthengiso wendawo ePhulandithi naseMereka, zazidinga isiloshini sesibhenxeleso sasethu ngokwesikhashana sokugqibela, zazifinyelela uhlobo olungaphezu kwesintsha esingaphakathi seChina kusetyenziswa sombhiyo wesintsha, kunye nokuthola ukubhedliselela ukuhlukomelela kwezindawo zesintsha lesiSayina. Ngemvula eminingi weziqhaza nezikhono, izinkozo zethu azinakuvumelana nokuhlonipha imali yesintsha kodwa zizivumelelwa nokuthi zicacise Europe naseMereka naseNguni Labantfu, Emafura Edeni, Afrika kunye namaxesha angahlukileyo.
