Unyango lwamanzi amdaka yinkqubo ebalulekileyo yokuqinisekisa amanzi acocekileyo nakhuselekileyo asetyenziswa ngabantu kunye nokukhusela okusingqongileyo. Iindlela zemveli zokunyanga amanzi amdaka zixhomekeke ekusebenziseniiikhemikhali ezibangela ukuxinana, njengeetyuwa ze-aluminiyam kunye ne-iron, ukususa izinto ezingcolisayo emanzini. Nangona kunjalo, eziiikhemikhali zokucoca amanzi kwimizi-mvelisozibiza kakhulu, zisebenzisa amandla amaninzi, kwaye zinokuba nefuthe elibi kwindalo esingqongileyo.
Ngethamsanqa, kuye kwavela isisombululo esitsha kwicandelo lokucocwa kwamanzi amdaka –iipolyamines(PA). Iipolyamines liqela leekhompawundi zendalo ezifumaneka ngokwendalo kwiiseli eziphilayo kwaye zineempawu ezikhethekileyo ezenza ukuba zisebenze kakhulu kunyango lwamanzi amdaka. Ukusetyenziswa kweepolyamines kuguqula icandelo lonyango lwamanzi amdaka kwaye kubonelela ngesisombululo esizinzileyo nesisebenzayo kwimingeni yongcoliseko lwamanzi kunye nokunqongophala kwawo.
I-China yenye yezona nkampani zithengisa kakhulu iikhemikhali zonyango lwamanzi ehlabathini, kwaye imfuno yayo ikhula ngokukhawuleza yezisombululo zonyango lwamanzi amdaka ezisebenzayo nezifikelelekayo. Ukusetyenziswa kwee-polyamines kushishino lonyango lwamanzi amdaka e-China kuyanda ngenxa yokusebenza kwazo okuphezulu kunye nokusebenza kakuhle kweendleko xa kuthelekiswa neekhemikhali zemveli.
Iipolyamines zineengenelo ezininzi kuneekhemikhali zonyango lwamanzi zemveli kwimizi-mveliso. Enye yezona nzuzo ziphambili kukuba zinomdla kakhulu kwiintlobo ngeentlobo zongcoliseko ezifumaneka emanzini amdaka, njengeentsimbi ezinzima, iidayi, kunye neekhompawundi zendalo. Iipolyamines zinokuqina kwaye zidibanise ezi zinto zingcoliseko ngempumelelo, nto leyo ebangela ukuba zisuswe lula emanzini. Le nkqubo iphucula kakhulu ukusebenza kakuhle kwenkqubo yokucoca amanzi amdaka, nto leyo ekhokelela ekuphumeni kwamanzi amdaka okusemgangathweni ongcono.
Enye inzuzo yeepolyamines kukuba imfuneko yazo ephantsi yedosi. Iipolyamines zinokufikelela kwinqanaba elifanayo lokususa ungcoliseko njengeekhemikhali zemveli ngobuninzi obuncinci, nto leyo ekhokelela ekongeni kakhulu iindleko kwizityalo zonyango lwamanzi amdaka. Ngaphezu koko, ukusetyenziswa kweepolyamines kunokunciphisa ubungakanani bodaka oluveliswa ngexesha lenkqubo yonyango, nto leyo enokunciphisa ngakumbi iindleko zokusebenza.
Ukuqukumbela, ukusetyenziswa kwePA Ukunyanga amanzi amdaka kuguqula icandelo lokunyanga amdaka kwaye kubonelela ngesisombululo esizinzileyo nesisebenzayo kwimingeni yongcoliseko lwamanzi kunye nokunqongophala kwawo. Ngenxa yemfuno ekhulayo yezisombululo zokunyanga amanzi amdaka ezisebenzayo nezifikelelekayo eTshayina, ukusetyenziswa kwe-polyamines kushishino lokunyanga amanzi amdaka kulindeleke ukuba kwande kwiminyaka ezayo, kubonelela ngendawo ecocekileyo nekhuselekileyo kubo bonke.
Ixesha lokuthumela: Epreli-03-2023