Ezinhlelweni ezivamile zokwelashwa kwamanzi, ama-flocculants asetshenziswa kakhulu ama-aluminium nosawoti wensimbi, ama-salts e-aluminium asele emanzini aphathwayo azobeka impilo yomuntu engozini, kanti usawoti wensimbi osele uzothinta umbala wamanzi, njll;ezindaweni eziningi Ekuhlanzeni amanzi angcolile, kuyahluka...
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