Ukucocwa kwamanzi yinkqubo ebalulekileyo eqinisekisa ukunikezelwa kwamanzi acocekileyo nakhuselekileyo ngeenjongo ezahlukeneyo, kuquka ukusela, iinkqubo zemizi-mveliso, kunye nemisebenzi yezolimo. Enye into eqhelekileyo kunyango lwamanzi ibandakanya ukongezwa kweAluminium Sulfate, eyaziwa ngokuba yi-alum. Le pl idibeneyo ...
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