EZONA IMITHETHO EQHELEKILEYO: Unxunguphalo I-Chlorine Dioxide pH Iyonke iNitrojeni IManganese Aluminiyam Cyanide Sulfidi Chroma Iyonke iKlorini COD I-Amoniya yeNitrojeni Iklorini esebenzayo I-Fluoride Nitrite Nitrogen Hexavalent Chromium Iklorini yasimahla Ichlorite Iyonke iPhosphorus Intsimbi I-ozone I-chloride I-Oxyzen esebenzayo
