1.I-Wastewater decolorization ezindaweni zokuhlanza indle
2.Ukuhlolwa kokuchithwa kwamanzi angcolile
3.Ukwakhiwa kwamanzi angcolile kobunjiniyela bakamasipala
4.Ukushintsha umbala kokuphrinta nokudaya amanzi angcolile
5.Ukuhlolwa kokususwa kombala kwamanzi angcolile
6.Ukususwa kwe-fluoride ekuhlolweni kwamanzi angcolile
Isikhathi sokuthumela: Nov-28-2024