Ukusetshenziswa kobuchwepheshe be-membrane ye-ultrafiltration ekwelapheni amanzi okuphuza Ngokuthuthuka okuqhubekayo kwenqubo yokuya emadolobheni, inani labantu basemadolobheni liye lagxila kakhulu, izinsiza zasemadolobheni kanye nokuhlinzekwa kwamanzi asekhaya kuya ...