Indlela ejwayelekile yokwelashwa kwamanzi isebenzisa i-coagulation, sedimentation, filtration nezinye izinqubo. Lezi zinqubo zingahlanza umthombo wamanzi, kepha umthombo wamanzi uqukethe nezinto eziphilayo kanye nezilwanyana ezincane. Okwamanje, izindlela zokwelashwa kwamanzi nezokubulala amagciwane zifaka i-chlorine gas, i-bleaching powder, i-sodium hypochlorite, i-chloramine, i-ultraviolet light ne-ozone. Imodi ngayinye yokubulala amagciwane inezici ezihlukile.
I-chlorine disinfection yinhle, kepha ikhiqiza ama-carcinogens. I-Bleaching powder ne-sodium hypochlorite kulula ukubola, okushintshashintshayo, umphumela wokuvalwa kwe-chloramine kubi, ukubulala amagciwane nge-UV kunemikhawulo, okwamanje i-ozone iyindlela ekahle yokubulala amagciwane.
Njengenqubo yokwelashwa okujulile, i-ozone inethonya elinamandla lamagciwane. Ingabulala izinhlobonhlobo zamagciwane kanye namagciwane, futhi ibulale amagciwane ayingozi njenge-Escherichia coli, iStaphylococcus aureus, izinhlamvu zebhaktheriya, i-Aspergillus niger nemvubelo.
Ngokungafani nezinye izindlela zokubulala amagciwane, i-ozone iphendula ngamangqamuzana egciwane, ingene ngaphakathi kwamaseli, isebenze odabeni olumhlophe ne-lipopolysaccharide, futhi iguqule ukungena kwamaseli, okuholele ekufeni kwamaseli. Ngakho-ke, i-ozone ingawabulala ngokuqondile amagciwane. I-ozone inenzuzo enkulu yokuthi ayikho insalela. Ngemuva kokubulala amagciwane, i-ozone ibola ibe yi-oxygen, engeke idale ukungcoliswa okwesibili.
Izinzuzo ze- ozone kwenzalo yokwelashwa kwamanzi:
1. Inomphumela oqinile wokubulala kuma-microorganisms ahlukahlukene we-pathogenic;
2, i-disinfection esheshayo, ingabola ngokushesha izinto eziphilayo emanzini;
3. I-ozone inezinhlobo eziningi zokuzivumelanisa nezimo namandla e-oxidation aqinile;
4, akukho ukungcoliswa kwesibili, ukubola kwe-ozone nokubola kube yi-oxygen;
5, ngeke ikhiqize i-trihalomethane neminye imikhiqizo ye-chlorine ye-disinfection;
6. Ngenkathi ukubulala amagciwane, kungathuthukisa isimo samanzi futhi kukhiqize ukungcola kwamakhemikhali okuncane.
7. Uma kuqhathaniswa nezinye izindlela zokubulala amagciwane, umjikelezo we-ozone disinfection umfishane futhi uyonga kakhulu.
Isikhathi Iposi: Jul-27-2019