UV is a very effective ...

Published by

UV is a very effective disinfectant, provided that  UV units are properly sized and maintained. However, I have concerns about using it for small communities for these  reasons: (1) no residual disinfection is provided by UV. Thus, chlorine (in smaller doses) will still be needed if there is a distribution system; (2) UV lamps require periodic replacement and are also subject to failure before their theoretical lifetime expires. (3) UV units may be damaged by voltage fluctuations which may occur in remote areas. Lamps are not readily available, while chlorine disinfectants. particularly NaOCl  and CaOCl are much easier to find. Have you considered on-site hypochlorite generation from a salt-water solution?

1 Comment

Thanks,
smaller chlorine doses is an option to keep net clean, but I don't know if somebody has experience about periodically bluff of chlorine to disinfect distribution pipes, what will be the best alternative?
I propose frequently microbiological tests to check treatment quality.

Local government are looking for an easy treatment that evicts product transportation and water taste to the supply tanks, and also no residues, that's why sodium or calcium hypochlorite is not an option (because NaOCl is in use nowadays)

Published by

Permalink