Chlorine is a better than ...
Published by Mahesh Gadekar, CEO, Geoenvirovision (Testing, Consultancy and Research Organization)
Chlorine is a better than other alternative, however, if recurring and maintainance cost are not issue then opt for UV disinfection just before intake of water.
Apart from this if both treatment costly, you may opt for SODIS but land could be an issue.
#purenvision
Regards,
Mahesh Gadekar