Depends on what you're trying to purify it from...
a method of separation purify water
Tap water is not a pure substance because it is mixed with chemicals that purify it and if it was from the ground it has naturally occurring minerals mixed in it.
She used a water filter to purify the drinking water before consuming it.
distillation
Yes, Solar Energy can be collected to purify water the same way other types of energy can be used.
It is used to purify water.
by the use of chlorine
Purification
Yes. Used instead of chlorine to purify water.
coagulation of mud particles
It takes a while to purify water