If you get the concentration right, yes, basically.
One website recommends that you should put (assuming you start with an unscented and un-dyed bleach that is 5% chlorine) 1 drop (0.05 ml) into one litre of untreated water. Gently shake to mix and leave for at least 30 minutes before drinking. The water should be room temperature (warmish). If the water is cold or looks at all cloudy, double the amount of bleach you put in to treat it.
You can also boil the water (strong boil for 2 minutes), which might be easier -- easier than getting that ratio exactly right, anyway.
Mere chlorine/bleach is not an effective disinfectant against all nasty micro-organisms. If in any doubt, seek professional advice.
A more concentrated dose of chlorine is sometimes recommended if the water is suspected to be especially infested with nasties.
You can also buy chlorine water purification tablets which are in some ways easier to use than trying to find the right type of bleach and measure it out and pour it out correctly without causing some kind of harm.
One website recommends that you should put (assuming you start with an unscented and un-dyed bleach that is 5% chlorine) 1 drop (0.05 ml) into one litre of untreated water. Gently shake to mix and leave for at least 30 minutes before drinking. The water should be room temperature (warmish). If the water is cold or looks at all cloudy, double the amount of bleach you put in to treat it.
You can also boil the water (strong boil for 2 minutes), which might be easier -- easier than getting that ratio exactly right, anyway.
Mere chlorine/bleach is not an effective disinfectant against all nasty micro-organisms. If in any doubt, seek professional advice.
A more concentrated dose of chlorine is sometimes recommended if the water is suspected to be especially infested with nasties.
You can also buy chlorine water purification tablets which are in some ways easier to use than trying to find the right type of bleach and measure it out and pour it out correctly without causing some kind of harm.