Re: [RML] Re: Filtering tap water (was unhappy xmas)

Adrian Tappin (tappin at powerup.com.au)
Wed, 27 Dec 2000 05:42:30 +1000

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At 05:43 26/12/00 +1000, Murray wrote:
>Hi,
>
>Why don't people just use an activated carbon filter on the tap water as
>it goes
>into the tank ?
>
>Correct me if I am incorrect, but won't this remove chlorine and chloramine ?

Activated carbon has been used for many years and is very effective in
reducing or removing chlorine. However, if use for chloramine removal
activated carbon will only remove the chlorine part, but leave the ammonia
still present in the water. Passing chloraminated tap water through
activated carbon results in the following reaction:

Activated Carbon + NH2Cl + H2O -> Ammonia (NH3) + H+ + Cl-

However, A new specialty carbon called catalytic carbon is reported as
being very good at removing chloramine.

Adrian.
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At 05:43  26/12/00 +1000, Murray wrote:

Hi,

Why don't people just use an activated carbon filter on the tap water as it goes
into the tank ?

Correct me if I am incorrect, but won't this remove chlorine and chloramine ?

Activated carbon has been used for many years and is very effective in reducing or removing chlorine. However, if use for chloramine removal activated carbon will only remove the chlorine part, but leave the ammonia still present in the water. Passing chloraminated tap water through activated carbon results in the following reaction:

Activated Carbon + NH2Cl + H2O -> Ammonia (NH3) + H+ + Cl-

However, A new specialty carbon called catalytic carbon is reported as being very good at removing chloramine.

Adrian. --=====================_797212==_.ALT--