Bring back chlo­rine-free

Port Douglas & Mossman Gazette - - FEEDBACK -

AN AR­TI­CLE in last week’s Gazette refers to “whether Moss­man can be­come the first town in Aus­tralia to trial a chlo­rine-fee wa­ter sup­ply”.

It ap­pears the ques­tion is four years be­hind the times as the whole shire was re­ceiv­ing chem­i­cal free wa­ter in 2007.

In 2004, Coun­cil sur­veyed ratepay­ers about wa­ter sup­ply - giv­ing them var­i­ous op­tions for pu­ri­fy­ing the wa­ter which in­cluded the use of chlo­rine, chloabon­a­tion, ozone, con­ven­tional treat­ment, and mi­cro­fil­tra­tion.

While mi­cro­fil­tra­tion was the most ex­pen­sive of the lot, it was also the most pop­u­lar.

More than half of re­spon­dents wanted clean and chem­i­cal-free wa­ter, and were pre­pared to pay more to get it.

In re­sponse to the sur­vey, the for­mer Dou­glas Shire Coun­cil com­mis­sioned Koch Mem­brane Sys­tems with dis­in­fec­tion pro­vided by Hanovia Ul­tra­vi­o­let Dis­in­fec­tion Sys­tem to com­plete the in­stal­la­tion of ul­tra­fil­tra­tion mem­branes and ul­tra­vi­o­let dis­in­fec­tion sys­tem in its three wa­ter treat­ment plants.

These meth­ods worked by fil­ter­ing wa­ter from catch­ments through tiny per­me­able mem­branes and trap­ping con­tam­i­nants in­side.

The con­tam­i­nants are than re­moved and used for land­fill.

The re­sult was the purest wa­ter in the world, which is ex­actly what the res­i­dents wanted and got in 2007.

Give us back our chlo­rine-free wa­ter: a reader wants a re­turn to the pure so­lu­tion

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