66-68 WATER TECHNOLOGY:SPN Master pages 18/5/09 17:56 Page 2
spnfeature
Swimming Pool News reports from the three day
International Pool and Spa Conference at the Royal
College of Physicians’ headquarters in London
Chlorine
alternatives
GET LUKEWARM RESPONSE
T
he third International Pool and Spa
Conference ended its three days in
London with enthusiasm for
improving general water treatment
methods but declaring less enthusiasm for
the development of chlorine alternatives in
the treatment of swimming pool water.
The presentation of a series of high
quality papers from all over the world
touched on the headline issues of the
industry of improving conventional water
treatment and also finding an alternative to
chlorine disinfection.
The conference encouraged the first
aspiration but not the search for a chlorine
alternative.
Speakers from Germany and Denmark
spoke of the application of membrane
filtration to pools. There may be a financial
price to pay – upfront and in running costs
– but some delegates at least see
membranes replacing sand eventually.
As for alternatives to chlorine, Dutch
water scientists reported on their ‘multi
criteria analysis’ of 12 different disinfection
systems. Some – copper/silver ions for
example – fell at the first hurdle: they
didn’t pass the microbiological
effectiveness test.
Taking every available factor into
account, the best systems all involved
sodium hypochlorite, mostly with UV or
ozone. This section ended with insider
descriptions from the Olympic Delivery
Authority and the water treatment
designers, of the challenges involved in
building the aquatic centre for 2012.
The conference, organised by the Pool
66 swimming pool news JUNE 09 Digital edition available at www.swimmingpoolnews.co.uk
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