WATER
The Water Cycle
Water in a Pool
Water compared
Pool Processes

POOL PROCESSES
Acid
Filters
Coagulant
Backwashing

CHEMISTRY IN OZONE
Deozonation

DISINFECTION
Hypochlorite
Chlorine
pH
Organic chloramines

NEW IDEAS
Fringe Treatments
Safety
References

Hannah Morgan, University of Bristol, School of Chemistry, hm9921@bris.ac.uk

A Carbon filter, used to remove the ozone from the water

All ozone must be removed once it has purified the water. This is done by passing the water through one of two common media. The carbon also removes any organic contaminants.

GAC, granular activated carbon is most commonly used. It has a microporous surface of 1000m2/g, with a bed depth of 0.5m. It is produced by steam treatment from a coconut shell, coal or wood.

Another type used is unactivated heat treated anthracite or coal with a lower adsorbant surface area of less than 500m2/g, the bed depth is 0.7m. This does make it less efficient than GAC.

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