The role ofthe plants providing water is not restricted to the collection of water from areas where abundantly available and then distribution to the consumer. In reality, it involves a serious commitment to the guarantee of waterwhich is high quality.
For this reason, drinking water facilities make use of conditioning plants which are equipped with chemical lab oratories that perform all relative analyses whichthen allow the plantto properly treat the drinking water before distribution to the consumer.
The analyses normally made by the chemical laboratory concern parameters such as pH, conductivity, turbidity, residual chloride, and most importantly, the concentration of organic substances.
This latter analysis can be carried out by the perman¬ganate oxidation known in Italy as the KubeI analytical method which is a typical laboratory analysis- easy to perform withouttheuse of instruments.
Drawbacks however include the preparation time required and the resulting limit of the number of possible daily analyses.
The time period required from sample extraction to results ofthe analysis is considerable.
There are process instruments on the market which are able to automate the analysis of the organic substance content (TOC) in water. These instruments, if placed in strategic points within the plant, can be¬come a very important survey networkforthe manage¬ment ofthe conditioning treatment.
Water Monitoring in drinking water plants - The Comparison Between On-Line TOC Analysis and the Permanganate Oxidation Method