Effect of blending two treated waters on the organoleptic profile of Barcelona's supply

摘要

Barcelona's drinking water has two distinct origins: the Ter and Llobregat rivers supply the city in a ratio of 35/65. The organoleptic quality of the two waters is very different. Treated water from the Llobregat sometimes has organoleptic problems, whereas the quality of treated water from the Ter is much better. The aim of this paper is to study the effects of blending the two types of water and to determine the best blend of the Ter and Llobregat treated waters in terms of flavour and odour, using the A/not A test and the Flavour Profile Analysis. The optimum blend of Ter and Llobregat water is the blend that contains the highest percentage of Llobregat water without any appreciable loss of the characteristics of Ter water.