Food science technology, Sciences technologies alimentaires, Nutrition, obesity, metabolic disorders, Nutrition, obésité, maladies métaboliques, Sciences exactes et technologie, Exact sciences and technology, Terre, ocean, espace, Earth, ocean, space, Sciences de la terre, Earth sciences, Minéralogie, Mineralogy, Silicates, Géochimie, Geochemistry, Géochimie de l'eau, Water geochemistry, Carbonate, carbonates, Carbonato, Roche carbonatée, carbonate rocks, Roca carbonatada, Roche ignée, igneous rocks, Roca ignea, Roche sédimentaire, sedimentary rocks, Roca sedimentaria, Calcaire, limestone, Calcáreo, Calcium, calcium, Calcio, Cinétique, kinetics, Cinética, Conductivité électrique, electrical conductivity, Conductividad eléctrica, Dioxyde carbone, carbon dioxide, Dolomite, dolomite, Dolomita, Etude laboratoire, laboratory studies, Hydrochimie, hydrochemistry, Hidroquímica, Magnésium, magnesium, Magnesio, Milieu eau douce, fresh-water environment, Medio agua dulce, Modèle, models, Modelo, PH, pH, Porphyre, porphyry, Pórfiro, Potassium, potassium, Potasio, Sodium, sodium, Sodio, Solution, and solution
The problem concerning the formation of the natural water chemical system has been tacked several times by scientific researchers and the Literature acknowledges this. As regards the field search for water, we noticed that several situations are not sufficiently considered, and therefore decided to create a laboratory model so as to approach reality more correctly. The basi consideration is the following: rain water runs over the rocks of the rocky matrix attacking the crystals of which the latter is formed by means of CO2 or by directly dissolving its salts. Each of the two situations can be described by equations which anyhow must be experimentally researched. The following parameters were adopted for experimental modeling: closed and gas-tight water circuit; naturally pure granular ock structure, with a known specific surface; accurately thermostated and gas-tight water recycling circuit; continuos monitoring of specific electric conductivity and of pH ; daily dosage of Na, K, Mg, Ca; plotting ofdata on computer-drawn curves obtained with two different programs. The trials lasted about 30 days each. The rocks used were limestone, dolomite and porphyry. It was observed that the growth of residue with time is a logarithmic function when correlated to specific electric conductivity; that the pH trend is strongly affected by the dissolution of alkaline ions and is therefore buffered by the dissolution due to the aggression of C02; that the concentrations in time of the ions observed occurs according to logarithmic curves when the ions are bonded in a reticule and are therefoare generated by a chemical aggression, while instead the directly soluble ion concentrations show straight-line growth intime. Overall, the curve grows according to a function that is the slim of the concentration increase curves of each single ion, driven by CO2 and by their reticular structure. The conclusions which may be derived from this type of study, which lasted a few years, allow to foresee for a specific type of mineralogically knoxn rock the approximate time range in which the water will no longer be able to modify its chemical system. These will therefore be the waters which in previous works we called terminal waters, naturally unstable after coming out of the spring The considerations regarding the modeling allow to foresee, at a first approximation, the formation times of rapid-formation natural waters.