Derco, J.; Šoltýsová, N.; Kurák, T.; Vajíčeková, A.; Dudáš, J. Modelling of Drinking Water Recarbonization in Fluidized Bed Reactor. Processes2023, 11, 3209.
Derco, J.; Šoltýsová, N.; Kurák, T.; Vajíčeková, A.; Dudáš, J. Modelling of Drinking Water Recarbonization in Fluidized Bed Reactor. Processes 2023, 11, 3209.
Derco, J.; Šoltýsová, N.; Kurák, T.; Vajíčeková, A.; Dudáš, J. Modelling of Drinking Water Recarbonization in Fluidized Bed Reactor. Processes2023, 11, 3209.
Derco, J.; Šoltýsová, N.; Kurák, T.; Vajíčeková, A.; Dudáš, J. Modelling of Drinking Water Recarbonization in Fluidized Bed Reactor. Processes 2023, 11, 3209.
Abstract
Calcium and magnesium are important not only for human health, but also for reducing problems related to the corrosive and aggressive effects of soft water on drinking water distribution materials. Experimental and mathematical modeling of the recarbonization process aimed at increasing the content of these biogenic elements in water was carried out using the novelty of a continuous laboratory and pilot scale fluidized bed reactors. Water remineralization using half-calcined dolomite (HCD) and carbon dioxide was used. The influence of operating conditions Q(CO2), freshwater inflow and HCD dose on quality indicators of treated drinking water (c(Ca2+), c(Mg2+), c(Ca2++Mg2+) and Ca/Mg) was studied. The results show that the concentration of Mg2+ is more significantly affected by the amount of HCD in the system and the flow of CO2. The influence of freshwater inflow on the Mg2+content is to a lesser extent. At a constant CO2 flow, therefore, as the tap water inflow increases, the Ca2+ content decreases and the Mg2+ content increases, which has results in a decrease in the Ca/Mg molar ratio. However, the Ca/Mg ratio can be effectively controlled by adding an appropriate amount of HCD at certain time intervals. Overproduction of ions is easily controlled by CO2 flow.
Keywords
Ca; drinking water; experimental and mathematical modelling; fluidized bed; HCD; Mg; water quality improvement
Subject
Environmental and Earth Sciences, Water Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
