A low content of Ca and Mg in drinking water causes increased health risks. To increase the Ca and Mg contents in the drinking water supplied to the inhabitants of the village of Devičie, a prototype of a fluidized bed recarbonization reactor (RRF) was proposed and tested. A half-burnt dolomite (HBD) was used for the recarbonization. In the RRF, the HBD is kept in buoyancy with the help of water circulation. The capacity of the circulation pump is up to 5 m³ h⁻¹ and the volume of discharged concentrate, which is added directly to the water source, is up to 0.2 m³ h⁻¹. The volume of water circulated between the reactor and the circulating tank is many times higher than the volume of discharged water. In 24 h, the Ca and Mg contents stabilized at an equilibrium value of 80 mg L⁻¹ for Ca and 120 mg L⁻¹ for Mg, which corresponded to the equilibrium of formation and removal of ions from the system. The concentrate was diluted with the water in the reservoir at a ratio of 1:10, and it achieved the desired increase in Mg and Ca contents by more than 10 and 6 mg L⁻¹, respectively.

饮用水中钙和镁含量低会增加健康风险。为了增加提供给 Devičie 村居民的饮用水中的钙和镁含量，提出并测试了流化床再碳化反应器 (RRF) 的原型。半烧白云石 (HBD) 用于再碳化。在 RRF 中，HBD 在水循环的帮助下保持浮力。循环泵的容量高达5 m ³ h ^-1，直接添加到水源的浓缩液排放量高达0.2 m ³ h ^-1. 在反应器和循环罐之间循环的水量是排放水量的许多倍。在 24 小时内，Ca 和 Mg 含量稳定在平衡值，即 Ca 为 80 mg L ^-1 ，Mg 为120 mg L ^-1，这对应于系统中离子形成和去除的平衡。浓缩物与储层中的水以 1:10 的比例稀释，实现了所需的 Mg 和 Ca 含量分别增加超过 10 和 6 mg L ^-1。