Дослідження процесів мінералізації питної води керамічними мінералізаторами для систем очищення побутової води

Abstract

The role of fresh water in the formation of the state is considered and it is determined that proper management of water resources is a critical component of increasing the standard of living of the population of all countries of the world, both from the point of view of the development of the industrial complex of the state and ensuring the health of the nation. However, the growing level of pollution of water bodies, significant deterioration of the water infrastructure of cities and sometimes the impossibility of restoring it due to active hostilities lead to a significant decrease in the quality of drinking water in Ukraine. An effective solution to this problem is the use of household filtration systems. Among their significant variety, the most widespread are reverse osmosis systems that can effectively purify water from heavy metals, soluble salts of viruses and microorganisms. Their main disadvantage is the extremely low salt content of 15/20 mg/l, which requires domineralization up to 200 mg/ml. Existing systems of premineralization of drinking water are characterized by exceeding the limit values of salt content (saline) or instability of the level of mineralization (mineral). That is why the urgent task is the development of innovative mineralizers for drinking water with prolonged action based on non-cost domestic raw materials and the study of mineralization processes. The obtained data on the salt content of the solution after aging with mineralizers made it possible to confirm the assumption of a significant influence of the ratio of the surface area of the mineralizer to the volume of water on the rate of the leaching process. With a ratio of 0.4 cm2/ml, the minimum recommended level of salt content is achieved after 7 hours of exposure at a stable pH level (8.15/8.70). A study of the effect of cyclic water replacement on the level of salt content indicates minor changes in its values when held for one (71.1–79.0 mg/l) and three (136.9–140.3 mg/l) hours, which may indicate prolonged action mineralizer. The total hardness of water after 24 hours of exposure to a mineralizer is 1.55 mmol/l, the concentration of Ca²⁺ is 19 mg/l and Mg²⁺ is 7.2 mg/l, which meets the requirements of regulatory documents.