Articles

The article describes the physical and mathematical meaning of the pH value of water, the conditions of corrosion processes with hydrogen depolarization, and the article also offers a hypothesis about the causes of self-ionization of water. The water molecule consists of two ions, the hydrogen cation (H+) and the hydroxide anion (OH–), which under normal […]

Ivan Tikhonov Annotation The article discusses how impurities in water can affect the quality of ice. Of course, not ice for drinks is meant, but ice for sporting events.   The analysis of existing schemes of water preparation for ice making leads to the following conclusion: the lower the salinity of water is and the […]

Ivan Tikhonov The article presents a technique for removing boron from water using the technology of reverse osmosis water desalination. The calculation of two schemes was performed in the ROSA 9.0 program. The first scheme assumes minimal capital investment in a water treatment plant. The second scheme is characterized by the minimum amount of generated […]

Ivan Tikhonov Make-up water consumption for a wet cooling tower is determined by the makeup water chemistry. Heat removal in a wet cooling tower occurs due to the evaporation of a part of the water in the cooling tower. As a result of the evaporation, heat is removed from the cooling water. This process is […]

Ivan Tikhonov The article discusses the main methods of water purification for drinking and household needs. Household centralized and decentralized water supply networks are accepted as a source of water supply.  Recommendations on the selection of water treatment equipment and materials are given. It is no secret that the drinking water that enters our home […]

Ivan Tikhonov Cooling tower, reverse osmosis, water acidification This article is devoted to the problem of removing bicarbonate from natural water. Bicarbonate can be removed from water by converting it to carbon dioxide. In this case, part of the carbon dioxide dissociates in the water and reduces the pH value of the water. When the […]

Ivan Tikhonov The article deals with the problem of operational control of the process of ion water softening. The dependence of the electrical conductivity of water on its hardness value for the water softening process is presented. The article presents a control system for the water softening installation based on programmable relay. The results of […]

Ivan Tikhonov Almost completely desalinated water is required to be used for feeding steam boilers with the pressure of more than 14 MPa. The salt content of feed water in terms of Na should be no more than 50 mcg/kg, and for direct-flow boilers no more than 20 mcg/kg. The pH value of such water […]

Ivan Tikhonov The article presents a method for calculating the pH value, which corresponds to the saturation of water by calcium carbonate and compares this pH value with the pH value obtained by calculating with Langelier saturation index and Stiff & Davis index. Corrosion and scale formation are the main problems in the usage of […]

Tikhonov I.A. The presence of dissolved corrosive gases CO2 and O2 in water causes corrosion of equipment and pipelines. As the water temperature increases, the mobility of oxygen molecules increases, and the corrosive aggressiveness of water increases. The problem of removing oxygen and carbon dioxide from water is solved mainly in two ways. It is […]