In the modern world with rapidly developing technologies, the quality of feedstock and related products is becoming increasingly important. Most often water is used in production processes.
Water can act as a raw material for the final product or accompany the process (circulating water cooling, heating, conditioning). Therefore, enterprises of various industries are faced with the task of obtaining water of a certain quality.
Almost all cooling, heat supply and hot water supply systems have the same problem – corrosion and deposition of insoluble salts on the internal surfaces of pipelines and equipment.
The traditional method of water treatment – softening with resins – is too expensive, and also has some drawbacks – high consumption of water and salts, alkali and acid, bulky and expensive equipment, a significant amount of wastewater. Its maintenance requires professional personnel and constant laboratory monitoring.
An alternative to softening is chemical water treatment. Chemical water treatment differs from the method of water softening in that scale-forming elements are not removed from the water supply equipment, and their scale-forming properties are eliminated with the help of specially selected compounds.
Thus, instead of replacing scale-forming calcium and magnesium cations with sodium or hydrogen cations, a small amount of a scale inhibitor is introduced into the water in a small quantity, which prevents hardness salts from being deposited on the heat exchange surfaces in the form of scale.
In the case of the correct selection of chemical treatment, it is possible to achieve a gradual destruction of old deposits on heating surfaces, pipelines and equipment. Thus, chemical water treatment is an effective means of removing and preventing scale and scale-forming elements.
An important point is the correct selection of products for water treatment or the whole composition of chemicals in accordance with the composition of the water, the maximum temperature of its heating, the presence of salt deposits and corrosion processes. In addition, it is necessary to accurately dose the product in proportion to the flow rate of make-up water.
Water treatment for steam boilers includes chemical treatment of water before it is supplied to steam and hot water boilers. Using chemical water treatment, problems such as scale formation and corrosion processes (oxygen and carbon dioxide corrosion) of the internal surfaces of boilers, steam and condensate pipelines, heating systems and hot water supply can be avoided.
Almost all the chemical products used to carry out chemical water treatment are complex. This means that these chemical reagents are capable of correcting several indicators of water at the same time: the pH value, the formation of scale from dissolved salts, as well as the content of dissolved carbon dioxide and oxygen.
