ИССЛЕДОВАНИЕ ПРОЦЕССА ОЧИСТКИ ВОДЫ С ПРИМЕНЕНИЕМ ФЛОКУЛЯНТА «АММИАЧНЫЙ» НА ПРИМЕРЕ МОДЕЛЬНЫХ СИСТЕМ СТОЧНЫХ ВОД

Abstract

The presented material shows the results of studies on the use of polyacrylamide flocculant «Ammonia» for flocculation treatment of model wastewater solutions. The role of the physico-chemical method of industrial wastewater treatment with the use of high-molecular flocculants is shown. The values of the effectiveness of the described research method are given. A brief description of flocculants is presented, the features of the use of components for various industries, such as chemical and petrochemical, are considered. The class of polyacrylamide flocculants of the AK-631 type used as an object of research is briefly characterized. In the course of the work, examples of various types of model systems (activated carbon, calcium carbonate, kaolin, quartz sand) are given. The parameters characterizing the flocculation process are described. The basic equations for calculating the characteristics of the process are given. In the course of the work, the particle sizes of the dispersed phase were determined, and the optimal concentration of polyelectrolyte was calculated. Graphical dependences confirming the experimental values of the quantities are considered. The influence of the nature and concentration of (poly)electrolyte on the flocculation rate of activated carbon suspensions of BAU and quartz sand is investigated. The values of turbidity, chromaticity and activity of the polyelectrolyte under consideration are calculated. Graphical dependences of the activity value on the volume of the injected reagent are given. Similar values were determined for polyacrylamide flocculants of the AK-631 type (A-930 and A-1510). The effect of the concentration of the substance introduced into the system on the activity of the component is described. The given values are presented in the form of graphical dependencies, a comparative analysis is carried out. The rates of clarification of suspensions in the presence of polyelectrolyte are investigated. Kinetic clarification curves of the suspensions under consideration are given. The values of the initial deposition rates of particles of dispersed phases for all considered polyacrylamide flocculants are calculated. The effect of the initial particle deposition rate on the flocculation activity of polyacrylamide flocculants with an increase in their concentration is described. The process of purification of the model system from zinc ions for the components under consideration is considered. Graphical dependences of the efficiency value on the volume of the injected substance are presented. A comparative analysis of the use of the component with polyacrylamide flocculants of the AK-631 type (A-930 and A-1510) was carried out.