Nazarovа V. Reducing the level of workplace contamination during lead-acid accumulator processing

The thesis deals with solving the urgent scientific and technical problem of the workplace pollution abatement in the process of lead-acid recycling by establishing the relationship between the conditions of the recycling process and harmful substances emission, determining the electrolyte solution properties and developing on this basis the technical options for lead-acid batteries recycling. There has been experimentally studied the composition of harmful substances at the stage of the electrolysis in the process of lead-acid batteries recycling. The dependences of the harmful substances emission intensity on the conditions of the process (electrolyte composition and current density) has been determined. On the basis of the data obtained in the process of study the effect of organic impurities to the electrolyte on the harmful substances emission the optimal electrolyte composition for lead-acad batteries recycling has been proved. The criterial dependence of harmful substances emission in electrochemical operations, which allows to calculate the intensity of the emission from the surface of solutions with the inputs of organic additives contained in the electrolyte has been improved. Keywords: occupational safety and health, safety parameters, lead-acid battery, electrochemical processing, fluoride and lead emission intensity, electrolyte composition.