Effect of Spark Treatmentfor Disinfection of Atmospheric Waste Water

Abstract

There is an urgent need for a reliable, economical and environmentally friendly water disinfection and activation method to eliminate micro-organisms in the water and enrich it with nutrients, which can work effectively on a small scale within the scope of watering plants. The purpose of the research is to study the effect of spark discharge treatment on the disinfection of atmospheric wastewater. Experimental studies were carried out in 2022 in the laboratory of electrophysical impact on agricultural objects and materials of the FNAC VIM (Moscow). The bacterial concentration measurement equipment used is the EnSURE Touch Luminometer. The object of research was the atmospheric wastewater of the Zhulebinsky collector and the Kuryanovsky Canal in Moscow, formed as a result of precipitation in the spring season. The experimental setup contains a TVI-50 step-up transformer with a built-in bridge rectifier; a battery of two parallel-connected capacitors K75-25 of 0.025 uF each; forming and working gaps, on which a channel of spark discharges is formed, followed at a frequency of 1 Hz at a discharge voltage of 20 kV; working body with electrodes. As a result of the studies, a decrease in the concentration of bacteria in the atmospheric wastewater of the Zhulebinsky collector to 105 CFU/ml and the Kuryanovsky canal to 104 CFU/ml was revealed with an increase in the duration of treatment with spark discharges in the experimental setup to 5 minutes. To achieve the norm of 106 CFU/ml, the water of the Zhulebinsky collector must be treated for 2 minutes. The water of the Kuryanovsky Canal requires a duration of 1.5 minutes. for disinfection up to the established norm. For disinfection of 1 log, an average of 0.3 min is required for all selected water samples.