Design of a Laboratory Electro-hydraulic Installation for Water Disinfection

Abstract

Electrohydraulic effect is used in various fields of industry and agriculture: for cleaning metal casting forms, cleaning pipes of power boilers, treatment of heating radiators, soil treatment and water disinfection. Existing technical means for water disinfection with high-voltage discharges are expensive, cumbersome and untransportable. Currently used installations use an operating voltage of 10-50 kilovolts, capacitors designed for a voltage of no more than 100 kilovolts, with a capacity of 0.025 microfarads. Water disinfection according to the conducted research can be carried out with a voltage of 10 kilovolts. (Research purpose) The research purpose is in developing and manufacturing a laboratory electrohydraulic installation for water disinfection, which has a technical novelty in terms of mobility and compactness for implementing a method of water disinfection at a voltage of no more than 10 kilovolts. (Materials and methods) During the research, next materials, equipment and devices were used: power supply; transformer; capacitor; forming gap; working body; shunt resistance. (Results and discussion) The principle of the electrohydraulic effect, which is a consequence of the occurrence of electrohydraulic shocks between high-voltage electrodes placed in a liquid, is the basis for the development and manufacture of the installation. Authors developed a structural diagram of a laboratory electrohydraulic unit for water disinfection. The article presents an experimental sample of a laboratory installation for water disinfection, which has a technical novelty in terms of mobility and compactness for implementing a method for water disinfection at a voltage of no more than 10 kilovolts. The installation consists of a power supply unit FA-5-1/300W, a high-voltage step-up transformer TDKS32-04, a capacitor K75-29A (16 kilovolts, 1 microfarad), forming a gap of metal balls with a diameter of 18 millimeters, a plastic working body made of ABS material, a shunt resistance of 1 kilohm. (Conclusions) They article shows the scientific and practical significance of the research results: a technical means for water disinfection, providing the possibility of conducting experimental laboratory studies of the electrohydraulic effect at a voltage of no more than 10 kilovolts.

Investigation of the yield of biologically active substances during the ultrasound and electro-discharge extraction of medicinal herbs of the foothills of the North Caucasus

“…In addition, the electrodischarge treatment's light and sound accompaniment require a specially equipped room with high sound insulation properties [46]. The costs for the purchase and maintenance of electro-discharge equipment are 12-18 times higher than similar costs for the maintenance of an ultrasonic radiator [47]. In addition, electric discharge treatment requires a careful approach to choose the treatment mode due to the significant heating of the liquid [48].…”

Effect of Spark Treatmentfor Disinfection of Atmospheric Waste Water

“…При более высоком напряжении снижается эксплуатационная надежность установки, при меньшем напряжении увеличивается продолжительность обработки[8]. Обработка воды плазмой искровых разрядов частотой 1 Гц осуществляется в рабочем органе, поэтому материалом для обеспечения прочности и надежности этого наиболее важного компонента установки выбран титан[9]. Максимальная разовая загрузка рабочего органа 2,5 л воды.…”