Vol. 12, No.2, pp.49-54 (2019)
Application for Marine Industries Using Pulsed Power Technology
D. Wang and T. Namihira
Institute of Pulsed Power Science, Kumamoto University, Japan
Abstract
Pulsed power is a unique technology which results extreme physical phenomena. Another point is the controllability of output power. For biological application purpose, the time duration of a single pulse lies between a few nanoseconds and a few microseconds, with steep rise and fall time and flatness of its plateau region. It enables application of high pulse electric field and high current in liquid phase, and also can generate discharge plasmas in liquids with a wide range of conductivities. Due to those characteristics, biological applications such as extermination of harmful organisms in highly conductive seawater have been studied for few decades. In this paper, the physical phenomena and application researches on inactivation of bacterial spores, cells, zooplankton, and marine organisms in liquids are introduced. Beneficial experimental results have been reported and the analysis are explained.
Keywords - Pulsed power, electric field, underwater discharge plasma, shockwave, electrical conductivity, sterilization, inactivation