Inactivation of Phytoplankton in Ship’s Ballast Water by Pulsed Electric Field and Thermal Treatment

Abstract:

Invasive aquatic species discharged through ship ballast water is one of the most serious problems posed nowadays in the marine environment. The effect of inactivation of phytoplankton by pulsed electric field and thermal treatment was studied. Effect factors such as pulsed voltage, electrode gap, pulse width and preheating temperature were explored, and its mechanism of inactivation was analyzed. The combined effect of mild thermal and PEF treatments was shown to give more effective damage of phytoplankton than application of PEF treatment alone. The untreated ballast water sample pretreated at moderate temperature (323 K) and moderate PEF (E ≈10kV/cm) showed a noticeable enhancing of inactivation.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 1060-1063
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1060
• Online since: March 2015
• Authors: Jun Feng Zhou*, Ting Fei Xie, Le Ping Xu, Rui Zhao
• Keywords: Ballast Water, Inactivation Mechanism, Phytoplankton, Pulsed Electric Field (PEF)

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