外来有害生物入侵性传播是海洋四大威胁之一 ,船舶排放压载水是造成有害生物传播的最主要途径 ,对此至今尚无一种有效的处理方法 .采用高频脉冲大电流气体强电离放电方法 ,把高密集度氧、水分子离解成高浓度羟基自由基OH以及其他活性粒子 ,具有广谱、快速、低浓度致死有害入侵生物的特性 .它将成为治理外来生物入侵有效、廉价、无残留物的绿色新方法 . Invasive spread of alien pests is one of the four major threats to the ocean, and ballast water discharged by ships is the most important way to cause the spread of pests. So far, there is no effective treatment method. Discharge method, the high concentration of oxygen, water molecules dissociation into high concentrations of hydroxyl radicals OH and other active particles, with broad-spectrum, fast, low concentrations of lethal harmful invaders biological characteristics. It will become effective in alien invasive, cheap, No residue green new method.