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With the physical method of micro-gap gas discharge, OH. radicals were produced by the ionization of O2 in air and H2O in the gaseous state, in order to explore more effective method totreat the ship's ballast water. The surface morphology of Al2O3 dielectric layer was analysed using Atomic Force Microscopy (AFM), where the size of Al2O3 particles was in the range of 2 μm to 5 μm. At the same time, the biochemical effect of hydroxyl radicals on the introduced organisms and the quality of ship's ballast water were studied. The results indicate that the main reasons of cell death are lipid peroxide and damage of the antioxidant enzyme system in Catalase (CAT), Peroxidase (POD) and Superoxide dismutase (SOD). In addition, the quality of the ballast water was greatly improved. 相似文献
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脉冲放电技术及在清井上的应用 总被引:2,自引:0,他引:2
应用大电流脉冲在井下液体中放电产生巨大冲击波,清除油层孔道内沉积物,使地层发生微裂缝,使液体由滞留区内排液区流动,达到增产增注一的目的。由于采用变频技术使设备小型化,可以放到井下。临界击穿电压40kV,脉冲电流幅值达到10^7A,脉宽10us。每个脉冲能量达1.2kJ,瞬时冲击波最大值可达10^3MPa以上。 相似文献
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