Feng Daolun, Shi Jidong, Sun Dan
College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, PR China.
College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, PR China.
Mar Pollut Bull. 2015 Jan 15;90(1-2):299-303. doi: 10.1016/j.marpolbul.2014.09.006. Epub 2014 Nov 18.
The exotic emission of ballast water has threatened the coastal ecological environment and people's health in many countries. This paper firstly introduces pulse intense light to treat ballast water. 99.9 ± 0.09% inactivation of Heterosigma akashiwo and 99.9 ± 0.16% inactivation of Pyramimonas sp. are observed under treatment conditions of 350 V pulse peak voltage, 15 Hz pulse frequency, 5 ms pulse width and 1.78 L/min flow rate. The energy consumption of the self-designed pulse intense light treatment system is about 2.90-5.14 times higher than that of the typical commercial UV ballast water treatment system. The results indicate that pulse intense light is an effective technique for ballast water treatment, while it is only a competitive one when drastic decreasing in energy consumption is accomplished.
压舱水的外来排放已经威胁到许多国家的沿海生态环境和人们的健康。本文首先介绍了利用脉冲强光处理压舱水。在350V脉冲峰值电压、15Hz脉冲频率、5ms脉冲宽度和1.78L/min流速的处理条件下，观察到赤潮异弯藻的灭活率为99.9±0.09%，金字塔藻的灭活率为99.9±0.16%。自行设计的脉冲强光处理系统的能耗比典型的商用紫外线压舱水处理系统高约2.90-5.14倍。结果表明，脉冲强光对于压舱水处理是一种有效的技术，而只有在能耗大幅降低时它才具有竞争力。
