A Method of Cyanobacteria Treatment Using Underwater Pulsed Streamer-Like Discharge
A Method of Cyanobacteria Treatment Using Underwater Pulsed Streamer-Like Discharge
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DOI：
10.1109/tps.2014.2303512
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发表时间：
2014-02
影响因子：
1.5
通讯作者：
T. Sakugawa;N. Aoki;H. Akiyama;K. Ishibashi;Masashi Watanabe;A. Kouda;K. Suematsu
中科院分区：
文献类型：
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作者：
T. Sakugawa;N. Aoki;H. Akiyama;K. Ishibashi;Masashi Watanabe;A. Kouda;K. Suematsu
水华（又称蓝藻水华）是一个严重的全球性污染问题。本文报道了一种利用水下流光放电处理蓝藻的方法。全固态脉冲功率系统产生水下重复放电。脉冲功率系统的输出电压为30 kV，脉宽为4 μs。利用该脉冲电源系统可以产生重复性的水下流光放电。我们将该系统安装在水华处理设备中。流光状放电的大小约为30毫米直径。我们在日本九州地区的一个大坝进行了实验。在处理蓝藻水华的过程中，我们对水体的叶绿素浓度、浊度、氢势、溶解氧、电导率和温度进行了测定。治疗时间为60 min，均可缩短。特别地，叶绿素浓度和浊度显著降低。初始叶绿素浓度为600 μg/L，初始浊度为1000浊度单位（NTU）。结果表明，处理后的叶绿素浓度和浊度分别为85 μg/L和80 NTU。
Water bloom (named cyanobacterial bloom) is becoming a serious pollution problem all over the world. In this paper, a method of cyanobacteria treatment using underwater streamer-like discharge is reported. Repetitive underwater discharges are generated by all solid-state pulsed power system. Output voltage of the pulsed power system is 30 kV with 4 μs pulse width. We can generate repetitive underwater streamer-like discharge by the pulsed power system. And we have the system mounted in the water-bloom treatment apparatus. The size of streamer-like discharge is about 30-mm diameter. We conducted the experiment at a dam in Kyushu district in Japan. We have measured chlorophyll concentration, turbidity, potential of hydrogen, dissolved oxygen, conductivity, and temperature of water during treatment of cyanobacteria bloom. The treatment time is 60 min. All of them could be reduced. In particular, the chlorophyll concentration and the turbidity are remarkably decreased. Initial chlorophyll concentration is 600 μg/L, and initial turbidity is 1000 nephelometric turbidity unit (NTU). We obtained that treatment results of chlorophyll concentration and turbidity were 85 μg/L and 80 NTU, respectively.