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TREATMENT OF RED TIDE WITH HYDROXYL RADICALS IN ENCLOSURE EXPERIMENT
Author(s): 
Pages: 513-517
Year: Issue:  6
Journal: OCEANOLOGIA ET LIMNOLOGIA SINICA

Keyword:  赤潮生物羟基溶液围隔试验;
Abstract: 针对化学药剂和粘土絮凝法治理赤潮存在的问题,2002年8月在胶州湾近岸进行了海上围隔杀灭赤潮生物的试验.采用强电离放电的物理方法,将空气中O2和海水中H2O电离离解成OH·等自由基,溶解到一部分海水中形成高浓度的羟基溶液,喷洒在围隔内水面上,其比值浓度为4.2mg/L.当海水中羟基浓度达到0.68mg/L时,赤潮生物叶绿素a含量低于检测的最低值.24h后检测杀死灰甲多甲藻、光甲多甲藻、多纹膝沟藻等33种赤潮生物,其致死率达99.8%,其中藻类孢子的致死率达100%,海水水质亦有明显的改善.试验结果表明,羟基溶液是目前治理赤潮可行的、有效的新方法.
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