海上围隔进行羟基杀灭赤潮生物的研究  

Study on enclosure test of treating red tide with hydroxyl radical

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作  者:白敏冬[1] 张芝涛[1] 吕吉斌[2] 杨波[1] 白希尧[1] 

机构地区:[1]大连海事大学物理系高气压强电场电离放电辽宁省重点实验室,辽宁大连116026 [2]海洋生态环境科学与工程国家海洋局重点实验室,山东青岛266061

出  处:《海洋科学》2006年第8期54-57,63,共5页Marine Sciences

基  金:国家自然科学重点基金资助项目(60031001);国家重大基础研究前期研究专项项目(2002CCC00900)

摘  要:采用强电场电离H2O、O2方法,在分子层次上加工成高浓度羟基自由基(OH.)溶液,喷洒在有赤潮生物的海面上,当海水的羟基质量浓度达到0.68 mg/L时,致死洛氏角刺藻(Chaetoceros lorenzianus)等31种赤潮生物效率达到99.89%,致死细菌、弧菌效率达到100%,致死膝沟藻孢囊、多甲藻孢囊效率达到100%;赤潮生物叶绿素a含量低于检测方法低限值;剩余OH.分解成H2O和O2;尸体将分解成CO2、H2O和微量无机盐。从试验数据表明,OH.是治理赤潮有效可行的绿色新方法。实现了治理赤潮以及加工羟基过程的零污染、零废物排放、零残留物。Using strong ionization discharge, H2O and O2 are ionized and made into OH^· solution of high concentration. When this solution is sprayed on sea surface with red tide and the ratio concentration of OH^· in sea water attains to 0.68 mg/L, the efficiency of killing twenty nine kinds of organisms such as Chaetoceros lorenzianus in red tide attains to 99.89%. The efficiency of killing bacterium and Vibrio attains to 100%. The efficiency of killing Gonyaulax cysts and Peridinium cysts. Cysts attains to 100%; the chlorophyll-a content of organisms in red tide is lower than the lowest limit which can be tested; the saturation DO is obviously increased; the residual OH^· is decomposed into H2O and O2 ; the bodies are decomposed into CO2, H2O and few inorganic salts. The experimental data show that strong ionization advanced oxidation OH^· is an effective and feasible green method of treating red tide which realizes zero pollution, zero waste emission and aero residua during treating red tide and producing hydroxyl radicals.

关 键 词:强电离放电 OH^· 赤潮生物 

分 类 号:X55[环境科学与工程—环境工程]

 

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