多因素对离子膜电解处理压载水中藻类的影响  

Factors Affecting Process of Ion-Exchange Membrane Electrolysis Inactivating Algae in Ballast Water Treatment

作　　者：孙金阳[1] 王俊生[2] 潘新祥[1] 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026 [2]大连海事大学信息科学技术学院,辽宁大连116026

出　　处：《中国航海》2014年第2期89-92,共4页Navigation of China

基　　金：国家自然科学基金(51309042);中央高校基本科研业务费专项资金(3132014207;2011TD027)

摘　　要：采用离子膜电解法处理船舶压载水,研究电解产物注入量、作用时间、藻类密度、海水温度和水体中有机物等不同因素对电解产物灭活藻类的影响.实验结果中,电解产物浓度和作用时间会直接影响藻类的杀灭效果,有效氯浓度为5 mg/L、作用时间24 h时,藻类全部死亡;海水温度为10～25℃,随温度的升高,藻类的致死率增大,当温度达30℃时,杀灭效果降低;藻类密度增大、海水中有机物含量增加都会减弱电解产物对藻类的杀灭效果.实验模拟海洋中各因素的变化,为离子膜电解法处理压载水提供实验依据.The effect of factors influencing the inactivation of algae,electrolysis products,action time,algal cell density,temperature,seawater organisms,in the process of ion-exchange membrane electrolysis ballast water treatment are studied.The object of study covers three algae species：Karenia mikimotoi,Nitzschia closterium minutissima and Platymonas subcordiformis.The results indicate that the dose of electrolysis products and the action time directly affect the inactivation of algae.The three kinds of algal died in 24 h when available chlorine concentration is 5 mg/L.The inactivating effect increases with the increasing of temperature within the range of 10 to 25 ℃,but goes down beyond 30 ℃.Inactivating effect decreases as the density of algal cells and seawater organisms increase.The results of experiments may be used in designing water treatment equipment of the type.

关 键 词：船舶工程 压载水 离子膜电解 藻类 影响因素 

分 类 号：U698.7[交通运输工程—港口、海岸及近海工程]