| 电解法处理船舶压载水的杀菌性能及机理研究 |
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| 引用本文： | 刘铭辉,张晓,刘家明,王妮,刘涛,纪志永.电解法处理船舶压载水的杀菌性能及机理研究[J].海洋技术,2019,38(1). |
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| 作者姓名： | 刘铭辉 张晓 刘家明 王妮 刘涛 纪志永 |
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| 作者单位： | 中海油能源发展股份有限公司北京安全环保工程技术研究院,天津300457;中海石油环保服务(天津)有限公司,天津300457;河北工业大学化工学院,海水资源高效利用化工技术教育部工程研究中心,天津300130;河北省现代海洋化工技术协同创新中心,天津300130;中海油能源发展股份有限公司北京安全环保工程技术研究院,天津,300457;中海油能源发展股份有限公司北京安全环保工程技术研究院,天津300457;中海油节能环保服务有限公司,天津300457 |
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| 基金项目： | 河北省青年拔尖人才项目;河北省青年拔尖人才项目;天津市留学人员科技活动启动项目 |
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| 摘 要： | 船舶压载水携带的微生物对目的海域的污染问题亟待解决。采用电解法,以渤海湾的海水为处理对象,以炭纤维材料为阴极,分别以碳棒、碳板和炭纤维为阳极,首先考察了施电2.00 V下3种阳极炭材料对应的杀菌效果,进而重点考查了碳板为阳极材料时施加不同槽压下的杀菌性能,并对其杀菌机理进行初步分析。结果表明,3种阳极材料对应的杀菌效果先后顺序为碳棒碳板炭纤维,各自的杀菌效果均较为明显,施电18 min时碳板对应的灭活率可达100%;以碳板为阳极时,施加槽压越高杀菌效果越显著,本研究范围内以1.81 V为佳,施电18 min时灭活率在99%以上;不同槽压下体系中氯离子浓度和p H都随时间整体呈减小趋势,一定程度上可用于解释杀菌作用过程。研究结果可为电解法处理船舶压载水提供参考和借鉴。
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| 关 键 词： | 船舶压载水 槽压 灭活率 电解 炭材料 |
Study on bactericidal performance and mechanism of ballast water treatment using electrolysis |
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| Minghui Liu,Xiao Zhang,Jiaming Liu,Ni Wang,Tao Liu and Zhiyong Ji.Study on bactericidal performance and mechanism of ballast water treatment using electrolysis[J].Ocean Technology,2019,38(1). |
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| Authors: | Minghui Liu Xiao Zhang Jiaming Liu Ni Wang Tao Liu and Zhiyong Ji |
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| Institution: | 1. CNOOC EnerTech Beijing Research Institute of Engineering and Technology for Safety and Environmental Protection, Tianjin 300457, China; 5. China Offshore Environmental Services Ltd. , Tianjin 300457, China,2. Engineering Research Center of Seawater Utilization of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; 3. Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China;,2. Engineering Research Center of Seawater Utilization of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; 3. Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China;,1. CNOOC EnerTech Beijing Research Institute of Engineering and Technology for Safety and Environmental Protection, Tianjin 300457, China;,1. CNOOC EnerTech Beijing Research Institute of Engineering and Technology for Safety and Environmental Protection, Tianjin 300457, China; 4. CNOOC Energy Conservation and Environmental Protection Service Co., Ltd., Tianjin 300457, China; and 2. Engineering Research Center of Seawater Utilization of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; 3. Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China; |
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| Abstract: | It is urgent to solve the pollution problem of microorganism in ballast water. Based on the electrolytic process, taking seawater of Bohai Bay as treatment object, the corresponding bactericidal effect of three kinds of anode materials (graphite rod, carbon plate and carbon fiber) was investigated with carbon fiber as cathode at 2.00 V; then the bactericidal performance of carbon plate as anode material was characterized under different cell voltages, and a preliminary analysis on the bactericidal mechanism was carried out. The results showed that the bactericidal effect of the three anode materials was in the order of graphite rod > carbon plate > carbon fiber, and the bactericidal effect of each anode material was obvious; the bactericidal ratio could reach 100% at 18 min with carbon plate as anode. When carbon plate was used as the anode, the higher the cell voltage was, the more significant sterilization effect would be, and 1.81V was preferred and the corresponding bactericidal ratio was above 99% at 18 min in this study. The concentration of chloride ions and pH in the system showed a decreasing trend with time under different cell voltages, which could explain the sterilization process to some extent. The results could provide reference for the treatment of ballast water by electrolysis. |
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