中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The effect of electrode materials on the removal of red tide organisms by microelectrolysis

文献类型:期刊论文

作者Wei, Zelong1,2,3; Zang, Xiaomiao1,2,3; Yu, Zhiming1,2,3; Jiang, Kaiqin1,2,3; Cao, Xihua1,2,3; Song, Xiuxian1,2,3
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2025-06-01
卷号384页码:10
关键词DSA Microelectrolysis Indirect oxidation Red tide organism Algicide
ISSN号0301-4797
DOI10.1016/j.jenvman.2025.125593
通讯作者Yu, Zhiming(zyu@qdio.ac.cn)
英文摘要The oxidizing active substances produced by microelectrolysis are highly efficient algicides, and the characteristics of the anode materials are the key factors affecting the type and content of the oxidizing active substances. Currently, systematic research on the effects of the anode material type using microelectrolysis to kill red tide organisms is insufficient. In this study, Heterosigma akashiwo was selected as the experimental organism, and the microelectrolyte algal removal performances of three typical anode materials, Dimensionally Stable Anode (DSA), Platinum (Pt), and Boron-Doped Diamond (BDD) were compared under various microelectrolysis conditions, and the intrinsic mechanism of the variability in the algal removal efficiency was analyzed. Under the experimental conditions of a current density range of 0.25-0.75 A cm(-2) and an electrolysis duration of 2-4 min, the algal removal efficiency of microelectrolytes generated by three anode materials followed this descending order: DSA (Ru-Ir-Ti) > Pt > BDD. When the current density was 0.75 A cm(-2) and the electrolysis time was 4 min, the algal removal efficiency of the DSA electrolyte reached 81.7 +/- 2.3 %. The values were 11.8 % and 17.3 % respectively, which were higher than those of the Pt anode and BDD anode electrolytes. The oxidizing active substance produced by microelectrolysis for all three electrode materials was predominantly hypochlorite, and the difference in its content was the fundamental reason for the variability in the algal removal efficiency. Furthermore, compared with those of the other two electrodes, the lowest chlorine evolution potential (1.76 V) and the highest chlorine production rate (Tafel slope of 148.55 mVdec(-1)) were produced using DSA as an anode material, and these conditions also resulted in the highest hypochlorite content. These results provide essential theoretical basis for the efficient application and popularization of microelectrolysis in red tide management.
WOS关键词HYDROGEN-PEROXIDE ; WATER ; CYANOBACTERIA ; INACTIVATION ; MECHANISM ; EVOLUTION ; KINETICS ; CHLORINE
资助项目China National Key R & D Program during the 14th Five-year Plan Period[2022YFC3105204] ; National Natural Science Foundation of China[42376210]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001487052000001
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/202028]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Yu, Zhiming
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714
Wei, Zelong,Zang, Xiaomiao,Yu, Zhiming,et al. The effect of electrode materials on the removal of red tide organisms by microelectrolysis[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2025,384:10.
APA Wei, Zelong,Zang, Xiaomiao,Yu, Zhiming,Jiang, Kaiqin,Cao, Xihua,&Song, Xiuxian.(2025).The effect of electrode materials on the removal of red tide organisms by microelectrolysis.JOURNAL OF ENVIRONMENTAL MANAGEMENT,384,10.
MLA Wei, Zelong,et al."The effect of electrode materials on the removal of red tide organisms by microelectrolysis".JOURNAL OF ENVIRONMENTAL MANAGEMENT 384(2025):10.

入库方式: OAI收割

来源:海洋研究所

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