High-efficiency preparation of formaldehyde-free tannin-based flocculants and their algae removal mechanism
文献类型：期刊论文
| 作者 | Jia, Di1,2,3; Yu, Zhiming1,2,3; Jiang, Kaiqin1,2,3; Zang, Xiaomiao1,2,3; Chi, Lianbao1,2,3; Cao, Xihua1,2,3; Song, Xiuxian1,2,3 |
| 刊名 | HARMFUL ALGAE
 |
| 出版日期 | 2026-05-01 |
| 卷号 | 155页码:13 |
| 关键词 | Plant tannins Harmful algal blooms (HABs) Formaldehyde-free amination Process optimization Microalgae harvesting Structure-activity relationship |
| ISSN号 | 1568-9883 |
| DOI | 10.1016/j.hal.2026.103110 |
| 通讯作者 | Yu, Zhiming(zyu@qdio.ac.cn) |
| 英文摘要 | The development of green and high-efficiency flocculants for controlling harmful algal blooms (HABs) is currently a critical research focus in the field of water treatment. Plant tannins have garnered significant attention as a sustainable biomass resource; however, their application in high-salinity environments, such as seawater, remains relatively underexplored. In this study, four plant tannins were systematically investigated to select black wattle tannin (BWT) as the optimal precursor due to its superior comprehensive performance. A formaldehyde-free alkaline amination modification route was established, with synthesis parameters optimized via response surface methodology (RSM). The results indicated that the modified tannin prepared under optimal conditions (25 g/L BWT, ammonia-to-tannin molar ratio of 5.656, aerobic conditions, 20 degrees C, and stirring at 100 rpm for 4 h) achieved a stable removal efficiency of over 85% for Heterosigma akashiwo. Furthermore, this modification effectively overcame the application bottlenecks of high residual color and turbidity associated with natural tannin treatment. Mechanism analysis revealed that the performance enhancement was attributed to the synergistic effect of oxidation, polymerization, and amination reactions, resulting in the formation of a highefficiency flocculant with enhanced bridging capabilities. |
| 资助项目 | National Natural Science Foundation of China[2025ZD1206004] ; National Natu-ral Science Foundation of China[42306230] ; [42376210] |
| WOS研究方向 | Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001728015500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/205063]  |
| 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.Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Di,Yu, Zhiming,Jiang, Kaiqin,et al. High-efficiency preparation of formaldehyde-free tannin-based flocculants and their algae removal mechanism[J]. HARMFUL ALGAE,2026,155:13. |
| APA | Jia, Di.,Yu, Zhiming.,Jiang, Kaiqin.,Zang, Xiaomiao.,Chi, Lianbao.,...&Song, Xiuxian.(2026).High-efficiency preparation of formaldehyde-free tannin-based flocculants and their algae removal mechanism.HARMFUL ALGAE,155,13. |
| MLA | Jia, Di,et al."High-efficiency preparation of formaldehyde-free tannin-based flocculants and their algae removal mechanism".HARMFUL ALGAE 155(2026):13. |
入库方式： OAI收割
来源：海洋研究所
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