新型双金属除氟混凝剂制备及在混凝吸附一体化技术中的除氟效果

doi:10.3976/j.issn.1002-4026.2025178

山东科学

• 环境与生态 •

新型双金属除氟混凝剂制备及在混凝吸附一体化技术中的除氟效果

杨宇¹，付英^1*，王杰²，Christopher W.K. Chow³，陈俊¹，成明⁴

收稿日期：2025-12-05 修回日期：2026-01-07

基金项目: 济南大学2025年度公派出国留学项目（2025）;济大-西藏智慧水务研究院项目（W2024125）

作者简介：杨宇（2001—），男，硕士研究生，研究方向为水的混凝处理。E-mail: yangy_tmjzxy@163.com

*通信作者，付英，女，教授，研究方向为水处理理论与技术。E-mail: cea_fuy@ujn.edu.cn 电话：15628678335

1. 济南大学土木建筑学院, 山东济南 250022； 2. 山东泰安宁阳县公用事业服务中心, 山东泰安 271400； 3. Sustainable Infrastructure and Resource Management (SIRM), Adelaide University, SA 5095, Australia； 4. 西藏智慧水务股份有限公司, 西藏拉萨 850000

收稿日期:2025-12-05 接受日期:2026-01-07 上线日期:2026-06-09
通信作者: 付英 E-mail:cea_fuy@ujn.edu.cn
作者简介:杨宇（2001—），男，硕士研究生，研究方向为水的混凝处理。E-mail: yangy_tmjzxy@163.com
基金资助:
济南大学2025年度公派出国留学项目（2025）;济大-西藏智慧水务研究院项目（W2024125）

Preparation of a novel bimetallic fluoride-removing coagulant and its defluorination performance in an integrated coagulation–adsorption process

YANG Yu¹, FU Ying^1*, WANG Jie², Christopher W.K. Chow³, CHEN Jun¹, CHENG Ming⁴

1. School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; 2. Ningyang County Public Utilities Service Center of Tai’an City in Shandong, Tai’an 271400, China; 3. Sustainable Infrastructure and Resource Management (SIRM), Adelaide University, SA 5095, Australia; 4. Xizang Smart Water Co., Ltd., Lhasa 850000, China

Received:2025-12-05 Accepted:2026-01-07 Online:2026-06-09
Contact: FU Ying E-mail:cea_fuy@ujn.edu.cn

摘要/Abstract

摘要： 以低温低浊含氟水为实验水样，利用烧杯实验，采用两级渐进正交实验法制备一种由铁和铝组成的新型双金属除氟混凝剂（BFrC），并探究稀释程度对其粒径和带电特性的影响。以聚硅铁作参比，研究了液体BFrC与固体BFrC在混凝吸附一体化技术中的除氟除浊效果及其介观形态的对比。结果表明，BFrC最佳制备参数为：m_铁/m_铝=0.5、m_铁/m_聚合铝=0.8、聚合温度为20 ℃。BFrC稀释成0.012 5 mg/L（以“铁+铝”计）时可实现适度的初级水解，形成粒径分布合理、吸附能力强的颗粒絮凝物。BFrC投加量为18.5 mg/L时，可将氟的质量浓度降至<1 mg/L，除氟率可达58.4%，而聚硅铁除氟率最高为11.3%，但聚硅铁除浊效果优于BFrC。液体BFrC与固体BFrC对氟的去除能力相当，但前者因絮体沉降性较佳具有较好的除浊效果。液体BFrC形成的较大絮体表现为较强的聚集性，但小絮体的尺寸明显大于固体BFrC且数量较少。过滤环节基本无除氟效果，但表现出较好的深度除浊效果。

关键词: 低温, 低浊, 双金属除氟混凝剂, 混凝, 吸附, 除氟, 除浊

Abstract: Using jar tests, a novel bimetallic fluoride-removing coagulant (BFrC) composed of iron and aluminum was prepared by a two-stage progressive orthogonal test in treating a synthesized water with low-temperature and low-turbidity containing fluoride, and the impact of dilution degree on its particle size and charge characteristics were investigated, respectively. Compared with poly-Si-Fe coagulant, the fluoride and turbidity removal by both liquid BFrC and its solid sample were evaluated in an integrated coagulation–adsorption process, along with the comparison of their mesoscopic morphology. The results indicated that the optimal iron/aluminum, iron/polyaluminum and copolymerization temperature for BFrC preparation were 0.5, 0.8, and 20°C, respectively. When BFrC was diluted to 0.012 5 mg/L (as “iron + aluminum”), moderate primary hydrolysis was achieved, forming flocs with a reasonable size distribution and strong adsorption capacity. When BFrC dosage was 18.5 mg/L, fluoride concentration was reduced to < 1 mg/L, corresponding to the removal rate of 58.4%, while the greatest fluoride removal by poly-Si-Fe coagulant was only 11.3%, though giving a higher turbidity removal than BFrC. Liquid BFrC gave similar fluoride removal to solid BFrC, but the former posed a higher turbidity removal due to its larger flocs having better settling performance. The larger flocs formed by liquid BFrC exhibited strong aggregative properties, but the size of smaller flocs in liquid BFrC was significantly larger than that in solid BFrC, but having lower number. The filtration almost gave no further removal of fluoride, but showed a higher turbidity removal.

Key words: low-temperature, low-turbidity, bimetallic fluoride-removing coagulant, coagulation, adsorption, fluoride removal, turbidity removal

中图分类号:

X703.1

杨宇, 付英, 王杰, Christopher W.K. Chow, 陈俊, 成明. 新型双金属除氟混凝剂制备及在混凝吸附一体化技术中的除氟效果[J]. 山东科学, 0, (): 1-.

YANG Yu, FU Ying, WANG Jie, Christopher W.K. Chow, CHEN Jun, CHENG Ming. Preparation of a novel bimetallic fluoride-removing coagulant and its defluorination performance in an integrated coagulation–adsorption process[J]. Shandong Science, 0, (): 1-.

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新型双金属除氟混凝剂制备及在混凝吸附一体化技术中的除氟效果

Preparation of a novel bimetallic fluoride-removing coagulant and its defluorination performance in an integrated coagulation–adsorption process

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