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SA-PES 复合膜的制备表征 及其处理退浆废水的效果研究

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Preparation and characterization of SA-PES composite membrane and its effectiveness in treating desizing wastewater

期刊信息

合肥工业大学（自然科学版），2026年6月，第49卷第6期：721-728，746

DOI: 10.3969/j.issn.1003-5060.2026.06.001

作者信息

武世洋 $ ^{1} $，崔康平 $ ^{1} $，袁新锐 $ ^{1} $，唐玉朝 $ ^{2} $，孙士杰 $ ^{3} $，李海洋 $ ^{4} $

（1 合肥工业大学资源与环境工程学院，安徽合肥 230009；2. 安徽建筑大学环境污染控制与废弃物资源化利用安徽省重点实验室，安徽合肥 230601；3. 皖创环保股份有限公司，安徽宿州 234122；4. 中新联科环境科技（安徽）有限公司，安徽六安 231300）

摘要和关键词

摘要: 文章使用涂覆交联方式, 在酸性条件下, 以戊二醛为交联剂, 通过原位交联和浸渍交联 2 种方法将不同质量分数的海藻酸钠(sodium alginate, SA)水凝胶层涂覆在聚醚砜(PES)膜表面, 制备多种 SA-PES 复合膜。通过傅里叶变换红外光谱仪(Fourier transform infrared spectrometer, FTIR)、扫描电子显微镜(scanning electron microscope, SEM)、接触角测量仪、错流超滤实验等方式, 对制备的超滤膜性能及处理退浆废水的效果进行了评价。结果表明, 使用浸渍交联法, 在 SA 质量分数为 0.10% 时制备的 SA-PES 复合膜的纯水通量为 $ 35.6 \, \text{L}/(\text{m}^2 \cdot \text{h} \cdot \text{bar}) $, 接触角为 $ 21.78^\circ $, 对退浆废水中 PVA 的截留率为 98.8%; SA-PES 复合膜的平衡膜通量为 0.890, 经 500 min 超滤实验, 膜通量恢复率为 0.93。研究表明浸渍交联法制备的 SA-PES 复合膜亲水性高、纯水通量高、对聚乙烯醇(PVA)的截留效果好、抗污染能力强、稳定性好, 该复合膜能显著提升对退浆废水的处理效果。

关键词: 超滤膜；聚醚砜(PES)；退浆废水；海藻酸钠(SA)；表面涂覆

Authors

WU Shiyang $ ^{1} $, CUI Kangping $ ^{1} $, YUAN Xinrui $ ^{1} $, TANG Yuchao $ ^{2} $, SUN Shijie $ ^{3} $, LI Haiyang $ ^{4} $

(1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China; 3. Wancho Environmental Protection Co., Ltd., Suzhou 234122, China; 4. Zhongxin Lianke Environmental Technology (Anhui) Co., Ltd., Lu'an 231300, China)

Abstract and Keywords

Abstract: In this study, various SA-PES composite membranes were prepared by coating and crosslinking with different concentrations of sodium alginate(SA) on the surface of polyethersulfone(PES) membrane under acidic conditions, using glutaraldehyde as cross-linking agent, through in-situ crosslinking and impregnation cross-linking. The performance of the prepared ultrafiltration membrane and its effectiveness in treating desizing wastewater were evaluated through Fourier transform infrared spectrometer(FTIR), scanning electron microscope(SEM), contact angle measuring instrument, and cross-flow ultrafiltration experiments. The results showed that using the impregnation cross-linking method, the pure water flux of the SA-PES composite membrane prepared at a SA concentration of 0.10% was 35.6 L/(m^{2} \cdot h \cdot bar), and the contact angle was 21.78°. The retention rates of PVA in the desizing wastewater were 98.8%. The SA-PES composite membrane has good stability and anti- fouling ability, with an equilibrium membrane flux of 0.890. After 500 minutes of ultrafiltration experiment, the membrane flux recovery rate was 0.93. This study indicates that the SA-PES composite membrane prepared by impregnation cross-linking method has high hydrophilicity, high pure water flux, good retention effect on polyvinyl alcohol(PVA), strong anti-pollution ability, and good stability, significantly improving the effectiveness in treating desizing wastewater.

Keywords: ultrafiltration membrane; polyethersulfone(PES); desizing wastewater; sodium alginate (SA); surface coating

基金信息

国家重点研发计划资助项目（2019YFC0408500）；安徽省高校协同创新资助项目（GXXT-2023-046）

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