[1]许承彪,王鲁,王义世,等.高铁酸盐反应产物负载超滤膜的性能研究[J].中国给水排水,2025,41(21):60-67.
XUCheng-biao,WANGLu,WANGYi-shi,et al.Performance of Ultrafiltration Membranes Loaded with Ferrate Reaction Products[J].China Water & Wastewater,2025,41(21):60-67.
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XUCheng-biao,WANGLu,WANGYi-shi,et al.Performance of Ultrafiltration Membranes Loaded with Ferrate Reaction Products[J].China Water & Wastewater,2025,41(21):60-67.
高铁酸盐反应产物负载超滤膜的性能研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第41卷
期数:
2025年第21期
页码:
60-67
栏目:
出版日期:
2025-11-01
- Title:
- Performance of Ultrafiltration Membranes Loaded with Ferrate Reaction Products
- Keywords:
- ferrate; reaction product; ultrafiltration membrane; membrane fouling; flux; water purification efficiency
- 摘要:
- 膜污染是超滤膜推广应用中面临的主要问题之一。将高铁酸盐反应产物负载于超滤膜表面制成复合超滤膜,探究其对膜污染的控制作用以及对污染物的截留效果。制备了高铁酸盐自分解产物负载膜(Fe-M)和高铁酸盐与氯化锰反应产物负载膜(FeMn-M),并与原膜(PES)进行对比分析。结果表明,前者负载基本不影响纯水通量,后者使通量下降约20%。超滤时Fe-M通量下降得到略微缓解,超滤结束的归一化通量从0.46升至0.56,并显著降低了可逆污染,而FeMn-M的缓解效果更显著,终点归一化通量为0.66,且大幅减少了不可逆污染。Fe-M对腐殖酸的截留率可以达到85.3%,而FeMn-M进一步提升至95.1%。Fe-M形成疏松多孔负载层,FeMn-M形成的负载层更密实、粗糙度小,均提升了亲水性,且降低膜与污染物的吸引力,利于减少不可逆污染和提高截留率。综上,两种负载物均可提升膜的抗污染性能与污染物截留效果。
- Abstract:
- Membrane fouling is one of the major problems in the popularization and application of ultrafiltration membranes. In this study, composite ultrafiltration membranes were prepared by loading ferrate reaction products on the surface of ultrafiltration membranes to explore their role in fouling control and pollutant interception performance.Two types of loaded membranes were prepared: ferrate self-decomposition product loaded membrane (Fe-M) and ferrate-manganese chloride reaction product loaded membrane (FeMn-M), and they were compared with the original membrane (PES). The results showed that the former loading basically did not affect the pure water flux, while the latter reduced the flux by about 20%. During ultrafiltration, Fe-M slightly alleviated the flux decline, with the normalized flux at the end of ultrafiltration increasing from 0.46 to 0.56, and significantly reduced reversible fouling. In contrast, FeMn-M had a more significant alleviating effect, with an endpoint normalized flux of 0.66, and greatly reduced irreversible fouling. The interception rate of humic acid by Fe-M could reach 85.3%, while FeMn-M further increased the interception rate to 95.1%. Fe-M formed a loose and porous loaded layer, and FeMn-M formed a denser loaded layer with small roughness. Both improved hydrophilicities, reduced the attraction between the membrane and pollutants, which was beneficial to reducing irreversible fouling and improving the interception rate. In conclusion, both loaded substances can improve the anti?fouling property and interception effect of the membrane.
相似文献/References:
[1]张彦平,呼瑞琪,李一兵,等.高铁酸盐氧化剩余污泥溶胞减量研究[J].中国给水排水,2020,36(15):59.
ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(21):59.
[2]张娇,李依,杨小春,等.钙法原位制备高铁酸盐降解水中草甘膦的研究[J].中国给水排水,2022,38(19):76.
ZHANGJiao,LIYi,YANGXiao-chun,et al.In Situ Preparation of Ferrate by Calcium Method for Glyphosate Degradation in Water[J].China Water & Wastewater,2022,38(21):76.
更新日期/Last Update:
2025-11-01