Civil Engineering Faculty, Environmental Engineering Department, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey.
National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey.
Environ Sci Pollut Res Int. 2019 Nov;26(32):32723-32733. doi: 10.1007/s11356-019-04409-6. Epub 2019 Mar 7.
This study investigated the applicability of self-forming hollow fiber dynamic membrane (DM) as a low-cost alternative to ultrafiltration (UF) membrane. A hollow fiber polyester fabric was used as a support material to form the DM layer. Submerged DM and UF hollow fiber membrane were placed in the same reactor in order to compare the treatment and filtration performance of each membrane. Morphological analyses were also carried out for DM surface. The system was operated continuously at a flux of 5 L/m h for 85 days. High COD removal efficiency and total suspended solids (TSS) rejection were achieved by the DM. Transmembrane pressure (TMP) of the DM was higher in comparison to the UF membrane, which was related with the formation of cake layer in DM. DM technology can be used as an alternative to UF membrane for municipal wastewater treatment.
本研究考察了自形成中空纤维动态膜（DM）作为超滤（UF）膜的低成本替代物的适用性。中空纤维聚酯织物用作 DM 层的支撑材料。将浸没式 DM 和 UF 中空纤维膜放置在同一个反应器中，以比较每种膜的处理和过滤性能。还对 DM 表面进行了形态分析。该系统以 5 L/m h 的通量连续运行 85 天。DM 实现了高 COD 去除效率和总悬浮固体（TSS）去除率。与 UF 膜相比，DM 的跨膜压力（TMP）更高，这与 DM 中滤饼层的形成有关。DM 技术可作为市政废水处理中 UF 膜的替代物。
