二氧化鈦塗抹在聚偏氟乙烯薄膜的製備

Preparation of low fouling self-assembly TiO2 coated PVDF membranes

吳冠輝(Guan-Hui Wu)

指導教授 ： 游勝傑

中原大學/工學院/土木工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200080

摘要

近年來薄膜生物反應槽廣泛的被運用且許多的研究蓬勃興起，然而薄膜應用時會產生嚴重的積垢問題導致薄膜的通量降低和透膜壓力升高。本研究利用兩種親水高分子材料與PVDF薄膜來進行混合改質，在製膜過程中將TiO2溶液加入到凝結浴中以利TiO2顆粒在膜成形時可附著在薄膜表面，本實驗除了進行薄膜基本特性分析外，並且對偶氮染料RB-5進行光催化染料降解實驗，結果顯示PVDF薄膜混合PVM/MA高分子混合膜後因膜表面上附著的TiO2顆粒較PVDF/PMMA混合膜多故光催化結果PVDF/PVM/MA優於PVDF/PMMA薄膜，且光催化試驗對於RB-5中的有機物與色度皆具有降解效果；此外對於模擬模廠運作測試中以BSA作為蛋白質，結果顯示PVDF/PVM/MA薄膜相較於PVDF/PMMA膜有助於減緩蛋白質附著於膜上或膜裡面的趨勢，且TMP和Flux也能回復到初始狀態，兩者薄膜之阻抗值因高分子含量越高阻抗值越小但PVM/MA材料較PMMA佳。

關鍵字

光催化 ； PVDF/PVM/MA混合膜 ； PVDF/PMMA混合膜 ； 阻抗值

並列摘要

In recently, MBR are widely used and many researches are rise. However, the application of membrane generate the series fouling lead to low flux and increase transmembrane pressure. In this study PVDF membrane add two hydrophilic polymers to mix and modified. The coagulation bath add TiO2 during make process can attachment membrane surface. In addition to basic analysis, antibacterial and antifouling were teated using RB5 degradation. The results showed that PVDF/PVM-MA mix membrane coated TiO2 content higher than PVDF/PMMA mix membrane so the Photodegradation experiment better. In addition, the protein (BSA) fouling experiment showed that the total fouling resistance of PVDF/PVM-MA membrane was decreased due to reduction of cake layer and pore blocking resistance. And TMP as well as Flux all back to beginning of state. Last, PVDF/PVM-MA mix membrane better than PVDF/PMMA mix membrane.

並列關鍵字

PVDF/PMMA mix membrane ； PVDF/PVM-MA mix membrane ； Photocatalysis ； resistance

參考文獻

2.Brindle, K. and Stephenson, T. (1996) “The application of membrane biological reactors for the treatment of wastewaters,” Biotechnol. Bioeng. 49,601-610.

3.Chang, I. S., Clech, P. L., Jefferson, B. and Judd, S., Membrane fouling in membrane bioreactors for wastewater treatment, Journal of Environmental Engineering, Vol. 128, No.11, 2002.

4.Chang, I.S., Le-Clech, P., Jefferson, B. and Judd, S., Membrane fouling in membrane bioreactors for wastewater treatment, J. Environ. Eng. ASCE 128. 1018-1029, 2002.

5.Chang, S., P. Le Clech, B. Jefferson and S. Judd (2002) Membrane fouling in membrane bioreactors for wastewater treatment. J. Environ. Eng. –ASCE,128, 1018–1029.

6.Chunxia Mu, Yanlei Su, Mengping Sun, Wenjuan Chen, Zhongyi Jiang(2010) Remarkable improvement of the performance of poly(vinylidene fluoride)microfiltration membranes by the additive of cellulose acetate. 293–300