填埋场废水处理污垢缓解的新方法：采用硫化锡涂层聚四氟乙烯膜的气隙膜蒸馏
Novel Approach to Landfill Wastewater Treatment Fouling Mitigation: Air Gap Membrane Distillation with Tin Sulfide-Coated PTFE Membrane.
作者信息
Khan Abdulaziz, Ibrar Ibrar, Mirdad Abeer, Al-Juboori Raed A, Deka Priyamjeet, Subbiah Senthilmurugan, Altaee Ali
机构信息
Mechanical and Mechatronic Engineering (MME), University of Technology Sydney, 15 Broadway, Sydney, NSW 2007, Australia.
Mechanical Department at Taif Technical College, Technical and Vocational Training Corporation (TVTC), Riyadh 11564, Saudi Arabia.
出版信息
Membranes (Basel). 2023 Apr 29;13(5):483. doi: 10.3390/membranes13050483.
This study addressed the fouling issue in membrane distillation (M.D.) technology, a promising method for water purification and wastewater reclamation. To enhance the anti-fouling properties of the M.D. membrane, a tin sulfide (TS) coating onto polytetrafluoroethylene (PTFE) was proposed and evaluated with air gap membrane distillation (AGMD) using landfill leachate wastewater at high recovery rates (80% and 90%). The presence of TS on the membrane surface was confirmed using various techniques, such as Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Energy Dispersive Spectroscopy (EDS), contact angle measurement, and porosity analysis. The results indicated the TS-PTFE membrane exhibited better anti-fouling properties than the pristine PTFE membrane, and its fouling factors (FFs) were 10.4-13.1% compared to 14.4-16.5% for the PTFE membrane. The fouling was attributed to pore blockage and cake formation of carbonous and nitrogenous compounds. The study also found that physical cleaning with deionized (DI) water effectively restored the water flux, with more than 97% recovered for the TS-PTFE membrane. Additionally, the TS-PTFE membrane showed better water flux and product quality at 55 °C and excellent stability in maintaining the contact angle over time compared to the PTFE membrane.
本研究探讨了膜蒸馏（M.D.）技术中的污垢问题，该技术是一种用于水净化和废水回收的有前景的方法。为了增强M.D.膜的抗污性能，提出了一种在聚四氟乙烯（PTFE）上涂覆硫化锡（TS）的方法，并采用气隙膜蒸馏（AGMD）对其进行评估，使用的是高回收率（80%和90%）的垃圾渗滤液废水。通过各种技术，如场发射扫描电子显微镜（FE-SEM）、傅里叶变换红外光谱（FT-IR）、能量色散光谱（EDS）、接触角测量和孔隙率分析，证实了膜表面存在TS。结果表明，TS-PTFE膜比原始PTFE膜表现出更好的抗污性能，其污垢因子（FFs）为10.4 - 13.1%，而PTFE膜为14.4 - 16.5%。污垢归因于含碳和含氮化合物的孔堵塞和滤饼形成。研究还发现，用去离子（DI）水进行物理清洗能有效恢复水通量，TS-PTFE膜的水通量恢复率超过97%。此外，与PTFE膜相比，TS-PTFE膜在55°C时表现出更好的水通量和产品质量，并且在长时间内保持接触角的稳定性极佳。
Zotero 插件