UPSI Digital Repository (UDRep)
|
UPSI Digital Repository (UDRep)
|
|
|
|
||||||||||||||||||||||||||||
| Abstract : Universiti Pendidikan Sultan Idris |
| Low-cost mullite-kaolinite material has recently received more attention as an alternative to conventional ceramic materials such as alumina and silica to prepare ceramic hollow fibre membranes (CHFMs) due to its high alumina contents and silica and thermal/chemical stability. However, weak bending strength is still one of the key bottlenecks that delay their commercial applications. In this work, we successfully fabricate a novel mullite-SS HFM with enhanced bending strength using mullite-kaolinite power with different stainless steel alloy (SS) 316 L contents of 0.0, 2.5, 5.0, 7.5, 10 and 12 % (w/w) as a reinforcement material by phase inversion/sintering techniques. The SS alloy was a potential material to enhance the mechanical strength of mullite HFMs due to its excellent mechanical properties. The effects of the major fabrication parameters of SS contents, mullite contents, and fabrication parameters such as air gap distance and bore fluid flow rates were well studied and evaluated through the fabrication process. Fabricated mullite-SS HFMs were characterized by morphology, porosity, pore size/pore size distribution, and bending strength. Afterwards, they were evaluated in an oil/water separation system regarding water flux and oil rejection rate. Based on the findings, there was a gradual increase in the bending strength from 32.1 to 79.8 MPa with increased SS contents from 0 to 12 % (w/w). At 10 % (w/w) SS, the satisfactory morphology with the balance between the bending strength of 66.7 MPa and porosity of 29 % was obtained. This bending strength was significantly higher than reported for mullite-kaolinite HFMs in previous works. Moreover, At 10 % (w/w) SS, the oil–water rejection performance of 96.9% and the water permeation of 290 L/m2. h was satisfactory at the sintering temperature of 1300 °C. These findings suggest the advantage of this membrane for various water treatment applications, such as oil/water separation, due to its outstanding physical properties. © 2023 THE AUTHORS |
| References |
Zamora-Ledezma C et al. Heavy metal water pollution: A fresh look about hazards, novel and conventional remediation methods. Environ Technol Innov 2021;22:101504. Omar NMA et al. Recent progress, bottlenecks, improvement strategies and the way forward of membrane distillation technology for arsenic removal from water: a review. J Water Process Eng 2023;52:103504. Larsen TA, Riechmann ME, Udert KM. State of the art of urine treatment technologies: a critical review. Water Research X 2021;13:100114. Omar NMA et al. Bottlenecks and recent improvement strategies of ceramic membranes in membrane distillation applications: a review. J Eur Ceram Soc 2022. Twibi MF et al. Development of high strength, porous mullite ceramic hollow fiber membrane for treatment of oily wastewater. Ceram Int 2021;47 (11):15367–82. Alftessi SA et al. Novel silica sand hollow fibre ceramic membrane for oily wastewater treatment. J Environ Chem Eng 2021;9(1):104975. Rasouli S, Rezaei N, Hamedi H, Zendehboudi S, Duan X. Superhydrophobic and superoleophilic membranes for oil-water separation application: a comprehensive review. Mater Des 2021;204:109599. Lahiere RJ, Goodboy KP. Ceramic membrane treatment of petrochemical wastewater. Environ Prog 1993;12(2):86–96. Dong Y, Feng X, Feng X, Ding Y, Liu X, Meng G. Preparation of low-cost mullite ceramics from natural bauxite and industrial waste fly ash. J Alloy Compd 2008;460(1–2):599–606. Suresh K, Pugazhenthi G, Uppaluri R. Fly ash based ceramic microfiltration membranes for oil-water emulsion treatment: Parametric optimization using response surface methodology. J Water Process Eng 2016;13:27–43. Li L et al. A low-cost alumina-mullite composite hollow fiber ceramic membrane fabricated via phase-inversion and sintering method. J Eur Ceram Soc 2016;36(8):2057–66. Hubadillah SK, Othman MHD, Harun Z, Ismail A, Rahman MA, Jaafar J. A novel green ceramic hollow fiber membrane (CHFM) derived from rice husk ash as combined adsorbent-separator for efficient heavy metals removal. Ceram Int 2017;43(5):4716–20. Abd Aziz MH, Othman MHD, Hashim NA, Adam MR, Mustafa A. Fabrication and characterization of mullite ceramic hollow fiber membrane from natural occurring ball clay. Appl Clay Sci 2019;177:51–62. Roy R, Das D, Rout PK. A review of advanced mullite ceramics. Engineered Science 2021;18:20–30. |
| This material may be protected under Copyright Act which governs the making of photocopies or reproductions of copyrighted materials. You may use the digitized material for private study, scholarship, or research. |