Novel hydroxyapatite-based bio-ceramic hollow fiber membrane derived from waste cow bone for textile wastewater treatment

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 379; p. 122396
• Main Authors: Hubadillah, Siti Khadijah, Othman, Mohd Hafiz Dzarfan, Tai, Zhong Sheng, Jamalludin, Mohd Riduan, Yusuf, Nur Kamilah, Ahmad, Azlan, Rahman, Mukhlis A., Jaafar, Juhana, Kadir, Siti Hamimah Sheikh Abdul, Harun, Zawati
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2020
• Subjects: Ceramic membrane; Cow bone; Hydroxyapatite (HAp); Wastewater treatment; Ceramic membrane; Cow bone; Wastewater treatment; Hydroxyapatite (HAp)
• ISSN: 1385-8947; 1873-3212
• DOI: 10.1016/j.cej.2019.122396

•Novel ceramic membranes were derived from waste cow bone for textile wastewater.•Membrane structure comprises of the cylindrical rod-shaped HAp particles.•The membrane can effectively treated textile wastewater through hybrid separation-adsorption mechanism.•High rejections of color (99.9%), COD (80.1%), turbidity (99.4%) and conductivity (30.1%) were obtained. Industrial textile wastewater is toxic due to the presence of recalcitrant color pigments and poisonous heavy metals. In this study, the hydroxyapatite (HAp)-based bio-ceramic hollow fiber membranes (h-bio-CHFM) were developed via the combined phase inversion and sintering technique. It was found that the properties of the developed h-bio-CHFMs were greatly affected by the HAp content of the ceramic suspension, and sintering temperature. The h-bio-CHFM with the sintering temperature of 1200 °C exhibited the long rod-shaped HAp particles and the smallest pore size (0.013 μm). High removals of color (99.9%), COD (80.1%), turbidity (99.4%) and conductivity (30.1%) were achieved using the h-bio-CHFM sintered at 1200 °C with stable high flux of 88.3 L/m2h. Remarkably, the h-bio-CHFM sintered in the temperature range of 1000–1200 °C also demonstrated excellent adsorption ability towards heavy metals with 100% removals. The results of this study show the potential of the h-bio-CHFM for the efficient industrial textile wastewater treatment applications.