The Utilization of Chicken Egg White Waste-Modified Nanofiber Membrane for Anionic Dye Removal in Batch and Flow Systems: Comprehensive Investigations into Equilibrium, Kinetics, and Breakthrough Curve
Yun-Rou Chen,
Dinh Thi Hong Thanh,
Quynh Thi Phuong Tran,
Bing-Lan Liu,
Penjit Srinophakun,
Chen-Yaw Chiu,
Kuei-Hsiang Chen,
Yu-Kaung Chang
Affiliations
Yun-Rou Chen
Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
Dinh Thi Hong Thanh
Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
Quynh Thi Phuong Tran
Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City 70880, Vietnam
Bing-Lan Liu
Department of Applied Chemistry, Chaoyang University of Technology, Taichung 413310, Taiwan
Penjit Srinophakun
Department of Chemical Engineering, Kasetsart University, 50 Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
Chen-Yaw Chiu
Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
Kuei-Hsiang Chen
Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
Yu-Kaung Chang
Department of Chemical Engineering and Materials Science, Yuan Ze University, Zhongli Dist., Taoyuan City 320315, Taiwan
This study investigated the use of chicken egg white (CEW) waste immobilized on weak acidic nanofiber membranes for removing the anionic acid orange 7 (AO7) dye in batch and continuous flow modes. Different experiments were conducted to evaluate the effectiveness of CEW-modified nanofiber membranes for AO7 removal, focusing on CEW immobilization conditions, adsorption kinetics, and thermodynamics. The CEW-modified nanofiber membrane (namely NM-COOH-CEW) exhibited a maximum AO7 adsorption capacity of 589.11 mg/g within approximately 30 min. The Freundlich isotherm model best represented the equilibrium adsorption data, while the adsorption kinetics followed a pseudo-second-order rate model. Breakthrough curve analysis using the Thomas model and the bed depth service time (BDST) model showed that the BDST model accurately described the curve, with an error percentage under 5%. To investigate AO7 elution efficiency, different concentrations of organic solvents or salts were tested as eluents. The NM-COOH-CEW nanofiber membrane exhibited promising performance as an effective adsorbent for removing AO7 dye from contaminated water.
