Column adsorption of biological oxygen demand, chemical oxygen demand and total organic carbon from wastewater by magnetite nanoparticles-zeolite A composite
Abdulsalami Sanni Kovo,
Sherifat Alaya-Ibrahim,
Ambali Saka Abdulkareem,
Olalekan David Adeniyi,
Titus Chinedu Egbosiuba,
Jimoh Oladejo Tijani,
Mustapha Saheed,
Blessing Onyinye Okafor,
Adeyinka Sikiru Yusuff
Affiliations
Abdulsalami Sanni Kovo
Chemical Engineering Department, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Sherifat Alaya-Ibrahim
Chemical Engineering Department, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Ambali Saka Abdulkareem
Chemical Engineering Department, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Olalekan David Adeniyi
Chemical Engineering Department, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Titus Chinedu Egbosiuba
Chemical Engineering Department, Chukwuemeka Odumegwu Ojukwu University, PMB 02, Uli Campus, Anambra State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria; Corresponding author. Chemical Engineering Department, Chukwuemeka Odumegwu Ojukwu University, PMB 02, Uli Campus, Anambra State, Nigeria.
Jimoh Oladejo Tijani
Chemistry Department, Federal University of Technology, Minna, PMB 65, Minna, Niger State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Mustapha Saheed
Chemistry Department, Federal University of Technology, Minna, PMB 65, Minna, Niger State, Nigeria; Nanotechnology Research Group, African Centre for Excellence on Mycotoxin, Federal University of Technology, PMB 65, Minna, Niger State, Nigeria
Herein, magnetite nanoparticles (NPs), zeolite A and magnetite-zeolite A (MAGZA) composite was developed by green methods. The produced nanomaterials were characterized and the effect of process parameters such as flow rate, adsorbent bed height and adsorbate inlet concentration was evaluated for the removal of biological oxygen demand (BOD), chemical oxygen demand (COD) and total organic carbon (TOC) in a column. The characterization results demonstrated the successful synthesis of magnetite NPs, zeolite A and MAGZA composite. The performance of the MAGZA composite in the fixed-bed column was superior to zeolite A and magnetite NPs. The parametric influence indicates that an increase in bed height and a decrease in the flow rate and inlet adsorbate concentration improved the performance of the adsorption column. The adsorption column demonstrated maximum performance at a flow rate (4 mL/min), bed height (5 cm) and inlet adsorbate concentration (10 mg/L). Under these conditions, the highest percent removal of BOD, COD and TOC were 99.96, 99.88 and 99.87%. Thomas and Yoon-Nelson's model suitably fitted the breakthrough curves. After five reusability cycles, the MAGZA composite demonstrated removal percent of BOD (76.5%), COD (55.5%) and TOC (64.2%). The produced MAGZA composite effectively removed BOD, COD and TOC from textile wastewater in a continuous operating mode.
