Affiliation:
1. Egyptian Russian University (ERU)
2. Housing and Building National Research Center (HBRC)
3. Badr University in Cairo (BUC)
Abstract
Wastewater treatment by nanotechnology, specifically magnetic nanosorbent as nanoZero Valent Iron (nZVI), is a new technology for degradation of wide ranges of organic pollutants by the effect of free electrons as Advanced Oxidation Processes (AOPs) and adsorption processes. Due to their effectiveness, economic, and safety properties, this study prepared and characterized nZVI to be entrapped into natural alginate biopolymer (Ag/nZVI). The removal of wastewater chemical pollutants was tested by studying the variations of COD levels. The effect of operating conditions was studied at different pH, Ag/nZVI doses (g/L), contact time (min), stirring rate (rpm), and initial COD concentrations. Also, Adsorption isotherm, kinetic studies were conducted to estimate equilibrated reaction mechanisms. Linear regression analysis was tested to find the Response Surface Methodology (RSM) relations between variables and removal percentages. Nonlinear Feed-Forward backpropagation system was built for Artificial intelligence neural networks (ANNs) importance detections. Finally, this study approved effective COD removal percentages reached 76%. The maximum removal efficiency for initial COD concentration 400 mg/L was observed at pH 6, using wet dose 3g/L, 30min, and 150 rpm.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference76 articles.
1. Jéquier, E. and F. Constant, Water as an essential nutrient: the physiological basis of hydration. European journal of clinical nutrition, 2010. 64(2): pp.115-123.
2. Mahmoud, M. and A.S. Mahmoud, Wastewater treatment using nano bimetallic iron/copper, adsorption isotherm, kinetic studies, and artificial intelligence neural networks. Emergent Materials, 2021: pp.1-9.
3. Frisbie, S.H., et al., World Health Organization discontinues its drinking-water guideline for manganese. Environmental health perspectives, 2012. 120(6): pp.775-778.
4. Mahmoud, M., et al., Comparison of aluminum and iron nanoparticles for chromium removal from aqueous solutions and tannery wastewater, empirical modeling and prediction. Emergent Materials, 2021: pp.1-16.
5. Mahmoud, A.S., Study the Removal of Most Hazardous Pollutants from Aqueous Solutions Using Nanoparticles. 2017, http://lis.cl.cu.edu.eg/search*ara.
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