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1. Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

Author

Gyuhyeon Kim, Young Mo Kim, Su Min Kim, Hyun Uk Cho, and Jong Moon Park

Subjects
magnetic biochar, steel slag, ammonium nitrogen, adsorption, magnetic properties, Technology
Abstract

In this study, magnetic steel slag biochar (MSSB) was synthesized from low-cost steel slag waste to investigate the effectiveness of steel slag biochar composite for NH4-N removal and magnetic properties in aqueous solution. The maximum adsorption capacity of NH4-N by MSSB was 4.366 mg/g according to the Langmuir model. The magnetic properties of MSSB indicated paramagnetic behavior and a saturation magnetic moment of 2.30 emu/g at 2 Tesla. The NH4-N adsorption process was well characterized by the pseudo-second order kinetic model and Temkin isotherm model. This study demonstrated the potential of magnetic biochar synthesized from steel slag waste for NH4-N removal in aqueous solution.

Published
2021
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2. Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

Author

Su Min Kim, Jong Moon Park, Hyun Uk Cho, Gyuhyeon Kim, and Young Mo Kim

Subjects
Technology, Control and Optimization, Materials science, Composite number, Energy Engineering and Power Technology, 02 engineering and technology, 010501 environmental sciences, Saturation magnetic moment, 01 natural sciences, Paramagnetism, symbols.namesake, Adsorption, Biochar, steel slag, Electrical and Electronic Engineering, magnetic biochar, ammonium nitrogen, adsorption, magnetic properties, Engineering (miscellaneous), 0105 earth and related environmental sciences, Aqueous solution, Renewable Energy, Sustainability and the Environment, Langmuir adsorption model, 021001 nanoscience & nanotechnology, Chemical engineering, symbols, 0210 nano-technology, Ammonium nitrogen, Energy (miscellaneous)
Abstract

In this study, magnetic steel slag biochar (MSSB) was synthesized from low-cost steel slag waste to investigate the effectiveness of steel slag biochar composite for NH4-N removal and magnetic properties in aqueous solution. The maximum adsorption capacity of NH4-N by MSSB was 4.366 mg/g according to the Langmuir model. The magnetic properties of MSSB indicated paramagnetic behavior and a saturation magnetic moment of 2.30 emu/g at 2 Tesla. The NH4-N adsorption process was well characterized by the pseudo-second order kinetic model and Temkin isotherm model. This study demonstrated the potential of magnetic biochar synthesized from steel slag waste for NH4-N removal in aqueous solution.

Published
2021

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