Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

Gyuhyeon Kim, Young Mo Kim, Su Min Kim, Hyun Uk Cho and Jong Moon Park
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Gyuhyeon Kim: Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
Young Mo Kim: Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Korea
Su Min Kim: Department of Marine Environmental Engineering, Gyeongsang National University, Jinju-si 53064, Korea
Hyun Uk Cho: Department of Marine Environmental Engineering, Gyeongsang National University, Jinju-si 53064, Korea
Jong Moon Park: Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 37673, Korea

Energies, 2021, vol. 14, issue 9, 1-12

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 NH 4 -N removal and magnetic properties in aqueous solution. The maximum adsorption capacity of NH 4 -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 NH 4 -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 NH 4 -N removal in aqueous solution.

Keywords: magnetic biochar; steel slag; ammonium nitrogen; adsorption; magnetic properties (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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