Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

被引：11

作者：

Kim, Gyuhyeon ^{[1
]}

Kim, Youngmo ^{[2
]}

Kim, Sumin ^{[3
]}

Cho, Hyunuk ^{[3
]}

Park, Jongmoon ^{[1
,4
,5
,6
]}

机构：

[1] Pohang Univ Sci & Technol, Div Adv Nucl Engn, Pohang 37673, South Korea

[2] Hanyang Univ, Dept Civil & Environm Engn, Seoul 04763, South Korea

[3] Gyeongsang Natl Univ, Dept Marine Environm Engn, Jinju Si 53064, South Korea

[4] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 37673, South Korea

[5] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 37673, South Korea

[6] Yonsei Univ, Sch Integrated Technol, POSTECH Yonsei Open Campus, Pohang 37673, South Korea

来源：

ENERGIES | 2021年 / 14卷 / 09期

关键词：

magnetic biochar; steel slag; ammonium nitrogen; adsorption; magnetic properties; ADSORPTION-ISOTHERM MODELS; BLAST-FURNACE SLAG; SORPTION; ACTIVATION; GASES; ORDER;

D O I：

10.3390/en14092682

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

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.

引用

页数：12

共 52 条

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