Removal of Nitrate from Water by Reed Straw Biochar with Different FeCl3 Modification Method

Zhongwei Zhang, Zhongwei Zhang, Peijing Kuang, Peijing Kuang, Junwen Ma, Yubo Cui, Yubo Cui, Zhaobo Chen, Zhaobo Chen

2022

Abstract

Nitrate contamination became an ever-increasing serious environmental problem and some conventional methods had the higher operating costs and the lower efficiency. In order to develop low-cost technology for aqueous nitrate treatment, various agro-forest residuals have attracted a great deal of research attention to preparing biochar adsorbents for nitrate adsorption. In our study, reed straw biochar was prepared from wetland plant residuals at different pyrolysis temperatures (300ºC, 400ºC, 500ºC, 600ºC and 700ºC). Meanwhile, biochar was modified by FeCl3 with different methods to optimize their adsorbent performance. The results show that the optimal preparation conditions could achieve at carbonization temperature of 600ºC for 2 h, followed by soaking in FeCl3 solution for 24 hours in alkaline condition, for which the highest adsorption capacity could reach at 1.97 mg/g after modification. SEM images show that a large amount of iron oxides were loaded on the surface of biochar, as well as in the pores of biochar, promoting the removal of nitrate. This study can provide a theoretical basis for the comprehensive utilization of agro-forest waste and nitrate removal.

Paper Citation

in Harvard Style

Zhang Z., Kuang P., Ma J., Cui Y. and Chen Z. (2022). Removal of Nitrate from Water by Reed Straw Biochar with Different FeCl3 Modification Method. In Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB, ISBN 978-989-758-595-1, pages 26-30. DOI: 10.5220/0011176000003443

in Bibtex Style

@conference{icbeb22,
author={Zhongwei Zhang and Peijing Kuang and Junwen Ma and Yubo Cui and Zhaobo Chen},
title={Removal of Nitrate from Water by Reed Straw Biochar with Different FeCl3 Modification Method},
booktitle={Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,},
year={2022},
pages={26-30},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011176000003443},
isbn={978-989-758-595-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,
TI - Removal of Nitrate from Water by Reed Straw Biochar with Different FeCl3 Modification Method
SN - 978-989-758-595-1
AU - Zhang Z.
AU - Kuang P.
AU - Ma J.
AU - Cui Y.
AU - Chen Z.
PY - 2022
SP - 26
EP - 30
DO - 10.5220/0011176000003443