THERMAL SCIENCE

International Scientific Journal

Ying Mei

,

Jun-Ya Xu

,

Pei-Qi Jia

,

Xiao-Han Zhu

,

Yu-Qi Liu

,

Jian-Qi Zhang

,

Hang Zhou

,

Ya-Jun Xiang

,

Ying Chang

,

Jun-Jiang Bao

ISOTHERMAL ADSORPTION EXPERIMENT OF NITRATE NITROGEN IN BIORETENTION MEDIA

ABSTRACT
Bioretentions can remarkably improve the rainwater quality. Though iron and aluminum as fillers in bioretentions can remove nitrate nitrogen, its adsorption mechanism is not clear yet and was rarely studied. This paper takes sand, iron powder, and aluminum powder as the research objects to study the adsorption characteristics of nitrate nitrogen in the bioretention with different pH values and different ionic strength. The results show that aluminum powder has the highest the adsorption capacity. Langmuir adsorption isotherm equation and the quasi-secondary kinetic model are adopted to analyze the experimental data.
KEYWORDS
bioretention, nitrate nitrogen, adsorption, pH, ionic strength
PAPER SUBMITTED: 2020-05-02
PAPER REVISED: 2020-07-01
PAPER ACCEPTED: 2020-07-01
PUBLISHED ONLINE: 2021-03-27
DOI REFERENCE: https://doi.org/10.2298/TSCI200502115M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 3, PAGES [2269 - 2278]
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Isothermal adsorption experiment of nitrate nitrogen in bioretention media

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence