Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau

[Purposes] This work has been done to deal with soil phosphorus pollution in the Loess Plateau area and similar environmentally sensitive regions and develop a technique for reusing coal fly ash. [Methods] Batch studies with coal fly ash as a soil amendment were conducted to systematically investiga...

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Main Authors: GAO Jiangqi, DUAN Runbin, LU Xinyu, LI Yuzhen, SUN Yao, ZHU Bingzi
Format: Article
Language:English
Published: Editorial Office of Journal of Taiyuan University of Technology 2025-01-01
Series:Taiyuan Ligong Daxue xuebao
Subjects:
Online Access:https://tyutjournal.tyut.edu.cn/englishpaper/show-2363.html
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author GAO Jiangqi
DUAN Runbin
LU Xinyu
LI Yuzhen
SUN Yao
ZHU Bingzi
author_facet GAO Jiangqi
DUAN Runbin
LU Xinyu
LI Yuzhen
SUN Yao
ZHU Bingzi
author_sort GAO Jiangqi
collection DOAJ
description [Purposes] This work has been done to deal with soil phosphorus pollution in the Loess Plateau area and similar environmentally sensitive regions and develop a technique for reusing coal fly ash. [Methods] Batch studies with coal fly ash as a soil amendment were conducted to systematically investigate the impact of dosage, pH, initial phosphorus concentration, time, and temperature on phosphorus adsorption in red clay soils with amendment of coal fly ash. [Findings] Isothermal, kinetic, and thermodynamic analyses indicated that the addition of coal fly ash significantly enhanced the maximum adsorption capacity of red clay soils for phosphorus, accelerated the adsorption reaction rate, altered the phosphorus adsorption kinetics, and enhanced the spontaneity of the adsorption process. This study provides new insights into addressing phosphorus pollution in red clay soils in the Loess Plateau area and the sustainable disposal of coal fly ash.
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institution Kabale University
issn 1007-9432
language English
publishDate 2025-01-01
publisher Editorial Office of Journal of Taiyuan University of Technology
record_format Article
series Taiyuan Ligong Daxue xuebao
spelling doaj-art-31aa2ada487243a1b340315cbf251b372025-02-12T03:34:22ZengEditorial Office of Journal of Taiyuan University of TechnologyTaiyuan Ligong Daxue xuebao1007-94322025-01-01561445310.16355/j.tyut.1007-9432.202401341007-9432(2025)01-0044-10Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess PlateauGAO Jiangqi0DUAN Runbin1LU Xinyu2LI Yuzhen3SUN Yao4ZHU Bingzi5College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, ChinaCollege of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, ChinaCollege of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, ChinaCollege of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, ChinaCollege of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, ChinaCollege of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, China[Purposes] This work has been done to deal with soil phosphorus pollution in the Loess Plateau area and similar environmentally sensitive regions and develop a technique for reusing coal fly ash. [Methods] Batch studies with coal fly ash as a soil amendment were conducted to systematically investigate the impact of dosage, pH, initial phosphorus concentration, time, and temperature on phosphorus adsorption in red clay soils with amendment of coal fly ash. [Findings] Isothermal, kinetic, and thermodynamic analyses indicated that the addition of coal fly ash significantly enhanced the maximum adsorption capacity of red clay soils for phosphorus, accelerated the adsorption reaction rate, altered the phosphorus adsorption kinetics, and enhanced the spontaneity of the adsorption process. This study provides new insights into addressing phosphorus pollution in red clay soils in the Loess Plateau area and the sustainable disposal of coal fly ash.https://tyutjournal.tyut.edu.cn/englishpaper/show-2363.htmladsorption modelsadsorption performanceclay mineralsloess soilsweber and morris model
spellingShingle GAO Jiangqi
DUAN Runbin
LU Xinyu
LI Yuzhen
SUN Yao
ZHU Bingzi
Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
Taiyuan Ligong Daxue xuebao
adsorption models
adsorption performance
clay minerals
loess soils
weber and morris model
title Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
title_full Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
title_fullStr Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
title_full_unstemmed Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
title_short Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
title_sort coal fly ash as a soil amendment for phosphorus adsorption in red clay soils of the loess plateau
topic adsorption models
adsorption performance
clay minerals
loess soils
weber and morris model
url https://tyutjournal.tyut.edu.cn/englishpaper/show-2363.html
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