太原理工大学学报2025，Vol.56Issue(1)：44-53,10.DOI:10.16355/j.tyut.1007-9432.20240134
粉煤灰作为土壤改良剂吸附黄土高原红黏土中的磷
Coal Fly Ash as a Soil Amendment for Phosphorus Adsorption in Red Clay Soils of the Loess Plateau
摘要
Abstract
[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 sys-tematically investigate the impact of dosage,pH,initial phosphorus concentration,time,and tempera-ture on phosphorus adsorption in red clay soils with amendment of coal fly ash.[Findings]Isother-mal,kinetic,and thermodynamic analyses indicated that the addition of coal fly ash significantly en-hanced 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 adsorp-tion 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.关键词
吸附模型/吸附性能/黏土矿物/黄土/Weber-Morris模型Key words
adsorption models/adsorption performance/clay minerals/loess soils/Weber and Morris model分类
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高江奇,段润斌,逯新宇,李育珍,孙曜,朱冰姿..粉煤灰作为土壤改良剂吸附黄土高原红黏土中的磷[J].太原理工大学学报,2025,56(1):44-53,10.基金项目
山西省基础研究计划自然科学研究面上项目(202103021224082) （202103021224082）
