Iron-based biochar materials for phosphorus recovery from agricultural runoff: Mechanism and potential application as a slow-release fertilizer

文献类型： 外文期刊

第一作者： Hui, Kai

作者： Hui, Kai;He, Rui;Tian, Qianqian;Zhang, Xu;Yao, Hong;Hui, Kai;He, Rui;Yao, Hong;Zhou, Xiaokai;Hou, Lu;Zhang, Xu;Jiang, Yu

作者机构：

关键词： Phosphorus recovery; Amorphous FeOOH; Biochar; Adsorption sites; Bioavailability

期刊名称：SEPARATION AND PURIFICATION TECHNOLOGY （ 影响因子：8.6； 五年影响因子：7.8 ）

ISSN： 1383-5866

年卷期： 2024 年 347 卷

页码：

收录情况： SCI

摘要： Agricultural runoff is an important pathway leading to the loss of phosphorus (P) resources. In this study, three amorphous FeOOH biochar (AF-BC) composites with good P adsorption properties were prepared. Batch experiments showed that both the Elovich model and the Langmuir -Friedrich model were effective in describing the P adsorption by AF-BC, suggesting that the P adsorption by these three materials is a multi-mechanism adsorption process dominated by chemical process. Among them, S -AF exhibited the best adsorption performance with an expected maximum adsorption capacity of 276.40 mg/g. This superior performance can be attributed to S -AF having a larger surface area and a higher concentration of basic groups. Plant culture tests have shown this composite to be effective in promoting seed germination and growth, so it can be used to sequester P lost from agricultural runoff and as a slow-release P fertilizer to improve the soil.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序