腐殖质
吸附
解吸
腐植酸
地下水
化学
蒙脱石
环境化学
污染
磷
胶体
朗缪尔
地下水污染
环境科学
土壤科学
有机化学
土壤水分
地质学
含水层
生态学
岩土工程
生物
肥料
作者
Changxi Wang,Simin Yao,Renkuan Liao,Jiřı́ Šimůnek
出处
期刊:Chemosphere
[Elsevier BV]
日期:2024-09-01
卷期号:364: 143300-143300
标识
DOI:10.1016/j.chemosphere.2024.143300
摘要
Phosphorus (P) has been widely recognized as a substance that is difficult to transport due to its tendency to become easily fixed in the soil. However, many reports demonstrate that groundwater P pollution is rising in humus-rich areas. Research is urgently needed to confirm (or reject) the hypothesis that increased P pollution is related to humus, as there is currently limited quantitative research on this topic. In this study, we conducted a series of batch equilibrium adsorption-desorption experiments and column experiments to quantify the effects of montmorillonite colloids (MCs) and humic acids (HCs, the main components of humus) on the P transport behavior. The results indicate that P's adsorption and desorption behavior on MCs can be well simulated using the Langmuir and Temkin models (R
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