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草甘和Triton X-100单竞争性吸-脱分析通过动力和平衡框架使用最大概率方法

Hamid Moghimi^1,2, Mohaddeseh Mousavi Nezhad³, Marijke Huysmans²

¹Porous Materials and Processes Modelling Research Group, School of Engineering, the University of Warwick, Coventry, CV4 7AL, UK.

Environmental science and pollution research international

|November 9, 2025

概括

这项研究表明,Triton X-100具有最小的土壤吸附,而草甘吸附与土壤矿物质相增加. 竞争条件和较高的Triton X-100度减少了草甘的吸附,并减缓了土壤污染物平衡.

科学领域:

环境化学环境化学
土壤科学土壤科学
农业化学品农业化学品农业化学品

背景情况:

农药和表面活性剂在土壤中的迁移对地下水质量构成风险.
了解竞争性吸-脱对于评估农业化学品的漏潜力至关重要.
以前的模型往往简化了土壤中的共同污染物之间的复杂相互作用.

研究的目的:

在单一和竞争条件下研究草甘和Triton X-100的吸附-脱附动态.
开发和应用一个先进的反向模型 (最大概率方法) 来描述这些过程.
为了比较平衡和运动框架,并评估土壤特性和化合物相互作用的影响.

主要方法:

进行了批量实验,以收集吸附-脱附数据.
开发了一个基于最大概率算法的反向模型来估计关键的吸附-脱附参数.
单一和竞争性等热体被整合到建模框架中.
进行了动态分析,以了解速度限制步骤.

主要成果:

特里顿X-100表现出最小的吸附 (最大容量为0.2mg/g土壤),不受土壤类型或草甘存在的影响.
草甘的吸附 (最大容量高达27mg/g土壤) 与土壤矿物质 (高达45%) 增加,并在动力控制下显示出更高的吸附-脱附比率.
竞争条件降低了高达10%的草甘酸吸附,在较高的Triton X-100度下进一步降低. 动力分析显示了快速的初始吸附阶段 (大约. 70%),其次是实现平衡的速度较慢,Triton X-100延长了这一阶段并延迟了平衡.

结论:

土壤矿物学显著增强了草甘的吸收,影响了它的环境命运.
特里顿X-100的存在,特别是高度的存在,会对草甘的吸附产生负面影响,并延长达到平衡的时间,增加泄漏风险.
开发的最大概率方法为量化环境矩阵中复杂的吸附-脱附行为提供了强大的方法.

关键词:

草甘是一种天然的草甘.地下水污染污染地下水污染动力平衡分析分析最大的概率方法.单一的竞争性吸附脱吸附.特里顿X-100可以使用.

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