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在水浮沉程序后,在浮动颗粒中的丰富:对性可化元素的风险控制的见解

Yueyuan Zhao¹, Takayuki Honjo¹, Hao Xu²

¹Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.

The Science of the total environment

|December 11, 2025

概括

从煤炭飞灰中浮动颗粒中缩具有环境风险和回收机会. 需要对在性条件下的泄露进行进一步研究.

科学领域:

环境科学环境科学
地质化学地质化学
材料科学材料科学材料科学

背景情况:

煤炭飞灰含有大量的 (Se),这给环境带来了挑战.
了解在性环境中的物种化和行为对于风险评估和管理至关重要.

研究的目的:

为了研究丰富在漂浮颗粒 (FP) 产生的漂浮槽过程中应用到性煤飞灰.
为了阐明这些浮动粒子内的相互作用和积累的机制.
评估聚聚中缩的对环境的影响和回收潜力.

主要方法:

使用性煤飞灰的浮槽流程.
综合化学和物理分析:X射线光光谱学 (XRF),感应合等离子体质谱学 (ICP-MS),布鲁纳尔-艾梅特-泰勒 (BET) 表面积分析,X射线光电子光谱学 (XPS),X射线衍射 (XRD) 和富里埃变换红外光谱学 (FTIR).

主要成果:

在漂浮颗粒中被显著丰富 (190-388μg/g).
原始飞灰含有元素 (Se0) 和小 (SeO32-).
在性条件下,Se⁰氧化为SeO3^2-,与Ca²⁺,SO4^2-和Na⁺相互作用.
浮动颗粒,它们的疏水接口,通过共同沉和吸附捕获可溶和不可溶的物种.

结论:

浮动颗粒缩,表明潜在的环境风险和恢复机会.
目前仅在酸性条件下对泄漏的评估对性煤飞灰是不够的.
需要进一步研究在性飞灰和FP中的泄漏动力学.
提高FP度的策略可以提高控制和回收效率.

关键词:

性煤飞灰是一种性煤的飞灰.漂浮的粒子是漂浮的粒子.是一种.水漂浮-沉没过程中的水漂浮-沉没过程.

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