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碳质材料对通过流动包装的柱子系统中的去除的影响

Lingyang Chu¹, Ziteng Song², Shiqiang Zou¹

¹Department of Civil and Environmental Engineering, Auburn University, Auburn, AL, 36849, USA.

Environmental science and pollution research international

|October 9, 2024

概括

测试了五种具有成本效益的碳化材料 (CMs),以测试从水中去除 (P). 活性炭和铁氧化物涂层的生物炭在封装列系统中显示出最高的P去除效率.

科学领域:

环境科学环境科学
水的化学水的化学
材料科学材料科学材料科学

背景情况:

(P) 过载是水生生态系统退化的首要驱动因素,导致缩和有害的藻类繁殖.
有效的P去除策略对于保持水质和生态平衡至关重要.

研究的目的:

评估五种具有成本效益的碳状材料 (CMs) 的性能,用于通过流动包装的柱子系统中去除.
描述CMs的物理化学特性,并将它们与P去除效率相关联.

主要方法:

研究了五种CM:树生物炭 (E-biochar),道格拉斯生物炭 (D-biochar),商业生物炭 (C-biochar),氧化铁涂层生物炭 (Fe-biochar) 和商业活性炭 (AC).
描述了包括特定表面积 (SSA),毛孔体积和元素组成在内的物理化学性质.
进行了封装列实验,以评估P的去除能力.

主要成果:

清除P的性能按照以下顺序进行:E-生物炭 < D-生物炭 < C-生物炭 < Fe-生物炭 < AC.
吸附能力范围从0.0036毫克P/g (E-生物炭) 到0.088毫克P/g (AC).
活性炭表现出最高的效率,因为它具有很大的SSA和孔径,主要是通过物理吸附. 铁-生物炭显示高效率归因于静电相互作用.

结论:

具有成本效益的碳化材料,特别是AC和Fe-biochar,显示出从水生环境中去除的巨大潜力.
材料特性如SSA,孔隙结构和表面化学都极大地影响了P吸附效率.
这些发现为减轻污染和改善水质提供了切实可行的解决方案.

关键词:

活性炭是一种活性炭.生物炭是一种生物炭.碳酸性材料是一种碳酸性材料.包装的柱子包装的柱子是一种的物质.移除移除移除移除

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