在废水污泥中的生物炭上同时吸附多环芳 (PAHs)
Natiele Kleemann1, Andrei Igansi1, Nauro Silveira1
1Chemistry and Food School, Federal University of Rio Grande-FURG, Km 8 Italia Avenue, Rio Grande, RS, 96203-900, Brazil.
Environmental science and pollution research international
|March 14, 2025
概括
污水污泥生物炭有效地去除90%的持久多环芳 (PAHs). 这项研究强调了生物碳.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 多环芳 (PAH) 是一种持久性有机污染物.
- 有效的PAHs去除策略对于环境保护至关重要.
研究的目的:
- 从污水污泥中生产生物炭,并评估其作为16种优先PAH的吸附剂的有效性.
- 描述生物炭并分析PAH去除效率和吸附动力学.
主要方法:
- 污水污泥生物炭 (SSB) 的生产和表征 (SEM/EDS,BET/BJH,DRX,FTIR,DSC/DTG).
- 吸附实验以确定最佳的SSB剂量和动力建模 (埃洛维奇模型).
- 对单个PAHs的吸附能力和去除百分比的评估.
主要成果:
- 在2克L-1.1的剂量下,SSB有效地去除了90%的PAHs.
- 埃洛维奇模型最好地描述了吸附动力学.
- 兰,烯和兰显示出最高的吸附能力,表明选择性吸附.
结论:
- 污水污泥生物炭是一种有前途的吸附剂,可以从复杂的系统中去除持久的PAH.
- 该研究表明该材料对特定PAH化合物的选择性.
- 优化的生物炭应用可以显著减轻PAH污染.
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