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可持续地将纸行业的泥转化为活性生物炭,用于高性能甲蓝清除

Antonio Machado Netto¹, Marcela de Oliveira Brahim Cortez¹, José Pedro Rodrigues Ferreira¹

¹Department of Chemistry, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-900, Brasil.

|February 23, 2026

概括

纸中的活性生物炭 (A-BC) 有效地从废水中去除染料. 这种可持续的材料使用酸和在450°C的优化热解来生产,为循环经济方法提供了显著的吸附能力.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
化学工程是化学工程的重要组成部分.

背景情况:

纸和造纸行业的污泥是一个重要的废物流.
将污泥提升为活性生物炭 (A-BC) 提供了环境和经济上的好处.
A-BC可用于废水处理,特别是用于去除染料.

研究的目的:

从纸和造纸行业的生物污泥中生产活性生物炭 (A-BC).
为了研究热解温度对A-BC特性和性能的影响.
评估A-BC在从水溶液中去除甲蓝 (MB) 染料方面的有效性.

主要方法:

用酸 (H3PO4) 处理泥,然后在400至550°C的温度下进行热解.
使用近距离分析,FTIR,XRD,拉曼光谱和BET表面积分析对A-BC进行表征.
使用甲蓝 (MB) 的吸附研究,使用兰穆尔和伪二次运动模型.

主要成果:

在450°C (A-BC2) 产生的A-BC显示出增强的多孔性和表面积.
对于MB,A-BC2的最大吸附能力为390.73毫克g-1.
吸附遵循兰格穆尔等温和和伪二阶动力学,表明化学吸附.

结论:

从造纸业污泥中提取的活性生物炭是去除染料的可持续材料.
优化的热解温度 (450°C) 最大化了A-BC的吸附效率.
这种利用与废物管理和水处理的循环经济原则相一致.

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