使用松残留物吸附甲蓝:优化,动力学研究和异温
Luidy F Senra1, Joaquim G G S Bento1, Luana Souza Almeida2
1Department of Chemistry and Environmental, Faculty of Technology (FAT), Rio de Janeiro State University (UERJ), Resende, Rio de Janeiro, Brazil.
概括
松子残留物有效地从废水中去除甲蓝 (MB) 染料. 这种可持续的生物吸收剂显示出高吸附能力和可重复使用性,为净化水提供了有希望的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 污染废水的染料,如甲蓝 (MB) 构成环境风险.
- 开发具有成本效益和可持续的吸附剂对于有效的染料去除至关重要.
研究的目的:
- 调查松残留物作为MB去除生物吸收剂的潜力.
- 为了表征松残留物和优化吸附条件.
- 评估吸附动力学,热力学和生物吸收剂的可重复使用性.
主要方法:
- 使用SEM和FTIR对松残留物的表征.
- 使用响应表面方法和决策树回归,优化吸附参数 (接触时间,初始染料度,生物吸收剂剂量).
- 对吸附动力学,平衡,热力学和再生的分析.
主要成果:
- 颗粒大小显著影响MB的去除效率和吸附能力.
- 确定了最佳吸附条件,从而提高了性能.
- 埃洛维奇模型最好地描述了动力学,而兰穆尔等温适合平衡数据,最大吸附能力为148.54 mg/g.
- 吸附过程是自发的和外热的,而生物吸收剂在酸脱附后表现出良好的可重复使用性.
结论:
- 松子残留物是一种高效,低成本和可持续的生物吸收剂,用于去除甲蓝.
- 该研究强调了农业废物在废水处理应用中的潜力.
- 优化的条件和有利的吸附特性使松残留物成为工业染料去除的可行选择.
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