优化氧化物浸活性炭 (TiO2@ASC) 在固定床柱中的液处理:表征,建模和预测研究
Kulbir Singh1,2, Rajesh Kumar Lohchab3, Hakim Aguedal4,5
1Department of Civil Engineering, MM Engineering College, Maharishi Markandeshwar (Deemed to Be University), Mullana-Ambala, Haryana, India, 133207.
概括
这项研究表明,装有氧化的杏仁碳 (TiO2@ASC) 在固定床柱中有效处理液. 这种新型吸附剂显示出高效率和可重复使用性,有助于可持续的水资源管理.
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:
- 由于高度的化学氧气需求 (COD) 和氨 (NH3-N),液对环境构成重大风险.
- 有效和可持续的处理方法对于管理水污染和实现环境质量目标至关重要.
- 杏仁碳为开发新型吸附材料提供了可持续的前体.
研究的目的:
- 为了合成和表征氧化加载的杏仁碳 (TiO2@ASC) 用于液处理.
- 为了评估TiO2@ASC在固定床柱中的吸附性能,以去除COD和NH3-N.
- 模拟和优化吸附过程,以提高浸出物修复效率.
主要方法:
- 合成的TiO2@ASC使用BET,XRD,FTIR和FESEM-EDX进行了表征.
- 在固定床柱中进行吸附实验,优化流量,初始度和床高度.
- 使用线性床深服务时间 (BDST) 和人工神经网络 (ANN) 方法建模的吸附过程.
主要成果:
- 合成的TiO2@ASC对COD和NH3-N都表现出极好的吸附能力.
- BDST模型方程显示高精度 (R2>0.98) 预测在列中的吸附.
- ANN模型准确地预测了吸附过程的低根平均平方误差 (COD为0.0172,NH3-N为0.0167).
- 吸附剂成功地用HCl再生,并重复使用了三个周期,证明了其可重复使用性和可持续性.
结论:
- TiO2@ASC是一种高效且可重复使用的吸附剂,用于固定床柱中处理液.
- 该研究提供了一种经过验证的模型,用于优化使用固定吸附剂的浸出水处理过程.
- 这项研究支持联合国可持续发展目标6 (清洁水和卫生设施) 和11 (可持续城市和社区).
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