通过响应表面建模,利用Moringa stenopetala和来优化来自埃塞俄比亚的便污泥的以资源为导向的凝结/花块的多响应优化
Akalu Melketsadik Woldeyohans1, Esayas Alemayehu2, Diederik P L Rousseau3
1Faculty of Civil and Environmental Engineering, Jimma University Institute of Technology (JIT), Jimma University, Jimma, Ethiopia; Laboratory for Industrial Water and Ecotechnology (LIWET), Department of Green Chemistry and Technology, Ghent University Campus Kortrijk, Sint Martens-Latemlaan 2B, Kortrijk, B-8500, Belgium; Department of Environmental Health, Wollo University College of Medicine and Health Sciences, Dessie, Ethiopia.
Journal of environmental management
|April 17, 2025
概括
莫林加石 (Moringa stenopetala) 种子提取物 (MSE) 在便污泥 (FS) 处理方面显示出比更大的潜力,增强了资源回收. MSE实现了更高的化学氧需求 (COD) 清除和能量含量,同时最大限度地减少了污泥体积.
科学领域:
- 环境科学 环境科学
- 水处理 处理水的方法
- 可持续发展 可持续发展 可持续发展
背景情况:
- 便污泥 (FS) 处理对发展中国家至关重要,与可持续发展目标6 (清洁水和环境卫生) 和7 (负担得起和清洁能源) 保持一致.
- 来自FS的资源回收是实现这些目标的关键,为废物管理和能源生产提供解决方案.
研究的目的:
- 为了比较Moringa stenopetala种子提取物 (MSE) 与用于便污泥处理的凝结-花效果.
- 从资源回收的角度来评估这两种凝固剂,优化化学氧需求 (COD) 移除,能量含量,总固体 (TS) 度和污泥量.
主要方法:
- 采用响应表面中央复合材料设计,将pH值和凝固剂剂量作为MSE和的变量.
- 利用多响应优化和建模来最大限度地提高所需结果并最大限度地减少污泥量.
- 在每个凝固剂的最佳条件下对性能指标进行了比较分析.
主要成果:
- 在216 mg/g TS和pH 2.2.2下,MSE实现了94%的COD去除,18.4 MJ/kg热量,48.8 g/L TS度和259 mL/L污泥体积.
- 获得了92%的COD去除,17.3MJ/kg热量,32.7g/LTS度,以及370mL/L污泥体积在98mg/gTS和pH6.
- 与先相比,MSE在所有资源回收指标上表现出卓越的表现.
结论:
- 在便污泥处理方面,Moringa stenopetala种子提取物 (MSE) 是比更有效的凝固剂,特别是从资源回收的角度来看.
- MSE为便污泥管理提供了一个有希望的可持续替代方案,有助于实现清洁水,环境卫生和能源目标.
- 该研究强调了MSE在提高便污泥处理过程中产生的价值方面的潜力.
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