从地表水中生物吸附性去除污染物和新出现的金属污染物,使用可持续的植物性材料
Hongnoor Nagaruju Raghavendra1, Niranjan2, Hemmanahalli Suresh Raghavendra Prajwal1
1Department of Civil Engineering, Dayananda Sagar College of Engineering, Bangalore, India.
概括
油和洋种子粉有效净化污染的水,减少,颜色和重金属. 洋种子粉显示出优越的重金属去除能力,为化学凝固剂提供了可持续的替代品.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 绿色化学 绿色化学
背景情况:
- 污染的表面水对公众健康和生态系统构成重大风险.
- 传统的化学凝固剂可能会对环境产生不良影响,并且往往很昂贵.
- 越来越需要可持续的植物性水处理解决方案.
研究的目的:
- 评估Moringa oleifera和洋种子粉末作为处理污染湖水的天然凝固剂的有效性.
- 通过使用统计设计来确定凝血-花的最佳操作条件.
- 为了比较各种物理化学参数和重金属的植物性凝固剂的去除效率.
主要方法:
- 从印度的Mallathahalli和Somanahalli湖收集地表水样本.
- 分析关键的物理化学参数 (度,颜色,pH,COD) 和金属污染物.
- 使用中央复合设计 (CCD) 和响应表面方法 (RSM) 优化凝血-花.
主要成果:
- 优化的剂量 (5-6%) 和接触时间 (25-45分钟) 在多个参数上实现了50-70%的去除.
- 无论是Moringa oleifera还是洋种子粉,都显著降低了度和颜色.
- 洋种子粉显示出优异的重金属去除能力,铜 (Cu) 的高达95%, (Zn) 的高达84%.
结论:
- 油和洋种子粉是化学凝固剂的有效,环保的替代品.
- 洋种子粉在水处理中对重金属整治具有特别的希望.
- 这些植物性凝固剂为改善水质提供了可扩展和可持续的方法,特别是在资源有限的环境中.
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