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使用离子和非离子复合生物表面活性剂修复受油污染的土壤
Yanxin Zhao1, Yuhuan Sun1, Fang Zuo1
1College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China.
Environmental technology
|June 14, 2024
概括
这项研究开发了一种低成本,环保的清洁剂,使用生物表面活性剂进行石油污染的土壤整治. 优化的配方实现了76%的脱油率,显示了大规模土壤净化潜力.
科学领域:
- 环境科学 环境科学
- 土壤修复土壤的修复.
- 绿色化学 绿色化学
背景情况:
- 石油碳化合物污染土壤,对生态系统和健康构成风险.
- 表面活性剂洗是有效的碳化合物修复,但生物表面活性剂是昂贵的.
- 生物表面活性剂提供环境兼容性,引发了人们对其应用的兴趣.
研究的目的:
- 使用生物表面活性剂开发一种成本效益高的石油污染土壤清洁剂.
- 通过复合和添加剂选择优化新型清洁剂配方.
- 评估开发的生物表面活性剂系统在土壤修复方面的效率.
主要方法:
- 作为生物表面活性剂选择了β-环氧 (C1) 和碳素甲基纤维素 (C2).
- 开发了一种清洁剂配方,通过将C1和C2与酸盐和碳酸盐混合.
- 优化了油洗参数,包括温度,pH值,时间,固体-液体比率和振荡频率.
主要成果:
- 最佳的C1:C2体积比为8:2与8g/L电解质混合物将表面张力降到最低,并最大限度地去除油.
- 混合微粒的协同行为被用理想溶液理论和鲁宾格模型解释.
- 在优化的条件下,石油去除率达到76%.
结论:
- 开发的清洁剂具有成本效益,易于应用,并且环保.
- 该剂在石油污染的土壤上表现出快速而显著的清洁效果.
- 这种基于生物表面活性剂的清洁剂对现场规模的土壤净化应用具有前景.
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