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管道泄漏的电洗:针对不同土壤基质的现场策略

Elnaz Rajaei¹, Maria Elektorowicz¹

¹Department of Building, Civil and Environmental Engineering, Concordia University, Montréal, Quebec H3G 1M8, Canada.

Journal of hazardous materials

|July 4, 2025

概括

本研究介绍了一种使用表面活性剂的低压电洗 (EW) 方法来清洁被石油碳化合物 (PHC) 污染的土壤,有效地去除高达88%的污染物,特别是在富含粘土的土壤中.

科学领域:

环境科学环境科学
土壤修复土壤的修复.
电化学电化学电化学

背景情况:

原油泄漏带来了重大环境风险,需要有效地修复受污染的土壤.
传统的土壤洗方法往往是低效的,特别是在细粒度或粘土土壤.
电洗 (EW) 为土壤整治提供了一个可调节的,节能的替代方案.

研究的目的:

为了证明一个低压电洗 (EW) 方法用于石油碳化合物 (PHC) 污染的土壤,具有不同的土含量.
为了研究粘土分数和电压梯度对PHC去除效率的影响.
开发一种经验模型,将土壤特性和操作参数与修复结果相关联.

主要方法:

实验室规模的电洗电池被用来处理1公斤的土壤样本,使用0-5%的托尼特粘土.
采用了一种zwitterionic表面活性剂来增强PHC去除.
在为期四天的治疗期间,应用的电压梯度在1-3V/cm之间.

主要成果:

随着粘土含量和电压梯度的增加,PHC去除效率显著提高,达到88%的降低.
表面活性剂微粒的电流和电泳迁移促进了PHCs的运输.
在现场的电解允许回收石油和分离清洁水.

结论:

一种新的低能电动表面活性剂系统有效地修复了PHC污染的土,克服了传统方法的局限性.
开发的多项式模型根据粘土含量和电压 (R2 ≈ 0.93) 准确预测PHC去除.
电源回收是一种可行的,可持续的,适应现场的整治策略,具有资源回收的好处.

关键词:

电动洗衣机的使用方法多元组件污染的土壤污染石油回收利用石油回收利用石油泄漏导致的漏油事件重新利用水的方法兹维特里昂基基表面活性剂是什么

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