Experimental Study on the Remediation of Oil Contaminated Soil Using Ultrasound

Wen Zhang, Jianbing Li, Youding Han, Weikun Song
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引用次数: 3

Abstract

A series of orthogonal experiments were conducted to investigate the impact of ultrasound on the remediation of petroleum-contaminated soil. Five factors were examined, including initial oil concentration, soil-water ratio, soil type, sonication time and ultrasound power. The experimental results showed that the cleanup effect of ultrasound for oil contaminated soil was obvious. The soil type illustrated a significant influence on the TPH cleanup effect, while the TPH removal in four types of soils ranged from 46.7% to 83.1%. The experimental results suggested that ultrasonic desorption and subsequent filtration were the dominant mechanism for TPH reduction in the soil.
超声修复石油污染土壤的实验研究
通过正交试验研究超声波对石油污染土壤修复的影响。考察了初始油浓度、土水比、土壤类型、超声时间和超声功率5个因素。实验结果表明,超声波对石油污染土壤的净化效果明显。土壤类型对TPH清除效果有显著影响,4种土壤对TPH的去除率在46.7% ~ 83.1%之间。实验结果表明,超声波解吸和随后的过滤是土壤中TPH降低的主要机制。
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