Electro ultrasonic remediation of polycyclic aromatic hydrocarbons from contaminated soil

被引：13

作者：

Shrestha, Reena Amatya ^{[1
]}

Pham, Thuy Duong ^{[1
]}

Sillanpaa, Mika ^{[1
]}

机构：

[1] Univ Kuopio, Lab Appl Environm Chem, Dept Environm Sci, FI-50100 Mikkeli, Finland

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2010年 / 40卷 / 07期

基金：

芬兰科学院;

关键词：

Chrysene; Electrokinetics; Electroosmosis; Soil remediation; Ultrasonic energy; HEAVY-METALS; SIMULTANEOUS REMOVAL; ORGANIC-COMPOUNDS; SONOCHEMISTRY; AVAILABILITY; PHENANTHRENE; DISSIPATION; DEGRADATION; OXIDATION; PHENOL;

D O I：

10.1007/s10800-010-0117-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The polycyclic aromatic hydrocarbons (PAHs) with high molecular mass are renown for their high persistence in the soil, hydrophobic and toxicity. Remediation of these pollutants is still an unsolved task and needs more researches to be performed. The coupling of electrokinetics (EK) with ultrasonic energy (US) has advantages on desorbing and migrating PAHs from contaminated soil. US and EK work together to destroy PAHs. The objective of this study was to treat PAHs contaminated soil by using EK and ultrasonication. The contaminated oil contained about 100 mg kg(-1) chrysene. Experiments with US, EK and combined EK and ultrasound were conducted in reactors and pans with and without iron anodes. Results indicated that the removal was more effective with lower concentrations of chrysene. The average removal was better in experiment with combined EK and ultrasound using iron anode. This might be due to increase in electroconductivity by iron ions.

引用

页码：1407 / 1413

页数：7

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