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Open AccessArticle

Advanced Oxidation Based Treatment of Soil Wash Water Contaminated with Sulfolane

1
Department of Water Resources, Federal University of Sergipe, Av. Marechal Rondon, São Cristóvão 49100-000, Brazil
2
Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
*
Author to whom correspondence should be addressed.
Water 2019, 11(10), 2152; https://doi.org/10.3390/w11102152
Received: 22 August 2019 / Revised: 8 October 2019 / Accepted: 9 October 2019 / Published: 16 October 2019
(This article belongs to the Special Issue Advances in Water and Wastewater Monitoring and Treatment Technology)
This study investigates advanced oxidation processes (AOPs) as post-treatment techniques to degrade sulfolane in soil washing water. Soil washing experiments were conducted with different soil/water ratios, shaking times, and number of extraction cycles. The soil wash water containing sulfolane was treated with four AOPs including H2O2/ultraviolet (UV), O3/UV, alkaline ozonation, and neutral Fenton reagent. Results show that sulfolane can be effectively removed from the soil using water as a washing solvent, where optimum conditions were found with 30 min of vigorous shaking, using 1:2 soil/water mass ratio, and a three-cycle extraction procedure. Moreover, the sulfolane in the soil wash water was also effectively degraded using appropriate AOPs. Among the four AOPs investigated, neutral Fenton was the least effective method to treat sulfolane in the wash water, while H2O2/UV, O3/UV, and alkaline ozonation can achieve more than 99% of sulfolane degradation within 1 h. View Full-Text
Keywords: advanced oxidation process; remediation; soil washing; sulfolane; UV advanced oxidation process; remediation; soil washing; sulfolane; UV
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MDPI and ACS Style

Brandão, M.; Yu, L.; Garcia, C.; Achari, G. Advanced Oxidation Based Treatment of Soil Wash Water Contaminated with Sulfolane. Water 2019, 11, 2152. https://doi.org/10.3390/w11102152

AMA Style

Brandão M, Yu L, Garcia C, Achari G. Advanced Oxidation Based Treatment of Soil Wash Water Contaminated with Sulfolane. Water. 2019; 11(10):2152. https://doi.org/10.3390/w11102152

Chicago/Turabian Style

Brandão, Mariana; Yu, Linlong; Garcia, Carlos; Achari, Gopal. 2019. "Advanced Oxidation Based Treatment of Soil Wash Water Contaminated with Sulfolane" Water 11, no. 10: 2152. https://doi.org/10.3390/w11102152

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