Treatment of surfactant-rich industrial wastewaters with concentrated sunlight: toward solar wastewater remediation
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We report here on a photo-Fenton process powered by concentrated sunlight applied for the treatment of surfactant-rich (5–20 g/L) industrial wastewaters. Degradation yields of 89% in 2 min in homogenous and 23% in 1 h for heterogenous conditions pave the way for the development of a low-cost/high-yield wastewater treatment process. Employed as a preliminary stage in wastewater treatment plants or as a small-scale stand-alone operated by small-medium enterprises, it could reduce the environmental and economic impact of wastewaters.
KeywordsSurfactant Wastewater treatment Concentrated sunlight Photo-Fenton Catalysis
We gratefully acknowledge Nicola Bazzanella for technical help and useful discussions. Project ERICSOL of the University of Trento is acknowledged for financial support.
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Conflict of interest
The authors declare that they have no conflict of interest.
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