Degradation of seventeen contaminants of emerging concern in municipal wastewater effluents by sonochemical advanced oxidation processes

Water Research
Efraim A Serna-GalvisRicardo A Torres-Palma

Abstract

The simultaneous degradation of seventeen emerging concern pollutants in effluent from the municipal wastewater treatment plant (MWTP) of Bogotá-Colombia was studied using high frequency ultrasound (375 kHz). The considered compounds in the effluent corresponded to pharmaceuticals (diclofenac, carbamazepine, venlafaxine, ciprofloxacin, norfloxacin, valsartan, losartan, irbesartan, sulfamethoxazole, clarithromycin, azithromycin, erythromycin, metronidazole, trimethoprim and clindamycin); cocaine and its major metabolite benzoylecgonine. Due to limitation of the MWTP for the pollutants elimination, ultrasound was applied to remove these compounds. Interestingly, ultrasonic physical action led to releasing of ciprofloxacin, norfloxacin, diclofenac and sulfamethoxazole from suspended solids, whereas the chemical effects induced degradation of the rest of compounds. For the latter ones, an interesting correlation between the sonodegradation and arithmetic multiplication between hydrophobicity and concentration of pollutants was established. Afterwards, the sonochemical process was complemented with ferrous ions (sono-Fenton), ferrous ions plus light (sono-photo-Fenton) or ferrous ions plus light in presence of oxalic acid (sono-phot...Continue Reading

Citations

Sep 1, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Yu Han YuChin Pao Huang
Sep 25, 2020·Environmental Science and Pollution Research International·Michel Zampieri FidelisOnelia Aparecida Andreo Dos Santos
Feb 13, 2021·The Science of the Total Environment·Diana Martínez-PachónAlejandro Moncayo-Lasso
May 14, 2021·Environmental Science and Pollution Research International·Alexandre DiórioVítor J P Vilar
Nov 11, 2019·The Science of the Total Environment·Abeer Al-BsoulMohammad Alsheyab
Jul 3, 2021·Environmental Science and Pollution Research International·Kazım KöseLokman Uzun
Jul 16, 2021·Environmental Science and Pollution Research International·Lis Manrique-LosadaRicardo A Torres-Palma
Feb 6, 2020·Chemical Reviews·Sara Rojas, Patricia Horcajada

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