Comparison of different advanced oxidation processes for the removal of amoxicillin in aqueous solution

Abstract

Amoxicillin (AMX) is a widely used penicillin-type antibiotic whose presence in the environment has been investigated. In this work, the degradation of the AMX in aqueous solutions by ozonation, ozonation with UV radiation (O/UV), homogeneous catalytic ozonation (O/Fe) and homogeneous photocatalytic ozonation (O/Fe/UV) was investigated. The performance results have been compared in terms of removal of amoxicillin and total organic carbon (mineralization efficiency). In all processes, complete amoxicillin degradation was obtained after 5 min. However, low mineralization was achieved. For the best available process, the potential toxicity of AMX intermediates formed after ozonation was examined using a Fish Embryo Toxicity test. Results reveal that O in alkaline solution and O/Fe/UV provide the highest mineralization rates. Ecotoxicity showed that no acute toxicity was observed during the exposure period of 96 h.

Tungsten Trioxide (WO3)-assisted Photocatalytic Degradation of Amoxicillin by Simulated Solar Irradiation

“…Therefore, the degradation of AMO does not necessarily lead to the complete mineralization of the products and transformed intermediates of AMO. It should be kept in mind that intermediate products can be toxic in aquatic environments 58,59 , thus the optimization of the process parameters should also target complete mineralization as an end goal.…”

A comparative study on ozone, hydrogen peroxide and UV based advanced oxidation processes for efficient removal of diethyl phthalate in water

“…They also reported that ozone-photo-Fenton had the lowest electrical energy per order (0.01 kWh/m 3 ). Other comparative studies on various AOPs have also reported varying results between the types of AOPs studied [36][37][38].…”

Fatores Relacionados as Infecções Hospitalares Por Bactérias: Uma Revisão Narrativa

“…KEYWORDS: biodegradation, adsorption, biofilm, acetylsalicylic acid, microbial diversity. (BORGES et al, 2016;ISMAIL et al, 2017;CHOPRA, 2018;LIU et al, 2020;PANIGRAHY et al, 2020;SOUZA et al, 2018;TIWARI et al, 2017;VONA et al, 2015;ZHI et al, 2019 Algumas vantagens que a biofiltração apresenta são: i) construção e operação mais simples; ii) oferece um aumento na vida útil dos filtros; iii) de custo relativamente baixo; iv) opera à temperatura ambiente; v) eficaz em baixas concentrações e altas taxas de fluxo;…”