Degradation of Atenolol in a Rectangular Staircase Photocatalytic Reactor with Immobilized ZnO

Abstract

Atenolol (ATL) was removed with a rectangular staircase photocatalytic reactor (RSPR) using immobilized ZnO under solar irradiation. The effects of operational parameters such as flow rate, pH, and initial ATL concentration were examined. The highest degradation was obtained after 240 min photocatalytic reaction. The effects of different scavengers proved that the ATL degradation was mainly due to the direct oxidization with OH• radicals, whereas, the h+ and O2•− radicals played a minor role in the degradation process. Five repetitive operations of RSPR allowed for reaching 77 ± 3 % degradation of ATL for each cycle. Kinetic data indicated that the photocatalytic kinetics followed the global matter balance model.

Nanocarbon Dimensionality and Oxidation Degree Influence the Sorption of Atenolol: Implications for Water Treatment

“…Large amounts of pharmaceutical compounds are continuously released into the environment and are associated with high human and veterinary consumption. This release can contaminate aquatic ecosystems, generating severe environmental and public health problems. , For example, one of the best-selling pharmaceuticals in the world is atenolol, a β-blocker used to treat cardiovascular disorders such as high blood pressure, angina, and irregular heart rhythms. As up to 50% of this pharmaceutical can be eliminated unchanged, what is not absorbed by the body can be released into sewage treatment plants.…”

Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review

“…Conventional wastewater treatment methods such as traditional chemical oxidation, magnetic separation, membrane, adsorption, ultrafiltration, and reverse osmosis are not only difficult to achieve complete degradation, but also have hard applications, high costs, and limited compatibility. As a result, advanced oxidation processes (AOPs) are used to treat refractory wastewater (Yahiaoui et al 2015;Madi-Azegagh et al 2019;Ikhlef-Taguelmimt et al 2020;Assassi et al 2021;Farid et al 2021). The advanced oxidation process based on persulfate (PS) has attracted much attention in recent years.…”