Solar photo-Fenton treatment of the anti-cancer drug anastrozole in different aqueous matrices at near-neutral pH: Transformation products identification, pathways proposal, and in silico (Q)SAR risk assessment

Electrochemical Technologies to Decrease the Chemical Risk of Hospital Wastewater and Urine

“…Results showed that it was possible to attain removal percentages higher than 95% in 120 min during the treatment of diluted urine (600 mg dm −3 iohexol) and values around 50% in 360 min when treating urine directly (6000 mg dm −3 ). On the other hand, the treatment of HWW polluted with 50 μg dm −3 anastrozole by solar photo-Fenton was reported by Sanabria et al [49]. They used 25 mg dm −3 H2O2 and a constant catalyst concentration of 10 mg dm −3 at pH 5, achieving removal percentages around 50% in 120 min.…”

Solar photo-oxidation of recalcitrant industrial wastewater: a review

“…Initially, contaminated wastewater has been shown to lose its toxicity after being treated with the photo-Fenton process before total mineralization. Toxicity is frequently followed by an increase in the biodegradability of treated wastewater (Fiorentino et al 2021;Sanabria et al 2021;Silva et al 2021).…”

Advanced Oxidation Processes Based on Sulfate Radicals for Wastewater Treatment: Research Trends

“…Among the main barriers detected, the scarce implementation of these advanced processes at a full scale in comparison to the available research and laboratory-scale tests is highlighted [7]. Moreover, when incomplete mineralization occurs, degradation or transformation by-products can be formed, which could cause more detrimental effects to the environment than the initial compounds [11,74,75]. Cai et al [76] found that the elimination of Orange II dye through a heterogeneous photodegradation using ZnFe 2 O 4 /PS enhanced by visible (VIS) radiation led to the generation of transformation products with higher toxicity compared to the toxicity associated with the original compound for a treatment time of 60 min using a dose of 0.5 g/L of ZnFe 2 O 4 , 1.0 g/L of PS and 150 W of radiation.…”

“…The pollutants contained in wastewater (WW) are a group of heterogeneous substances [8]. Besides pathogens, bacteria and genes resistant to antibiotics [9], the main pollutants include organic compounds such as pharmaceuticals, personal care products, perfluorinated compounds, pesticides, surfactants, flame retardants, dyes and a wide variety of industrial additives and synthetic chemical compounds [5,[10][11][12][13][14]. Among these pollutants, the group of emerging contaminants (ECs) stands out due to their bioaccumulable, persistent and toxic character, along with their carcinogenic and mutagenic potential, posing a risk to human health and the environment [15][16][17][18], and constituting a concern of great interest nowadays [19].…”

“…On the other hand, it is important to note that the WW conventional treatments cannot fully degrade ECs [6,[24][25][26], since they were not initially designed to eliminate this group of pollutants [14]. Furthermore, for the particular case of biological processes, their operation can be affected by the toxicity of pollutants to be treated, leading to the inhibition of the microorganisms responsible for the treatment [11]. Additionally, conventional disinfection treatments with chlorine or other halogens were found to generate disinfection by-products, which can exhibit a mutagenic and carcinogenic character [3,25].…”