Degradation of Endocrine Disrupting Chemicals Bisphenol A, Ethinyl Estradiol, and Estradiol during UV Photolysis and Advanced Oxidation Processes

2004 ◽  
Vol 38 (20) ◽  
pp. 5476-5483 ◽  
Author(s):  
Erik J. Rosenfeldt ◽  
Karl G. Linden
Keyword(s):  
Bisphenol A ◽  
Advanced Oxidation Processes ◽  
Ethinyl Estradiol ◽  
Endocrine Disrupting Chemicals ◽  
Advanced Oxidation ◽  
Uv Photolysis ◽  
Oxidation Processes ◽  
Endocrine Disrupting

scholarly journals Comparison of Various Advanced Oxidation Processes for the Degradation of Bisphenol A

2017 ◽  
pp. 147
Author(s):  
Naser Jamshidi ◽  
Farzad Nezhad Bahadori ◽  
Ladan Talebiazar ◽  
Ali Akbar Azimi
Keyword(s):  
Bisphenol A ◽  
Uv Irradiation ◽  
Advanced Oxidation Processes ◽  
Irradiation Time ◽  
Advanced Oxidation ◽  
Chemical Oxidation ◽  
Photochemical Oxidation ◽  
Input Concentration ◽  
Oxidation Processes ◽  
Ph Range

Today, advanced oxidation processes (AOPs) is considered as a key and effective method for environment preservation from pollutions. In this study , advanced photochemical oxidation processes using O3/H2O2 and O3/H2O2/UV systems were investigated batch photolytic reactor in lab-scale for the degradation of bisphenol A (BPA). In ozone generator source, air, as of the initial instrument feed, changes to ozone after electrical action and reaction. The UV irradiation source was a medium-pressure mercury lamp 300 W that was immerse in the wastewater solution with in 1.5 liter volume reactor. The reaction was influenced by the pH, the input concentration of H2O2, the input concentration of BPA, ozone dosage, chemical oxidation demand (COD) and UV irradiation time. Results showed that at initial bisphenol A concentration of 100 mg/l will completely degrade after 60 minutes by using O3/H2O2 in the pH range from 9.8 to 10 and by adding UV, it will happen in less than 36 minutes in the pH range of 3 to 10. The O3/H2O2/UV process reduced COD to 75 percents.

scholarly journals Comparison of advanced oxidation processes in the decomposition of diuron and monuron – efficiency, intermediates, electrical energy per order and the effect of various matrices

2018 ◽  
Vol 4 (9) ◽  
pp. 1345-1360 ◽  
Author(s):  
János Farkas ◽  
Máté Náfrádi ◽  
Tamás Hlogyik ◽  
Bartus Cora Pravda ◽  
Krisztina Schrantz ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Electrical Energy ◽  
Heterogeneous Photocatalysis ◽  
Uv Photolysis ◽  
Oxidation Processes ◽  
Electrical Energy Per Order

The efficiency of UV-photolysis, ozonation, their combination and heterogeneous photocatalysis was investigated and compared in various matrices.

Application of Ozonation, UV Photolysis, Fenton Treatment and other Related Processes for Degradation of Ibuprofen and Sulfamethoxazole in Different Aqueous Matrices

2012 ◽  
Vol 15 (2) ◽  
Author(s):  
Irina Epold ◽  
Niina Dulova ◽  
Yelena Veressinina ◽  
Marina Trapido
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Uv Photolysis ◽  
Oxidation Processes ◽  
Aqueous Matrices

AbstractTwo pharmaceuticals ibuprofen (IBP) and sulfamethoxazole (SMX) were treated with ozone and advanced oxidation processes (AOPs): UV photolysis, O

scholarly journals Toxicology Aspects of the Decomposition of Diuron by advanced Oxidation Processes

2015 ◽  
Vol 43 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Tünde Alapi ◽  
Gergő Simon ◽  
Gábor Veréb ◽  
Krisztina Kovács ◽  
Eszter Arany ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Heterogeneous Photocatalysis ◽  
Point Of View ◽  
Transformation Rate ◽  
Uv Photolysis ◽  
Oxidation Processes ◽  
Ultraviolet Photolysis ◽  
Multicomponent Solutions ◽  
Residual Herbicide

Abstract Diuron is a phenylurea-based residual herbicide with toxic and endocrine disrupting effects. The aims of the present work were the comparison of the efficiency of various advanced oxidation processes, such as direct ultraviolet photolysis, ozonation, their combination, and heterogeneous photocatalysis from the point of view of the transformation rate of diuron, rate of mineralisation and dehalogenation, formation of aromatic intermediates, and ecotoxicological effects of the formed multicomponent solutions during the treatments. The initial rates of transformation of diuron are in the order of ozonation < heterogeneous photocatalysis < UV photolysis < combination of UV photolysis and ozonation. Each method provided similar tendencies in the decrease of the concentration of organically bound chlorines (AOX) since, until the diuron was completely degraded, the concentration of AOX decreased almost to zero in each case. However, only heterogeneous photocatalysis was found to be effective in terms of mineralisation. Ecotoxicological results showed that in each case, except for ozonation, the toxicity of the treated solutions changed through a maximum during the transformation of diuron. The maximum value was found to be lower in the case of heterogeneous photocatalysis. Thus, the formation and decomposition of by-products of relatively higher toxicity than diuron can be supposed. Our results confirmed that the amount of the formed (aromatic) intermediates, their quality and specific toxicity strongly depend on the applied processes.

scholarly journals Efficiency of advanced oxidation processes in lowering bisphenol A toxicity and oestrogenic activity in aqueous samples

2014 ◽  
Vol 65 (1) ◽  
pp. 77-87 ◽  
Author(s):  
Maja Plahuta ◽  
Tatjana Tišler ◽  
Mihael Jožef Toman ◽  
Albin Pintar
Keyword(s):  
Chemical Analysis ◽  
Bisphenol A ◽  
Photocatalytic Oxidation ◽  
Advanced Oxidation Processes ◽  
Vibrio Fischeri ◽  
Advanced Oxidation ◽  
Aqueous Samples ◽  
Yeast Saccharomyces Cerevisiae ◽  
Oxidation Processes ◽  
Set Up

Summary Bisphenol A (BPA) is a well-known endocrine disruptor with adverse oestrogen-like effects eliciting adverse effects in humans and wildlife. For this reason it is necessary to set up an efficient removal of BPA from wastewaters, before they are discharged into surface waters. The aim of this study was to compare the efficiency of BPA removal from aqueous samples with photolytic, photocatalytic, and UV/H2O2 oxidation. BPA solutions were illuminated with different bulbs (halogen; 17 W UV, 254 nm; and 150 W UV, 365 nm) with or without the TiO2 P-25 catalyst or H2O2 (to accelerate degradation). Acute toxicity and oestrogenic activity of treated samples were determined using luminescent bacteria (Vibrio fischeri), water fleas (Daphnia magna), zebrafish embryos (Danio rerio), and Yeast Estrogen Screen (YES) assay with genetically modified yeast Saccharomyces cerevisiae. The results confirmed that BPA is toxic and oestrogenically active. Chemical analysis showed a reduction of BPA levels after photolytic treatment and 100 % conversion of BPA by photocatalytic and UV/H2O2 oxidation. The toxicity and oestrogenic activity of BPA were largely reduced in photolytically treated samples. Photocatalytic oxidation, however, either did not reduce BPA toxic and oestrogenic effects or even increased them in comparison with the baseline, untreated BPA solution. Our findings suggest that chemical analysis is not sufficient to determine the efficiency of advanced oxidation processes in removing pollutants from water and needs to be complemented with biological tests.

Efficiency of different solar advanced oxidation processes on the oxidation of bisphenol A in water

2010 ◽  
Vol 95 (3-4) ◽  
pp. 228-237 ◽  
Author(s):  
Eva M. Rodríguez ◽  
Guadalupe Fernández ◽  
Nikolaus Klamerth ◽  
M. Ignacio Maldonado ◽  
Pedro M. Álvarez ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Solar Advanced Oxidation Processes
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