Micropollutants removal by full-scale UV-C/sulfate radical based Advanced Oxidation Processes

2018 ◽  
Vol 630 ◽  
pp. 1216-1225 ◽  
Author(s):  
J. Rodríguez-Chueca ◽  
E. Laski ◽  
C. García-Cañibano ◽  
M.J. Martín de Vidales ◽  
Á. Encinas ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Full Scale ◽  
Sulfate Radical ◽  
Oxidation Processes ◽  
Uv C

scholarly journals Intensification of UV-C tertiary treatment: Disinfection and removal of micropollutants by sulfate radical based Advanced Oxidation Processes

2019 ◽  
Vol 372 ◽  
pp. 94-102 ◽  
Author(s):  
J. Rodríguez-Chueca ◽  
C. García-Cañibano ◽  
R.-J. Lepistö ◽  
Á. Encinas ◽  
J. Pellinen ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Sulfate Radical ◽  
Tertiary Treatment ◽  
Oxidation Processes ◽  
Uv C

scholarly journals Degradation of the pharmaceuticals lamivudine and zidovudine using advanced oxidation processes

2020 ◽  
Vol 42 ◽  
pp. e9
Author(s):  
Alex Leandro Andrade de Lucena ◽  
Daniella Carla Napoleão ◽  
Hélder Vinícius Carneiro da Silva ◽  
Rayany Magali da Rocha Santana ◽  
Beatriz Galdino Ribeiro ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Kinetic Studies ◽  
Degradation Process ◽  
Oxidation Processes ◽  
First Order ◽  
Input Variables ◽  
Pharmaceutical Degradation ◽  
Uv C

The existence of pharmaceuticals in nature is a growing environmental problem, turning necessary the use of efficient treatments for the degradation of these substances, as the advanced oxidation processes (AOPs). In this work the AOPs UV/H2O2 and photo-Fenton were applied to degrade the pharmaceuticals lamivudine and zidovudine in an aqueous solution using a bench reactor, composed of three UV-C lamps. It was verified that the UV/H2O2 process presented a degradation of 97.33 ± 0.14% for lamivudine and 93.90 ± 0.33% for zidovudine, after 180 min of treatment and for an initial concentratin of each pharmaceutical of  5 mg.L-1 and [H2O2] of 600 mg.L-1.  A methodology by artificial neural networks (ANNs) was used to model the photocatalytic process, with the MLP 7-23-2 ANN representing it well, and determining the relative importance (%) of each of the input variables for the pharmaceutical’s degradation process. Kinetic studies for the pharmaceutical degradation and the conversion of organic matter showed good adjustments to the pseudo first-order models with R2 raging from 0.9705 to 0.9980. Toxicity assays for the before treatment solution indicated that the seeds Lactuca sativa and Portulaca grandiflora showed growth inhibition whereas the post-treatment solution inhibited only the growth of Lactuca sativa.

Limitations and prospects of sulfate-radical based advanced oxidation processes

2020 ◽  
Vol 8 (4) ◽  
pp. 103849 ◽  
Author(s):  
Xiaodi Duan ◽  
Shanshan Yang ◽  
Stanisław Wacławek ◽  
Guodong Fang ◽  
Ruiyang Xiao ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Sulfate Radical ◽  
Oxidation Processes
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