VILLAR-NAVARRO, Elena, Irina LEVCHUK, Juan José RUEDA-MÁRQUEZ, Tomáš HOMOLA, Miguel Ángel MORIÑIGO, Riku VAHALA a Manuel MANZANO. Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods. Solar Energy. Elsevier Ltd., 2021, roč. 227, October, s. 477-489. ISSN 0038-092X. Dostupné z: https://dx.doi.org/10.1016/j.solener.2021.09.029. |
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@article{1793118, author = {VillarandNavarro, Elena and Levchuk, Irina and RuedaandMárquez, Juan José and Homola, Tomáš and Moriñigo, Miguel Ángel and Vahala, Riku and Manzano, Manuel}, article_number = {October}, doi = {http://dx.doi.org/10.1016/j.solener.2021.09.029}, keywords = {Aquaculture streams; UVA-based AOPs; Solar AOPs; Low temperature}, language = {eng}, issn = {0038-092X}, journal = {Solar Energy}, title = {Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods}, url = {https://doi.org/10.1016/j.solener.2021.09.029}, volume = {227}, year = {2021} }
TY - JOUR ID - 1793118 AU - Villar-Navarro, Elena - Levchuk, Irina - Rueda-Márquez, Juan José - Homola, Tomáš - Moriñigo, Miguel Ángel - Vahala, Riku - Manzano, Manuel PY - 2021 TI - Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods JF - Solar Energy VL - 227 IS - October SP - 477-489 EP - 477-489 PB - Elsevier Ltd. SN - 0038092X KW - Aquaculture streams KW - UVA-based AOPs KW - Solar AOPs KW - Low temperature UR - https://doi.org/10.1016/j.solener.2021.09.029 N2 - In this work the effect of water temperature (6 ± 1 °C and 22 ± 1 °C) on inactivation of bacteria (104 –106 CFU mL−1; Pseudomonas spp., Aeromonas spp. and Enterobacter spp.) in simulated aquaculture streams (SAS) using UVA based advanced oxidation processes (AOP) (H2O2-assisted UVA; photocatalysis; H2O2-assisted photocatalysis) and solar driven AOPs (H2O2-assisted solar disinfection, SODIS) was studied. Efficiency at 22 °C in terms of inactivation rate was higher using H2O2-assisted photocatalysis (H2O2/UVA-TiO2/polysiloxane) > H2O2-assisted UVA disinfection (UVA/H2O2 – 10 mg L-1) > photocatalysis (UVA-TiO2/polysiloxane) > UVA disinfection. At low temperature (6 °C) the inactivation rate increased with SODIS/H2O2 > SODIS > H2O2-assisted UVA disinfection (UVA/H2O2 – 10 mg L-1) > H2O2-assisted photocatalysis (H2O2/UVA-TiO2/polysiloxane) > photocatalysis (UVA-TiO2/polysiloxane). The main results indicate that the inactivation rates increased when hydrogen peroxide (10 mg L-1) was used during H2O2-assisted UVA disinfection and photocatalysis. In addition, exposure of SAS to hydrogen peroxide for 24 h (in absence of light) at room temperature decreased the subsequent exposure UVA irradiation dose by almost four times. Drastic increase of inactivation rate was observed at low water temperature (6 ± 1 °C) when UVA- and solar-based AOPs were employed compared to 22 ± 1 °C. The treatment with SODIS proved to be more effective in Finland than in Spain. The effect of the low temperature (6 ± 1 °C) was proposed as a critical factor during UVA disinfection (UVA/H2O2 and photocatalysis) that can increase the disinfection rate constant (kmax) by 1.3–5.2 times, leading to a reduction of the treatment costs (€ m−3) by 1.3–3.3 times. The mechanism of observed enhanced disinfection at low water temperature (6 ± 1 °C) when natural solar light and UVA are employed as irradiation sources for UVA/H2O2 and photocatalytic bacteria inactivation was proposed. No regrowth was observed in case of H2O2-assisted AOPs. ER -
VILLAR-NAVARRO, Elena, Irina LEVCHUK, Juan José RUEDA-MÁRQUEZ, Tomáš HOMOLA, Miguel Ángel MORIÑIGO, Riku VAHALA a Manuel MANZANO. Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods. \textit{Solar Energy}. Elsevier Ltd., 2021, roč.~227, October, s.~477-489. ISSN~0038-092X. Dostupné z: https://dx.doi.org/10.1016/j.solener.2021.09.029.
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