Abstract
In the framework of the CRP on “Radiation treatment of wastewater for reuse with particular focus on wastewaters containing organic pollutants” Portuguese team is been developed studies on the implementation of ionizing radiation technology as a complementary treatment for industrial effluents and increase the added value of these wastewaters. Based on these assumptions, preliminary studies of the gamma radiation effects on the antioxidant compounds present in cork cooking water were carried out. Radiation studies were performed by using radiation between 20 and 50 kGy at 0.4 kGy/h and 2.4 kGy/h. The radiation effects on organic matter content were evaluated by Chemical Oxygen Demand (COD). The antioxidant activity was measured by Ferric Reducing Power (FRAP) assay. The total phenolic content was studied by Folin-Ciocalteau method. Results point out that gamma radiation increases both the amount of phenolic compounds and antioxidant capacity of cork cooking water. By the other hand, the radiolytic degradation by ionizing radiation of gallic acid and esculetin as models for recalcitrants were studied. The objective of this study was to find out if radiolytic degradation, followed by microbial degradation could increase the treatment efficiency. A natural cork wastewater bacterium was selected from the irradiated wastewater at 9 kGy.
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Melo, R.;
Madureira, J.;
Verde, S. Cabo;
Nunes, I.;
Santos, P. M.P.;
Silva, T.;
Leal, J. P.;
Botelho, M. L.
[1]
- Instituto Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Sacavém (Portugal)
Citation Formats
Melo, R., Madureira, J., Verde, S. Cabo, Nunes, I., Santos, P. M.P., Silva, T., Leal, J. P., and Botelho, M. L.
Application of Ionizing Radiation on the Cork Wastewater Treatment.
IAEA: N. p.,
2012.
Web.
Melo, R., Madureira, J., Verde, S. Cabo, Nunes, I., Santos, P. M.P., Silva, T., Leal, J. P., & Botelho, M. L.
Application of Ionizing Radiation on the Cork Wastewater Treatment.
IAEA.
Melo, R., Madureira, J., Verde, S. Cabo, Nunes, I., Santos, P. M.P., Silva, T., Leal, J. P., and Botelho, M. L.
2012.
"Application of Ionizing Radiation on the Cork Wastewater Treatment."
IAEA.
@misc{etde_22309205,
title = {Application of Ionizing Radiation on the Cork Wastewater Treatment}
author = {Melo, R., Madureira, J., Verde, S. Cabo, Nunes, I., Santos, P. M.P., Silva, T., Leal, J. P., and Botelho, M. L.}
abstractNote = {In the framework of the CRP on “Radiation treatment of wastewater for reuse with particular focus on wastewaters containing organic pollutants” Portuguese team is been developed studies on the implementation of ionizing radiation technology as a complementary treatment for industrial effluents and increase the added value of these wastewaters. Based on these assumptions, preliminary studies of the gamma radiation effects on the antioxidant compounds present in cork cooking water were carried out. Radiation studies were performed by using radiation between 20 and 50 kGy at 0.4 kGy/h and 2.4 kGy/h. The radiation effects on organic matter content were evaluated by Chemical Oxygen Demand (COD). The antioxidant activity was measured by Ferric Reducing Power (FRAP) assay. The total phenolic content was studied by Folin-Ciocalteau method. Results point out that gamma radiation increases both the amount of phenolic compounds and antioxidant capacity of cork cooking water. By the other hand, the radiolytic degradation by ionizing radiation of gallic acid and esculetin as models for recalcitrants were studied. The objective of this study was to find out if radiolytic degradation, followed by microbial degradation could increase the treatment efficiency. A natural cork wastewater bacterium was selected from the irradiated wastewater at 9 kGy. The applied methodology was based on the evaluation of growth kinetics of the selected bacteria by turbidimetry and colony forming units, in minimal salt medium with non-irradiated and irradiated phenolic as substrate. The overall obtained results highlights the potential of this technology for increase the add value of cork waters and raised some issues to explain by new methodological setup on biodegradation studies. (author)}
place = {IAEA}
year = {2012}
month = {Jul}
}
title = {Application of Ionizing Radiation on the Cork Wastewater Treatment}
author = {Melo, R., Madureira, J., Verde, S. Cabo, Nunes, I., Santos, P. M.P., Silva, T., Leal, J. P., and Botelho, M. L.}
abstractNote = {In the framework of the CRP on “Radiation treatment of wastewater for reuse with particular focus on wastewaters containing organic pollutants” Portuguese team is been developed studies on the implementation of ionizing radiation technology as a complementary treatment for industrial effluents and increase the added value of these wastewaters. Based on these assumptions, preliminary studies of the gamma radiation effects on the antioxidant compounds present in cork cooking water were carried out. Radiation studies were performed by using radiation between 20 and 50 kGy at 0.4 kGy/h and 2.4 kGy/h. The radiation effects on organic matter content were evaluated by Chemical Oxygen Demand (COD). The antioxidant activity was measured by Ferric Reducing Power (FRAP) assay. The total phenolic content was studied by Folin-Ciocalteau method. Results point out that gamma radiation increases both the amount of phenolic compounds and antioxidant capacity of cork cooking water. By the other hand, the radiolytic degradation by ionizing radiation of gallic acid and esculetin as models for recalcitrants were studied. The objective of this study was to find out if radiolytic degradation, followed by microbial degradation could increase the treatment efficiency. A natural cork wastewater bacterium was selected from the irradiated wastewater at 9 kGy. The applied methodology was based on the evaluation of growth kinetics of the selected bacteria by turbidimetry and colony forming units, in minimal salt medium with non-irradiated and irradiated phenolic as substrate. The overall obtained results highlights the potential of this technology for increase the add value of cork waters and raised some issues to explain by new methodological setup on biodegradation studies. (author)}
place = {IAEA}
year = {2012}
month = {Jul}
}