You need JavaScript to view this

Application of Ionizing Radiation on the Cork Wastewater Treatment

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.  More>>
Authors:
Melo, R.; Madureira, J.; Verde, S. Cabo; Nunes, I.; Santos, P. M.P.; Silva, T.; Leal, J. P.; Botelho, M. L. [1] 
  1. Instituto Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Sacavém (Portugal)
Publication Date:
Jul 01, 2012
Product Type:
Conference
Report Number:
IAEA-RC-1188.2
Resource Relation:
Conference: 2. research coordination meeting on radiation treatment of wastewater for reuse with particular on wastewaters containing organic pollutants, Jeongup (Korea, Republic of), 29 Oct - 2 Nov 2012; Other Information: 28 refs., 5 figs.; Related Information: In: Report of the 2nd RCM on Radiation Treatment of Wastewater for Reuse with Particular Focus on Wastewaters Containing Organic Pollutants. Working Material| 191 p.
Subject:
54 ENVIRONMENTAL SCIENCES; ANTIOXIDANTS; BACTERIA; BIODEGRADATION; CHEMICAL OXYGEN DEMAND; COLONY FORMING UNITS; CORK; ENVIRONMENTAL PROTECTION; ENVIRONMENTAL QUALITY; EVALUATION; FOOD PROCESSING; GALLIC ACID; GAMMA RADIATION; IRRADIATION; ORGANIC MATTER; PHENOLS; RADIOLYSIS; SALTS; SOCIO-ECONOMIC FACTORS; WASTE WATER; WATER TREATMENT
OSTI ID:
22309205
Research Organizations:
International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Contract Number:
Project IAEA CRP 1539
Other Identifying Numbers:
TRN: XA14M2969015378
Availability:
Available from INIS in electronic form. Also available on-line: http://www-naweb.iaea.org/napc/iachem/working_materials/RC-1188-2-report.pdf
Submitting Site:
INIS
Size:
page(s) 133-144
Announcement Date:
Mar 02, 2015

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}
}