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CADOX – A
Coupled Advanced Oxidation-Biological Process for Recycling of Industrial
Wastewater Containing Persistent Organic Contaminants |
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Participants:
Contact:
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View
of the pre-industrial plant based on photo-Fenton and immobilized biomass
activated sludge reactor. |
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Funding:
Duration:
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Objective:
Develop a
commercial closed-loop hybrid technology based on the integration of solar
Advanced Oxidation Processes (AOPs) and biological processes for the
remediation of industrial waste water contaminated by organic pollutants. |
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Background:
Under the Water
Framework Directive 2000/60/EU, Directive 91/271/EEC and Directive
98/15/EEC, protecting water resources and aquatic environments, absolute
zero emission of priority substances (PS) and reduction of industrial
emissions or pollutant discharge into water collecting systems (by secondary
water treatment before wastewater discharge) will be compulsory in Europe in
the next few years.
http://www.psa.es/webeng/projects/cadox/index.html
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Achievements in
2006:
A pre-industrial
water treatment plant with a 4 m3 daily capacity was constructed and tested
using a solar photo-Fenton reactor with 100 m2 of CPCs and an immobilized
biomass activated sludge reactor (1 m3). The overall conversion efficiency
of the combined system was around 95% mineralization, i.e., 50% of the
initial total organic carbon (TOC) was degraded in the photo-Fenton pre-treatment,
while the remaining 45% was removed in the aerobic biological treatment. The
project has concluded.
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Publications:
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Lapertot M.,
Pulgarín C., Fernández-Ibáñez P., Maldo-nado M.I., Pérez-Estrada L.,
Oller I., Gernjak W., Malato S. (2006) Enhancing biodegradability of
priority substances (pesticides) by solar photo-Fenton, Wat. Res. 40,
1086-1064.
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Hincapié M.,
Peñuela G., Maldonado M.I., Malato O., Fernández-Ibáñez P., Oller I.,
Gernjak W., Malato S. (2006) Degradation of pesticides in water using
solar advanced oxidation processes, Applied Catalysis B: Environmental
64, 272-281.
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