biosolar-detox

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Colombia

Environnements, gestion des ressources

Procédés de dépollution

9.2004 – 8.2008

Summary


Development of a coupled solar-biological system for the disinfection and elimination of organic contaminants in drinking and waste in rural areas of Colombia. Acronym : Biosolar Detox

Partner Institutions

Institution: Universidad del Valle
Department: Chemical Engineering, Chemistry
Address: A.A. 25360, UNIVALLE, Sede, Melendez, Cali,
Colombia
Phone: +57 (2) 339 32 48, ext. 115
Direction: Janeth Sanabria
Norberto Benitez
Colleagues: Fiderman Machuca,
Luz Edith Barba Ho,
Peña Miguel,
Carlos Diesrolf
Julia Rosa Caicedo

EPFL

Institute: Institut de Sciences et Ingénierie Chimique (ISIC)
Groupe de génie électrochimique (GGEC)
Faculty: Sciences de Base (SB)
Address: Station 6, Ecublens
1015 Lausanne, Suisse
Phone: +41 21 – 693 47 20
Direction: Dr Cesar Pulgarin
Colleagues:

Summary

The available good-quality drinking water in Colombia is dramatically decreasing, especially in rural and small towns, due to the insufficiency of wastewater treatment systems. This factor poses risks to human health by the accumulation in drinking water sources of pathogenic microorganisms (biological risk) and toxic pollutants (chemical risk). Moreover, the water deficit obliged farmers to carry out irrigation with microbiologically and chemically contaminated waters. These facts, point out to the need to developing appropriate treatment technologies for wastewaters treatment as well as for drinking water production.

Development of technologies that use solar light for disinfection and chemical decontamination is suitable in countries with high solar energy as Colombia. The helio-photo-catalytic technology studied in this project, uses the energy from the sunlight to generate, on a catalyst (TiO 2 or Fe 3+) , the very reactive hydroxyl radical (°OH), which is capable of attacking both microbiological and chemical water contaminants in water. This project addresses the development and evaluation of a fully autonomous on-site system for disinfection and elimination of organic contaminants in drinking waters and wastewaters in rural areas of Colombia. This general objective will be achieved through the execution of a work plan consisting of 5 different work packages: (1) scientific studies for drinking water, (2) scientific studies for waste water, (3) design, built, optimization, and coupling of solar and biological reactors, (4) technological evaluation in real conditions, and (5) technology diffusion. The final system is expected to have remarkable technical features as well as social, development, and environmental implications.

Publications

International journal

  • Rengifo Julian, Sanabria, G.J., Machuca F., Dierolf, C., Pulgarin, C.,Orellena, G. A comparison of Solar photocatalytic Inactivation of waterborne E. Coli Using Tris(2,2′-bipiridine) Ruthenium (II) Rose Bengal and TiO2. Journal of Solar Energy Engineering, 2005. In press

Symposium and congress

  • Dahyana Aristizabal, Alejandro Moncayo, Angela-Guiovana Rincón, Norberto Benítez, César Pulgarín. Degradacion foto-fenton de precursores de DBPs, en aguas naturales utilizadas en la obtención de agua potable, empleando un reactor solar CPC. Solarsafewater, Puerto Iguazu, Argentina, 2005.
  • Mora Luís Enrique, Moncayo Alejandro, Mendoza Claudia, Rengifo Julián, Parra Sandra, Barba Ho Luz Edith, Machuca Fiderman, Peña Miguel, Dierolf Carlos, Benítez Norberto, Sanabria Janeth, Pulgarin Cesar. Development of a coupled solar-biological system for disinfection and renoval of organic contaminants in driking and waste water. an cooperation research project between the Swiss Federal Institut of Technology in Lausanne (EPFL) and UNIVALLE, Colombia. Conferencia Internacional : De la Accion Local a las Metas Globales. Agua 2005, Cali, Colombia, 2005.
  • Sanabria Janeth, Dierolf Carlos y Mora Luís Enrique Nuevas tecnologías para la desinfección de aguas y microorganismos emergentes . Seminario Internacional : Visión Integral en el mejoramiento de la Calidad de Agua. Agua 2005, Cali, Colombia, 2005.
  • Dierolf Carlos. El recurso solar para el tratamiento de agua : la ventaja comparativa del tropico. Seminario Internacional: Visión Integral en el mejoramiento de la Calidad de Agua. Agua 2005, Cali, Colombia, 2005.
  • Lopez Andrés Felipe, Colina José Angel. Decoloracion fotocatalitica de azul de metileno en agua. Seminario Internacional : Visión Integral en el mejoramiento de la Calidad de Agua. Agua 2005, Cali, Colombia, 2005.
  • Lopez Andrés Felipe, Colina José Angel. Fotodegradacion catalitica del pesticida 2,4-d amina 4. Seminario Internacional : Visión Integral en el mejoramiento de la Calidad de Agua. Agua 2005, Cali, Colombia, 2005.

Diplomes

Dahyana Aristizabal., Degradacion de DBPPs mediante el proceso foto-Fenton y el uso de un CPC en aguas superficiales. Gradp : Quimico, Universidad del Valle. Director : Norberto Benítez. Cali, 2005.