PROFESSORS
Valeria Ochoa-Herrera
Ph.D. in Environmental Engineering, University of Arizona, USA
Office: Casa Tomate, CT-110
Phone: (+593 2) 297-1700, ext. 1208
E-mail: vochoa@usfq.edu.ec
Interests
Freshwater, treatment of domestic and industrial effluents, bioremediation, biofuels, environmental analytic chemistry, and sustainability.
Projects
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INTEGRATED SYSTEM OF THE TREATMENT OF ACID ROCK DRAINAGES FROM METAL MINING ACTIVITIES IN ECUADOR: This project seeks to design and implement an integrated system for the treatment of DARs from metal mining activities in Ecuador, combining Physicochemical processes and biological treatments on a pilot scale.
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ECUADOR WITHOUT FOOD WASTE: this project aims to promote behavioral changes starting from the company.
- REGULATORY AND FINANCIAL ANALYSIS ON PLASTICS IN THE ALLIANCE OF THE PACIFIC. BID PLASTICS.
- Analysis and monitoring of the water quality in San Cristobal, Galapagos.
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EVALUATION OF HEAVY METALS IN ECUADORIAN FRESHWATER ECOSYSTEMS.
Publications
| Year | Title | Authors | Document |
|---|---|---|---|
| 2020 | Governance Mechanisms and Barriers for Achieving Water Quality Improvements in Galapagos. | Cristina Mateus, Melanie Valencia, Kara DiFrancesco, Valeria Ochoa-Herrera, Todd Gartner and Diego Quiroga | Download |
| 2020 | New Ecuadorian records of the eyeless banjo catfish Micromyzon akamai (Siluriformes: Aspredinidae) expand the species range and reveal intraspecific morphological variation | Junior Chuctaya, Andrea C. Encalada, Karla S. Barragán, Maria L. Torres, Karla E. Rojas, Valeria Ochoa-Herrera, Tiago P. Carvalho | Download |
| 2020 | Determination of the Microbial and Chemical Loads in Rivers from the Quito Capital Province of Ecuador (Pichincha)—A Preliminary Analysis of Microbial and Chemical Quality of the Main Rivers | Pamela Borja-Serrano, Valeria Ochoa-Herrera, Laurence Maurice, Gabriela Morales, Cristian Quilumbaqui, Eduardo Tejera, António Machado | Download |
| 2020 | Heavy metal assessment in drinking waters of Ecuador: Quito, Ibarra and Guayaquil | Isabel Cipriani-Avila ; Jon Molinero ; Eliza Jara-Negrete ; Miren Barrado ; César Arcos ; Santiago Mafla ; Fernando Custode ; Gissela Vilaña ; Natalia Carpintero ; Valeria Ochoa-Herrera | Download |
| 2020 | The challenge of achieving safely managed drinking water supply on San Cristobal island, Galápagos | AM Grube, JR Stewart, V Ochoa-Herrera | Download |
| 2019 | Copper effect in sulfate removal using a fixed bed reactor | Cynthia Denisse Loreto Munoz, Maria Teresa Certucha Barragan, Francisco Javier Almendariz Tapia, Valeria Ochoa-Herrera, Onofre Monge Amaya | Download |
| 2019 | Actualización de la huella de carbono de la Universidad San Francisco de Quito para el año 2015 | Salazar, F., Valencia, M., Velasco, A., & Ochoa-Herrera, V. de L. | Download |
| 2019 | An Integrated Approach for Evaluating Water Quality between 2007-2015 in Santa Cruz Island in the Galapagos Archipelago. | Cristina Mateus, Christian A. Guerrero, Galo Quezada, Daniel Lara and Valeria Ochoa-Herrera | Download |
| 2019 | An integrative approach to identify the impacts of multiple metal contamination sources on the Eastern Andean foothills of the Ecuadorian Amazonia | Mariana Vellosa Capparelli, Gabriel Massaine Moulatlet, Denis Moledo de Souza Abessa, Oscar Lucas-Solis, Bryan Rosero, Emily Galarza, Damian Tuba, Natalia Carpintero, Valeria Ochoa-Herrera, Isabel Cipriani-Avila | Download |
| 2019 | Validating anthropogenic threat maps as a tool for assessing river ecological integrity in Andean-Amazon basins. PEERJ 7. | Lessmann, J., M. J. Troya, A. S. Flecker, W. C. Funk, J. M. Guayasamin, V. Ochoa-Herrera, N. L. Poff, E. Suarez, and A. C. Encalada. | Download |
| 2019 | Drinking water quality in areas impacted by oil activities in Ecuador: Associated health risks and social perception of human exposure | Laurence Maurice, Fausto López, Sylvia Becerra, Hala Jamhoury, Karyn Le Menach, Marie-Hélène Dévier, Hélène Budzinski, Jonathan Prunier, Guilhem Juteau-Martineau, Valeria Ochoa-Herrera, Diego Quiroga, Eva Schreck | Download |
| 2019 | Construcción y operación de una cámara anaeróbica de bajo costo para la siembra y el cultivo de bacterias sulfato reductoras | Aracely Zambrano-Romero, Nelson Herrera-Moreno, Gabriel Trueba, Reyes Sierra-Álvarez, Antonio León-Reyes, Valeria Ochoa-Herrera | Download |
| 2018 | Towards a Sustainable Energy-Efficient Future at Universities, Universidad San Francisco de Quito Case Study, Phase I | Melanie Valencia, Sofia Villacreses, Diego S Benítez, Alexandra Velasco, Valeria Ochoa-Herrera | Download |
| 2018 | Wastewater treatment for nutrient removal with Ecuadorian native microalgae | MB Benítez, P Champagne, A Ramos, AF Torres, V Ochoa-Herrera | Download |
| 2018 | Understanding the limits of assessing sustainability at Universidad San Francisco de Quito, Ecuador while reporting for a North American system | Velasco, A., Valencia, M., Morrow, S. and Ochoa-Herrera, V. | Download |
| 2018 | Changes in microbial composition during the removal of copper and zinc in a bioreactor with a limestone pre-column system | María Aracely Zambrano | Download |
| 2018 | Calidad de los rios y salud de los ecosistemas acuaticos en la Amazonia= Qualité des rivières et et santé des écosystèmes aquatiques en Amazonie | Laurence Maurice, J Mena, C Moreno, J Prunier, L Laffont, V Ochoa-Herrera, AC Encalada | Download |
| 2018 | El agua superficial y el agua de consume: riesgos para salud= L'eau de surface et l'eau de consomation: quels risques pour la santé des populations riveraines? | Laurence Maurice, Lopez F., Jamourhy H., Le Menach K., Devier M.H., Budzinski H., Ochoa-Herrera V., Schreck E. | Download |
| 2018 | Estimation of Landfill Methane Generation from Solid Waste Management Options in the Galapagos Islands | Rodny Peñafiel, Lucila Pesántez, Valeria Ochoa-Herrera | Download |
| 2017 | Distribution, contents and health risk assessment of metal(loid)s in small-scale farms in the Ecuadorian Amazon: an insight into oil activities impacts | Barraza, F., Maurice, L., Uzu, G., Becerra, S., Lopez, F., Ochoa-Herrera, V., Ruales, J. and Schreck, E. | Download |
| 2016 | Microbial toxicity and biodegradability of perfluorooctane sulfonate (PFOS) and shorter chain perfluoroalkyl and polyfluoroalkyl substances (PFASs) | Ochoa-Herrera, V.,Field, J.A., Luna-Velasco, A. and Sierra-Alvarez, R. | Download |
| 2015 | Analysis of major cations in bottom sediments from oil impacted rivers in the Ecuadorian Amazon | Pérez, C. G., Maurice, L., Ochoa-Herrera, V., López, F., Egas, D. A., Lagane, C. and Besson, P. | Download |
| 2015 | Electronic waste recycling campaign at Universidad San Francisco de Quito, Ecuador | Dalgo, D. Ochoa-Herrera, V., Pérez, G., Parra, R., Peñafiel, R., Sáenz, M. and Velasco, A. | Download |
| 2015 | Methane gas generation from palm oil mill effluent in experimental biodigesters | Garzon, P. Ochoa-Herrera, V. and Peñafiel, R. | Download |
| 2014 | Anaerobic digestion of fruit and vegetable wastes from Tumbaco's central market in Ecuador in semi-batch bioreactors – laboratory scale | Castelo, P., Peñafiel, R. and Ochoa-Herrera, V. | Download |
| 2014 | Sustainable algal growth in bench-scale reactors for biodiesel production in Ecuador | Ochoa-Herrera, V.,Ruiz, G., Dávila, A. G., Dischinger, S. and Peñafiel, R. | Download |
| 2014 | Contaminants as habitat disturbers: PAH-driven drift by andean paramo stream insects | Araujo, C.V.M., Moreira-Santos, M., Sousa, J. P., Ochoa-Herrera, V., Encalada, A. C., Ribeiro, R. | Download |
| 2014 | Active avoidance from a crude oil soluble fraction by an Andean paramo copepod | Araujo, C.V.M., Moreira-Santos, M., Sousa, J. P., Ochoa-Herrera, V., Encalada, A. C., Ribeiro, R. | Download |
| 2014 | A baseline analysis of the quality of water resources on San Cristóbal Island, Galápagos | Ochoa-Herrera, V., Eskew, O., Overbey, K., Palermo, F. and Peñafiel, R. | Download |
| 2013 | Effect of the substrate as electron donor during the microbial sulfate reduction and its posible applications in the biological treatment of acid mine drainage | Andrade, V. and Ochoa-Herrera, V. | Download |
| 2013 | On the role of vitamin B-12 in the reductive dehalogenation of perfluorinated persistent organic pollutants: A DFT study | Duenas-Fadic, M. E., Ochoa-Herrera, V., Mendez, M. A., Zambrano, C. H., Torres, F. J. | Download |
| 2013 | Tratamiento físico-químico de los drenajes ácidos de mina con piedra caliza | Ochoa-Herrera, V., Riofrío, L. and Peñafiel, R. | Download |
| 2013 | Remoción de contaminantes de aguas residuales del procesamiento de pieles mediante un reactor de mezcla controlada | Peñafiel, R., Cerón P., Ochoa-Herrera, V. | Download |
| 2011 | Toxicity of copper(II) ions to microorganisms in biological wastewater treatment systems | Ochoa-Herrera, V.,Leon, G., Banihani, Q., Field, J. A. and Sierra-Alvarez, R. | Download |
| 2011 | Developmentof Analytical Methods to Quantify Perfluorooctane Sulfonate and Related Compounds in the Environment | Valeria Ochoa-Herrera, Jim A Field, Reyes Sierra-Alvarez | Download |
| 2010 | Determinación de la Persistencia de Compuestos Perfluorinados en Plantas de Tratamiento de Aguas Residuales Municipales mediante LC-MS/MS | Ochoa-Herrera, V. Field, J.A., y Sierra-Alvarez, R. | Download |
| 2009 | Response to Comment by Sierra Rayne and Kaya Forest on "Ab Initio Study of the Structural, Electronic, and Thermodynamic Properties of Linear Perfluorooctane Sulfonate (PFOS) and its Branched Isomers" | Torres, F.J., Ochoa-Herrera, V., Blowers, P. and Sierra-Alvarez, R. | Download |
| 2009 | Ab initio study of the structural, electronic, vibrational and thermodynamic properties of linear perfluorooctane sulfonate (PFOS) and its branched isomers | Torres, F.J., Ochoa-Herrera, V., Blowers, P. and Sierra-Alvarez, R. | Download |
| 2009 | Toxicity of fluoride to microorganisms in biological wastewater treatment systems | Ochoa-Herrera, V.,Banihani, Q., León , G., Khatri, C., Field, J.A. and Sierra-Alvarez, R. | Download |
| 2008 | Removal of perfluorinated surfactants by sorption onto granular activated carbon, zeolite and sludge | Ochoa-Herrera, V.and Sierra-Alvarez, R. | Download |
| 2008 | Reductive Defluorination of Perfluorooctanesulfonate (PFOS) | Ochoa-Herrera, V., Sierra-Alvarez, R., Somogyi, A., Jacobsen, N., Wysocki, V., Field, J. | Download |
