PROFESSORS
Valeria Ochoa
PhD Environmental Engineering, University of Arizona, Tucson, AZ, USA
Office: CT-110
Phone: (+593 2) 297-1700, Ext. 1208
E-mail: vochoa@usfq.edu.ec
Interests
Freshwater quality, biological and physico-chemical wastewater treatment, anaerobic bioremediation, and sustainability
Projects
- Pesticide exposure in children and adolescents and associated neurobehavioral outcomes
- Integrated system for the treatment of acid rock drainages from mining activities in Ecuador
- Regulatory and financial analysis for the circular economy initiative for the sustainable management of plastics in the Pacific Alliance countries: Colombia, México, Perú and Chile, and Ecuador
- Wastewater treatment with native microalgal-bacterial consortia from the Ecuadorian Amazon, the Andean Region and the Galapagos Islands
- Long-term Monitoring Program on Water Quality at San Cristobal, Galapagos
Publications
| Year | Title | Authors | Document |
|---|---|---|---|
| 2021 | Challenges to water management in Ecuador: Legal authorization, quality parameters, and socio-political responses | Wingfield, S., Martínez-Moscoso, A., Quiroga, D., and Ochoa-Herrera, V | Download |
| 2021 | Household preferences for improved water services in the Galápagos Islands | Vásquez, W. F., Raheem, N., Quiroga, D., Ochoa-Herrera, V. | Download |
| 2021 | Synthesis of doped and undoped Bi1-xMxFeO3 porous networks (M=La, Gd, Nd; x= 0, 0.03, 0.05, 0.10) with enhanced visible-light photocatalytic activity | Cadenbach, T., Santillan, P., Morales, A. L., Benitez, M. J., Moncada, F., Lascano, L., Costa-Vera, C., Ochoa-Herrera, V., Vizuete, K., and Debut, A. | Download |
| 2021 | Concentrations and stable isotopes of mercury in sharks of the Galapagos Marine Reserve: Human health concerns and feeding patterns | Maurice, L., Le Croizier, G., Morales, G., Carpintero, N., Guayasamin, J. M., Sonke, J., Páez-Rosas, D., Point, D., Bustos, W., Ochoa-Herrera, V. | Download |
| 2021 | Prospects of microalgae for biomaterial production and environmental applications at biorefineries | Orejuela-Escobar, L., Gualle, A., Ochoa-Herrera, V., and Philippidis, G. | Download |
| 2021 | Optimization of a gas chromatography methodology for biodiesel analysis | Ponce, E. L., Ochoa-Herrera, V., Quintanilla, F., Egas, D. A., and Mora, J. R. | Download |
| 2021 | Agua para Galápagos”: un programa de monitoreo de la calidad del agua en las islas Galápagos | Vernaza, W., Pozo, R., Mateus, C., Quiroga, D., Stewart, J., Thompson, A., Raheem, N. and Ochoa-Herrera, V. | Download |
| 2020 | New Ecuadorian records of the eyeless banjo catfish Micromyzon akamai (Siluriformes: Asprendinidae) expand the species range and reveal intraspecific morphological variation | Chuctaya, J., Encalada, A. C., Barragán, K. S., Torres, M. L., Rojas, K., Ochoa-Herrera, V. and Carvalho, T. P. | Download |
| 2020 | Heavy metal assessment in drinking waters of Ecuador: Quito, Ibarra and Guayaquil | Cipriani-Avila, E, Molinero, J., Jara-Negrete, E., Barrado, M., Arcos, C., Mafla, S., Custode, F., Vilaña, G., Carpintero, N., Ochoa-Herrera, V. | Download |
| 2020 | Governance mechanisms and barriers for achieving water quality improvements in Galapagos | Mateus, C., Valencia, M., DiFrancesco, K., Ochoa-Herrera, V., Gartner, T. and Quiroga, D. | 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 | Borja-Serrano, P., Ochoa-Herrera, V., Maurice, L., Morales, G., Quilumbaqui, C., Tejera, E. and Machado, A. | Download |
| 2020 | The challenge of achieving safely managed drinking water supply on San Cristobal Island, Galapagos | Grube, A., Stewart, J. and Ochoa-Herrera, V. | Download |
| 2020 | An integrative approach to identify the impacts of multiple metal contamination sources on the Eastern Andean foothills of the Ecuadorian Amazonia | Capparelli, M. V., Massaine, G. M., Abessa, D.M.S., Lucas-Solis, M, Rosero, B., Galarza, E., Tuba, D., Carpintero, N., Ochoa-Herrera, V. and Cipriani, I | Download |
| 2019 | Efecto del cobre para la remoción de sulfato en un reactor de lecho fijo | Loreto, C. D., Certucha, M. T., Almendariz, F. J., Ochoa-Herrera, V., and Monge, O | Download |
| 2019 | Validating anthropogenic threat maps as a tool for assessing river ecological integrity in Andean-Amazon basins | Lessmann, J., Troya, M. J., Flecker, A. S., Funk, W. C., Guayasamin, J. M., Ochoa-Herrera, V., Poff, N. L., Suárez, E. and Encalada, A. C. | Download |
| 2019 | Drinking water quality in areas impacted by oil activities in Ecuador: Associated health risks and social perception of human exposure | Maurice, L., López, F., Becerra, S., Jamhoury, H., Le Menach, K., Dévier, M-H., Budzinski, H., Prunier, J., Juteau-Martineau, G., Ochoa-Herrera, V., Quiroga, D. and Schreck, E. | Download |
| 2019 | An integrated approach for evaluating water quality between 2007-2015 in Santa Cruz Island in the Galapagos Archipelago | Mateus, C., Guerrero, C. A., Quezada, G., Lara, D. and Ochoa-Herrera, V | Download |
| 2019 | Wastewater treatment for nutrient removal with Ecuadorian native microalgae | Benitez, M.B., Champagne, P., Ramos, A., Torres, A.F. and Ochoa-Herrera, V. | Download |
| 2019 | Construction and operation of a low-cost anaerobic chamber for culturing of sulfate reducing bacteria | Zambrano-Romero, A., Herrera-Moreno, N., Trueba, G., Sierra-Alvarez, R., León-Reyes, A., Ochoa-Herrera, V. | Download |
| 2019 | Update of the carbón footprint of Universidad San Francisco de Quito – USFQ for the year 2015 | Encalada, A. C., Guayasamín, J. M., Suárez, E., Mena, C. F., Lessmann, J., Sampedro, M. C., Martínez, P., Ochoa-Herrera, V., Swing, K., Celinscak, M., Schreckinger, J., Vieira-Fernandes, J., Tapia, A., Serrano, C. S., Barragán, K. S., Andrade, S., Alexiades, A. V., Troya, M. J. | Download |
| 2019 | Distribution, contents and health risk assessment of metal(loid)s in small-scale farms in the Ecuadorian Amazon: An insight into impacts of oil activities | Barraza, F., Maurice, L., Uzu, G., Becerra, S., Lopez, F., Ochoa-Herrera, V., Ruales, J. and Schreck, E. | Download |
| 2019 | Los ríos de las cuencas Andino-Amazónicas: Herramientas, y guía de invertebrados, para el diseño de programas de monitoreo | 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 | Towards a sustainable energy-efficient future at universities, Universidad San Francisco de Quito Case Study, Phase I | Valencia, M., Villacreses, S., Benitez, D. S, Velasco, A., Ochoa-Herrera, V. | Download |
| 2018 | Estimation of Landfill Methane Generation from Solid Waste Management Options in the Galapagos Islands¨. | Peñafiel R., Pesántez L., Ochoa-Herrera V. | Download |
| Sustainable Energy Mix in Fragile Environments. Social and Ecological Interactions in the Galapagos Islands. | In: Tyler ME. (eds) | ||
| 2018 | Nuestro vivir en la Amazonía ecuatoriana: entre la finca y el petróleo | 4. Aldas-Vargas, A., Alexiades, A., Baby, P., Barraza, F., Becerra, S., Bilhaut, A-G., Borell-Estupina, V., Bosque, S., Boyon, A., Budzinski, H., Cadot, E., Cales, M., Cano, L., Cevallos, G., Cuesta, I., Maurice, L., López, F., Jamourhy, H., Le Menach, K., Devier, M-H., Encalada, A.,Furger, C., Gallai, N., Gardon, J., Gil, E., Green, N., Guayasamin, J.M., Jamourhy, H., Juteau, M. G., Képhaliacos, C. Larrea, C., Lerigoleur, E., Le Ménach, K., Lessmann, J., Leveque, T., López, F., Mestripieri, N., Maurice, L., Mena-Olmedo, J., Moreno-Vallejo, C., Ochoa-Herrera, V., Orozco, L., Prunier, J., Quiroga, D., Racines, D., Requier-Desjardins, D., Rivadeneira, M., Ruales, J., Saqalli, M., Schreck, E., Soler, M., Suárez, E., Uzu, G. | 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 | 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. | 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 |
| 2013 | Effect of the substrate as electron donor during the microbial sulfate reduction and its possible applications in the biological treatment of acid mine drainage | Andrade, V. and 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 | Development of Analytical Methods to Quantify Perfluorooctane Sulfonate and Related Compounds in the Environment | Ochoa-Herrera, V. Field, J.A., y Sierra-Alvarez, R. | 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 and Field, J.A. | Download |
| 2008 | Removal of perfluorooctane sulfonate (PFOS) and related compounds from industrial effluents | Ochoa-Herrera, V. | Download |
