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Valeria Ochoa‐Herrera

Biographic Data

ID7859161
NAMEValeria Ochoa‐Herrera
GIVEN NAMESValeria
FAMILY NAMEOchoa‐Herrera
SIGNATUREHERRERA V O
AFFILIATIONSUniversity of North Carolina at Chapel Hill
ORCID0000-0002-3826-2079
VERIFIEDYes
TOTAL WORKS3
TOTAL CITATIONS0
WORKS AS AUTHOR3
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2020
LATEST PUBLICATION YEAR2025
H-INDEX0
  • Would tourists donate to improve local wastewater management? A contingent valuation study of giving preferences

    Open Access•William F Vásquez, Helen E Vasquez Ramos et al.•ARTICLE•Environment and Development…•2025

    In many tourism-dependent islands, an acute imbalance between increasing demand for wastewater management and the capacity of existing sewage infrastructure represents an increased risk for ecosystems and population health. Given that locals may be opposed to increasing tourism taxes to fund investments in sewerage, promoting charitable giving among tourists may be an alternative to improve wastewater management in tourist destinations. Using a c…

  • Dynamics of Microbial Communities during the Removal of Copper and Zinc in a Sulfate-Reducing Bioreactor with a Limestone Pre-Column System

    Open Access•Aracely Zambrano-Romero, Darío X Ramírez-Villacis et al.•ARTICLE•International Journal of…•2022

    Biological treatment using sulfate-reducing bacteria (SRB) is a promising approach to remediate acid rock drainage (ARD). Our purpose was to assess the performance of a sequential system consisting of a limestone bed filter followed by a sulfate-reducing bioreactor treating synthetic ARD for 375 days and to evaluate changes in microbial composition. The treatment system was effective in increasing the pH of the ARD from 2.7 to 7.5 and removed tot…

  • 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

    Open Access•Pamela Borja-Serrano, Valeria Ochoa‐Herrera et al.•ARTICLE•International Journal of…•2020

    Contamination of natural water sources is one of the main health problems worldwide, which could be caused by chemicals, metals, or microbial agents. This study aimed to analyze the quality of 18 rivers located in Quito, the capital province of Pichincha, Ecuador, through physico-chemical and microbial parameters. The E. coli and total coliforms assessments were performed by a counting procedure in growth media. Polymerase chain reaction (PCR) wa…

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  • 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

    Open Access•Pamela Borja-Serrano, Valeria Ochoa‐Herrera et al.•ARTICLE•International Journal of…•2020

    Contamination of natural water sources is one of the main health problems worldwide, which could be caused by chemicals, metals, or microbial agents. This study aimed to analyze the quality of 18 rivers located in Quito, the capital province of Pichincha, Ecuador, through physico-chemical and microbial parameters. The E. coli and total coliforms assessments were performed by a counting procedure in growth media. Polymerase chain reaction (PCR) wa…

  • Dynamics of Microbial Communities during the Removal of Copper and Zinc in a Sulfate-Reducing Bioreactor with a Limestone Pre-Column System

    Open Access•Aracely Zambrano-Romero, Darío X Ramírez-Villacis et al.•ARTICLE•International Journal of…•2022

    Biological treatment using sulfate-reducing bacteria (SRB) is a promising approach to remediate acid rock drainage (ARD). Our purpose was to assess the performance of a sequential system consisting of a limestone bed filter followed by a sulfate-reducing bioreactor treating synthetic ARD for 375 days and to evaluate changes in microbial composition. The treatment system was effective in increasing the pH of the ARD from 2.7 to 7.5 and removed tot…

  • Would tourists donate to improve local wastewater management? A contingent valuation study of giving preferences

    Open Access•William F Vásquez, Helen E Vasquez Ramos et al.•ARTICLE•Environment and Development…•2025

    In many tourism-dependent islands, an acute imbalance between increasing demand for wastewater management and the capacity of existing sewage infrastructure represents an increased risk for ecosystems and population health. Given that locals may be opposed to increasing tourism taxes to fund investments in sewerage, promoting charitable giving among tourists may be an alternative to improve wastewater management in tourist destinations. Using a c…

Biology (2 works) · Chemistry (2 works) · Environmental Chemistry (2 works) · Environmental Science (2 works) · Microbiology (2 works) · Acid mine drainage (1 work) · Bacteria (1 work) · Bioreactor (1 work) · Botany (1 work) · Child Nutrition and Water Access (1 work)

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