Aislinn Rose Varela

Chemical engineering

Hometown: Phoenix, Arizona, United States

Graduation date: Spring 2025

Additional details: Honors student

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FURI | Fall 2024

Electrochemical Reduction of Nitrates for Algal Growth

Nitrate contamination from anthropogenic development poses a threat to both human health and the environment. This study investigates the electrochemical reduction of nitrates in complex water matrices resembling urban greywater, converting them into higher value-added nitrogen species such as ammonia. The ammonia-rich byproduct was then repurposed to grow Chlorella vulgaris, a model green alga known to enhance crop yield when used synergistically with plants in soil. Results indicated that C. vulgaris grown with 75% and 100% nitrogen as ammonia experienced ammonia toxicity, necessitating further studies to optimize conditions for algal growth in the presence of high ammonia concentrations.

Mentor:

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Additional projects from this student

Nitrates in urban wastewater may be converted to ammonium through electrochemical reduction to grow microalgae to use as a bio-fertilizer.

Mentor:

  • FURI
  • Summer 2024