fairfolio
Saved Projects

A Novel Approach to Minimize Road Salt Contamination in Both Terrestrial and Aquatic Ecosystems

ISEF · 2017 Chemistry

Compton, Alyssa

Overview

The initial investigation of this project was to see if the salinity levels of water runoff would decrease after the application of a salt-tolerant grass buffer zone, activated carbon, or calcium sulfate to roadside shoulders after the winter months. For this study, a controlled solution of 23% sodium chloride to water was used. The first phase of this project involved planting 24 plots of a salt-tolerant grass. Next, 24 containers were filled with crushed gravel; 8 with crushed gravel and 4g activated carbon, and 8 with crushed gravel and 4g calcium sulfate. Each container was placed in a collecting basin, and 100 mL of the controlled solution was poured over each container. Salinity levels of the collected runoff samples were then recorded. For the final phases of this experiment, the same procedure was replicated using potting soil, and the previously grown salt-tolerant grass buffer zone. After recording salinity levels, it was found that after the application of a buffer zone, activated carbon, and calcium sulfate, salinity levels in the runoff did decrease from the controlled solution. It was noted that the samples with a grass buffer zone and 4g of activated carbon had shown the largest average decrease in sodium chloride levels from the original solution. The results of this small-scale experiment signify that the application of a buffer zone, activated carbon, or calcium sulfate has the ability to significantly decrease salinity levels in groundwater runoff, and improve the terrestrial and aquatic environments.

Awards (1)

  • Patent and Trademark Office Society: Second Award of $500 $500

Competition history

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: Regeneron International Science and Engineering Fair

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google