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Water Pollution Science Fair Project

Virus Movement Through Sand and Aquifers

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Virus Movement Through Sand and Aquifers | Science Fair Projects | STEM Projects
How far can a virus travel through underground rock and sand before the ground traps it? Aquifers (layers of rock that hold groundwater) vary in grain size and chemistry. These differences change how fast a virus moves. You create model aquifers by packing quartz sand into columns. Some sand gets coated with iron compounds. Then you push bacteriophage PRD1 (a harmless lab virus) through the columns and measure what comes out. The results feed into a computer model that predicts virus movement in real aquifers. Grain size and iron coatings both change how far the virus travels.

Hypothesis

The hypothesis is that virus transport properties are correlated to the hydraulic conductivity and geochemical heterogeneity of the porous medium.

Method & Materials

You will purchase quartz sand in eight well-sorted size fractions and coat the sand with desired percentages of ferric oxyhydroxides. Then, you will use the synthetic sand and bacteriophage virus PRD1 to conduct a series of column studies to determine local-scale transport parameters.
You will need quartz sand, ferric oxyhydroxides, and bacteriophage virus PRD1.

Results

The results of this experiment will help us understand how physical and geochemical differences in aquifers can affect virus transport. We will be able to use the observational findings to create a stochastic model of virus transport in aquifers.

Why do this project?

This science project is unique because it is testing a hypothesis that has not been tested before. It is also high-risk, as the results of the experiment will be used to create a stochastic model of virus transport in aquifers.

Also Consider

Experiment variations to consider include testing different types of viruses and different types of aquifers.

Full project details

Additional information and source material for this project are available below.
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