Title:

From Bloom to Doom: A Study of Algal Absorption and Cultivation​

In order to study the absorption of nutrients in algae, we cultivated and tested spirulina which was chosen for its accessibility and size. In order to measure the nutrients, a nitrate and phosphorus rich stock solution was made. Using small 100mL samples of algae, one 50/50 solution (half deionized water and half stock solution) was tested, and one stock solution was tested over the course of 5 days. With this, it was found that nitrate and dissolved oxygen increased for both samples, while nitrite only increased for the 50/50 sample. Since the algae was nearing the end of its life cycle, we gathered important information on the releasing of nutrients due to algae. Not only is this applicable in ecosystems, but also on a smaller scale like water treatment or residential water systems.

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