The Electrolytic Extraction of Carbon Dioxide from Ocean Water Using Dawsonite

Overview

As humans gain an increasing reliance on environmentally harmful devices such as cars and factories, organisms in the ocean experience life-altering adversity. To decrease the significance of emission-formed ocean alteration, we improved a lesser-known method of carbon sequestration known as electrolysis and created a machine to carry out the procedure. Three variables, time (5-15 min.), distance (1-2 in.), and voltage (1-3 9V batteries), were tested on 100mL of distilled water, 0.2 mol CO2 and 0.05 mol NaCl and ranked based on dawsonite, a fire retardant, production and pH change. Through 54 trials, each combination of variables was tested and the data was collected and analyzed through correlation models, two-tailed t-tests, and prediction models. The study showed that trial 16 (1 in, 1 battery, 10 min) produced a far larger amount of dawsonite than all trials except for trial 18 (1 inch, 3 batteries, 10 minutes) through at value of 0.11. However, a correlation coefficient (0.03) showed that batteries had minimal effect on results, allowing for trial 16 to be deemed most efficient due to minimal energy requirements. To further convey that trial 16 is the most efficient, scalable experiments were performed that showed that when the variables were scaled by 0.5, 2, and 3, the yield increased accordingly. To increase sustainability, different recycled aluminum were tested, with gum wrappers yielding similar dawsonite amounts. The dawsonite diver, a novel oceanic carbon sequestration machine, was built to carry out the procedure tested. If used on the 11 million yearly cargoship trips, enough dawsonite would be produced to extract 200,000 metric tons of CO2 and produce 4 billion dollars in profit.

Competition history

• AJAS 2024 Category not listed

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