Abstract:
Currently, the world emits more than 50 billion tons of greenhouse gases annually. Carbon dioxide ( CO2) is the most voluminous greenhouse gas released into the earth's atmosphere, affecting the problem of global warming significantly. But carbon dioxide also plays an important role in the survival of living things because it is a precursor that plants use to produce food through the process of photosynthesis. Therefore, this research aimed to investigate the use of a carbon dioxide capture system for plant cultivation in modern greenhouses with the goal of reduce the amount of carbon dioxide in the air so that it can be used to increase agricultural productivity.
Anairborne carbon dioxide capture system was designed to trap carbon dioxide floating in the air through a filter. 3 types of chemicals were used and the capture efficiency of carbon dioxide including solution of triethanolamine, monoethanolamine , and calcium carbonate was compared between them. The gas was then extracted from the air by heating it to a temperature of 80 ° C. This process turned carbon dioxide into pure carbon dioxide.
From testing after prototype creation, test results were that the airborne capture system was able to actually trap CO2 with a flow rate of 7 liters per hour and could capture an average of approximately 1500 ppm per liter, equivalent to a working capacity of 66.45 ppm/minute, with triethanolamine solution having the highest desorption rate.