Biology and Chemistry Student, photographer from time to time, sportsman for health, musician if there is time.Tell us what the water concern in your country is!
In Switzerland we can count ourselves lucky, there is hardly any shortage of water and everywhere it is drinkable. The problems lie in global warming, which is causing our precious glaciers to melt.This is what I think is one of the solutions for a sustainable future:
For a sustainable future, we should put aside the profit mentality and try to achieve the 17 UN Sustainable Development Goals.
From Spirulina to Electricity
Our work involves building a system that integrates a RedOx cell and a culture of edible cyanobacteria, so that the dioxygen released by the algae during their growth can be used to produce electricity. The cyanobacteria used is Spirulina sp., characterized by excellent nutritional values. During the photosynthetic process, they take up CO2 from the atmosphere and release dioxygen. We used the produced dioxygen to regenerate the catholyte of a hybrid RedOx flow cell using zinc and methylene blue, materials with low toxicity. With a 2L culture of algae it was possible to produce 160 mL of dioxygen in 24 hours, which was enough to recharge the catholyte to power a LED (320 Ω) during 3 hours and 40 minutes.