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"Liquid 3" in Belgrade, a solution to combat CO2 emissions.


© Marie Fontaine - www.greenisyou.com

CO2 emissions contribute to global warming and environmental degradation.

In response to this challenge, governments, companies and researchers around the world are working on solutions to reduce our carbon footprint.

The "Liquid 3" installation is an innovative structure designed by a group of Serbian researchers and engineers.


It is the first urban photo-bioreactor that uses microalgae to capture carbon dioxide (CO2) and produce pure oxygen through photosynthesis and biomass.

The facility is located in downtown Belgrade and was designed to blend seamlessly into the urban landscape.


Inside the tank, microalgae are grown in 600 liters of water.



The devices are powered by solar energy, with panels on top to capture light and turn it into electricity.


The built-in lighting allows the microalgae to photosynthesize year-round.


They are also built to serve as city benches, while providing a power outlet for charging cell phones.



The "Liquid 3" works through a process called carbon capture and storage (CCS). CO2 is recovered through a network of sensors and filters located within the tree structure.



Once the CO2 is captured, it is sent to a conversion unit located at the base of the tree. This unit uses an innovative chemical process to transform the CO2 into a harmless liquid that is easier to handle. The process typically involves the use of catalysts to speed up the chemical reaction and reduce the amount of energy needed to convert the CO2.


This liquid is then stored in underground tanks where it can be reused for a variety of applications, such as power generation or the manufacture of building materials.


The "Liquid 3" installation has had a significant impact on air quality in Belgrade. Since its installation, CO2 levels in the atmosphere have decreased significantly, contributing to improved air quality for the city's residents.


Following the success of the "Liquid 3" installation in Belgrade, the tree's designers are now considering deploying the technology in other cities around the world. Discussions are underway to install them in several major cities, including Paris, London and New York. The goal is to create a series of installations that will contribute to the reduction of CO2 emissions on a global scale.




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