Of the vacuum cleaners XXL. It is the technology created by several Japanese teams, those of the Rite, the Institute for the Research of Innovative Technologies for the Earth. The objective of these machines is to reduce the CO2 density in the air, (primarily in urban areas) by sucking, filtering it and storing it, thus making it possible to reject a air pur. Engineers are currently presenting their new gadget at theUniversal exhibitionwhich stands in Osaka. You will have no difficulty finding them, if you are passing through. They are located near the pavilions, in what is akin to a factory with several machines, on which stand three huge white cylinders.
Giant tubes acting as XXL vacuums to purify the air of polluted cities
These are these cylinders which constitute the pride of researchers. Throughout the day, these 7 meters long tubes 1.2 meters wide, literally sucks thecity airfilter and store the carbon dioxide. In other words, this is the very idea of the vacuum cleaner. The air suckled by the cylinder crosses a filtered Absorbent made up of amines, a derivative of ammonia, deposited inside, which looks like a bee swarm.
The city of Osaka is in the open -air laboratory for the valuation of CO2
The CO2 then fixes itself to this filter, so that the air suckled can be purified. A pump system makes it possible to store the gas in a reservoir. The tube sets out on the break as soon as he is saturated with CO2. It is only after the tube rejects a clean air. And so on … the operation is repeated. For the moment, only the surroundings of pavilions take advantage of this technology, especially to make methane gaswhich is used for the kitchens of the site.
But is it enough? Can we consider the use of this system on a larger territory? At present, these pollution vacuum cleaners may remember about 300 kilos of CO2 per day. In short, this is the equivalent of what about forty family rejects on a daily basis. A good start, of course, but far from being sufficient for theenvironmental impact be significant.
These giant tubes should be installed both in cities and in the countryside, so that we can feel a real difference and considerably improve the air qualityin the long term. Obviously, a project of such a scale draws up another brake: the monetary question.
It would be essential that this technology May be financially supported. This is why its installation at theOsaka Universal Exhibition is an opportunity for researchers to prove the skills of their new tool and to see it develop on a large scale, in the long term.
References of the article:
Giant vacuum cleaners: the anti-pollution solution in Japan
In Japan, giant co2 vacuum cleaners tested to purify urban air
