At Pollutec, innovations flourish to protect the environment – La Dépêche de Tahiti

The “drones” Water to test the quality of water, a solar fabric to sanitize the pipes or hearing cane to track drinking water leakages … innovation flourished in the living room of green growth Pollutec , which was held near Lyon for four days.
From Tuesday to Friday, some 2 300 exhibitors will be given an appointment for this great annual mass of green technology, the 26th edition was held in Chassieu (Rhône) in the huge exhibition hall eurexpo. 100 000 m2 where the words “recycling”, “energy recovery”, “sustainability” or “efficiency” were on everyone’s lips.
Among the outstanding innovations of the show, the two “drones” Water and electrical start-up Savoyard CT2MC. “Our machines can be controlled 2km away with a touch pad as they can be autonomous by performing a predefined route before returning to t heir starting point,” he told AFP Jordi Romea, a part of society.
On the stealth and compact appearance, gear “Duck” and “Swan” look like small hovercraft that can be stored easily in the trunk of a car. Their mission is to map ponds, lakes and rivers and carry water samples y (pH, salinity, oxygenation rate, recovery plants …) for environmental analysis. The machines are equipped in the sense of a camera, sensors and an on-shell sterile “to avoid contamination of the environment in which they operate and their samples.” In this way, samples “can be repeated in the same day, on several different sites.”
Established in 2012 and specializes in the engineering of composite materials, CT2MC claims to be a “precursor” on this “emerging market” and hopes to market its machines by the end of the year for a price ranging between 2 500 euros and 12,000 euros depending on the model.

< strong> Golden Ears and photolysis

A few booths away, the Ax’Eau company also surprised with his portable sound system designed to track down leaks drinking water in communities.
“In France, on average, it is around 30% losses in water distribution networks. It’s a lot,” said the CEO of the company, Cyril Muntzer who sells his research service from the beginning of the year. Near him, a presentation model, equipped with headphones on, grabs a stick impresses with its sharp end.
“This tip is actually a very sensitive microphone to be pushed underground and amplifies over 4000 times the vibration of the water. If the sound is high, the leak will be small. If is severe, it will be important, “the entrepreneur. Once identified, the leaks are mapped on a laptop.
But technology is not everything. After this system requires “someone with a genuine sensitivity, such as the famous” noses “in the perfume or ‘golden ears’ of the Na vy (officer listen to the sounds from outside the boat or submarine, ed), “said Mr. Muntzer.
disinfect water with solar energy? This has become possible with the young Lyon company BMES with its smart fabric consisting of a titanium catalyst.
Crossed by polluted water, the apparent light, captures the fabric of all, on its surface, micro-pollutants (drug residues, pesticides …) and micro-organisms (viruses, bacteria, fungi) before destroy or degrade by photolysis, that is to say focusing of ultraviolet sunlight. Lagoons, urban waterways, retention basins or industrial … the scope is wide. BMES hopes to commercialize his invention the coming weeks.
Sales of green growth in France was 69 billion in 2012, according to Pollutec which welcomed for this edition, more than 60,000 visitors.

AFP