The collected oyster shells will be deposited with Captain Marée who works with various local stakeholders to implement recovery solutions.
“The oyster is a medicine cabinet”
After collection, the shells will be sorted and crushed. The Captain Marée company is equipped with a small crusher which produces different aggregates. Indeed, “oyster shells can then be used for soil amendment in mulching agriculture, poultry feed, the manufacture of ceramics or even in the manufacture of cosmetics or food supplements. The oyster is a medicine cabinet,” smiles the oyster farmer. Oyster shells are even used in road paints. The pearly appearance of the oyster allows for a brighter white and its roughness used in the safety strips helps prevent slippage! “We also use it on the roofs of artisanal areas for air conditioning,” specifies the oyster farmer who is starting out by currently producing two tonnes per month, hoping to reach 6-10 tonnes per month.
A circular economy
“We are lucky to have a local player who promotes short supply chains, and a circular economy with a clean exit for the environment,” appreciates Christian Sébille, vice-president for waste at GMVA (Golfe du Morbihan Vannes agglomeration). “To this end, seven collection points are made available to residents of the urban area until January 15 inclusive, 24 hours a day. Oyster shells must be deposited, in bulk, without bags and without other undesirables in the recycling centers of Arradon, Arzon, Locmaria Grand-Champ, Saint-Avé, Sarzeau, Vannes or in the parking lot of the Saint-Vincent cemetery, in Theix-Noyalo. If the experience is positive, we can develop it during Gulf Week,” hopes Stéphanie Creton.
