Localisation: Presles (95)
Sector: Fin de vie
Creation date: 2018
Date of analysis: novembre 2020
Project maturity: Under development
Born in 2015 during the Jardin Jardin competition, Cocott’arium is an initiative led by Aurélie Deroo that proposes the implementation of urban henhouses to recover bio-waste. This food waste feeds the hens whose eggs are collected by Cocott’arium users. This virtuous circle of valorization makes it possible to produce food using food waste.
Aurélie is fully committed to its project in January 2017 and inaugurates its first cocott’arium in January 2018.
Translated with www.DeepL.com/Translator (free version)
To listen to Aurélie present the project, you can watch the video at the very bottom of the article!
The Energy Transition Law  of 17/08/2015, one of the 6 objectives of which is to halve the volume of waste produced by 2050, concerns all actors in the territory: citizens, companies, public authorities.
A bio-waste is a food waste (vegetable peelings…) or a biodegradable natural waste that can be recovered in compost.
In this law, the question of the management of bio-waste is raised.
These wastes must be separated from the others since their burial and the absence of oxygen is favorable to the phenomenon of fermentation releasing methane. However, the global warming power of methane is 25 times greater than that of CO2. It therefore plays an active role in global warming.
It is therefore becoming urgent to make the most of our bio-waste.
Bio-waste can be recovered by different processes:
These reactions have the advantage of allowing the material to return to the ground.
Cocott’arium offers all the services resulting from the establishment and maintenance of a participatory chicken coop, for companies and municipalities:
Users reduce their food waste by recycling it into feed for laying hens. They recover the fruit of this valorization: free fresh eggs to be recovered throughout the year.
Sorting bio-waste allows to valorize it as well as possible. Indeed, it is important to separate them from other waste in order to prevent the degradation process occurring during their burial. This reaction leads to the production of methane, a gas that plays a major role in global warming.
Recycling bio-waste thus makes it possible to reduce the production of this greenhouse gas.
According to a recent ADEME study, the average direct cost of raw material losses and wastage is 0.27€/meal. If we add the indirect costs (notably the time and energy consumed to prepare the meals, waste bill), the amount amounts to 0.68€/meal. 
Thus, there is a real economic interest in working to reduce food waste and to recover organic waste.
Cocott’arium offers a maintenance service for hen houses in partnership with the service provider Pro-Insert, which promotes sustainable integration into the job market. 
The presence of a cocott’arium helps to revitalize the host site and to recreate a social link between the inhabitants of the same neighborhood or the employees of a company.
This model of bio-waste recovery can be adapted for private individuals with an outdoor space.
Currently, two services are offered: food waste collection and egg recovery.
Chicken houses generate a significant amount of waste: litter, droppings and food scraps. Cocott’arium wishes to develop a collaborative vegetable garden service to use the compost produced by the henhouse. For the moment only 15m² of vegetable garden have been installed.
This recovery allows the use of a large quantity of biowaste: a hen can consume up to 400g of waste per day.
The efficiency of this waste recovery makes Cocott’arium’s initiative interesting.