This morning, Sébastien Petithuguenin, Chairman of Paprec Energies, Eric Cesari, Chairman of Syctom, and Jean-Jacques Guillet, Chairman of Sigeif, laid the first stone of their bio-anaerobic digestion project, in the presence of Patrice Leclerc, Mayor of Gennevilliers, and Patrick Ollier, Chairman of the Greater Paris metropolitan authority.With a 50,000-ton capacity, something that has never been…