Treatment of gases, liquid effluents, solid waste (transformation); sorting of waste and recyclable raw material (transformation); treatment, recycling and material and energy reclamation of waste, biogas and biomethane; transforming of waste and fuels for the production of energy; treatment of waste by methanization; purification and injection of bio methane in the gas network; rental of equipment, apparatus and installations for the production, recovery, separation, filtration, purification...