A method for manufacturing ceramic elements, including the following steps: a) providing a mixture to be dried; a') pelletizing in an extruder said mixture to be dried; b) drying said pelletized mixture; c) firing said pelletized dried mixture; d) manufacturing a ceramic object from said fired pelletized mixture; characterized in that: - the mixture to be dried consists essentially of from 50% to 80% by weight of dry clay and from 20% to 50% by weight of at least one binder, the latter including 50% to 80% by weight of dry organic matter; - said binder is at least one civil and/or industrial waste material; - the firing step c) includes a step c') of generating electricity, in such a manner to recover energy from the combustion of the organic matter of said mixture to be dried; - said at least one binder includes a liquid phase and a solid phase; and further characterized in that said binder consists of both civil or industrial sludge and used oil, said civil or industrial sludge being chosen among the group consisting of: sludge of the leather industry, paper industry sludge, wood processing industry sludge, waste water treatment sludge, dredging sludge, wetlands sludge or a mixture of two or more thereof, said step a) of providing said mixture to be dried including a first step a') of providing a first mixture comprising said clay and civil and/or industrial sludge and a second step a") of adding to said first mixture said used oils to provide said mixture to be dried, said first mixture having a humidity lower than 20%, said mixture to be dried having a humidity of 10% to 25% with respect to the total weight of the mixture. a) providing a mixture to be dried; a') pelletizing in an extruder said mixture to be dried; b) drying said pelletized mixture; c) firing said pelletized dried mixture; d) manufacturing a ceramic object from said fired pelletized mixture; characterized in that: - the mixture to be dried consists essentially of from 50% to 80% by weight of dry clay and from 20% to 50% by weight of at least one binder, the latter including 50% to 80% by weight of dry organic matter; - said binder is at least one civil and/or industrial waste material; - the firing step c) includes a step c') of generating electricity, in such a manner to recover energy from the combustion of the organic matter of said mixture to be dried; - said at least one binder includes a liquid phase and a solid phase; and further characterized in that said binder consists of both civil or industrial sludge and used oil, said civil or industrial sludge being chosen among the group consisting of: sludge of the leather industry, paper industry sludge, wood processing industry sludge, waste water treatment sludge, dredging sludge, wetlands sludge or a mixture of two or more thereof, said step a) of providing said mixture to be dried including a first step a') of providing a first mixture comprising said clay and civil and/or industrial sludge and a second step a") of adding to said first mixture said used oils to provide said mixture to be dried, said first mixture having a humidity lower than 20%, said mixture to be dried having a humidity of 10% to 25% with respect to the total weight of the mixture. - the mixture to be dried consists essentially of from 50% to 80% by weight of dry clay and from 20% to 50% by weight of at least one binder, the latter including 50% to 80% by weight of dry organic matter; - said binder is at least one civil and/or industrial waste material; - the firing step c) includes a step c') of generating electricity, in such a manner to recover energy from the combustion of the organic matter of said mixture to be dried; - said at least one binder includes a liquid phase and a solid phase;