Process for the production of ethylene from an ethanol feedstock that comprises at least the following stages: a) A stage for dehydration of a dehydration feedstock comprising said ethanol feedstock in such a way as to produce at least an ethylene effluent and at least a water effluent, b) A stage for partial condensation of said ethylene effluent by heat exchange with at least a cold source at a temperature of between 20 and 50°C, c) A stage for separation of phases of said partially condensed ethylene effluent in such a way as to produce a gas effluent and a liquid effluent, d) A stage for compression of said gas effluent that is obtained from stage b) in such a way as to produce a compressed gas effluent followed by a cooling to a temperature of between 10 and 50°C, e) A stage for washing by bringing said compressed gas effluent into contact with the recycled washing water according to stage h) in a washing column in such a way as to produce a washed gas effluent and a waste water effluent, f) A stage for absorption by bringing said washed gas effluent into contact with at least an absorbent solution in an absorption column, with said absorbent solution comprising at least a solvent that is selected from among the group that consists of the chemical and physical solvents, in such a way as to produce a purified gas effluent and a waste absorbent solution effluent, said chemical solvents being selected from among soda and the amines are selected from among MEA (monoethanolamine), DEA (diethanolamine), MDEA (methyl diethanolamine), DIPA (diisopropylamine), DGA (diglycolamine), diamines, piperazine, and hydroxyethyl piperazine, taken by themselves or in combination, said physical solvents being selected from among N-formyl morpholine, ethers of glycols, sulfolane, and thiodiethanol, g) A stage for distillation of said waste water effluent that is obtained from stage e), and, jointly, said water effluent that is obtained from said dehydration stage in such a way as to produce at least a gas distillate, a liquid distillate, a purified water effluent, and a distillation residue, h) A stage for recycling at least a portion of said purified water effluent that is obtained from stage g) upstream from the washing stage e), with said portion then being referred to as washing water. a) A stage for dehydration of a dehydration feedstock comprising said ethanol feedstock in such a way as to produce at least an ethylene effluent and at least a water effluent, b) A stage for partial condensation of said ethylene effluent by heat exchange with at least a cold source at a temperature of between 20 and 50°C, c) A stage for separation of phases of said partially condensed ethylene effluent in such a way as to produce a gas effluent and a liquid effluent, d) A stage for compression of said gas effluent that is obtained from stage b) in such a way as to produce a compressed gas effluent followed by a cooling to a temperature of between 10 and 50°C, e) A stage for washing by bringing said compressed gas effluent into contact with the recycled washing water according to stage h) in a washing column in such a way as to produce a washed gas effluent and a waste water effluent, f) A stage for absorption by bringing said washed gas effluent into contact with at least an absorbent solution in an absorption column, with said absorbent solution comprising at least a solvent that is selected from among the group that consists of the chemical and physical solvents, in such a way as to produce a purified gas effluent and a waste absorbent solution effluent, said chemical solvents being selected from among soda and the amines are selected from among MEA (monoethanolamine), DEA (diethanolamine), MDEA (methyl diethanolamine), DIPA (diisopropylamine), DGA (diglycolamine), diamines, piperazine, and hydroxyethyl piperazine, taken by themselves or in combination, said physical solvents being selected from among N-formyl morpholine, ethers of glycols, sulfolane, and thiodiethanol, g) A stage for distillation of said waste water effluent that is obtained from stage e), and, jointly, said water effluent that is obtained from said dehydration stage in such a way as to produce at least a gas distillate, a liquid distillate, a purified water effluent, and a distillation residue, h) A stage for recycling at least a portion of said purified water effluent that is obtained from stage g) upstream from the washing stage e), with said portion then being referred to as washing water.