This paper aims at describing the procedure used to carry out the reconstitution of an artificial wastewater, as well as presenting the results of laboratory and platform tests, as far as the use of this artificially reconstituted wastewater is concerned. Artificial wastewater has to be easily reproducible whatever sites on which it is used; mixtures of raw materials must be limited as much as possible; the composition of the wastewater targeted in this work is relatively typical of domestic wastewater that is SS 350 mg/L; D0B5 400mg02/L; COD 880mg02/L; N-NTK 80mgN/L and P 10 mgP/L; the biodegradability of the reconstituted effluent does not have to be too fast, that is similar to a classic urban wastewater. Globally, this study gave very satisfactory results. We were able to show the reproducibility of the reconstituted effluent, as well as the reliability of the reconstruction since the optimal conditions of implementation are mastered. Besides, results of the tested platform exits remain very close to those obtained with the urban wastewater which fed them during 3 years.