Objectif A scheme has been proposed for treatment of municipal solid waste (MSW) using an press for phase separation (separation of the easily biodegradable fraction from the other constituents) with wet air oxidation. A prototype press was built. One tonne of waste was manually sorted and 6 identical subsamples reconstituted which were used to study the influence of the pressure on the performance of the press and on the quality of byproducts. The first results show that the extraction of the pulp is not complete with a working pressure of 800 bar although the volume reduction of the waste is almost the same as with the other experimented pressures. The glass content of the pulp is about 1%. The proportion of plastics increases when the pressure rises above 800 bar but their granulometry is mostly greater than 4.76 cm. As they are embedded in organic matter they cannot be eliminated at this stage of the process, this would be easier after biological treatment. Concentrations of trace metals are clearly lower than those obtained by traditional mechanical sorting of organic matter. The pulp seems to be well adapted to anaerobic digestion and composting. Analyses of the composition of fines in the pancake and of the concentrations of trace metals, plastics and glass in the pulp do not provide sufficient elements to choose between 1080 and 1300 bar. However, the concentration of products which are not easily biodegradable increases when the pressure is increased from 1080 to 1300 bar. A working pressure of 1080 bar proved to be the optimum: a good rate of organic matter extraction and production of a stable dry matter with a high density. Experiments on individual components of waste (cellulose, plastics, textiles, rubber etc), show that wet air oxidation can be adapted to this kind of solid waste. The results show that the proposed scheme for municipal solid waste treatment is realistic. Champ scientifique engineering and technologyenvironmental biotechnologybioremediationbioreactorsnatural scienceschemical scienceselectrochemistryelectrolysisengineering and technologymaterials engineeringtextilesengineering and technologyenvironmental engineeringwaste managementwaste treatment processes Programme(s) FP2-REWARD - Specific research and technological development programme (EEC) in the fields of raw materials and recycling - Recycling of waste -, 1990-1992 Thème(s) Data not available Appel à propositions Data not available Régime de financement CSC - Cost-sharing contracts Coordinateur UNIVERSITÉ DE PROVENCE, AIX-MARSEILLE Contribution de l’UE Aucune donnée Adresse Place Victor Hugo 3 13331 Marseille France Voir sur la carte Coût total Aucune donnée Participants (4) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire Commissariat à l'Energie Atomique France Contribution de l’UE Aucune donnée Adresse Ctr Etudes de Cadarache - CE-CA 13108 Saint-Paul-lez-Durance Voir sur la carte Coût total Aucune donnée Institut National Polytechnique de Lorraine France Contribution de l’UE Aucune donnée Adresse Rue du Doyen Marcel Roubault 54501 Vandoeuvre-les-Nancy Voir sur la carte Coût total Aucune donnée Tecnometis SA France Contribution de l’UE Aucune donnée Adresse 11 Quai de la Moselle 54230 Neuves-Maisons Voir sur la carte Coût total Aucune donnée Università degli Studi di Genova Italie Contribution de l’UE Aucune donnée Adresse Corso Europa 30 16132 Genova Voir sur la carte Coût total Aucune donnée