TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Process: In the process of thermal-chemical treatment of organic and/or inorganic sludge and of solid waste containing organic substances, for certain types of waste the process can permit a surplus of energy (or of secondary raw material with calorific value). For other types of waste it permits the re-use of the treated material in the environment rather than its disposal in a dump, with evident environmental and economic advantages. The hopper (13) permits the weighing of the material to be treated and its transfer, by means of a conveyor belt (23), to the dehydration reactor (14). On completion of the reactor loading step, the system is closed and vacuum is applied by means of the high vacuum unit (19), and that the material in the reactor (14) is kept at a controlled temperature by means of a jacket that allows the passage of eutectic salts which are heat-controlled by appropriate probes, in order to permit evaporation of the water and thus carry out the first dehydration step. The material is transferred, in a vacuum, to the second reactor (15) where molecular recombination is carried out, and in that both reactors are equipped with a double-shaft mixing blade system to homogenize the material they contain. In the second reactor too, the temperature is controlled by a probe system that controls the eutectic salt heating system. The substances that move on to the gaseous step are transferred to the stripping column (24) and that the material treated in this way is then discharged into the cooling hopper (16), again in a vacuum to prevent the risk of uncontrolled combustion, and on reaching a safe temperature the material is transferred by screw feeders, conveyor belts, elevators or pneumatic transport systems to the storage section (17). The heat generator (18) heats the molten salts for the two reactors and generates the steam used to transport the volatile elements to the damping system. The heat generator can also be equipped with heat regenerators (25), in which the currents of steam pass through cyclones (26) to the section for the treatment of the condensate (21) where they are divided into two flows: the organic flow or oil destined for re-use or reclaim, and the flow of water which is transferred to the water treatment section (22) which consists of chemical-physical and biological treatment tanks (27) from which water-purified sludge is obtained which is then further compacted by means of a filter-press (28) and returned to the initial treatment cycle. The plant is managed by means of a supervision system installed in the control cabin (29), while the electrical commands are installed in the control compartment (30). EXAMPLE - No suitable example given.