Abstract: The invention relates to a waste treatment method in which waste is subjected to a first screening process (4). The fraction of waste passing through the screening is subjected to a pre-fermentation treatment in a rotating tube (1) and the material leaving the pre-fermentation treatment tube is subjected to mixing in a mixing hopper, and, subsequently, to a methanization treatment in a digester (2). The organic materials are separated from the undesirable products in the material leaving the pre-fermentation treatment tube before it enters the digester. The digester (2) is horizontal and mechanically stirred, and a fraction of the digestate leaving the digester is recirculated at least in the mixing hopper, the recirculation rate being sufficiently high to ensure complete mixing.

Abstract: Cogeneration method, according to which a hot source (2) produces steam that is released in at least one turbine (3) having a low-pressure steam outlet (5) linked to a condenser; at least a fraction (Q) of the steam leaving the turbine (3) is directed towards a Venturi thermocompressor (14) into which a fluid having higher pressure and temperature than the outgoing steam is injected, resulting in a fluid having higher pressure and temperature than the outgoing steam, and this mixture is directed towards a second condenser (21) where the heat of the mixture is transferred to an auxiliary fluid of a circuit (23) external to the thermodynamic cycle.

Abstract: The invention relates to a method for remotely reading fluid meters, according to which a meter comprises a module having a metering clock and a wireless transmitter for transmitting a frame of time-stamped remote-reading information to a server which comprises a server clock; after every N frames are transmitted, the meter module enters a receiving mode (Rx) for a period of time (?Rx); upon receiving a frame of time-stamped information, the server determines the difference between the time information contained in the received frame and the time information provided by the server clock; then, if the difference is greater than a predetermined limit (?L), the server sends a reset message to the meter; upon receiving the reset message, the module of the meter updates the meter clock.

Abstract: The invention relates to a power generation module (M1, M2, M3), using solar radiation, which includes a caisson (2) comprising: a first wall (3) exposed to solar radiation, at least partially made up of a photovoltaic panel (4) with the other part made up of at least one transparent plate (5) or separated photovoltaic cells; at least one second dark wall spaced apart from the inner surface of the first wall (3); an intake (9) for fresh or recycled air with a view to circulating air inside the caisson between the walls; and an outlet (13a) for the air that swept through the inside of the caisson and which was heated by the part of the radiation that passed through the first wall including the transparent plate, the power being generated as electricity by the photovoltaic panel and as thermal power using the heated air.

Abstract: The invention relates to a method for processing nitrogen-concentrated effluents by ammonia oxidation into nitrites followed by nitrite denitritation in a gaseous nitrogen in a sequential biological reactor (1) consisting in pouring a processable effluent volume in to the reactor by successive volume fractions, in dividing the entire processing cycle into successive sub cycles, wherein each sub-cycle comprises a feeding phase, an aeration phase for nitrification and an anoxia phase along which a carbon-containing source is introduced into the reactor for converting nitrites into nitrogen.