Abstract: A process for treating waste waters with TDS?20 g/l, possibly containing organic substances, includes the following steps: a. separating the saline wastewater or waste waters from suspended solids and heavy pollutants by physical separation, forming a saline stream free of suspended solids and heavy pollutants; b. subjecting the saline stream to reverse electro-dialysis, using a reservoir solution to reduce the saline concentration and forming a diluate and a diluted stream (waste water) with TDS not higher than 20 g/l; and c. biologically treating the diluted stream obtained in (b) forming biological sludge, or excess sludge, and clarified water.

Abstract: The present invention relates to a submerged combustion furnace for melting ceramic frits by means of a submerged combustion process, said furnace comprising at least one control loop with feedback of the overall weight regulating at least one process variable of the furnace for producing ceramic frit. The invention also relates to a regulating method for a submerged combustion furnace having these features, whereby obtaining a batch production of a ceramic frit having certain characteristics. The regulating method is implemented in the system by means of regulating process variables relating to the production of molten material during production.

Abstract: The present invention relates to a submerged combustion furnace for melting ceramic frits by means of a submerged combustion process, said furnace comprising at least one control loop with feedback of the overall weight regulating at least one process variable of the furnace for producing ceramic frit. The invention also relates to a regulating method for a submerged combustion furnace having these features, whereby obtaining a batch production of a ceramic frit having certain characteristics. The regulating method is implemented in the system by means of regulating process variables relating to the production of molten material during production.

Abstract: An apparatus is described for measuring the earth surface movement by means of SAR images; the apparatus comprises at least one SAR radar (10) placed on a satellite or on an aeroplane and at least one electromagnetic wave reflector (1) placed on an earth surface portion to be measured. The at least one SAR radar comprises means (11) for transmitting an electro-magnetic signal (60) onto said reflector and means (12) for acquiring the electromagnetic signal (61) reflected from the reflector; said SAR radar is adapted to acquire reflected signals along ascendant (50) and descendant (51) orbits. The reflector comprises, in a single piece, a first trihedron (2) configured for reflecting the signal transmitted by the SAR radar along ascendant orbits (50) and a second trihedron (3) configured for reflecting the signal transmitted by the SAR radar along descendant orbits (51).