Abstract: The invention concerns a method for stabilizing and conditioning wastewater sludge. The invention is characterized in that it consists in treating sludge in an acid environment (3.0?pH?5.0), with an inorganic acid and two oxidizing agents, that is a ferric iron salt and hydrogen peroxide. The ferric iron salt is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of Fe per ton of dry sludge; the hydrogen peroxide is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of H2O2 per ton of dry sludge; mixing the treated sludge for a time interval sufficient to stabilize the sludge and improve its dehydrability; then flocculating the stabilized sludge by adding an organic polymer; then dehydrating the flocculated sludge. Said method enables to significantly improve the dehydrability properties of the sludge while increasing the dry solid content during its mechanical dehydration.

Abstract: A method for in-line preparation of liquid for an extracorporeal blood treatment apparatus that makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filter, which operates in correspondence with a first filtration station, for placing in correspondence with the first filtration station the filter that operated in correspondence with the second filtration station, for placing a new filter in correspondence with a second filtration station and for launching a new sterile liquid preparation cycle. The invention also provides a device for implementing the described method and an apparatus for extracorporeal blood treatment, which incorporates this device.

Abstract: A device and method for an extracorporeal blood treatment is described. The device comprising at least one exchanger equipped with at least one first inlet for the blood to be treated, a first fluid outlet and a second fluid outlet, an input line for blood to be treated connected to the first inlet of the exchanger, a blood output line (or venous line) connected to the first outlet of the exchanger, at least one treatment unit comprising at least one first fluid inlet and at least one first fluid outlet, the second outlet of the exchanger being in fluid communication with the first inlet of the treatment unit, where the first outlet from the treatment unit is in fluid communication with the input line and the second outlet of the treatment unit is in fluid communication with a first waste liquid discharge line.

Abstract: A method of treating animal manure yielding a final liquid fraction and solid fractions whereby the final liquid fraction has a suspended solids (SS) content of about 3g/L or lower comprising subjecting at least a part of said manure to a first biological passive flotation step in a flotation unit having a hydraulic residency time (HRT) of about 4 to about 24 hours with a polymer to yield a first flotation solid fraction and a first flotation liquid fraction, said method comprising a further treatment.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats (1) which can be converted into beds and disposed in rows (2), comprising two lateral groups (3a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and two central groups (3b) each comprising two continuous rows. The central groups being up against one another laterally, and the central groups being separated from each of the lateral groups by a gangway. Each of the lateral and central groups comprising, between two consecutive groups in a first row, and a gap able to allow transverse passage (6) to a gangway (7) for the passengers in the second row when the corresponding seat in the first row is in the bed position.

Abstract: A method of treating animal manure yielding a final liquid fraction and solid fractions whereby the final liquid fraction has a suspended solids (SS) content of about 3 g/L or lower comprising subjecting at least a part of said manure to a first biological passive flotation step in a flotation unit having a hydraulic residency time (HRT) of about 4 to about 24 hours with a polymer to yield a first flotation solid fraction and a first flotation liquid fraction, said method comprising a further treatment.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats which can be converted into beds and disposed in rows, and comprising two lateral groups (3a; 13a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and at least one central group (3b; 13b) of two contiguous rows, the said central group being separated from each of the lateral groups by a gangway. Each lateral group comprising, between two consecutive groups in a first row, and a pitch (P1) able to allow transverse passage for the passengers in the other row. The at least one central group comprising, between two adjacent seats in the same row, and a pitch (P2) less than the pitch provided in the lateral groups.

Abstract: A method for in-line preparation of liquid for an extracorporeal blood treatment apparatus that makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filter, which operates in correspondence with a first filtration station, for placing in correspondence with the first filtration station the filter that operated in correspondence with the second filtration station, for placing a new filter in correspondence with a second filtration station and for launching a new sterile liquid preparation cycle. The invention also provides a device for implementing the described method and an apparatus for extracorporeal blood treatment, which incorporates this device.

Abstract: A method for in-line preparation of liquid for an extracorporeal blood treatment apparatus that makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filter, which operates in correspondence with a first filtration station, for placing in correspondence with the first filtration station the filter that operated in correspondence with the second filtration station, for placing a new filter in correspondence with a second filtration station and for launching a new sterile liquid preparation cycle. The invention also provides a device for implementing the described method and an apparatus for extracorporeal blood treatment, which incorporates this device.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats which can be converted into beds and disposed in rows, and comprising two lateral groups (3a; 13a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and at least one central group (3b; 13b) of two contiguous rows, the said central group being separated from each of the lateral groups by a gangway. Each lateral group comprising, between two consecutive groups in a first row, and a pitch (P1) able to allow transverse passage for the passengers in the other row. The at least one central group comprising, between two adjacent seats in the same row, and a pitch (P2) less than the pitch provided in the lateral groups.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats (1) which can be converted into beds and disposed in rows (2), comprising two lateral groups (3a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and two central groups (3b) each comprising two continuous rows. The central groups being up against one another laterally, and the central groups being separated from each of the lateral groups by a gangway. Each of the lateral and central groups comprising, between two consecutive groups in a first row, and a gap able to allow transverse passage (6) to a gangway (7) for the passengers in the second row when the corresponding seat in the first row is in the bed position.

Abstract: The invention concerns a method for stabilizing and conditioning wastewater sludge. The invention is characterized in that it consists in treating sludge in an acid environment (3.0?pH?5.0), with an inorganic acid and two oxidizing agents, that is a ferric iron salt and hydrogen peroxide. The ferric iron salt is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of Fe per iron of dry sludge; the hydrogen peroxide is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of H2O2 per ton of dry sludge; mixing the treated sludge for a time interval sufficient to stabilize the sludge and improve its dehydrability; then flocculating the stabilized sludge by adding an organic polymer; then dehydrating the flocculated sludge. Said method enables to significantly improve the dehydrability properties of the sludge while increasing the dry solid content during its mechanical dehydration.

Abstract: The invention relates to a hybrid biological and chemical method for decontaminating sludge containing heavy metals and pathogenic microorganisms, consisting of the following steps: the sludge is mixed with an acidic leaching solution in order to acidify the sludge with a pH which is low enough to solubilize the majority of the heavy metals and to destroy most of the pathogenic microorganisms but which is also high enough to minimize the solubilization of fertilizing elements; oxidation-reduction of more than +400 mv is maintained, liquid-solid separation occurs in order to obtain a solid fraction comprising decontaminated acidic sludge and a liquid fraction comprising heavy metals which are dissolved in a leaching solution; the sludge is neutralized: and neturalized decontaminated sludge is recovered, whereby the fertilizing elements contained therein, i.e. carbon, nitrogen and phosphorus, remain substantially unchanged in relation to the initially contaminated sludge.

Abstract: A method of treating animal manure yielding a final liquid fraction and solid fractions whereby the final liquid fraction has a suspended solids (SS) content of about 3 g/L or lower comprising subjecting at least a part of said manure to a first biological passive flotation step in a flotation unit having a hydraulic residency time (HRT) of about 4 to about 24 hours with a polymer to yield a first flotation solid fraction and a first flotation liquid fraction, said method comprising a further treatment.

Abstract: A device for the extracorporeal treatment of blood comprising at least one exchanger (1) comprising a semi-permeable membrane (6) dividing said exchanger into a first chamber (7) and a second chamber (8), at least one first inlet (2) for blood to be treated being in fluid communication with the first chamber (7) of the exchanger, a first fluid outlet (4) being in fluid communication with the first chamber (7) of the exchanger and a second fluid outlet (5) being in fluid communication with the second chamber (8) of the exchanger, an input line (10) for blood to be treated connected to the first inlet (2) of the exchanger (1), a blood output line (11) connected to the first outlet (4) of the exchanger (1), at least one treatment unit (21) comprising a semi-permeable membrane (26) dividing the treatment unit (21) into a first chamber (27) and a second chamber (28), at least one first fluid inlet (22) being in fluid communication with the second chamber (28) of the treatment unit (21) and at least one first fluid

Abstract: Method for in-line preparation of liquid for an extracorporeal blood treatment apparatus, which makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filter which operates in correspondence with said first filtration station, for placing in correspondence with said first station the filter which operated in correspondence with the second filtration station, for placing a new filter in correspondence with the second post and for launching a new sterile liquid preparation cycle. The invention also provides a device for implementing the described method and an apparatus for extracorporeal blood treatment, which incorporates this device.

Abstract: The invention relates to a seat (1) for an aircraft comprising a squab (2), a backrest (3), a leg rest (4), a support structure (5) for the squab (2) and the backrest (3), and a fixed rear separation shell (13). The support structure (5) or the squab (2) moveable in translation in a direction substantially perpendicular to the backrest (3) in the vertical position. The seat (1) is situated in a space lying between a fixed front separation shell (12) and a fixed rear separation shell (13). The movements of each of the components (2, 3, 4) of the seat are independent of each other and the fixed separation shells (12, 13).

Abstract: The invention proposes a device for measuring the pressure of blood in a pipe (44) of an extracorporeal blood circuit (42) includes a pressure measurement section (46) having a substantially rigid wall (64) including a hole (66) which is sealed by a closure element (68), the internal face (70) of which is in contact with the blood and the external face (72) of which is in contact with the ambient air, it being possible for the closure element (68) to be elastically deformed overall along a deformation axis (A—A) under the effect of the blood pressure. The closure element (68) is made in a single piece with the associated rigid wall (64) of the pressure measurement section (46).

Abstract: A method for the treatment of air pollution control (APC) residues comprising the steps of washing the residues at least one time in an alkaline solution maintained at a pH not lower than about 11.5, separating the alkaline washed residues from the alkaline solution. The present method further comprises an optional step of verifying whether the alkaline washed residues are substantially devoid of metal components. When the alkaline washed residues are not substantially devoid of metal components, the alkaline washed residues are washed at least one time in an acid solution maintained at a pH between about 2 and about 4.5 and the acid washed residues are separated from the acid solution so as to produce residues substantially devoid of metal components. The APC residues obtained in application of the methods according to the present invention constitute non-hazardous material/waste.

Abstract: The invention relates to a hybrid biological and chemical method for decontaminating sludge containing heavy metals and pathogenic microorganisms, consisting of the following steps: the sludge is mixed with an acidic leaching solution in order to acidify the sludge with a pH which is low enough to solubilize the majority of the heavy metals and to destroy most of the pathogenic microorganisms but which is also high enough to minimize the solubilization of fertilizing elements; oxidation-reduction of more than +400 mv is maintained, liquid-solid separation occurs in order to obtain a solid fraction comprising decontaminated acidic sludge and a liquid fraction comprising heavy metals which are dissolved in a leaching solution; the sludge is neutralized: and neturalized decontaminated sludge is recovered, whereby the fertilizing elements contained therein, i.e. carbon, nitrogen and phosphorus, remain substantially unchanged in relation to the initially contaminated sludge.