Abstract: The invention relates to an aeration system for seawater oxidation in flue gas purification devices, with at least one tubular diffuser (TD), covered by at least two perforated membranes (20), which are positioned one after the other and at a distance to each other in a direction of the central longitudinal axis (A) of the diffuser (TD) as well as at least one support member (SP), which encircles a membrane-free section (FS) of the tubular diffuser at least partially, and at least one sliding means (40), arranged between the support member (SP) and the membrane-free section (FS) of the tubular diffuser (TD).

Abstract: The invention relates to an aeration system for seawater oxidation in flue gas purification devices, with at least one tubular diffuser (TD), covered by at least two perforated membranes (20), which are positioned one after the other and at a distance to each other in a direction of the central longitudinal axis (A) of the diffuser (TD) as well as at least one support member (SP), which encircles a membrane-free section (FS) of the tubular diffuser at least partially, and at least one sliding means (40), arranged between the support member (SP) and the membrane-free section (FS) of the tubular diffuser (TD).

Abstract: A supporting profile and connecting profile made of light metal for a self-supporting scaffold is disclosed. The profile is particularly for light construction halls and large tent structures, with at least one reinforcing insert extending in the longitudinal direction of the profile body made of a fiber composite material where in a cross section of the profile body that is perpendicular to the longitudinal direction of the profile body at least one closed chamber is formed, in which the at least one reinforcing insert is fixated by material connection, form-fit and/or force-fit.

Abstract: The invention relates to a support and a connecting profile made of plastic, synthetic resin, phenol and/or light metal for a self-regulating skeleton, in particular for halls constructed from light materials and large tent constructions, characterized in that the profile body (5) is provided with reinforcements (4,8) on or introduced in certain areas and which are made of fiber composite materials, e.g. glass, carbon or aramide fibers.