Outline
The present invention relates to a gas-separating membrane module comprising heat conductive panels, which allows direct temperature control of the membrane surface, even in multiple zones. A capillary tube or spiral coil module of this design has variable permeability and selectivity along the longitudinal axis and allows up to 50% better separation, increasing both regulatory and separation efficiencies.

Outline
The invention relates to a polymeric indicator fixed in a polymeric gel carrier, wherein the polymeric gel carrier comprises a hydrophilic polymer, wherein the polymeric indicator and the hydrophilic polymer are present together in the form of a combined cross-linked hydrogel network fixed by chemical bonds. The invention further relates to a method for preparing a polymeric indicator fixed in a polymeric gel carrier and to a sensor for measuring pH, which comprises the polymeric indicator fixed in a polymeric gel carrier.

Outline
This invention relates to a biofilm carrier made of structured yarns (1) comprising filaments (2), where each individual filament (2) constituting the central yarn (1) forms a continuous fibre running over the entire length of the yarn (1) and filaments (2) are fixed to each other by anchor points (3) along the length of the yarn (1), and structured yarns (1) are fixed at fixing points (5) of a mesh structure (6), and each structured yarn (1) forms a loop (4) between two adjacent fixing points (5), the arc length (T) of which is greater than the distance (t) of the two fixing points (5).

Outline
The elemental iron nanoparticles (nZVI) efficiently decontaminate the different chlorinated organic compounds, absorb the heavy metals found in the underground water. A practical problem in connection with the nanoparticles is their tendency to aggregate, and -accordingly – difficulties in achieving their stability. An object of the invention is the production of a device for the preparation of nano iron, which is optionally mobile and which can produce the material desired for the environmental decontamination at the location of the contamination. As the nanoparticles easily react with the surrounding materials that tend to be reduced, if prolonged period of time has passed between the preparation and usage, the activity of the suspension continuously decreases. The invention relates to an iron suspension comprising solid iron particles in the nanometer size range that is prepared from ferrous-sulphate (FeSO4); copper-sulphate (CuSO4), a reducing agent, preferably sodium-ditionite (Na2S2O4), and/or sodium-borohydride (NaBH4); sodium-hydroxide (NaOH); and optionally one or more additive(s) selected from the group consisting of polyvnyl-pirrolidone, preferably PVP-K30 or PVP-K90, and as co-metal PdCl2×2H2O.

Outline
The elemental iron nanoparticles (nZVI) efficiently decontaminate the different chlorinated organic compounds, absorb the heavy metals found in the underground water. The technical problem to be solved by the invention is the implementation of a device which ensures the production of a stable, aggregation-free and oxide-free nano-iron, even for the remediation of industrial-scale contamination, and for reducing the storage and transport time of said nano-iron.

Outline
The primary subject of the invention is a separator for separating the anode and cathode compartments in electrochemical cells, comprising

(a) a support made of polyethylene and/or polypropylene fibres, and
(b) a Fe(III)-containing precipitate deposited on the support according to point a).

In the separator, the support may be a woven or non-woven support, preferably a non- woven textile having a surface density of approx. 5-100 g/m², preferably approx. 15-70 g/m2, more preferably approx. 25-40 g/m².

Outline
The present invention relates to cocogem surfactants for an enhanced oil recovery process, said surfactants exhibit reduced critical concentration for micelle formation and thermal stability under conditions typical of deeper oil storage layers (e.g. higher temperature, pressure and/or salinity) as compared to the prior art. Furthermore, said cocogem surfactants provide reduced water-to-oil interfacial tension as compared to the prior art. The invention also relates to a process for producing said cocogem surfactants.

Outline
Probe arrangement for detecting a corrosion effect in a laboratory-scale tubular reactor comprising an orientation element fixedly arranged in the tubular reactor and at least one support element connecting the orientation element, arranged in the tubular reactor so, that at least one supporting element is attached in a releasable contact with at least one plate, characterized in that the orientation element (2) is arranged in the longitudinal axis of the tubular reactor (1), the support element (3) is formed as a cylindrical or prismatic ring surrounding the orienting element (2), and at least one plate (4) is mounted on the support element (3) in a way that it is distanced from the wall of the tubular reactor (1).

Outline
The present invention relates to a composition for an enhanced oil recovery process, said composition comprising (a) one or more anionic cocogem surfactants; b) one or more surfactants based on nonionic vegetable fatty acids (or their synthetic analogues); c) optionally one or more, preferably commercially available, co-surfactants; d) optionally one or more agents with phase transfer property, preferably an alcohol; and e) polyacrylamide as a flow modifier.