Abstract: A method and a device for the analysis of gas components of a matrix employ two sensors, which each comprise a cavity enclosed by a membrane. Both membranes, each on one side of the matrix and on the other side, are exposed to a purge gas and subsequently, the timeline of the differential pressure ?ps starting at a start time tA is measured, which is created between the sensors as a consequence of permeation of gas components of the matrix and/or the purge gas through both membranes. From the timeline, a point of time tE is determined, at which the measured differential pressure equals the differential pressure at the point of time tA, whereby the gas component of the matrix, which is different from the purge gas, and its genesis is determined from the time difference ?t=tE?tA.

Abstract: A pipe system comprising i) an exploratory pipe extracting a fluid containing gas from waterways, ii) an injection pipe returning fluid depleted of gas and iii) a plurality of gas traps, wherein I) the gas traps are connected to the exploratory pipe and to the injection pipe such that the fluid is transferred from the exploratory pipe through the gas traps to the injection pipe, II) the gas traps disposed at specific distances vertically one above the other and relative to the fluid deposits to be depleted and connected together such that rising fluid passes from the exploratory pipe to a first gas trap located at a first pressure level at which a first gas/gas mixture is separated, whereupon depleted fluid passes to a second gas trap at a predefined pressure level in which a second gas/gas mixture is separated, wherein the first pressure and the second pressure are different from one another, and III) the gas traps are connected to one or more gas extraction devices.

Abstract: A method and a device for the analysis of gas components of a matrix employ two sensors, which each comprise a cavity enclosed by a membrane. Both membranes, each on one side of the matrix and on the other side, are exposed to a purge gas and subsequently, the timeline of the differential pressure ?ps starting at a start time tA is measured, which is created between the sensors as a consequence of permeation of gas components of the matrix and/or the purge gas through both membranes. From the timeline, a point of time tE is determined, at which the measured differential pressure equals the differential pressure at the point of time tA, whereby the gas component of the matrix, which is different from the purge gas, and its genesis is determined from the time difference ?t=tE?tA.

Abstract: The invention relates to a device for depletion of gases from waterways, including: a pipe system, which has i) an exploration pipe for receiving the fluid containing the gas, ii) an injection pipe for returning the fluid depleted of the gas, and iii) at least one gas trap which is arranged in the device such that a selected pressure can be generated in the gas trap, wherein the gas trap is functionally connected with both the exploration pipe and the injection pipe such that the fluid can be transferred from the exploration pipe via the gas trap into the injection pipe and the gas trap is configured so as to be functionally connectable with a gas receiving device, wherein I) the gas traps are connected with both the exploration pipe and the injection pipe such that the fluid can be transferred from the exploration pipe via the gas traps into the injection pipe, II) the gas traps are arranged at certain distances vertically on top of one another and relative to the fluidic deposit to be depleted and are funct

Abstract: A method measures the concentration of the partial pressure of gases, particularly oxygen, in fluids. Know methods for measurements under rough conditions, e.g., measurement of the oxygen partial pressure in grounds, dumps or in the ground water are completely unsuitable. In the present method as described, in the internal area of a hollow vessel closed off to the outside, whose wall consists at least partially of a gas-specific permeable synthetic material that is in contact with the fluid with its external side, the partial pressure change proportional to the gas concentration is measured as a time-scanning of pressure change or as a change of a pressure-dependent physical variable. The measuring principle is very simple and is particularly suitable for the determination and long-time monitoring of the oxygen concentration and of further gases and can also be used in problematic locations.

Abstract: A closed &Dgr;Pstat-installation is disclosed for the potential-independent control of the pressure difference for continuous column tests under high hydrostatic pressure, as well as a pressure difference control process useful in particular for carrying out migration tests in pressure columns. By coupling two potential bottles into a closed vessel system, the gas or fluid pressure required to carry out the continuous column tests can be regulated at any desired height independently of outer influences. The pressure difference required to move the liquid is adjusted by setting the potential bottles at predeterminable heights.