Abstract: --A device and method for dewatering a mass of material and a method and system for recycling a biogenic material. A vertical press has a press space formed between a tool provided with openings and a press plunger movable relative thereto. Conveying means convey the mass of material from a feed side toward an opposite discharge side. The press space is laterally confined by opposite side walls but is not confined in the direction of the feed side and the discharge side. A biogenic material is converted microbially and/or enzymatically into gas and fermentation residues in a fermentation plant and the latter are dewatered by means of a vertical press to such an extent that thermal utilization is made possible.

Abstract: The invention relates to a filter for fluids, in particular water, having a filter surface and a rotary spray arm contained in said filter, said arm conducting a flushing medium against the filter surface. To achieve an increase in the throughput capacity of the filter and to improve the flushing of the filter surface, the filter is equipped with a fluid-proof drum motor, which drives at least one spray arm.

Abstract: A mobile heat exchanger cleaning system, in particular for power plant heat exchangers, allows a heat exchanger to be safely and reliably cleaned. The cleaning system has an apparatus for collecting, introducing and removing cleaning bodies, a pump for pumping a fluid with cleaning bodies and at least one connector connected with the apparatus and the pump for releasably connecting the cleaning system with a heat exchanger.

Abstract: The invention relates to a filter for fluids, in particular water, having a filter surface and a rotary spray arm contained in said filter, said arm conducting a flushing medium against the filter surface. To achieve an increase in the throughput capacity of the filter and to improve the flushing of the filter surface, the filter is equipped with a fluid-proof drum motor, which drives at least one spray arm.

Abstract: In a system for cleaning tubes of tube-bundle type heat exchangers including a plurality of tubes (5) arranged in parallel between two chambers (10a, 10b) and flown through by a fluid medium, in particular crude oil, at a temperature above 120° C., wherein, for cleaning the tubes (5), deposits on their inner walls, such as coking, dirt particles or the like, are detached by cleaning bodies passing through the tubes (5), and carried out of the tubes (5), for cleaning the inner wall of the plurality of tubes (5) of the heat exchanger during the operation of the heat exchanger (10), it is provided that the cleaning bodies (1a–1h) are formed in such a way that they are resistant to high temperatures (above 120° C.

Abstract: In a system for cleaning tubes of heat exchangers flown through by a fluid medium, in particular crude oil, having a temperature in excess of 120° C., wherein, for cleaning a tube, deposits such as dirt particles or the like adhering to its inner wall are detached by cleansing off and carried out of the tube, for cleaning the inner wall of the heat exchanger tubes during the operation of the heat exchanger, it is provided that cleaning bodies withstanding high temperatures (in excess of 120° C.

Abstract: In a system for cleaning tubes of tube-bundle type heat exchangers including a plurality of tubes (5) arranged in parallel between two chambers (10a, 10b) and flown through by a fluid medium, in particular crude oil, at a temperature above 120° C., wherein, for cleaning the tubes (5), deposits on their inner walls, such as coking, dirt particles or the like, are detached by cleaning bodies passing through the tubes (5), and carried out of the tubes (5), for cleaning the inner wall of the plurality of tubes (5) of the heat exchanger during the operation of the heat exchanger (10), it is provided that the cleaning bodies (1a-1h) are formed in such a way that they are resistant to high temperatures (above 120° C.

Abstract: In a system for cleaning tubes of heat exchangers flown through by a fluid medium, in particular crude oil, having a temperature in excess of 120° C., wherein, for cleaning a tube, deposits such as dirt particles or the like adhering to its inner wall are detached by cleansing off and carried out of the tube, for cleaning the inner wall of the heat exchanger tubes during the operation of the heat exchanger, it is provided that cleaning bodies withstanding high temperatures (in excess of 120° C.