Abstract: The invention relates to a system for treating contaminated wastewater, comprising a feed line (3) that leads into a separator (5) and a discharge line (10) that leaves the separator, which discharge line leads directly or indirectly into an access line (16) into an ultrafiltration system (18), wherein the ultrafiltration system (18) has a permeate outlet line (19) and a concentrate outlet line (17). According to the invention, a system and a method for treating contaminated wastewater that operate effectively and reliably with low component complexity are provided or specified. This is achieved in that the permeate outlet line (19) can be connected to the feed line (3) in a controllable manner.

Abstract: The invention relates to a system for treating contaminated wastewater, comprising a feed line (3) that leads into a separator (5) and a discharge line (10) that leaves the separator, which discharge line leads directly or indirectly into an access line (16) into an ultrafiltration system (18), wherein the ultrafiltration system (18) has a permeate outlet line (19) and a concentrate outlet line (17). According to the invention, a system and a method for treating contaminated wastewater that operate effectively and reliably with low component complexity are provided or specified. This is achieved in that the permeate outlet line (19) can be connected to the feed line (3) in a controllable manner.

Abstract: A method of measuring and/or controlling operating data, like soot content, engine speed, initiation of injection, and exhaust gas return of internal combustion engines, the method including the steps of ionizing gases at high temperatures in a combustion chamber of an internal combustion engine that experiences combustion operations, the ionized gases having components with the lowest ionization potentials, applying a current and a voltage to the ionized gases, obtaining electrical measuring signals of the current or voltage indicative of an electrical conductivity of the ionized gases, integrating the electrical measuring signals to define a curve plot of the electrical conductivity, detecting a quantity of components of the ionized gases that have the lowest ionization potentials based on the integrated electrical measuring signals, the detected quantity of components being associated with a portion of the electrical measuring signals and being indicatives of an amount of soot formed during each of the com