The invention relates to a device (10) for treating a liquid with a plasma, wherein the device (10) has a high-voltage electrode (20) as well as a liquid-permeable ground electrode device (30). The ground electrode device (30) has a flat, conductive region (32) and a porous region (34) arranged on the flat, conductive region (32), wherein the conductive region (32) is liquid-permeable along its flat extension. A discharge space (40) is formed between the ground electrode device (30) and the high-voltage electrode (20). A first dielectric (50) is arranged on the high-voltage electrode (20) so that a plasma can be generated in the discharge space (40) by means of a dielectric barrier discharge. Moreover, the device (10) has an initial flow volume (60) into which the liquid (12) can be conducted, and that is surrounded by a wall (62). At least in a first region, the wall (62) of the initial flow volume (60) has the ground electrode device (30) such that the initial flow volume (60) is connected to the discharge space (40) in a liquid permeable manner via the ground electrode device (30).

A Far-UVC excimer light source contains a first electrode adapted to be energized, a second electrode adapted to be energized, a body defining a cavity that is filled with an excited molecule complex between the first and second electrodes; and a Far-UVC optical dielectric coating filter which is a Far-UVC filter attached to the interior side of the first electrode and adapted to filter a Far-UVC light excited in the cavity of the body. The Far-UVC dielectric coating is located inside the light source, between the cavity with the excited molecules and the first electrode. The Far-UVC filter attached to the interior side of the first electrode is a transmissive Far-UVC optical filtering dielectric coating or coated glass which is integrated, placed on, or near the interior side of the first electrode inside the light source.

The invention relates to a device (10) for treating a liquid with a plasma, wherein the device (10) has a high-voltage electrode (20) as well as a liquid-permeable ground electrode device (30). The ground electrode device (30) has a flat, conductive region (32) and a porous region (34) arranged on the flat, conductive region (32), wherein the conductive region (32) is liquid-permeable along its flat extension. A discharge space (40) is formed between the ground electrode device (30) and the high-voltage electrode (20). A first dielectric (50) is arranged on the high-voltage electrode (20) so that a plasma can be generated in the discharge space (40) by means of a dielectric barrier discharge. Moreover, the device (10) has an initial flow volume (60) into which the liquid (12) can be conducted, and that is surrounded by a wall (62). At least in a first region, the wall (62) of the initial flow volume (60) has the ground electrode device (30) such that the initial flow volume (60) is connected to the discharge space (40) in a liquid permeable manner via the ground electrode device (30).

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.