[Gasifying wastewater systems and components thereof, namely, plate aerators, pipelines, compressors, and pumps, all the aforesaid goods being in connection with plate aerators and being for use in wastewater * gasifying * treatment technology] *Equipment and systems for gasifying wastewater, namely, aerator elements, in particular plate aerators, pipelines in connection with plate aerators, compressors, pumps, all the aforesaid goods being in connection with plate aerators and being for use ...