Abstract: A process and apparatus for increasing biological activity in waste treatment ponds and lagoons. In this process a floating fluid circulator having an annular space between nested frusto-conical surfaces is operated in a pond or lagoon. An aerator within the scope of the floating fluid circulator is provided. That aerator includes an upper float chassis having a frusto-conical configuration, a sectional diverter arranged in a lower portion of the upper float chassis, the sectional aerator having a lower diverter portion and motor driven means mounted on the upper float chassis connected to a rotatable impeller.

Abstract: A apparatus for depositing one or more thin film layers on one or more continuous web or discrete substrates. The apparatus includes a pay-out unit for dispensing one or a plurality of webs, a deposition unit that deposits a series of one or more thin film layers thereon, and a take-up unit that receives and stores the webs following deposition. In a preferred embodiment, deposition occurs through plasma enhanced chemical vapor deposition in which a plasma region is formed between a cathode in the deposition unit and one or more vertically-oriented webs. The instant deposition apparatus includes a support system for guiding and stabilizing the transport of one or more webs or substrates through the deposition chambers. The support system includes a magnetic guidance assembly and an edge-stabilizing assembly that operate to inhibit perturbations of the motion of a web or substrate in directions other than the direction of transport through the apparatus.

Abstract: A high throughput apparatus for depositing one or more thin film layers on a plurality of continuous web substrates. The apparatus includes a pay-out unit for dispensing a plurality of webs, a deposition unit that receives the plurality of webs and deposits a series of one or more thin film layers thereon, and a take-up unit that receives and stores the plurality of webs upon deposition of the thin film layers. High throughput is achieved through the simultaneous deposition of thin films on a plurality of web substrates. In a preferred embodiment, deposition occurs through plasma enhanced chemical vapor deposition in which a plasma region is formed between a cathode in the deposition unit and the plurality of webs. Deposition precursors are introduced into the plasma region and are transformed to reactive species that form a thin film layer on the plurality of web substrates.