Abstract: The present invention comprises a novel device with the combined functionality of (1) a piece of furniture and (2) a volumetric light display system, depending on its mode. The third key component of the invention is an actuation system, allowing the invention to change its functionality between that of a piece of furniture and that of a volumetric light display system, achieved by physically moving the device or a portion of the device through space. Such an actuation system is comprised of any number of controllers and powered actuators or actuation subsystems to enable the device to change between a furniture mode and a volumetric light display system mode.

Abstract: Provided is a wastewater treatment system. The wastewater treatment system includes an equalization (EQ) tank which receives contaminated wastewater having a high nutrient content from a plant, a dissolved air flotation (DAF) system and an on-site oxygen generation system which provides gas phase oxygen to the wastewater treated in the equalization (EQ) tank and/or the dissolved air flotation (DAF) system. The dissolved air flotation system includes at least one air dissolved air flotation vessel which may house an aerator grid assembly having a perforated lateral diffuser and optionally, a primary aerator assembly.