Abstract: Disclosed is a dissolved air flotation (“DAF”) device. The DAF device creates an elongated separation zone to permit agglomerated impurities to be more effectively removed from the influent. A header is included at the lower extent of the separation zone to collect the clarified effluent. In one possible embodiment, a collection channel with a series of intake apertures is connected to the header. In another embodiment, intake apertures are located along the header. In either embodiment, the header reduces the rate at which the effluent is collected and, thereby, reduces the inadvertent collection of agglomerated impurities.

Abstract: The present invention relates to membrane bioreactor (“MBR”) system that includes a mechanical membrane reciprocation system to reduce or eliminate membrane fouling. The disclosed MBR system can be operated with higher flux and lower fouling than MBR systems using air scouring. Furthermore the system can remove nitrogen and phosphorous with one RAS and one or no internal recirculation line. The membrane can be reciprocated by a low RPM motor connected to a pulley via belt to rotate rotor to convert rotational motion into reciprocating motion of membrane. Various mechanical means can also be employed to create the reciprocating motion.

Abstract: The present disclosure relates to a superconducting rotating electrical machine and a manufacturing method for a high temperature superconducting film thereof. The superconducting rotating electrical machine includes a stator, and a rotor rotatable with respect to the stator, the rotor having a rotary shaft and a rotor winding. Here, the rotor winding includes tubes disposed on a circumference of the rotary shaft and each forming a passage for a cooling fluid therein, superconducting wires accommodated within the tubes, and a cooling fluid flowing through the inside of the tubes. This configuration may allow for direct heat exchange between the superconducting wires and a refrigerant, resulting in improvement of heat exchange efficiencies of the superconducting wires.