A mounting assembly for a food waste disposer includes a lower mounting flange having mounting tabs that engage with mounting ramps of an upper mounting flange. The discharge vessel has a first and a second mutually opposed neck-shaped portion provided with a pair of electrodes arranged in the discharge space. The oxygen may be a component of the gaseous stream or added to the gaseous stream, preferably near a UV radiation source, and is converted to ozone by the UV irradiation. A portion of the other side of the flowing-path space forms a pressure-chamber space. The gate insulation layer is disposed on the source, the drain and the semiconductor layer. The optic superconducting circuit element includes the chip, and a superconducting electromagnetic wave oscillating source and a superconducting Josephson junction device disposed in close vicinity to each other on the chip, the superconducting Josephson junction device detecting the electromagnetic wave transmitted from the superconducting electromagnetic wave oscillating source.