Device and method for sewage treatment using variable magnetic field

摘要

A device for sewage treatment including a reactor and a magnetic field generator. The reactor includes a water inlet at the upper end, a water outlet on the side wall, and a sludge outlet at the lower end. A stirrer and an aeration device are disposed in the reactor. The reactor is filled with magnetic powder and activated sludge. The magnetic field generator includes a magnetic field tester, an iron cover, a power supply, a transformer, and a spiral coil. The spiral coil loops around the outer surface of the reactor. The transformer, the spiral coil, and the power supply are connected in sequence. The iron cover surrounds the periphery and the bottom of the reactor, and the magnetic field tester is disposed within the reactor. A method for sewage treatment using the device is also provided.

主权项

1. A device for sewage treatment, comprising:
a) a reactor, the reactor comprising an upper end, a side wall, a lower end, and a bottom; b) a stirrer; c) an aeration device; and d) a magnetic field generator, the magnetic field generator being disposed at a periphery of the reactor;wherein:
the reactor comprises a water inlet at the upper end, a water outlet on the side wall, and a sludge outlet at the lower end; the stirrer and the aeration device are disposed in the reactor; the reactor is adapted to be filled with magnetic powder, wastewater, and activated sludge; the magnetic field generator comprises a magnetic field tester, an iron cover, a power supply, a transformer, and a spiral coil; the spiral coil loops around an outer surface of the reactor; the transformer, the spiral coil, and the power supply are connected in sequence; the transformer is adapted to generate a variable magnetic field in the reactor by generating variable currents in the spiral coil, wherein the strength of the variable magnetic field periodically increases and decreases; the iron cover surrounds the periphery and the bottom of the reactor; and the magnetic field tester is disposed within the reactor.