An apparatus for separating magnetic particles from a fluid, the apparatus
comprising a tubular housing comprising an interior surface, an exterior
surface, a first inlet port, a first outlet port, a second outlet port,
and a channel; a tubular filter medium disposed within the tubular
housing and comprising an inner surface and an outer surface, the filter
medium partitioning the channel into a first passageway between the first
inlet port of the tubular housing and the second outlet port of the
tubular housing, and a second passageway in communication with the first
outlet port of the tubular housing; and a wire coil wound around the
exterior surface of the tubular housing, the wire coil comprising a first
lead and a second lead. In operation, the wire coil is connected to a
direct current power supply to effect enhanced separation of magnetic
particles from a flowing fluid stream.