Patent ID: 7569142

Claim:
An apparatus for liquid treatment, said apparatus comprising: a magnetic treatment unit; a centrifugal separator for separating material from a liquid having suspended material; and a flow system for causing a liquid with said suspended material to flow in a stream passing first through said magnetic treatment unit and then said liquid with all of said suspended material still being in said liquid passing through said centrifugal separator; and wherein said magnetic treatment unit includes a coil unit to electrically excite at least one coil surrounding said stream for creating a high frequency magnetic flux which selectively subjects said material suspended in said liquid with a high frequency magnetic flux having a frequency range of 10 kHz to 100 kHz, said high frequency magnetic flux changes surface conditions of said material suspended in said liquid such that said material adheres to form agglomerations of coagulated particles which are then separated from said liquid in said centrifugal separator; wherein said flow system comprises a first pipe conveying water from a source of dirty water to a pump having a controller, a second pipe conveying water from the pump to the magnetic treatment unit, a third pipe conveying water from the magnetic treatment unit directly to the centrifugal separator, and a fourth pipe conveying clean water from the centrifugal separator to a clean water delivery station.