The present application relates to an apparatus and method for fluids microbiological control in electrical conductive or not electrical conductive current pipes, by applying electric and magnetic fields generated from alternating electrical current of low voltage and low frequency. The apparatus is characterized by comprising a set of cells (21) of piping being electrical conductor or not, separated by electrical insulating joints (10A), but hydraulically interconnected to form sections (22) arranged or connected in series. The apparatus has an electrical arrangement that allows the direction of the magnetic field generated by the current passing through the insulated electric wire, which goes inside the pipe, be added to the direction of magnetic field generated within the pipe. The result of the sum of these magnetic and electrical fields is a tangential reinforced force. The reinforced resultant has helically—centrifuged form with direction to the inner wall of the tube (which carries lots of electrons). These electromagnetic forces push bacteria to the inner tube surface. These forces stress the membrane of these microorganisms and generating pores in the membrane, which eventually causes total lysis.