System for purifying liquids

Claim 1

A treatment system for flowable materials composed of liquids and solids which includes: A. a line for the flow, said line having an upstream with a main inlet and a downstream with a main outlet; B. mixing means in the line to maintain a relatively uniform consistency of the materials; and C. purifying means arranged downstream of said mixing means and including a microwave generator, and guide means to direct electromagnetic energy in a path toward a target area of said purifying means, D. said line including a pattern in the target area to conduct flow of the flowable material, said pattern comprising a coil which is convoluted to define a whirling or turbulent flow pattern of the flowable material to impart a mixing and wiping action within said coil for even excitation of the flowable material by the electromagnetic energy and to prevent build up of solids on the interior of said coil; and E. control means to control flow through said line in the target area, said control means including temperature sensing means to measure differential temperature of flowable material between the upstream and downstream coil zones and to provide a variable exposure time consistent with pre-established sterilization needs of the particular flowable material being treated and to maintain the temperature below boiling.