PROCESS FOR REMOVING HEAVY METALLIC ELEMENTS IN SUSPENSION IN A LIQUID

摘要

1. Process for removing suspended particles from a liquid, comprising the following steps : - addition of particles of a finely-divided ferromagnetic additive to the liquid containing the particles to be removed ; - agitation of the liquid, whereby to form a suspension of the ferromagnetic additive, and bring about mixing of the latter with the particles to be extracted ; - application of a magnetic field to said liquid ; characterized in that said agitation of the liquid and the application of the magnetic field are provided by means of a single apparatus constituted by a rotatable shaft carrying permanent magnets whose adjacent poles have the same polarity.