NOVELTY - A plant for treating water has a pretreatment zone with an ultra-rapid ionic flocculator for sedimentation of solids, a grease trap filter and a deep layer sedimentation filter; a treatment zone with tanks containing ionic flocculator units in the form of cylindrical metal bars supplied with DC electric charge to create electron radiation; and a post-treatment zone with a bacteria-removing filter.    USE - The plant is useful for treating water before recycling in various industries, e.g. for treating municipal waste water to obtain potable water, treating waste water from tanneries or decontamination of lactoserum.    ADVANTAGE - Electric power and space requirements are minimized. The by-products of the treatment are non-polluting scum and sludge. The electroflocculant elements convert impurity molecules into simpler forms, break up electrical charges maintaining the impurities in colloidal suspension or dispersion and cause flocculation. Dissolved gases are also eliminated, by preventing fermentation of the molecules. The process is efficient and economical, and provides high quality water in short treatment times. Light contaminants (e.g. grease, oil, soaps, detergents and proteins), gases and solids are removed effectively, and no further treatment is necessary.    DETAILED DESCRIPTION - A plant for treating water using ionic flocculants has pretreatment, treatment and post-treatment zones. In the pretreatment zone the contaminated water is passed from a receiver into an ultra-rapid ionic flocculator for sedimentation of solids, a grease trap filter and a deep layer sedimentation filter. The treatment zone has a series of tanks containing ionic flocculator units in the form of cylindrical metal bars supplied with a DC electric charge, creating electron radiation to cause flocculation of impurities and leave completely neutral residues, which are removed from the tanks from above or below (depending on density). In the post-treatment zone the residue-free liquid is pumped through a bacteria-removing filter to achieve the required degree of purity.