Device for waste water treatment

A membrane or diaphragm-free electrolytic cell for removal of a metal(s) present as a contaminant(s) in waste water comprising a nonconductive cell box having an upper peripheral flange, anode and cathode bus bars located on said cell box enternally of the cell box, and below said flange, box inlet and outlet means to pass the liquid through electrodes contained in said box, means to space anodes and cathodes contained within said cell box one from the other, a plurality of reticulate cathodes, and means connecting the anodes and cathodes, respectively, to said bus bars and the bus bars to a source of electrical energy whereby the metal contaminant(s) present in such water are deposited on the reticulate cathodes, the spacers being electrically non-conductive and being at least one of peripheral protrusions vertically along the sides of the box and along the bottom of the box, bars affixed to upper surfaces of the anodes and having at least two tongues extending vertically downward along surfaces of the anodes, and snaps affixed to the anodes.