Abstract: A method and device provide for the deionization and contaminants removal or degradation of aqueous liquids, particularly drinking water. The water is caused to flow in a first direction and while flowing it is treated so as to simultaneously effect deionization via electromigration and degradation or removal of the contaminants therein on particle surfaces. The water flows upwardly through a bed formed by a mixture of conductive and non-conductive particles, such as sand and graphite particles, with the particles of the bed being separated from an anode (mounted on one side of the bed) by an anionic membrane, and a cathode (mounted on the other side of the bed) by a non-ionic porous membrane. According to the invention the following ions and contaminants can be destroyed, or removed from, the water: calcium, magnesium, and other water hardening ions; sodium, iron, bacteria; chlorine, phenol, odor and color contaminants; and pesticides.

Abstract: A cap for use with water treatment apparatus specifically adapted to cooperate with an open neck of a bottle having an exterior projection formed on the neck thereof. The cap includes a lower component having a circumferentially continuous lower portion which has an interior projection adapted to cooperate with the exterior projection of the bottle, and surfaces for cooperatively engaging a tubular member mounted in the open neck of the bottle. The cap lower portion also includes a top portion having a central part and a peripheral part which has a plurality of circumferentially spaced through-extending openings, the openings disposed substantially 360 degrees around the circumference of the cap.

Abstract: Contaminants in normal drinking water may be easily and effectively reduced. An elongated tube has first and second ends and is connected with an interference fit at its first end to the interior surface of a neck of a conventional bottle. Water treatment media is disposed within the tube adjacent its second end, such as activated charcoal, silver impregnated media, ion exchange resins, or calcium and/or magnesium leaching material. The tube includes a flange adjacent its first end which minimizes the possibility that water will enter the bottle except by flowing through the open first end of the tube. A cap is provided for disposition over the tube, the cap sealing the open first end of the tube to prevent water from flowing through it, and the cap apertured substantially 360 degrees around its circumference to allow free flow of water from the bottle which has already been treated by the treatment media.