Electrochemical system and method for the treatment of water...

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 1/461 (2006.01) C25B 9/00 (2006.01)

Patent

CA 2729599

Contaminants are removed from raw water or discharge water from plants, such as sewerage and industrial plants, by applying direct current through an array of spaced, alternately charged electrodes to eliminate or minimize clogging of the electrodes with precipitated contaminants. Polarity may be switched periodically to assist in eliminating or minimizing clogging. In illustrated embodiments, electrode arrays are contained in housings of dielectric material to form modules, To increase processing capacity, the modules are arranged in parallel arrays. Alternatively, a single module is scaled up for large or industrial applications or scaled down for personal use. Instead of housing the electrode arrays in modules through which liquid passes, the electrode arrays for some batch applications are dipped in the water or aqueous solutions.

Les contaminants sont retirés de leau brute ou des eaux usées des usines, comme les stations dépuration et usines industrielles, en appliquant un courant continu à travers une matrice délectrodes espacées chargées alternativement pour éliminer ou minimiser lengorgement des électrodes avec les contaminants précipités. La polarité peut être permutée périodiquement pour aider à lélimination ou la minimisation de lengorgement. Dans les modes de réalisation illustrés, les matrices délectrodes sont contenues dans des boîtiers de matériau diélectrique pour former des modules. Pour augmenter la capacité de traitement, les modules sont disposés en matrices parallèles. En variante, un seul module est agrandi pour des applications larges ou industrielles ou réduit pour un usage personnel. Plutôt que dinclure les matrices délectrodes dans des modules à travers lesquels passe du liquide, les matrices délectrodes pour certaines applications en lot sont trempées dans leau ou dans des solutions aqueuses.

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