초록 ▼

An improved method and apparatus for electrocoagulating waste water or fluids to remove colloidal suspensions therein is described. The apparatus includes at least one module having a plurality of closely spaced, flat electrodes defining a plurality of flow paths therebetween. Each pair of electrode

An improved method and apparatus for electrocoagulating waste water or fluids to remove colloidal suspensions therein is described. The apparatus includes at least one module having a plurality of closely spaced, flat electrodes defining a plurality of flow paths therebetween. Each pair of electrodes is separately mounted in the module and each electrode has a separate connection to a source of alternating current. Each pair may then be rapidly removed from the module for inspection, maintenance, or replacement or alternate pairs may be removed increasing the distance between the electrodes, if desired. The method allows the utilization of a fluidized bed of graphite particles to scrub the electrode faces, and it also permits the repelling forces on suspended solids to be broken on a continuous basis at relatively low current density in a collapsing field of alternating current. A relatively high volume flow rate of waste water or fluids may be rapidly and economically treated to remove contaiminants so that the treated waste water or fluid is suitable for disposal.

대표청구항 ▼

A simplified maintenance electrocoagulator for purifying water or fluids by causing precipitation and/or oxidation of solids or metals to a dewatering sludge for subsequent removal comprising: at least one modular housing having bottom, front, rear and side walls and having an inlet for admitting wa

A simplified maintenance electrocoagulator for purifying water or fluids by causing precipitation and/or oxidation of solids or metals to a dewatering sludge for subsequent removal comprising: at least one modular housing having bottom, front, rear and side walls and having an inlet for admitting water to be purified and an outlet for water and agglomerated solids; a plurality of upstanding, removable electrode assemblies, slidably disposed within said module, each assembly comprising a pair of upstanding metal electrode plates having opposed, closely spaced faces defining a flow path therebetween, insulating frame means interconnecting upstanding edges of said plates and extending laterally across the top and bottom portions thereof, said lateral extensions interconnecting adjacent portions of said electrodes plates and defining a plurality of openings therethrough, the openings being coincident with the flow path defined by the adjacent electrode faces, and means mounted on the upper portion of each electrode for coupling said electrode to a source of alternating current; insulating means disposed between adjacent electrode assemblies within said housing for isolating each of said assemblies; means carried by said electrocoagulator for directing a flow of water to be purified sequentially through the inlet into said housing, through the lower lateral frame extension of each electrode assembly, through the flow path between electrode faces, through the upper lateral frame extension of each assembly, and subsequently through the outlet of said housing; means carried by said electrocoagulator for agitating the water to be purified in the flow path to maintain the water in turbulence while it passes between electrode faces; conductive and abrasive means disposed in the flow path in each assembly for enhancing the alternating current field across said electrodes and for scrubbing the electrode faces when water to be purified is directed through the flow paths between said electrodes.