Abstract: A radial flow electrofilter having a plurality of parallel planar horizontal electrodes. The filter may be provided with backflush means, in which case the filter medium preferably consists of non-deformable particles, or else a removable filter pack, preferably employing polyurethane foam, may be employed. In operation, finely divided solids, contained in a liquid of low electrical conductivity, may be efficiently removed by passing the liquid radially through the filter, while subjected to a unidirectional current electric field, from the periphery of the filter toward its center.

Abstract: A radial flow electrofilter having a plurality of parallel planar horizontal electrodes. The filter may be provided with backflush means, in which case the filter medium preferably consists of non-deformable particles, or else a removable filter pack, preferably employing polyurethane foam, may be employed. In operation, finely divided solids, contained in a liquid of low electrical conductivity, may be efficiently removed by passing the liquid radially through the filter, while subjected to a unidirectional current electric field, from the periphery of the filter toward its center.

Abstract: A radial flow electrofilter having a vertical cylindrical fluid distributor means adapted to serve as a grounded electrode, a vertical central tubular collector also adapted to serve as an electrode and at least one, preferably a plural odd number, of permeable cylindrical electrodes concentrically positioned between the distributor and the collector. The filter medium preferably consists of non-deformable particles, the filter being provided with backflushing means. In operation, finely divided solids, contained in a liquid of low conductivity, may be efficiently removed by passing the liquid radially through the filter, while subjected to a unidirectional current electric field, from the periphery of the filter toward its center.

Abstract: An electric treater and process for electrically resolving emulsions into organic and aqueous phases. The treater includes a horizontally positioned, planar, permeable electrode which is the only electrode means positioned in the treater. The interface between the bodies of organic and aqueous material which collect in the treater is kept at a position intermediate the electrode and a distributor means for introducing emulsion into the treater. The emulsion is resolved at the water surface, which serves as a grounded electrode.

Abstract: A flush mounted probe for corrosion testing by assembling into a nipple secured to a pipeline. The nipple is of conventional design such as employed in hot tapping installations. The probe is arranged upon assembly within the nipple to place a plurality of planar-surfaced metallic electrodes in substantially parallel alignment with the inner surface of the sidewall of the pipeline. The probe is arranged by its construction for installation and removal in the same manner as blind plugs and other assessories using the hot tapping equipment. No special tools or parts are required to install and remove the present probe, even under extremely elevated pressure conditions in a pipeline.