Patent ID: 6346197
Filing Date: 2002-02-12
Classification: C02F

Abstract:
A process for removing contaminants from a wastewater stream, comprising:(a) feeding the wastewater stream into an electrochemical cell comprising at least a pair of conductive plates stacked in parallel spaced relation, wherein electricity is passed into said conductive plates and through the wastewater stream to produce a coagulated stream; (b) injecting a coagulating reagent into the coagulated stream from the electrochemical cell and passing the coagulated stream to a mixer, wherein said mixer contacts precipitated solids present in the coagulated stream with said coagulating reagent to produce a reagent-mixed liquid; (c) passing the reagent-mixed liquid from said mixer past a vent and into a flotation cell where a flotation cell liquid is produced through the removal of a majority of coagulated particles from the reagent-mixed liquid.