Abstract: Apparatus for Treatment of Liquid A flow-through assembly for electrocoagulation treatment of a liquid has a replaceable cartridge with sacrificial electrodes held in a chamber arranged for flow of the liquid through and over the sacrificial electrodes. The chamber has a pivoting door which can be opened for removal and replacement or refurbishing of the cartridge. One electrode for providing a current to electrochemically dissolve the sacrificial electrodes is located in the chamber with a second electrode on the inner face of the door, with the sacrificial electrodes located between the current-providing electrodes with chamber door closed in use.

Abstract: A plant for treatment of a waste water stream comprising fat includes pre-treatment apparatus for removal of liquid oil and gross contaminants, a flow-through assembly for electrocoagulation treatment of a liquid, a floc-separation apparatus arranged for removal of a flocculated fat-containing layer from the aqueous dispersion to provide clarified aqueous solution for disposal and a controller arranged to control voltage and/or current across the electrodes and the flow of the waste water stream through the components of the plant. Also disclosed are methods for using the plant to provide efficient separation with minimized power consumption as flow and contaminant level vary.