Technical Abstract: Lagoons are important tools for manure management in dairy and livestock operations but are potential sources of transmission of human or animal pathogens and present potential environmental hazards from release of nitrogen and phosphorus. Electroflotation technology utilizes electrolytic gas generation to separate floatable materials from aqueous process fluids and has the added feature that it may also destroy bacteria and certain chemical compounds by oxidation, particularly when chloride is present. A bench scale electroflotation device was fabricated and used to treat samples of manure lagoon water from a California central valley dairy to quantify disinfection, and physical and chemical effects. Additional experiments were performed on model solutions of urea to examine the fate of urea and other chemical effects of treatment.