TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred System: The system further comprises: a recycling system to return the treated tailings filtrate or the separated liquid to the electrolytic treatment system. The pre-treatment system comprises: a screening system to remove all particles of greater than 1 mm from the tailings; a skimmer to remove floating oils from the tailings to result in less than or equal to 2 mg of floating oil per L of tailings; or both; a separator for separating the oxyhydrogen-rich gas from the electrolytically treated tailings; and a transporter for transporting the oxyhydrogen-rich gas to a secondary system. The electrolytic treatment system comprises: at least one pair of electrodes submersed in an aqueous liquid; and a source of a continuously pulsed electrical signal connected to least one of the electrodes to generate bubbles of an oxyhydrogen-rich gas. The secondary system is a fuel cell or a combustion device. The separation system comprises: at least one system for coagulating, coalescing, precipitating, settling and/or for flocculating the solids.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further involves: electrolytically treating the treated tailings filtrate or the separated liquids, where pre-treating the tailings involves screening the tailings to remove all particles of greater than 1 mm, and removing floating oils from the tailings to result in less than or equal to 2 mg of floating oil per liter (L) of tailings; or both; separating oxyhydrogen-rich gas from the electrolytically treated tailings; and transporting the oxyhydrogen-rich gas to a secondary process. The method of electrolytically treating the pre-treated tailings involves: applying a continuously pulsed electrical signal to at least one of a pair of electrodes submersed in an aqueous liquid to generate bubbles of an oxyhydrogen-rich gas; and contacting the pre-treated tailings with the oxyhydrogen-rich gas bubbles. The pulsed electrical signal has a mark-space ratio of approximately 1:1 to 10:1 and a pulse frequency of approximately 10Hz to 250 kHz. The aqueous liquid is the pre-treated tailings. The secondary process is production of energy in a fuel cell or combustion device. Separating solids from liquids in the electrolytically treated tailings involves: coagulating the solids, coalescing the solids, precipitating the solids, settling the solids, and/or flocculating the solids; and separating the coagulated solids, coalesced solids, precipitated solids, settled solids, or flocculated solids from the liquids. EXAMPLE - No suitable example given.