Abstract: A system for cleaning contaminants from a body of water includes a dam that restricts a flow of water in the body of water. The system also includes a generator that generates electric power from the body of water, and one or more electrodes that induce an electrocoagulation current upstream of the dam. A filter press then removes contaminants that are precipitated from the water of the body of water by the electrocoagulation current.

Abstract: A module for electrocoagulation of contaminated water includes a first treatment chamber that submits the contaminated water to a first electrocoagulation current, and a second treatment chamber that submits the contaminated water to a second electrocoagulation current. The module also includes an intermediate chamber between the first and second treatment chambers that collects foam and precipitates from the first and second treatment chambers and that provides a passage for water exiting the first treatment chamber and entering the second treatment chamber.

Abstract: A module for electrocoagulation of contaminated water includes a first treatment chamber that submits the contaminated water to a first electrocoagulation current, and a second treatment chamber that submits the contaminated water to a second electrocoagulation current. The module also includes an intermediate chamber between the first and second treatment chambers that collects foam and precipitates from the first and second treatment chambers and that provides a passage for water exiting the first treatment chamber and entering the second treatment chamber.

Abstract: A system for cleaning contaminants from a body of water includes a dam that restricts a flow of water in the body of water. The system also includes a generator that generates electric power from the body of water, and one or more electrodes that induce an electrocoagulation current upstream of the dam. A filter press then removes contaminants that are precipitated from the water of the body of water by the electrocoagulation current.

Abstract: A system is disclosed herein for treating wastewater liquid by utilizing aerobic biological species. The contaminated wastewater stream is pretreated in a dissolved air flotation system to remove suspended solid waste, including large particles such as fats, grease, and physically emulsified oils. The purified wastewater containing dissolved waste is thereafter oxygenated and further decontaminated in a bioreactor tank. Biological species in the bioreactor tank consume oxygen and perform bodily functions that converts dissolved waste into easily removable carbon dioxide and suspend solids. Oxygen consumed by the biological species is replenished by pumping the wastewater though a liquid-oxygen mixer. A controller regulates the speed of the pump based on real-time oxygen concentration measurements provided by a corresponding oxygen probe disposed within the wastewater in the bioreactor tank.