Patent ID: 6962654

Claim:
A dissolved gas supply system comprising: an air supply system adapted to pressurize air from the atmosphere; a pressure swing adsorption system having a first container and a second container, each container containing molecular sieve media, the pressure swing adsorption system also having a control valve to alternate a flow of air into the first and second containers, and a flow of nitrogen adsorbed onto the media and out of the first and second containers, the air supply system providing pressurized air to the pressure swing adsorption system, concentrated oxygen exiting the pressure swing adsorption system; a fluid mixing system adapted to draw water from a treating process, and to dissolve the concentrated oxygen from the pressure swing adsorption system into the water to saturation levels, excess oxygen from the fluid mixing system passing through an outlet; an oxygen pressurization system adapted to pressurize the concentrated oxygen exiting the pressure swing adsorption system and to supply the pressurized oxygen to the fluid mixing system, the oxygen pressurization system having a low pressure tank to store the concentrated oxygen exiting the pressure swing adsorption system, a compressor to pressurize the oxygen, a high pressure tank to store the high-pressure oxygen, the high pressure oxygen being supplied to the fluid mixing system, the fluid mixing system further comprising a fluid mixer; and a control system adapted to monitor the concentration of the oxygen exiting the pressure swing adsorption system, the control system adapted to selectively alternate the flow of pressurized air from the air supply system into the first container or the second container in response to a concentration of oxygen exiting the first and second containers.