System and method for oxygenation of waste water

A system for dissolving oxygen in a waste water collection basin, comprising:

• a) a source of oxygen, the oxygen source being connected to a discharge pipe having an end located in the collection basin,
• b) a suction pipe having an end located in the collection basin, and
• c) a pump connected to the suction pipe and to a mixing unit which is connected to the oxygen source,
• wherein the discharge pipe has a side wall, wherein the discharge pipe has a plurality of holes disposed in the side wall, and wherein the discharge pipe includes a blind flange connected to the end of the discharge pipe.

A system for oxygenation of waste water in a collection basin, comprising:

• a) means for providing pressurized oxygen,
• b) means for withdrawing waste water from the collection basin,
• c) means for mixing oxygen from the oxygen providing means with waste water from the withdrawing means to produce oxygen-enriched water, and
• d) means for conveying said oxygen-enriched water to the collection basin and for discharging said oxygen-enriched water into the collection basin,
• wherein the discharging means is positioned at a vertical level which is different from a vertical level of the withdrawing means.

A system for oxygenation of waste water in a collection basin, comprising:

• a) means for providing pressurized oxygen,
• b) means for withdrawing waste water from the collection basin,
• c) means for mixing oxygen from the oxygen providing means with waste water from the withdrawing means to produce oxygen-enriched water, and
• d) means for conveying said oxygen-enriched water to the collection basin and for discharging said oxygen-enriched water into the collection basin,
• wherein the discharging means includes a conduit having a longitudinal axis, and wherein the conduit includes means for directing fluid flow out of the conduit in a direction which is non-parallel to said longitudinal axis.

A method of oxygenating waste water in a collection basin, the method comprising:

• a) withdrawing waste water from the collection basin,
• b) mixing the waste water withdrawn in step (a) with oxygen to form oxygen-enriched water, and
• c) injecting said oxygen-enriched water into the collection basin,
• wherein the injecting step and the withdrawing step are performed simultaneously at different vertical levels within the collection basin.

A method of oxygenating waste water in a collection basin, the method comprising:

• a) withdrawing waste water from the collection basin,
• b) mixing the waste water withdrawn in step (a) with oxygen to form oxygen-enriched water, and
• c) injecting said oxygen-enriched water into the collection basin,
• wherein the injecting step comprises delivering the oxygen-enriched water to the collection basin through a conduit having a longitudinal axis, and directing the oxygen-enriched water out of the conduit in a direction which is non-parallel to said longitudinal axis.