| 摘要 |
<p>A system and method for control of a gas or chemical. In one embodiment, the system comprises an oxygenator for receipt of wastewater and oxygen for dissolving, mixing, diffusing, or infusing the oxygen into the wastewater, and a recirculation mechanism configured to increase the flow rate in the oxygenator and/or level of oxygen dissolved in the wastewater.</p> |
