In-situ ultrafine bubble circulation system

An in-situ ultrafine bubble circulation system, comprising:

• a pumping well drilled beneath a ground surface;
• a pump located above the ground surface or in the pumping well, wherein the pump is fluidly connected to the pumping well and is configured to pump a groundwater beneath the ground surface through a pipeline;
• an air compressor located above the ground surface and fluidly connected to the pipeline, wherein the air compressor is configured to inject a gas into the groundwater within the pipeline before the groundwater is transported to the pump;
• a plurality of venture tubes located above the ground surface and connected in series, wherein the venture tubes are fluidly connected to the pump, the pump is further configured to transport the groundwater to the venture tubes, and the venture tubes are configured to form a plurality of first ultrafine bubbles in the groundwater;
• a remediation well drilled beneath the ground surface and separated from the pumping well;
• a hydrocyclone nozzle located in the remediation well and disposed beneath a ground-water table, wherein the hydrocyclone nozzle is fluidly connected to the venture tubes and is configured to break up the first ultrafine bubbles in the groundwater into a plurality of second ultrafine bubbles when the groundwater from the venture tubes passes through the hydrocyclone nozzle;
• and
• a well screen located in the remediation well and around the hydrocyclone nozzle, wherein the well screen is disposed beneath the ground-water table, the well screen is configured to break up the second ultrafine bubbles in the groundwater through the hydrocyclone nozzle into a plurality of third ultrafine bubbles to remediate the groundwater beneath the ground surface using the third ultrafine bubbles.