Oscillating bubble reactor

A decontamination system, comprising:

• a contaminated liquid source;
• and
• an oscillating bubble reactor connected to the contaminated liquid source and configured to treat the contaminated liquid, wherein the oscillating bubble reactor comprises:
• a stream inlet configured to receive a contaminated liquid stream from the contaminated liquid source,
• a reactant gas source,
• a serial venturi reactor connected downstream to the stream inlet and configured to receive the contaminated liquid stream, wherein the serial venturi reactor comprises a set of serially connected constrictions alternating with pipe segments having a larger diameter than a smaller diameter of the constrictions,
• a micro-nano-bubble aerator (MNBA) in the stream inlet or the serial venturi reactor, the MNBA being connected to the reactant gas source and configured to release reactant gas microbubbles, nanobubbles, or a combination thereof into the contaminated liquid stream from the reactant gas source, and
• a treated stream outlet connected downstream to the serial venturi reactor.

A method of decontaminating a contaminated liquid stream, comprising:

• forming reactant gas microbubbles of a reactant gas, nanobubbles, or a combination thereof in a contaminated liquid stream, wherein the reactant gas reacts with a contaminant in the contaminated liquid stream;
• flowing the contaminated liquid stream and reactant gas microbubbles or nanobubbles through a serial venturi reactor, wherein the serial venturi reactor comprises a set of serially connected constrictions alternating with pipe segments having a larger diameter than a smaller diameter of the constrictions such that the reactant gas microbubbles or nanobubbles expand due to lower relative pressure in the constrictions and contract due to higher relative pressure in the pipe segments having a larger diameter;
• and
• recovering a treated stream from the serial venturi reactor, wherein the treated stream has a reduced concentration of the contaminant.