Aquatic Radionuclide Monitoring System

A flow-through system for monitoring radionuclides in aqueous solution, the flow-through system comprising:

• a flow-through system input configured to receive a source stream of an aqueous solution;
• a reverse osmosis unit comprising a reverse osmosis input, a reverse osmosis output, and a concentrate output;
• a detection portion comprising a detection portion input and a detecting portion output;
• a spectrometer positioned at the detection portion;
• a combining portion comprising a combining input and a combining output;
• and
• a flow-through system output;
• wherein:
• the combining input is in fluidic communication with the flow-through system input and the detection portion output, and is configured to receive the source stream from the flow-through system input and a concentrate stream outputted by the detecting portion output;
• the combining output is configured to output a combined stream, which comprises the source stream and the concentrate stream outputted by the detecting portion output;
• the reverse osmosis input is in fluidic communication with the combining output and is configured to receive the combined stream;
• the reverse osmosis unit is configured to separate the combined stream into the concentrate stream and a filtrate stream, output the concentrate stream via the concentrate output, and output the filtrate stream via the reverse osmosis output;
• the concentrate output is in fluidic communication with the detection portion input and the detection portion input is configured to receive the concentrate stream outputted by the concentrate output;
• the detection portion output is configured to recirculate the concentrate stream into the combined stream;
• the spectrometer is operable to obtain a measurement of radionuclides in an amount of the concentrate stream within the detection portion;
• and
• the flow-through system output is in fluidic communication with the reverse osmosis output and is configured to output the filtrate stream.