Re “San Diego may scale back its ambitious Pure Water sewage-purification plans — or scrap some entirely” (April 21): In February 2022, I wrote that the city was foolishly committing to spend up to $4 ...
To help alleviate health issues caused by pathogens in water, a team of CU Boulder mechanical engineering students collaborated on a senior capstone project last spring to create PureSip, a prototype ...
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