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BioLargo Begins Next Step in Preparing Garratt-Callahan Minimal Liquid Discharge System for Commercial Launch

WESTMINSTER, CA / ACCESSWIRE / December 8, 2021 / BioLargo, Inc. (OTCQB:BLGO), a developer of sustainable cleantech technologies and full-service environmental engineering company, has taken the next step to commercialize the new wastewater treatment tec