 Study demonstrates AOS generates less disinfection by-products than common wastewater treatment technologies WESTMER, CA ACCESSWIRE June 21, 2021 BioLargo, Inc. OTCQB:BLGO, a developer of sustainable technologies and full-service environmental engineering company, announced the publication of a peer-reviewed scientific paper about its patented energy-efficient water disinfection technology the Advanced Oxidation System AOS. The paper, which focused on quantifying the disinfection by-products generated by the AOS, represents a critical milestone in the commercialization of BioLargos innovative water treatment technology. 