AWWA WQTC69374

The goal of this study was to determine the occurrence and removal of amino acids (AAs) during drinking water treatment processes. The fate of AAs was determined in bench-scale laboratory testing as well as in samples collected from full-scale drinking water treatment plants (WTPs). Bench-scale coagulation testing was performed on three waters using alum with no pH adjustment and a tapered flocculation scheme. Full-scale samples were collected from sixteen WTPs located across the United States which were treated water impaired by upstream wastewater discharges or algal blooms during the summer/fall of 2006/2007. The samples were collected along the full-scale treatment train after each unit process. AAs were determined in each sample as well as basic water quality (DOC, DON, etc.). Includes 16 references, figures.