{"accessLevel": "public", "bureauCode": ["020:00"], "contactPoint": {"fn": "Darren Lytle", "hasEmail": "mailto:lytle.darren@epa.gov"}, "description": "Across the United States, high levels of ammonia in drinking water\r\nsources can be found. Although ammonia in water does not pose\r\na direct health concern, ammonia nitrification can cause a number\r\nof issues and reduce the effectiveness of some treatment processes.\r\nAn innovative biological ammonia-removal drinking water\r\ntreatment process was developed and, after the success of a pilot\r\nstudy, a full-scale treatment system using the process was built in\r\na small Iowa community. The treatment plant included a unique\r\naeration contactor design that is able to consistently reduce\r\nammonia from 3.3 mg of nitrogen/L to nearly nondetectable after\r\na biofilm acclimation period. Close system monitoring was\r\nperformed to avoid excess nitrite release during acclimation, and\r\nphosphate was added to enhance biological activity on the basis\r\nof pilot study findings. The treatment system is robust, reliable,\r\nand relatively simple to operate. The operations and effectiveness\r\nof the treatment plant were documented in the study. \n\nThis dataset is associated with the following publication:\nLytle , D., D. Williams , C. Muhlen , M. Pham , K. Kelty , M. Wildman, G. Lang, M. Wilcox, and M. Kohne. The Full-Scale Implementation of an Innovative Biological Ammonia Treatment Process.   Journal AWWA. American Water Works Association, Denver, CO, USA, 107(12): E648-E665, (2015).", "distribution": [{"downloadURL": "https://pasteur.epa.gov/uploads/420/jaw201512lytle_es.pdf", "mediaType": "application/pdf", "title": "jaw201512lytle_es.pdf"}], "identifier": "A-nzss-420", "keyword": ["ammonia", "biological treatment", "drinking water", "nitrification"], "license": "https://pasteur.epa.gov/license/sciencehub-license.html", "modified": "2015-12-01", "programCode": ["020:000"], "publisher": {"name": "U.S. EPA Office of Research and Development (ORD)", "subOrganizationOf": {"name": "U.S. Environmental Protection Agency", "subOrganizationOf": {"name": "U.S. Government"}}}, "references": ["https://doi.org/10.5942/jawwa.2015.107.0176"], "rights": null, "title": "The Full-Scale Implementation of an Innovative (Supplemental)"}