@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/40949c69-bc0d-4551-a281-cf04be9f49dc> a dcat:Dataset ;
    dct:description """Across the United States, high levels of ammonia in drinking water\r
sources can be found. Although ammonia in water does not pose\r
a direct health concern, ammonia nitrification can cause a number\r
of issues and reduce the effectiveness of some treatment processes.\r
An innovative biological ammonia-removal drinking water\r
treatment process was developed and, after the success of a pilot\r
study, a full-scale treatment system using the process was built in\r
a small Iowa community. The treatment plant included a unique\r
aeration contactor design that is able to consistently reduce\r
ammonia from 3.3 mg of nitrogen/L to nearly nondetectable after\r
a biofilm acclimation period. Close system monitoring was\r
performed to avoid excess nitrite release during acclimation, and\r
phosphate was added to enhance biological activity on the basis\r
of pilot study findings. The treatment system is robust, reliable,\r
and relatively simple to operate. The operations and effectiveness\r
of the treatment plant were documented in the study. 

This dataset is associated with the following publication:
Lytle , 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).""" ;
    dct:identifier "A-nzss-420" ;
    dct:issued "2025-11-21T05:41:12.048565"^^xsd:dateTime ;
    dct:modified "2015-12-01"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "The Full-Scale Implementation of an Innovative (Supplemental)" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Darren Lytle" ;
            vcard:hasEmail <mailto:lytle.darren@epa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/40949c69-bc0d-4551-a281-cf04be9f49dc/resource/ea4656b6-2cb0-431b-bb37-1e733873083d> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "ammonia",
        "biological-treatment",
        "ckan",
        "drinking-water",
        "geo",
        "geoss",
        "national",
        "nitrification",
        "north-america",
        "united-states" .

<https://data.amerigeoss.org/dataset/40949c69-bc0d-4551-a281-cf04be9f49dc/resource/ea4656b6-2cb0-431b-bb37-1e733873083d> a dcat:Distribution ;
    dct:description "jaw201512lytle_es.pdf" ;
    dct:format "PDF" ;
    dct:issued "2020-11-12T13:37:48.788861"^^xsd:dateTime ;
    dct:modified "2025-11-21T05:41:12.041008"^^xsd:dateTime ;
    dct:title "jaw201512lytle_es.pdf" ;
    dcat:accessURL <https://pasteur.epa.gov/uploads/420/jaw201512lytle_es.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .