{"created":"2023-05-15T16:29:22.654205+00:00","id":97,"links":{},"metadata":{"_buckets":{"deposit":"1cd1bd05-630e-4333-b2f7-54ef2a8c58be"},"_deposit":{"created_by":2,"id":"97","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"97"},"status":"published"},"_oai":{"id":"oai:nagasaki-u.repo.nii.ac.jp:00000097","sets":["14:21"]},"author_link":["499","502","500","501","498"],"item_2_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-09-09","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"101147","bibliographicVolumeNumber":"20","bibliographic_titles":[{"bibliographic_title":"Environmental Technology & Innovation"}]}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The advanced oxidation process (AOP), using conventional low-pressure mercury (LP Hg)-vapor UV lamps, forms a critical barrier for pathogens and contaminants of emerging concern (CECs) in potable water reuse.\n In recent years, UV-light-emitting diode (UV-LED) has attracted considerable attention as an alternative UV source because it has a long lifetime and is mercury-free. This study assesses the effectiveness of 265-nm UV-LED in removal of characteristic CECs, 1,4-dioxane (100 μg/L) and N-nitrosamines (500 ng/L), including N-nitrosodimethylamine (NDMA), in recycled potable water. Direct photolysis using a UV-LED lamp, at the maximum UV dose of 900 mJ/cm2, achieved a maximum of 31% NDMA reduction, as opposed to a 93% reduction by a conventional LP Hg UV lamp. We attributed this to the longer emission wavelength \nof the UV-LED (265 nm) than that for the LP Hg UV lamp (254 nm). Both UV lamps failed to photolyze 1,4-dioxane. Using hydrogen peroxide or monochloramine remarkably enhanced the effectiveness of the LP Hg UV-based AOP in removing 1,4-dioxane, and the percentage of NDMA removed also increased \nslightly; however, it did not improve the effectiveness of the UV-LED-based AOP.\n We conclude from this study that despite the advantages of the UV-LED over the conventional LP Hg UV lamp, the former performs ineffectively at attenuating major CECs in recycled water.","subitem_description_type":"Abstract"}]},"item_2_description_63":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"Environmental Technology and Innovation, 20, art.no.101147; 2020","subitem_description_type":"Other"}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier B.V."}]},"item_2_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.eti.2020.101147","subitem_relation_type_select":"DOI"}}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"c 2020 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/"}]},"item_2_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"23521864","subitem_source_identifier_type":"ISSN"}]},"item_2_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Fujioka, Takahiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kodamatani, Hitoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshikawa, Takumi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Daisuke"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ikehata, Keisuke"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-09-09"}],"displaytype":"detail","filename":"ETI20_101147.pdf","filesize":[{"value":"319.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ETI20_101147.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/97/files/ETI20_101147.pdf"},"version_id":"b54e1896-4a35-47fc-8950-a951b4f24612"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"1,4-dioxane","subitem_subject_scheme":"Other"},{"subitem_subject":"Advanced oxidation process","subitem_subject_scheme":"Other"},{"subitem_subject":"CECs","subitem_subject_scheme":"Other"},{"subitem_subject":"NDMA","subitem_subject_scheme":"Other"},{"subitem_subject":"Potable reuse","subitem_subject_scheme":"Other"},{"subitem_subject":"UV-LED","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Assessment of 265-nm UV-LED for direct photolysis and advanced oxidation of N-nitrosamines and 1,4-dioxane","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Assessment of 265-nm UV-LED for direct photolysis and advanced oxidation of N-nitrosamines and 1,4-dioxane"}]},"item_type_id":"2","owner":"2","path":["21"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-12-16"},"publish_date":"2020-12-16","publish_status":"0","recid":"97","relation_version_is_last":true,"title":["Assessment of 265-nm UV-LED for direct photolysis and advanced oxidation of N-nitrosamines and 1,4-dioxane"],"weko_creator_id":"2","weko_shared_id":2},"updated":"2023-05-15T22:57:47.764843+00:00"}