{"created":"2021-03-01T07:36:45.891766+00:00","id":55753,"links":{},"metadata":{"_buckets":{"deposit":"5eb63e29-ee16-4fd6-8366-a202f4fbbf74"},"_deposit":{"id":"55753","owners":[],"pid":{"revision_id":0,"type":"depid","value":"55753"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00055753","sets":["160:2597","3:62:5612:1381"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageStart":"1748","bibliographicVolumeNumber":"11","bibliographic_titles":[{},{"bibliographic_title":"Water","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We examined the effect of poly-γ-glutamic acid flocculant (PGAF) on the removal of ultrafine cement (UFC) particles stabilized by a poly-carboxylate co-polymer, which is a superplasticizer (SP). The flocculation–sedimentation treatment with PGAF successfully removed the SP-stabilized cement particles through the gravitational settling of the formed flocs. The removal efficiency reduced with the increase in the ionic strength, probably because of the shrunk form of poly-γ-glutamic acid (γ-PGA) at high ionic strengths. Increasing the mixing intensity during rapid mixing improved the removal efficiency. A series of flocculation–sedimentation experiments provided a diagram showing the relationship between ionic strengths and the addition amount of PGAF. Our results suggest that PGAF is a good candidate for the purification of cement suspension by flocculation–sedimentation, and a better removal performance can be obtained at lower ionic strengths with intense rapid mixing. From the diagram of the control charts presented in this study, we can determine the optimal addition amount of PGAF for achieving the target removal rate for cement suspension under any ionic strength.","subitem_description_type":"Abstract"}]},"item_5_publisher_27":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"MDPI"}]},"item_5_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.3390/w11091748","subitem_relation_type_select":"DOI"}}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)."}]},"item_5_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2073-4441","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小林, 幹佳"},{"creatorName":"コバヤシ, モトヨシ","creatorNameLang":"ja-Kana"},{"creatorName":"KOBAYASHI, Motoyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"Yanagibashi, Tomokazu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Omori, Keisuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-09-03"}],"displaytype":"detail","filename":"water_11-9.pdf","filesize":[{"value":"2.2 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"water_11-9","url":"https://tsukuba.repo.nii.ac.jp/record/55753/files/water_11-9.pdf"},"version_id":"98bb0a80-547c-4ae1-8ef2-f9a94b8e249f"}]},"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":"Application of Poly-γ-Glutamic Acid Flocculant to Flocculation–Sedimentation Treatment of Ultrafine Cement Suspension","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Application of Poly-γ-Glutamic Acid Flocculant to Flocculation–Sedimentation Treatment of Ultrafine Cement Suspension","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["2597","1381"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-09-03"},"publish_date":"2020-09-03","publish_status":"0","recid":"55753","relation_version_is_last":true,"title":["Application of Poly-γ-Glutamic Acid Flocculant to Flocculation–Sedimentation Treatment of Ultrafine Cement Suspension"],"weko_creator_id":"1","weko_shared_id":5},"updated":"2022-04-27T09:30:32.915313+00:00"}