{"created":"2023-05-15T11:51:00.720578+00:00","id":2251,"links":{},"metadata":{"_buckets":{"deposit":"913e1b60-1e19-430e-8166-e55d3cb644a6"},"_deposit":{"created_by":4,"id":"2251","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"2251"},"status":"published"},"_oai":{"id":"oai:swu.repo.nii.ac.jp:00002251","sets":["107:263:264"]},"author_link":["3647","3648"],"control_number":"2251","item_3_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1991-12-16","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"8","bibliographicPageStart":"3","bibliographicVolumeNumber":"1","bibliographic_titles":[{"bibliographic_title":"昭和女子大学大学院生活機構研究科紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Graduate School of Human Life Sciences, Showa Women's University","bibliographic_titleLang":"en"}]}]},"item_3_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"革・革製品および副廃物の処理経路全体を考えると,最終的に廃棄される段階で,クロムの処理が問題となり,何らかの方法でクロム塩を回収し,再利用せねばならない。無公害的にクロム革屑,使用済み革製品等を燃焼灰化させ回収する方法については既報(学苑 NO.620, 54～64. 1991)に明らかにした。本報では,シェービング屑より湿式酸化によりクロムを回収する方法について基礎的な検討を行った結果をとりまとめた。シェービング屑を湿式酸化する場合,硫酸を添加し酸化するとクロムの大部分は濾過しやすい沈澱状態となり,沈澱率を高めるためには反応温度230℃以上が必要であった。また,湿式酸化処理液を再利用する循環方式が好ましいことが明らかとなった。","subitem_description_type":"Other"}]},"item_3_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Leather shavings discharged as wastes from tanneries may cause the environmental pollution, owing to the high contents of chromium, regardless of whether these are incinerated or dumped into the ground. In the present study, attempts were made to decompose organic compounds in the shavings by the wet air oxidation method and to separate chromium from the oxidized liquor thus formed. There are two ways for the oxidation of chromium, one converts chromium to hexavalent ion, and the other to trivalent ion. As to the former method, the oxidation was performed by the addition of NaOH, 80% by weight based on the dry weight of the shavings, and by this treatment almost all chromium in the shavings were converted to the hexavalent state, and this hexavalent chromium would be able to separate from the oxidized liquor by means of an ion exchange resin or the like. On the other hand, as the formation of trivalent chromium, this oxidation was performed with 10 to 20 percent of H_2SO_4, based on the dry weight of the shavings, the majority of the chromium contained in the shavings were sedimented as brown sand-like precipitates with a low water content, and such precipitates are readily separable by filtration. As this filtrate still contains a considerable amount of dissolved chromium, this can not be discharged outside, but the recyclic use of the filtrate enables the treatment of shavings without any leak of dissolved chromium from the system.","subitem_description_type":"Other"}]},"item_3_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"4","subitem_description_type":"Other"}]},"item_3_description_16":{"attribute_name":"アクセション番号","attribute_value_mlt":[{"subitem_description":"KJ00004311034","subitem_description_type":"Other"}]},"item_3_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_3_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_3_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN10474552","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_19":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"09182276","subitem_source_identifier_type":"PISSN"}]},"item_3_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"大学院生活機構研究科"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岡村, 浩","creatorNameLang":"ja"},{"creatorName":"オカムラ, ヒロシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"OKAMURA, Hiroshi","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":"2017-02-16"}],"displaytype":"detail","filename":"KJ00004311034.pdf","filesize":[{"value":"343.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00004311034.pdf","url":"https://swu.repo.nii.ac.jp/record/2251/files/KJ00004311034.pdf"},"version_id":"b612e2ce-b804-4c96-8011-f0b18800dc3b"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject_language":"ja","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"シェービング屑の湿式酸化によるクロムの回収","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"シェービング屑の湿式酸化によるクロムの回収","subitem_title_language":"ja"},{"subitem_title":"RECOVERY OF CHROMIUM FROM LEATHER SHAVINGS BY WET AIR OXIDATION METHOD","subitem_title_language":"en"}]},"item_type_id":"3","owner":"4","path":["264"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-02-16"},"publish_date":"2017-02-16","publish_status":"0","recid":"2251","relation_version_is_last":true,"title":["シェービング屑の湿式酸化によるクロムの回収"],"weko_creator_id":"4","weko_shared_id":-1},"updated":"2024-04-23T04:57:53.574243+00:00"}