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However, the low gas\u2013liquid mass transfer (kLa) of H2 limits the commercial application of this bioconversion. This study tested and compared the gas\u2013liquid mass transfer of H2 by using two stirred tank reactors (STRs) equipped with a micro-nano sparger (MNS) and common micro sparger (CMS), respectively. MNS was found to display superiority to CMS in methane production with the maximum methane evolution rate (MER) of 171.40 mmol/LR/d and 136.10 mmol/LR/d, along with a specific biomass growth rate of 0.15 d\u22121 and 0.09 d\u22121, respectively. Energy analysis indicated that the energy-productivity ratio for MNS was higher than that for CMS. This work suggests that MNS can be used as an applicable resolution to the limited kLa of H2 and thus enhance the bioconversion of H2 and CO2 to CH4.", "subitem_description_type": "Abstract"}]}, "item_5_publisher_27": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "The Royal Society of Chemistry"}]}, "item_5_relation_11": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1039/C8RA02924E", "subitem_relation_type_select": "DOI"}}]}, "item_5_rights_12": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u00a9 The Royal Society of Chemistry 2018"}, {"subitem_rights": "Open Access Article. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence."}]}, "item_5_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_5_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2046-2069", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Liu, Ye"}], "nameIdentifiers": [{"nameIdentifier": "203359", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Wang, Ying"}], "nameIdentifiers": [{"nameIdentifier": "203360", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Wen, Xinlei"}], "nameIdentifiers": [{"nameIdentifier": "203361", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shimizu, Kazuya"}], "nameIdentifiers": [{"nameIdentifier": "203362", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Lei, Zhongfang"}], "nameIdentifiers": [{"nameIdentifier": "203363", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kobayashi, Motoyoshi"}], "nameIdentifiers": [{"nameIdentifier": "203364", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Zhang, Zhenya"}], "nameIdentifiers": [{"nameIdentifier": "203365", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sumi, Ikuhiro"}], "nameIdentifiers": [{"nameIdentifier": "203366", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yao, Yasuko"}], "nameIdentifiers": [{"nameIdentifier": "203367", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Mogi, Yasuhiro"}], "nameIdentifiers": [{"nameIdentifier": "203368", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-12-04"}], "displaytype": "detail", "download_preview_message": "", "filename": "RSC_Ad-8-47.pdf", "filesize": [{"value": "849.1 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_9", "mimetype": "application/pdf", "size": 8491000, "url": {"label": "RSC_Ad-8-47", "url": "https://tsukuba.repo.nii.ac.jp/record/48535/files/RSC_Ad-8-47.pdf"}, "version_id": "4fbdfcef-2cb4-40a8-87f1-c202af7d1384"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Enhanced bioconversion of hydrogen and carbon dioxide to methane using a micro-nano sparger system: mass balance and energy consumption", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Enhanced bioconversion of hydrogen and carbon dioxide to methane using a micro-nano sparger system: mass balance and energy consumption"}]}, "item_type_id": "5", "owner": "1", "path": ["160/2597", "160/7043", "160/1251", "160/2172", "3/62/5600/1883"], "permalink_uri": "http://hdl.handle.net/2241/00154023", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_name_i18n": "\u516c\u958b\u65e5", "attribute_value": "2018-12-04"}, "publish_date": "2018-12-04", "publish_status": "0", "recid": "48535", "relation": {}, "relation_version_is_last": true, "title": ["Enhanced bioconversion of hydrogen and carbon dioxide to methane using a micro-nano sparger system: mass balance and energy consumption"], "weko_shared_id": 5}