ITO Kenichi

写真a

Affiliation

Center for International Relations

Title

Associate Professor

External Link

Degree 【 display / non-display

  • Doctor (Engineering) ( 2008.9   Hokkaido University )

  • Master (Aguliculture) ( 2001.3   Chiba University )

  • Bachelor (Agliculture) ( 1999.3   Chiba University )

Research Areas 【 display / non-display

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering  / 環境地盤工学

  • Environmental Science/Agriculture Science / Environmental load reduction and remediation  / Treatment of Heavy metal pollution

  • Energy Engineering / Earth resource engineering, Energy sciences

  • Environmental Science/Agriculture Science / Environmental impact assessment

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Environmental systems for civil engineering

 

Papers 【 display / non-display

  • Approach of support for the regional employment of advanced ICT foreign engineers targeting the Japanese market utilizing education before coming to Japan for and short-term study abroad -Miyazaki-Bangladesh Model- Reviewed

    Kenichi Ito, Shinnosuke Tasaka, Yuki Morishita, Takeo Uzawa

    Journal of International Student Advisors and Educators   24   65 - 79   2022.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Council of International Student Advisors of National Universities  

    There has been an issue of a mismatch between the types of businesses and occupations sought by international students and local communities when it comes to finding employment for international students in regional areas. Therefore, the University of Miyazaki, Miyazaki City office, the Japan International Cooperation Agency, and local companies collaborated to implement the "Miyazaki-Bangladesh Model" to support the employment of highly skilled foreign professionals in the ICT field through education before coming to Japan "B-JET" and short-term study abroad "JIP". For the B-JET, original Japanese language teaching materials were developed and used, and additionally, the class schedule and classroom management were similar to Japanese elementary and junior high schools with small classes in order to have the students acquire Japanese social customs. For JIP, in addition to Japanese language education, the students were given internships at companies that decide to employ them. At the same time, in order to promote cross-cultural understanding on the part of host companies that are not familiar with foreigners and to enhance their readiness to accept foreign engineers, company representatives as tutors were provided for support for students. As a result, 73% of the students who completed the B-JET, entered employment in Japanese companies, with one-third of them working for companies in Miyazaki Prefecture.

  • Mineralogical fingerprinting to characterize spatial distribution of coastal and riverine sediments in southern Japan Reviewed

    Kei Nukazawa, Tomoya Itakiyo, Kenichi Ito, Shinji Sato, Hiroyuki Oishi, Yoshihiro Suzuki

    Catena   203   105323   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Catena  

    Knowledge of the provenance and transport processes of coastal sediments is central to safeguarding against coastal erosion. However, to date coastal sediments have been poorly investigated without considering complex artificial and natural attributes such as coastal structures and watershed geology of potential source rivers. In this study, mineralogical fingerprinting technique was used to track the sources of sediments along a coastline in southwest Japan with reference to sediments of outflowing rivers. The sediment samples were collected from 65 beach sites along the Miyazaki Coast and its surrounding coastal area, and five river sites nearby. To determine the size distribution and geochemical and mineralogical compositions of the sediments, grain size, X-ray fluorescence, and X-ray diffraction (XRD) analyses were performed. Subsequently, cluster analysis was used to classify mineralogically similar groups in terms of XRD peak intensity ratio. The coastal sediment clusters corresponded well to nearby riverine clusters, suggesting that the coastal sediments were primarily transported from these river watersheds, although uncertainty as contributions of oceanic flows might be involved. The concordance ascribes to the major geological classifications in the watersheds of major rivers, as well as smaller rivers flowing in the northern area (e.g., the Shimanto Supergroup and Osuzuyama Acid Rocks). In addition to the major tendency, we also observed potential effects of manmade structures on the coastal sediment prevalence; the mineralogical similarities decreased across jetties in the Hitotsuse River mouth. The vertical mineralogical distribution of the core sediment samples observed on the left and right banks of the Hitotsuse River mouth supported the general trend of uniform cluster patterns in each core sample with horizontally different clusters across the river mouth. Mineralogical analysis targeting both coastal and riverine sediments is effective for understanding the characteristics of sediment distribution, which in turn is useful for efforts devoted to protection against coastal erosion.

    DOI: 10.1016/j.catena.2021.105323

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  • Determining adsorption parameters of potentially contaminant-releasing materials using batch tests with differing liquid-solid ratios Reviewed

    Hirofumi Sakanakura, Kenichi Ito, Jiajie Tang, Mikako Nakagawa, and Hiroyuki Ishimori

    Materials   14 ( 10 )   2534 - 2549   2021.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Materials  

    Adsorption parameters such as the distribution coefficient are required to predict the release behavior of contaminants using advection-dispersion models. However, for potentially contaminant-releasing materials (PCMs) such as dredged sludge and coal ash, these parameters cannot be obtained by conventional adsorption tests. This study developed a method to determine adsorption parameters for PCMs from a set of batch tests conducted in parallel as a function of the liquid-solid ratio (LS-parallel test). This LS-parallel test was performed on sandy soil derived from marine sediment using liquid-solid ratios from 1 to 300 L/kg. The water-contact time was also changed from 10 min to 28 d to elucidate the kinetics or equilibrium of contaminants released from the sample. Adsorption parameters were successfully obtained if the substance was under adsorption control. A column percolation test was performed to confirm the effectiveness of the obtained parameters. Good agreements were observed for SO42− and B, but discrepancies remained for other substances such as F− and as suggesting that improvements are necessary in both the LS-parallel test procedure and the advection-dispersion model.

    DOI: 10.3390/ma14102534

    Scopus

    PubMed

  • Verification of Effectiveness for Control of Percolation water by Insolubilized Soil Layer and Downspout in Embankment Reviewed

    Mamoru Kotani, Tomotaka Morishita, Toshihiko Miura, Kenichi Ito

    419 - 426   2020.12

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    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  • INSOLUBILIZATION OF HEAVY METALS IN VOLCANIC DEPOSIT WITH MAGNESIUM OXIDE INSOLUBILIZER Reviewed

    DOTE Yutaka, ITO Kenichi, SEKITO Tomoo, OBANA Seiichi, FUJII Shingo

    Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)   76 ( 7 )   III_393 - III_401   2020

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Civil Engineers  

    <p> To evaluate of the effect of MgO on insolubilizaiton of heavy metals in volcanic deposit, the raw deposit sampled from five points in Akako River in Miyazaki prefecture, Japan was treated with MgO, and leaching test, pH dependence test and sequential extraction test were performed. B and As were leached from the raw deposit and the concentrations exceeded the Environmental Quality Standards for soil. By adding MgO of 6% into the raw deposit, leaching concentrations of As, B, Cd, F and Pb satisfied the Environmental Quality Standards for soil. The results of pH dependence test indicated that MgO treatment could be highly effective at a pH of 2 for Cd and F; however, it was much less effective less than a pH of 7 for B, As, T-Cr and Pb. It was suggested that As and B could be adsorbed on MgO, Mg(OH)<sub>2</sub> and Fe(OH)<sub>3</sub> to be insolubilized.</p>

    DOI: 10.2208/jscejer.76.7_III_393

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Books 【 display / non-display

  • 放射性物質対策技術 ~除去、モニタリング、装置・システム開発~

    山田裕久,横山信吾,伊藤健一,佐藤努,万福裕造,八田珠郎( Role: Contributor ,  第1編2章第3節 ジオマテリアルを用いた放射性物質除去・回収技術)

    株式会社エヌ・ティー・エス  2015.2  ( ISBN:9784860434151

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    Language:Japanese Book type:Scholarly book

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  • 放射性物質対策技術 ~除去、モニタリング、装置・システム開発~

    伊藤 健一

    株式会社エヌ・ティー・エス  2015.2  ( ISBN:9784860434151

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    Language:Japanese

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  • 放射性物質対策技術 : 除去、モニタリング、装置・システム開発

    森田 昌敏, 三村均, 熊沢紀之, 矢野勝彦, 青野宏通, 槇田洋二, 苑田晃成, 山田裕久, 横山 信吾, 伊藤健一, 佐藤努, 万福裕造, 八田珠郎, 多賀淳, 石川彰彦, 村上秀樹, 菊池良栄, 金原 和秀

    エヌ・ティー・エス  2015  ( ISBN:9784860434151

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    Language:Japanese

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  • 放射性物質の吸着・除染および耐放射線技術における材料・施工・測定の新技術

    山田裕久, 横山信吾, 渡辺雄二郎, 中田弘太郎, 田村堅志, 佐藤努, 伊藤健一, 八田珠郎( Role: Joint author ,  第3章第3節 天然鉱物のセシウム吸着能力の比較)

    (株)技術情報協会  2014.11  ( ISBN:4861045584

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    Language:Japanese Book type:Scholarly book

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  • 放射性物質の吸着・除染および耐放射線技術における材料・施工・測定の新技術

    伊藤 健一

    (株)技術情報協会  2014.11  ( ISBN:4861045584

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    Language:Japanese

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MISC 【 display / non-display

  • 土壌汚染における分離の技術と課題 土壌分級洗浄技術の発展:分級洗浄による汚染土壌からの有害元素の分離除去・減容化 Invited

    伊藤健一

    分離技術   51 ( 1 )   2 - 12   2021.1

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • 硫黄山噴火による強酸性白濁水の対策 Invited Reviewed

    伊藤健一

    水環境学会誌   43(A) ( 7 )   236 - 240   2020.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:公益社団法人日本水環境学会  

  • Challenges for enhancing Fukushima environmental resilience (4):Development of physical and heat treatment methods on aiming at decontamination, volume reduction and reuse of contaminated soil Invited Reviewed

    Yaita Tsuyoshi, Honda Mitsunori, Shimoyama Iwao, Ito Kenichi, Manpuku Yuzo, Tsuji Takuya, Matsumura Daiju

    Journal of the Atomic Energy Society of Japan   59 ( 8 )   483 - 487   2017.8

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Publisher:Atomic Energy Society of Japan  

    DOI: 10.3327/jaesjb.59.8_483

  • 講座「放射性物質汚染廃棄物対策技術の現状」4. 放射性汚染廃棄物対策技術 -汚染土壌と減容化処理技術- Invited

    伊藤健一

    地盤工学会誌   63 ( 11/12 )   70 - 77   2015.11

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:地盤工学会  

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  • 火山灰凝集剤による濁水の凝集性能

    鈴木祥広,玄晄植,吉野内謙,伊藤健一,和田信一郎

    用水と廃水   57 ( 3 )   193 - 201   2015.10

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Presentations 【 display / non-display

  • 土壌の経時変化の予測に向けた酸化促進試験方法の検討

    伊藤健一, 小谷護留, 伊藤華奈子

    第27回地下水・土壌汚染とその防止対策に関する研究集会  (神奈川県横須賀市)  2022.6.24 

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    Event date: 2022.6.23 - 2022.6.24

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川県横須賀市  

    S4-21 土壌の経時変化の予測に向けた酸化促進試験方法の検討,
    第27回地下水・土壌汚染とその防止対策に関する研究集会講演集, P381-386.

  • 土壌の酸性化特性試験方法の開発

    小谷 護留, 森下 智貴, 三浦 俊彦, 伊藤 健一

    第64回粘土科学討論会  (長野)  2021.9.15  一般社団法人日本粘土学会

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    Event date: 2021.9.14 - 2021.9.18

    Language:Japanese  

    Venue:長野  

    第64回粘土科学討論会講演要旨集, P55-56

  • A11 土壌の酸性化特性試験方法の開発

    小谷 護留, 森下 智貴, 三浦 俊彦, 伊藤 健一

    粘土科学討論会講演要旨集  2021.9.14  一般社団法人日本粘土学会

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    Event date: 2021.9.14

    Language:Japanese   Presentation type:Oral presentation (general)  

    CiNii Research

  • 盛土内の降雨浸透・重金属等溶出過程を考慮したカラム試験

    大野 敦史, 土屋 秀二, 山口 尚宏, 大洞 輝雄, 伊藤 健一

    第56回地盤工学研究発表会  (オンライン)  公益社団法人 地盤工学会

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    Event date: 2021.7.12 - 2021.7.15

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  • Insolubilization and stability of volcanic ejecta

    Kenichi Ito, Yutaka Dote, Seiichi Obana and Shingo Fujii

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    Event date: 2021.6.24 - 2021.6.25

    Language:Japanese   Presentation type:Oral presentation (general)  

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Awards 【 display / non-display

  • 日本粘土学会 優秀講演賞

    2011.3   日本粘土学会  

    伊藤健一, 平田利治, 山田和宏, 河野勝仁, 横田漠

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 資源・素材学会 論文賞

    2010.3   一般社団法人資源・素材学会  

    伊藤健一, 福士圭介, 橋本晃一, 田中小満, 池田穂高, 佐藤努, 米田哲朗

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    Award type:Honored in official journal of a scientific society, scientific journal  Country:Japan

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  • 日本粘土学会 技術賞

    2008.9   日本粘土学会  

    株式会社ソフィア

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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