KONADU KOJO・TWUM コナドゥコジョ・トワム

Researcher Number	40873394
Affiliation (based on the past Project Information) *help	2020 – 2023: 九州大学, 工学研究院, 学術研究員
Review Section/Research Field	Except Principal Investigator Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
Keywords	Except Principal Investigator ラマン分光法 / バイオハイドロメタラジー / ＱＥＭＳＣＡＮ / 炭化度 / 金 / QEMSCAN / ラマン分光 / 低環境負荷抽出剤 / 炭素質物質 / 酵素反応 … More / 超難処理炭素質金鉱石 / イオン交換樹脂 / 回収損失 / チオ尿素 / シアンフリー / リグニン分解酵素 / バイオオキシデーション / グラファイト化度 / チオ尿素抽出 / シアン化抽出 / グラファイト質金鉱石 Less

Biohydrometallurgy for graphitic gold ores
- Principal Investigator
  
  Sasaki Keiko
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
- Review Section
  
  Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
- Research Institution
  Kyushu University

All 2023 2022 2021 2020 2019

All Journal Article Presentation

[Journal Article] Multiple laccase-mediator system treatments for carbonaceous matter degradation in double refractory gold ore2023
- Author(s)
  Cindy、Mendoza Diego M.、Konadu Kojo T.、Ichinose Hirofumi、Sasaki Keiko
- Journal Title
  
  Hydrometallurgy
  
  Volume: 221 Pages: 106129-106129
- DOI
  10.1016/j.hydromet.2023.106129
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23KJ1718, KAKENHI-PROJECT-19KK0135
[Journal Article] Significance of Fe contents on the surface of the gold ores in gold leaching by thiourea and ethylene thiourea2023
- Author(s)
  Sasaki Keiko、Suyama Ikumi、Aoki Yuji、Konadu Kojo T.、Cindy、Chuaicham Chitiphon、Miki Hajime、Hirajima Tsuyoshi
- Journal Title
  
  Minerals Engineering
  
  Volume: 191 Pages: 107957-107957
- DOI
  10.1016/j.mineng.2022.107957
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K18923, KAKENHI-PROJECT-19KK0135, KAKENHI-PROJECT-22H00310
[Journal Article] Improving gold recovery in carbonaceous gold ores using naphthalene sulphonate as a blanking agent2023
- Author(s)
  Owusu Clement K.、Konadu Kojo T.、Acquah Gertrude、Mends Emmanuel Atta、Amankwah Richard K.、Sasaki Keiko
- Journal Title
  
  Minerals Engineering
  
  Volume: 202 Pages: 108283-108283
- DOI
  10.1016/j.mineng.2023.108283
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Enzymatic degradation of carbonaceous matter in contrasting South African refractory gold ores using cell-free spent medium from Phanerochaete chrysosporium2023
- Author(s)
  Konadu Kojo T.、Makaula Didi X.、Smart Mariette、Cindy、Mendoza Diego M.、Opitz Elaine、Harrison Susan T.L.、Sasaki Keiko
- Journal Title
  
  Hydrometallurgy
  
  Volume: 220 Pages: 106087-106087
- DOI
  10.1016/j.hydromet.2023.106087
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23KJ1718, KAKENHI-PROJECT-19KK0135
[Journal Article] Sulfidic gold ore leaching by cysteine in the presence of Na2SO32023
- Author(s)
  Konadu Kojo T.、Sasaki Keiko
- Journal Title
  
  Hydrometallurgy
  
  Volume: 216 Pages: 106018-106018
- DOI
  10.1016/j.hydromet.2022.106018
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Laccase-mediator system for enzymatic degradation of carbonaceous matter in the sequential pretreatment of double refractory gold ore from Syama mine, Mali2022
- Author(s)
  Sakai Ryotaro、Mendoza Diego M.、Konadu Kojo T.、Cindy、Aoki Yuji、Hirajima Tsuyoshi、Ichinose Hirofumi、Sasaki Keiko
- Journal Title
  
  Hydrometallurgy
  
  Volume: 212 Pages: 105894-105894
- DOI
  10.1016/j.hydromet.2022.105894
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Significance of Acid Washing after Biooxidation of Sulfides in Sequential Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali2021
- Author(s)
  Cindy、Sakai Ryotaro、Mendoza Diego M.、Konadu Kojo T.、Sasaki Keiko
- Journal Title
  
  Minerals
  
  Volume: 11 Issue: 12 Pages: 1316-1316
- DOI
  10.3390/min11121316
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Degradation of powder activated carbon by laccase-mediator system: Model experiments for the improvement of gold recovery from carbonaceous gold ore2021
- Author(s)
  Mendoza Diego M.、Ichinose Hirofumi、Konadu Kojo T.、Sasaki Keiko
- Journal Title
  
  Journal of Environmental Chemical Engineering
  
  Volume: 9 Issue: 6 Pages: 106375-106375
- DOI
  10.1016/j.jece.2021.106375
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Carbonaceous matter degradation by fungal enzyme treatment to improve Ag recovery from an Au-Ag-bearing concentrate2021
- Author(s)
  Mendoza Diego M.、Konadu Kojo T.、Aoki Yuji、Kameya Misato、Sasaki Keiko
- Journal Title
  
  Minerals Engineering
  
  Volume: 163 Pages: 106768-106768
- DOI
  10.1016/j.mineng.2020.106768
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Biological pretreatment of carbonaceous matter in double refractory gold ores: a review and some future considerations2020
- Author(s)
  Kojo T. Konadu, Diego M. M. Flores, Robert J. Huddy, Susan T. L. Harrison, Takashi Kaneta, Keiko Sasaki
- Journal Title
  
  Hydrometallurgy
  
  Volume: 195 Pages: 105343-105343
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Effect of carbonaceous matter on bioleaching of Cu from chalcopyrite ore2020
- Author(s)
  Konadu Kojo T.、Sakai Ryotaro、Mendoza Diego M.、Chuaicham Chitiphon、Miki Hajime、Sasaki Keiko
- Journal Title
  
  Hydrometallurgy
  
  Volume: 195 Pages: 105363-105363
- DOI
  10.1016/j.hydromet.2020.105363
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19KK0135, KAKENHI-PROJECT-19K22156
[Journal Article] Biotechnological Approaches to Facilitate Gold Recovery from Double Refractory Gold Ores2020
- Author(s)
  Sasaki Keiko、T. Konadu Kojo
- Journal Title
  
  Biotechnology in Mining and Metallurgical Industry
  
  Volume: XX
- DOI
  10.5772/intechopen.94334
- ISBN
  9781839681219, 9781839681226
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19KK0135
[Journal Article] Biomineral Processing of Graphitic Refractory Gold Ores Using Enzymatic Reactions2019
- Author(s)
  笹木圭子、コジョトワムコナドゥ
- Journal Title
  
  THE MICROMERITICS
  
  Volume: 63 Issue: 0 Pages: 29-36
- DOI
  10.24611/micromeritics.2020008
- NAID
  130007761311
- ISSN
  0429-9051, 2432-2075
- Year and Date
  2019-12-15
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0135, KAKENHI-PROJECT-18K19045
[Journal Article] Transformation of the carbonaceous matter in double refractory gold ore by crude lignin peroxidase released from the white-rot fungus2019
- Author(s)
  Konadu Kojo T.、Harrison Susan T.L.、Osseo-Asare Kwadwo、Sasaki Keiko
- Journal Title
  
  International Biodeterioration & Biodegradation
  
  Volume: 143 Pages: 104735-104735
- DOI
  10.1016/j.ibiod.2019.104735
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135, KAKENHI-PROJECT-18J10835, KAKENHI-PROJECT-18K19045
[Journal Article] Sequential pretreatment of double refractory gold ore (DRGO) with a thermophilic iron oxidizing archeaon and fungal crude enzymes2019
- Author(s)
  Konadu Kojo T.、Huddy Robert J.、Harrison Susan T.L.、Osseo-Asare Kwadwo、Sasaki Keiko
- Journal Title
  
  Minerals Engineering
  
  Volume: 138 Pages: 86-94
- DOI
  10.1016/j.mineng.2019.04.043
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135, KAKENHI-PROJECT-18J10835, KAKENHI-PROJECT-18K19045
[Presentation] Enzymatic pretreatment of carbonaceous refractory gold ores prior to cyanidation2023
- Author(s)
  Keiko Sasaki, Cindy, Kojo T. Konadu
- Organizer
  Goldschmidt 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Complete gold extraction from double refractory gold ores by thiourea after bio-oxidation of sulfides using mixed culture2023
- Author(s)
  Ikumi Suyama, Kojo Twum Konadu, Yuji Aoki, Keiko Sasaki
- Organizer
  CINEST
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Impact of the carbonaceous matter composition on sequential bio-pretreatment of South African double refractory gold ore (DRGO)2022
- Author(s)
  Didi X. Makaula, Kojo T. Konadu, Mariette Smart, Elaine Opitz, Susan T. L. Harrison, Keiko Sasaki, ,
- Organizer
  International Symposium on Earth Science and Technology 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Investigating the biooxidation of sulfide matrix of two potential double refractory gold concentrates at various temperatures2022
- Author(s)
  Didi X. Makaula, Kojo T. Konadu, Mariette Smart, Elaine Opitz, Keiko Sasaki, Susan T. L. Harrison
- Organizer
  International Biohydrometallurgy Symposium (IBS) 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Beneficial laccase mediator system treatment of double refractory gold ore in sequential treatment2022
- Author(s)
  Cindy, Ryotaro Sakai, Diego M. Mendoza, Kojo T. Konadu, Keiko Sasaki,
- Organizer
  International Biohydrometallurgy Symposium (IBS) 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Sulfide gold ore leaching by cysteine in the presence of Na2SO32022
- Author(s)
  Kojo Twum Konadu, Keiko Sasaki
- Organizer
  International Biohydrometallurgy Symposium (IBS) 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Enzymatic degradation of carbonaceous matter in DRGOs from Kloof Gold Mine (VCR) and Witwatersrand goldfields (BRF), South Africa, using cell-free spent medium from Phanerochaete chrysosporium for gold recovery2022
- Author(s)
  Kojo T. Konadu, Didi X. Makaula, Mariette Smart, Elaine Opitz, Susan T. L. Harrison, Keiko Sasaki,
- Organizer
  International Biohydrometallurgy Symposium (IBS) 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Effect of the sequential (bio) treatment of double refractory gold ore on gold extraction by thiourea2022
- Author(s)
  Ikumi Suyama, Cindy, Kojo Twum Konadu, Keiko Sasaki,
- Organizer
  International Biohydrometallurgy Symposium (IBS) 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Effect of additives on gold extraction by cysteine2022
- Author(s)
  Kojo Konadu, Keiko Sasaki
- Organizer
  International Symposium on Earth Science and Technology 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Investigating the impact of temperature on the degradation of sulfide matrix during the biooxidation of potential double refractory gold concentrates2021
- Author(s)
  D.X Makaula, K Konadu, E Opitz1, M Smart1, K Sasaki, S.T.L Harrison
- Organizer
  CINEST 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Effects of common heavy metals on laccase activity and stability for enzymatic degradation of carbonaceous matter in double refractory gold ores2021
- Author(s)
  Cindy, Diego M. Mendoza, Kojo T. Konadu, Hirofumi Ichinose, Keiko Sasaki
- Organizer
  CINEST 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Improving gold recovery in carbonaceous gold ores using naphtalene sulphonate as blanking agent2021
- Author(s)
  Clement Owusu, Selorm Mensah, Konadu Kojo Twum, Grace Ofori-Sarpong, Keiko Sasaki and Richard K. Amankwah
- Organizer
  CINEST 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Sequential biotreatment of extremely refractory gold ores using laccase2021
- Author(s)
  Ryotaro Sakai, Cindy, Kojo. T Konadu, Diego M. Mendoza, Richmond Asamoah, Keiko Sasaki
- Organizer
  CINEST 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] 逐次的バイオ処理による炭素質金鉱石からの金回収率の向上2021
- Author(s)
  境　諒太郎、Cindy, Kojo Konadu, Keiko Sasaki
- Organizer
  MMIJ Fall 2021
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Using flotation to concentrate potential double refractory gold ores: A precursor study towards biooxidation of sulfide matrix and fungal decomposition of carbonaceous matter2021
- Author(s)
  D.X Makaula, K. T. Konadu, Opitz, K. Sasaki, S.T.L Harrison
- Organizer
  CINEST 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] 黄銅鉱のバイオリーチングに対する共存炭素質物質の影響2020
- Author(s)
  境　諒太郎、Kojo T. Konadu、笹木　圭子
- Organizer
  MMIJ Kyushu 2020
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Degradation of powder activated carbon by laccase mediated system: model experiment for improvement of gold recovery from carbonaceous gold ore2020
- Author(s)
  Diego M. Mendoza, Kojo T. Konadu, Hirofumi Ichinose, Keiko Sasaki
- Organizer
  CINEST 2020
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Review of the double refectory gold ore pretreatment by lignin-degrading enzymes to minimize preg-robbing2020
- Author(s)
  Kojo T. Konadu, Keiko Sasaki
- Organizer
  CINEST 2020
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Fungal enzyme treatment of carbonaceous matter for recovery of Ag from carbonaceous Au-Ag ore2020
- Author(s)
  Diego Moizes Mendoza Flores, Kojo Twum Konadu, Keiko Sasaki
- Organizer
  MMIJ Kyushu 2020
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Effect of carbonaceous matter on bioleaching of Cu from carbonaceous chalcopyrite ore2019
- Author(s)
  Kojo T. Konadu, Ryotaro Sakai, Diego M. M. Flores, Susan T. L. Harrison, Kwadwo Osseo- Asare, Keiko Sasaki
- Organizer
  International Biohydrometallurgy Symposium 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Bio-mineral processing of double refractory gold ore in sequential treatment using a thermophilic archaeon followed by fungal spent medium2019
- Author(s)
  Kojo T. Konadu, Susan T. L. Harrison, Kwadwo Osseo-Asare, Keiko Sasaki
- Organizer
  International Biohydrometallurgy Symposium 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135
[Presentation] Challenges to gold recovery from carbonaceous gold ores using biotechnology2019
- Author(s)
  Kojo Konadu, Kwadwo Osseo-Asare, Keiko Sasaki
- Organizer
  African Material Research Society 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0135

1. Sasaki Keiko (30311525)

# of Collaborated Projects: 1 results

# of Collaborated Products: 33 results
2. 三木一 (10706386)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
3. 金田隆 (20243909)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. GUO BINGLIN (60839588)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. Suyantara Gde・Pandhe・Wisnu (70932367)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

KONADU KOJO・TWUM コナドゥ コジョ・トワム

Research Projects

Research Products

Co-Researchers

Biohydrometallurgy for graphitic gold ores

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Multiple laccase-mediator system treatments for carbonaceous matter degradation in double refractory gold ore2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Significance of Fe contents on the surface of the gold ores in gold leaching by thiourea and ethylene thiourea2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Improving gold recovery in carbonaceous gold ores using naphthalene sulphonate as a blanking agent2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Enzymatic degradation of carbonaceous matter in contrasting South African refractory gold ores using cell-free spent medium from Phanerochaete chrysosporium2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Sulfidic gold ore leaching by cysteine in the presence of Na2SO32023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Laccase-mediator system for enzymatic degradation of carbonaceous matter in the sequential pretreatment of double refractory gold ore from Syama mine, Mali2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Significance of Acid Washing after Biooxidation of Sulfides in Sequential Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Degradation of powder activated carbon by laccase-mediator system: Model experiments for the improvement of gold recovery from carbonaceous gold ore2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Carbonaceous matter degradation by fungal enzyme treatment to improve Ag recovery from an Au-Ag-bearing concentrate2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Biological pretreatment of carbonaceous matter in double refractory gold ores: a review and some future considerations2020

Author(s)

Journal Title

Data Source

[Journal Article] Effect of carbonaceous matter on bioleaching of Cu from chalcopyrite ore2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Biotechnological Approaches to Facilitate Gold Recovery from Double Refractory Gold Ores2020

Author(s)

Journal Title

DOI

ISBN

Data Source

[Journal Article] Biomineral Processing of Graphitic Refractory Gold Ores Using Enzymatic Reactions2019

Author(s)

Journal Title

DOI

NAID

ISSN

Year and Date

Language

Data Source

[Journal Article] Transformation of the carbonaceous matter in double refractory gold ore by crude lignin peroxidase released from the white-rot fungus2019

KONADU KOJO・TWUM コナドゥコジョ・トワム