抄録
Anoxic conditions, occurring in enclosed water bodies from an overabundance of organic matter, cause further deterioration of the aquatic environment through nutrient elution and hydrogen sulfide production. The quantises of biochemical reactions under anaerobic states, such as denitnfication, iron reduction and sulfate reduction are important research topics when considering conservation and improvement of water quality environment. This study involved regular observations for two years in the reservoir, in which overabundant organic matter was prominent due to humic acid, to evaluate the water quality dynamic near the bottom during long-term anoxic periods. Based on the temporal changes of dissolved oxygen, nitrate-nitrogen, ammonia-nitrogen, phosphate-phosphorus, sulfide, total iron ions, and sulfate, this study focused specifically on the influence of the redox state of the sediment surface during the early stage of thermal stratification on the anaerobic biochemical reactions. As a result, nitrate-nitrogen started to decrease to zero due to denitnfication as soon as the anoxic state occurred, and then both ammonia-nitrogen and phosphate-phosphorus increased linearly with time due to iron reduction after nitrate-nitrogen had decreased to zero. Sulfide began to increase linearly due to sulfate reduction as soon as nitrate-nitrogen disappeared. Also, the initial redox state of sediment impacted on the change characteristics of phosphate-phosphorus, ammonia-nitrogen and sulfide in the points of increasing timings, duration, and rates. It was concluded that our results would provide important finding about the mechanisms of aqueous environmental deterioration due to organic pollution as well as beneficial information for the modification of water quality prediction model.
| 元の言語 | 英語 |
|---|---|
| ホスト出版物のタイトル | Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress |
| ホスト出版物のサブタイトル | Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 |
| 編集者 | Muhammad Ramdhan Olii, Karlina, Hendy Setiawan, Benazir, Johan Syafri Mahathir Ahmad, Warniyati Warniyati, Roby Hambali, Ani Hairani, Djoko Legono |
| 出版者 | Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada |
| ページ | 783-791 |
| ページ数 | 9 |
| ISBN（電子版） | 9786027176270 |
| 出版物ステータス | 出版済み - 9 1 2018 |
| イベント | 21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 - Yogyakarta, インドネシア 継続期間: 9 2 2018 → 9 5 2018 |
出版物シリーズ
| 名前 | Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 |
|---|---|
| 巻 | 2 |
会議
| 会議 | 21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 |
|---|---|
| 国 | インドネシア |
| 市 | Yogyakarta |
| 期間 | 9/2/18 → 9/5/18 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Ecology
- Environmental Engineering
これを引用
Biochemical characteristics of water quality dynamics near the bottom sediment under anaerobic state in the organically polluted reservoir. / Masayoshi, Harada; Thach, Tran Tuan; Hiramatsu, Kazuaki; Tabata, Toshinori.
Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018. 版 / Muhammad Ramdhan Olii; Karlina; Hendy Setiawan; Benazir; Johan Syafri Mahathir Ahmad; Warniyati Warniyati; Roby Hambali; Ani Hairani; Djoko Legono. Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, 2018. p. 783-791 (Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018; 巻 2).研究成果: 著書/レポートタイプへの貢献 › 会議での発言
}
TY - GEN
T1 - Biochemical characteristics of water quality dynamics near the bottom sediment under anaerobic state in the organically polluted reservoir
AU - Masayoshi, Harada
AU - Thach, Tran Tuan
AU - Hiramatsu, Kazuaki
AU - Tabata, Toshinori
PY - 2018/9/1
Y1 - 2018/9/1
N2 - Anoxic conditions, occurring in enclosed water bodies from an overabundance of organic matter, cause further deterioration of the aquatic environment through nutrient elution and hydrogen sulfide production. The quantises of biochemical reactions under anaerobic states, such as denitnfication, iron reduction and sulfate reduction are important research topics when considering conservation and improvement of water quality environment. This study involved regular observations for two years in the reservoir, in which overabundant organic matter was prominent due to humic acid, to evaluate the water quality dynamic near the bottom during long-term anoxic periods. Based on the temporal changes of dissolved oxygen, nitrate-nitrogen, ammonia-nitrogen, phosphate-phosphorus, sulfide, total iron ions, and sulfate, this study focused specifically on the influence of the redox state of the sediment surface during the early stage of thermal stratification on the anaerobic biochemical reactions. As a result, nitrate-nitrogen started to decrease to zero due to denitnfication as soon as the anoxic state occurred, and then both ammonia-nitrogen and phosphate-phosphorus increased linearly with time due to iron reduction after nitrate-nitrogen had decreased to zero. Sulfide began to increase linearly due to sulfate reduction as soon as nitrate-nitrogen disappeared. Also, the initial redox state of sediment impacted on the change characteristics of phosphate-phosphorus, ammonia-nitrogen and sulfide in the points of increasing timings, duration, and rates. It was concluded that our results would provide important finding about the mechanisms of aqueous environmental deterioration due to organic pollution as well as beneficial information for the modification of water quality prediction model.
AB - Anoxic conditions, occurring in enclosed water bodies from an overabundance of organic matter, cause further deterioration of the aquatic environment through nutrient elution and hydrogen sulfide production. The quantises of biochemical reactions under anaerobic states, such as denitnfication, iron reduction and sulfate reduction are important research topics when considering conservation and improvement of water quality environment. This study involved regular observations for two years in the reservoir, in which overabundant organic matter was prominent due to humic acid, to evaluate the water quality dynamic near the bottom during long-term anoxic periods. Based on the temporal changes of dissolved oxygen, nitrate-nitrogen, ammonia-nitrogen, phosphate-phosphorus, sulfide, total iron ions, and sulfate, this study focused specifically on the influence of the redox state of the sediment surface during the early stage of thermal stratification on the anaerobic biochemical reactions. As a result, nitrate-nitrogen started to decrease to zero due to denitnfication as soon as the anoxic state occurred, and then both ammonia-nitrogen and phosphate-phosphorus increased linearly with time due to iron reduction after nitrate-nitrogen had decreased to zero. Sulfide began to increase linearly due to sulfate reduction as soon as nitrate-nitrogen disappeared. Also, the initial redox state of sediment impacted on the change characteristics of phosphate-phosphorus, ammonia-nitrogen and sulfide in the points of increasing timings, duration, and rates. It was concluded that our results would provide important finding about the mechanisms of aqueous environmental deterioration due to organic pollution as well as beneficial information for the modification of water quality prediction model.
UR - http://www.scopus.com/inward/record.url?scp=85064014154&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064014154&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85064014154
T3 - Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018
SP - 783
EP - 791
BT - Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress
A2 - Olii, Muhammad Ramdhan
A2 - Karlina, null
A2 - Setiawan, Hendy
A2 - Benazir, null
A2 - Ahmad, Johan Syafri Mahathir
A2 - Warniyati, Warniyati
A2 - Hambali, Roby
A2 - Hairani, Ani
A2 - Legono, Djoko
PB - Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada
ER -