神戸大学附属図書館デジタルアーカイブ
入力補助
English
カテゴリ
学内刊行物
ランキング
アクセスランキング
ダウンロードランキング
https://hdl.handle.net/20.500.14094/90008209
このアイテムのアクセス数:
6
件
(
2024-05-06
12:43 集計
)
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
90008209 (fulltext)
pdf
1.47 MB
10
メタデータ
ファイル出力
メタデータID
90008209
アクセス権
open access
出版タイプ
Version of Record
タイトル
A three-dimensional numerical assessment on the influences of treated sewage effluent on an adjacent seaweed farm with different discharge operations
著者
Zhang, Xu ; Uchiyama, Yusuke ; Nakayama, Akihiko
著者名
Zhang, Xu
著者ID
A0968
研究者ID
1000080344315
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=321466d484cf497c520e17560c007669
著者名
Uchiyama, Yusuke
内山, 雄介
ウチヤマ, ユウスケ
所属機関名
先端融合研究環
著者名
Nakayama, Akihiko
収録物名
AIP Conference Proceedings
巻(号)
2157(2)
ページ
020031
出版者
AIP Publishing
刊行日
2019-09-18
公開日
2021-04-26
抄録
Coastal dispersal of sewage effluent from the Tarumi Sewage Treatment Plant located in Osaka Bay, Japan, was investigated with a quadruple-nested high-resolution ROMS model coupled with a 3-D passive tracer model. The study area is quite famous for seaweed farming in the nation, which has been claimed considerably affected by the effluent from the plant, particularly in fall when the seaweed spores are most vulnerable to contamination that counteracts their favorable growth and productivity. We applied the model to three different discharge scenarios to explore possible optimal operations that could reduce the influences. If the discharged volume rate is simply decreased at ∼16.7% relative to the baseline case that represents the actual operation, the effluent accumulating in the farm is reduced at ∼25.4% showing a significant nonlinearity. A tracer flux analysis demonstrated that the transient component accounting for fluctuating tides and eddies dominates over the time-averaged linear contribution to the effluent accumulation in the cross-shore effluent transport to the farm. By contrast, in the along-shore direction, the linear component leads to increased influx near the surface at the western transect of the farm, while the transient component is more essential to the overall reduction of the incoming tracer flux to the farm. On the other hand, density adjustment of the effluent for suppressing surfacing of buoyant effluent plume released from the bottom-mounted diffusers does not work well as expected, because pronounced far-field dilution takes over the near-source dilution affected by the density adjustment.
カテゴリ
先端融合研究環
学術雑誌論文
権利
© 2019 Author(s). Published by AIP Publishing.
詳細を表示
資源タイプ
journal article
言語
English (英語)
ISSN
0094-243X
OPACで所蔵を検索
CiNiiで学外所蔵を検索
eISSN
1551-7616
OPACで所蔵を検索
CiNiiで学外所蔵を検索
関連情報
DOI
https://doi.org/10.1063/1.5126566
ホームへ戻る