畜産排水処理施設から水環境中への窒素流出および薬剤耐性菌の伝搬とその制御

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Author: 池本, 良子ほか

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Publication date: 2017-06-23

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Note (General)：: 金沢大学理工研究域地球社会基盤学系河北潟流域の水質調査を行った結果，干拓地内の畜産関連施設および農地からの栄養塩の流出の影響が高いことが示された．一方で，有機物濃度の増加には上流域に点在するため池や調整池の富栄養化が影響していると推定された．さらに，硫黄サイクルを活用した畜産関連排水処理施設排水処理...

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Material Type: 文書・図像類
Title: 畜産排水処理施設から水環境中への窒素流出および薬剤耐性菌の伝搬とその制御
Author/Editor: 池本, 良子
Ikemoto, Ryoko
Author Heading: 池本, 良子
Ikemoto, Ryoko
Publication Date: 2017-06-23
Publication Date (W3CDTF): 2017-06-23
Alternative Title: Nitrogen loading and antibiotic resistance propagate from livestock relating facilities and these control
Periodical title: 平成28(2016)年度科学研究費補助金基盤研究(B) 研究成果報告書 = 2016 Fiscal Year Final Research Report
No. or year of volume/issue: 2014-04-01 - 2017-03-31
Volume: 2014-04-01 - 2017-03-31
Pages: 6p.-
Text Language Code: jpn
Subject Heading: 河北潟
畜産関連施設
栄養塩
溶存態有機物
薬剤耐性菌
水平伝搬
排水処理
Target Audience: 一般
Note (General): 金沢大学理工研究域地球社会基盤学系
河北潟流域の水質調査を行った結果，干拓地内の畜産関連施設および農地からの栄養塩の流出の影響が高いことが示された．一方で，有機物濃度の増加には上流域に点在するため池や調整池の富栄養化が影響していると推定された．さらに，硫黄サイクルを活用した畜産関連排水処理施設排水処理方法を提案して，実験的検討を行った結果，その適用可能性が示された．一方，同流域の薬剤耐性菌の分布と季節変動を調査した結果， STとTCに対する耐性菌は糞便汚染と関連があり，畜産関連施設排水が排出源の一部であると推定された。さらに，湖沼環境中においても，条件が整うと，薬剤耐性菌の耐性発現が誘導される可能性があることが示された。
The results of monitoring of water quality in the Lake Kahokugata basin showed that effluent of livestock facility and agricultural field influenced on the lake water quality. The increase in organic carbon was estimated to be caused by eutrophication in small reservoirs located in up-flow basin. Furthermore, a new wastewater treatment method was proposed. As the results of laboratory scale experiments, the method was useful for livestock wastewater treatment.On the other hand, distribution and variation of antibiotic resistance bacteria in the basin was examined. Resistances for ST and TC were related to fecal contamination, and livestock relating facilities were one of the source of the resistance. Furthermore, it was estimated that the resistance expression was induced in the lake environment when conditions are satisfied.
研究課題/領域番号:26281037, 研究期間(年度):2014-04-01 - 2017-03-31
DOI: 10.24517/00056634
Access Restrictions: 限定公開
Related Material: https://kaken.nii.ac.jp/search/?qm=40159223
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26281037/
https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-26281037/26281037seika/
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 金沢大学 : 金沢大学学術情報リポジトリKURA