{"title":"Operation and Management of Treated Wastewater in Rural Sewerage with Intermittent-Aeration Activated-Sludge Process for Use in Irrigation","authors":"T. Nakano, Yutong Li, M. Yamaoka, S. Haruta","doi":"10.2965/jswe.46.21","DOIUrl":"https://doi.org/10.2965/jswe.46.21","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79836467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Takanashi, Narumi Yamada, T. Nakajima, A. Sawai, Takayuki Kokubo, Yasushi Gotou, Misa Toda, Yuji Suzuki, Yuta Shinfuku
{"title":"Development of a System to Support the Analysis of Post-Calibration-Type Mass Spectrometric Target Screening Test Results and the Elucidation of Spilled Chemicals in a Simulated River Water Sample","authors":"H. Takanashi, Narumi Yamada, T. Nakajima, A. Sawai, Takayuki Kokubo, Yasushi Gotou, Misa Toda, Yuji Suzuki, Yuta Shinfuku","doi":"10.2965/jswe.46.85","DOIUrl":"https://doi.org/10.2965/jswe.46.85","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74835728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"化学物質流出事故対策に活用可能な河川流下予測早見表の開発－多摩川, 淀川, 日光川におけるクロロホルムを例として－","authors":"Yuriko Ishikawa, Michihiro Murata, Tomoya Kawaguchi, Kyoko Ono, Kiyotaka Tsunemi","doi":"10.2965/jswe.46.77","DOIUrl":"https://doi.org/10.2965/jswe.46.77","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87275382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plankton Metabolic Balance in the Central Part of Lake Teganuma","authors":"Shinji HASHIMOTO","doi":"10.2965/jswe.46.149","DOIUrl":"https://doi.org/10.2965/jswe.46.149","url":null,"abstract":"2018年と2021年に手賀沼中央部において総一次生産量 (GPP) と生態系呼吸量 (ER) , クロロフィルa (Chl a) および栄養塩濃度を測定した。独立栄養生物群集, 従属栄養生物群集の活性はともに夏季から秋季にかけて高い値を示し, 水温の影響を強く受けていた。純生態系生産量 (NEP = GPP − ER) は調査期間を通してNEP > 0であり, GPP/ERの平均値は4.0であった。また, GPPの平均値 (9.4 mgO2 L-1 d-1) は閾値GPP (GPP = ERの時のGPP：1.6 mgO2 L-1 d-1) よりも6倍近く高い値であった。このことから調査期間中の手賀沼中央部は独立栄養状態であった。GPPとNEPの変動はChl a濃度の変動と密接に関係しており, GPPとNEPの変動の約40%をChl a濃度で説明することが出来た。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135355632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"霞ヶ浦における夏季の湖岸水温","authors":"Fumiya SUGINO, Takashi KOMURO, Masumi YAMAMURO","doi":"10.2965/jswe.46.157","DOIUrl":"https://doi.org/10.2965/jswe.46.157","url":null,"abstract":"湖沼の湖岸水温は公共機関による水質調査や学術研究などの報告がほとんどない。そこで本研究では, 湖岸水温に関する知見を得るため霞ヶ浦の湖岸17地点に水温ロガーを設置し, 2022年7月～9月にかけて水温モニタリングを行った。湖岸は湖心より昼間に水温が高く, 深夜は水温が低い傾向にあり, 観測期間中の湖岸水温は最高で37.4 ℃にも達していた。また湖岸水温に影響を与える環境条件として消波堤と流入河川の有無を検討した結果, 消波堤がある湖岸では消波堤がない湖岸に比べ昼間は水温が高くなり, 流入河川の存在は付近の湖岸水温に影響を与えることがわかった。本研究の結果, 夏季の霞ヶ浦の湖岸では異常な高水温環境が形成されていることがわかり, 霞ヶ浦におけるワカサギやイシガイの減少を引き起こしている可能性が考えられた。地球温暖化に伴い湖岸水温はさらに上昇すると予想されるため, 湖岸生態系保全のため湖岸水温の継続的な観測が必要である。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135561380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spatial–temporal Distributions of Dissolved Inorganic Nutrients in the Seto Inland Sea","authors":"Wataru NISHIJIMA, Akira UMEHARA","doi":"10.2965/jswe.46.163","DOIUrl":"https://doi.org/10.2965/jswe.46.163","url":null,"abstract":"1980年代以降の瀬戸内海における溶存無機窒素 (DIN) とリン (DIP) 濃度の時空間分布と植物プランクトンの制限栄養塩の変化について, クラスタリングした海域に対して解析した。DIN濃度は全海域で低下した一方で, DIP濃度は陸域影響の強い海域および外洋影響が強い海域との遷移海域で低下したが, これらの海域は瀬戸内海全面積の約2割である。一方で, 全体の8割を占める外洋影響の強い海域では有意な低下は観察されなかった。陸域影響の強い海域でのDIN濃度の低下率は過去40年間の窒素負荷削減率よりも大きく, DIP濃度の低下率は負荷削減率と同等であった。DIN濃度の低下は外洋影響の強い海域でも見られ, 低下率は3割から4割程度に達していた。陸域影響の強い海域はリン制限であり, 外洋影響の強い海域は窒素制限の面積割合が高かった。DIN濃度が全海域で低下したことに伴い, 外洋影響の強い海域では, 秋季から冬季に窒素制限海域の面積比が大きくなった。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135561387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Kishimoto, Seiko Furuta, N. Fujiwara, E. Inoue, Daiya Bamba, N. Takei
{"title":"Estimation of Filtration Rate and Habitable Condition of a Freshwater Bivalve (Corbicula sp.) in Lake Biwa","authors":"N. Kishimoto, Seiko Furuta, N. Fujiwara, E. Inoue, Daiya Bamba, N. Takei","doi":"10.2965/jswe.46.69","DOIUrl":"https://doi.org/10.2965/jswe.46.69","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78267032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Remote Monitoring of a Small Water Supply Facility via Simple Radio Modules Based on Low-Power Wide-Area (LPWA) Network Technologies","authors":"Shinya Watanabe, K. Oguma","doi":"10.2965/jswe.46.11","DOIUrl":"https://doi.org/10.2965/jswe.46.11","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89864517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Toyokazu Koga, Manabu Kashiwabara, Shusaku Hirakawa, Yuko Ishibashi, T. Miyawaki
{"title":"Development of Method Determining Tetramethylammonium Hydroxide and Tetramethylammonium Salts in Industrial Wastewater by LC-MS/MS","authors":"Toyokazu Koga, Manabu Kashiwabara, Shusaku Hirakawa, Yuko Ishibashi, T. Miyawaki","doi":"10.2965/jswe.45.115","DOIUrl":"https://doi.org/10.2965/jswe.45.115","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77723881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：