大和川での1時間毎の自動観測測定から導き出されたCODの流量依存特性

• 高野 芳隆

  和歌山大学大学院システム工学研究科

• 井伊 博行

  和歌山大学システム工学部

• 石塚 正秀

  和歌山大学システム工学部

• 平田 健正

  和歌山大学システム工学部

• 元永 秀

  国土交通省近畿地方整備局大和川河川事務所

書誌事項

タイトル別名

• CHARACTER OF COD VALUES WITH FLOW RATE CLAFIED BY ONE HOUR AUTOMATIC MEASUREMENT IN THE YAMATOGAWA RIVER

抄録

COD was previously measured from sampled water. Then 1 month measurement does not include flood condition because of safety for sampling. 1 hour measurement is automatically sampled and measured in situ at station and then includes flood condition. To clarify difference between 1 month measurement and 1 hour measurement, using both measuring results of flow rate, COD, TB and EC values of the Yamatogawa river, effect of flow rate on COD, TB and EC values was clarified. COD and TB values increased with flow rate. EC value decreased as flow rate increased. The relationships between COD and flow rate, TB and flow rate were very similar. Therefore, COD was more strongly influenced by floating material than soluble substances because TB was concentration of floating material. Using the relationships between COD and flow rate, COD loads were calculated. As a result, the COD load calculated by the 1 hour measurement was more about 2 times than the COD load calculated by the 1 month measurement.

収録刊行物

• 水工学論文集

  水工学論文集 49 1513-1518, 2005

  公益社団法人 土木学会

キーワード

• COD
• TB
• EC
• flow rate
• COD load

詳細情報

• CRID: 1390282680147722368
• NII論文ID: 130003842090
• DOI: 10.2208/prohe.49.1513
• ISSN: 18849172
• ISSN: 09167374
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可