大和川における水温を考慮したBOD負荷量の推定

• 谷口 正伸

  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

• 平田 健正

  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

書誌事項

タイトル別名

• ESTIMATION OF BOD LOADS CONSIDERING WATER TEMPERATURE IN THE YAMATO RIVER CATCHMENTS

抄録

Calculated Pollutant load per unit production and actual pollutant load of Yamato River were estimated. The actual pollutant load was determined from measured flow rates and concentrations. As a result, actual BOD load showed seasonal changes with low values of summer and high values of winter. The change depended on temperature because a rate of decomposition of organic compound depends on temperature. The actual BOD loads between two pints along the Yamato River with no branch river and no drainage were measured and a rate of decomposition between them was calculated. The calculated seasonal BOD load from pollutant load unit production method including rate of decomposition showed the same pattern of the actual BOD load. The total BOD load value by unit production including decomposition calculated method was 4 times of the actual load. As BOD was not measured at flood condition, the actual BOD did not include floating material at the condition of high flow rate and then was smaller than the calculated load per unit production.

収録刊行物

• 水工学論文集

  水工学論文集 49 1555-1560, 2005

  公益社団法人 土木学会

キーワード

• Yamato River
• water temperature
• pollutant load per unit production
• BOD
• T-N
• T-P

詳細情報

• CRID: 1390001205171012864
• NII論文ID: 130003842097
• DOI: 10.2208/prohe.49.1555
• 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