2006年11月
雨天時における路面排水の水質特性および汚濁負荷の流出挙動に関する研究
水環境学会誌
- ,
- 巻
- 29
- 号
- 11
- 開始ページ
- 699
- 終了ページ
- 704
- 記述言語
- 日本語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2965/jswe.29.699
- 出版者・発行元
- Japan Society on Water Environment
On the basis of field surveys of stormwater runoff conducted in urban roadways, stormwater runoff processes were characterized to determine their loading effects on the receiving water body. The main results are as follows: (1) In stormwater runoff, 82-96 % of the total rainfall amount was discharged owing to hydrologic abstraction. (2) The percentages of the particulate portion were 96, 60-70 and 26 % for phosphorus, organic matter (chemical oxygen demand and total organic carbon), and nitrogen, respectively. (3) The pollution load carried by automobiles and the remaining load from previous rainfall affect stormwater runoff. (4) A cumulative flow of 2-5mm, averagely 3.5mm, was considered to be the most effective loading cutoff in the first flush runoff. (5) Total stormwater runoff could be decreased by 50 % in a year using these first flush runoff cutoffs.
- リンク情報
- ID情報
-
- DOI : 10.2965/jswe.29.699
- ISSN : 0916-8958
- CiNii Articles ID : 10019371164
- CiNii Books ID : AN10372439