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ID 47643
本文ファイル
著者
Ozaki, Noriatsu 大学院工学研究科 広大研究者総覧
Yamauchi, Takahiro
Ohashi, Akiyoshi 大学院工学研究科 広大研究者総覧
キーワード
WWTP
PAHs
sewage
urban surface
rainfall
discharge
抄録(英)
Polycyclic aromatic hydrocarbons (PAHs) are common contaminants present in wastewater, and determination of their sources is important for their management in the environment. In this study, stormwater loading of PAHs during rainfall periods was evaluated for sewage inflow into a wastewater treatment plant for separate sewer system. To accomplish this, sewage inflow volumes, suspended solid concentrations, and PAH concentrations were measured during eight rainfall events and on two no-rainfall days at the inlet of the plant. Based on a comparison between the rainfall and no-rainfall loading quantified by the measurements, excess PAH loadings with stormwater were evaluated for the rainfall events. The relationship between rainfall intensity and stormwater loading was then used to evaluate long-term stormwater loadings of water and PAHs. Their contributions to the sewage inflow were 0.7 % and 1.0 % for one-year for water and the sum of 16 measured PAHs, respectively. Our measurements and estimates demonstrate that direct stormwater inflow is not a primary source of PAHs to the plant for this separate sewer system.
内容記述
This work was supported by Japan Society for the Promotion of Science KAKENHI Grant Numbers 19760372.
掲載誌名
Water Science & Technology
79巻
7号
開始ページ
1426
終了ページ
1436
出版年月日
2019-04-22
出版者
IWA Publishing
ISSN
0273-1223
1996-9732
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
(c) IWA Publishing 2019. This is preprint of an article submitted for consideration in 'Water Science & Technology'.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
関連情報URL
部局名
工学研究科
備考
Post-print version/PDF may be used in an institutional repository after an embargo period of 12 months.