分散気泡を利用した河川水からのフタル酸ジ‐２‐エチルヘキシル（ＤＥＨＰ）の除去

• 鈴木 祥広

  宮崎大学工学部土木環境工学科

• 安藤 康弘

  宮崎大学工学部土木環境工学科

• 丸山 俊朗

  宮崎大学工学部土木環境工学科

• 満山 宗人

  (財)宮崎県環境科学協会

• 下津 義博

  (財)宮崎県環境科学協会

• 五味 謙之

  (財)千葉県薬剤師会検査センター

• 森 広和

  (財)千葉県薬剤師会検査センター

• 国包 章一

  国立保健医療科学院水道工学部

書誌事項

タイトル別名

• Removal of di-2-ethylhexyl phthalate (DEHP) from River Water Using Dispersed Bubbles
• 分散気泡を利用した河川水からのフタル酸ジ-2-エチルヘキシル(DEHP)の除去
• ブンサン キホウ オ リヨウ シタ カセンスイ カラ ノ フタルサン ジ 2 エチルヘキシル DEHP ノ ジョキョ

抄録

In some water treatment plants, floating foam scum, which concentrates micropollutants such as di-2-ethylhexyl phthalate (DEHP), is a serious problem. We assumed the mechanism of foam scum generation to be as follows: DEHP in water adsorbs onto the gas-liquid interface of bubbles and accumulates on the water surface by floating bubbles, and then is concentrated in foam generated by surface-active matter in raw river water. To apply this mechanism, in this study, the removal of DEPH from river water by generating foam using dispersed bubbles was investigated. When river water passed through a foam generator installed in a strong aerator, foam was continuously generated on the water surface and separated as collapsed-foam water. This collapsed-foam water was yellow-brown, and contained high amounts of suspended solids and colloids. However, the amount of collapsed-foam water generated was very small, less than 1% of the total flow volume. In comparison with suspended solids and dissolved organic matters, DEHP was highly concentrated in the collapsed-foam water. The removal efficiencies of DEHP ranged from 7% to 63% using the foam generator. The use of a simple process involving only intensive aeration and foam collection resulted in a high removal efficiency for hydrophobic micropollutants, such as DEHP, which accumulated in the gas-liquid interface from raw tap water.

収録刊行物

• 水環境学会誌

  水環境学会誌 29 (1), 29-35, 2006

  公益社団法人 日本水環境学会

キーワード

• foam scum
• DEHP
• gas-liquid interface
• dispersed bubbles
• foam generator

詳細情報

• CRID: 1390001205080928768
• NII論文ID: 10017154325
• NII書誌ID: AN10372439
• DOI: 10.2965/jswe.29.29
• COI: 1:CAS:528:DC%2BD28XhtFWrtrY%3D
• ISSN: 18813690
• ISSN: 09168958
• ISSN: http://id.crossref.org/issn/09168958
• HANDLE: 10458/4560
• NDL書誌ID: 7790560
• Web Site: https://miyazaki-u.repo.nii.ac.jp/records/1086
• Web Site: http://id.ndl.go.jp/bib/7790560
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7790560
• Web Site: https://www.jstage.jst.go.jp/article/jswe/29/1/29_1_29/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可