論文

査読有り
2014年

Behavior of trace organic contaminants in soil aquifer treatment (SAT) process for reuse of secondary sewage effluent

PROGRESS IN SLOW SAND AND ALTERNATIVE BIOFILTRATION PROCESSES: FURTHER DEVELOPMENTS AND APPLICATIONS
  • F. Nishimura
  • ,
  • N. Kurita
  • ,
  • Y. Takabe
  • ,
  • T. Mizuno
  • ,
  • T. Hidaka
  • ,
  • S. Ito

開始ページ
553
終了ページ
562
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
出版者・発行元
IWA PUBLISHING

In this study, fate of endocrine disrupting chemicals, Ethylenediaminetetraacetic acid (EDTA) and 1,4-dioxane, whose risks were concerned in the case when treated wastewater is reused for potable purpose, in soil aquifer treatment (SAT) was evaluated with various experiments. Using SAT columns and pilot scale reactors, which continuously received treated sewage effluent, it was cleared that bisphenol-A(BPA) was effectively removed; meanwhile, the removal of 1,4-dioxane by SAT was not so expected. Removal of EDTA was expected; however, the removal was limited (66% of removal ratio with 30 days of Hydraulic retention time). In order to made clear the mechanism of treatment and removal efficiencies of these trace contaminants in SAT, adsorption and biodegradation characteristics were also investigated and evaluated quantitatively from the points of reaction kinetics. It was understood that BPA, E1, and E2 can be removed easily by biological reaction, whereas EDTA and 1,4-dioxane cannot be degraded biologically in the system. On the other hand EDTA can be adsorbed to the soil. These findings corroborate the results of SAT columns experiment, and can be used for mathematical models which express and predict behaviors of the chemicals in SAT.

リンク情報
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000346972900071&DestApp=WOS_CPL
ID情報
  • Web of Science ID : WOS:000346972900071

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