論文

2013年

FEASIBILITY STUDY ON PHYTOREMEDIATION TECHNIQUES FOR SOIL CONTAMINATED BY THE FUKUSHIMA DAI-ICHI NUCLEAR POWER PLANT ACCIDENT

ASME 2013 15TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL REMEDIATION AND RADIOACTIVE WASTE MANAGEMENT, VOL 2
  • Yuu Ishimori
  • ,
  • Akihiro Sakoda
  • ,
  • Mina Yamada
  • ,
  • Yuko Makino
  • ,
  • Satoshi Yamada
  • ,
  • Hideyasu Fujiyama

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)
DOI
10.1115/ICEM2013-96319
出版者・発行元
AMER SOC MECHANICAL ENGINEERS

Tottori University and the Japan Atomic Energy Agency carried out jointly the feasibility study on phytoremediation techniques, which apply to soil contaminated by the TEPCO's Fukushima Dai-ichi NPP accident. This paper illustrates the results from experimental investigations. Experimental investigations include both water-culture tests and field tests.Several plants, mainly halophytes that can specifically absorb more Na than K, and others like sunflower demonstrated for other domestic large-scale tests, were water-cultured and examined for screening. Easily cultivated and harvested plants without harmful effects on subsequent cultivation were also considered. New Zealand spinach was selected as a candidate for demonstrations in fields.The field tests were carried out at two sites of different agricultural types in Minami-soma, Fukushima prefecture. Concentration of Cs-137 in soil is about 4.5 Bq/g-dry as the average of 10 cm depth. The aims of the field tests are to confirm absorption ability and environmental adaptation of the test plants and to document the cost and performance of projects. In conclusion, the absorption of Cs-137 activity per unit area (Bq/m(2)) by New Zealand spinach could be approximately 0.5%.To achieve an effective result in removal of Cs-137 from soil in around a decade, it is required to find the plant which has ten or more times higher absorption capacity than New Zealand spinach. From the consistency of both results in water-culture and field tests, the water-culture test can be valid for screening. In addition, applicable sites will be limited to fields which are too steep or too narrow to use mechanical diggers, and which are free from any restrictions to enter.

リンク情報
DOI
https://doi.org/10.1115/ICEM2013-96319
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000337805400074&DestApp=WOS_CPL
ID情報
  • DOI : 10.1115/ICEM2013-96319
  • Web of Science ID : WOS:000337805400074

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