Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition

Abdul Halim, Kenji Jinno, Abdur Razzak, Keita Oda, Yoshinari Hiroshiro

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

The identification of release mechanisms of arsenic may assist in designing safe and effective remediation strategies, due to its severe toxicity effect for the human body. In this regards, investigations were carried out to observe the release of As from soil into water. It was found that As concentration increased with decreasing oxidation reduction potential. Arsenic concentrations demonstrated negative covariation with the concentrations of NO3 but strongly correlated with DOC and Fe concentrations. Batch leaching tests at different pH conditions showed a strong pH dependence on arsenic and iron leaching. A numerical simulation of arsenic transport model, coupled with microbially mediated biogeochemical processes was developed for describing the release of As in soil under reducing environment. The simulation concentrations of Mn, Fe and As were well matched those found experimentally. The results of this study suggested that the microbially mediated degradation of organic matter and reductive dissolution of Fe-oxyhydroxide are considered to be the dominant processes to release As in aquifers.

元の言語英語
ホスト出版物のタイトルAssociation for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007
ページ224-239
ページ数16
13
出版物ステータス出版済み - 2007
イベント23rd Annual International Conference on Soils Sediments and Water 2007 - Amherst, MA, 米国
継続期間: 10 15 200710 18 2007

その他

その他23rd Annual International Conference on Soils Sediments and Water 2007
米国
Amherst, MA
期間10/15/0710/18/07

Fingerprint

arsenic
Arsenic
anaerobic conditions
anoxic conditions
Soils
Leaching
modeling
soil
leaching
redox potential
remediation
Remediation
Aquifers
Biological materials
aquifers
simulation
Toxicity
Dissolution
soil organic matter
dissolution

All Science Journal Classification (ASJC) codes

  • Soil Science
  • Environmental Science (miscellaneous)
  • Pollution
  • Water Science and Technology

これを引用

Halim, A., Jinno, K., Razzak, A., Oda, K., & Hiroshiro, Y. (2007). Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition. : Association for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007 (巻 13, pp. 224-239)

Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition. / Halim, Abdul; Jinno, Kenji; Razzak, Abdur; Oda, Keita; Hiroshiro, Yoshinari.

Association for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007. 巻 13 2007. p. 224-239.

研究成果: 著書/レポートタイプへの貢献会議での発言

Halim, A, Jinno, K, Razzak, A, Oda, K & Hiroshiro, Y 2007, Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition. : Association for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007. 巻. 13, pp. 224-239, 23rd Annual International Conference on Soils Sediments and Water 2007, Amherst, MA, 米国, 10/15/07.
Halim A, Jinno K, Razzak A, Oda K, Hiroshiro Y. Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition. : Association for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007. 巻 13. 2007. p. 224-239
Halim, Abdul ; Jinno, Kenji ; Razzak, Abdur ; Oda, Keita ; Hiroshiro, Yoshinari. / Experimental and biogeochemical modeling studies on arsenic release in soil under anaerobic condition. Association for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007. 巻 13 2007. pp. 224-239
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