Immobilization of Arsenic and Manganese in Contaminated Groundwater by Permeable Reactive Barriers Using Zero Valent Iron and Sheep Manure

DOI Web Site Web Site 被引用文献1件 参考文献65件
  • Wilopo Wahyu
    Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University
  • Sasaki Keiko
    Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University
  • Hirajima Tsuyoshi
    Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University
  • Yamanaka Toshiro
    Graduate School of Natural Science and Technology, Okayama University

この論文をさがす

抄録

A permeable reactive barriers (PRBs) column test was carried out to remove arsenic (As) and manganese (Mn) from groundwater using zero valent iron (ZVI), sheep manure, compost and woodchips as reactive materials. Arsenic was mainly immobilized through sorption and co-precipitation with iron-bearing minerals, and also possibly precipitation as FeAsO4. The presence of sulfate-reducing bacteria (SRB) in the inoculated column was suggested by decrease of sulfate concentrations and increase of δ34S in the effluent. Arsenic was more effective to immobilize in the inoculated than in the sterilized column due to co-precipitation with sulfides formed by reduction of sulfate in addition sorption and/or co-precipitation with carbonates. The Mn was mainly immobilized through adsorption onto compost and ZVI, and partly by precipitation as carbonates. Manganese was more effectively immobilized in the sterilized than in the inoculated column. Since compost is biodegraded, the capability of compost to immobilize Mn2+ decreased in the inoculated column. The result demonstrates that As is more effective to immobilize using mixture of sheep manure with ZVI than only ZVI as reactive materials in PRBs.

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 49 (10), 2265-2274, 2008

    公益社団法人 日本金属学会

被引用文献 (1)*注記

もっと見る

参考文献 (65)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ