A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands : Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage
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- SODA Satoshi
- Graduate School of Science and Engineering, Ritsumeikan University
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- SASAKI Ryo
- Graduate School of Science and Engineering, Ritsumeikan University
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- NGUYEN Thi Thuong
- Graduate School of Science and Engineering, Ritsumeikan University
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- HAYASHI Kentaro
- Japan Oil, Gas and Metals National Corp.
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- KANAYAMA Akihiro
- Japan Oil, Gas and Metals National Corp.
書誌事項
- タイトル別名
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- A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands—Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage—
- A laboratory experiment system for developing mine drainage treatment technologies using constructed wetlands—Sequencing batch treatment of Cd-containing neutral mine drainage
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説明
<p>A lab-scale experimental system accommodating soil and plants was designed to evaluate the applicability of constructed wetlands (CWs) to mine drainage treatment. Synthetic wastewater containing Cd (0.11 mg/L) and other minerals (pH 6.8) was prepared based on the chemical composition of an actual neutral mine drainage (NMD). In lab-scale CWs consisted of a column (ID 12.5 cm, H 50 cm) filled with pumice stones and loamy soil were planted reed (Reed-CW) or cattail (Cattail-CW) plants. Some were left unplanted (Unplanted CW). The synthetic NMD (2.0 L) was treated in a 1-week cycle sequencing batch mode in the CWs in a greenhouse. The unplanted CW removed cadmium sufficiently to satisfy the effluent standard (0.03 mg/L) from the NMD, mainly by soil adsorption. Presence of the emergent plants, especially cattail, enhanced metal removal possibly by filtration with their elongated roots and metal sulfide precipitation by sulfate-reducing bacteria in the rhizosphere of the Cattail-CW.</p>
収録刊行物
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- 環境資源工学
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環境資源工学 67 (3), 111-116, 2021
一般社団法人 環境資源工学会
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詳細情報 詳細情報について
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- CRID
- 1390851165523329920
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- NII論文ID
- 130008046004
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- NII書誌ID
- AA11907992
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- ISSN
- 13499262
- 13486012
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- NDL書誌ID
- 031369748
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可