Investigación del volumen de lodo del tratamiento de aguas residuales de minas abandonadas por medio de hidróxidos de doble capa: un estudio de caso centrado en el As y el Fe

Xinyi Yang, Mir Tamzid Rahman, Tomohito Kameda, Yusei Masaki, Yuko Saito, Shogo Kumagai, Toshiaki Yoshioka

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We treated three samples of wastewater from an abandoned mine using NO3-type Mg–Al layered double hydroxides with different Mg/Al ratios (denoted LDH-2 and LDH-4) and the conventional neutralizer Ca(OH)2. We determined the optimal condition for each treatment before confirming the residual As and Fe concentrations, pH, and the amount of suspended solids (SS) in the supernatant after treatment under optimal conditions. We then estimated and compared the volume of sludge generated over 8 h in each treatment. We found that when treated under optimal conditions, both As and Fe were removed in compliance with Japan’s Uniform National Effluent Standards and that pH and SS met the standard in all cases. The final sludge volume at 8 h was 70 mL when Ca(OH)2 was used; this was twice as much when LDH-2 was used (30 mL) and four times that when LDH-4 was used (15 mL). These results strongly suggest that LDH has a high potential for treating wastewater from mines.

寄稿の翻訳タイトルInvestigation of Sludge Volume from Abandoned Mine Wastewater Treatment by Layered Double Hydroxides: A Case Study Targeting As and Fe
本文言語Spanish
ページ(範囲)881-887
ページ数7
ジャーナルMine Water and the Environment
39
4
DOI
出版ステータスPublished - 2020 12

ASJC Scopus subject areas

  • 水の科学と技術
  • 地盤工学および土木地質学

フィンガープリント

「Investigación del volumen de lodo del tratamiento de aguas residuales de minas abandonadas por medio de hidróxidos de doble capa: un estudio de caso centrado en el As y el Fe」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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