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地下水から選択された医薬品の汚染物質を,コロイド活性炭を用いて除去する
Shahd Alghamdi1, Bassam Tawabini2,3, Abdullah Abdullah4
1Geosciences Department, College of Petroleum Engineering and Geosciences,King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia.
Scientific reports
|February 12, 2026
まとめ
コロイド活性炭は,カルバマゼピン,ラモトリジン,カフェインなどの製薬汚染物質を地下水から効果的に除去します. この研究は,CAC吸附が,より清潔な飲料水のための有望なインシチュートリメディエーション技術であることを示しています.
科学分野:
- 環境科学 環境科学
- 水処理技術について
- アドソルプション科学 アドソルプション科学
背景:
- 医薬品による地下水の汚染は,世界の健康に重大なリスクをもたらす.
- 人為的な活動は,新鮮水の資源に新興の医薬品汚染物質の主要な源である.
- 効果的な修復戦略は,飲料水供給の安全を確保するために極めて重要です.
研究 の 目的:
- 汚染された地下水からカルバマゼピン (CBZ),ラモトリジン (LTG),カフェイン (CAF) を除去するためのコロイド活性炭 (CAC) の有効性を評価する.
- CACの生理化学的性質と吸収性能に対する影響について調査する.
- シミュレートされたin-situ条件下での固定床コラム実験を通じて除去効率を最適化します.
主な方法:
- 固定床柱の実験は,砂炭酸塩材料と混合したCACを用いて行われました.
- CACの物理化学的性質は,SEM/EDX,BET表面積分析,粒子のサイズ分布,ゼータポテンシャル測定を用いて特徴づけられました.
- 入水および下水における医薬品濃度は,高性能液体染色学 (HPLC) を使用して定量化されました.
主要な成果:
- CACは,高炭素含量 (95.68%) と大きな表面積 (1112.24 m2/g) を有する多孔構造を示しています.
- CBZ,LTG,CAFの最適な除去は,1 mL/minの流量,2 gのCAC用量,20 mg/Lの初期濃度,および50:50の砂-炭酸塩床で達成されました.
- ターゲット医薬品の除去効率は約40%が,最適化された条件下で観察されました.
結論:
- コロイド活性炭は,地下水から医薬品の汚染物質を除去するアドソーベンツとして大きな可能性を示しています.
- CACを用いた吸附は,地下水浄化のための実行可能で有望な技術です.
- さらなる研究は,現実世界のシナリオで医薬品の除去を強化するために,CACのアプリケーションを最適化することができます.
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