連続フェーズで動作するジェットループ原子炉を使用して,強いアルカリ条件でのオゾン化によるフェノールの除去
Melahat Semin Barlak1, Ibrahim Cengiz2, Nejdet Degermenci3
1Department of Civil and Environmental Engineering Colorado State University Fort Collins CO 80523 USA.
Global challenges (Hoboken, NJ)
|August 27, 2025
まとめ
ジェットループ炉でのオゾン化は,高濃度でもフェノルを効果的に除去します. オゾン濃度と水力保持時間を最適化すると,フェノール,化学酸素需要 (COD),および総有機炭素 (TOC) の除去が最大化されます.
科学分野:
- 環境化学
- 化学工学
- 水処理技術
背景:
- フェノールは,効果的な除去方法を必要とする一般的な産業汚染物質です.
- オゾン化は 有機汚染物質を分解する有望な高度な酸化プロセスです
- 強いアルカリ条件はオゾン化の効率に影響を与える.
研究 の 目的:
- 強いアルカリ条件下でのジェットループ原子炉 (JLR) でオゾン化によるフェノール除去を調査する.
- 汚染物質の除去効率に対する主要な運用パラメータの影響を評価する.
主な方法:
- ジェットループ原子炉 (JLR) の継続的な稼働.
- 入口オゾンガス濃度,水力保持時間 (HRT),および影響フェノール濃度の体系的な変化.
- 排水中のフェノール,化学酸素需要 (COD),総有機炭素 (TOC) の分析
主要な成果:
- 高フェノル除去効率 (97.8%) は,入口オゾン濃度17.5gO3/m3で達成されました.
- 完全なフェノール除去は,より高いオゾン濃度 (56. 5gO3/m3) で観察されました.
- 8時間の最適水力保持時間 (HRT) は,フェノール (100%),COD (76. 8%) およびTOC (48. 2%) の最も高い除去効率をもたらしました.
- 影響するフェノール濃度の増加は,フェノール,COD,TOCの全体的な除去効率を低下させた.
結論:
- JLRでのオゾン化は,特に強いアルカリ条件下で,フェノルの除去に非常に有効です.
- オゾン濃度やHRTのような操作パラメータは,フェノール,COD,TOCの除去に大きな影響を与えます.
- JLRのオゾン化のさらなる最適化により,耐火性の有機汚染物質の除去が強化されます.
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