ABSTRACT In this study, ozonation is coupled with other approaches for the degradation of tetramethylammonium hydroxide (TMAH) to increase the degradation efficiency and reduce the toxicity. A degradation of 70.9% was reached after the reaction of TMAH with ozone for 120 min at pH 11 with the ozone dosage of 16 g O3 per gram TMAH per hour (16 g O3 g−1 TMAH h−1). A mineralization of 47.6% was achieved and the cell viability increased from 60.6% (before treatment) to 83.8% (after treatment). When ozone was combined with H2O2 and ultraviolet (UV) irradiation, the reaction stimulated by UV light did not facilitate TMAH degradation, whereas the addition of H2O2 increased the production of ·OH, thereby increasing the TMAH degradation. The use of ultrafine bubble-enhanced ozonation reduced the required ozone dosage to 1/10 of that used for microbubble ozonation, but similar treatment efficiencies were achieved. The O3/H2O2 approach is favorable for TMAH degradation; under optimal conditions, a degradation of 82.3% and mineralization of 53.5% can be achieved.

中文翻译：

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臭氧化与其他高级氧化工艺联用降解四甲基氢氧化铵

摘要 在这项研究中，臭氧与其他方法结合降解四甲基氢氧化铵 (TMAH)，以提高降解效率并降低毒性。在 TMAH 与臭氧在 pH 11 下反应 120 分钟后，降解率达到 70.9%，臭氧剂量为每小时每克 TMAH 16 g O3（16 g O3 g-1 TMAH h-1）。矿化率为 47.6%，细胞活力从 60.6%（处理前）增加到 83.8%（处理后）。当臭氧与 H2O2 和紫外线 (UV) 照射结合时，紫外光激发的反应不会促进 TMAH 的降解，而 H2O2 的加入增加了·OH 的产生，从而增加了 TMAH 的降解。超细气泡增强臭氧化的使用将所需的臭氧剂量减少到微气泡臭氧化所需的臭氧剂量的 1/10，但实现了相似的处理效率。O3/H2O2 方法有利于 TMAH 降解；在最佳条件下，可实现82.3%的降解和53.5%的矿化。