| 微气泡臭氧化预处理实际制药废水去除SS和有机物性能 |
| 摘要点击 1550 全文点击 446 投稿时间：2021-12-18 修订日期：2022-01-15 |
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| 中文关键词 微气泡 臭氧化 实际制药废水 预处理 吸附-气浮-氧化 |
| 英文关键词 microbubble ozonation actual pharmaceutical wastewater pre-treatment absorption-floatation-oxidation |
| 作者 | 单位 | E-mail | | 刘春 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | liuchun@hebust.edu.cn | | 陈蕊 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 张静 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 杨旭 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 陈晓轩 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 郭延凯 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 武明泽 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | | | 庞勃 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术重点实验室, 石家庄 050018 | |
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| 中文摘要 |
| 采用臭氧微气泡预处理实际制药废水，并与氮气微气泡、臭氧普通气泡和氮气普通气泡处理过程比较，考察悬浮固体（SS）和有机物去除过程和性能.结果表明，臭氧微气泡存在强吸附-气浮-氧化作用，显著增强SS去除能力，60 min时SS去除率可达到81.67%，同时SS粒径减小，SS表面负电荷转变为正电荷.微气泡臭氧化具有强·OH氧化作用，显著增强有机物降解去除能力，60 min时溶解性COD （SCOD）去除率可达到36.60%，且SS去除可加速SCOD去除，UV254去除率可达到36.91%，同时可生化性改善和生物毒性消除作用明显.三维荧光和GC-MS分析表明，微气泡臭氧化可有效氧化破坏废水中复杂结构大分子有机物，显著降低废水中有机物芳香性.微气泡臭氧化可为高浓度难降解实际制药废水提供高效可行的预处理手段. |
| 英文摘要 |
| Actual pharmaceutical wastewater was pretreated with ozone microbubbles and compared with the treatment processes of nitrogen microbubbles, ozone common bubbles, and nitrogen common bubbles. The removal process and performance of suspended solids (SS) and organic compounds were investigated. The results showed that ozone microbubble treatment with strong adsorption-flotation-oxidation effects could enhance SS removal significantly, and the corresponding SS removal efficiency reached 81.67% at 60 min. The SS particle size was reduced, and the negative charge on the SS surface was simultaneously changed into a positive charge. Microbubble ozonation with a strong·OH oxidation effect also significantly enhanced the degradation and removal of organic compounds. The removal efficiency of soluble COD (SCOD) reached 36.60% at 60 min, and the SCOD removal was accelerated after the SS removal. The removal efficiency of UV254 also reached 36.91%. The biodegradability was improved, and the biological toxicity was obviously eliminated. The analysis of three-dimensional fluorescence and GC-MS showed that the macromolecular organic compounds with complex structure could be oxidized and decomposed efficiently with microbubble ozonation, resulting in the aromatic reduction in organic compounds in wastewater. Therefore, microbubble ozonation could be considered as an efficient and feasible pretreatment method for high concentration and refractory pharmaceutical wastewater. |
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