| 分体式流化床催化臭氧–絮凝工艺深度处理焦化废水生化尾水 |
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| 引用本文： | 初永宝,陈德林,刘生,徐毅,赵华章. 分体式流化床催化臭氧–絮凝工艺深度处理焦化废水生化尾水[J]. 北京大学学报(自然科学版), 2022, 58(1): 177-185. DOI: 10.13209/j.0479-8023.2021.095 |
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| 作者姓名： | 初永宝 陈德林 刘生 徐毅 赵华章 |
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| 作者单位： | 1. 青岛科技大学环境与安全工程学院, 青岛 2660422. 北京大学环境科学与工程学院, 北京 1008713. 北京市新型污水深度处理工程技术研究中心, 北京 100871 |
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| 基金项目： | 国家杰出青年科学基金(21925801)资助； |
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| 摘 要： | 采用催化臭氧-絮凝联用工艺处理焦化废水生化尾水,寻求最优处理效果,探究废水中溶解性有机污染物的特征和降解过程.通过自主设计的分体式流化床催化臭氧装置对废水进行处理,结果表明,在30％体积比的催化剂投加量、3 L/min的臭氧流量以及700 mg/L的絮凝剂投加量这一最佳反应条件下,焦化废水生化尾水的COD去除率为83....
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| 关 键 词： | 焦化废水 催化臭氧化 絮凝 流化床 三维荧光光谱 |
| 收稿时间： | 2021-02-22 |
Split Fluidized Bed Catalytic Ozone-Flocculation Process for AdvancedTreatment of Biochemical Tail Water from Coking Wastewater |
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| CHU Yongbao,CHEN Delin,LIU Sheng,XU Yi,ZHAO Huazhang. Split Fluidized Bed Catalytic Ozone-Flocculation Process for AdvancedTreatment of Biochemical Tail Water from Coking Wastewater[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022, 58(1): 177-185. DOI: 10.13209/j.0479-8023.2021.095 |
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| Authors: | CHU Yongbao CHEN Delin LIU Sheng XU Yi ZHAO Huazhang |
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| Affiliation: | 1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 2660422. College of Environmental Sciences and Engineering, Peking University, Beijing 1008713. Beijing Engineering Research Center for Advanced Wastewater Treatment, Beijing 100871 |
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| Abstract: | The catalytic ozonation-flocculation combined process was applied for the treatment of the biochemical tail water of coking wastewater. The optimal treatment performance was investigated and the characteristic and degradation process of dissolved organic pollutants in wastewater was studied. A self-designed split type fluidized bed catalytic ozonation reactor was adopted for the experiment. The results showed that under the optimal reaction conditions (30% catalyst dosage ratio, 3 L/min ozone flow rate, and 700 mg/L flocculant dosage), the COD removal rate of coking wastewater biochemical tail water was 83.7%, and the TOC removal rate was 72.3%. Through the analysis of ultraviolet-visible spectrum and three-dimensional fluorescence spectrum, the smell aromatic compounds, humic acid, soluble microbial metabolites, and fulvic acid material, generally presented in coking wastewater biochemical tail water, was partially degraded during the stage of catalytic ozonation, which was eventually removed in the flocculation stage. The intermediate was also degraded in the flocculation stage. |
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| Keywords: | coking wastewater catalytic ozonation flocculation fluidized bed three-dimensional fluorescence spectrum
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