| 微纳米气浮技术用于炼化污水的深度处理 |
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| 引用本文： | 张敏, 宋昭峥, 孙珊珊, 张志勇, 穆红岩, 赵立平, 李永峰, 张忠智. 微纳米气浮技术用于炼化污水的深度处理[J]. 环境工程学报, 2016, 10(2): 599-603. doi: 10.12030/j.cjee.20160214 |
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| 作者姓名： | 张敏 宋昭峥 孙珊珊 张志勇 穆红岩 赵立平 李永峰 张忠智 |
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| 作者单位： | 1.中国石油大学(北京)重质油国家重点实验室, 北京 102249; 2.中国石油大学(北京)理学院, 北京 102249 |
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| 基金项目： | 国家自然科学基金面上项目(51474223,41172333) |
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| 摘 要： | 采用作者自行设计制作的混凝-微纳米气浮装置对炼化企业污水处理厂二沉池出水进行深度处理,考察了混凝剂投加量、工作压力、回流比和水力停留时间对气浮效果的影响,结果表明,最佳工艺参数为:混凝剂FeCl3 30 mg/L,工作压力0.2 MPa,回流比为20%,水力停留时间6 min。在此实验条件下,COD去除率为39.13%,SS去除率为51.85%,气浮出水COD<60 mg/L,达到了《污水综合排放标准》(GB 8978-1996)一级B标准。
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| 关 键 词： | 微纳米气泡 微纳米气浮 炼化污水 深度处理 |
| 收稿时间： | 2015-09-25 |
Advanced treatment of refining sewage with a new micro/nano-bubble flotation technology |
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| Zhang Min, Song Zhaozheng, Sun Shanshan, Zhang Zhiyong, Mu Hongyan, Zhao Liping, Li Yongfeng, Zhang Zhongzhi. Advanced treatment of refining sewage with a new micro/nano-bubble flotation technology[J]. Chinese Journal of Environmental Engineering, 2016, 10(2): 599-603. doi: 10.12030/j.cjee.20160214 |
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| Authors: | Zhang Min Song Zhaozheng Sun Shanshan Zhang Zhiyong Mu Hongyan Zhao Liping Li Yongfeng Zhang Zhongzhi |
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| Affiliation: | 1.State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China; 2.Faculty of Sciences, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Coagulation and micro/nano-bubble flotation equipment designed and constructed by the authors was used for advanced treatment of the secondary sedimentation tank effluent of refining sewage treatment plant. The influence of flocculant dosage, working pressure, reflux ratio and hydraulic retention time on flotation performance was investigated. The results demonstrated that the optimum process conditions were as follows: FeCl3 dosage of 30 mg/L, working pressure of 0.2 MPa, reflux ratio of 20% and hydraulic retention time of 6 min. Under these conditions, the removal efficiency of COD and SS reached 39.13% and 51.85%, respectively. The COD of flotation effluent was <60 mg/L which reached the first level B criteria in Integrated Wastewater Discharge Standard (GB8978-1996). |
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| Keywords: | micro nano-bubble micro nano-bubble flotation refining sewage advanced treatment |
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