| 旋转填充床中臭氧氧化处理兰炭废水生化出水 |
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| 引用本文： | 常佳伟,樊金梦,王伟,赵磊,邵磊. 旋转填充床中臭氧氧化处理兰炭废水生化出水[J]. 化工环保, 2012, 40(2): 131-136. DOI: 10.3969/j.issn.1006-1878.2020.02.004 |
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| 作者姓名： | 常佳伟 樊金梦 王伟 赵磊 邵磊 |
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| 作者单位： | 1. 北京化工大学 有机无机复合材料国家重点实验室,北京 100029;2. 北京化工大学 教育部超重力工程研究中心,北京 100029;3. 北京万邦达环保技术股份有限公司,北京 100875 |
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| 基金项目： | 国家自然科学基金项目（21676008） |
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| 摘 要： | 以旋转填充床（RPB）为反应器,采用臭氧氧化工艺处理实际兰炭废水一级生化池出水。考察了臭氧浓度、RPB转速、气液比、初始废水pH、废水温度和RPB处理级数对废水处理效果和臭氧利用率的影响。实验得到的适宜工艺条件为：保持进气流量90 L/h不变,不调节废水pH和温度,控制臭氧质量浓度50 mg/L、气液比5∶1、RPB转速1 500 r/min,进行二级处理。在上述工艺条件下,处理COD为340.0 mg/L、BOD5/COD为0.18、pH为7.77、温度为24.7 ℃的废水,处理后出水COD去除率为19.7%,BOD5/COD为0.34,可生化性大幅提高,可满足后续生化处理要求。
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| 关 键 词： | 兰炭废水 旋转填充床 臭氧 COD BOD5/COD |
| 收稿时间： | 2019-07-24 |
Advanced treatment of semi-coking wastewater by ozonation in rotating packed bed |
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| CHANG Jiawei,FAN Jinmeng,WANG Wei,ZHAO Lei,SHAO Lei. Advanced treatment of semi-coking wastewater by ozonation in rotating packed bed[J]. Environmental Protection of Chemical Industry, 2012, 40(2): 131-136. DOI: 10.3969/j.issn.1006-1878.2020.02.004 |
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| Authors: | CHANG Jiawei FAN Jinmeng WANG Wei ZHAO Lei SHAO Lei |
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| Affiliation: | 1. State Key Laboratory of Organic-Inorganic Composites,Beijing University of Chemical Technology,Beijing 100029,China;2. Research Center of Ministry of Education for High Gravity Engineering and Technology,Beijing University of Chemical Technology,Beijing 100029,China;3. Beijing Water Business Doctor Co. Ltd.,Beijing 100875,China |
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| Abstract: | The effluent of the primary biochemical pool of actual semi-coking wastewater was treated by ozonation process in a rotating packed bed （RPB） reactor. The effects of ozone concentration,RPB rotation speed,gas-liquid ratio,initial wastewater pH,wastewater temperature and treatment stage of RPB on wastewater treatment and ozone utilization efficiency were investigated. The suitable processing conditions for secondary treatment were determined as follows：controlling the ozone mass concentration of 50 mg/L,the gas-liquid ratio of 5∶1 and RPB rotation speed of 1 500 r/min,while maintaining the gas flow rate at 90 L/h and not adjusting wastewater pH and temperature. After the wastewater with COD of 340.0 mg/L,BOD5/COD of 0.18,pH of 7.77 and temperature of 24.7 ℃ was treated under the above conditions,the COD removal rate reached 19.7% and BOD5/COD increased to 0.34,indicating that the biodegradability of the wastewater was improved significantly and can meet the requirement of subsequent biochemical treatment. |
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| Keywords: | semi-coking wastewater rotating packed bed ozone COD BOD5/COD |
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