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| 复合氧化沟在联合曝气下氧传递研究 | |
| 引用本文： | 张妙月,王涛,王峰青,扈庆,朱俊,李科.复合氧化沟在联合曝气下氧传递研究[J].水处理技术,2012,38(5):19-23. |
| 作者姓名： | 张妙月 王涛 王峰青 扈庆 朱俊 李科 |
| 作者单位： | 1. 重庆大学城市建设与环境工程学院,400045;重庆大学三峡库区生态环境教育部重点实验室,400045 2. 重庆水务集团股份有限公司,400015 3. 重庆三峡水务有限责任公司,400020 4. 重庆三峡水务长寿排水有限责任公司, 401220 重庆 |
| 基金项目： | 国家“水体污染控制与治理”科技重大专项 |
| 摘 要： | 为改善污水处理厂Carrousel氧化沟运行情况,从一种新的角度———氧的传递出发,建立氧的传递反应模型,通过清水充氧试验及正交试验,研究了在改良型Carrousel氧化沟小试装置中,投加悬浮生物填料及改变曝气方式后系统氧的传递效果。结果表明,填料投配率为30%时,系统的氧的传递系数KL,α最大;且将系统原倒伞曝气改为倒伞+微孔的联合曝气方式后,氧的传递效果大大增加。最终确定系统优化工况为:填料投配率30%,HRT=10 h,污泥龄为25 d,采用联合曝气(倒伞转速为58.5 r/min,微孔曝气体积流量为80 L/h),夜间间歇曝气。 |
| 关 键 词： | 复合氧化沟 氧的传递 清水充氧 传质模型 悬浮生物填料 |
RESEARCH ON OXYGEN TRANSFER AT A COMBINED AERATION SYSTEM IN A HYBRID OXIDATION DITCH |
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| Zhang Miaoyue , Wang Tao , Wang Fengqing , Hu Qing , Zhu Jun , Li Ke.RESEARCH ON OXYGEN TRANSFER AT A COMBINED AERATION SYSTEM IN A HYBRID OXIDATION DITCH[J].Technology of Water Treatment,2012,38(5):19-23. | |
| Authors: | Zhang Miaoyue Wang Tao Wang Fengqing Hu Qing Zhu Jun Li Ke |
| Affiliation: | 1.College of Unban Construction and Environmental Engineering in Chongqing University,400045; 2.Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment Ministry of Education in Chongqing University,400045; 3.Chongqing Water Group Co.Ltd,400015;4.Chongqing Three Gorges Water Group Co.Ltd,400020; 5.Chongqing Three Gorges Water Group in Chang Shou Region Co.Ltd,400020: Chongqing,China) |
| Abstract: | To improve the Carrousel oxidation ditch operation,this article from a new angle-oxygen transfer-reaction establishes a mathematic model of oxygen transfer-reaction.Through oxygenated clean water experiment and orthogonal experiment,it researches on oxygen transfer after adding suspended biological stuffing and changing aeration system in Carrousel oxidation ditch.The results show that,on the one hand,when the volume radio of suspended biological stuffing is at 30%,the system of oxygen transfer coefficient is at peak;on the other hand,when the original system with down-umbrella aeration machine is improved to umbrella aeration machine combined with microporous aeration,the oxygen transfer effect increases greatly.And the optimal condition for system is that volume radio of suspended biological stuffing is 30%,HRT=10 h,SRT=25 d,use joint aeration(revolving speed of down-umbrella aeration is 58.5 r/min,microporous oxygen is 80 L/h),and use intermittent aeration at night. |
| Keywords: | hybrid oxidation ditch process oxygen transfer oxygenated clean water mass transfer model suspended biological stuffing |
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