| 低强度超声波强化SMBR处理中的超声波参数优化研究 |
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| 引用本文： | 丁驰,梁春圃,尹建新,王珍珍,张金娜.低强度超声波强化SMBR处理中的超声波参数优化研究[J].环境科学与管理,2014(5):88-91. |
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| 作者姓名： | 丁驰 梁春圃 尹建新 王珍珍 张金娜 |
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| 作者单位： | 黑龙江省城市规划勘测设计研究院;北京城建设计研究总院有限责任公司;山东省滨化集团股份有限公司设备动力部;哈尔滨工业大学市政环境工程学院; |
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| 基金项目： | 国家自然科学基金项目(51208142) |
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| 摘 要： | 研究了利用低强度超声波强化低温一体式膜生物反应器（SMBR）污水生物处理中最优超声波参数的选择。结果表明,功率密度为0.27 W/L、辐照时间为20 min时,超声波对低温SMBR中COD去除的强化效果最佳。SMBR对NH3-N去除效果达到最佳时,超声波功率密度和辐照时间分别为0.27 W/L和15 min。综合考虑,选择更有利于低温时NH3-N去除的超声波参数：功率密度0.27 W/L、辐照时间15 min。经此超声波处理后COD、NH3-N的强化效果在24 h均能保持,故可设置超声波处理的时间间隔为24 h。
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| 关 键 词： | 低强度超声波 一体式膜生物反应器 低温 污水 |
Optimization of Low-density Ultrasound Parameters for Enhanced Treatment of Submerged Membrane Biological Reactor |
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| Institution: | Ding Chi , Liang Chunpu, Yin Jianxin, Wang Zhenzhen, Zhang Jinna(1. Heilongjiang Province Urban Planning Surveying Design and Research Institute, Harbin 150040, China; 2. Beijing Urban Engineering Design and Research Institute Co. , Ltd, Beijing 100037, China; 3. Equipment Department of Befar Group Co. Ltd. , Shandong Province, Binzhou 256602, China; 4. School of Municipal and Environmental Engineering, Harbin Institute of Technology,Harbin 150090, China) |
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| Abstract: | This study investigates on the optimization of ultrasound parameters using low-density ultrasound to enhance the low-temperature performance of submerged membrane bioreactor（SMBR） for wastewater treatment. The results demonstrate that the optimum COD removal could be obtained at the ultrasound density of 0. 27 W /L and illumination time of 20 min in SMBR.The optimized parameters for NH3-N removal were ultrasound density of 0. 27 W /L and illumination time of 15 min. The overall optimum operational conditions were selected to be ultrasound density of 0. 27 W /L and illumination time of 15 min by taking into account of both efficiency and energy conservation for enhanced removal of COD and NH3-N in SMBR system. The SMBR treated by low-density ultrasound was shown capable of enhancing removal of COD and NH3-N stably for a long period of 24 h,which was chosen as the time interval for application of low-density ultrasound. |
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| Keywords: | low-density ultrasound submerged membrane bioreactor low temperature wastewater |
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