低强度超声波强化SMBR处理中的超声波参数优化研究  

Optimization of Low-density Ultrasound Parameters for Enhanced Treatment of Submerged Membrane Biological Reactor

作　　者：丁驰[1] 梁春圃[2] 尹建新[3] 王珍珍[3] 张金娜[4] 

机构地区：[1]黑龙江省城市规划勘测设计研究院,黑龙江哈尔滨150040 [2]北京城建设计研究总院有限责任公司,北京100037 [3]山东省滨化集团股份有限公司设备动力部,山东滨州256602 [4]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《环境科学与管理》2014年第5期88-91,共4页Environmental Science and Management

基　　金：国家自然科学基金项目(51208142)

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。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.

关 键 词：低强度超声波 一体式膜生物反应器 低温 污水 

分 类 号：X703.1[环境科学与工程—环境工程]