变频控制DO条件下温度对中试SBR脱氮除磷的影响  

Effect of Temperature on Nutrient Removal of Pilot-scale SBR Process With DO Control by Frequency Conversion

作　　者：顾升波[1,2] 王淑莹[1,2] 杨培[1,2] 李凌云[1,2] 李论[1,2] 杨庆[1,2] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《土木建筑与环境工程》2010年第4期113-117,共5页Journal of Civil,Architectural & Environment Engineering

基　　金：国家"十一五"重大科技专项课题(2008ZX07209-003);北京市教委项目(PHR20090502;PXM2008_014204_050843);北京工业大学学生科技团队建设--指导教师资助项目(CTD-2009-08);北京工业大学博士研究生创新计划项目(bcx-2009-050)

摘　　要：在中试规模SBR（Sequencing Batch Reactor）工艺处理实际生活污水过程中，主要考察变频控制DO浓度恒定条件下温度对脱氮除磷及运行费用的影响。结果表明：温度对系统中COD和磷酸盐去除性能影响不明显，对系统中的氨氮去除影响比较显著。温度在11～26℃范围内，比氨氧化速率会随着温度的下降而降低。同时，常温条件（18～26℃）下微生物放磷和吸磷速率几乎维持恒定；低温条件下（11～18℃），放磷和吸磷速率随着温度下降大幅降低。最后，考察了不同温度条件下，SBR曝气阶段耗电量的变化规律，分析不同温度下变频控制DO浓度对SBR工艺曝气阶段耗电量的影响，为SBR污水处理厂运行提供理论依据。The effect of temperature on nutrient removal performance and operation cost with DO control by frequency conversion was investigated during the long-term operation process of treating realistic domestic wastewater with pilot-scale SBR process. It is found that the temperature has limited influence on the removal efficiency of COD and PO43--P, while has obvious impact on ammonia removal. Ammonia oxidation rate decreased sharply with the decrease of temperature when the temperature was from 11 to 26℃. Meanwhile, phosphorous uptake and release rate of microorganism almost fixed at normal level under temperature （18-26℃） and decreased sharply at temperature （11-18℃）. Finally, the variation of energy consumption at different temperature was investigated. And the effect of DO control by frequency conversion on the energy consumption of aeration phase was analyzed.

关 键 词：温度 中试SBR 脱氮除磷 节能 变频技术 

分 类 号：X703.1[环境科学与工程—环境工程]