污水厂活性污泥耗氧速率的定量分析  

QUANTITATIVE ANALYSIS ON OXYGEN UPTAKE RATE OF ACTIVATED SLUDGE IN WASTEWATER TREATMENT PLANT

作　　者：张景炳 齐鲁[1] 汪俊妍 余雨 王洪臣[1] 李云辉 范海涛[1] ZHANG Jmg-blng;QI Lu;WANG Jun-yan;YU Yu;WANG Hong-chen;LI Yun-hui;FAN Hai-tao(School of Environment,Renmin University of China,Beijing 100872,China;The Zhuyuan Secondary Sewage Treatment Plant,Shanghai 200137,China)

机构地区：[1]中国人民大学环境学院,北京100872 [2]上海竹园第二污水处理厂,上海200137

出　　处：《环境工程》2018年第8期20-25,共6页Environmental Engineering

基　　金：北京市科技计划项目(Z151100001415005)

摘　　要：以上海竹园第二污水处理厂二级处理A/O工艺的曝气池为研究对象,采用活性污泥比耗氧速率在线测定仪动态测试曝气池沿程点位的耗氧速率(oxygen uptake rate,OUR),通过定量核算OUR与耗氧量,评价生物处理单元的优化潜力并提出分段调控初步构想。分析结果发现,OUR沿程逐渐下降,在60,120 m处出现明显的拐点,不同生化反应平均碳降解OUR、氨氧化OUR、亚硝酸盐氧化OUR的比例为4.4∶2.65∶1,好氧池第1廊道与好氧池第2廊道的平均耗氧量的比例为1∶0.485,东池、西池整体处理能力平均理论可提升潜力分别为28.1%、21.98%。结果表明,该生物好氧处理单元具有较大的优化潜力,OUR可作为动态指标指示基质降解阶段,分段调控的提出可为城市污水厂的定量设计与运行优化提供借鉴与参考。Taking aeration tank of the secondary treatment A/O process in the Shanghai Zhuyuan Secondary Sewage Treatment Plant as the research object, the oxygen uptake rate was tested at the point along the aeration tank using the specific oxygen uptake rate online monitoring device. Through quantitative accounting the oxygen uptake rate and oxygen consumption, the optimization potential of the biological treatment unit was valuated and the initial idea of subsection regulation was put forward. The results showed that OUR decreased gradually along the aeration tank, inflection points were obvious at 60,120 m. The proportion of average carbon degradation OUR, ammonia oxidation OUR, nitrite oxidation OUR of different biochemical reactions is 4.4： 2.65： 1. The ratio of average oxygen consumption was 1： 0. 485 at aerobic first corridor and aerobic second corridor. The average theoretical enhancing potentials of east tank and west tank overall processing capacity were 28.1% and 21.98% , respectively. The results indicated that the bio-aerobic treatment unit had a great optimization potential, OUR could be used as a dynamic indicator to indicate the condition of matrix degradation phase. The design of aeration subsection regulation could provide reference for the quantitative design and operation optimization of urban sewage treatment plant.

关 键 词：生物处理单元 耗氧速率 不同生化反应 分段调控 优化潜力 

分 类 号：X703[环境科学与工程—环境工程]