两种A^2/O工艺的活性污泥2D模型动力学参数灵敏度分析  

Sensitivity analysis of kinetic parameters of Activated Sludge Model No.2D in two kinds of A^2/O processes

作　　者：丁晓倩 赵剑强[2] 胡博[3] DING Xiaoqian;ZHAO Jianqiang;HU Bo(School of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,School of Environmental Science and Engineering,Chang’an University,Xi’an Shaanxi 710064;School of Civil Engineering,Chang’an University,Xi’an Shaanxi 710064)

机构地区：[1]西安科技大学建筑与土木工程学院,陕西西安710054 [2]长安大学环境科学与工程学院,旱区地下水与生态效应教育部重点实验室,陕西西安710064 [3]长安大学建筑工程学院,陕西西安710064

出　　处：《环境污染与防治》2018年第12期1347-1351,1358,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.51778057);西安科技大学博士(后)启动金资助项目(No.2017QDJ062).

摘　　要：使用GPS-X软件对传统A^2/O工艺和氧化沟型A^2/O工艺的污染物(COD、硝酸盐氮、氨氮和溶解性正磷酸盐)去除效果进行模拟,选用活性污泥2D模型(ASM2D)对厌氧池、缺氧池和好氧池中20个重要动力学参数进行了灵敏度分析。结果发现,在两种A^2/O工艺中,动力学参数对出水COD和硝酸盐氮浓度的灵敏度影响较小,对出水氨氮和溶解性正磷酸盐浓度的灵敏度影响很大。与聚磷菌相关的动力学参数灵敏度最高,与异养菌相关的动力学参数灵敏度最低。参数向上浮动与向下浮动对同一水质指标的影响程度不同,饱和/抑制系数类参数的灵敏度一般低于其他参数。The pollutants(COD,nitrate nitrogen,ammonia nitrogen and dissolved orthophosphate)removal performance was simulated by Activated Sludge Model No.2D(ASM2D)for the traditional A^2/O process and the oxidation ditch type A2/O process using GPS-X software.20important kinetic parameters from ASM2D in anaerobic,anoxic and aerobic tanks were selected to conduct the sensitivity analysis.Results indicated that the effluent COD and nitrate nitrogen were less sensitive to the parameters,while the effluent ammonia nitrogen and dissolved orhtophosphate were more sensitive in both two A^2/O processes.The most sensitive parameters might relate with polyphosphate accumulating bacteria,and the least sensitive parameters might relate with heterotrophic bacteria.The effect of upward and downward fluctuation of parameters on the same water quality index was different.The sensitivity of the saturation/inhibition parameters was generally lower than that of the other parameters.

关 键 词：A^2/O工艺 活性污泥2D模型 动力学参数 灵敏度 脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]