ASM2D模型的多模式AAO工艺模拟和优化
|
摘要
利用活性污泥2D模型(ASM2D)构建厌氧-缺氧-好氧(AAO)多模式工艺的模型,通过灵敏度分析,对模型的动力学参数进行校正.通过改变工艺运行模式,排泥量、内回流比和外回流比,优化多模式AAO工艺.结果表明:该污水处理厂的最优工艺运行模式为改良式AAO模式;当控制排泥量为2 000m3·d-1时,内回流比为100%,外回流比为50%,出水CODCr、氨氮和总氮质量浓度等指标均可达到GB 18918-2002《城镇污水处理厂污染物排放标准》一级B标准;经过模拟和比较,曝气能耗比原来节省28.7%,内回流能耗相比原来节省37.3%.
Activated sludge model No 2D(ASM2D)has been used to establish the model of multi-mode anaerobic-anoxic-oxic(AAO)process.The kinetic parameters of the model were calibrated through the sensitivity analysis,and the sludge discharge capacity,the interior return ratio and external reflux ratio were adjusted in order to optimize the operation of multi-AAO process.The results showed that the optimal process operation of sewage treatment plant was the Modified AAO mode.If the capacity of sludge discharge was controlled to2 000m3·d-1,the interior return ratio could be 100%,the external reflux ratio 50%,and the concentrations of the effluentρ(CODcr),ρ(NH3-N)andρ(TN)all below the threshold values set out by the Chinese legislation of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants:GB 18918-2002 Class 1B.Meanwhile,after simulations and comparisons,the aeration energy consumption decreased by28.7%,and the consumption of the internal reflux energy dropped by 37.3% compared to those of the past.
Activated sludge model No 2D(ASM2D)has been used to establish the model of multi-mode anaerobic-anoxic-oxic(AAO)process.The kinetic parameters of the model were calibrated through the sensitivity analysis,and the sludge discharge capacity,the interior return ratio and external reflux ratio were adjusted in order to optimize the operation of multi-AAO process.The results showed that the optimal process operation of sewage treatment plant was the Modified AAO mode.If the capacity of sludge discharge was controlled to2 000m3·d-1,the interior return ratio could be 100%,the external reflux ratio 50%,and the concentrations of the effluentρ(CODcr),ρ(NH3-N)andρ(TN)all below the threshold values set out by the Chinese legislation of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants:GB 18918-2002 Class 1B.Meanwhile,after simulations and comparisons,the aeration energy consumption decreased by28.7%,and the consumption of the internal reflux energy dropped by 37.3% compared to those of the past.
引文
[1]刘芳,陈秀华,顾国维.简化活性污泥数学模型在城市污水厂中的应用[J].环境工程,2005,23(2):33-36.
[2]赵胤.龙游县污水处理厂二期改扩建工程设计[J].给水排水,2015,41(3):44-48.
[3]商巧巧,董晓清,李朝林.污水处理厂运营管理评价模型及其工程应用研究[J].环境科学与管理,2015,40(4):175-178.
[4]李悦,张金松,邓仁健.基于ASM2d的MSBR工艺脱氮除磷优化运行诊断与改造[J].给水排水,2015,41(5):39-42.
[5]MARTIN C,VANROLLEGHEM P A.Analysing,completing,and generating influent data for WWTP modelling:A critical review[J].Environmental Modelling and Software,2014,60:188-201.
[6]Machado V C,LAFUENTE J,BAEZA J A.Activated sludge model 2dcalibration with full-scale WWTP data:Comparing model parameter identifiability with influent and operational uncertainty[J].Bioprocess and Biosystems Engineering,2014,37(7):1271-1287.
[7]ZHOU Zhen,SHEN Xuelian,JIANG Luman,et al.Modeling of multimode anaerobic/anoxic/aerobic wastewater treatment process at low temperature for process optimization[J].Chemical Engineering Journal,2015,281:644-650.
[8]GUERRERO J,GUISASOLA A,COMAS J,et al.Multi-criteria selection of optimum WWTP control setpoints based on microbiology-related failures,effluent quality and operating costs[J].Chemical Engineering Journal,2012,188:23-29.
[9]ZHANG Rui,XIE Wenming,YU Hanqing,et al.Optimizing municipal wastewater treatment plants using an improved multi-objective optimization method[J].Bioresource Technology,2014,157:161-165
[10]GUERRERO J,FLORES-ALSINA X,GUISASOLA A,et al.Effect of nitrite limited reactive settler and plant design configuration on the predicted performance of simultaneous C/N/P removal WWTPs[J].Bioresource Technology,2013,136:680-688.
[11]KIM H,LIM H,WIE J,et al.Optimization of modified ABA2process using linearized ASM2for saving aeration energy[J].Chemical Engineering Journal,2014,251:337-342.
[12]高扬,邵青.基于ASM2D模型对龙王嘴污水处理厂的工艺模拟[J].给水排水,2014,40(2):117-121.
[13]赵松浩,毛献忠,李钦鼎.基于对流扩散方程和ASM2D的氧化沟耦合模型研究[J].给水排水,2014,40(增刊1):425-429.
[14]陈文亮,吕锡武,姚重华,等.五箱一体化活性污泥工艺的数学模拟与校正[J].化工学报,2015,66(1):393-401.
[15]李佟,李军,朱向东,等.利用ASM2D模型模拟高碑店污水处理厂的工艺运行[J].中国给水排水,2010,26(3):39-41.
[16]王文英,黄勇,顾晓丹,等.活性污泥数学模型在污水处理中的研究进展[J].工业水处理,2014,4(7):1-4.
[17]国家环境保护总局.城镇污水处理厂污染物排放标准:GB 189180-2002[S].北京:中国环境标准出版社,2002:3-5.
[18]朱向东,郝二成,甘一萍,等.ASM2D模型在北京高碑店污水处理厂的应用[J].给水排水,2007,33(4):101-104.
[19]董姗燕,姚重华.单级活性污泥过程数学模型ASM2D参数的灵敏度分析[J].环境化学,2005,24(2):129-133.
[20]高志广.城市污水脱氮除磷过程模拟及工艺优化运行研究[D].上海:同济大学,2007:123.
[21]鄢卫东.广州市炭步镇污水处理厂多模式AAO工艺的设计与运行[J].中国给水排水,2012,28(20):52-54.
[22]杨志泉,周少奇,何伟,等.改良A2/O工艺生物脱氮除磷应用研究[J].中国给水排水,2010,26(1):79-82.
[23]姚重华,王国华,谭学军,等.两点进水在倒置AAO流程除磷中的作用[J].环境污染与防治,2010,32(12):43-47.
[24]李曈,郝瑞霞,刘峰,等.A/A/O工艺脱氮除磷运行效果分析[J].环境工程学报,2011,9(8):1729-1734.
[25]曾武,周少奇,余建恒.A2/O工艺处理混合污水脱氮中试研究[J].水处理技术,2008,34(10):53-56.
[26]HU Z,WENTZEL M C,EKAMA G A.Anoxic growth of phosphate-accumulating organisms(PAOs)in biological nutrient removal activated sludge systems[J].Water Research,2002,36(19):4927-4937.
[2]赵胤.龙游县污水处理厂二期改扩建工程设计[J].给水排水,2015,41(3):44-48.
[3]商巧巧,董晓清,李朝林.污水处理厂运营管理评价模型及其工程应用研究[J].环境科学与管理,2015,40(4):175-178.
[4]李悦,张金松,邓仁健.基于ASM2d的MSBR工艺脱氮除磷优化运行诊断与改造[J].给水排水,2015,41(5):39-42.
[5]MARTIN C,VANROLLEGHEM P A.Analysing,completing,and generating influent data for WWTP modelling:A critical review[J].Environmental Modelling and Software,2014,60:188-201.
[6]Machado V C,LAFUENTE J,BAEZA J A.Activated sludge model 2dcalibration with full-scale WWTP data:Comparing model parameter identifiability with influent and operational uncertainty[J].Bioprocess and Biosystems Engineering,2014,37(7):1271-1287.
[7]ZHOU Zhen,SHEN Xuelian,JIANG Luman,et al.Modeling of multimode anaerobic/anoxic/aerobic wastewater treatment process at low temperature for process optimization[J].Chemical Engineering Journal,2015,281:644-650.
[8]GUERRERO J,GUISASOLA A,COMAS J,et al.Multi-criteria selection of optimum WWTP control setpoints based on microbiology-related failures,effluent quality and operating costs[J].Chemical Engineering Journal,2012,188:23-29.
[9]ZHANG Rui,XIE Wenming,YU Hanqing,et al.Optimizing municipal wastewater treatment plants using an improved multi-objective optimization method[J].Bioresource Technology,2014,157:161-165
[10]GUERRERO J,FLORES-ALSINA X,GUISASOLA A,et al.Effect of nitrite limited reactive settler and plant design configuration on the predicted performance of simultaneous C/N/P removal WWTPs[J].Bioresource Technology,2013,136:680-688.
[11]KIM H,LIM H,WIE J,et al.Optimization of modified ABA2process using linearized ASM2for saving aeration energy[J].Chemical Engineering Journal,2014,251:337-342.
[12]高扬,邵青.基于ASM2D模型对龙王嘴污水处理厂的工艺模拟[J].给水排水,2014,40(2):117-121.
[13]赵松浩,毛献忠,李钦鼎.基于对流扩散方程和ASM2D的氧化沟耦合模型研究[J].给水排水,2014,40(增刊1):425-429.
[14]陈文亮,吕锡武,姚重华,等.五箱一体化活性污泥工艺的数学模拟与校正[J].化工学报,2015,66(1):393-401.
[15]李佟,李军,朱向东,等.利用ASM2D模型模拟高碑店污水处理厂的工艺运行[J].中国给水排水,2010,26(3):39-41.
[16]王文英,黄勇,顾晓丹,等.活性污泥数学模型在污水处理中的研究进展[J].工业水处理,2014,4(7):1-4.
[17]国家环境保护总局.城镇污水处理厂污染物排放标准:GB 189180-2002[S].北京:中国环境标准出版社,2002:3-5.
[18]朱向东,郝二成,甘一萍,等.ASM2D模型在北京高碑店污水处理厂的应用[J].给水排水,2007,33(4):101-104.
[19]董姗燕,姚重华.单级活性污泥过程数学模型ASM2D参数的灵敏度分析[J].环境化学,2005,24(2):129-133.
[20]高志广.城市污水脱氮除磷过程模拟及工艺优化运行研究[D].上海:同济大学,2007:123.
[21]鄢卫东.广州市炭步镇污水处理厂多模式AAO工艺的设计与运行[J].中国给水排水,2012,28(20):52-54.
[22]杨志泉,周少奇,何伟,等.改良A2/O工艺生物脱氮除磷应用研究[J].中国给水排水,2010,26(1):79-82.
[23]姚重华,王国华,谭学军,等.两点进水在倒置AAO流程除磷中的作用[J].环境污染与防治,2010,32(12):43-47.
[24]李曈,郝瑞霞,刘峰,等.A/A/O工艺脱氮除磷运行效果分析[J].环境工程学报,2011,9(8):1729-1734.
[25]曾武,周少奇,余建恒.A2/O工艺处理混合污水脱氮中试研究[J].水处理技术,2008,34(10):53-56.
[26]HU Z,WENTZEL M C,EKAMA G A.Anoxic growth of phosphate-accumulating organisms(PAOs)in biological nutrient removal activated sludge systems[J].Water Research,2002,36(19):4927-4937.