活性污泥法脱氮除磷工艺的优化设计研究
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摘要
活性污泥数学模型作为一种强有力的工具已经被国外在污水处理厂的管理和改造、新建污水厂设计方案的模拟和优化等领域广泛应用,而我国在实际工艺设计中常是依据经验来设计,设计中往往存在参数数据有限或是污水处理厂实际数据无法得到,从而使得工艺的设计带有一定的盲目性,很难进行工艺的最优化选择,本课题的目的是利用活性污泥数学模型对城市污水厂脱氮除磷工艺进行优化设计,使设计结果在满足出水要求的前提下,进一步降低基建费用和运行费用,用理论指导实践,提高城市污水处理厂运行效率。
     首先,利用ASM2D模型为平台,在WEST软件环境下构建A2O污水处理工艺的仿真模型,并在参数灵敏度分析的基础上对模型进行校正,使其可以应用于实际污水厂模拟,然后利用校正模型对混合液回流比、DO和污泥龄三个工艺运行参数进行优化研究,研究结果认为,上述三个运行参数在设计参数值基础上仍然具有一定的优化空间。
     其次,对活性污泥工艺三种设计方法——传统设计方法、试算法和优化法进行了论述,并对污水处理系统优化设计模型进行了重点阐述,分别从模型主体、目标函数和约束条件三个部分对优化模型进行了构建、并利用优化模型中的总费用函数对三种设计结果进行评价,结果表明,A、B污水处理厂采用优化法相对于传统设计方法分别要节省1971.94万元和2095.72,费用节省比率达到11.83%和22.83%;优化设计方法相对于试算法要节省911.11万元和1292.96万元,费用节省比率达到5.84%和15.43%。
     最后,对优化模型中的各种参数进行了灵敏度分析,了解它们的取值对优化设计结果的影响,分析结果表明,不同种类的参数的灵敏度差别很大,其中目标函数中参数对结果影响最大,最大灵敏度达到-99.02%,其次是进水组分,最大灵敏度达到16.06%,不同设计标准对系统总费用有着重要的影响,随着排放标准的下降,系统的总费用也随之减少,减少的额度分别达到917.46万元和625.91万元。
Activated sludge mathematical model has been widely utilized as a powerful tool in the management and rebuilt of wastewater treatment plants and simulation and optimization for design programmes of newly built wastewater treatment plant overseas. However, in China the actual design process is often based on experience data, and there always are problems that design parameter data are limited or actual data of wastewater treatment plants are not available, as a result the design process are carried out under a certain blindness and are difficult to optimize. The purpose of this paper was utilizing activated sludge mathematical model to optimize design of nitrogen and phosphorus removal in urban sewage plant. Under the premise of meeting the requirements to standards of the effluent, the design results would reduce the costs of infrastructure and operating, apply theory to guide practice, enhance the efficiency of urban sewage treatment plant.
     At first, utilizing study platform ASM2D to constitute A2O sewage treatment process simulation mode and calibrate it at the base of parameter sensitivity analysis, then three operation parameters—return ratio of supernatant fluid, DO and SRT—are researched with calibrated model, as a result these parameters may be adjusted in relation to design data.
     Secondly, this article gave a detailed demonstration of how to constitute a sewage treatment system optimum design model made of target function,mainbody and restriction conditions ,and three design method—the tradtional activied sludge process design method, the test method and the optimization algorithms methods—were evaluated by use of targe function of optimum model, The results showed that, A, B sewage treatment plant designed with optimization method save 19.7194 million yuan for traditional design methods respectively, and 2095.72, cost savings rate of 11.83% and 22.83%, optimization of the design method for the test algorithm to save 9111100 yuan and 1292.96 million, cost savings rate of 5.84% and 15.43%.
     Finally, analysing the sensitivity of the parameters in optimum model and acquiring its influence to results of optimum design as a result that the the sensitivity of different types of parameters varies greatly: the parameters of the objective function have the greatest impact on design results, the greatest sensitivity to -99.02 per cent, followed by influent components, to achieve maximum sensitivity of 16.06%, different design standards for the total cost of the system have an important impact, with the decline in emission standards, the total cost also will be reduced by the amount of 9.1746 million yuan, respectively, and 6.2591 million yuan.
引文
[1]徐旭忠,王一娟.设计失当等是主因三峡库区治污设备多半赋闲[DB/OL].http://business.sohu.com/20041219/n223547374.shtml,2004-12-19.
    [2]Ekama G A,Dold P L,Marais G v R.Procedures for determining influent COD fraction and the maximum specific growth rate of heterotrophs in activated sludge system[J].Wat Sci Tech,1986,18(6):91-114.
    [3]Spanjers H,Olsson G,Klapwijk A.Determining influent short-term biochemical oxygen demand and respiration rate in an aeration tank by using respirometry and estimation[J].Wat Res,1994,28:1571-1583.
    [4]Lukasse L J S,Keesman K J,van Straten G.Estimation of BODst,respiration rate and kinetics of activated sludge[J].Wat Res,1997,31:2278-2286.
    [5]Wentzel M C,Mbewe A,Ekama G A.Batch test for measurement of readily biodegradable COD and active organism concentration in municipal wastewater[J].Wate SA,1995,21(2):117-124.
    [6]Veldhuizen H.M.V.,van Loosdrecht M.C.M.and Heijnen J.J.Modelling biological phosphorus and nitrogen removal in a full scale activated sludge process[J].Wat.Res.,1999,33(16):3459-3468.
    [7]Koch G,et a.(2000).Calibration and validation of activated sludge model No.3 for Swiss municipal wastewater,Wat.Res,34(14),P3580.
    [8]Koch G,et al(2001).Calibration and validation of an ASM3-based steady state model for activated sludge systems PartI:prediction of phosphorus removal,Wat.Res,35(9),P2246.
    [9]Furumai,Hiroaki,Kazmi,Absar A,et al..Modelling long term nutrient removal in a sequencing batch reactor.Wat.Sci.Tech.l999,33(11):2708-2714
    [10]朱石清,唐建国,周骅.美国South Bermuda污水厂的升级改造.中国给水排水,2006,Vol 22(4):31-33
    [11]Veldhuizen H.M.V.,van Loosdrecht M.C.M.and Heijnen J.J.Modelling biological phosphorus and nitrogen removal in a full scale activated sludge process[J].Wat.Res.,1999,33(16):3459-3468.
    [12]Cinar,Ozer,Daigger,Glen T,Graef,StepHen P.Evaluation of IAWQ Activated Sludge Model No.2 using steady-state data from four full-scale wastewater treatment plants.Wat.Env.Res..1998,70(6):1216-1224;
    [13]Carucci,A.Rolle,E.Smurra,P..Management optimization of a large wastewater treatment plants.Wat.Sci.Tech..1999,3 9(4):129-136
    [14]Meyer,UPopel,H.J..Fuzzy-control for improved nitrogen removal and energy saving in WWT-plants with pre-denitrification Wat.Sci.Tech.2003,47(11):69-76;
    [15]周雪飞.活性污泥1号模型(ASM1)水质特性参数研究[博士后出站报告].上海:同济大学环境科学与工程学院,2003.
    [16]甘立军.活性污泥1号模型(ASM1)水质特性参数测定研究[硕士学位论文].上海:同济大学环境科学与工程学院,2003.
    [17]周雪飞.活性污泥数学模型中异氧菌产率系数测定方法的研究.环境污染与防治,2006,Vol.28(7):493-495
    [18]甘立军,刘建勇,顾国维等.ASM1中化学计量系数的测定与计算。中国给水排水,2003,Vol.19(1):79-81
    [19]顾雪峰.ASM2号模型有机物组分的测定研究[硕士学位论文].上海:同济大学环境科学与工程学院,2005
    [20]徐丽婕,朱五星,邱勇等.开发式呼吸速率法用于ASM2D参数测量.中国给水排水,2006,Vol.22(7):78-81
    [21]段焕丰.活性污泥数学模型基本参数的确定方法研究.苏州科技学院学报,2005,Vo18(3):41-43
    [22]王闯.活性污泥数学模型研究[博士学位论文].上海:同济大学环境科学与工程学院,2003.
    [23]刘芳.城市污水厂活性污泥数学模型的参数测定及模拟研究[博士学位论文].上海:同济大学环境科学与工程学院,2004.
    [24]刘建勇,顾国维.利用神经网络动态模拟生物脱氮除磷过程.中国给水排水,2003,Vol.19(11):4-6
    [25]陈晓龙,杨海真,顾国维.活性污泥2号模型的应用与校正.工业用水与废水,2003,Vol.34(1):1-4
    [26]季民,霍金胜,胡振苓等.活性污泥数学模型的研究与应用.中国给水排水,2001,Vol.17(8):18-22
    [27]唐建国.工艺优化诊断技术用于污水厂的改造.中国给水排水,2006,Vol.22(2):26-30
    [28]朱向东,郝二成等,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
    [29]张代钧,卢培利,严晨敏等.活性污泥2号模型用于城市污水处理厂脱氮除磷改造的研究[J].环境科学学报,2003,23(3):332-337
    [30]朱石清,George Lee,尚爱安.大型污水处理厂工艺优化及改造案例分析.中国给水排水2007,23(14):29-32
    [31]陈立,EFOR程序的仿真模拟功能应用研究[J],中国给水排水,1998,14(5):15-18
    [32]庞煜,龙腾锐.污水处理工艺系统优化设计理论的研究与发展.环境污染治理技术与设备,2003,4(3)
    [33]魏权龄,王日爽等编著,数学规划与优化设计,国防工业出版社,1984;
    [34]Lynn,WR,LoganJ.A.,and Charnes,A.,Systems Analysis for Planning Wastewater Treatment Plants[J].Jour.Water Poll.Control Fed,34,565.581(1962);
    [35]Chia.S.S.,and Krishnan,P,Dynamic Optimization for Industrial Waste Treatment Desig n[J].Jour.Water Poll.Control Fed.,41,1787-1802(1969);
    [36]Evenson,D.E.,Orlob,G.T.,and Mouser,K.R.,Perliminary Selection of Waste Treatment System[J].jour.Water poll.Control Fed.,41,1845-1858(1969);
    [37]Chia,S.S.,and Defilippi,J.A.,System Optimization of Waste Treatment Plant Process Design[J].Journal of the Environmental Engineering Division,ASCE,Vol.96,1970,pp.409-421;
    [38]Tyteca,D.,Nonlinear Programming Model of Wastewater Treatment Plant[J].Journal of the Environmental Engineering Division,ASCE,107(4),747-766(1981)-.
    [39]Middleton,A.C,and Lawrence,A.W.,Least Cost Design of Activated Sludge systems[J].Jour.Water poll.Control Fed.,48,889-905(1976);
    [40]Bowden K.,Gale,R.S.,and Wreight,D.E,Evaluation of the CIRIA Prototype Model for the Design of Sewage Treatment Works[J].Jour.Water poll.Control Fed.,75,192-205(1976);
    [41]Lauria,D.T,Uunk,J.B.,and Schaefer,J.K.,Activated Sludge Process Design[J].Journal of the environmental engineering division,ASCE,103(4),625-645(1977);
    [42]Craig,E.E.,Meredith,D.D.and MiddletonA.C.,Algorithm far Opimai Activated Sludge Design[J].Journal of the Environmental Engineering Division,ASCE,Vol.104,No.EE6,Dec.,1978,pp.1101-1117;
    [43]Rossman,LA.,Synthesis of Waste Treatment Systems by Implicit Enumeration[J].Jour.Water pollu.Control fed.,52,148-160(1980);
    [44]Dick,R.L,Integration of Sludge Management Processes[J].Proc.Int.Symp.On Wastewater Engrg.and Mgmt.,Society of Environmental Science of Guangdong,Guangzhou,People's Republic of China,Mar.,1984
    [45]Uber,J.G.,Pfetter,J.T.,and Brill,E.D.,Jr.,Robust Optimal Design for Wastewater Treatment Ⅱ:Application[J].Journal of the Environmental Engineering Division,ASCE,117(4),438-456(1991);
    [46]Tang,C.C,Bril,E.D.Jr.,and Pfetter,J.T,Comprehensive Models of an Activated Sludge Wastewater Treatment System[J].Journal of the Environmental Engineering Division,ASCE,113,No.10,pp.952-969
    [47]Tang,C.C.,Brill,E.D.,Jr.,and Pfetter,J.T.,OptimizationTechniques for Secondary Waste water Treratment System[J].Journal of the Enviornmental Engineering Division,A SCE,113,No.10,pp.935-951(19876
    [48]Kao,J.J,Brill,E.D.,Jr.,and Pfetter,J.T,and Geselbracht,J.J.,Computer-based Environment for Wastewater Treatment Plant Design[J].Journal of the Enviornmental Engineering Diviion,ASCE,Vol.119,No.5,pp.931-945(1993);
    [49]Alderman,B.J.,Optimization Studies for the Use of Anaeorbic pretreatment at Small Wastewater Treatment Facilities[J].Rep.No.94.1,W J.Rowley Lab.,Clarkson Univ,Potsdam,N.Y;
    [50]付国伟,程声通等,[M]水污染控制系统规划,清华大学出版社,1985
    [51]隋军,王宝贞等,厌氧法污水处理系统的优化设计[J],中国给水排水,VoL.8,No.4,1992
    [52]蒋惠忠,污水处理流程优化动态规划[J],环境保护,1998年12期;
    [53]林玉鹏,曾光明等,城市污水处理厂优化设计研究,[J]江苏环境科技,Vol.12,No.4,1999;
    [54]林玉鹏,曾光明等,考虑不确定因素的城市污水处理厂优化设计模型研究(工,11),[J]湖南大学学报(自然科学版),W127,NoA,2000;
    [55]林玉鹏,考虑不确定因素的城市污水处理工艺的优化设计理论及方法研究,湖南大学硕士研究乍论文,2000年;
    [56]庞子山.活性污泥法工艺系统优化设计模型及其应用研究:[博士学位论文].重庆:重庆大学,2004;
    [57]周传庭.活性污泥工艺的模拟与优化设计:[硕士学位论文].上海:同济大学环境学院,2006;
    [58]张亚雷,李咏梅译.活性污泥数学模型[M].上海:同济大学出版社,2002.
    [59]徐伟峰,生物脱氮除磷ASM2D模拟及机理研究[D].上海:同济大学,2006
    [60]周雪飞,顾国维,刘建勇等.城市污水处理厂生物处理工艺运行效果的数学模拟.同济大学学报(自然科学版),2004,Vol.32(6):745-748
    [61]王磊,城市污水厂模拟基础研究[D].上海:同济大学,2001
    [62]郭亚萍.活性污泥法处理城市生活污水的ASM2d模型研究[博士学位论文].上海:同济大学环境科学与工程学院,2005.
    [63]崔力明.活性污泥1号模型参数的测定与模拟[硕士学位论文].上海:同济大学环境科学与工程学院,2004.
    [64]宋文清.上海市城市污水处理厂活性污泥1号模型(ASM1)的水质特性参数研究[硕士学位论文].上海:同济大学环境科学与工程学院,2003.
    [65]黄勇,杨铨大.生物处理动力学参数测定研究.中国环境科学,1996,16(2):123-127
    [66]任洁,顾国维,杨海真.改良型A2O工艺处理城市污水的中试研究.给水排水,2000,26(6):7-10

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