用户名: 密码: 验证码:
CWM1模型在人工湿地水体修复及生活污水处理中的应用研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本论文在CWM1模型描述人工湿地污染物生化反应过程的基础上,引入潜流人工湿地中介质对颗粒态物质的过滤吸附作用、表面流人工湿地对颗粒物的沉淀作用及植物吸收同化作用对各组分反应速率的影响,建立了人工湿地污染物去除模型,并采用所建模型对渭河西安城市段水体改善项目小试工程、高陵县通远镇镇域污水处理站表面流人工湿地及蓝田水陆湾度假村污水处理工程潜流人工湿地进行了污染物模拟分析,验证了所建模型的适用性。
     本论文得出以下结论:
     (1)渭河西安城市段水体改善项目小试工程进水COD浓度范围为71~280mg/L,BOD_5浓度范围为28~161mg/L,氨氮浓度范围为15~36mg/L;三级潜流出水COD浓度范围为16~47mg/L,BOD5浓度范围为2~4mg/L,氨氮浓度范围为2~8mg/L。整个潜流区COD去除率范围为77.1%~93.5%,BOD5去除率范围为92.7%~98.7%,氨氮去除率范围为66.7%~90%。
     (2)渭河西安城市段水体改善项目小试工程二级表流出水COD浓度范围为36~75mg/L,BOD5浓度范围为5~12mg/L,氨氮浓度范围为6~15mg/L。整个表流区COD去除率范围为39.7%~85%,BOD_5去除率范围为78.6%~94.9%,氨氮去除率范围为44.4%~66.7%。
     (3)渭河西安城市段水体改善项目小试工程试验植物为芦苇、芭茅及香蒲,试验结果表明,芦苇及香蒲生长情况良好,而芭茅不适合作为此环境中的湿地植物。待湿地系统取消管理后,全部被本土植物所覆盖。
     (4)CWM1模型主要描述了微生物的生物动力学过程,本文在CWM1模型理论的基础上,考虑潜流人工湿地中基质过滤吸附作用和植物吸收同化作用、表面流人工湿地中颗粒物的沉淀作用和植物对污染物去除率的影响,建立人工湿地污染物去除模型对三级潜流人工湿地及二级表面流人工湿地污染物去除效果进行模拟,可以取得比较可信的模拟结果。
     (5)对高陵县通远镇镇域污水处理工程及蓝田水陆湾度假村污水处理工程,利用改进的CWM1模型进行动态模拟分析,模拟结果与实测值基本吻合,蓝田水陆湾度假村污水处理工程模拟结果好于高陵县通远镇镇域污水处理工程。
     论文通过试验研究、模型研究及理论分析,得到了以下具有创新性的研究成果:
     (1)以渭河西安城市段水体改善项目小试工程为研究对象,按照CWM1模型水质参数的测定方法对氵皂河水质中各组分进行了界定。
     (2)在CWM1模型理论的基础上,考虑潜流人工湿地中基质过滤吸附作用、表面流人工湿地中颗粒物的沉淀作用对污染物去除率的影响和植物吸收同化作用对各组分反应速率的影响等因素,建立了人工湿地污染物去除模型。
     (3)采用改进的CWM1模型对渭河西安城市段水体改善项目小试工程及生活污水处理工程污染物去除效果进行模拟,并对模型进行参数律定,取得了与实测结果比较吻合的结果。
In this paper, the Constructed Wetland Model No(CWM1) was employed to describe thebiochemical reaction for pollutants in constructed wetlands. On this basis, the filtration and adsorption of mediums on particles in subsurface flow constructed wetlands, the sedimentationof particles in surface flow constructed wetlands and the assimilation of plants were considered for the impacts on reaction rates of each component. As a result, a model for pollutants removal with constructed wetlands was built up, which was then adopted to a small scale water improvement project for Weihe River in Xi’an Section, a surface flow constructed wetland of sewage treatment station in Tongyuan Town, Gaoling County as well as a subsurface flow constructed wetland for sewage treatment project of Shuilu Bay Resort in Lantian. The simulated analyses of pollutants at these points were conducted and the adaptability of the model was verified.
     The following conclusions were drawn:
     (1) The influent concentrations of chemical oxygen demand (COD),5-day biologicaloxygen demand (BOD_5) and ammonia nitrogen (NH_4~+-N) of the in-site experiments were71~280mg/L,28~161mg/L and15~36mg/L respectively. The effluent COD, BOD5andNH4+-N concentrations of the three-stage sub-surface flow constructed wetland were16~47mg/L,2~4mg/L and2~8mg/L respectively. Removal efficiencies of COD, BOD5andNH4+-N of the sub-surface flow constructed wetland were77.1%~93.5%,92.7%~98.7%and66.7%~90%respectively.
     (2) The effluent COD, BOD_5and NH_4~+-N concentrations of the two-stage surface flowconstructed wetland were36~75mg/L,5~12mg/L and6~15mg/L respectively. Removalefficiencies of COD, BOD_5and NH4+-N of the surface flow constructed wetland were39.7%~85%,78.6%~94.9%and44.4%~66.7%respectively.
     (3) Plants tested in the water quality improvement projects were reed, Miscanthusfloridulus (Labill.)Warb. and cattail. According to the in-site experiments, reed and cattailgrew well in constructed wetlands, and Miscanthus floridulus (Labill.)Warb. can not to be awetland plant in this environment. Constructed Wetlands was covered by native plants whenmanagement was stopped.
     (4) CWM1mainly described the dynamic process of microbial growth. In this paper,taken the filtration and adsorption effects of the constructed wetland on substrates and plantsassimilation into consideration, the contamination removal model was constructed andapplied to the simulation of the contamination removals by the two-stage surface flowconstructed wetland and the three-stage flow constructed wetland.
     (5) The improved CWM1was utilized to simulate the dynamic process of the twoconstructed wetlands located in Tongyuan town, Gaoling County and Shuiluwan resort,Lantian County respectively, and the simulation results were in accordance with those ofexperimental results basically. The simulation results of the model to the wastewater treatmentplant located in Shuiluwan resort, Lantian County was better than those of Tongyuan town,Gaoling County.
     The following innovation results were obtained through experiments and theoreticalanalysis:
     (1) The pollutants in the Weihe River along urban reaches of Xi’an were regarded as theobject of the study. According to the method suggested by the CWM1, the parameters ofwater quality in the Zaohe River were defined.
     (2) On the basis of CWM1, taken the filtration and adsorption effects of the constructedwetland on substrates and plants assimilation into consideration, the contamination removalmodel for the constructed wetland was constructed.
     (3) The improved CWM1was calibrated and utilized to simulate the operation of waterquality improvement projects and domestic wastewater treatment projects, and thesimulation results were in good accordance with those of experimental results.
引文
[1]Hiley P D.The reality of sewage treatment using wetland.ICWS94Proc.,1994:68~83
    [2]李涛,周律,武红功,等.水平垂直流湿地处理生活污水示范工程研究[J].中国给水排水,2010,26(11):88-91
    [3]陈晓东.人工湿地在汾河中下游生态修复工程设计中的应用[J].环境保护与循环经济,2012,02:37
    [4]Block A, Kelana Centre Point Jalan. The use of constructed wetlands for wastewater treatment[M].Wtelands International-Malaysla office, Malaysia,2003
    [5]陆健健,何文珊,童春富,等.湿地生态学[M].北京:高等教育出版社,2009:37-40
    [6]张清.人工湿地的构建与应用[J].湿地科学,2011,7(4):373~378
    [7]吴玲.湿地植物与景观[M].北京:中国林业出版社,2010:2
    [8]张秋贞,张鸿涛,廖志民,等.三段式水平潜流人工湿地的中试研究[J].给水排水,2007,33:158-161
    [9]马胜华,刘存莉.人工湿地在城市污水处理工程中的应用[J].沿海企业与科技,2007,08:33-35
    [10]邓辅唐,孙石,李强,等.人工湿地技术处理河道污水[J].环境工程,2006,24(3):90-92
    [11]海热提,范立维,谢涛,等.两级潜流人工湿地在中国东北高寒地区的应用研究[J].环境科学,2007,28(11):2442-2447
    [12]李成斌.长春市南部污水处理厂的设计及可行性分析[D].吉林,吉林大学,2008
    [13]刘月,张宁.冀州市污水处理厂的工艺设计和设计特点[J].中国市政工程,2011,1:34-37
    [14]黄绪达,王琳.青岛市麦岛污水处理厂扩建工程设计[J].给水排水,2007,33(9):31-35
    [15]黄宁俊.西安市第四污水处理厂工艺设计参数试验及应用研究[D].西安,长安大学,2008
    [16] Kickuth R. Degradation and incorporation of nutrients from rural wastewaters by plant rhizospHereunder limnic conditions[G]. In: Utilization of Manure By Land Spresding. London:Comm. Of the Euro.Communities,1997
    [17]Seidel K, Happel H, Graue G, Contributions to revitalization of wasters[M].2nd ed. StifungLimnologische Aebeitsgruppe Dr. Seidel e. V., Krefeld(Germany),1978:1~62
    [18]Kickuth S K. MacropHytes and water purification[G]. In:Biological Control of Water Pollution.PhiladelpHia: Pensylvania University Press,1976
    [19]朱彤,等.人工湿地污水处理系统应用研究[J],环境科学研究,1991,4(5):17~22
    [20]李科德,胡正嘉.芦苇床系统净化污水的激励[J],中国环境科学,1995,15(2):140~144
    [21]王世和.人工湿地污水处理理论与技术[M].北京:科学出版社,2007:1
    [22]Chris C Tanner. Organic matter accumulation during maturation of gravel-bed constructed wetlandstreating farm dairy wastewater[J]. Wat. Res.,1998,32(10):3046~3054
    [23]Dani Vrhocsek, Constructed wetland(CW) for industrial wastewater treatment[J]. Wat. Res.,1996,30(10):2286~2292
    [24]Julie Stauffer.水危机[M].北京:科学出版社,2000
    [25]Hans Brix. Use of constructed wetland in water pollution control: historical development, present status,and future perspectives[J]. Wat. Sci.&Tech.,1994,30(8):209~223
    [26]吴献花,等.人工湿地处理污水的机理[J].玉溪师范学院学报,2002,18(1):103~105
    [27]梁继东,周启星.人工湿地污水处理系统研究及性能改进分析[J].生态学杂志,2003,22(2):49~55
    [28]梁威,胡洪营.人工湿地净化污水过程中的生物作用[J].中国给水排水,2003,19(10):28~31
    [29]吴晓磊.人工湿地废水处理机理[J].环境科学,16(3):83~86
    [30]Reddy K R. Fate of nitrogen and phosphorus in a wastewater retention reservoir containing aquaticmacrophytes[J]. Environ. Qual.,1983,12(1):137~140
    [31]缪绅裕,陈桂珠,等.人工湿地中的磷在模拟秋茄湿地系统中的分配与循环[J].生态学报,1999,19(2):236~241
    [32]林鹏,林光辉.九龙江口红树林研究Ⅳ:秋茄群落的氮、磷的积累和循环[J].植物生态学与植物学丛刊,1985,9(1):21~32
    [33]Reddy. Nutrient transformations in aquatic macrophyte filters used for water purification[J]. In Futureof Water Reuse. Vol.2:600~678
    [34]Reddy. Diel variations in physic_chemical parameters of water in selected aquatic system[J].Hydrobiology,1981,85:201~207
    [35]杨桂芳,等.慢速土地处理系统生存效应研究[M].水污染防治及城市污水资源化技术,北京:科学出版社,2010
    [36]Brix H. Treatment of wastewater in the rhizosphere of the wetland plants-the root-zone method[J]. Wat.Sci.&Tech.,1987,19:107~118
    [37]Coneley L M, Dick R I, Lion L W. An assessment of the root zone method of wastewater treatment[J].Res. Journal of WPCF,1991,63:239~247
    [38]Rogers K H, et al. Nitrogen removal in experimental wetland treatment system: evidence for the role ofaquatic plants[J]. Res. Journal of WPCF,1991,63(7):934~941
    [39]Hans Brix. Functions of macrophytes in constructed wetlands[J]. Wat. Sci.&Tech.,1996,29(4):71~78
    [40]Sapkota D P. Gramel media filtration as a constructed wetland component for the reduction ofsuspended solids from maturation pond dffluent[J]. Wat. Sci.&Tech.,1994,29(4):55~66
    [41]Ryszard Blazejewski. Soil clogging phenomena in constructed wetlands with subsurface folw[J]. Wat.Sci.&Tech.,1993,35(5):183~188
    [42]Christoph Platzer. Soil clogging in vertical folw reed beds-mechanics, parameters, consequences andsolutions[J]. Wat. Sci.&Tech.,1997,35(5):175~181
    [43]孙广智.下行流芦苇床污水处理实验研究与设计方程[J].中国给水排水,1997,:13
    [44]Allan Batchelor. A critical evaluation of a pilot scale subsurface flow wetland:10years aftercommissioning[J]. Wat. Sci.&Tech.,1997,35(5):337~343
    [45]唐运平,米瑞兰.芦苇湿地滤床处理城市污水的研究[J].环境工程,1998,10(2):1~5
    [46]Dale S Nichols. Capacity of natural wetlands to remove nutrients from wastewater[J]. Wat. Res.,1999
    [47]Peter F Breen. A mass balance method for assessing the potential of artificial wetlands for wastewatertrentment[J]. Wat. Res.,1990,24(6):689~697
    [48]Michael C Kemp. Subsurface flow constructed wetlands treating municipal wastewater for nitrogentransformation and removal[J]. Wat. Envir. Res.,1997,69(7):1254~1261
    [49]丁廷华.芦苇湿地法处理污水的机理[J].环境保护,1992,10:19~22
    [50]胡康萍.人工湿地设计中的水力学问题研究[J].环境科学,19914(5):8~11
    [51]Persson J. Hydraulics efficiency of constructed watlands and ponds[J]. Wat. Sci.&Tech.,1999,40(3):291~300
    [52]Anne L Sirni. Design and hydraulic performance of a constructed wetland treating oil refinerywastewater[J]. Wat. Sci.&Tech.,1999,40(3):301~307
    [53]Andrew C King. Hydraulic tracer studies in a pilot scale subsurface folw constructed wetland[J]. Wat.Sci.&Tech.,1997,35(5):189~196
    [54]Baker L A. Design considerations and applications for wetland treatment of high nitrate waters[J]. Wat.Sci.&Tech.,1995,38(1):389~395
    [55]Paul Cooper. Design of a hybrid reed bed system to achieve complete nitrification and denitrification ofdomestic sewage[J]. Wat. Sci.&Tech.,1999,40(3):283~289
    [56]Christoph Platzer. Design recommendations for subsurface flow caonstructed wetlands for nitrificationand denitrification[J]. Wat. Sci.&Tech.,1999,40(3):257~263
    [57]Burgoon P S. Performance of subsurface folw wetlands with batchload and continuous flowconditions[J]. Wat. Environ. Res.1995,67(5):855~862
    [58]Walter H Zzchritz. Performance of an artificial wetland filter treating facultative lagoon effluent atCarville, Louisiana[J]. Wat. Environ. Res.1993,65(1):46~52
    [59]张甲耀.潜流型人工湿地污水处理系统的研究[J].环境科学,1998,19(4):36~39
    [60]Ronal W Crites. Design criteria and practice for constructed wetlands[J]. Wat. Sci.&Tech.,1994,29(4):1~6
    [61]Breen P F. A mass balance method for assessing the potential of artificial wetlands for wastewatertreatment[J].Wat. Res.,1990,24(6):689~697
    [62]IWA. Constructed wetlands ofr pollution control: processes, performance, design and operation[M].Scientific and Technical Report No.8. London:IWA Publishing,2000
    [63]Kadlec R H, Knight R L. Treatment Wetlands[M]. Boca Raton:CRC Press,1996
    [64]史云鹏,周琪.人工湿地污染物去除动力学模型研究进展[J].工业用水与废水:2002,33(6),12~15
    [65] Langergraber, G., Rousseau, D., García, J.,&Mena, J.(2009b). CWM1–A general model to describebiokinetic processes in subsurface flow constructed wetlands. Water Science and Technology,59(9),1687–1697
    [66] Langergraber, G.2008Modeling of processes in subsurface flow constructed wetlands—a review.Vadoze Zone J.7(2),830–842
    [67]陆琦,郭宗楼.人工湿地系统水力学优化设计研究[D].生物系统工程与食品科学学院,2005
    [68]胡康萍.人工湿地设计中的水力学问题研究[J].环境科学研究,1991,4(5):8~12
    [69]王久贤.白泥坑人工湿地水力学计算研究[J].广东水利水电,1997,6:50~52
    [70]吴振斌,任明迅,付贵萍,等.垂直流人工湿地水力学特点对污水净化效果的影响[J].环境科学,2001,22(5):45~49
    [71]付贵萍,吴振斌,任明迅,等.复合垂直流湿地反应动力学及水流流态的研究[J].中国环境科学,2001,21(6):535~539
    [72]付贵萍,吴振斌,任明迅.垂直流人工湿地系统中水流规律的研究[J].环境科学学报,2001,21(6):720~725
    [73]王世和,王薇,俞燕.水力条件对人工湿地处理效果的影响[J].东南大学学报,2003,33(3):359~362
    [74]U S EPA. Constructed Wetland Treatment of Municipal Wastewaters Manual[M]. Cincinnati: Office ofResearch and Development,2000
    [75] Christoph Plataer. Soil clogging in vertical flow reed beds-mechanisms, parameters, consequences andsolutions[J]. Wat Sci Tech,1997,35(5):175-181
    [76] Winter K J, Goetz D. The impact of sewage composition on the soil clogging phenomena of verticalflow constructed wetlands[J]. Wat Sci Tech,2003,48(5):9-14
    [77] US EPA.Manual:Constructed wetlands treatment of municipal wastewater[Z]. Cincinnati,Ohio:EPA,2000,111-119
    [78]吴晓芙.湿地与景观[M].北京:中国林业出版社,2005
    [79]Richard C Russell. Constructed wetlands and mosquitoes:Health hazards and management options-AnAustralian perspective[J]. Ecological Engineering,1999,12:107-124
    [80]Robert L Knight, William E Walton, George F O Meara. Strategies for effective mosquito control inconstructed treatment wetlands[J]. Ecological Engneering,2003,21(11):211-232
    [81] Rousseau, D. P. L.2005Performance of constructed treatment wetlands: model-based evaluation andimpact of operation and maintenance. PhD Thesis, Ghent University, Ghent, Belgium(available fromhttp://biomath.ugent.be/publications/download/)
    [82] Ojeda, E., Caldentey, J., Saaltink, M. W.&Garc′a, J.2008Evaluation of relative importance ofdifferent microbial reactions on organic matter removal in horizontal subsurfaceflow constructed wetlandsusing a2D simulation model. Ecol.Eng.34(1),65–75
    [83] Mena, J.2008Tratamiento de aguas residuales urbanas y v′nicas mediante humedales artificiales deflujo subsuperficial. PhD Thesis, University of Castilla-La Mancha, Ciudad Real, Spain[in Spanish]
    [84] C.P.Leslie Grady,Jr., Glen T. Daigger, Henry C. Lim.《废水生物处理》第2版[M],北京:化学工业出版社,2003.
    [85]国际水协废水生物处理设计与运行数学模型课题组.活性污泥数学模型[M].上海:同济大学出版社,2002
    [86] Coen F., Vanderhaegen B., Vanrolleghem P.A., et al. Improved design and control of industrial andmunicipal nutrient removal plants using dynamic model [J]. Wat. Sci. Tech.,1997,35(10):53-61
    [87] P.J. Roeleveld, M.C.M. van Loosdrecht. Experience with guidelines for wastewater characterization inthe Netherlands [J]. Wat. Sci.Tech.,2002,45(6):89-97
    [88]周雪飞,顾国维.ASMs中易生物降解有机物(SS)的物化测定方法[J].给水排水,2003,29(11):23-26
    [89]陈莉荣,彭党聪.活性污泥数学模型入流组分测定及应用[J],冶金能源:2003,22(4):50-53
    [90] Sperandio M, Ginestet P, Ginestet P. Application of COD fractionation by a new combined technique:comparison of various wastewater and sources of variability [J]. Wat. Sci.Tech,2001,43(1):181-190
    [91] Jacek Makinia, Scott A Wells. A general model of the activated sludge reactor with dispersiveflow-model development and parametere-stimation [J]. WatRes,2000,34(16):3987-3996
    [92]张希衡.水污染控制工程[M].北京:冶金工业出版社,1997
    [93]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[D].博士学位论文,同济大学,2004
    [94]司马卫平,何强,夏安林,王爱萍.人工湿地处理城市污水效能的影响因素分析[J].环境工程学报,2008,2(3):321
    [95]Mamais D,Jenkins D,Pitt P. A rapid physical-chemical method for the determination of easilybiodegradable souble COD in municipal wastewater [J]. Water Research,1993,27(1):195-197
    [96]Lahav O, Loewenthal R E. Measurement of VFA in anaerobic digestion:The five-point titration methodrevised[J]. Water SA,2000,26(3):389-392
    [97]成水平,夏宜峥.香蒲,灯芯草人工湿地的研究Ⅲ:净化污水的机理[J].湖泊科学,1998,10(2):66-71
    [98]Francisco A Comin, et al. Nitrogen removal and cycling in restored wetlands used as filters of nutrientsfor agricultural runoff[J]. Water Science and Technology,1997,35(5):255-261
    [99]Lin Ying2Feng, Jing Shuh2Ren, Wang Tze2Wen et al. Effects of macrophytes and external carbonsources on nitrate removal from groundwater in constructed wetlands[J].EnvironmentalPollution,2002,119:413-420
    [100]叶剑锋.垂直潜流人工湿地中污染物去除机理研究[D].上海,同济大学,2007
    [101]Liu Wenxin, Dahab Mohamed F, Surampali Rao Y. Nitrogen transformations modeling insubsurface-flow constructed wetlands[J].Water Environment Research,2005,77(3):246
    [102]张红涛,王拯.人工湿地中基质的研究进展[J].广东化工,2009,36(11):73-74
    [103]杨林,伍斌赖,发英,等.7种典型挺水植物净化生活污水中氮磷的研究[J].江西农业大学学报,2011,33(3):616-621
    [104]凌祯,杨具瑞,于国荣,等.不同植物与水力负荷对人工湿地脱氮除磷的影响[J].中国环境科学,2011,31(11):1815-1820
    [105]刘慎坦,王国芳,谢祥峰,等.不同基质对人工湿地脱氮效果和硝化及反硝化细菌分布的影响[J].东南大学学报,2011,41(2):400-405

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700