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水平潜流人工湿地流场数值模拟与结构优化分析

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丁彦礼, 何珊, 宋志鑫, 白少元, 解庆林, 游少鸿. 水平潜流人工湿地流场数值模拟与结构优化分析[J]. 环境工程学报, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
引用本文: 丁彦礼, 何珊, 宋志鑫, 白少元, 解庆林, 游少鸿. 水平潜流人工湿地流场数值模拟与结构优化分析[J]. 环境工程学报, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
shu
Ding Yanli, He Shan, Song Zhixin, Bai Shaoyuan, Xie Qinglin, You Shaohong. Numerical simulations of flow field and analyses of optimal structure for horizontal subsurface flow constructed wetlands[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
Citation: Ding Yanli, He Shan, Song Zhixin, Bai Shaoyuan, Xie Qinglin, You Shaohong. Numerical simulations of flow field and analyses of optimal structure for horizontal subsurface flow constructed wetlands[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
shu

水平潜流人工湿地流场数值模拟与结构优化分析

  • 1.

    桂林理工大学 广西矿冶与环境科学实验中心, 桂林 541004

  • 2.

    广西环境污染控制理论与技术重点实验室, 桂林 541004

  • 基金项目:

    国家自然科学基金资助项目(51408147,41404116)

    广西自然科学基金资助项目(2014GXNSFBA118234)

    广西科学研究与技术开发计划项目(桂科攻14124004-3-7)

    "广西危险废物处置产业化人才小高地"资助项目

  • 中图分类号: X703.1

Numerical simulations of flow field and analyses of optimal structure for horizontal subsurface flow constructed wetlands

  • 1.

    Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin University of Technology, Guilin 541004, China

  • 2.

    Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China

  • Fund Project:

  • 摘要: 为了解决传统水平潜流人工湿地在床体结构设计方面的随意性与经验化问题,以流场均匀分布为目标,利用数值模拟方法对人工湿地床体结构参数进行优化,包括人工湿地基质填充厚度、床体长宽比例、构建尺度、主体填料区的分层填充方式,解析基质结构的配置规律,实现各参数的定量化。模拟结果表明,填料的分层配置对流场分布的影响很大。在基质厚度为0.6 m,长宽比为5:3,且填料按照渗透系数指数规律分层填充的情况下,流场分布较均匀。在此基础上,根据模拟结果所确定的结构参数构建潜流人工湿地小试装置,并与传统结构人工湿地进行对照,对模拟结果进行验证。实验结果表明,当水力停留时间(HRT)为36 h时,分层填充与单层填充方式的人工湿地对COD、TP和TN的平均去除率分别为64.89%、82.72%、69.69%和29.84%、39.15%、31.83%,结构优化后的人工湿地净化效果得以显著提升。
    Abstract: A simulation-based design approach is used to find the optimal substrate structure of horizontal subsurface flow constructed wetlands for avoiding the arbitrary and empirical problems during the substrate structure design.The simulation scheme,describing variable filling depth,the aspect ratio,the constructed size and the layered filling styles,quantifies the structure parameters and matching rules.The simulation results showed that the substrate matching approach is a crucial factor for the flow field distribution.With 0.6m thickness and 5:3 aspect ratios,the uniform flow field distribution in wetlands is linked with the exponential equation for the permeability coefficients.Two pilot-scale SSCWs (traditional design and optimal design) were constructed according to the simulation parameters to verify the simulation results,it showed that with the HRT of 36 h,the mean removal rates of COD,TP and TN in optimal design SSCW were 64.89%,82.72%,69.69%,respectively,in contrast,which were 29.84%,39.15% and 31.83% in the traditional design SSCWs.It indicated that the removal efficiencies of SSCWs were improved significantly after structure optimization.
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  • [1] David S.,Lanchlan F.,James B.,et al.Efficiency of small constructed wetlands for subsurface treatment of single-family domestic effluent.Ecological Engineering,2002,18(4):429-440
    [2] Dunne E.J.,Culleton N.,O'Donovan G.,et al.Phosphorus retention and sorption by constructed wetland soils in southeast Ireland.Water Research,2005,39(18):4355-4362
    [3] Babatunde A.O.,Zhao Y.Q.,O'Neill M.,et al.Constructed wetlands for environmental pollution:A review of development research and practice in Ireland.Environment International,2008,34(1):116-126
    [4] Brovelli A.,Carranza-Diaz O.,Rossi L.,et al.Design methodology accounting for the effects of porous medium heterogeneity on hydraulic residence time and biodegradation in horizontal subsurface flow constructed wetlands.Ecological Engineering,2011,37(5):758-770
    [5] Wanko A.,Tapiab G.,Mosé R.,et al.Adsorption distribution impact on preferential transport within horizontal flow constructed wetland (HFCW).Ecological Modelling,2009,220(23):3342-3352
    [6] Ronkanen A.K.,Kløve B.Use of stabile isotopes and tracers to detect preferential flow patterns in a peatland treating municipal wastewater.Journal of Hydrology,2007,347(3-4):418-429
    [7] 白少元,宋志鑫,丁彦礼,等.潜流人工湿地基质结构与水力特性相关性研究.环境科学,2014,35(2):160-164 Bai Shaoyuan,Song Zhixin,Ding Yanli,et al.Correlation of substrate structure and hydraulic characteristics in subsurface flow constructed wetlands.Environmental Science,2014,35(2):160-164(in Chinese)
    [8] Ronkanen A.K.,Kløve B.Hydraulics and flow modelling of water treatment wetlands constructed on peatlands in Northern Finland.Water Research,2008,42(14):3826-3836
    [9] Liolios K.A.,Moutsopoulos K.N.,Tsihrintzis V.A.Modeling of flow and BOD fate in horizontal subsurface flow constructed wetlands.Chemical Engineering Journal,2012,200-202:681-693
    [10] 白少元,王明玉.新型人工浮岛流场数值模拟与结构优化分析.环境工程学报,2009,3 (12):2208-2214. Bai Shaoyuan,Wang Mingyu.Numerical simulations of the flow field and analyses of the optimal filling structure for a new type of constructed floating island.Chinese Journal of Environmental Engineering,2009,3(12):2208-2214(in Chinese)
    [11] Kadlec R.H.Detention and mixing in free water wetlands.Ecological Engineering,1994,3(4):345-380
    [12] Coates K.H.,Smith B.D.Dead-end pore volume and dispersion in porous media.Society of Petroleum Engineers Journal,1994,4(1):73-84
    [13] Werner T.M.,Kadlec R.H.Wetland residence time distribution modeling.Ecology Engineering,2000,15(1-2):77-90
    [14] 戚景南,黄玉明.MATLAB软件在构建潜流人工湿地水力学模型中的应用.西南大学学报(自然科学版),2008,30(5):145-149 Qi Jingnan,Huang Yuming.Application of MATLAB Software to model the hydrodynamic characteristic in the subsurface flow constructed wetland.Journal of Southwest University (Natural Science Edition),2008,30(5):145-149(in Chinese)
    [15] 孔德川,丁爱中,郑蕾,等.分层式潜流人工湿地水力学特性数值模拟与分析.环境工程学报,2011,5(4):741-745 Kong Dechuan,Ding Aizhong,Zheng Lei,et al.Numerical simulation and analysis of hydraulic characteristics of layered subsurface flow constructed wetland.Chinese Journal of Environmental Engineering,2011,5(4):741-745(in Chinese)
    [16] 薛禹群,吴吉春.地下水动力学.北京:地质出版社,2010:40-56
    [17] Wanko A.,Tapiab G.,Mosé R.,et al.A new empirical law to accurately predict solute retention capacity within horizontal flow constructed wetlands.Ecological Engineering,2011,37(4):636-643
    [18] 国家环境保护总局.水和废水监测分析方法(第4版).北京:中国环境科学出版社,2002:209-219,243-248,255-257
    [19] García J.,Chiva J.,Aguirre P.,et al.Hydraulic behaviour of horizontal subsurface flow constructed wetlands with different aspect ratio and granular medium size.Ecological Engineering,2004,23(3):177-187
    [20] García J.,Aguirre P.,Barragán J.,et al.Effect of key design parameters on the efficiency of horizontal subsurface flow constructe楤朠湷?慴湬摡?潤灳攮牅慣瑯楬潯湧?癣慡牬椠慅扮汧敩獮?潥湲?瑮桧攬′瀰攰爵昬漲爵洨愴温挺攴‰漵昭?瘱攸爼瑢楲挾慛氲?晝氠潋睡?捴潡渠獗琮牓甮挬瑋敬摡?睰敲瑡汳慥湮摴猠?愮測摂?楩湸琠效爮浔楲瑥瑡整湭瑥?獴愠湯摦?晨楩汧瑨攭牳獴?瑥牮敧慴瑨椠湷条?灴潥湷摡?敥晲映汩畮攠湴瑲?坰慩瑣敡牬?剶敥獲整慩牣捡桬??ぬは?????????????ㄠ????扡牮?孳?ば嵬??桴慥湤朠?乩楴扨椠渼?堾畔慹湰?婡栠敡浮楧湵?坴慩湦楯敬汩楡猼琯慩￣??偮???瑩爾慃捹数牥?獵瑳甠摩祮?景潬牵?慲獡獴敵獳猼椯湩朾?瑅档敯?楯湧瑩散牡慬挠瑅楮潧湩獮?扥敲瑩睮敧攬渲‰栰礶搬爳愵用氲椩挺′爳攸琭攲渴琷椼潢湲￣瑛椲洲敝?憋渖撌?璋犇愬滞珕瀮漴犛瑡?烹犺濥捿攰猄猆效玜?楱滍?愜?眧敦瑦沥愨滪搶?獦祈猩琬攲洰‰昳漬爳″渨电琩爺椳攵渹琭″爰攳洠潗癡慮汧??楨潩灨牥漬捗敡獮獧?慗湥摩??極漠獙祡獮琮敉浮獦??湥杮楣湥攠敯牦椠湨杹??ち?????????????????戠特?孥??嵭??慴椠牥摦??????卦甠牣牯楮摳杴敲???坥?????潬湡敮祤?削?偵??湡?愠獯獦攠獓獯浵整湨瑥?潳晴?瑕桮敩?灥楲敳穩潴浹攠琨敎牡?浵敲瑡桬漠摓?晩潥牮?浥攠慅獤畩牴楩湯杮?琬栲攰‰栳礬搳爳愨电氩椺挳‵挹漭渳搰申挨瑩楮瘠楃瑨祩?潥晳?愩??楲??氲愳摝椠畈浯?浬慡牮楤猠捊甮獆?倬桍牡慲杴浩楮琠敊献?愮甬獇瑲牡慮污楴獡??椮??牴漠潡瑬?浅慦瑦?楣湴?愠?书漠牷晥潴汬歡?啤??晥数湴??祡摮牤漠汦潬杯楷挠慲污?健爠潯据攠獲獥敳獩??のっ????????????????扩牯?嬠??嵡?婡潣畴??楩湳汴潩湣杳??慣楯?奯楧湩杣?卬甠湅?呧楩敮桥敥湲杩?敧琬′愰氰??昲昳攨挳琩?漱昸?愭洲攰渳搼敢摲￣獛漲椴汝?慌湩摧?桴祢摯牤慹甠汁椮捆?氬潎慥摰?漠湈?敍渮栬慂湡捹敳搠?戮楓漮汍潯杤楥捬慩汮?渠楴瑨牥漠杨敹湤?牡敵浬潩癣愠汥?楦湥?汴愠扯?猠捴慲污敮?卶坥?即??潤略牥湰愠決?潮晥??慯穮愠牴摨潥甠獰??慦瑯敲牭楡慮汣獥??て?????????????????㈠?onstructed treatment wetlands.Ecological Engineering,2009,35(5):754-768
    [21] 樊贵盛,刑日县,张明斌.不同级配砂砾石介质渗透系数的试验研究.太原理工大学学报,2012,43(3):343-348 Fan Guisheng,Xing Rixian,Zhang Mingbin.Experimental study on permeability of the sandy gravel media with different gradation.Journal of Taiyuan University of Technology,2012,43(3):343-348(in Chinese)
    [22] Suliman F.,Futsaether C.,Oxaal U.Hydraulic performance of horizontal subsurface flow constructed wetlands for different strategies of filling the filter medium into the filter basin.Ecological Engineering,2007,29(1):45-55
    [23] 陈腾殊,白少元,王敦球,等.基质结构对水平潜流人工湿地净化效果影响.环境工程学报,2012,6(10):3449-3454 Chen Tengshu,Bai Shaoyuan,Wang Dunqiu,et al.Effect of substrate structure on purification performances of horizontal subsurface flow constructed wetlands.Chinese Journal of Environmental Engineering,2012,6(10):3449-3454(in Chinese)
    [24] Bernhard H.S.,Michael A.H.,Stephan U.Salt tracer experiments in constructed wetland ponds with emergent vegetation:Laboratory study on the formation of density layers and its influence on breakthrough curve analysis.Water Research,2004,38(8):2095-2102
    [25] Torrensa A.,Molle P.,Boutin C.,et al.Impact of des
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  • 收稿日期:  2014-12-30
  • 刊出日期:  2015-07-02
丁彦礼, 何珊, 宋志鑫, 白少元, 解庆林, 游少鸿. 水平潜流人工湿地流场数值模拟与结构优化分析[J]. 环境工程学报, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
引用本文: 丁彦礼, 何珊, 宋志鑫, 白少元, 解庆林, 游少鸿. 水平潜流人工湿地流场数值模拟与结构优化分析[J]. 环境工程学报, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
shu
Ding Yanli, He Shan, Song Zhixin, Bai Shaoyuan, Xie Qinglin, You Shaohong. Numerical simulations of flow field and analyses of optimal structure for horizontal subsurface flow constructed wetlands[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
Citation: Ding Yanli, He Shan, Song Zhixin, Bai Shaoyuan, Xie Qinglin, You Shaohong. Numerical simulations of flow field and analyses of optimal structure for horizontal subsurface flow constructed wetlands[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3209-3214. doi: 10.12030/j.cjee.20150722
shu

水平潜流人工湿地流场数值模拟与结构优化分析

  • 1.  桂林理工大学 广西矿冶与环境科学实验中心, 桂林 541004
  • 2.  广西环境污染控制理论与技术重点实验室, 桂林 541004
  • 收稿日期:  2014-12-30
基金项目:

国家自然科学基金资助项目(51408147,41404116)

广西自然科学基金资助项目(2014GXNSFBA118234)

广西科学研究与技术开发计划项目(桂科攻14124004-3-7)

"广西危险废物处置产业化人才小高地"资助项目

摘要: 为了解决传统水平潜流人工湿地在床体结构设计方面的随意性与经验化问题,以流场均匀分布为目标,利用数值模拟方法对人工湿地床体结构参数进行优化,包括人工湿地基质填充厚度、床体长宽比例、构建尺度、主体填料区的分层填充方式,解析基质结构的配置规律,实现各参数的定量化。模拟结果表明,填料的分层配置对流场分布的影响很大。在基质厚度为0.6 m,长宽比为5:3,且填料按照渗透系数指数规律分层填充的情况下,流场分布较均匀。在此基础上,根据模拟结果所确定的结构参数构建潜流人工湿地小试装置,并与传统结构人工湿地进行对照,对模拟结果进行验证。实验结果表明,当水力停留时间(HRT)为36 h时,分层填充与单层填充方式的人工湿地对COD、TP和TN的平均去除率分别为64.89%、82.72%、69.69%和29.84%、39.15%、31.83%,结构优化后的人工湿地净化效果得以显著提升。

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