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当前位置:首页 > 建筑/环境 > 工程监理 > 垂直流表面流复合人工湿地系统对污水的净化效果研究刘雯
-刘雯1,朱映川2,周遗品1,崔理华3* (1.,510225;2.,510240;3.,510642) [目的]研究垂直流-表面流复合人工湿地系统对污水的净化效果。[方法]采用表面流湿地与垂直流湿地组合成的复合人工湿地系统对污水进行处理,研究该系统在水力停留时间分别为48、24、12、6h时对污水的净化效果。[结果]垂直流湿地对COD、BOD的去除率达52%以上,复合湿地系统对有机物的去除率随水力停留时间的增加而有所增加,对COD、BOD的去除率分别为62%~70%、60%~82%。表面流湿地在N的去除上起比较重要的作用,复合湿地系统对TN、NH4+-N的去除率分别为23.5%~46.4%、42.85%~80.38%。垂直流湿地对TP的去除效果明显好于表面流湿地,在不同配水条件下,复合湿地系统对TP的去除率达47.84~73.56%。[结论]垂直流-表面流复合人工湿地系统对污水的净化效果较好。 表面流-垂直流;复合人工湿地系统;停留时间;净化效果 X52 A 0517-6611(2008)24-10577-03StudyonPurificationEfficiencyofWastewaterbyCompositeArtificialWetlandSystemofVerticalFlowSurfaceFlowLIUWenetal (DepartmentofEnvironmentalScienceandEngineering,ZhongkaiCollegeofAgricultureandTechnology,Guangzhou,Guangdong510225)Abstract [Objective]Theaimwastoresearchonpurificationefficiencyofwastewaterbycompositeartificialwetlandsystemofverticalflow surfaceflow.[Method]Thecompositeartificialwetlandsystemthatwascombinedbysurfaceflowandverticalflowwetlandwasadoptedtotreatwithwastewater,andthepurificationefficiencyonwastewaterbythissystemwasstudiedwhenthehydraulicretentiontime(HRT)was48,24,12,and6hresp.[Result]TheremovalratesofverticalflowwetlandonCOD,BODwereover52%.TheremovalrateofcompositewetlandsystemwasraisedsomewhatalongwiththeincreaseofhydraulicretentiontimeanditsremovalratesonCOD,BODwere62%-70%and60%-82%resp.ThesurfaceflowwetlandhadanimportanteffectonNremovalandtheremovalratesofcompositewetlandsystemonTNandNH4+-Nwere23.5%-46.4%and42.85%-80.38%re-sp.TheremovaleffectofverticalflowwetlandonTPwasmuchbetterthantheoneofsurfaceflowwetland,andtheremovalrateofcompositewetlandsys-temonTPwasupto47.84%-73.56%underdifferentconditionsofwaterdistribution.[Conclusion]Thecompositeartificialwetlandsystemofsurfaceflow verticalflowhadbetterpurificationeffectonwastewater.Keyword Surfaceflow;Verticalflow;Compositeartificialwetlandssystem;Retentiontime;Purificationefficiency 、,、、。2070,[1-2]。,、、[3-4]。,,,,。,,-COD、BOD5。1 1.1 1.1.1 1。1.1.2 。4,36.7m×5.9m×1.3m,(3.2m+9m)×30m/2,2,、,。3、、,、、、。1 Fig.1Sketchmapofthetestflow1 Table1Waterqualityconditionoftestedsewagemg/LSeasonCODBOD5TNTPSpring96.55~123.33 37.65~111.9640.01~59.782.41~4.64Summer49.40~117.9524.07~48.0021.37~38.311.67~3.36Autumn68.97~112.6819.54~46.2731.42~40.212.32~3.69Winter87.27~293.5850.25~106.8446.72~66.163.51~5.09 国家基金项目(40571074);仲恺农业技术学院引进优秀人才科研启动基金项目(G2360257)。 刘雯(1977-),女,湖北仙桃人,博士,讲师,从事污水的生态修复与水污染控制方面的研究。*通讯作者。 2008-05-081.2 ,1。1.3 2。1.4 COD,BOD55,JournalofAnhuiAgri.Sci.2008,36(24):10577-10579,10581 王淼 卢瑶,NH4+-N,TN-,TP-。2 Table2 FunctionprogramofcomplexwetlandsystemWetlandsystem∥hWaterdistrib-utiontimeWet/dry∥hHydraulicretentiontime(HRT)VF111∶23VF221∶11VF341∶5VF481∶3SF1~86~48 :VF1、VF2、VF3、VF4;SF。 Note:VF1,VF2,VF3andVF4areverticalflowwetlandsystems.SFstandsfortheeffluentofsurfaceflowwetlands.2 2.1 - CODBOD52。-18,CODBOD53、4。20~160cm/d,CODBOD56020mg/L,2。34,COD、BOD52.06%,VF160.23%,COD10%~17%,BOD8%~18%,,;,,,CODBOD62.28%~70.46%、60.14%~81.88%,。2.2 - 、3,。3 CODTable3EffectsofsystemonCODremovalWetlandsystem∥hHRTNumberofsamplesMeanStandarddeviation∥%RemovalrateVF1 3055.79 10.9360.23VF1+SF48643.9122.0670.46VF23048.7310.8352.06VF2+SF24631.8517.9269.70VF33047.5814.5252.96VF3+SF12633.889.3666.51VF43046.2913.9552.53VF4+SF6637.3332.8462.28 :VF+SF-。。 Note:VF+SFstandsfortheeffluentofsewageflowingthroughverticlflow-surfaceflowsystem.Thesameasfollows.4 BODTable4EffectsofsystemonBODremovalWetlandsystem∥hHRTNumberofsamplesMeanStandarddeviation∥%RemovalrateVF1 30 24.105.7963.27VF1+SF4869.565.0381.88VF23019.857.2565.04VF2+SF24614.848.6174.77VF33014.985.5058.95VF3+SF12612.434.4666.55VF43022.845.1552.25VF4+SF6620.569.2860.14、。5,TN,11.75%~26.63%,,,23.50%~46.40%,TN。,,HRT24h,50.13%,HRT12、6h,HRT48h,,HRT24h,,TN,,,,,HRT24h,TN50.13%。6,,NH4+-N,8h,VF154.33%VF427.10%,,NH4+-N10578 安徽农业科学 2008,NH4+-N;NH4+-N,HRT6h12h,46.16%、42.85%,HRT24h48h,62.40%、80.38%,,,,NH4+-N,NH4+-N。5 TNTable5EffectsofsystemonTNremovalWetlandsystem∥hHRTNumberofsamplesMeanStandarddeviation∥%RemovalrateVF1 3036.68 2.7726.63VF1+SF48632.7615.8446.40VF23034.934.9325.07VF2+SF24624.8414.4950.13VF33033.113.4316.58VF3+SF12627.357.9337.91VF43036.035.9311.75VF4+SF6631.3613.6323.506 NH4+-NTable6EffectsofsystemonNH4+-NremovalWetlandsystem∥hHRTNumberofsamplesMeanStandarddeviation∥%RemovalrateVF1 30 18.48 7.5554.33VF1+SF4868.946.7780.38VF23021.258.7844.71VF2+SF24614.054.1462.40VF33019.107.8733.38VF3+SF12615.863.5542.85VF43017.685.1327.10VF4+SF6615.2416.0846.16 5、6,NH4+-NTN,,,NH4+-NNO3--NNO2--N,NH4+-N,,,TN。,,,、,,,,NO3--NN2N2O[5],。,,C/N,TN。7 TPTable7 EffectsofsystemonTPremovalWetlandsystem∥hHRTNumberofsamplesMeanStandarddeviation∥%RemovalrateVF1 301.900.4152.91VF1+SF4861.140.5773.56VF2301.890.5442.75VF2+SF2461.290.4461.27VF3301.980.4938.29VF3+SF1261.150.3752.11VF4302.250.4529.24VF4+SF661.801.0447.842.3 -TP TP、[6]。7,TPTP。1~8h,TP47.84%~73.56%,P。,TP,、(下转第10581页)1057936卷24期 刘雯等 垂直流-表面流复合人工湿地系统对污水的净化效果研究,,15。1 Fig.1 MonthlydistributionofcoldwaveinHezeCity2.1.4 。(2)。2 Fig.2 Distributionofcoldwaveregoin
本文标题:垂直流表面流复合人工湿地系统对污水的净化效果研究刘雯
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