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《《南水北调与水利科技》:南水北调东线截污导流尾水综合处置方案研究(阮晓红 倪利晓 万清华 赵振华)(摘要)》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、《南水北调与水利科技》:南水北调东线截污导流尾水综合处置方案研究(阮晓红倪利晓万清华赵振华)(摘要) 摘要:为满足国家对南水北调东线工程江苏段出省水质要求,徐州市和宿迁市的处理尾水通过尾水导流工程经新沂河入黄海,导流入新沂河尾水量41万t/d,COD污染负荷达14965t/a,使现状劣Ⅴ类水体的新沂河更加不堪重负,导致新沂河沿线至入海口附近近海水域的生态环境进一步恶化。2550m2人工湿地中试工程实验结果表明,湿地床技术能有效的净化污染河水,对COD的去除率可达60%—70%,氨氮的去除率达75%—85%;水葱、春兰等植物具有较强的耐淹特性。
2、根据充分利用当地资源、以最小的建设投资和运行费用达到工程目标的原则,利用新沂河束水型行洪河道具有大量滩地资源特征,优化布置人工湿地床进行新沂河污染河水处置工程方案的设计。
关键词:南水北调东线工程;人工湿地;尾水导流;工程方案设计
中图分类号:X703文献标识码:A文章编号:1672-168301-0081-04
IntegratedTreatmentofChannelizedTailWateroftheEasternRouteoftheSouth-to-NorthWaterTransferProject
RUANXiao-ho
3、nga,b,NILi-xiaoa,b,WANQing-huaa,b,ZHAOZhen-huaa,b
(a.StateKeyLaboratoryforHydrology-WaterResourcesHydraulicEngineering,HohaiUniversity,Nanjing210098,China;b.CollegeofEnvironmentalScienceandEngineering,HohaiUniversity,Nanjing210098,China)
Abstract:Toensurethewaterqualityo
4、ftheoutflowfromJiangsuSectionoftheSouth-to-NorthWaterTransferProject,treatedwastewaterfromtheXuzhouCityandSuqianCityisnotallowedtodischargeintotheGreatCanal,butcanbetransferredtotheYellowSeaviachannelizationproject.ThevolumeoftailwaterdischargedtotheXinyyiRiverviachannelizat
5、ionprojectis410,000t/d,andthepollutantloadis14965t/a.ThepresentwaterqualityoftheXinyiRiverisworsethanChassV,thedischargeoftailwaterevenworsenstheriver,resultinginfurtherdegradationofecosystemalongtheXinyiRiverandtheestuary.Pilot-scaleexperimentsofconstructedwatlandwithareaof
6、2550m2showthatwetlandcanpurifypollutedriverwater,theremovalefficienciesofCODandNH3-Nare60%-70%and75%-85%respectively.ThemacrophytessuchasScirpuslocustris,Gymbidiumgoeringiietc.haverelativelystrongenduranceofflood.FullscaleconstructedwetlandtotreatpollutedXinyiRiverwaterisano
7、ptimaldesigntousetheabundantbottomlandresourcesoftheriver.
Keywords:EasternRouteofSouth-to-NorthWaterTransferProject;constructedwetland;channelizationoftailwater;fullscaleconstructedwetlandprojectdesign
参考文献:
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[3]吴建强,阮晓红,王雪.人工湿地中