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ID:32006454
大小:10.86 MB
页数:84页
时间:2019-01-30
《水平潜流人工湿地与垂直流人工湿地对受污染河水的处理-.研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、ThestudvofhorizontalflowconstructedwetlandandveriticalflowconstructedwetlandtotreatriverpollutionAbstratetechnologyofconstructedwetlandisanewkindofsewagecontrolledtechnologywhichdevelopedsincethe1970sandstemsfromthenaturewetlandstechnologypurifiessewagedependingont
2、hesynergisticeffectofpadding,plantsandmicroorganismwhicharestrengthenedbydesigningbyhmnanInthisexperiment,thetreatmenteffectofconstructedwetlandswithtwodifferentpaddingincludingzeoliteandslagwerecompared,thetransformationofnutrientsubstancesofconstructedwetlandswit
3、hdifferentcurrentformincludingverticalflowandhorizontalflowwerediscussedandthetreatmenteffectofconstructedwetlandsystemswithdifferentwaterlevel,concentrationofpollutantsandinfluentloadwereresearchedresidencetimedistributionswereresearchedbypulsetracermethodtoanalys
4、isthecharacteristicsofflowregimesthroughusingtheparametersofnormaldistributionfittedbyresidencetimedistrlbutionfunctionAndthemainconclusionsare;(I)TheCODremovalefficiencyofslaghorizontalflowconstructedwetlandishigherthanzeolitehorizontalflowconstructedwetland,andth
5、eremovalrateofslagverticalflowconstructedwetlandisabout88%whichishigherthan77%ofzeoliteverticalflowconstructedwetland;theCODremovalcapacityofhorizontalflowconstructedwetlandisalittlehi曲erthanverticalflowonewithsamepaddingSoCODremovalrateisinfluencedbypaddingbuthasl
6、ittlerelationshipwithcurrentformtotalphosphorus(TP)removalrateofzeoliteconstructedwetlandcanreachto75%andofslagconstructedwetlandmaintainsbelow70%:likewisetheTPremovalrateofhorizontalflowconstructedwetlandishigher.Theremovalratesofammonianitrogen(AN)inditierentcurr
7、entfolinsareclose;buttheANremovalrateofzeoliteconstructedwetlandisabout20%higherthanslagconstructedwetlandAstotheremovalrateofnitrate,thereactorflowpatternisthemaininfluencingfactorsnitrateremovalrateofhorizontalflowconstructedwetlandisabout85%whileit'sjust30%ofver
8、ticalflowconstructedwetlandItisnotobviousoftheinfluenceofdifferentpaddingtonitrateremovalrate(2)TheincreaseofinfluentconcentrationofCOD,phosphoru
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