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1、AbstractⅣwaters.WhenremovalrateforNH3-Nis27.07%~37.24%,theordeisCanna
>Zizania>Coixlacryma-jobi>Cyperusalternifolius,effluentoffourwetlandsmeetsthe
secondaryclasscriteriaspecifiedinGB18918-2002.WhenremovalrateforTNis
44.89%~56.09%,theordesisCanna>Cyperusalternifolius>Coixlacryma-jobi>Zizani
2、a,
effluentoffourwetlandsmeetsthefirstclassAcriteriaspecifiedinGB18918-2002.When
removalrateforTPis47.50%~76.00%,theordeisZizania>Canna>Cyperusalternifolius
>Coixlacryma-jobi,effluentofZizaniawetlandsmeetsthefirstclassBcriteriaspecifiedin
GB18918-2002andtheotherwetlandsmeetsthesecondaryclas
3、scriteriaspecifiedinGB
18918-2002.(4)Seasonhasdgreatinfluenceonremovalrateandeffulent.Effluentinsummerwas
betterthaninwinner.ThereisgoodremovalrateinwinnerinJiangxi.Whenremovalrateof
CODcrreaches91.79%,effulentmeetsthecase-Ⅳwatersofsurfacewaterquality
(GB3838-2002)standard.Whenremovalrateof
4、NH3-Nreaches44.90%,effulentmeetsthe
firstclassBcriteriaspecifiedinGB18918-2002.WhenremovalrateofTNreaches40.77%,
effulentmeetsthefirstclassAcriteriaspecifiedinGB18918-2002.WhenremovalrateofTP
reaches49.50%,effulentmeetsthesecondaryclasscriteriaspecifiedinGB18918-2002.
(5)Thisexperimentshows
5、:Firstorderkineticequationcanwellsimulateremovallawof
CODcr,NH3-N,TNandTPfordomesticsewageinJiangxiProvince.Ithasacertainreferent
valuefordesignofsubsurfaceflowconstructedwetlandsinJiangxiProvince.Degradation
constantkofCODcr,NH3-N,TNandTPinCannawetlandsis0.3677,0.1652,0.1889,0.2760.Degrada
6、tionconstantkofCODcr,NH3-N,TNandTPinCoixlacryma-jobiwetlands
is0.5172,0.1227,0.1637,0.1833.DegradationconstantkofCODcr,NH3-N,TNandTPin
Zizaniawetlandsis0.3994,0.2236,0.1227,0.4479.DegradationconstantkofCODcr,
NH3-N,TNandTPinCyperusalternifoliuswetlandsis0.2748,0.1724,0.2657,0.2172.
Theconcl
7、usionofpositiveresearchmeansthatusingsubsurfaceflowconstructed
wetlandsinJiangxicanreachbettereffectfornitrogenandphosphorus.Thisresearchpaper
drawsthelawofhydraulicloadingrate,pollutionloadingrate,plantsselection,seasonal
variationonnitrogenandphosphoru
