7种典型挺水植物净化生活污水中氮磷的研究杨林

20113330616－0621http//xuebao．jx[e-mail]7121*311．3300452．3302003．3300457。、、、P＜0．05P＜0．050．9。60%～80%。X173A1000－2286201103－0616－06StudiesonSevenTypicalEmergingPlantsAbsorbingNitrogenandPhosphorusinConstructedWetlandsYANGLin1WUBin2LAIFa-ying1*ZHANGJun3GAOYong-sheng11．CollegeofLandResourcesandEnvironmentJAUNanchang330045China2．NanchangCountyEnvironmentalProtectionAgencyNanchang330200China3．CollegeofNanchangBusinessJAUNan-chang330045ChinaAbstractEmergingplantsarethemaintypesofplantsfortheconstructedwetlandvegetationsystem．Inthistestseventypicalemergingplantswhichhaveacertainlandscapeeffectandeconomicvalueareselectedtostudytheirdegradationaccumulationanddistributionofnitrogenandphosphorusinconstructedwetlandswhichprovidesatheoreticalbackboneforthepromotionofconstructedwetlands．TheexperimentresultsshowedthatCannaindicaIrispseudacorusVetiveriazizanoidesandSchoenoplectuslacustrisallhaveastrongdegradationabilityofnitrogenandphosphorusandtheirdegradationofnitrogenandphosphorushasalinearcorrelationwithHRTafteraperiodofadaptationtoconstructedwetlandsandthecorrelationcoefficientsarelargerthan0．9．Theseindicatethattheyhaveastableabsorptionofnitrogenandphosphorus．Thetotalplantuptakeofnitrogenandphosphorusaccountsfor60%to80%oftheoverallnutrientremovalinconstructedwet-lands．Keywordswetlandsemergingplantlifecyclenitrogenandphosphorus2011－12－082011－03－24“”2008BAD96B041982—[e-mail]*[e-mail]。371Fig．1Screeningtestplansplant1。、2－4、、、。567。N、P8－10。、11－12。、13、。11．1Coixlacryma－jobi、Vetiveriazizanoides、Acoruscalamus、Cannaindi-ca、Zizanialatifolia、Phragmitesaustralis、Irispseudacorus。1．27125cm、50cm25cm10、2。CODcr125．01～81．80mg/L10．9－9．1mg/L1．01～0．58mg/L80L32d1TP、TN。。32。1．390℃。H2SO4-H2O214。1．4PAPA=PB×PC1PBPCRR=∑3i=1ICi－OCi×Qi∑3i=1ICi×Qi2·716·33ICiOCiiQii。SPSS17．0。22．110～10d210～20d320～30d、、、、、。1。1Tab．1ThegeneralvaluationofdifferentplantsduringwatercultivatingexperimentPlantspeciesPlantgrowingRootStalkLeafCoixlacryma－jobi+++++Vetiveriazizanoides++++++Acoruscalamus+++Cannaindica++++++Zizanialatifolia－－－Phragmitesaustralis－－－Irispseudacorus+++++++++－。++expressvigorous+expressmedia－expressweak．2．2223．4～437．1g437．1g17．5gP＜0．05。2．383～24．550g0．867～14．417g。。56．02%19．47%30%～43%。2Tab．2ThebiomasschangeofdifferentplantsduringwatercultivatingexperimentPlantspecies/gWeightofvegetableatinitial/gWeightofvegetableaffina/gWeightofvegetable/gDryweightofvegetableaffineUndergroundAbovegroundCoixlacryma－jobi147．8556．2248．4*24．456．5Vetiveriazizanoides380．4783．6413．2*67．6147．3Acoruscalamus203．5279．375．8*15．332．4Cannaindica521．3958．4437．1*37．554．1Zizanialatifolia156．3173．817．5*10．714．3Phragmitesaustralis36．259．623．4*5．221．5Irispseudacorus645．0913．2268．2*86．567．9*5%。*significantat0．05level．·816·3723Fig．2Totalnitrogenremovalindomesticsewageduringthereofdifferentplants33Fig．3Totalphosphorusremovalinsewageduringthreeofdifferentplants。、、。2．3TN。TN2。1TN。P＞0．052、、、P＜0．05TNr＞0．943P＜0．05TN90．70%72．39%TNr0．9710．997、0．9。2．4TP3TP3。1P＜0．052TPTPr0．9、、86．49%、80．99%79．99%3P＜0．05TPTPr0．9、、29．70%、36．65%44．00%、、、86．39%、83．99%、79．59%67．60%。7。·916·332．5795．048～2636．5728．789～345．073mg321．038～1778．80233．178～225．311mg3P＜0．05。、、、。60%～85%60%～80%。3Tab．3NitrogenandphosphoruscontentanddistributionofplantsafterwatercultivatingexperimentPlantspecies/mgPlantnitrogenUndergroundAboveground/mgPlantphosphorusUndergroundAbovegroundCoixlacryma－jobi553．5971104．848*52．966177．217*Vetiveriazizanoides902．4851636．513*97．098158．382*Acoruscalamus524．054822．255*68．921112．659*Cannaindica744．0351277．973*70．120136．075*Zizanialatifolia193．649321．038*25．52646．063*Phragmitesaustralis95．048436．142*8．78933．178*Irispseudacorus2636．5721778．802*345．037225．611**5%。*significantat0．05level．2．64Tab．4NitrogenandphosphoruscontentanddistributionofplantsafterwatercultivatingexperimentPlantspecies/gAccumulationofnitrogenandphosphorusNitrogenPhosphorus/%NitrogenandphosphorusremovalefficiencyNitrogenremovalefficiencyPhosphorusremovalefficiencyCoixlacryma－jobi979．204135．90857．0557．93Vetiveriazizanoides1149．918112．92273．8779．01Acoruscalamus365．37849．27937．7045．37Cannaindica1344．137137．06943．6663．82Zizanialatifolia51．8247．20827．2036．12Phragmitesaustralis208．55416．47724．3847．39Irispseudacorus1006．659130．10268．7975．20r=0．7756P＜0．05r=0．8204P＜0．054、。33．115·026·37①437．1g17．5g②90．70%72．39%r0．971③TPr0．9、、、86．39%、83．99%、79．59%67．60%④795．048～2636．572mg8．789～345．073mg60%～85%60%～80%。3．2P＜0．05。P＜0．05。1．J．200511-6．2．、、M．2004200-256．3．J．200524271-75．4．J．20032687-90．5．J．2003236-40．6．、J．2006252218-221．7．D．20055．8KantawSPilailaSTanapiyawWetsetal．Wastewatertreatmentbytropicalplantsinvertical－flowconstructedwetlandsJ．WaterSciTechnol1999403173-178．9KoottatepT．RoleofplantuptakeonnitrogenremovalinconstructedwetlandslocatedinthetropicsJ．WaterSciTechnol199736121-8．10LundLJHorneAJWilliamsAE．Estimatingdenitrificationinalargeconstructedwetlandusingstablenitrogenisotopera-tiosJ．EcolEng20001467-76．11BrijG．Naturalandconstructedwetlandsforwastewatertreatment．potentialandpro