壬基酚聚氧乙烯醚及其小分子中间降解产物的水环境分布和生物降解研究

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1、AbstractAbstractNonylphenolp01ye_【110xylates(NPnEO)areoneclaSsof谢delyusednon-ionicsurfact趾ts．onceNPnEOareprcsentinwaterbodiesasaresultofdischargeofwastewaters，血eyarepronetodegradeintoreladvestablesmallmetabolites，suchasnonylphenolO旧)，nonylphen01monoetlloxylate(NPlEO)，nonylphenold

2、iethoxylate(NP2EO)，nonylphenoxyaceticacid(NPlEc)aIldnonylphenoxyemoxyaceticacid(NP2EC)．ThesesmallNPnEOmetabolitesaremoretoxicand口ersistentt11antheirparemsubstancesa11dactasendoc血1edisruptors．T11esmallNPnEOmetab01itesare谢despreadinaquaticenvimIⅢ1entsaroundt}leworld，whereasdatainCh

3、inaisscarce．M0reoVer，itisstilIuncenainaboutmebiodegrad砒ionabilhya11dthemaindegradationrouteofNPnEOandmeirsmallme诅bolites，whichiscmcialforco玎ectlyassessingtheirenvironmen_calrisk_Hence，researchonde掣amionofNPnEOa11dtheirsmallme切bolitesisstillahotintematio蒯researchingto啦IIlordertoco

4、rrectlyassesstheenvironmentalriska工ldhealthriskofNPnEOandtheirsmallmetab01ites，itisvery油portanttounderstandtheiroccurrence，movementandbiode掣adationinenviroment．ht11isarticle，协eoccurrenceofNPnEOandtheirsm丑11metabolitesinseveralaqua_cicenvironmentsinTianjinandthebiodegradationof血es

5、mallNPnEOmetabolitesinsedimentsa11damiXmicmbialstrains’cult【lrewerestudied．Theresultsareasfollowed=(1)Analysismethodsofllighpe廊manceliquidchromatogr印hywithnuorescencedetectorandhighpedbnnaIlceliqllidchromato铲印hyandmassspec仃ome虹yfofdeteminationofNPnEO，NPandNPl—2ECweresetup．Moreove

6、r，s01idphaseex缸_action趾dSoxhletextractionmethodsforNP，NPnEOa11dNPl—2ECi11enV砷11Inerltals锄plesweredevel叩ed．Thesememodscouldsatis毋t11ea11alysisoflaboratoryandelwiroIllncntals锄ples．(2)ThelevelsofNPnEOa11dmeirsmallmetab01itesiIl觚otypicalsewage订eatnlemplantsweremoderate，andmeremovalra

7、_cesofshort—chainNPnEOwerelowSmallmetabolitesofNPnEOweredetectedin蹦nkillgwatersourcesofTianj沁HaiheIIIAbstract砌verandBohaiSeawimmoderateconcen扛ation．NP2E0wasthemostabundant1nalls锄ples．TheoccurrenceofNPl—2ECwasassociatedwithsalini啦(3)Aerobicandanaerobicbatchexperimentswereperfb衄edt

8、ostudythebiodegradationofNPnEO肌dNPinsedi