超声波处理硅藻中细胞的完整性研究

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,(,215009):,。,a,1,a65%。a。(DIP)。,a91.82%,73.90%。,,a10%。。:;;a;:X703:A:1672-0679(2015)01-0053-05。,,[1-2]。,、、。。,,。,[3]。。,,。。11.1201431。2006,(TP0.76mg/L),。.。3cm,(4℃),1mm,,。50L。1。11.242L(d=14cm,h=17cm),,E0、E1,2,1。E0、E180g,0.6cm。1.6L,。(IKARW20digital)200r/min10min,1410min。E0,。———————————————————[]2014-09-26[](51178284;51278523);“333”;“”(2013-JNHB-022)[](1990-),,,。:(1975-),,,,,Email:ustsldp@163.com。·  ···!#$%$&&’($’#$(%’)*+!%!’&281()Vol.28No.120153JournalofSuzhouUniversityofScienceandTechnology(EngineeringandTechnology)Mar.20152015()10d。0,09:00,2h。10cm30mL,。a,、。1.322L(d=14cm,h=19cm),80g,1.6L。(IKARW20digital),200r/min15min,400r/min5min。1。,30min,1LZR4-6,。:0.5mg/L(),(150r/min)20s,(50r/min)10min,30min,a。1.4a(Chl-a)WATER-PAM(),3a(Chl-a)。(DIP)DR2800()。105℃12h,,%。、1005.5h,(Lossonignition,%)。1.5aaa,Chl-aremovalrate0=c0-c1c0×100%(1),Chl-aremovalrate00a,%;c00a,μg/L;c11a,μg/L。Chl-aremovalraten=cn-cn+1cn×100%(2),cnna,μg/L;n,1≤n≤9;cn+1n+1a,μg/L。22.1a2。a1%-2%[4]。2,,a,,。1,a,86.555μg/L,65%。,a1。,a5.124μg/L。,,,,[5]。,,[6]。,,,,,,,,。。,(),(0.2~0.4);(),(0.4~0.7)。(3)。10.6cm17cm14cm5413,,,0.6,,。,。,5,(0.4)。,,,。,,,。2.2,(45)。4,DIP,。,1,DIP(0.605mg/L0.140mg/L),,DIP,5,DIP0。,DIP。,Cyr[7],DIP,、DIP。House[8],24h,DIPDIP,24h,。,DIP。4,(a125.319μg/L),(2)(3),DIP。4,,,DIP0.61mg/L0.40mg/L。DIPDIP,DIP(DIP30%)。,,DIP0.21mg/L,0.4mg/LDIP(DIP70%)。,DIP(70%)。[9],[10]。5。,,4(7.29mg/L),(6.00mg/L)。,,。。/da/μg·L-12a345/dFv/Fm/d/mg·L-1/d/mg·L-1,:552015()2.3,,,,,,(6)。6,,(91.82%,),,(73.90%,)。,,,,,,。。6,,a65.46%(5),,a75.11%(5,a),,,a10%。,(7)。7,(0.2),(0.25~0.40)。,。3(1)a,,;(2),,90%(),。。:[1],,,.[J].,2002,18(2):29-31.[2],,,.[J].,2006,26(4):40-43.[3],,,.[J].,1999,5(5):491-495.[4],,,.L74[J].,2011,38(5):654-659.[5],,.[J].,2008,27(4):29-31.[6],.[J].,2012(20):70-70.[7]CyrH,McCabeSK,NürnbergGK.Phosphorussorptionexperimentsandthepotentialforinternalphosphorusloadinginlittoralareasofastrati-fiedlake[J].Waterresearch,2009,43(6):1654-1666.[8]HouseWA,DenisonFH,ArmitagePD.Comparisonoftheuptakeofinorganicphosphorustoasuspendedandstreambed-sediment[J].WaterResearch,1995,29(3):767-779.[9],,.———[J].,2012,29(10):41-47.6a7a/%100806020400213540.20.100.40.30.521354561EffectofsedimentdisturbanceonalgaeremovalLIWenbin,LIDapeng(SchoolofEnvironmentalScienceandEngineering,SUST,Suzhou215009,China)Abstract:Effectofsedimentdisturbanceonalgaeremovalanditsimpactonthesubsequentcoagulationandsedimentationprocesswereinvestigatedinlaboratory.Theresultsshowthatthesedimentdisturbancecouldin-creasetheChlaremoval.Afterthefirstdisturbance,theChl-aremovalwasupto65%.TheChlaconcentrationandthealgaeactivityintheoverlyingwaterundersedimentdisturbancewereobviouslyhigherthanthatinthecontrol.Inaddition,thesedimentdisturbancecouldalsopromotetheremovalofthedissolvedinorganicphospho-rus(DIP)andammonia.Afterthesedimentdisturbance,theChl-aremovalwasuptoanaverageof91.82%bycoagulationandsedimentation,whichishigherthanthatwithoutthesedimentdisturbance(averageof73.90%).TheremovalofChlabythecoagulationandsedimentationwithsedimentdisturbanceisincreasedby10%thanthatwithoutsedimentdisturbance.Itissuggestedthatthesedimentdisturbancecooperateswiththealgaeremovalofthecoagulation.Keywords:sediment;disturbance;chlorophylla;algaeremoval(:)(40)FireperformanceofconcretecolumnsstrengthenedwithanglesteelZHANGXiang,MAOXiaoyong,XULiangjin(JiangsuKeyLaboratoryofStructuralEngineering,SUST,Suzhou215011,China)Abstract:ThethermalfieldandmechanicalperformancemodelofreinforcedconcretecolumnsstrengthenedwithanglesteelwereestablishedbyusingFEAsoftwareABAQUS.TheFEAmodelwasverifiedbythefireperfor-mancetestresultsfromthereinforcedconcretecolumns.Thevalidatedmodelwasthenusedtoanalyzetheinflu-enceofrelatedfactorsonfireresistance,includingaxialcompressionratio,loadeccentricityratio,loadratioandincreasingcoefficientofcarryingcapacity.Fromtheresults,wecanseethatthefireresistanceofthestrength-enedcolumnsdecreaseswiththeincreaseofaxialcompressiveratio,loadeccentricityandloadratio.Fortheec-centriccompressioncolumns,thefireresistanceofthestrengthenedcolumnsincreaseslittlewiththeincreaseofimprovementofbearingcapacitycoefficient,buttheincreaseislimited.Underthesameloadratio,theeccentric-ityratiopresentslittleinfluenceonthefireresistancelimitoftheabove-mentionedcolumns.Keywords:strengthenedwithanglesteel;fireresistance;temperaturefield;RCcolumns(:)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,:57

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