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82Vol．8No．220142ChineseJournalofEnvironmentalEngineeringFeb．20141121.2300092.230088----89%。20115—101.6m3970t106.7t。、6.25t2.1t。、。X703.1A1673-9108201402-0599-06MechanicalremovalanddewateringofcyanobacteriabloomsinChaohuLakeXiongHongbin1LiYaoyao1ZhangQiang21.SchoolofＲesourcesandEnvironmentaiEngineeringHefeiUniveristyofTechnologyHefei230009China2.AnhuiGuozhenEnvironmentProtectionSci．＆Tech．Co．Ltd．Hefei230088ChinaAbstractThecollectionofcyanobacteriabymechanicalapproachandthedewateringtechnologyofcya-nobacteriabloomsinChaohuLakewereinvestigatedwhichbasedonseveraldesignedexperimentsincludingenclosureconstructingforalgaebloomscollectionmechanicalmethodforremovalofalgaealgaeflocculationanddewateringofthealgaeslurry．Theresultsindicatethatthemechanicalremovalapproachcouldbeabettermethodintherapidlyeliminatingofalargebloomofcyanobacteriaandthedewateringtechnologywasaneffec-tivewaytodewatertheblue-greenalgaeslurry．Thehumidityofbluegreenalgaemashwithhighorganiccontentcouldbereducedby89%usingdewateringtechnology．Duringthestudyperiodatotalof970tofalgaeslurrywasremovedfromthelakewhichequaltoremove6.25tofnitrogenand2.1tofphosphorusfromthelake．ThesesuggestthatthedesignedequipmentsystemconsistofcyanobacteriacollectionanddewateringtechnologywasanapplicablemeasureforemergencycontrolofalgaebloomsinChaohuLakeandthusreducetheinternalnitrogenloadingandphosphorusloadinginlakewater．KeywordsChaohuLakealgaebloomscyanobacteriacollectioncentrifugaldewateringtechnology2009090203031022013－01－012013－03－251963～、。E-mailxhb6324@sina．com、12。66%、22%3。。10。8。4、56、7。。。820014200211351d42648m3460.83t。。、、、98.98%9。。。20115—10。1。。1.11km20.02km20.4m。2。、PVC。0.65m0.39m0.4m。90%。230m3/h3。“”、。。200m2。1.2“”1.2.11。。225L4℃。pH9.031.9×105/mL。2。3%～6%10%～15%79%～87%。3。TU-1901680nmA680。=A680-A680/A680。4。300mL。0、0.005、0.01、0.10.2g/L。TA6-410250r/min2min30r/min4min30min8h2cm0062A68020r/min30s30s、2min、10min、30min、1h1900C2cm。2。1.2.21。1。0.15g/L8h99%30min89%。11。1Fig．1Effectofdifferentdosagesonremovalratesofalgae2。。2。10min。0.15g/L10min。1.3100m200m220m×10m1.5m。2Fig．2Changesofturbidityvalueinwatercolumnafterdisturbance。0.15g/L200m2。“”10%、、30cm“”。20cm。1。1Table1ＲesultsoftestpH9.037.32mg/L0.034.13mg/L703014.9TPmg/L21.50.27Chlaμg/L1210.225.4TNmg/L3661.31SSmg/L624024CODmg/L804017.14NH3-Nmg/L0.60.3810cm。1h。。TN、TP1068N、P。pH9738%。NH3-N36.7%98%。。2。。CP-8750。3。。3Fig．3Effectofseparationwithalgaeandwaterprocess2.12.1.110m×5m×4.5m12325。。2.1.2CP-8750。CP-87500.005g/L。CP-875010min30min1/32/3。。2.1.3LWD430-N430mm3200r/min2～32r/min30m3/h2950r/min1450r/min3.7。。0.2%CP-8750。、、、PLC。2.22.2.15.0mg/L95.7%。。2.2.2、12。1。3r/minPAM4。4Fig．4Effectofdifferentdosagesonmoisturecontentofalgaemud489%～91%0＜＜3.11kg/tDS2062＞3.11kg/tDS。3.11kg/tDS。2。3.11kg/tDS5。5Fig．5Effectofsentspeedonmoisturecontentofalgaemud52r/min4r/min。13。3～4r/min。2.2.36.43g/kg2.14g/kg93%。1415。。2.2.42011520111054d1.62t89%970t106.7t。、6.25t2.1t。3。。、。0.15g/L。200m2。--、89%。、、20115—101.62t89%970t106.7t。、、6.25t2.1t。、。1BackerL．C．ImpactsofFloridaredtidesoncoastalCom-munities．HarmfulAlgae20098618-6222．“”．201131112968-2977JiaX．H．FormationofcyanobacterialbloomsinLakeCha-ohuandthephotosynthesisofdominantspecieshypothesis．ActaEcologicaSinica201131112968-2977inChi-nese3．．2005253589-595KongF．X．Hypothesisoncyanobacteriabloom-formingmechanisminlargeshalloweutrophiclakes．ActaEcologicaSinica2005253589-595inChinese4．．2010108154-1553068SongF．Y．LangL．WuJ．Theresearchprogressofcya-nobacterialbloomstreatmenttechnologyinourtypicalshal-lowlakes．ChinaWaterTransport2010108154-155inChinese5．pH．200016568-74LüQ．Z．ThroughCoppersulfateandchangingthepHtoremovethealgae．ChinaWater＆Wasterwater200016568-74inChinese6．．2004345104-108PeiH．Y．HuW．Ｒ．DingG．J．etal．ThecharacteristicresearchofChlorinedioxidetokillalgae．ShandongUniver-sityEngineeringScience2004345104-108inChinese7．．20072715-12QinB．Q．LiuZ．W．EcologicalengineeringexperimentonwaterpurificationindrinkingwatersourceinMeiliangBayLakeTaihu．ActaScientiaeCircumstantae20072715-12inChinese8．．2004282131-135ShenY．W．LiuY．D．WuG．Q．etal．Mechanical-removalofheavycyanobacterialbloominthehypereutroph-icLakeDianchi．ActaHydrobiologicaSinica2004282131-135inChinese9．．200928654-57ShiC．Q．HuangG．T．ZhouD．etal．Algaeremovalef-fectbymagnetization．WaterPurificationTechnology200928654-57inChinese10．．20062251-4LiuH．L．WangD．S．WangM．etal．Ｒequirementforhydrodynamicconditionsinenhancedcoagulation．ChinaWater＆Wasterwater20062251-4inChinese11．．20052571554-1561ZhaoM．X．HanB．P．Analysisoffactorsaffectingcya-nobacteriabloominatropicalreserviorTangxiＲeservoirChina．ActaEcologicaSinica20052571554-1561inChinese12．．2004896-99WangS．Z．InvestigateofthefactorsthateffecttheDe-cantersdehydration．Water＆Wasterwater2004896-99inChinese13．．2008326-27MengY．TaoX．H．FengS．L．etal．Horizontalspiralsubsidencecentrifugeparametersdesigninsoymilkpro-duction．MachineryDesign＆Manufacture2008326-27inChinese14．．200318462-63JiangＲ．B．Bioorganicfertilizeranditsapplicationpros-pects．Phosphate＆CompoundFertilizer200318462-63inChinese15．．200828535-38SunS．Z．GaoT．Ｒ．Technologicalprocessimprovementoforganicfertilizermadeofbl