1,2(1.,102617;2.,110159):,、,(CST)、、(SV)、、COD、Zeta、。,33.551μm28.979μm,2.8,;33.551μm9.435μm,2.9,;Origin8.0,。:;;;;:X7:B:1674-4829(2011)05-0005-03,,。,,。,,[1-2]。11.1,24h,SV40%,,。MD-6,:0~300℃,:±0.5℃;:900psi;:0.01Mpa;3m3/min,10。SonicsMaterials750,ENERGE:50000J,AMPL:35%。1.2,CST、、SV、、COD、Zeta。2,(、、):2011-08-12:(RHR201008362).:(1973-),,,,,:.ResearchonSettlingandDewateringCharacteristicsofSludgebyRadiationZHOUCui-hong,CAOChun-yanAbstract:Settlinganddewateringcharacteristicsofsludgefromsewagetreatmentplantbyradiationincludingmicrowaveandultrasoundwerestudied.CST,viscosity,settlingratio,watercontent,COD,Zetaelectricpotentialandmorphologicalweretested.Aftermicrowavemodification,particlesizeofsludgereducedfrom33.551μmto28.979μm,fractaldimensionwasabout2.8,andmicroscopicimageanalysisshowedthattheparticleofsludgebecamecoarsening.Afterultrasoundmodification,particlesizeofsludgereducedfrom33.551μmto9.435μm,fractaldimensionwasabout2.9,andthesmallerparticleswereobservedafterultrasound.Origin8.0softwarewasusedtoanalyzedewateringcharacteristicsofsludgeandwatercontent,andtoestablishthemodelforthepredictionofmoisturecontentofsludgeonline.Keywords:Sludge;Microwave;Ultrasound;Dewateringcharacteristics;Morphological245201110EnvironmentalScienceandTechnologyVol.24No.5Oct.20112011105/℃202.86512.69376502.900192.68915602.887932.68162702.889412.69834802.894882.69276/s02.86512.65370102.935182.63795202.960482.62823402.940152.57039602.922182.57021802.920792.653706(EPS),、、Mg2+,Fe3+Al3+。,,[3]。2.1,15℃/min50,60,70,80℃,1。,,,,,[4]。1SVx、、,CST,Zeta,COD,。2.2,10,20,40,60,80s,2。,。2SVx、、,CST、Zeta,COD,[5-6]。33.13.1.150,60,70,80℃,3。3,33.551μm,;,。,,,,,,。3.1.20,10,20,40,60,80s,,4。4,。,33.551μm,,9.435μm,,,。3.2,、,。,。,,Origin8.0,b。D=3-b,D[7]。Fractalfox2.0[8],、25、6。D,1/s01020406080SVx/%4027.5252012.515CST/s32.1182.5180198.5178.2215.4/(mPa·s)10.7565.8035.6165.2765.2245.308ρ(COD)/(mg·L-1)296762925.61562.419842130Zeta/mV-3.42-3.40-2.89-3.00-2.20-2.21/%90.5191.0589.4089.3386.8586.982/℃/μm2033.5515028.0556028.9297028.9798029.2103/s/μm033.5511012.6292010.465409.734609.682809.43542050607080SVx/%404031.2528.5723.33CST/s36.938.340.936.0037.83/(mPa·s)12.88013.98214.83611.27012.938ρ(COD)/(mg·L-1)290400429480576Zeta/mV-3.42-3.20-3.23-2.86-2.26/%87.2486.6085.5583.1283.21/℃62451270℃380℃460s,D。Fractalfox2.0,。3.3,,1~4。1,,。2~3,,4,,。41,2,4,,SVx,。4。,:Y=0.59602A+0.18513B+0.28991C+19.45685D+8.35249:Y=-3.54981A+0.32184B+0.60511C-12.31709D+129.49702:A;BSVx;C;D。1,E,Origin8.0。5、,,。(1),、,SVx、、,COD。、,,。(2)、。,2.8。33.551μm9.435μm,2.9。(3)Origin8.0,、。[][1]DEWILR,BAEYENSJ,GOUTVRINDR.Theuseofultrasonicinthetreatmentofwasteactivatedsludge[J].ChineseJournalofChemicalEngineering,2006,14(1):105-113.[2],,,.[J].,2010,23(4):69-72.[3],,.[J].,2009,35(9):180-182.[4],,.[J].,2006,26(4):459-463.[5]WOJCIECHOWSKAE.Applicationofmicrowavesforsewagesludgeconditioning[J].WaterResearch,2005,39(19):4749-4754.[6],,.[J].,2010,23(3):20-22.[7],,.[J].,2009,38(3):357-361.[8],,.[J].,2006,9(25):229-232.()7