辐射技术强化污泥沉降与脱水特性的实验研究周翠红

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