二次微絮凝强化过滤净水工艺设计孔宇

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210008、、。TU991C1000-4602201124-0050-03DesignofWaterPurificationProcesswithSecondaryMicro-flocculationEnhancedFiltrationKONGYuNanjingMunicipalDesignandResearchInstituteCo.Ltd.Nanjing210008ChinaAbstractCombinedwiththeprojectofawaterworksinSuzhouthemechanismofsecondarymi-cro-flocculationenhancedfiltrationmaindesignparametersandessentialsareintroducedwhichpro-videsreferenceforthedesignofwaterworkswithmicro-pollutedlakewaterorreservoirwater.Keywordssecondarymicro-flocculationenhancedfiltrationcompositepre-oxidationlowturbidityrawwaterhighalgaerawwater11。。2。3、。4ζ。ζζ。、。2①。5、3~7min。PAC、1~2min。6PACPFCPFCPACPFC·05·2724201112CHINAWATER&WASTEWATERVol.27No.24Dec.2011。70.2mg/L、2~4min2min<0.1NTU。②<3NTU。8<15NTU、<50NTU。③G10~100s-1。9G/Re4/5T。360×104m3/d15×104m3/d。。0.89hm219.63hm29.68hm2。3.5kmDN1800。3.1。2008—20091。1Tab.1Rawwaterqualitymg·L-120082009123456789101112123Ⅲ*CODMn44.253.042.93.823.73.853.744.784.044.154.184.325.565.586COD9.2367.6916.548.38.110.714.218.322.016.6019.313.416.415.013.420BOD52.163.942.71.082.50.590.681.071.371.072.062.152.450.591.8640.060.960.80.4090.670.520.050.040.030.020.030.050.140.170.381.00.060.0270.0170.050.050.050.080.090.060.080.030.040.080.080.040.052.486.52.693.72.21.82.71.71.41.400.50.41.51.41.21.0*《》GB3838—2002Ⅲ。3.2。COD、TNTP、、。。→→→→/→。3.3①。———。pH。、、、、。②15×104m3/d2135.15m×18.85m·15·.watergasheat.com2724。、、90.32、42.85、15.74s-118min0.35~0.10m/s4.4m。15mm/s120min3.9m3.05m。。2。③7.5×104m3/d1mN=0.75kW。PAC10mg/L。。0.1mg/L。④15×104m3/d8105m251.1m×38.5m4.3m8.0m/h15L/m2·s3.0L/m2·s4.0~6.0L/m2·s2.1L/m2·s9min。。3.4200732007<0.5NTU100%。4/、、、、。1.—J.2005252-54.2.—J.1997166590-592.3.J.199126-11.4.J.199713517-19.5.—J.200218414-16.6.—J.200324198-100.7.J.200521234-36.8.J.200222246-48.9.J.199813167-69.E-mailnjszyky@126.com2011-05-05·25·2724.watergasheat.com

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