海水反渗透系统的设计要点李宏秀

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,,((),100044)[],《》GB5749—2006。:;、,、;、、、、。[];;[]P747+.5;TU991.26[]B[]1005-829X(2009)08-0098-03Designessentialsoftheseawaterreverseosmosis(SWRO)systemLiHongxiu,FanXiaopeng,PanQi(ChinaHuadianEngineeringCo.,Ltd.,Beijing100044,China)Abstract:Facingthechallengeoffreshwatershortage,thereverseosmosissystemischosentomakepotablewatercompliedwiththeStandardsforDrinkingWaterQualityGB5749—2006.ThedesignpointsofSWROarediscussed.Waterintakemethodsneedtobeselectedbetweenopenintakeorbeachwellaccordingtotheprojectcapacityandsiteconditions.Theselectionoftheproperpretreatment(multi-mediafilterorultrafiltration)dependsontheseawaterquality,soastodecidethetreatmentprocesswhichcanremovethesuspendedsolid,minimizebiologicalfoulingandpreventscaling.TheSWROsystemhasmainlytochoosethesuitablereverseosmosismembrane,recoveryrate,ROarray,pollutionindex,correspondingenergyrecoverydevice,automaticallyflushingandchemicalcleaningsystemetc.,inplace.Keywords:seawaterdesalination;waterintakemethod;reverseosmosis,2.5%,97.5%。16(、)(),6、(、、、、、)<500m3。,<500m3。,。:()。,(),88%[1]。,。(SWRO):、、,。1,,。:。,,,。(1)。,。1.5m3m。,,、、,、、、、,。(2)。29820098IndustrialWaterTreatmentVol.29No.8Aug.,200998——2009-08,29(8)2009-08,29(8)。,,,。、。22.1,,。<5mg/L,,6~9m3/(m2·h)。,(FeCl3),FeCl3,,。,FeCl3,20min。,Fe3+,。(),。>5mg/L,,。,、、,SDI2。,/,。2.2,<40%,/。、。2.2.1CaCO3。,Stiff-Davis,CaCO3;Stiff-Davis,。,。(CaSO4、BaSO4)。,pH,H2SO4。2.2.2/(SHMP),CaCO3CaSO4。,,。2.2.3:pH,;CaCO3()。2.3,,。,1000mg/(L·h)。,(NaHSO3)。NaHSO33∶1。,,“”。,,。33.1<34m3/d4。>34m3/d8。3.2。,,,。SWRO。,35%~50%,()7%~25%。:(1)。,,,。50%。(2)。,,,,SWRO。,。TDS1。1TDS,:99——2009-08,29(8)2009-08,29(8)、,2009721—23。、、、、、。,。。()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!··1,TDS33747mg/L,15℃,13.7L/(m2·h),SWROTDS。,SWRO。3.3SWRO:14~20L/(m2·h),17~24L/(m2·h)。“”,,,,6~8。“”2。SWRO,TDS()35000mg/L,TDS<350mg/L,《》GB5749—2006。3.4。,SWRO(),。SWRO()3a。。,15%~20%,25%~30%。3.5SWRO,,。,3:,,Turbo。,90%[2]。3.6SWRO,SWRO,,。24h,0.3MPa。24h,NaHSO3。SWRO10%15%,。482.7~3.2m3/h8~10.2m3/h,0.15~0.4MPa。4(1),,;、,。(2)(、、)。,,。(3)(SWRO)、、、、、。,、、,。[][1].[J].,1998,24(1):1-3.[2]ShumwaySA.TheworkexchangerforSWROenergyrecovery[J].TheInternationalDesalination&WaterReuse,1999,8(4):1-7.[](1974—),1996,。[]2009-05-05()2100——

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