反渗透技术用于高矿化度矿井水处理的研究杨慧敏

，,，，，[1-2]。，。、、，。，，，。、、、，[3-5]。（RO），RO。11.1ROROCAB（）CPA（）。，CAB，、、。，、，CPA。CABCPA：，99%，CAB95%～98%，；，，；，；pH（CPA：4～10，CAB：5～8），，（CPA45℃，CAB35℃），。，，CPA。CPA，，CPA2.0MPa，5～40℃。500L·h-1，，-0.20。。1.2RO1。、、、，、、。，，（，100083）：，CPA（）。：24d，，Ca2+、Cl-、SO42-、Mg2+98%、94%、98%、95%，，；（RO），，。：；；；：TQ028.8；X752：A：1000-3770(2009)10-082-04：2009-03-31：（863）（2008AA06z305）；（50678172）（107022）：（1974－），，，；：13699195590；E-mail：[e-mail]1ROFig.1ExperimentalflowchartofROset-upRO3510200910TECHNOLOGYOFWATERTREATMENTVol.35No.10Oct.,200982DOI:10.16796/j.cnki.1000-3770.2009.10.020（PLC）。，，5μm。1.3，。，，。500L·h-1，2.0MPa，。。1。[6]。22.12，。Ca2+、Cl-、SO42-、、Mg2+98.2%、94.9%、98.2%、95.9%、95.8%；1.2～3.3mg·L-1（Ca2+）、20.2～75.3mg·L-1（Cl-）、10.6～40.3mg·L-1（SO42-）、0.1～0.27（）1.6～4.5mg·L-1（Mg2+），。，2，SO42-、Ca2+、Mg2+、Cl-，，。2.23，。3，，，，Mg2+、Cl-、Ca2+、SO42-。，Ca2+、Cl-、SO42-、、Mg2+98.6%、95.9%、98.4%、98.2%、98.6；2.4～8.6mg·L-1（Ca2+）、32.4～109.4mg·L-1（Cl-）、12.5～59.6mg·L-1（SO42-）、0.1～0.4（）0.4～0.9mg·L-1（Mg2+），。3，，，，。2.3RO，，，。，，，，。RO（、、），。，，。。，，。RO，RO，，。2.3.10.2%RO0.2%NaOH48121620249596979899100/%/dCa2+Cl-SO42-Mg2+3RO（）Fig.3Removaleffectsofionsinthesimulatedminewater(highconcentrations)481216202490919293949596979899100/%/dCa2+Cl-SO42-Mg2+2RO（）Fig.2Removaleffectsofionsinthesimulatedminewater(lowconcentrations)ρ(Ca2+)/mg·L-1ρ(Cl-)/mg·L-1ρ(SO42-)/mg·L-1(CaCO3)/mg·L-1ρ(Mg2+)/mg·L-174.4～174.8186.0～531.0611.6～1557.0816.1～2305653.2～1863.61064.3～32753.27～7.65.96～17.133.8～77.531.4～81.81Table1qualityofsimulatedminewater，83RO，RO（SEM）4。4，NaOH。（EDX），NaOH。NaOH，，。2.3.20.2%（HCl）RO0.2%HClRO，SEM5。5，，，，、、。EDXCa，Si，，。，Ca。2.3.2（0.2%HCl）（0.2%NaOH）RORO，0.2%HCl，0.2%NaOH，SEM6。6，，，。。EDX，，，。，RO。2.3.4（0.2%NaOH）（0.2%HCl）RO0.2%NaOHRO，0.2%HCl，SEM7。7，10000，RO，，。EDX，EDX，RO，，。，，RO，，；，RO，。3，CPA7ROSEM（10000）Fig.7SEMphotosofROpollutedmembraneafterbeingwashedbyalkalifirstlyandlaterbyacid(10000times)40.2%NaOHROSEM（250）Fig.4SEMphotosofROpollutedmembranewashedby0.2%NaOHsolution(250times)5（a）2505（b）100050.2%HClROSEMFig.5SEMphotosofROpollutedmembranewashedby0.2%HClsolution6ROSEM（500）Fig.6SEMphotosofROpollutedmembraneafterbeingwashedbyacidfirstlyandlaterbyalkali(500times)351084(72)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!APPLICATIONOFREVERSEOSMOSISTECHNOLOGYINTHETREATMENTOFHIGHLYMINERALIZEDMINEWATERYangHuimin,HeXuwen,HeYong（SchoolofChemicalandEnvironmentEngineering,ChinaUniversityofMining&Technology,Beijing100083,China）Abstract:Thereverseosmosis(RO)technologywasadoptedtotreatminewaterwithhighsalinity，inwhichtheremovalofvariousionsintheminewaterbytheusageofCPA(CompositePolyamide)membranewereinvestigated.Theresultsshowedthat:duringthe24dofsystemsoperation,thetreatmenteffectofROprocessintreatingthecoalminewaterwasgood,theaverageremovalratesofvariousionscouldreachabove98%(Ca2+),above94%(Cl-),above98%(SO42-)andabove95%(Mg2+)respectively,thesystemeffluentqualityisstableandthetesteditemsoftheeffluentmetthenationaldrinkingwaterstandards;andthepollutioncharacteristicsofROmembranewassummarizedaccordingtothestaticcleaningofthepollutedmembrane,finallytheoptimalwashingprocesswasdetermined,thatiswashingtheROmembranefirstlybyalkaliandlaterbyacid.Keywords：reverseosmosis(RO);coalminewater;highsalinity;ROmembrane，，。98%（Ca2+）、94%（Cl-）、98%（SO42-）、95%（）95%（Mg2+）。。，。，RO，，，；，RO，，。：[1],.[J].,2008,34(8):194-195.[2].[J].,2005(1):49-51.[3],,,.[J].,2002,31(6):618-621.[4]KalisK.Evaluationofcommercialultrafiltrationsystemsfortreatingautomotiveoilywastewater[J].WaterEnviromentRe-search,1998,70(7):1280-1289.[5]GraafV.ExperimentsonmembranefiltrationofeffluentatwastewatertreatmentplantsintheNetherlands[J].WatSciTech.,1999,39(5):129-136.[6].[M].4.:,2002:254-286.TOTALNITROGENREMOVALEFFICIENCYOFIMPROVEDCONSTRUCTEDRAPIDINFILTRATIONSYSTEMFanXingjian1,2,FuYongsheng1,LiuFang3,XueDan1,XuWenlai1（1.SchoolofEnvironmentalEngineeringSouthwestJiaotongUniversity,Chengdu610031,China;2.JiangsuEastChinaGeologicalConstructionGroupCO.,LTD,Nanjing210007,China;3.SichuanEnvironmentalProtectionTechnologyEngineeringCO.,LTD,Chengdu610041,China）Abstract:Takingimprovedconstructedrapidinfiltrationsystemasexperimentaldevice,schoolyarddomesticsewageasobject,themethodsofaddingsub-sectionintakeandoverflowpoolwasusedtostudythetotalnitrogenremovalefficiencyofimprovedconstructedrapidinfiltration.Theresultsshowedthatthesubsectionintakesettingonthedenitrificationsegmentissuitable.Ontheonehand,itcanpromotetherateofdenitrificationreaction;ontheotherhand,CODcanbeeffectivelydegraded.Thetotalnitrogenremovalefficiencyof2:1isbetterthan1:1,itcanreach64.8percent,andtheoutflowcanmeetnationaldischargestandard.Theheightofoverflowpoolhaslittleinfluenceontotalnitrogenremovalefficiency.Wheneconomyisconsidered,theover-flowpool'sheightof30cmcanmeettherequirement.Keywords：improvedconstructedrapidinfiltrationsystem;totalnitrogen;subsectionintake;intakeratio;overflowpool，85