大流量全膜法水处理技术在电厂中的应用姚勇

110　　姚　勇上海奉贤燃机发电有限公司,上海　201403[　　　]　通过大流量全膜法水处理技术在某燃机电厂的成功运行实践,介绍了全膜法水处理系统的控制特点及调试经验并针对存在的问题提出了改进措施。实践表明,全膜法水处理工艺的最大优点是环境友好、系统简单、连续制水、占地面积少且产水水质好,除盐水电导率仅为0.0625μS/cm,硅酸根为2μg/L。[　　]　电厂;水处理;全膜法;微滤;超滤;反渗透;电去离子(EDI)[]　TM621.8[]　B[]　1002-3364(2009)08-0110-03[DOI]　10.3969/j.issn.1002-3364.2009.08.110APPLICATIONOFLARGEFLOWRATEFULLFILMWATERTREATMENTTECHNOLOGYINPOWERPLANTSYAOYongShanghaiFengxianGasTurbinePowerGenerationCoLtd,Shanghai201403,PRCAbstract:Throughsuccessfuloperationpracticeoflargeflowratefull-filmwatertreatmenttechnolo-gyinonegasturbinepowerplant,thecontrolfeaturesanddebuggingexperienceoffull-filmwatertreatmentsystemhavebeenpresented.Practiceshowsthatthegreatestadvantagesoffull-filmwatertreatmenttechnologyareasfollows:friendlytoenvironment,smallareaofoccupation,andgoodqualityofoutputwater.Theconductivityofdesaltedwaterisonly0.0625μs/cm,silicateradicalbeing2μg/L.Directingagainsttheexistingproblems,somecountermeasureshavebeenputforward.Keywords:powerplant;watertreatment;full-filmmethod;micro-filtering;ultra-filtering;reverseosmosis;electricaldeionization(EDI):　2009-02-18:　(1969-),,,1989,,。E-mail:[e-mail]　　、、(EDI)4。,。1　-GE9E,Q1097/555-181(31)-6.1(0.63)/532(256)111　　(、)。181.5t/h,6.1MPa;30.8t/h,0.63MPa。LZN55-5.60/0.65。,,62t/h。:()()++EDI,,EDI。1(:)。1　/t·h-1952ARKAL902:76;:652:EDI622GE2　1。,20℃((100μm),),。、、、、。。,,,5μm。,。,,,。,。EDIEDI,EDI,。、EDI,、EDI。1　,。,EDI,。4:/、、(PLC)(SCADA)。3　、(1),,(PAC),3mg/L。,PAC,,30min1,401。,15,0.08MPa,。,,,5NTU,,。,,1。(2)FILMTECBW30LE-440,,0.01mg/L。,(ORP)。,NaHSO3,15%,。ORP≤150mV,1,3min2;ORP≥210mV,1,3min2;ORP≥230mV,3min,,112　　。(3)pH8,,,;pH8,,、H2SiO4SiO2-3,,,pH8.0。,pH,,SiO2-3,,EDI。,pH6.8,,EDI0.0625μS/cm0.0770μS/cm,,,。(4),,。50μS/cm,。,,。,,pH11,pH,。,,pH,pH9。4　,EDI,“+,、。、、、。+EDI,(++),1000h,100t。,,,。,40%,1/3。,0.0625μS/cm,SiO2-32μg/L,。,EDIH2OH+OH-,pH,。,,H2O,,EDI。,pH,EDIpH。pH,CO2CO2-3HCO-3。,EDI,EDICO2。,,EDI,EDI,95%,EDI,。,Ca2+、Mg2+,EDI,EDI,EDI。[　　　][1]　.[M].:,2008.[2]　.[M].,1995.[3]　().[Z].