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1、第23卷第1期哈尔滨商业大学学报(自然科学版)Vol.23No.12007年2月JournalofHarbinUniversityofCommerce(NaturalSciencesEdition)Feb.2007电渗析回用聚驱污水为配聚用水的试验研究王北福(哈尔滨工业大学市政环境工程学院,哈尔滨150090)++2+2+摘要:由于大庆油田聚驱污水的矿化度较高(约4000mg/L),其中大量的K、Na、Ca、Mg等阳离子能引起聚合物较大的黏度损失,所以聚合物只能用低矿化度清水配制.选用电渗析来降低聚驱污水的矿化度,通过小型电渗析的现场试验,证明电渗析对矿化度的去除率可
2、达90%以上,能显著改善聚驱污水的配聚性能,并且处理后的低矿化度聚驱污水能够达到或超过清水的配聚效果,从而可以代替清水用于现场配制聚合物溶液驱油;此外要使聚驱污水达到和清水一样的配聚效果,电渗析的脱3盐能耗只为0.95kW·h/m,低于购买清水的价格,是一种经济有效的降矿化度技术,适用于处理聚驱污水.关键词:电渗析;回用;聚驱污水;配聚用水;降矿化度中图分类号:X703.1文献标识码:A文章编号:1672-0946(2007)01-0022-06Experimentalstudyonelectrodialysisreusingpolymer2floodingsewag
3、easconfectingpolymerwaterWANGBei2fu(SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Asthereisaveryhighsalinity(about4000mg/L)inpolymer2floodingsewage,inwhichalotofcationssuchaspotassium,sodium,calciumandmagnesiumcancausemuchviscositylos
4、sofpolymersolution,consequentlypolymersolutionhastobeconfectedbylowTDSfreshwater.Thispaperappliedelectrodialysistodemineralizepolymer2floodingsew2ageaccordingtohighTDSrestrictingittobeconfectingpolymerwater.Thesmall2scaletestdemonstratedthatelectrodialysiscouldremovemorethan90%TDS,thuss
5、ignificantlyim2provedconfectingpolymerperformanceofpolymer2floodingsewage.TheresultinglowTDSpolymer2floodingsewagecouldattainorevenexceedtheconfectingpolymerperformanceoffreshwater;thereforeitcanbeusedtopreparepolymersolutioninsteadoffreshwaterforfloodingoilinoilfields.IfthelowTDSpolyme
6、r2floodingsewagewasthesameconfectingpol2ymerperformanceasfreshwater,itsenergyconsumptionofproductwaterwasaslowas0.953kW·h/m,muchlessthanfreshwatercost.Electrodialysisisacost2effectivedemineraliza2tiontechnologyandapplicabletotreatingpolymer2floodingproducedwater.Keywords:electrodialysis
7、(ED);reuse;polymer2floodingsewage;confectingpolymerwa2ter;demineralization聚合物驱是被大庆油田广泛应用的三次采油技术,其主要机理是通过在注入水中添加聚合物收稿日期:2006-03-20.基金项目:国家科技部科技创新基金(03C26222310528);国家863高技术发展计划(2003AA601090).作者简介:王北福(1974-),男,博士,研究方向:油田采出水回用技术.©1994-2007ChinaAcademicJournalElectronicPublishingHo
