电凝聚过程中消除电极钝化方法的研究进展-罗亚田

电凝聚过程中消除电极钝化方法的研究进展罗亚田,曾勇辉,张列宇,熊瑛(武汉理工大学,湖北武汉430070)摘要:电凝聚法是一种对环境二次污染很小的废水处理技术,具有广阔的应用前景。但是,因其电化学过程中可溶性铝或铁阳极的钝化现象而限制了其高效低能耗应用。从电凝聚电极过程的分析入手,讨论了电极钝化的本质原因及消除电极钝化的措施,并介绍了笔者采用自行研制的交变脉冲电凝聚专用电源,彻底消除电极钝化方面的研究进展。关键词:电凝聚;水处理;交变脉冲电源中图分类号:X703文献标识码:A文章编号:1006-8759(2006)03-0004-03DEVELOPMENTOFSTUDYONTHEELIMINATIONOFPASSIVATEDELECTRODEINTHEPROCESSOFELECTRICAGGLOMERATELUOYa-tian,ZENGYong-hui,ZHANGLie-yu,XIONGYing(WuhanUniversityofTechnology,Wuhan430070,China)Abstract:“Electricagglomeratemethod”isatechnologyofwastewatertreatmentwithlittlesecondarypollutionandawideapplicationprospect.However,Itshighefficiencyandlowenergycostappli-cationislimitedasthedissolublealuminiumexitsandtheironanodeispassivatedinthecourseofelectrochemistry.Thispaperanalyzestheprocessofelectricagglomerate,discussestheessentialreasonwhyelectrodeispassivatedandprovidesthemeasureshowtoavoidelectrodebeingpassivat-ed.Atthesametime,theauthorindicatestheresearchdevelopmentofhowtousethealternatingcurrentpulseelectricalsource(home-madesp