温度及碳源对NPR工艺脱氮除磷效果的影响_张晓丹

温度及碳源对NPR工艺脱氮除磷效果的影响张晓丹,宋乾武*,代晋国,王之晖中国环境科学研究院工程设计中心,北京100012摘要:在NPR中试基础上研究了温度和碳源对脱氮除磷效果的影响.结果表明:低温影响污泥沉降性能,低温下有机物的去除更容易受到有机负荷的影响.温度对生物去除SS,CODCr和TP的效果影响不大,对氨氮及TN的去除效果影响比较明显,在温度由8e上升到26e的过程中,氨氮及TN去除率分别由16%和18%上升到84%和69%.控制系统在合适的温度范围内能够实现较好的脱氮除磷效果.外加碳源有助于脱氮效率的提升,20e下碳氮比(Q(C)PQ(N))由5提高至8时,TN去除率由57%提高至66%,对除磷效果影响则不明显.关键词:温度;碳源;生物处理;脱氮;除磷中图分类号:X703文献标识码:A文章编号:1001-6929(2007)04-0125-05EffectofSewageTemperatureandCarbonSourceforNitrogenandPhosphorusRemovalRateofNPRProcessZHANGXiao-dan,SONGQian-wu,DAIJin-guo,WANGZhi-huiEngineeringDesignCenterofChineseResearchAcademyofEnvironmentalSciences,Beijing100012,ChinaAbstract:Basedonpilot-scaletest,theeffectoftemperatureandcarbonsourceonnitrogenandphosphorusremovalratewasinvestigatedwithNPRprocess.Thetestresultsprovedthatlowtemperaturecouldaffectthesludgeprecipitation,andthattheremovalrateofCODCrwaseasilyaffectedbyFPMloadunderlowtemperature.TheeffectofsewagetemperatureontheremovalratesofCODCr,SSandTPwereunobvious,whilethoseofammonianitrogenandTNwereevi