膜生物反应器处理垃圾渗沥液硝化特性的研究_熊小京

膜生物反应器处理垃圾渗沥液硝化特性的研究*熊小京,简海霞,冯吉吉文(厦门大学环境科学研究中心,福建厦门361005)摘要:采用好氧膜生物反应器工艺,以垃圾渗沥液为处理对象,用苯酚及氨氮预驯化的活性污泥启动,在连续进水操作条件下,系统考察该工艺在处理垃圾渗沥液中进水pH和C/N对其硝化特性的影响。结果表明:进水pH对硝化菌活性的影响很明显,当pH为8.0时,氨氮去除率最高,平均在88%左右;进水C/N在4∶1～6∶1时,氨氮去除率与总氮去除率可分别保持在75%～80%和10%～20%,其中75%以上的氨氮转化为硝氮,亚硝氮积累量很小。关键词:垃圾渗沥液;好氧膜生物反应器;硝化特性中图分类号:X703文献标识码:A文章编号:1005-8206(2007)05-0012-04StudyonNitrificationBehaviorinWasteLeachateTreatmentbyMembraneBioreactorXiongXiaojing,JianHaixia,FengZhewen(EnvironmentalScienceResearchCenter,XiamenUniversity,FujianXiamen361005)Abstract:TheinfluenceofvariousinfluentpHandC/Nonnitrificationbehaviorsinwasteleachatetreatmentwassystematicallyinvestigatedbyusingaerobicmembranebioreactorprocess.TheactivatedsludgewasacclimatedinitiallybyphenolandNH3-N.Theexperimentwasoperatedunderconditionofcontinuousflow.TheresultsshowedthatnitrifieractivitywasaffectedsignificantlybyinfluentpH,theaverageremovalrateofNH3-Nwasupto88%attheinfluentpHof8.0.WhentheinfluentC/Nwasinrangeof4∶1-6∶1,theremovalratesofNH3-NandTNmaintain