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《SBR双颗粒污泥系统脱氮除磷性能研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第32卷第7期环境科学学报Vo1.32.No.72012年7月ActaScientiaeCircumstantiaeJu1.,2012刘旭,王淑茕,彭永臻,等.2012.SBR双颗粒污泥系统脱氮除磷性能研究[J].环境科学学报,32(7):1537—1541LiuX,WangSY,PengYZ,eta1.2012.Characteristicsofnitrogenandphosphorusremovalbyusingtwogranularsludgeprocessinsequencingbatchreactors[J].ActaScientiaeC
2、ircumstantiae,32(7):1537—1541SBR双颗粒污泥系统脱氮除磷性能研究刘旭,王淑莹,彭永臻,吴蕾,朱云鹏北京工业大学环境与能源工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124收稿日期:2011—09-10修回日期:2011—11—04录用日期:2011—11—17摘要:以模拟废水为研究对象,对SBR双颗粒污泥系统的脱氮除磷性能进行了考察.试验结果表明,AN双颗粒污泥系统能使硝化菌和聚磷菌分别在各自最佳的环境中生长,有利于系统脱氮除磷的稳定和高效运行,可控制性也得到了提高.在COD为300mg·L条件下,系
3、统对COD的平均去除率达到78.8%,大部分COD被聚磷菌用来合成PHA;当溶解氧控制在3.55~4.90mg·L和5.60—6.60mg·L之间时,硝化SBR对氨氮的去除率分别为87.0%和94.5%.除磷SBR仅设置缺氧段时,磷去除率为72%;增设后曝气段后,磷去除率增至85%.NO/一N(NOr—N+NO;一N)的去除主要发生在缺氧段,在反硝化除磷时作为电予受体被去除,平均去除率为90.6%关键词:反硝化除磷;反硝化除磷菌;双污泥工艺;好氧颗粒污泥;SBR文章编号:02532468(2012)07.1537.05中图分类号:X703文献标识码
4、:ACharacteristicsofnitrogenandphosphorusremovalbyusingtwogranularsludgeprocessinsequencingbatchreactorsLIUXu,WANGShuying,PENGYongzhen,WULei,ZHUYunpengSchoolofEnvironmentandEnergyEngineering,BeijingUniversityofTechnology,KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvir
5、onmentalRecoveryEngineering,Beijing100124Received10September2011:receivedinrevisedform4November2011accepted17November2011Abstract:Byusingsyntheticwastewater,thecharacteristicsofdenitrifyingphosphorusremovalprocessinalab-scaletwo-sludgeanaerobie/anoxic/nitrificationSBR(A2NSBR)a
6、erobicgranularsystemwasstudied.Theresultshowedthatthetwo—sludgesystemensuredthedenitrifyinganddephosphorusbacteriatogrowattheiroptimalstates,whichwasfavorableforthestabilityofnitrogenandphosphorusremovaleficiency.WhentheinfluentCODwascontrolledat300mg·L~.theCODremovalefficienc
7、ywas78.8%.MostoftheCODwasstoredasPHAinpolyphosphateaccumulatingorganisms(PAOs).WhenDOwascontrolledat3.55~4.90g·L~and5.6—6.6g‘L‘。innitrificationSBR,theNH;一Nremovaleficiencyreached87.0%and945%.respectively,Itwasalsodemonstratedthattheremovalefficiencyofphosphoruswasonly72%whenth
8、erewasonlysettledanoxicphaseinA/A/OSBR,whileitincreasedto85%w
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