基于模糊综合评判模型的UASB反应器运行状态估计_曹刚

第28卷第4期2008年4月环境科学学报ActaScientiaeCircumstantiaeVol.28,No.4Apr.,2008基金项目:国家自然科学基金(No.20676050);广东省科技计划重点项目(No.2006A36802001)SupportedbytheNationalNaturalScienceFoundationofChina(No.20676050)andthekeyPlanofScienceandTechnologyofGuangdongProvince(No.2006A36802001)作者简介:曹刚(1972—),男,讲师(博士);＊通讯作者(责任作者),E-mail:caog@163.comBiography:CAOGang(1972—),male,lecturer(Ph.D.);＊Correspondingauthor,E-mail:caog@163.com曹刚,徐向阳,李明玉,等.2008.基于模糊综合评判模型的UASB反应器运行状态估计[J].环境科学学报,28(4):810-814CaoG,XuXY,LiMY,etal.2008.Operationestimationoftheuasbreactorbasedonafuzycomprehensiveevaluationmodel[J].ActaScientiaeCircumstantiae,28(4):810-814基于模糊综合评判模型的UASB反应器运行状态估计曹刚1,＊,徐向阳2,李明玉1,汤心虎1,王俊11暨南大学环境工程系,广州5106322浙江大学环境工程系,杭州310029收稿日期:2007-04-12修回日期:2007-07-14录用日期:2008-01-29摘要:用C-均值聚类方式对毒物负荷冲击下的UASB反应器所有数据进行了聚类分析,由反应器稳定运行状态时的性能参数值分别确定了稳定、较稳定、较不稳定和不稳定运行状态的隶属函数.结果表明,估计反应器运行状态的最佳因素集为{VFA、ALK、VGP、CH4},VFA、ALK、VGP和CH4的最佳权重分别为0.40、0.20、0.10和0.30;模糊综合评判模型可有效的估计毒物负荷冲击下厌氧反应器运行状态,并能判定反应器在各个时刻处于不同运行状态的隶属度.关键词:模糊综合评判模型;毒物负荷;UASB;状态估计;C-均值聚类文章编号:0253-2468(2008)04-810-05中图分类号:X703文献标识码:AOperationestimationoftheuasbreactorbasedonafuzycomprehensiveevaluationmodelCAOGang1,＊,XUXiangyang2,LIMingyu1,TANGXinhu1,WANGJun11.DepartmentofEnvironmentEngineering,JinanUniversity,Guangzhou5106322.DepartmentofEnvironmentEngineering,ZhejiangUniversity,Hangzhou310029Received12April2007;receivedinrevisedform14July2007;accepted29January2008Abstract:ThefuzzyC-meanclustermethodwasusedtoanalyzethedatacollectedfromanUpflowAnaerobicSludgeBlanketreactor(UASB)shockedwithtoxicload,soastoobtainthemembershipfunctionofvariousoperationstatesoftheUASBreactorfromitsperformanceparametersunderstableoperatingconditions.Theresultsshowedthatthefactorcollection{VolatileFattyAcids(VFA),Alkalinity(ALK),VolumeGasProduction(VGP),andCH4}reflectedtheactualoperatingstatesoftheanaerobicbioreactor,andtheiroptimumweightsweredistributedas[0.40,0.20,0.10,0.30].Itisthereforeconcludedthatthefuzzycomprehensiveevaluationmodelcouldeffectivelyestimatetheoperatingstateoftheanaer