SBR联合光催化技术处理垃圾渗滤液的探究

第31卷第2期圆园18年4月环境科技耘灶增蚤则燥灶皂藻灶贼葬造杂糟蚤藻灶糟藻葬灶凿栽藻糟澡灶燥造燥早赠灾燥造援31No援2Apr援圆园18收稿日期院2018-02-12作者简介院付坤渊1980-冤袁男袁河北衡水人袁硕士研究生袁工程师袁主要从事公用工程系统及安全环保管理工作.SBR联合光催化技术处理垃圾渗滤液的探究付坤1袁李海燕2渊1.中海油渊青岛冤重质油加工工程技术研究中心有限公司袁山东青岛266500曰2.中海油安全技术服务有限公司袁天津300452冤摘要院垃圾卫生填埋场产生的垃圾渗滤液是一种难生物降解的高浓度有机废水袁具有高COD尧高NH4+-N尧可生化性差的特点袁尤其是中晚期的渗滤液更难以用常规的生物处理技术进行处理袁多采用高级氧化处理技术或联合处理工艺进行处理遥通过采用SBR渊序批式活性污泥法冤联合光催化技术对中晚期垃圾渗滤液进行处理袁分别考察了SBR工艺驯化阶段尧曝气时间尧静置时间尧滗水时间及光催化工艺催化剂浓度尧处理时间对处理效果的影响袁结果表明院淤SBR驯化周期为28d袁出水COD稳定曰于优化的处理工艺条件为SBR工艺进水时间5s尧曝气时间3h尧静置时间10min尧滗水时间80s尧闲置时间20min袁光催化工艺催化剂TiO2(P25)质量浓度为1g/L尧反应时间2.5h曰盂最优工艺条件下袁垃圾渗滤液COD质量浓度降为270mg/L袁NH4+-N质量浓度降为15mg/L袁COD去降率可以达到89.2%袁NH4+-N去除率可以达到99.9%遥研究显示袁SBR联合光催化技术适合于中晚期垃圾渗滤液的深度处理遥关键词院灰霾过程曰PM2.5曰能见度曰垂直风曰相对湿度中图分类号押载缘文献标识码押A文章编号押1674-4829渊201愿冤02-0033-05ResearchonTreatmentLandfillLeachatebySBRCombinedPhotocatalysisTechnologyFUKun1,LIHai原yan2(1.CNOOC(Qingdao)HeavyOilProcessingEngineeringResearchCenter,Qingdao266500,China曰2.CNOOCSafetyTechnologyServicesCo.Ltd,Tianjin300452,China)Abstract:Duringthemiddle-lateageofthewastesanitaryplant,landfillleachateproducedfromlandfillprocesswasanon-biodegradableorganicwastewaterwithhighconcentrationofpollutants.However,ithasbeenproveddifficulttodisposelandfillleachatebyconventionalbiologicalmethodsforitshighCOD,highammonianitrogen,andpoorbiodegradability.TreatmentofintermediateandlatelandfillleachatebySBRandphotocatalysis.Theeffectsofdomestication,aeration,staticstate,decantationandcatalystconcentration,photo-irradiationtimeonthetreatmentefficiencywereinvestigated.Theresultsshowthatwhenthedomesticationtimewastwenty-eightdays,theeffluentCODwasstable.Meanwhile,theoptimizingtechnicalparametersofSBRwerethatfilltime5seconds,aerationtime4hours,statictime10minutes,decantationtime80seconds,idletime20minutesandTiO21g/L,phtodegradationtime2.5hours,respectively.Undertheoptimizingcondition,bothoftheeffluentCODandammonianitrogenremovalpercentwere89.2%and99.9%,respectively.Therefore,thecombinationbetweenSBRandphotocatalysiswasasuitablepromisingtechnologyfortreatmentofla