短HRT下厌氧降流式悬浮填料床预处理生活污水的研究何成达

HRT何成达1,叶亚玲1,季俊杰1,葛丽英1,何　莲1,谈　玲1,王惠民2(1.,　225009;2.,　210098)　:HRT。HRT6h,4h,3h,COD,COD57.6%,52.8%49.7%。HRT3h,6。,COD47.7%,COD38.3%;SS64%。HTRCOD。HRT,。:;;;:X703;S216.4　　:A　　:1000-1166(2004)03-0011-04StudyonPretreatmentofDomesticSewageinAnaerobicDown-flowSuspendingMediaBedatShortHRT/HECheng-da1,YEYa-ling1,JIJun-jie1,GELi-ying1,HELian1,TANLing1,WANGHui-min2/(1.CollegeofEnvironmentalScienceandTechnologyEngineering,YangzhouUniversity,Yangzhou225009,China;2.CollegeofEnvironmentalScienceandTechnol-ogyEngineering,HohaiUniversity,Nanjing210098,China)Abstract:Thetreatmentofdomesticsewageatambienttemperaturewasinvestigatedinanaerobicdown-flowsuspendedmediabedre-actoroperatedatdifferenthydraulicretentiontimes(HRT).ThereactorwasefficientintheremovalrateofCOD,viz.57.6%,52.8%and49.7%atanHRTof,respectively,6,4and3h.ForexaminedoncharacteristicsoftheremovelrateofCODinthere-actoratHRT3h,experimentwasgoneonforsixmonth.Theresultshowsthat,theaverageremovalofCODandSSwere47.7%and64%,respectively.InthewintertheremovalofCODwas38.3%.Thereforetheprocesswasefficientusinganaerobicdown-flowsus-pendedmediabedreactoratshortHRT.Itmaybetoapplytodomesticsewagefortownandcountryside.ThereactionmechanismofCODdegradationhasalsobeendiscussedinthispaper.Keywords:anaerobicdown-flowsuspendedmediabed;domesticsewage;ambienttemperature;pretreatment:2003-11-14　:2004-03-15:(02KJB610004):(1962-),,,。　　,。,、5～15℃,(HRT)[1～4]。,[5]。UASBAF,,[2]。HRT、、。,。11ChinaBiogas2004,22(3)1　　1.1　试验装置。1,,300mm,1500mm,106L。6。。18mm,0.92,1400m2·m-3。1。1　/mm/℃/℃/m2·m-31880～100-15≥95%14000.921.2　污水水质,2。2　COD/mg·L-1BOD5/mg·L-1SS/mg·L-1/℃/mg·L-1pH145～419131～287124～23710～30298～3426.5～7.01.3　反应器启动与运行35,。50COD,HRT8h,60%。51HRT,HRT6h,4h,3h,5、6、7。7HRT3h,HRT3h。11,,,。-3℃。1.4　测试指标和分析方法COD,SS,NH4+-N,pH,,VFA,《》。2　2.1　COD,SS去除效果2.1.1　HRT5,,。2COD。2,,HRTCOD(5、6、7,COD271mg·L-1,34.9mg·L-1),COD(5、6、7,COD126mg·L-1,14.6mg·L-1),。HRT,COD,。5,6,7COD57.6%,52.8%49.7%。HRT3hCOD,SS70%,HRT3h。2.1.2　HRT3hCOD812,,10,COD45%。11,COD,11%。,38.3%。2.1.3　HRT3hSSSS,。4,SS,SS。3,SS60mg·L-1,6mg·L-1,SS。SS64%。SS,SS7%。SS12ChinaBiogas2004,22(3)。SS:“”;,;。2.2　讨论2.2.1　HRTCODYoungMcCarty,BODHRTHRT1.8h[6]。ElmitwalliAF+AH,(13℃)HRT4h,AF()COD81%[7]。HRT6h,4h,3h,HRT3hCOD。HRT,HRT。HRTCOD,SS。,--,HRTSRT,,。-COD,-CODCOD43%,-CODCOD72%。。,COD、COD。2.2.2　SRT25℃15dSRT,15℃75dSRT[8]。SRT。,,,。11MerckAnaerocultAORPEh,3～12℃。4。3。Eh,9,,,。3　Eh/·-12～8×1055～7×1051～2×1051～3×104Eh/mV-356-342-330-324　　512。,SRT。,30℃,SRT,COD,12,COD36%。,、。,。2.2.3　,COD,SS,。,COD5。3　　(1),HRT3hCOD48%,COD13ChinaBiogas2004,22(3)37%。(2)SS,SS64%。SS。(3),、,。:[1]　LettingaG,RebacS,ZeemanG.Challengeofpsychrophilicanaerobicwastewatertreatment[J].TrendinBiotechnology,2001,19(9):363-370.[2]　VanLierJ,RebacS,LettingaG.High-rateanaerobicwastew-atertreatmentunderpsychrophilicandthermophilicconditions[J].WaterScienceTechnology,1997,35(10):199-206.[3]　KashyapDR,DadhichKS,SharmaSK.Biomethanationun-derpsychrophilicconditions:areview[J].BioresourceTech-nology,2003,87(1):147-153.[4]　ZeemanGandLettingaG.Theroleofanaerobicdigestionofdomesticsewageinclosingthewaterandnutrientcycleatcom-munitylevel[J].WaterScienceTechnology,39(5):187-194.[5]　,.[M].:,2001.[6]　.[M].:,2003.[7]　ElmitwalliTA,OahnKLT,ZeemanG,etal.Treatmentofdomesticsewageinatwo-stepanaerobicfilter/anaerobichybridsystematlowtemperature[J].WaterResearch,36(2002):22252232.[8]　MironY.Theroleofsludgeresidencetimeinthehydrolysisoflipids,carbohydratesandproteinsduringtheanaerobictreat-mentofdomesticsewage[J].WaterResearch,2000,34(4):1705-1713.　　《》报道蔬菜新优品种、实用技术、产销管理经验和致富信息,追综蔬菜产业热点、难点,荟萃全国蔬菜名特优新品种信息。信息量大,实用性、可操作性强。读者对象为广大蔬菜科研及管理人员、种植专业户和种子经营者。《长江蔬菜》国际大16开本,月刊;每册订价4.80元,全年订价57.60元;国内外公开发行,全国各地邮局均可订阅,邮发代号38-129,也可直接汇款到本社发行部邮购,不另收邮费。地址:湖北省武汉市汉口万松园路15号　　邮编:430022E-mail:[e-mail]电话:[phone]　传真:[phone]《》是中国太阳能学会主办的全国性学术期刊,中文核心期刊。主要报道我国太阳能、生物能、风能、氢能、海洋能及地热能等科学技术研究成果。《太阳能学报》为双月刊大16开本,双月底出刊,刊号:CN11-2082/TK,邮发代号:2-185　定价:25元/期(含邮费)全年150元(含邮费)。《》杂志是中国太阳能学会主办的全国性科普期刊,1980年创刊。内容涵盖太阳能、生物能、风能、氢能、海洋能及地热能等领域。主要栏目有:产业论坛、科普苑、太阳能与建筑、技术与产品、信息视角、企业导航、国际太阳能新闻等。《太阳能》杂志为为16开本。刊号:CN11-1660/TK　邮发代号:2-164　定价:8元/期(含邮费)全年48元(含邮费)欢迎读者到全国各地邮局或本刊编辑部订阅2005年《》《》杂志。单　位:《太阳能学报》《太阳能》杂志编辑部地　址:北京市海淀区花园路3号　邮编:100083电　话:010-62001037　62001038传　真:010-62373887开户行:中国工商行北京分行北太平庄分理处帐　号:144288-67户　名:北京市太阳能研究所14ChinaBiogas2004,22(3)