您好,欢迎访问三七文档
当前位置:首页 > 行业资料 > 其它行业文档 > 化学除磷对沸石强化AO工艺运行的影响成官文
AO成官文1, 吴志超2, 章非娟2, 周 军2(1.桂林工学院资源与环境工程系,广西桂林541004;2.同济大学污染控制与资源化研究国家重点实验室,上海200092) : 中试结果表明,化学除磷对沸石强化AO生物脱氮工艺具有双重作用:一方面,化学—生物协同作用除磷效果好(能去除80%~90%的磷),对COD的去除和氨氮的硝化没有影响;另一方面,化学—生物协同作用可改善污泥的粒径分布,提高活性污泥的絮凝和沉降性能,但同时也会增加污泥产率,抑制微型动物的增殖和代谢、影响出水的SS值,而混合投加铝盐和亚铁盐进行除磷时能减少或消除单独投加铝盐或亚铁盐带来的不良影响。 : 城市污水; 化学除磷; AO脱氮工艺; 沸石:X703.1 :A :1000-4602(2003)13-0017-04EffectofChemicalPhosphorusRemovalonZeoliteEnhancedAOBiologicalNitrogenRemovalProcessCHENGGuan-wen1, WUZhi-chao2, ZHANGFei-juan2, ZHOUJun2(1.DeptofResourceandEnvironmentalEngineering,GuilinInstituteofTechnology,Guilin541004,China;2.StatekeyLabofPollutionControlandResourceReuse,TongjiUniversity,Shanghai200092,China) Abstract: ThepilottestresultshowedthatchemicalphosphorusremovalhasdoubleeffectsonzeoliteenhancedAObiologicalnitrogenremovalprocess.ontheonehand,bio-chemicalsynergisticactionhasgoodeffectinphosphorusremoval(upto80%~90%),andhasnoinfluenceonCODre-movalandnitrificationofammonianitrogen;ontheotherhand,bio-chemicalsynergisticactionhasthefunctionofimprovingparticlesizedistributionofsludgeandenhancingflocculationandsettleabilityofsludge;however,itwillalsoincreasesludgeyieldandinhibittheproliferationandmetabolismofmi-croorganism,andthusaffectingtheeffluentSS.Dosingofcombinedaluminumsaltsandferroussaltsisabletoreduceoreliminateunfavorableinfluencewhichiscausedbyseparatedosingofaluminumsaltsorferroussalts. Keywords: municipalwastewater; chemicalphosphorusremoval; AOnitrogenremovalpro-cess; zeolite :1 中试装置与运行参数① 。,pH6.7~7.2,COD73~333mgL,11.89~55.43mgL,TP1.25~8.90mgL,SS56~266mgL。·17· 2003Vol.19 CHINAWATER&WASTEWATER No.13② AO,0.5m×1.5m×8m,A2,O,。③ AO—。A、OO(O,、,O)。Al2(SO4)3·12H2OFeSO4·7H2O。5:A60mgLAl2(SO4)3·12H2O、A30mgLFeSO4·7H2O、O30mgLFeSO4·7H2O、O(20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O)A(20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O)。④ 1.2m3h,HRT5h(A1.25h,O3.75h),100%,200%,30d。1MLSS8.80~13.2gL,5~6gL;2MLSS6.6~8.7gL,3~4gL。⑤ COD、NH3-N、NO-3-N、NO-2-N、TP、SS;、;:AO10mL90mL,0.5h,。,28~30℃20dMPN,Griess,,;37℃10dMPN,,;,MPN。2 结果与讨论2.1 ① COD()COD166mgL,AO1COD34mgL,79.5%;2COD33mgL,80.1%。,COD≥80%,,COD。② 20021015—200313(30~-4℃,8.5℃)。()TP3.18mgL,1、2TP3.02、3.14mgL,TP5.03%、1.26%,;,TP80%,TP,。()23.81mgL,AO16.06mgL,74.5%;24.43mgL,81.4%;3~4gL25~6gL1。,1A,80%。、,。A,O。③ SS,SS,12SS30mgL,,12,,SS。,SSSS。1SS10~30μm,SS(),SS;2SS10μm,SS(),SS。④ (1),,,(GB18918—2002B)110,。·18·2003Vol.19 No.131 104L、GB18918—2002170002401101101301(B) ⑤ ,AO,,;,。2.2 AO① :,;、ζ,,。O3000,110μm,210~30μm,70μm5%;60mgLAl2(SO4)3·12H2O,,110μm,210~30μm,10μm,10~70μm;30mgLFeSO4·7H2O,,10μm,10~150μm,150μm;45mgLFeSO4·7H2O,10μm,30~150μm,150μm。:①;②,;,;③,。,,。② ,MLSS,,SV,1SV,2;1SVI(SVI100mLg),,2SVI100mLg,1。1,,21,。③ 、,12O,,。,;,,;,。,。,20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O,1、20.039、0.038kgMLSSkgCOD(),19.3%、27.1%。2.3 ① ,。(2),12、、。60mgLAl2(SO4)3·12H2O12、,;30mgLFeSO4·7H2O,12,、;,12、、。② 。1,(V.campanula)、(V.microstoma)、(Epistylis)、(Opercularia)、(Zoothamnium)、(Carchesium)、(Aspidisa),(Arcellavulgaris)、·19·2003Vol.19 No.13(Lionotus)、(Colpidium)、(Copo-da),(Philodinasp.)。21,。,1;2、。。1,;2、、。。2 gVSS12AOAO20028172002912200292820021119200212136.30×1093.63×1072.30×1082.85×1083.26×1081.09×1091.78×1098.56×1068.56×1081.35×1097.70×1062.92×1086.04×10101.01×1071.01×1092.78×1095.57×1063.53×1085.97×1096.18×1071.11×1081.04×1095.71×1075.71×1071.41×10108.35×1078.35×1076.67×1092.66×1071.26×108200312020033141.97×1099.32×1071.55×1082.10×1099.94×1079.94×1075.32×1091.38×1081.60×1082.49×1091.48×1081.48×1083 结论① ,AOCOD。② AO,。,,;,,;,。,。SVSVI,,SVSVI。③ ,、,,;。④ AOSS,SSSS;,;;。⑤ 、,。:[1] ,.,,.[M].:,1990.[2] MogensHenze,PoulHarremoës,JeslaCourJansen,etal.[M].:,1999.[3] ,,,.[M].,2000,18(5):28-29.:(0773)5896362:2003-07-29本期责任编辑: 江 荣 编辑: 衣春敏 孔红春·20·2003Vol.19 No.13
本文标题:化学除磷对沸石强化AO工艺运行的影响成官文
链接地址:https://www.777doc.com/doc-6570479 .html