140 Vol.36 No.11 2010不同固态碳源用于反硝化去除污水处理厂尾水中硝态氮的研究陈云峰1 文 辉2 张彦辉1(1, 230061;2, 232001) 针对污水处理厂尾水氮素高度硝化的现状,研究了不同固体碳源在不同条件下的反硝化速率及对硝态氮的去除率。结果表明:麦秆、PBS和PHAs较其他固态碳源具有更好的脱氮效果,25℃为最适宜反应温度;进水硝态氮浓度与硝态氮去除率之间有很好的相关性;随着反应时间的延长,各碳源脱氮效率也在不断加速,至24h时,PBS、PHAs和麦秆对应的去除率分别为98.53%、93.41%和73.26%。对三种碳源反应前后的表面进行扫描电镜分析,证实了三种碳源作为反硝化固体碳源的可行性。COD反弹和硝态氮积累试验表明,麦秆更适用于污水处理厂尾水的生态净化工艺。 固态碳源 反硝化 尾水脱氮 污水处理厂0 ,BA,。,:(20.6mg/L)80.6%(16.61mg/L),19.4%(3.99mg/L)。,C/N3.09∶1,。,,。,、[1~4],(2008ZX07103004,2008ZX07316004)。,[5]、[6]、[7]、[8]、PCL[9]、[10]。,、(PBS)(PHAs),。1 1.1 (1)1.2 250mL,50g,1000mg/L10mL,45mg/L、30mg/L15mg/L,,25℃3~7d,。1.3 、 ,2002,24(2):61~657 ,,.—.,2001,27(8):12~158 ZhangLL,YangD,ZhongZJ,etal.Applicationofhybridcoagulation-microfiltrationprocessfortreatmentofmembranebackwashwaterfromwaterworks.SeparationandPurificationTechnology,2008,62(2):415~4229 ZhangLL,GuP,ZhongZJ,etal.Characterizationoforganicmatteranddisinfectionby-productsinmembranebackwashwaterfromdrinkingwatertreatment.JournalofHazardousMaterials,2009,168(2-3):753~759 ★E-mail:guping@tju.edu.cn:2010-04-26:2010-08-16DOI:10.13789/j.cnki.wwe1964.2010.11.013 Vol.36 No.11 2010141 1 42%,36%,22% 100℃0.5h,65℃24h,1~3cm 60%,、 ,1cm ,1cm 94.4%,, 、、 1~3cm 1.5cmPHAsPBS,,45mg/L、30mg/L15mg/L,1.5mg/L。1.4 ,N-(1-)-,UV-2401PC;pHPB-10;JSM-6460LV[11]。2 2.1 25℃,25mg/L,,1。1 。,;40%,,。16.11mg/L14.12mg/L。、PHAsPBS,63.84%、83.46%89.4%。2.2 ,、PBS、PHAs。2.2.1 ,。,30mg/L,HRT24h,5℃、15℃、25℃35℃,1g,1gPBS,0.5gPHAs,,2。2 2,,,:25℃35℃15℃5℃。25℃,4mg/L,85%;35℃,28.83mg/L8.97mg/L、4.18mg/L4.51mg/L;15℃25℃,PBS、PHAs142 Vol.36 No.11 201044%、45%32%;5℃。,。2.2.2 ,25℃,HRT24h,15mg/L、25mg/L、35mg/L45mg/L,,3。3 3,。,,,PHAsPBS,,。2.2.3 (1g、1gPBS0.5gPHAs)25℃,30mg/L,,4。4,,,8h,,12h,12h,24h4 73.26%;PBSPHAs21h,24h,98.53%93.41%。2.3 2.3.1 (5)5 。,,,。,。2.3.2 PHAs(6)6 PHAs,PHAs,,,,,PHAs,1000。2.3.3 PBS(7)PBS Vol.36 No.11 2010143 7 PBS,PBS,,,,,PBS。。2.4 CODCr25mg/L、24h、25℃,7,CODCr,2。2 7CODCr/mg/L/mg/L 45.940.01PBS838.710.11PHAs1148.730.17 ,、PBSPHAs《》(GB5749—2006)NO-2—N(0.2mg/L),。CODCrA(50mg/L),PBSPHAsCOD,1000mg/L。PBSPHAs,COD,,,COD。,,COD,。3 (1),,、PHAsPBS,。(2),5℃,25℃;、PBSPHAs,;,,24h、PBSPHAs73.26%、98.53%93.41%。(3),。(4)COD,PBSPHAs。参考文献1 BlowesDW,RobertsonWD,PtacekCJ,etal.Removalofagriculturalnitratefromtile-drainageeffluentwaterusingin-linebioreactors.JournalofContaminantHydrology,1994,15:207~2212 VolokitaM,AbeliovichA,SoaresM.Denitrificationofgroundwaterusingcottonasenergysource.WatSciTech,1996,34(1/2):379~3853 VolokitaM,BelkinS,AbeliovichA,etal.Biologicaldenitrificationofdrinkingwaterusingnewspaper.WatRes,1996,30(4):965~9714 RobertsonWD,BlowesDW,PtacekCJ,etal.Long2termper-formanceofinsitureactivebarriersfornitrateremediation.Groundwater,2000,38(5):689~6955 ,,..,2004,23(3):512~5156 ,..,2001,22(4):98~1017 ,,..,2004,15(12):2359~23638 ,,,..B:,2008,38(9):824~8289 ,,,.,2008,17(1):41~4610 ,,,..,2008,31(7):4~1011 ..4.:,2002 &:13696530136E-mail:Tea69@vip.163.com:2010-06-17