电解生物滤床反应器反硝化作用初探王五洲

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电解-生物滤床反应器反硝化作用初探王五洲,汤兵,蔡河山,张子间(, 510090) :-,:-,,。:; ; ; :X511  :A  :1003-6504(2004)-0117-03  ,。(---)。,。、,。,。,,,。,,。,,。,,。-,,100%[1]。-。1   1600mL。ZK40(10∶1)。。400cm2,3cm。:(1969-),,,,。1   ,,,。,,“”[2]。,,,,。,,。,,,[3]。,CO2pH,。:C+2H2O※CO2+2H2  ,:  NO3-+H2=NO2-+H2O  2NO2-+2H2+2H+=N2O+3H2O  N2O+H2=N2+H2O:2NO3-+5H2+2H+=N2+6H2O,,,-·117·- ,DOI:10.19672/j.cnki.1003-6504.2004.s1.047--。,,,。2 2.1 模拟源水配制,,。:,,,,1。、、(1~2mg/L、0.1~0.3mg/L、3.5~4.5mg/L、OC10.0~12.0mg/L)。,,,。1 ()(mg/L)(N-(1-)-)0.2~0.4()8~18()1.0~2.0(OC)()8~122.2 静态试验,,4.5V,8h。(IC)(TOC),TOC-5000;(ORP)pH,TOARM-10PORPpH-3SpH。2.3 挂膜过程简介,(0.2L/h,0.4L/h),20mA,0.05mA/cm2。,,,55%。,,。2.4 试验方法,:8~11mg/L;15~18mg/L。4:0mA、20mA、40mA、60mA。0.4L/h,(HRT)1.5h。3 3.1 静态试验:,IC90mg(C)/L160mg(C)/L。,TOC40mg(C)/L,8h,TOC38mg(C)/L。,1h(ORP)-160~-190mV,,ORP,。pH,pH(6.8~7.2)。pH,pH。,-pH6.5~7.5,pH。,,pH。3.2 工况甲8~11mg/L,,4,2。2 ()  2:(1)-,85%~95%,,,(0),;,60%~80%,。(2),,60mA(:0.15mA/cm2)20mA(:0.05mA/cm2),·118·         27  20048     20%。,,,,H2,[4]。3.3 工况乙(15~18mg/L),,3。3:,“,、”。3 ()  、45,,,(),,-。,,。。4 (1)-,(、),。(2)-,。,,,。(3),,;,,85%~95%,。(4),-。(5),,,。,。[][1] SakakibaraY,KurodaK.Electricpromptingandcontrolofden-itrification[J].BiotechnolBioeng,1993,42:535.[2] ,,.[J].,2003,4(2):27-28.[3] ,,,.--[J].,2001,21(3):257-262.[4] ,,.[J].,1998,11(1):45-47.(:2003-11-18;:2004-02-23)ResearchonDenitrificationofElectrolysis-BiofilterBedReactorWANGWu-zhou,TANGBing,CAIHe-shan,ZHANGZi-jian(FacultyofEnvironmentScienceandEngineering,GuangdongUniversityofTechnology,Guangzhou510090)Abstract:Electrolysis-biofilterbedreactorwasutilizedinpre-treatmentoflightlypollutedsourcewater.Resultsshowedthatelectrolysis-biofilterbedreactorhasmuchhigherefficiencythanbiofilterbedreactorindenitrificationandnitrate-nitrogenremovalatthesameconditions.Keywords:electrolysis;biofilterbed;denitrification;pre-treatment·119·- ,

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