二氧化氯对海水循环系统中生物滤器硝化作用的影响罗国芝

二氧化氯对海水循环系统中生物滤器硝化作用的影响罗国芝　　朱学宝　　施正锋(上海水产大学渔业学院,上海200090)　　,10mg/LNH4-N,。,,NH4-N,pH;。　　　EffectsofChlorineDioxideonNitrificationinClosedSeawaterCultureSystemLUOGuo-zhi　ZHUXue-bao　SHIZheng-feng(FisheriesCollege,ShanghaiFisheriesUniversity,Shanghai200090)Abstract　Theeffectsofchlorinedioxideonnitrificationinclosedseawaterculturesystemswereevaluatedbymonitoringconcentrationsoftotalammonia-nitrogenandnitrite-nitrogenbe-fore,duringandaftertreatment.Theresultsshowedthat0.3mg/Ljunduqingresultedinsignificantlyinhibitionofnitrification.ThepHandNH4-Nremainhigherlevelinexper-imentalsystemforalongtime.Butalltheseeffectsremovedwithinexperimentaltime.Keywords　Seawaterbiofilter　Nitrification　Chlorinedioxide　　,,。。,。材料和方法　　1.PVC-,50×30×40cm(××),50L;8.9×27×18.9cm,,5～10mm。IN-STEANTOCEAN,35。(),COD10～20mg/L,pH。25～28℃,6mg/L。(),。,。,。“”,0.3mg/L,。2.:(YSI-Model-33,S-C-217　2001,28(5)1　“”NH4-N、　　　2　0.3mg/L“”　　　　　NO2-NpHTMETER),,pH(pH-3D,),NH4-N、NO2-N(Parson,1984),(),COD(),DO(),(EDTA)NO3-N(Spotte,1979)。10mg/LNH4-N(NH4-N0.5mg/L,NO2-N0.01mg/L)。,、、、、COD。3.　　0.3mg/L“”(),NH4-N、NO2-N、pH。,10mg/LNH4-N。。　　10mg/LNH4-N,24h0.3mg/L“”,;NH4-N0.05mg/L、NO2-N0.01mg/L,10mg/LNH4-N。。　　0.3mg/L“”,24h10mg/LNH4-N;,10mg/LNH4-N,。pH,pH。结　果　　1.0.3mg/L“”,。1,NH4-N,24h0.05mg/L0.21mg/L;31.17mg/L;51.84mg/L;7.5,NH4-N0.89mg/L;130.09mg/L,。NO2-N,0.03mg/L。“”pH。1、2,NH4-NpH,NH4-N,pH(5.5)。NH4-N、NO2-N,pH,“”pH。0.3mg/L“”,NH4-N(2.5～3)(0.5～1)。,10mg/LNH4-N12hNH4-N3.15mg/L,24h0.14mg/L,48h0.05mg/L。“”24h,12hNH4-N6.67mg/L,24h5.89mg/L,36h4.20mg/L,48h2.63mg/L;60h0.79mg/L,3.50.05mg/L。NO2-N(0.5mg/L),。,10mg/LNH4-N。10mg/LNH4-N,NO2-N(0.5mg/L)。218　2001,28(5)3　0.3mg/L“”　　4　0.3mg/L“”10mg/LNH4-N10mg/LNH4-NNO2-N50.3mg/L“”　　60.3mg/LNH4-N,0.3mg/L10mg/LNH4-NpH“”,NH4-N　　,10mg/LNH4-NpH,pH。“”,,pH(5,8)。2.10mg/LNH4-N,24NH4-N0.05mg/L,NO2-N2.51mg/L。0.3mg/L“”NH4-N(6),1.6mg/L,4～5d1.00mg/L。NH4-N0.05mg/L12.5d,4d。NO2-N(7)。1。,12～13d,。10mg/LNH4-N13(“”26d),NO2-N0.01mg/L。NH4-N,NO2-N。1,“”。pH1(8)。“”,pH,NH4-N。3.0.3mg/L“”24h,10mg/LNH4-N,NH4-N,(4mg/L)3～4d(9),。NO2-N(10)。“”9d,“”2。讨　论　　219　2001,28(5)7　10mg/LNH4-N,0.3mg/L　　8　“”10mg/L“”,NO2-NNH4-NpH90.3mg/L“”24h,　　100.3mg/L“”,10mg/LNH4-N10mg/LNH4-NNO2-N,、、、,pH(6～10)、。、,ClO2ClO-,[2]。,,NH4-N。(4、7、10)pH(2、8)、。pH()。(1),,,pH,。。2(10mg/LNH4-N),,“”,,(7)。1、3,(,2000),,(3、9)。BronkGlibert(1993)、SondergarrdMiddelboe(1995),NH4-NN。、、NH4-N(MeijeeslJempest,1976;Goldman,1987)。NH4-N220　2001,28(5)南美蓝对虾和南美白对虾混养试验黄建丁(漳州市鱼种场,福建363000)　　(Penaeusstylirostris),、、、,。20014～5,,60%,30%,。,65,,234kg/1000m2。、,1800m2,,2040m2,,50cm。,,;,。,。80,。1.5kW0.75kW。、,。,15d。530cm,(150kg/1000m2),。,,50cm;。,2,1.001(30℃)。、65,10,665。,,0.8～1.2cm。100(1m×1m×0.8m),5d,93%。,,。1...,1997,24(1):17～19.2...,1998(6):30～31.3.,..,1997,5(1):51～60.4.AliciaC.Noble,StevenT.Summerfelt.Diseasesencounteredinrainbowtroutculturedinrecirculatingsystems.AnnualReviewofFishDiseases,1997(6):65～92.5.BronkD.A.,GlibertP.M..ContrastingpatternsofdissolvedorganicnitrogenreleasebytwosizefractionsofestuarineplanktonduringaperiodofrapidNH4consumptionandNO2-Nproduction.MarEcol.Prag.Ser,1993,96:291～299.6.GoldmanJ.C.,CaronD.A.,DennettM.R..RegulationofgrossgrowthefficiencyandammoniumregenerationinbacterrabysubstrateC∶Nratio.LimnolOceacogr,1987,32:1239～1252.7.NeijeeslO.M.,JempestD.W..BionergeticaspectsofaerobicgrowtrhofklebsiellaaerogenesNCTC418incarbon-limitedandcarbon-sufficientchemostatculture.Arch.Microbiol,1976,107:215～721.8.SondergarrdM.MiddelboeM..Across-systemanalysisofla-biledissolvedorganiccarbon.Mar.Ecol.Prog.Ser,1995,48:283～294.发稿编辑　朱大白校对　汤惠明221　2001,28(5)