城市污水处理厂污泥厌氧消化的预处理技术

该方法的应用具有广阔的前景。在严格控制供氧的条件下,利用化能自养型微生物(Thiobacillussp.)脱硫具有很广阔的市场应用前景,尤其是两阶段脱硫工艺已经有了工程应用的先例。该工艺具有不影响沼气的回收利用,不产生新的环境污染等特点。另外,以铁盐吸收脱出H2S,然后用生物氧化再生铁盐吸收液的方法近年来成为新的研究热点。从单质硫分离的角度而言,固定化增殖的生物膜反应器具有潜在的优势。因为生物膜反应器无需污泥回流系统,可以减少SO42-在系统中的积累,避免因此而造成对环境的二次污染。另外,采用固定化增殖的生物膜反应器能够使单质硫的分离变得简单、容易。参考文献:[1]BoydR.InternalizingenvironmentalbenefitsofanaerobicdigestionofpigslurryinNorfolk[M].UK:UniversityofEastAnglia,2000.[2]TchobanoglousG,FLBurton,HDStensel.WastewaterEn2gineering[M].NewYork:McGraw-HillCompanies,2003.[3]KimBW,EH.Kim,HNChang.Applicationoflighte2mittingdiodesasalightsourcetoaphotosyntheticcul2tureofChlorobiumthiosulfatophilum[J].BiotechnologyTechniques,1991,5(5):343-348.[4]SercuB,DNúez,VHLangenhove,GAroca,WVer2straete.Operationalandmicrobiologicalaspectsofabio2augmentedtwo-stagebiotricklingfilterremovinghydro2gensulfideanddimethylsulfide[J].BiotechnologyandBioengineering,2005,90(2):259-269.[5]EliasA,ABarona,AArreguy,JRios,IAranguiz,JPeas.Evaluationofapackingmaterialforthebiodegrada2tionofH2Sandproductanalysis[J].ProcessBiochemis2try,2002,37:813-820.[6]KimH,JYKim,SJChung,QXie.Long-termopera2tionofabiofilterforsimultaneousremovalofH2SandNH3[J].Air&WasteManagementAssociation,2002,52:1389-1398.[7]CorkD,JMatherAMaka,ASrnak.ControlofoxidativesulfurmetabolismofChlorobiumlimicolaformathiosulf2atophilum[J].AppliedEnvironmentalMicrobioogy,1985,49:269-272.[8]PrescottML,PJHarley,ADKlein.Microbiology[M].NewYork:McGraw-HillCompanies,2003.[9]MakaA,DCork.Quantumefficiencyrequirementsforananaerobicphotobioreator[J].IndustrialMicrobiology,1990,5:337-354.[10]HenshawPF,WZhu.Biologicalconversionofhydrogensulfidetoelementalsulfurinafixed-filmcontinuousflowphoto-reactor[J].WaterResearch,2001,35(15):3605-3610.[11]ShareefdeenZ,BHerner,SWilson.Biofiltrationofnui2sancesulfurgaseousodorsfromameatrenderingplant[J].ChemicalTechnologyandBiotechnology,2002,77:1296-1299.[12]MalhautierL,CGracian,CJRoux,LJFanlo,PLeCloirec.Biologicaltreatmentprocessofairloadedwithanammoniaandhydrogensulfidemixture[J].Chemo2sphe