CTB污泥处理工艺的臭气控制效果研究

CTB陈俊1,高定1,陈同斌1,郭松林1,郑国砥1,杜伟2,马达3(1.中国科学院地理科学与资源研究所环境修复研究中心,北京100101;2.北京中科博联环境工程有限公司,北京100080;3.秦皇岛市绿港污泥处理厂,河北秦皇岛066000):秦皇岛市绿港污泥处理厂采用基于智能化控制的污泥好氧生物发酵工艺(CTB工艺),对厂区车间内的H2S和NH3浓度进行连续监测,考察了CTB工艺对臭气产生与排放的控制效果结果表明,CTB工艺可以较好地控制污泥好氧发酵过程中H2S和NH3的产生和排放,使厂区各车间人员活动区域的H2S和NH3平均浓度分别低于0.51和18.6mL/m3,保证发酵车间和混料车间的空气质量满足工作场所有害因素职业接触限值(GBZ22002)的要求对于发酵车间,与车间密闭的条件相比,自然通风或开启废气收集和生物除臭系统可使H2S和NH3浓度降低70%~98%,而且在自然通风条件下即可保证厂区的空气质量达标,一般不需启动生物除臭系统,降低了运行成本:城市污泥;CTB工艺;好氧生物发酵;臭气污染;硫化氢;氨气:X703:C:1000-4602(2010)09-0134-04:(2006BAJ10B04);(0704K033)OdorControlEfficiencyinSewageSludgeTreatmentbyCTBProcessCHENJun1,GAODing1,CHENTongbin1,GUOSonglin1,ZHENGGuodi1,DUWei2,MADa3(1.CenterforEnvironmentalRemediation,InstituteofGeographicSciencesandNaturalResourcesResearch,ChineseAcademyofSciences,Beijing100101,China;2.BeijingGreenTechEnvironmentalEngineeringCompany,Beijing100080,China;3.QinhuangdaoLvgangSewageSludgeTreatmentPlant,Qinhuangdao066000,China)Abstract:TheconcentrationsofH2SandNH3intheworkshopsofLvgangSewageSludgeTreatmentPlantusingcontroltechnologyforbiocomposting(CTB)processinQinhuangdaoCityweremonitoredcontinuously.ThecontrolefficiencyofodorproductionandemissioninCTBprocesswasinvestigated.TheresultsshowthatCTBprocesscaneffectivelycontrolproductionandemissionofH2SandNH3duringsludgeaerobicfermentation.TheconcentrationsofH2SandNH3inthehumanactivityareaoftheworkshoparebelow0.51mL/m3and18.6mL/m3respectively.TheairqualityintheworkshopscanmeettherequirementofOccupationalExposureLimitforHazardousAgentsintheWorkplace(GBZ2-2002).Comparedwiththeclosedcondition,thenaturalventilationorthestartingofwastegascollectionsystemandbiologicaldeodorizationsystemcandecreasetheconcentrationsofH2SandNH3by70%to134第26卷第9期2010年5月中国给水排水CHINAWATER&WASTEWATERVo.l26No.9May201098%.Undertheconditionofnaturalventilation,theairqualityintheplantcanalsomeetthestandardwithoutthestartingofbiologicaldeodorizationsystem,reducingtheoperationcos.tKeywords:municipalsludge;controltechnologyforbiocomposting(CTB)process;aerobicbiologicalfermentation;odorpollution;hydrogensulfide;ammonia,H2SNH3[1],H2SNH3,,(50t/d)(300t/d)5,CTB,,,H2S,CTB,,H2SNH3,CTB1材料与方法11(CTB),,200t/d,80%Compsoft3.0-,,20d,H2SNH3CTB,H2SNH311CTBTab.1ParametersofCTBmultigasanalyzer/(mLm-3)/(mLm-3)/sH2S0~1000.013%FS2NH30~2000.013%FS212,6~8h/d6(1)S1S3(-4.20m),S1,S3;S2,5cm;S4S5S624hH2SNH3,1/10s1Fig.1Sketchmapofodormonitoringsitesinmaterialmixingworkshop,,8135陈俊,等:CTB污泥处理工艺的臭气控制效果研究第26卷第9期m,L1L2L34,1(2),310m/min,H2SNH3,1.5m,1/10s2Fig.2Sketchmapofmonitoringsitesinfermentationworkshop()3(P1P2P3),246mH2SNH32结果与讨论21H2SNH3H2SNH322H2SNH3Tab.2ConcentrationsofH2SandNH3inmaterialmixingworkshopmLm-38:0012:0012:0018:0018:008:00H2SNH3H2SNH3H2SNH3S10.262.051.314.820.293.291.365.610.081.041.347.03S20.301.014.019.880.515.935.7013.30.252.133.5013.0S30.090.860.163.440.070.870.174.150.030.590.376.23S40.180.940.874.740.250.621.033.240.040.480.574.05S50.030.100.080.210.050.120.080.110.010.100.070.16S60.080.440.130.170.120.300.130.170.020.090.120.162,S1~S4H2S0.03~0.51mL/m3;H2S,,,,;,,S5S6H2S0.01~0.12mL/m3,(GBZ22002),(GB1455493)500m,6,H2S,H2SS5S6NH3,NH30.07~5.70mL/m3,13.3mL/m3,(GBZ22002)S2,NH3,NH3,(12:0018:00)H2SNH3(8:0012:00),(18:008:00)H2SNH3,H2SNH3,H2SNH3,,H2SNH322H2SNH3,,3,H2S0.08~0.170.31~0.79mL/m3,NH30.21~18.61.23~31.0mL/m3(3)(GBZ22002),H2S6.57mL/m3,NH326.4mL/m3,NH339.6mL/m3,(),H2SNH33,136第26卷第9期中国给水排水~83%,3/h,NH3,98%90%~95%,;,CTBCompsoft3.0,3H2SNH3Tab.3ConcentrationsofH2SandNH3inworkingplaceoffermentationworkshopmLm-3H2SNH3H2SNH3H2SNH3L10.140.3816.531.00.130.464.927.590.130.790.264.28L20.080.3113.618.50.150.372.274.350.160.420.241.23L30.110.3118.627.90.170.413.215.690.110.540.212.85CTB,H2S,,H2S,H2S,,,,(4),3,H2SCTB,,H2S,H2S4H2SNH3Tab.4ConcentrationsofH2SandNH3abovefermentationcabinsmLm-3H2SNH3H2SNH3H2SNH36m0.090.4055.682.70.060.3216.341.90.400.7031.145.44m0.210.6326.646.30.241.1811.833.90.150.388.3416.72m0.261.9720.932.40.100.577.8113.20.310.863.8220.7NH3,3,NH3,:NH3,NH3,,NH3,6mNH3,,NH33结论CTBCompsoft3.0,H2SNH3,H2SNH30.5118.6mL/m3,(GBZ22002),,H2SNH370%~98%,,:[1]PredicalaB,NematiM,StadeS,etal.ControlofH2SemissionfromswinemanureusingNanitriteandNamolybdate[J].HazardMater,2008,154(1-3):300-309.:(010)64889303E-mail:gaod@igsnrr.ac.cn:2009-11-22137陈俊,等:CTB污泥处理工艺的臭气控制效果研究第26卷第9期