SBR工艺短程硝化反硝化脱氮试验研究

SBR*王学刚1刘富军1邓靖2(1.344000;2.210096)SBR,pHDO,(25),20,98%,90%,SBRpH8.0~8.5,80%,90%;25,80%,;0.8~1.4mg/L,90%,94%SBRStudyonShort-cutNitrificationandDenitrificationbyUsingSBRProcessWANGXuegang1LIUFujun1DENGJing2(1.DepartmentofEnvironmentalEngineering,EastChinaInstituteofTechnologyFuzhou,Jiangxi344000)AbstractSBRprocessisusedfortreatmentofthemanualpreparedhighammoniawastewaterinordertoinvestigatetheeffectofpH,Tem-perature,DOontheaccumulationofnitrite.Theresultsshowthatatnormaltemperature(25)theremovalrateofammonianitrogencanreach98%andaccumulationrateofnitritecanreach90%after20daysofacclimationandalsotheshort-cutnitrificationanddenitrificationreactioncanbesteadilyachievedintheSBRsystems.WhenthepHvaluefrom8.0to8.5,theremovalrateofammoniaisover80%andac-cumulationrateofnitriteisabove90%;whenthetemperatureisaround25,theammoniaremovalrateandnitriteaccumulationratebothcanreach80%,indicatingthatthetypicalnitrificationanddenitrificationcanbeachievedundernormaltemperature;whendissolvedoxygenconcentrationinthe0.8~1.4mg/L,theremovalrateofammonianitrogencanreach90%andaccumulationrateofnitritecanreach94%.KeyWordsSBRprocessshort-cutnitrificationanddenitrificationbiologicalnitrogenremoval0,(),NH4+,NH4+NO2-NO3-;,NO3-NO2-N2NO2-,NO2-NO3-,NO2-,:,25%,40%,50%,,,[1],pH,11.1,COD300~600mg/L,50~300mg/L,PO43--P1~3mg/L,12gNaHCO3/lg,1.2SBR,14cm,25cm,15L,,,11SBRSBR5:(30s)(7h)(30min)(15min)(15min)1.3:;:N-(1-)-*:(40861017),(DHXK0842)120113710October2011IndustrialSafetyandEnvironmentalProtection;:;COD:;MLSS:;pH:pHs-2C22.1,,,SBR28mg/L187mg/L,20,SBR222,,,28~70mg/L,10mg/L70mg/L120mg/L,,,120mg/L20,,187mg/L,10mg/L,98%,81mg/L,90%,,SBR,2.2pHpH[2-4],pH7.14~8.13,pH8pH,pH,pH7.08.5,150~200mg/L,pH,33,pH8.0~8.5,80%,90%,pH,pH7.0,60%,pH,pH8.0~8.52.3(1)(2)[6]:3pHKN=10(0.051t-1.158)(1)N,max=0.47e0.098(t-15)(2),t,;KN,mg/L;N,maxt,d-1(2),,pH8.0,1.2mg/L,200~300mg/L,(25),444,32,COD300mg/L,300mg/L,40~45,2.64mg/L,40~130mg/L,2mg/L,90%3225,46~75,0.72mg/L,80~150mg/L,5mg/L,80%,25,pH,,80%25,[6]2.4DODO[7-8],DO,DO,0.2~0.4mg/L,1.2~1.5mg/LpH8.0,2DO,(DO),55DO5,,,DO0.3~0.8mg/L,90%,,DO0.8~1.4mg/L,,90%,94%DO1.4~2.0mg/L,,,,,0.8~1.4mg/L,3(1),,(25),20,98%,90%,SBR(2)pH,pH,,pH8.0~8.5,80%,90%(3),25,80%,(4),,,,,,,0.8~1.4mg/L,90%,94%[1],,.SBR[J].,2003,6(4):1-4.[2]HellingaC,SchellenAAJC,MulderJW,etal.TheSHARONprocess:aninnovativemethodfornitrogenremovalfromammonium-richwastewater[J].WaterSciTech,1998,36(10):135-142.[3]VillaverdeS,GarciaPA,Fdz-PolancoF.InfluenceofpHovernitrifyingbiofilmactivityinsumergedbiofilers[J].WatRes,1997,31:1180-1186.[4],.SHARON[J].,2008,28(4):13-15.[5],,.[J].,2008,24(15):93-96.[6],,,.[J].,2006,19(1):26-29.[7],,.[J].,2003,19(7):1-4.[8],,,.SBR[J].,2009,32(2):134-137.[9],,,.DOpH[J].,2008,34(12):19-22.[10],,,.SBR[J].,2006,29(3):261-264.王学刚,男,1979年生,甘肃靖远人,讲师,硕士,主要从事环境工程微生物湿法冶金方面的教学和科研工作(:2010-09-07)在变电所现场进行高压试验时,应注意以下安全要求:1.进行高压试验时,应事先填写工作票在一个电气连接部分同时有检修和试验时,可填写一张工作票,但在试验前应得到检修负责人许可2.参加试验工作的人员不得少于2人,试验负责人应由有经验的人员担任开始试验之前,试验负责人应对全体参加试验人员详细交代试验中的安全注意事项3.因试验需要断开设备接头时,在接头断开前要做好标记,接头接上后要进行检查4.试验装置的金属外壳应可靠接地,高压引线应尽量缩短,必要时用绝缘物支撑试验装置的电源开关应使用明显断开的双极刀闸开关在低压回路中,应有2个串联电源开关,并且加装过载自动掉闸装置5.在高压试验的现场,应装设遮栏或围栏,向外侧悬挂止步,高压危险!的标志牌,并派人看守如果被试验设备的两端不在同一地点时,另一端也应派人看守6.进行高压试验在加压之前,应通知被试验设备的有关人员暂时离开设备在全部加压过程中,试验人员应精力集中,不得与他人闲谈,随时注意警戒异常现象发生试验的操作人员应站在绝缘垫上操作当有人工作的邻近设备有感应电压时,应停止试验7.在对有电容设备进行高压试验时,如电缆电容器等,在试验的前后,均应对其进行放电8.在试验结束之后,试验人员应拆除自装的接地短路线,并对被试验的设备进行检查,彻底清理现场摘自冶金安全3