厌氧-好氧活性污泥法(AO)一体化装置处理生活污水的中试研究
- Allen
-
0 次阅读
-
0 次下载
-
2020-04-06 17:18:50
文档简介:
第42卷第lO期2011年1O月中南大学学报(自然科学版)JournalofCentralSouthUniversity(ScienceandTechnology)VbIl42No.10oct.2011厌氧一好氧活性污泥法(o)一体化装置处理生活污水的中试研究李瑾1,2柴立元,向仁军,成应向(1.中南大学冶金科学与工程学院,湖南长沙,410083;2.湖南省环境保护科学研究院,湖南长沙,4100041摘要:根据厌氧一好氧活性污泥法(a/o)z艺原理,设计A/O一体化污水处理装置,并利用它进行处理生活污水的中试试验。在进水流量为1m/h,污泥回流比为200%,总停留时间为5-8h,水温为4-14℃的条件下,考察该装置对生活污水的处理效果。试验结果表明,装置在启动2周后开始稳定运行;当进水总磷质量浓度为4.2-12.9mg/L,总氮质量浓度为40.0~80.0mg/L,氨氮质量浓度为5.4~3O.7meJL,化学需氧量(COD。r)为161.3~441.4mgm,五日生化需氧量(BOD5)为43.0~196.0mg/L时,装置对总磷、总氮、氨氮、COD和BOD5平均去除效率分别为86.7%,69.5%,80.0%,84.7%和84.9%,出水可达《城镇污水处理厂污染物排放标准》(GB18918-2002)-级标准。与传统污水处理工艺相比,该工艺具有占地少、耐冲击负荷能力强、运行管理简便等优点。关键词:一体化A/O装置;生活污水;除磷脱氮中图分类号:X703-3文献标志码:A文章编号:1672—7207(201i)1o一2935—06Pilot-scaletestondomesticwastewatertreatmentusingintegrativeo(anaerobic—aerobicsludge)equipmentLIJin一,CHAILi.yuan,XIANGRen-jun,CHENGYing—xiangf1.SchoolofMetallurgicalScience&Engineering,CentralSouthUniversity,Changsha410083,China;2.HunanResearchAcademyofEnvironmentSciences,Changsha410004,China)Abstract:AnintegratedA/O(anaerobic—aerobicsludge)equipmentwasdesignedbasedontheprincipleofA/OprocessandthetreatmenteffectOI3.domesticwastewater6ythereactorwasstudiedmpilotscaleThetreatmentefficiencyofdomesticwastewaterwasinvestigatedundertheconditionsofinfluentrateof1m/h,refluxratioof200%,totalHRT(hydroliretentiontime)of5—8handwatertemperatureof4-14℃.Theresultsshowthattheequipmentcanoperatesteadilyaftertwoweeksoperation.ⅥenTTN,NH4+-N,CODcrandBOD5ofinfluentare4.2—12.9,40.0—80.0,5.4-30.7,161.3—441.4and43.0—196.0mg/L,respectively,theaverageremovaleficienciesofTTN,NH4-N,CODandBOD5are86.7%,69.5%,80.O%,84.7%and84.9%,respectively.Theefluentcancomeuptothesecondlevelstandardof“dischargestandardofpollutantsformunicipalwastewatertreatmentplant”fGB18918-2002).Ascomparedwiththetraditionalsewagetreatmenttechnologies,ithasadvantagesoflesslandoccupation,easymanagementandhighcapacityofresistingimpactload.Keywords:integrativeA/O(anaerobic-aerobicsludge)equipment;domesticwastewater;phosphorusandnitrogenremoval收稿日期:2010-11—11;修回日期:201
评论
发表评论