CANON工艺处理实际晚期垃圾渗滤液的启动实验
- Allen
-
0 次阅读
-
0 次下载
-
2020-04-09 14:17:58
文档简介:
第67卷第9期2016年9月化工CIESC学报Journal、,o1.67No.9September2016DOI.10.11949~.issn.0438—1157.20160144CANON工艺处理实际晚期垃圾渗滤液的启动实验张方斋,王淑莹,彭永臻,苗蕾,曹天昊,王众(北京工业大学北京市污水脱氮除磷处理与过程控制工程技术研究中心,北京市水质科学与水环境恢复工程重点实验室,北京100124)摘要:针对晚期垃圾渗滤液NH:-N浓度高、C/N低、深度脱氮困难的问题,采用CANON工艺在曝气/缺氧搅拌循环交替的运行方式下,处理晚期垃圾渗滤液实现了深度脱氮。系统经过130d的驯化培养后成功启动,长期试验研究结果表明,在进水COD、NH:.N、TN浓度(mg·L)分别为2050±250、1625±75和2005±352情况下,出水COD、NH.N、TN浓度(mg·L)能达到407±14、8±4和l9±4,总氮去除率达到了98.76%。在未投加外碳源的情况下,CANON工艺在曝气/缺氧搅拌的运行方式下实现了对晚期垃圾渗滤液的深度脱氮。此外,经荧光原位杂交(FISH)检测表明,在该运行方式下能够成功富集氨氧化菌和厌氧氨氧化菌,各占总菌数的19.5%±1.3%和42.7%±5.02%,为CANON工艺用于处理晚期垃圾渗滤液的工程应用提供参考。关键词:垃圾渗滤液;CANON;曝气/缺氧搅拌;短程硝化;厌氧氨氧化;厌氧氨氧化菌中图分类号:X703文献标志码:A文章编号:0438—1157(2016)09~391O~09Start—upandcharacterizationofnitrogenandCODremovalfrommaturelandfillleachatev/aCANONprocessZHANGFangzhai,WANGShuying,PENGYongzhen,MIAOLei,CAOTianhao,WANGZhong(EngineeringResearchCenterofBeijing,KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)Abstract:ThematurelandfillleachatefromsanitarylandfilliSdificulttotreatbecauseofcomplicatedcomposition.highconcentrationofammoniaandlowC/N.Duringthisstudy,aCANON(completelyautotrophicnitrogenremovalovernitrite)processwithanintermittentaeration/anaerobicmixingoperationalmodewasappliedtoremovenitrogenfrommaturelandfi11leachate.Afterdomesticationofl30d.thesystemwasstablewiththeefluentCOD,NH:_NandTN(rag·L)of407±14,8±4and19±4whentheinfluentCOD,NH:-NandTN(mg·L)were2050±250,1625±75and2005±352,respectively.Nitrogenremovalfrommaturelandfillleachatecouldberealizedviaintermittentaeration/anaerobicmixingCANoNprocesswith98.76%oftotalni~ogenremovalef=ficiency.Besides.theFISH(Fluorescenceinsituhybridization)resultsshowedthatunderthisoperationalmode。bothaerobicammoniumoxidationbacteriaandanaerobicammoniumoxidizingbacteriaaccountedfor19.5%±l_3%and42.7%±5.02%.respectively,whichprovidedareferenceforCANONtreatingmaturelandfillleachateinengineeringapplication.Keywords:landfillleachate;CANON;intermittentaeration/anaerob
评论
发表评论