高铁锰氨氮伴生地下水生物深度净化的工程实践

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1、万方数据●城镇给排水高铁锰萄蚕伴生地下水生物深度净化的工程实践李冬1曾辉平1张杰1’2(1北京工业大学水质科学与水环境恢复工程北京市重点实验室，北京100124；2哈尔滨工业大学城市水资源与水环境国家蕈点实验室，哈尔滨150090)摘要对高铁锰氨氮伴生的地下水采用传统接触氧化工艺处理时，水厂滤池出水锰严重超标，经模拟滤柱试验发现，滤层结构和溶解氧不足是高浓度Fe2+、Mn2+、NH3一N同池生物净化失败的原因。根据滤柱试验结果，提出了强化曝气溶氧，无烟煤锰砂双层滤料一级生物过滤的工艺流程，实现了寒区高铁锰氨氮伴生的潜流地下水的同池深度净化。并用研究成果改造了哈尔滨市松北区前进水厂一期净水

2、系统。出厂水总铁小于0．2mg／L，锰小于o．05mg／L，氨氮小于0．2mg／L，满足国标要求，且长期高效、稳定运行，由此，创建了寒区高铁锰氨氮伴生地下水生物深度净化示范工程。关键词生物除铁除锰氨氮地下水寒区PracticalengineeringofadvancedremovalofhighironandmanganeseammoniaaccompanyingundergroundwaterLiDon91，ZengHuipin91，ZhangJiel·2(1．BeijingKeyLaboratoryofWaterQualityScienceandWaterEnvironmentRem

3、ediationEngineering，Be(jingUniversityofTechnology，Betiing100124，China；2．StateKeyLaboratoryofUrbanWaterResourceandEnvironment，HarbinInstituteofTechnology，Harbin150090，China)Abstract：Theeffluentmanganeseconcentrationwasfoundexcessivelimitationseriouslywhentheundergroundwateraccompanyingbyhighironan

4、dmanganeseammoniawastreatedbytradi-tionalcontactoxidationprocess．Filtrationcolumnexperimentsshowedthatlayerstructureandlackofdissolvedoxygenwerethereasonsforfailureofremoval0firon，manganeseandammoniainsinglebiofilter．Accordingtothefiltrationcolumnexperimentresults，theenhancedaerationandanthracite

5、—manganesesanddual—mediafirst—gradefilterwerebroughtforward。andthesimulta—neousadvancedremovalofthehighironandmanganeseaccompanyingundergroundwaterincoldregionwasrealized．Theresearchresultswereappliedinthereconstructionofthefirststagewaterpro-cessingsysteminQianjinWaterTreatmentPlantintheSongbeiD

6、istrictofHarbinCity．Thetotalironconcentrationineffiuentwasbelow0．2mg／L，manganesewasbelow0．05mg／Landammoniawasbelow0．2mg／L，whichmetthenationalstandards．Theoperationofthewatertreatmentplantwashighly—effi—dentandstable，whichsetupademonstrationprojectforthesimultaneousadvancedremovalofthehighi—ronand

7、manganeseaccompanyingundergroundwaterincoldregion．Keywol也．,Biologicalremovalofironandmanganese；Ammonia；Undergroundwater；Coldregion国家水体污染控制与治理科技重大专项(200973(07424—005；200973(07424—002)。给水排水V01．37No,920111l万方数据松北区是哈尔滨市北拓战