污水处理厂二级出水深度脱氮除磷技术研究

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文章编号：1674-6139（2025）07-0097-05

中图分类号：X703文献标志码：B

Research on Deep Denitrification and Phosphorus Removal Technology for Secondary Wastewater Treatment Plant

Yin Xiaomei

（ShanghaiEmperorofCleaningHigh-Tech.Co.，Ltd.，Shanghai2OO437，China）

Abstract：ThestudyusedtheexpandedbeddenitrficationbiofiltertechnologytotreattheefluentfromthesecondstageCassbio chemicaltank.Theefuentwasintroducedintoadownflowsuspendedfiltercolumnthroughawaterpumpandadosingpump，andsodiumacetateandureaereddedascarbonandnitrogensourcestocompletedenitrificationandfloculation.Thestudyusedfragmented rigidsuspendedpackingtoformafilm，andaddedfourcoagulants：ironsulfate，calciumchloride，calciumoxide，ndaluminumulfate. Thedetectionofwaterualityparametersincudestotalpospous，totalntrogenmmonarogenndeicaloyeneandThe experimentalresultsshowthataluminumsulfatehastheestphosphorusremovalefect，significantlyimprovingphosphorusemovaland CODremovalratesakingintoaccoutetrogeandospousmoaleiencsellsCODmoalate，carbotgen ratioof3.5istimalTheexpadedbdenitrificationbiologicalfilerebitsexcelntsecondryfuentdepenitrificationd phosphorus removal performance，achieving eficient water purification.

Keywordssewagetreatmentplant；secondaryefluent；expandedbeddenitrificationbiofilter；deepdenitrificationandposphorus removal；denitrification

前言

污水处理厂作为城市水环境管理的核心，出水水质直接关系到地表水、地下水及生态环境的品质。（剩余4221字）