高效沉淀池混合絮凝反应运行优化的研究

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关键词：高效沉淀池；深度处理；絮凝反应；化学除磷；流体仿真；运行优化；速度梯度中图分类号：X703 文献标识码：A 文章编号：1008-9500（2025）06-0272-06DOI： 10.3969/j.issn.1008-9500.2025.06.080

Research on Optimization of Mixed Flocculation Reaction Operation in High-Efficiency Sedimentation Tanks

LUO Yu，XIE Lujin，YELin，ZHOU Bangwei，HUANG Zanfa，ZHOU Xiang （Haikou Water Group Co.，Ltd.，Haikou57010o，China）

Abstract：Asacommonlyusedadvanced treatment proces，theoperating principleofhigh-effciencysedimentation tanks isakeyconcern inthe watertreatment industry.At present，researchoneficientsedimentationtanksathomeandabroad mainly focusesonthe selectionanddosage oflocculantsand coagulants，reactionresidence time and otherparameters， however，thereisstillalackofresearchontheinfluenceof mixingandstiring hydraulicparametersonthecoagulationand sedimentationefect.Takingasewage treatmentplantinHaikoucityastheresearchbject，theinfluenceof thevelocity gradientandcirculatingflow state formedbytheflocculationsectionstiringontheoperating efectis investigatedthrough simulationexperimentsand hydraulic models.Research has found thatbychanging the shapeof the flocculationagitator andincreasingtheheightoftheflocculationguidetube，theflowstateinthereactiontankcanbeoptimized，andthevelocity gradientand circulationmultiplesofwatervolume increasehavebeen enhanced.Aftertheimplementationoftherenovation， thetreatmenteficiencyissignificantlyimproved，andthetotalphosphorusconcentrationintheefluentdecreasesby7.69 % ， asa phosphorus removal agent，the consumption of polyaluminum chloride decreases by 8.83% ：

Keywords：high-eficiencysedimentationtank;deeptreatment;flocculationreaction;chemical phosphorus removal;fluid simulation;operational optimization;velocity gradient

随着污水处理厂尾水排放要求日趋严格，追求极致高效且占地紧凑的污水处理工艺是城镇污水处理厂建设和改造的重要方向。（剩余4634字）