南阳师范学院学报2026，Vol.25Issue(3)：48-55,8.
磁混凝处理生活污水工艺参数优化及污泥特性研究
Study on Optimization of Process Parameters and Sludge Characteristics in Magnetic Coagulation for Domestic Sewage Treatment
摘要
Abstract
To explore the optimal treatment parameters and action mechanism of magnetic coagulation(MC)for water treatment,this study conducted a comparative investigation between MC and conventional coagulation(CC)in the treatment of domestic sewage.Experimental results revealed that the optimal water treatment performance was achieved under the following conditions:magnetic powder with a particle size of 100 nm at a dosage of 0.2 g/L,polyaluminum chloride(PAC)coagulant at a concentration of 245 mg/L,cationic polyacrylamide(CPAM)floc-culant at 2.8 mg/L,and a sedimentation time of 25 min.Under these parameters,the turbidity and COD removal rates reached 99.44%and 52.94%,respectively.The sludge sedimentation ratio(SV30),density,and water con-tent were 19.83%,1.19 g/L,and 96.05%,respectively.Comparative analysis indicated that although MC showed no significant enhancement in water quality indices compared to CC,it exhibited distinct advantages in accelerating floc sedimentation and improving treatment efficiency.Specifically,MC remarkably reduced the sedi-mentation time,offering substantial benefits in minimizing sedimentation tank volume and floor area,thereby de-creasing both construction and operational costs.关键词
磁混凝/生活污水/沉降/浊度/CODKey words
magnetic coagulation/domestic sewage/sedimentation time/turbidity/COD分类
资源环境引用本文复制引用
曾博,杜丽,王淼奎,李琳,张正安..磁混凝处理生活污水工艺参数优化及污泥特性研究[J].南阳师范学院学报,2026,25(3):48-55,8.基金项目
南阳师范学院校级项目"磁性MOFS基复合混凝剂制备及应用于南水北调中线水源水DON去除"(2024CX038) （2024CX038）
河南省科学技术厅项目"畜禽养殖'三废'联合协同处理及资源化利用关键技术研发"(252102520061). （252102520061）
