基于化学生物絮凝工艺的城市污水净化技术  

Urban Sewage Purification Technology Based on Chemical Biological Flocculation Process

作　　者：苗青 Miao Qing(Shanxi Shan'an Biquan Sponge City Technology Co.,Ltd.,Taiyuan Shanxi 030000,China)

机构地区：[1]山西山安碧泉海绵城市科技有限公司,山西太原030000

出　　处：《山西化工》2024年第10期250-252,共3页Shanxi Chemical Industry

摘　　要：在城市污水净化技术中应用化学生物絮凝工艺,采用液体无机絮凝剂PAFC,通过高效喷嘴曝气搅拌,使污水快速混合,进入化学生物絮凝反应池,在微孔曝气技术和独立曝气量调节系统的作用下,确保絮凝剂与污染物充分作用。反应完成后,污水进入沉淀池进行固液分离,污泥则通过泵送系统回流至反应池循环利用。实验结果中,在PAFC投加量增加的过程中,COD去除率从65%稳步提升至82%,SS去除率从80%提升至93%,NH_(3)-N(氨氮)和NO_(3)^(-)-N(硝态氮)的去除率均有所上升,TN(总氮)的去除率从40%提升至57%,证明化学生物絮凝工艺的城市污水净化技术在处理各类污染物方面均表现出良好的效果。Chemical biological flocculation process is applied in urban sewage purification technology,using liquid inorganic flocculant PAFC.Through efficient nozzle aeration and stirring,the sewage is quickly mixed and enters the chemical biological flocculation reaction tank.Under the action of microporous aeration technology and independent aeration volume adjustment system,the flocculant and pollutants are fully reacted.After the reaction is completed,the sewage enters the sedimentation tank for solid-liquid separation,while the sludge is pumped back to the reaction tank for recycling.In the experimental results,as the dosage of PAFC increased,the COD removal rate steadily increased from 65%to 82%,the SS removal rate increased from 80%to 93%,the removal rates of NH_(3)-N(ammonia nitrogen)and NO_(3)^(-)-N(nitrate nitrogen)both increased,and the TN(total nitrogen)removal rate increased from 40%to 57%.This proves that the chemical biological flocculation process for urban sewage purification technology has shown good effects in treating various pollutants.

关 键 词：化学生物絮凝 无机絮凝剂 城市污水净化 聚丙烯酰胺 净化反应器 

分 类 号：X703.1[环境科学与工程—环境工程]