大型综合城市污水处理厂工艺优化中试研究  

Process Optimization in a Large-scale Integrated Municipal Sewage Treatment Plant

作　　者：王伟 全玉芳 张刚[2] 李欲如[2] 梅荣武[2] 

机构地区：[1]绍兴市嵊新首创污水处理有限公司,浙江绍兴312431 [2]浙江省环境保护科学设计研究院,浙江杭州310007

出　　处：《中国给水排水》2013年第23期14-17,共4页China Water & Wastewater

摘　　要：针对某污水处理厂的运行现状，采用高效水解装置对沉砂池出水进行预处理，能提高废水的B／C值约0．1，有利于后续氧化沟工艺的运行。同时采用两级生物滤池对现有工程二沉池出水进行深度处理，重点考察了对COD、氨氮和总氮的去除效果。中试结果表明：在冬季低温条件下，当进水COD为60～100mg／L、氨氮为5～20mg／L、总氮为20～30mg／L时，出水COD〈60mg／L、氨氮〈5mg／L、总氮〈20mg／L，能够确保出水水质达到《城镇污水处理厂污染物排放标准》（GB18918-2002）中的一级B标准。Based on the present operation status of a sewage treatment plant, the effluent of a grit chamber was treated by the efficient hydrolytic acidification device. The B/C was improved by 0. 1, which could benefit the operation of the subsequent oxidation ditch process. The secondary sedimentation tank effluent was treated by the two-stage biological aerated filter process, and the removal effects of COD, NH3 -N and TN were investigated. The results showed that at low winter temperatures, when the influent COD, NH3 - N and TN were 60 to 100 mg/L, 5 to 20 mg/L and 20 to 30 mg/L, respectively, the effluent COD, NH3 - N and TN were below 60 rag/L, 5 mg/L and 20 mg/L, respectively. The effluent quality met the first level B criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （ GB 18918 - 2002 ）.

关 键 词：水解酸化 生物滤池 深度处理 工艺优化 

分 类 号：X703[环境科学与工程—环境工程]