臭氧氧化联合A/A/O工艺污泥减量的可行性  

Feasibility of Sludge Reduction in Combination of A/A/O and Ozone Oxidation Processes

作　　者：寇青青[1] 朱世云[1] 覃宇[1] 汤正泽[1] 荣春[1] 侯天骏[1] 杜晶[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《净水技术》2012年第4期102-104,133,共4页Water Purification Technology

摘　　要：针对目前污水处理厂污泥产量大、处理处置费用高的问题，该文以A／A／O工艺构建了模拟城市生活污水小试处理系统，通过添加臭氧研究不同臭氧投加量对出水水质及污泥产率的影响。结果表明在试验进水条件下，系统的稳定污泥浓度为2000～3000mg／L，且当将约50％产泥量的污泥经臭氧化返回至系统中时，加入臭氧与不加臭氧的两套系统显示出相当的污水处理能力。在不同污泥浓度和相同污泥负荷（0．91gCOD／gSS·d）条件下，当MISS为1500、2500、3500和4500mg／L时最佳臭氧投加量分别为0．095、0．11、0．129和0．129gO3/gSS。Excess sludge treatment and disposal is an important environmental issue at home and abroad. In this study, waste water treatment and sludge reduction using ozone was investigated. The results indicate there is no obvious difference between the treat- ment system without ozone and the treatment system with ozone. Under experimental conditions, when MLSS is 2 000-3 000 mg/L, the sludge reduction can reach 50%. Under the condition of the same organic load, MISS is 1 500, 2 500, 3 500 and 4 500 mg/L, the optimum ozone dosages are 0.095, 0.11, 0.129 and 0.129 gO3/g SS, respectively.

关 键 词：污泥减量 A/A/O工艺 臭氧氧化 最佳臭氧投加量 

分 类 号：TU992[建筑科学—市政工程]