SBR中DO的变化及其作为污水处理控制参数的研究  

Research of DO variation in SBR and as a control parameter in wastewater treatment

作　　者：李探微[1] 王亚宜[2] 彭永臻[2] 章颂江[1] 郑海鸿[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310032 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150009

出　　处：《浙江工业大学学报》2001年第2期95-98,114,共5页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金!(5 98780 16 );浙江省自然科学基金!(5 0 0 10 2 )资助项目

摘　　要：序批式活性污泥法 (SBR)处理污水是一个好氧过程 ,需氧量与有机物的降解有关。反应器内溶解氧 (DO)的变化取决于进水的浓度、曝气量、污泥浓度等因素。试验研究表明 ,进水浓度高 ,需氧量大 ,反应时间长 ;供气量大 ,有机物降解快 ,反应时间短 ;污泥浓度 (MLSS)高 ,有机物降解快 ,反应时间短。而以上污水处理过程的特征都可以由反应器中DO的变化来反映 。Sequencing batch reactor is an aerobic wastewater treatment process. Oxygen demand is relative to organic matter degradation. Dissolved oxygen in reactor is dependent on concentration of influent, aeration, and MLSS. This experiment and research shows: higher concentration influent needs more oxygen and longer reaction time; higher aeration produced faster organic matter degradation and shorter reaction time; higher MLSS produces faster organic matter degradation and shorter reaction time; DO variation can reflect process and end point of wastewater treatment; and it is feasible to use DO as a control parameter in SBR.

关 键 词：序批式活性污泥法 污水处理 溶解氧 COD 控制参数 

分 类 号：X505[环境科学与工程—环境工程] X703