实验室中的污泥膨胀及其控制措施的试验方法  

Experimental Method on Sludge Bulking and the Control Measurements

作　　者：支银芳[1] 罗固源[1] 吉方英[1] 许晓毅[1] 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400045

出　　处：《重庆大学学报（自然科学版）》2002年第10期156-158,共3页Journal of Chongqing University

摘　　要：在室温较低的情况 (8～ 13℃ )下 ,实验室试验中以人工配水为污水水源 ,采用连续进水间歇出水的SBR工艺时发生了丝状菌性污泥膨胀。经试验验证 ,发生膨胀的原因可能是pH值过低和痕量金属元素的缺乏所致。采用加入无水Na2 CO3 调节人工配水的碱度和加入一定量的土壤上清液以补充痕量金属元素的方法 ,污泥的沉降性能得到了快速恢复。结果表明 :该方法可用于解决以人工配水为污水水源的实验室中的污泥膨胀问题 ,结合实际的污水处理情况 ,该控制技术也有一定的参考价值。When synthetic wastewater was fed to a sequence batch reactor (SBR) using the mode of continuous water inflow and intermittent water outlet at low temperature (8～13 ℃) in the laboratory,sludge bulking caused by filamentous bacterium occurred . The study shows the causes of sludge bulking are low pH values and lacking of some trace metal elements. Sludge settling ability was recovered quickly by adding anhydrous Na 2CO 3 to adjust alkalinity of the wastewater and adding some supernatants of soil liquid to supply some trace metal elements. The results shows that the control measurements could be employed to control sludge bulking in some experiments using synthetic wastewater as wastewater source.

关 键 词：控制措施 人工配水 污泥膨胀 丝状菌 无水Na2CO3 土壤上清液 污水处理 活性污泥法 实验室试验 

分 类 号：X703[环境科学与工程—环境工程]