连续有机负荷冲击对SBR系统的影响  

Influence of Organic Load Impact in Successive Cycles on SBR Process

作　　者：董国日[1,2] 柳建设[2] 周洪波[2] 杨宇[2] 徐竞[2] 

机构地区：[1]东北大学秦皇岛分校环境科学与工程系,河北秦皇岛066004 [2]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《中国给水排水》2011年第13期96-99,共4页China Water & Wastewater

摘　　要：通过检测SBR系统中COD浓度和污泥特性的变化,研究了连续多个周期的有机负荷冲击对SBR系统运行的影响。结果表明,在正常进水的周期有机负荷为0.02 kgCOD/(kgMLVSS.h)的条件下,当周期有机冲击负荷为0.20 kgCOD/(kgMLVSS.h)时,后一冲击周期的出水COD值均比前一冲击周期的要高,并表现出两种不同层次的增长,为此首次提出了"贮存—利用(增殖)"模型进行解释;当周期有机冲击负荷为0.10 kgCOD/(kgMLVSS.h)时,SBR系统能够耐受连续多个周期的高有机负荷冲击;当周期有机冲击负荷为0.23 kgCOD/(kgMLVSS.h)时,在不排泥的情况下,活性污泥的快速增长可使SBR系统快速适应进水COD浓度的增加。By the determination of COD concentration and sludge characteristic, the influence of the organic load impact in successive cycles on the SBR process was studied. The results show that based on the 0.02 kgCOD/（ kgMLVSS · h） for cyclic organic load of the normal influent, when the cyclic organic impact load is 0.20 kgCOD/（ kgMLVSS · h） , the effluent COD of each impact cycle is continuously increased, and presents an increase in two different levels. Aiming at this phenomenon, the model of ＂storage-usage （proliferation）＂ is put forward for the first time. When the cyclic organic impact load is 0.10 kgCOD/（ kgMLVSS · h） , the high organic load impact in successive cycles can be resisted by SBR system. When the cyclic organic impact load is 0.23 kgCOD/（ kgMLVSS · h） , the increase of the influent COD is adapted quickly with the quick increase of the activated sludge without sludge discharge.

关 键 词：SBR工艺 活性污泥 有机负荷冲击 贮存-利用(增殖)模型 

分 类 号：X703[环境科学与工程—环境工程]