摘要
以两种不同结构的絮状污泥（有丝状菌和无丝状菌）为接种污泥，在SBR反应器中利用水力选择的方法培养具有除磷能力的颗粒污泥。结果表明，两种污泥分别在第10天（有丝状菌）和第43天（无丝状菌）时开始颗粒化，运行了20d和82d后颗粒化完全；所形成的颗粒污泥粒径（均为0．5～1mm）和污泥沉降性能（SVI值均在30mL／g左右）无明显差异，但污泥的形态和活性存在显著不同。此外，在污泥由絮状向颗粒状转化的过程中，其含水率和部分金属元素的含量明显降低。
Using flocculent sludge with/without filamentous bacteria as seed sludge, granular sludge with phosphorus removal capability was cuhivated in SBR. The results show that the sludge granulation starts on the 10^th day for sludge with filamentous bacteria and on the 43^rd day for sludge without filamentous bacteria, and is complete on the 20^th and 82^nd days, respectively. For both kinds of flocculent sludge, the diameter of the formed granular sludge is 0.5 to 1 mm and SVI is 30 mL/g, but the differences in the sludge morphology and activity are significant. In addition, the concentrations of water and metal elements in the granular sludge obviously decrease during sludge granulation.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第15期4-7,12,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(50378076)
关键词
SBR
接种污泥
生物除磷
颗粒污泥
丝状菌
SBR
seed sludge
biological phosphorous removal
granular sludge
filamentous bacteria
