碳源种类对同步脱氮除磷颗粒污泥除磷性能的影响

Phosphorus Removal Characteristics of Simultaneous Phosphorus and Nitrogen Granular Sludge Fed With Different Carbon Sources

以厌氧/好氧交替运行培养的具有脱氮除磷功能的颗粒污泥为对象,研究不同碳源条件下对除磷特性的影响。研究结果显示,醋酸钠为单一碳源培养的颗粒污泥呈淡黄色,粒径分布较均匀,主要为双球菌和短杆菌,磷平均去除率为84.77%,厌氧末端释磷量平均为89.76 mg/L,最大释磷和吸磷速率分别为106.33mg/(g·h)和50.92 mg/(g·h);乙酸钠葡萄糖为复合碳源培养的颗粒污泥呈白色和淡黄色,粒径分布不均匀,主要为单球菌,磷平均去除率为93.06%,厌氧末端释磷量平均为75.52 mg/L,最大释磷和吸磷速率分别为92.84 mg/(g·h)和28.23 mg/(g·h),两种碳源条件下表现出良好的除磷能力。

The nitrogen and phosphorus removal granular sludge under the anaerobic / aerobic alternative operation is studied and the influence of carbon sources is researched. The granular sludge fed with sodium acetate is faint yellow in color,uniformity in diameter distribution,diplococcus and brevibacterium in bacterial mopphology. The average phosphorus removal efficiency is 84. 77%,the average content of release phosphorus up to 89. 76 mg / L at the anaerobic stage and the maximum phosphorus release and uptake rate is 106. 33 mg /（ g·h） and 50. 92 mg /（ g·h） respectively. The granular sludge fed with sodium acetate and glucose is white or faint yellow in color,uneven in diameter distribution,monococcus in bacterial morphology. The average phosphorus removal efficiency is 93. 06%,the average content of release phosphorus is 75. 52% mg / L at the anaerobic stage and the maximum phosphorus release and uptake rate is 92. 84 mg /（ g·h） and 28.23 mg /（ g·h） respectively. The two kinds of granular sludge show high- efficiency phosphorus removal performance.