Enhanced biological phosphate removal by granular sludge in a sequencing batch reactor
Enhanced biological phosphate removal by granular sludge in a sequencing batch reactor
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DOI：
10.1023/a:1023495710840
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发表时间：
2003-05-01
影响因子：
2.7
通讯作者：
Orhon, D
中科院分区：
文献类型：
--
作者：
Dulekgurgen, E;Ovez, S;Orhon, D
一个实验室规模的序批式反应器启动与絮凝的生物质和操作主要用于增强生物除磷。在启动后10周，观察到颗粒污泥的逐渐形成。紧凑的生物质结构允许一半的沉降时间，初始反应器体积，并增加一倍的进水COD浓度。连续运行证实了保持稳定的颗粒状生物质的可能性，污泥体积指数小于40 ml g（-1），同时确保95%的碳，99.6%的磷酸盐和71%的氮的去除效率。显微镜观察显示形态多样性。
A laboratory-scale sequencing batch reactor was started-up with flocculated biomass and operated primarily for enhanced biological phosphate removal. Ten weeks after the start-up, gradual formation of granular sludge was observed. The compact biomass structure allowed halving the settling time, the initial reactor volume, and doubling the influent COD concentration. Continued operation confirmed the possibility of maintaining a stable granular biomass with a sludge volume index less than 40 ml g(-1), while securing a removal efficiency of 95% for carbon, 99.6% for phosphate, and 71% for nitrogen. Microscopic observations revealed a morphological diversity.