磷缺乏引起的非丝状菌活性污泥膨胀.pdfVIP

中国环境科学 2002,22(1) 40~43 China Environmental Science 磷缺乏引起的非丝状菌活性污泥膨胀 高春娣,彭永臻,王淑莹 (北京工业大学环境与能源工程学院,北京 100022) 摘要 以啤酒废水为研究对象,用SBR 法研究了进水中不同有机物与总磷浓度的比值( 以BOD/P 计)对活性污泥膨胀的影响.结果表明,在 进水中BOD/P 为 100/0.8 以上的条件下,污泥的沉降性能良好;当进水中BOD/P 分别为 100/0.6 和 100/0.3 时,出现高含水率的黏性菌胶团 过量生长的现象,发生非丝状菌膨胀;在进水中 BOD/P 为 100/0.4 的条件下,发生更严重的非丝状菌膨胀.试验中还研究了磷缺乏条件下微 生物对氮源和磷源利用率的变化. 关键词 非丝状菌膨胀 磷缺乏 污泥容积指数(SVI) 中图分类号 X703.1 文献标识码 A 文章编号 1000-6923(2002)01-0040-04 Non-filamentous activated sludge bulking caused by the deficiency of phosphorus. GAO Chun-di, PENG Yong-zhen, WANG Shu-ying (College of Environment and Energy Engineering, Beijing Polytechnic University, Beijing 100022, China). China Environmental Science. 2002,22(1) 40~43 Abstract The influence of the concentration ratio of different organic substances and total phosphorus (counted as BOD/P) on activated sludge bulking was studied using sequencing batch reactor (SBR) fed with beer wastewater as the subject of research. The results showed that the sludge settled properly at a influent BOD/P of 100/0.8. When the BOD/P was 100/0.6 and 100/0.3 respectively , an excessive growth of viscous Zoogloea with high moisture content was observed and non-filamentous bulking occurred. When the value of influent BOD/P was 100/0.4, more serious non-filamentous bulking occurred. Furthermore, under the condition of phosphorus deficiency the effect of microorganism on the nitrogen and phosphorus sources utilization rate were also studied in the experiments. Key words non-filamentous bulking phosphorus deficiency sludge volume index (SVI) 污泥膨胀可分为非丝状菌膨胀和丝状菌膨 乏对污泥膨胀的影响. [1] 胀.非丝状菌膨胀又称高黏度膨胀 ,十分罕见,与 1 材料与方法 此相关的研究非常少,尤其在国内,几乎没有关于 非丝状菌膨胀的研究报道.丝状菌膨胀是由丝状 试验采用 SBR 工艺.所用原水为啤酒废水, 菌的过量增长引起的,大约 95% 以上的