浅析高污泥浓度与生物脱氮除磷的关系

Analysis of the Relationship between High Sludge Density and Biological Removal of Nitrogen and phosphorus

通过污水厂运行实践发现在脱氮处理工艺中高污泥浓度有利于提高脱氮除磷效率,主要介绍了高污泥浓度在硝化、反硝化除磷过程中的有利点。具体从反应速率、回流溶解氧、有机碳源分配、同程反硝化等方面进行脱氮除磷论述。在处理设施允许的条件下应尽量提高污泥浓度,已提高系统的脱氮除磷效率。

It is found that high sludge density is advantageous to improve the efficiency of nitrogen and phosphorus removal at the craft of nitrogen processing according to the operation practice of sew＇age treatment plant.The paper mainly introduces the advantage of high studge density at the nitrification and denitrification,which is demonstrated from the reaction rate,the reflux dissolved oxygen, the distribution of organic carbon,same course denitrification and so on.We should try our best to improve the sludge density if the processing establishment permits to improve the system efficiency of nitrogen and phosphorus removal.