有机负荷对污泥减量HA-A/A-MCO工艺吸放磷的影响

摘要

开发了一种具有同步除磷脱氮和污泥减量功能的HA-A/A-MCO工艺,分析了该工艺的方法及流程,并对其进行了试验研究,通过静态试验发现,当负荷增加至一定程度,有机物不再是磷释放的限制性因子,HA-A/A-MCO系统厌氧释磷的临界有机负荷为0.141 g COD/（g MLSS.d）,单位污泥最大可释放贮磷量为5.7 mg P/g MLSS。%The paper introduces a improved HA-A/A-MCO process,which is a kind of simultaneous nitrogen and phosphorus removal and sludge reduction function.The paper analyzes the technological methods and procedure,and makes experimental research.Found by static testing,when the load is increased to a certain extent,the releasing of organic phosphorus is no longer the limiting factor.Critical organic load of HA-A/A-MCO anaerobic phosphorus releasing is 0.141 g COD/（g MLSS·d）,and sludge storage unit maximum releasing of phosphorus is 5.7 mg P/g MLSS.