【摘要】 废水中存在的氮和磷一旦排入天然水体,就会造成藻类繁殖和水体的富营养化,因此将氮和磷从度水中有效去除是非常必需的。本文从污水处理厂提高脱氮除磷的工艺出发进行研究,对进一步强化仅通过生物作用去除氮、磷的二级污水处理厂的处理工艺,将深度处理单元加入到污水处理厂中,减少出水指标和对地表水的影响很有意义。更多还原

【Abstract】 Nitrogen and phosphorus existing in sewage will lead to algae propagation and eutrophication of water body when they are discharged into natural water.It is highly necessary,therefore,to get rid of nitrogen and phosphorus in sewage effectively.This paper makes a study on improved denitrogenation and phosphorus removal technique in sewage treatment plant.By using this advanced treatment unit in secondary disposal plants only with biological action,it will has grave meaning for reducing effluent index and lessening influence to surface water.更多还原