排水研究新热点——从污水处理过程中回收磷

Phosphorus Recovery in Wastewater Treatment

磷是一种不可更新、难以替代的有限自然资源。因控制水体富营养化而实施的生物营养物去除为从污水中回收磷创造了条件 ,以鸟粪石等磷酸盐沉淀方式从处理过程中回收磷并用于肥料或磷酸盐制造业原料已成为排水界研究的新热点。基于第二届磷回收国际学术会议论点与结论 ,阐述了磷回收的基本概念、应用实例、污泥管理、应用技术。

Phosphorus and its compounds are non renewable and non replaceable limited resources. Biological nutrient removal for eutrophication control creates a prerequisite for phosphorus recovery. Recovered phosphorus substances as struvite etc. by way of phosphate sedimentation could be recycled as fertilizers or for use in industry, which has became a hot topic in the world. Based on the ideas and conclusions from the second international conference on phosphorus recovery from sewage, this article presents basic idea, field experience, sludge management, technical perspective, economic analysis, etc. for phosphate recovery.