Research progress on the treatment of high concentration nitrogen and phosphorus wastewater by struvite precipitation method
With the in-depth development of the concept of energy conservation and low carbon,struvite precipitation method has become one of the hot directions of high concentration nitrogen and phosphorus wastewater treatment and resource utilization in recent years because of its high nitrogen and phosphorus recovery efficiency and relatively low energy consumption.In this paper,the relevant literatures on the treatment of wastewater by struvite precipitation method at home and abroad in recent years were systematically reviewed.The recent research results were summarized in terms of emerging treatment objects and schemes,development of recovery reactor configuration,development of low-cost magnesium source,efficient crystallization,crystal separation and purification,etc.In addition,the future development prospect and trend of struvite precipitation method were predicted from the perspectives of environmental toxicology,treatment cost and comprehensive resource utilization,which provided reference for relevant research.
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