Research Progress of Phosphorus Release and Recovery Technology for Residual Sludge
Phosphorus is originally the most limited resource,but now about 80%of the waste phosphorus produced in natural soil is discharged after long-term recycling with sewage.After recycling treatment,most of the waste phosphorus discharge can enter the city residual sludge,recycle treatment and utilization of phosphorus resources in the residual urban sludge soil can greatly reduce the chemical pollution to the receiving water environment when phosphorus is brought in from the external drainage environment,and realize the reuse of phosphorus.In this paper,the advantages and disadvantages of different types of sludge phosphorus release treatment methods were studied,the basic characteristics of different sludge phosphorus treatment and recovery treatment technologies were analyzed,and the struvite precipitation method was emphatically introduced to recover waste phosphorus,so as to provide theoretical reference for the basic research of sludge phosphorus treatment and recovery in China,and the development trend of sludge phosphorus utilization and recovery technology was prospected.
万方数据
维普
