The aim of this study is to reduce the phosphate concentration in treated wastewater using a small amount of the reactive filter media, Filtralite P. Biologically treated wastewater was passed through a filter with 215 g of Filtralite P. In the laboratory, the phosphate removal efficiency was 51% at a flow speed of 0.87 m/h. Under real conditions, in an experimental stand filled with 0.5 m³ of Filtralite P, the phosphate removal efficiency was 85% and the removal efficiency of total suspended solids was 57% after a 5‐month period. The residual phosphate concentration in the filtrate from the experimental stand was 1 mg/L of PO₄‐P after the 5‐month period. The experimental filtration plant was buried in the ground, and it did not freeze and worked well under winter conditions. The results of this study can be useful in the design and development of tertiary wastewater treatment plants in view of their sustainability potential.

中文翻译：

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使用反应性过滤介质进行现场废水处理

这项研究的目的是使用少量的反应性过滤介质Filtralite P降低处理后废水中的磷酸盐浓度。经过生物处理的废水通过含215 g Filtralite P的过滤器。在实验室中，流速为0.87 m / h时，磷酸盐去除效率为51％。在实际条件下，在充满0.5 m ³的Filtralite P的实验台上，经过5个月的时间后，磷酸盐的去除率为85％，总悬浮固体的去除率为57％。实验台滤液中残留的磷酸盐浓度为1 mg / L PO ₄5个月后的-P。实验性过滤厂埋在地下，没有结冰，在冬季条件下运转良好。鉴于其可持续性潜力，这项研究的结果可用于第三级废水处理厂的设计和开发。