stage trickling filter
... stage treatment 分级处理 stage trickling filter 分段滴滤池 stage turbine 分级式汽轮机; 分级涡轮; 多级涡轮; 分式涡轮 ...
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滴滤池的结构设计可从降低进水有机负荷、增加含氧量和脱氮除磷分段进行等方面改进；
The structure of BTF can be improved by reducing the filter influent organic concentration, increasing the oxygen content, and removing nitrogen and phosphorus in different stages, etc.
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