A new scroll spring is provided for cleaning the sandfiltering passage to prevent sand plug.
通过新颖的防砂涡卷弹簧可在防砂的同时清洁滤砂通道,防止滤砂通道堵塞。
2
At the same time, the chemical and physical methods of coagulation, flocculation, settlement and sandfiltering process are also feasible to remover COD in SBR effluent.
同时,混凝、絮凝沉淀及砂滤法等化学、物理方法对于去除SBR出水中的COD也是可行的。
3
Coarse and uniform sand, as filtering material, could prevent filtering material loss and agglomeration.