公开(公告)号：US4689145A

公开(公告)日：1987-08-25

申请号：US892047

申请日：1986-08-01

Applicant: Lester R. Mathews ,  John A. Work

Inventor： Lester R. Mathews ,  John A. Work

IPC: B01D29/05 ,  E03F1/00 ,  E03F5/10 ,  E03F5/14 ,  B01D36/04

CPC classification number: E03F5/14 ,  B01D29/05 ,  E03F1/002 ,  E03F5/101 ,  B01D2201/188 ,  B01D2201/287 ,  B01D2201/48

Abstract: A filtration system is provided for a dry well in the form of a buffer tank made of concrete to remove sediment and pollutants from water supplied from a header to an inlet pipe in the tank, so that the water exiting from an outlet pipe is free of particulate matter and pollutants. This is accomplished by providing a sediment pit and a baffle at the inlet side of the tank and then passing the water through a multiple stage set of filters having different aperture sizes. These filters remove particles and pollutants from the water as it passes through the buffer tank on its way to a dry well drain pipe attached to the outlet of the buffer tank.

Abstract translation: 提供了一种以混凝土制成的缓冲罐形式的干井的过滤系统，以从罐中的集水管供给的水中除去沉淀物和污染物，从而从出口管排出的水不含 颗粒物和污染物。 这通过在罐的入口侧提供沉积物坑和挡板，然后使水通过具有不同孔径尺寸的多级过滤器来实现。 这些过滤器在通过缓冲罐的途中通过连接到缓冲罐出口的干井排放管道，从水中除去颗粒和污染物。