Patent ID: 6180013
Filing Date: 2001-01-30
Classification: B01D

Abstract:
A method for removing sediments under sewage water in a sewer, comprising:introducing a portion of a cable into a sewer from a ground surface by extending said cable into the sewer through an inlet in the ground accessible to the sewer and out of the sewer through an outlet in the ground communicated with the sewer;lowering said portion of said cable until said portion of said cable is embedded in the sediments;positioning two ends of said cable extending outwardly of said inlet and said outlet on the ground;moving mechanically said cable to stir and suspend the sediments into the sewage water;pumping the suspended sediments from the sewer to the ground through one of said inlet and said outlet;removing the sediments from the sewage water by filtration on the ground; andreturning the sewage water to the sewer through the other one of said inlet and said outlet.