Proposed measure for upgrading grit chamber in the outlet channel of the Phu Sa pumping station

Abstract

     The Phu Sa is one of the biggest pumping stations in Ha Noi. The main task of the Phu Sa is to actively supply water for 10,150 hectares of agricultural land in the Dong Mo - Phu Sa irrigation system. To ensure supplying water continuously, Song Tich one-member limited company has paid a lot of money for dredging at the intake, grit chamber and main channel of the Phu Sa. It is not only affect the economical issue, but also has big affect on operation and water supply ability of all the irrigation system.

     To reduce unnecessary impacts due to deposition, the evaluation of deposition process at the head works is scientifically and practically necessary. It is to maximize water taking and supplying ability of the pumping station's intake and outlet.

     According to mentioned-above demands, this study presents measure to construct grit chamber in the outlet channel of the Phu Sa. It will reduce deposition in the main channel but still supply sufficient alluvium for cultivation.