Improved Hooded-suction Dredging Process with Water and the Influence of Its Construction on River Water Quality
WANG Yin
WANG Jianguo
ZHANG Zhao
CAO Lijuan
Abstract：In view of the characteristics of urban rivers and lakes such as"bottom lining,rigid slope protection,channelization,gate and dam regulation and large amount of water and grass litter",this project adopted an improved environmentally friendly hooded suction dredging process to dredge the silt at the bottom of the moat.The results showed that the capacity of the improved dredging vessel(underwater side)was 13m3/h and the improved dredging process had a short impact on COD,NH4+-N,TP and TN of river water quality.After treatment,the water quality of the tailwater could meet the Comprehensive Discharge Standard of water pollutants(DB11-307-2013).The improved process realizes the rapid and efficient treatment of sediment in river and lake dredging.It can provide reference for urban river and lake environmental protection dredging.
Keywords：river and lake sedimenthood suction boatprocess improvementriver water qualitytail water
Publication Date：2026-01-20
Online Publishing Date：2026-03-13(First online date of this platform, not the publication date of the document)
Pages：5( 140-144 )