Dredged sediment dewatering and drying stockyard and establishment method thereof

Abstract

The invention provides a dredged sediment dewatering and drying stockyard and an establishment method thereof, belonging to the environmental engineering technical field. The dredged sediment dewatering and drying stockyard comprises the stockyard encircled by a surrounding cofferdam, a drain outlet positioned at the upper part of the cofferdam of the stockyard, a plurality of drainage ditches which are parallel to each other and positioned at the lower part of the stockyard, drainage pipes, seepage gravel and a plurality of vertical guide tubes, wherein, the drainage pipes are laid in the drainage ditches; the seepage gravel is arranged between the drainage ditches and the drainage pipes; two ends of the drainage pipes are sequentially equipped with a plurality of the vertical guide tubes which are parallel to each other and connected with an external blower system; and the drainage pipes are arranged in the drainage ditches on the bottom of the stockyard and arranged towards the drain outlet slantwise, and the drain outlet is arranged on the cofferdam edge at one side of the stockyard. The invention can enhance the bearing capacity of the stockyard and shorten the occupied time of the temporary dredged sediment stockyard site.

Description

technical field [0001] The invention relates to a device and method in the technical field of environmental engineering, in particular to a dredged sediment dehydration and drying stockyard and a construction method thereof. Background technique [0002] With the acceleration of my country's industrialization process, a large amount of domestic sewage and industrial wastewater without proper treatment are directly discharged into rivers or lakes, resulting in serious pollution of urban rivers and lakes. The treatment of polluted rivers and lakes is mainly achieved by cutting off external pollution sources and dredging polluted sediment. Dredging polluted sediment is an important link in river and lake pollution control projects. It can prevent the pollutants in the sediment from being released into the water body, thereby reducing the degree of pollution to the river and lake water body, making the heavily polluted water body realize the transformation to light pollution, an...

AI Technical Summary

Problems solved by technology

However, due to the high height of the dredged stockpile, it is difficult to discharge the bottom water from the stockpile, and the moisture content of the sediment cannot be further reduced, which limits the improvement of the bearing capacity of the sediment stockpile.

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