Geotube dewatering solidification environmental dredging technology is a new construction technology. It integrates environmental dredging technology with optimization of dehydration and solidification process of geotube. It successfully realizes the dredging treatment of polluted sediment in rivers and lakes.
In the process of environmental dredging construction, there will be a lot of polluted sediment. Traditional environmental dredging construction, the treatment method of polluted sediment is to find a large area of land to build a mud pond, simple storage, consolidation and reuse by natural drying method.
However, the common polluted sediment belongs to silty clay with high organic matter. They are greatly influenced by natural rainfall and other factors. It takes 5-10 years or more to consolidate by natural air drying. In this way, land resources are occupied for a long time, which is not conducive to the timely development and utilization of land resources and landscape restoration, and directly restricts the progress of Lake management.
In addition, there are still some potential safety hazards in the treatment of polluted sediment by stockyard. Because the sediment in the yard is exposed and directly contacts with the surrounding environment, if the waste water treatment in the yard does not meet the standard, it will cause secondary pollution to the surrounding water.
Therefore, the dehydration and solidification technology of geotube has shown great advantages.Environmental winch suction boats remove sediment from the bottom of the lake. The sediment is treated by adding chemicals and other technologies, and then injected into the geotube through the pipeline.These sediments will be greatly reduced in a short period of time after sedimentation and drainage filtration. Moreover, geotube can be stacked in multiple layers, which greatly reduces the demand for land.