Geotube dewatering technology is an effective method for sludge treatment and dewatering. It achieves sludge dewatering through a specific process. This technology is mainly used in the field of sludge treatment. Through specific equipment and processes, the water in the sludge is removed to reduce the volume for subsequent treatment or disposal. The core components of the geotube dewatering system include dewatering platform, sludge pumping system, reagent mixing and delivery system, sampling and detection system, geotube and dewatering recovery system. The whole dewatering process involves the slurry pump pumping the mud-water mixture in the sludge pit into the delivery pipeline, adding coagulants and flocculants to cause the particles in the mud-water mixture to flocculate into agglomerates, and then filling them into geotubes to complete drainage and consolidation. External drainage is collected to the designated treatment site through the drainage ditches set around the dewatering platform.

The selection and arrangement of geotubes are crucial to the entire dewatering process. The number and size of geotubes need to be calculated and selected according to the specific engineering requirements, and the influence of the foundation shape on the filling characteristics of geotubes should be considered. Geotube dewatering platforms are usually designed as concrete structures, with HDPE geomembranes as linings and geotextile protective layers to prevent sewage and other seepage from penetrating into the surrounding soil and causing environmental pollution. In addition, it is also necessary to lay a drainage layer on the site, generally gravel or drainage nets, which can quickly collect sewage discharged from the bottom of the geotubes and discharge it into the internal drainage ditch through pipes.

The application of geotube dewatering technology is not limited to sludge treatment, but also extends to other fields. For example, in the core filling of breakwaters, the use of geotube systems is more economical than traditional rockfill methods, and better utilizes environmental resources. In addition, in the construction of artificial islands and temporary access roads, geotubes are used as a cost-effective solution to form a stable structure by filling a mixture of sand and water to support the construction of construction platforms. ‌

In summary, geotube dewatering technology has shown significant effects and advantages in the fields of sludge treatment, breakwater construction and artificial island construction through its unique process and wide application.