Geotube bag technology is a new environmental protection technology developed by Global Village Technology and Hong Kong researchers who have absorbed advanced low-carbon governance technologies and concepts from Europe and America, and based on practical engineering applications, vigorously innovated and redeveloped it. This technology integrates water intake, separation, filtration, and sludge dewatering and solidification treatment, equipped with a fully automatic management system. Compared with traditional processes, its treatment performance is more stable, the process is simpler, the effect is superior, and the total investment and treatment cost are more competitive. The basic principle of technology is to use the equivalent pore size formed by weaving the material of the geotextile bag, which has two dynamic factors: the filtering structure and the liquid pressure inside the bag. By adding water purification agents, the separation of mud and water is promoted, and water seeps out of the bag while sludge remains inside the bag. The seepage water fully meets the relevant discharge standards and can be collected and recycled.

Technical process flow

Filling: After adding chemicals to wastewater or sludge, it is pumped into a geotextile bag

Dehydration: Clean water that meets the standard seeps into the pipe bag, and over 99% of solid particles are retained in the geotextile pipe bag

Consolidation: Solid particles are retained in the tube bag.

Technical features/advantages

Economy/Energy saving: No need for large-scale equipment and factory investment; Only a small number of non professional operators are needed; The sludge dewatering part does not require electricity and has the advantages of energy conservation and emission reduction.

Convenience: The diameter and length of the geotextile bag can be adjusted as needed, with strong plasticity and stackability, making transportation convenient.

Environmental Protection: Fully enclosed construction, almost no noise, and less likely to cause secondary pollution. High efficiency: It can fully meet the treatment capacity of wastewater and sludge, and the treatment capacity can be increased or decreased according to the flow rate of the pump. Good volume reduction effect: Within one month, the sludge volume can be reduced by more than 90%, making subsequent removal and treatment easier.

Widely applicable: Both large and small wastewater treatment projects and sludge dewatering projects can be used.

Scope of technical application

1. Ecological restoration: dredging and dewatering of polluted sediment from rivers, lakes, reservoirs, seaports, docks, and subsequent disposal;

2. Municipal sludge treatment (sludge from water plants and sewage treatment plants), industrial sludge treatment (sludge treatment from chemical, pharmaceutical, printing and dyeing industries);

3. Treatment of manure and sewage from agricultural, animal husbandry, and fishery farms, treatment of plantation wastewater, and disposal of aquaculture bed waste;

Fly ash and low ash treatment in power plants, desulfurization and dust removal sludge in steel plants, sludge treatment in aluminum and ceramic plants, etc;

5. Wastewater treatment and waste recycling for mining and washing, dewatering treatment of slurry during engineering construction, etc; The dewatering treatment technology for sediment is relatively traditional compared to the natural dewatering method in the discharge field: this method is used to treat river and reservoir sediment, which is simple in technology and occupies a large area. It is a commonly used method in domestic sediment treatment projects, including the cleaning and treatment of Tahe sediment. However, the efficiency of this dehydration method is very low, and there are still certain environmental and safety hazards associated with using a yard to treat polluted sediment. Due to the exposed sediment in the yard and direct contact with the surrounding environment, if the residual water treatment in the yard does not meet the standards, it will cause secondary pollution to the surrounding water bodies. Mechanical dehydration method: for treating organic and heavy metal contaminated sediment, although the dehydration effect is good, there are shortcomings such as high one-time equipment investment, energy consumption, construction of workshop buildings, and insufficient treatment capacity to meet the requirements of short on-site treatment period for river and reservoir sediment.

Therefore, in the face of the implementation demand for large-scale river and reservoir sediment drying treatment and the dilemma of traditional sediment disposal sites, there is an urgent need to seek new and feasible sediment disposal technologies and methods. At present, geotextile bags are widely used in foreign pollution sediment dewatering projects, such as the Dianchi Lake silt dredging project, the Wuhan Waisha River sludge removal project, the China Singapore Tianjin Ecological City sewage reservoir treatment project, and the Taihe Wuxi section sludge treatment project. Their dewatering process is economical, simple, and efficient, making them very suitable for domestic sediment disposal projects in rivers, lakes, and reservoirs.