Let’s discuss the knowledge of using geotextile tube bags.


Release date:

2021-11-30

Geotextile tube dewatering and solidification for environmentally friendly dredging is a novel construction technique that optimally integrates eco‑friendly dredging with geotextile tube dewatering and solidification, successfully enabling the removal and treatment of contaminated bottom sediments in rivers and lakes. During environmentally friendly dredging operations, substantial quantities of polluted sediment are generated; traditional eco‑friendly dredging methods…

  Geotextile tube dewatering and solidification for environmentally friendly dredging is a novel construction technique that optimally integrates eco‑friendly dredging with geotextile tube dewatering and solidification, successfully enabling the removal and treatment of contaminated bottom sediments in rivers and lakes. During environmentally friendly dredging operations, substantial quantities of polluted sediment are generated; traditional eco‑friendly dredging methods…

 

  The conventional approach to treating contaminated sediments involves identifying large, contiguous tracts of land to construct settling ponds for simple storage, followed by natural drying to consolidate the material before reuse. However, typical contaminated sediments are high‑organic‑matter silty clays that are highly susceptible to natural rainfall and other environmental factors; achieving stabilization through air‑drying alone can take 5 to 10 years, or even longer.

  This results in the prolonged occupation of land resources, hindering their timely development and utilization as well as landscape restoration, thereby directly impeding progress in lake management. As urban land demand intensifies and site‑use costs continue to rise, the long-term immobilization of dredged sediments in disposal sites has become a major factor undermining both the efficiency and economic viability of environmentally sound dredging projects.

  This contradiction is particularly pronounced in the densely populated, economically developed coastal regions of central and eastern China. Moreover, the practice of treating contaminated sediments in stockpiles poses certain environmental and safety risks: exposed sediments in these stockpiles come into direct contact with the surrounding environment, and if the treated effluent fails to meet regulatory standards, it can lead to secondary pollution of nearby water bodies.


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