Water Filtration Bags

Managing potential pollution, and protecting and enhancing the environment should be a high priority for construction companies and sites.

It is important that construction work does not negatively impact or impair the natural, local environment.

Potential risks should be identified and measures implemented to protect the surrounding habitats.

To actively protect the environment from construction work, sites have implemented the following measures:

  • Water filtration bags or ‘dirtbags’, were used to capture suspended solids in water discharge. Water from site excavations is pumped to a dirtbag, allowing clean water to filter through its permeable membrane, while the bag retained silt particles;
  • Once drained, sediment in the bags could either be reused on-site or disposed of off-site;
  • Dirtbags allow constructors to protect surrounding watercourses and aquatic habitats, as excavations can be drained without polluting the surrounding environment.

Footer Reference

Skanska, North London Gas Alliance, UK,


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