Geo-bag™ geotextile cylinders are a low cost, low tech solution for passive dewatering of fine solids and sludge.

Due to their cost-effectiveness, efficiency and low environmental impact geotextile sludge dewatering has gained increasing popularity in municipal waste water treat-ment, marine dredging operations, agricultural remediation and shore line stabilisa-tion. Technological advances in the use and application of polymers and other chemical conditioning agents for the expedient separation of contaminated solids from water provides operators  an efficient on-site, cost effective dewatering option that requires no special equipment and low operational costs.


Geo-bag cylinders are constructed of high strength, permeable geo-textiles which are resistant to ultra-violet light and the stress associated with deployment and filling.  
Cylinders work with any material that is hydraulically transportable.


Overall, containment and dewatering costs including polymer and feed equipment costs is less than $0.0025/l (<2,000 m3 in situ).  


Whether treating Municipal  effluent or Canal dredging Inna Water has a solution which is right for you.


Geo-trapper dewatering tubes are capable of processing a wide range of sediment and effluent, suitable applications include;


  • Shoreline Stabilisation

  • Dredging  

  • Mining Waste

  • Municipal Wastewater

  • Waste Stabilisation Lagoons

  • Industrial Sludge

  • Animal Waste

  • Construction Fine-Grained Waste

How geo bag dewatering cylinders work


  • Wastewater sludge, contaminated dredge material, agricultural animal waste and fine grained, inorganic industrial sludge are dosed where required with suitable organic polymers to enhance the dewatering process.

  • Preconditioned effluent is pumped into the top of the Geo - trapper dewatering fabric

  • Fundamental physics compress sediment forcing filtrate out through the path of least resistance through the Geotextile fabric.

  • Filtrate runoff is channelled to downstream processing where required.

  • When full dewatered solids are loaded for safe transportation to landfill.