EnviroSieve Dewatering Tubes

EnviroSieve Dewatering Tubes are manufactured from a high flow woven geotextile, and are used in a wide range of dewatering applications.

EnviroSieve Dewatering Tubes are used in a wide range of applications to dewater sediment laden water retaining the soil particles in the tubes allowing the clean water to filter through the tubes. The filtrate water is often returned into the source pond or released depending on the consent conditions.

Cirtex® fabricate the EnviroSieve Dewatering Tubes here in New Zealand allowing a great deal of flexibility around the sizing, inlet port, tie hook type and spacing while maintaining very fast delivery of a tube that meets your exact requirements.

EnviroSieve Dewatering Tubes are available in a high flow and standard flow geotextile option. The high flow option is manufactured from a special mono/multifilament woven geotextile designed to provide high flow through the fabric while still filtering the fine particles. This allows more water to be pumped through the tubes in a shorter period and a higher solids content to be achieved in the tubes in a shorter period. The EnviroSieve standard flow tubes provide a cost-effective and yet effective option when the speed of dewatering in not so critical.

The Dewatering tube works effectively by

Containing the fine grained material that is dewatered within the unique weave of the EnviroSieve textile.

Dewatering excess water through the specially constructed high flow pores of the EnviroSieve textile. There is a significant volume reduction of the material in this stage which allows for the repeated filling of the EnviroSieve product in many cases.

Consolidation of the fine grained material occurring after the final cycle of filling and dewatering. The fine grained soils contained within the EnviroSieve continue to consolidate through desiccation, with residual water vapour escaping through the unique pore structure. This results in the most effective state for final disposal of the waste.

SPECIFICATIONS

CODE

GRADE

76493

EnviroSieve Dewatering Tube 3.6m Cir x 1.8m

76495

EnviroSieve Dewatering Tube 4.5m Cir x 2.2m

76491

EnviroSieve Dewatering Tube 4.5m Cir x 5m

76492

EnviroSieve Dewatering Tube 4.5m Cir x 10m

76494

EnviroSieve Dewatering Tube 9m Cir x 5m

76490

EnviroSieve Dewatering Tube 9m Cir x 10m

CODE

GRADE

76489

EnviroSieve Dewatering Tube 13.5m Cir x 10m

76390

EnviroSieve Dewatering Tube 13.5m Cir x 20m

76697

EnviroSieve Dewatering Tube 18m Cir x 20m

76698

EnviroSieve Dewatering Tube 22m Cir x 20m

76699

EnviroSieve Dewatering Tube 27m Cir x 30m

76700

EnviroSieve Dewatering Tube 31m Cir x 30m

EnviroSieve Dewatering Tubes can be custom made to the most appropriate size to suit the specific project.

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Related Case Studies

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Helensville Water Treatment Pond Desludging – EnviroSieve Dewatering Tubes

10 Feb 2016

Downer EDI Water used a siphon effect to fill the EnviroSieve’s with sludge and pumped the overflow water back up to the pond. Working between two EnviroSieve’s gave time for one to consolidate while the other was filled, without having to decommission the pond.

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