Civil Engineering

Success story

Successfully dewatering sludge when conditions resist normal dredging

PROJECT OVERVIEW

When shallow water made dredging impossible, Enka-D-Tubes stepped in to drain sludge from a lake and rescue its holiday beaches.

90%

potential volume reduction

67%

seam efficiency

Struggling to clear sediment

During storms and high winds, the beaches of Hungary’s shallow Lake Balaton become contaminated by sediment. This prevents holidaymakers at local hotels from swimming or sailing. Normal dredging was impossible; only a small dredger could have navigated the 1m depth. However, its minimal capacity would have caused significant problems transporting, storing and dewatering some 1500m3 of sludge.

Enka meets the challenges

Low & Bonar’s Enka-D-Tube dewatering tubes provided a solution that answered both storage and transport issues. Two tubes were delivered to the site, each able to contain 400m3 of drained sludge. Their special technical woven fabric efficiently filtered out the solid particles and returned the water to the lake. The resulting reduction in volume was dramatic – up to 90%.

CUSTOMER

Geosynthetic Kft.

LOCATION

Lake Balaton, Hungary

APPLICATION 

Edge Drainage

Reinforced Soil Structures

Soil Consolidation & Land Reclamation

Efficient solution in a small space

By using Enka-D-Tubes the contractor delivered an economical, efficient and ecological solution, and only a small area was needed to carry out the dewatering. Also the specially developed and enormously strong seams used in Low & Bonar dewatering products easily coped with the high pumping pressures and heavy density of sludge the project demanded.

PRODUCTS USED ON THIS PROJECT

Enkamat

Enkamat A20

Enkamat J

Enkagrid MAX

Enkagrid PRO

Enkamat W

AREAS OF APPLICATION

Edge Drainage

Preventing damage to road structures by draining edges and soil embankments to maintain the soil's strength.

Reinforced Soil Structures

Cost-effective and sustainable schemes to optimise minimal available land space when creating new infrastructure. Reduces the need for removing in-situ materials or importing new materials.

Soil Consolidation & Land Reclamation

On coastal reclamation works, the finished ground profile may not settle evenly. Releasing the groundwater and reducing the pore water pressure quickly allows you to complete consolidation settlement while reclamation works and infrastructure installation are underway.

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