EKG Remediation of Embankment

Forest of Dean slope stabilisation

Low Impact Benefits

Highway Embankment Stabilisation

Sewage Sludge

Mine Tailings

Railway Embankment Stabilisation

Reinforced Soil

Lagoon Consolidation

Consolidation of Soft Soil

 

 

Electrokinetic case studies

EK system case studies include:

EKG Slope stabilisation

Dewatering bags

  • Dewatering nuclear contaminated mineral slurry
  • Dewatering agricultural slurry
  • Dewatering sewage sludge

 

EKG Remediation of embankment

Electrokinetic remediation of the M5 Junction 7 Southbound off-slip embankment resulted in zero lane closures and traffic management during works, very low labour requirement during construction and a reduction in overall carbon footprint of 42% compared to soil nailing and 76% compared to granular replacement.

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Forest of Dean Slope Stabilisation

Electrokinetic successfully treated a failed sidelong embankment on a road located between the villages of English Bicknor and Lower Lydbrook in the Forest of Dean, Gloucestershire with final construction costs in accord with the budgeted estimate, which was 31% lower than the granular replacement option and 27% lower than the bored pile wall option.

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Low impact benefits

The low impact benefits of EKG slope stabilisation system were demonstrated on the A419 Swindon where an embankment was remediated in its existing condition, requiring no earthworks and produced zero waste, representing a 35% reduction compared to projections for the reinforced soil alternative.

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EKG achieves 30% cost-savings for the Highways Agency

EKG Stabilisation of a failing embankment on the A21 saved the Highways Agency 30% compared to conventional soil nailing used on adjacent sites.

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Dewatering of Sewage Sludge

A step change in belt press dewatering performance has been achieved by combining conventional belt press technology with EKG. This breakthrough adds the dewatering effect of electroosmosis to that of conventional hydraulic dewatering.

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Dewatering of Mine Tailings

With the increasing importance of sustainable use of water in the mining industry practices such as Paste and Thickened Tailings Disposal (P&TTD) are being adopted increasingly in the diamond mining sector.

Water recovery prior to disposal offers a number of advantages including reuse of water, reduction in size of the disposal facility and an increased lifespan for a given facility.

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Railway Embankment Stabilisation

There are 20,000 km of earth structures (cuttings and embankments) on the UK highway and rail networks. Few were built to modern geotechnical engineering standards. The ongoing maintenance and remediation that these structures now require has become a major engineering issue for many UK infrastructure owners.

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Reinforced Soil

The objective of this trial was to construct a reinforced soil wall constructed with super soft clay fill. In this application the EKG materials acted both as drainage paths and reinforcement.

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Lagoon Consolidation

EKG materials in the form of modular drains were used in this trial to dewater lagooned sewage sludge.
Once deposited in a lagoon, sewage sludge in the form of a very thick liquid or cake is a difficult deposit to handle and most known methods to remediate or stabilise them are very costly or environmentally intrusive or both.

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Consolidation of Soft Soil

EKG was used in the form of an electrically conductive prefabricated vertical drain (e-PVD), to consolidate super soft kaolin clay.

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