The
Treatment Cell[see animation]
The Heart of the Ecomesh System.
The
Ecomesh Treatment cell consists of an innovative metal weldmesh
technology support structure which combines, permeable and impermeable
membranes and a range of recycled ballast materials that form
inert or reactive walls and cells for the containment and remediation
of contaminated liquids and solids.
Inexpensive
Construction.
The treatment cell is a low cost solution, because it can be constructed
quickly and economically using locally available high permeability
clays and other recycled aggregates, and construction is managed
in house by Ecomesh engineers.
For all Pictures click to enlarge
Landfill
taxation can be substantially reduced, if not completely avoided,
by neutralising waste on site with an Ecomesh treatment system.
Furthermore, because the treatment cells are built on-site, waste
transport costs are eliminated.
Expert
analysis and on-site management. A detailed contamination survey is undertaken at the
outset, in order to understand how the rate of production and
transport of pollutants compares with the natural rate of degradation. Common
Pollutants.
The
Ecomesh service has been developed through our association with
leading UK research centres. In particular, we support and utilise
research undertaken at the Questor
Centre, at Queen’s University, Belfast. With this knowledge
base and site analysis expertise we can ensure proper containment
of potential leachate pollutants and the most efficient and cost
effective remediation of the contaminated material. This reduces
time taken to remediate the soil and compresses developers liability,
therefore generating a substantial saving for the client.
The
treatment cell, built in-situ, is filled with the local waste
material. Ecomesh is able to identify and provide the correct
site specific treatment process for each individual client. We
also offer services for the full management and monitoring of
the treatment cell for its life cycle, if required. Ecomesh treatment
cells are suitable for containment and treatment of a wide range
of contaminated soils and wastes.
Using
the Ecomesh modular units we build a treatment cell of any size
or shape, above or below existing ground level. The
cell is lined with high permeability membrane and clays, to
provide complete containment of the contamination. An
air sparging system is then put in place, to allow oxygen to
be pumped into the contaminated soil after the cell is filled,
to accelerate the breakdown of the contaminants. The
waste or soil is then placed in the cell and the bioremediation
process takes its course. When
cell construction is complete and the waste is capped and sealed,
the original brownfield land is ready for commercial use while
passive treatment runs its course. After
the treatment phase you have a green field site.
Enhanced
natural decontamination. Our waste neutralisation processes rely upon the activity
of the naturally occurring bacteria. As the waste consolidates
within the cell, the hydraulic action generates heat which is
used as the catalyst for the biological treatment. Bacteria
already present in the waste material, which is stimulated by
the heat, encourages aerobic break down of the waste due to
the circulating oxygen within the cell.
The
design of the Ecomesh modules facilitates the introduction of
oxygen into the cell, thus rapidly accelerating the breakdown
of the material.
Eco-Friendly
Bioremediation. Ecomesh treatment technology is eco-friendly in contrast
to other systems because we do not introduce any foreign chemicals
to assist decomposition in our treatment cells. Ecomesh has
recognised the key point that the natural environment can adapt
to degrade most of the known organic contaminants and the Ecomesh
treatment cell is designed to optimise the conditions for that
process while keeping the pollutants completely contained.
The
treatment cells are built on the brownfield site, avoiding transport
and landfill charges therefore keeping the environmental impact
as low as possible. Containment and remediation of the waste
material rapidly return the soil to a usuable condition –
reducing the period of developer’s liability and turning
brownfield to greenfield.
The
Ecomesh Service. Of course the method and time
period taken to treat each cell varies and is governed by the
degree of remediation carried out on a daily basis (and also
the size and flow rates of the reactors). Clients are fully
informed from the outset of the remediation about project timescale
and costs. The initial site investigation and the contamination
survey data, the risk assessment, treatment design and monitoring
information, are all supplied as part of the Ecomesh service.
Our
clients are well informed of treatment timescales and this gives
them "peace of mind" allowing them to plan ahead for
the future development of the remediated site.
BROWN
FIELD TO GREEN FIELD
