 |
|
|
This involves the excavation of Japanese Knotweed from an area required by the customer to be developed with
the contaminated spoil being buried to a
pre-determined depth.
|
|
The EA guidelines state that ideally there should be one
treatment with a non-persistent herbicide to reduce the
vigour of infective material. Soil to a depth of at least 3m
and within a radius of 7m of the plant growth should be
excavated for burial.
|
|
The periphery of the excavation should be checked by
the site manager to ensure that adequate volume of
material has been removed.
|
|
On site burial should be performed to a depth of at least
5m. The potentially viable Japanese Knotweed material should be
then covered with a geo textile membrane or a heavy
gauge polythene sheet prior to infilling.
|
|
|
-
Relatively fast results
-
Allows construction programme to commence more quickly
-
Works with phased developments
|
|
|
-
Very site dependant
-
Cannot deal with boundaries or utilities
-
Logistically Complex
-
Requires large, deep excavations
|
| |
|
|
|
|
Integrated Cell Encapsulation
|
|
|
This again involves the excavation of Japanese Knotweed from an area
required by the customer to be developed with the
contaminated spoil being buried to a pre-determined depth.
The excavation of this area will be under the supervision of
experienced staff, the rhizomes will be accurately followed to
reduce the amount of material excavated. A suitable sized
burial pit will be identified from the contaminated spoil and full
GIS maps will be undertaken to show both the areas of
excavation and the burial area.
|
|
The burial pit will be lined with a bespoke membrane with the
entire joint being heat sealed by a team of experts. Only then
will the contaminated material be placed inside the cell. Once
the cell has been filled, the membrane will be placed on top
and again the joints are sealed.
|
|
|
-
Relatively fast results
-
Requires less excavation than standard burials - up to 70%
-
Material only needs to be buried 2m below final site level
-
Allows construction programme to commence quicker
-
Works with phased development
-
Material can be compacted
|
|
|
-
Site dependant
-
Does not account for services
|
|
|
|
|
|
|
|
|
|
|
|
|
Reeve-Tec Membranes Ltd, Reeve-Tec House, Unit 13, Steel Close, Little End Road, Eaton Socon, St Neots, Cambridgeshire, PE19 8TT
Tel: 01480 210516 Fax: 01480 210 517 |
| |
|
|
 |