Dimmer Landfill Site: Difference between revisions
m (minor text change) |
|||
| Line 2: | Line 2: | ||
[[Category:Non-Haz Landfill]] | [[Category:Non-Haz Landfill]] | ||
==Summary== | ==Summary== | ||
Dimmer | Dimmer [[Landfill]] was developed from 1970 onwards by [[Somerset County Council]]. The site came to be operated by [[Viridor]] following the sale of [[Wyvern Waste Services Limited]] to Viridor in 2006. Dimmer was one of two operational sites that passed to Viridor at that time. The most recent parts of the site are operated to [[Landfill Directive]] compliant standards. | ||
It is understood that some of the permitted capacity may not be filled for commercial reasons. | It is understood that some of the permitted capacity may not be filled for commercial reasons. | ||
==History== | ==History== | ||
Dimmer landfill was opened in 1970 by Somerset County Council and was operated directly by them until responsibility was passed to Wyvern Waste Services Limited (WWS). WWS was a LAWDC (Local Authority Waste Disposal Company) formed by Somerset County Council in 1991; the assets at Dimmer were passed to WWS in 1992. | Dimmer landfill was opened in 1970 by Somerset County Council and was operated directly by them until responsibility was passed to [[Wyvern Waste Services Limited]] (WWS). WWS was a [[LAWDC]] (Local Authority Waste Disposal Company) formed by Somerset County Council in 1991; the assets at Dimmer were passed to WWS in 1992. | ||
Somerset County Council sold its LAWDC to Viridor in 2006, the company name subsequently changing to Viridor Waste (Somerset) Limited in June 2006. | Somerset County Council sold its LAWDC to Viridor in 2006, the company name subsequently changing to Viridor Waste (Somerset) Limited in June 2006. | ||
| Line 15: | Line 15: | ||
The site is comprised of two principal parts - the original site and the extension area, but to all intents and purposes, the two sites are operated as one site. The site is a landraise (rather than a landfill) being constructed above original ground levels with no mineral extraction for off-site sale. | The site is comprised of two principal parts - the original site and the extension area, but to all intents and purposes, the two sites are operated as one site. The site is a landraise (rather than a landfill) being constructed above original ground levels with no mineral extraction for off-site sale. | ||
The Waste Management Licence was changed to an Environmental Permit in 2003/4 as required by the changing legislation at the time. | The [[Waste Management Licence]] was changed to an [[Environmental Permit]] in 2003/4 as required by the changing legislation at the time. | ||
The capacity at the site as originally granted Planning Permission was circa xxxxx cubic metres; this was subsequently increased upon approval of an extension in xxxx to around xxxx cubic metres. | The capacity at the site as originally granted Planning Permission was circa xxxxx cubic metres; this was subsequently increased upon approval of an extension in xxxx to around xxxx cubic metres. | ||
| Line 26: | Line 26: | ||
==Engineering and Environmental Control== | ==Engineering and Environmental Control== | ||
The landfill is constructed as a Containment Facility, utilizing the underlying clay materials as the principal barrier. The landfill lining system is augmented with a flexible membrane liner of High Density Polyethylene (HDPE) on the base. As the site is a land-raise rather than a landfill, there are no sidewall barriers. In cross-section the site is lense-shaped: the base is an approximate mirror of the upper surface | The landfill is constructed as a [[Landfill|Containment Facility]], utilizing the underlying clay materials as the principal barrier. The landfill lining system is augmented with a flexible membrane liner of High Density Polyethylene (HDPE) on the base. As the site is a land-raise rather than a landfill, there are no sidewall barriers. In cross-section the site is lense-shaped: the base is an approximate mirror of the upper surface | ||
There is Landfill Gas power generation with electricity export to the National Grid. Installed capacity is 2.96MW | There is Landfill Gas power generation with electricity export to the National Grid. Installed capacity is 2.96MW <ref>Ofgem Summary of Installed Capacity</ref> | ||
Viridor have been unable to secure a connection to the local sewerage system, principally due to a lack of local treatment capacity at the receiving Sewage Treatment Works. There is an on-site leachate treatment plant that discharges to a local watercourse. Dry weather flow in the receiving watercourse is low and consequently, the standards required to be achieved to discharge are sometimes difficult to achieve. Viridor have installed tertiary treatment via reedbeds and other growing media in order to permit discharge at times of dry weather. Occassionally, leachate produced by the site is removed by tanker to appropriately permitted Sewage Treatment Works. | Viridor have been unable to secure a connection to the local sewerage system, principally due to a lack of local treatment capacity at the receiving Sewage Treatment Works. There is an on-site leachate treatment plant that discharges to a local watercourse. Dry weather flow in the receiving watercourse is low and consequently, the standards required to be achieved to discharge are sometimes difficult to achieve. Viridor have installed tertiary treatment via reedbeds and other growing media in order to permit discharge at times of dry weather. Occassionally, leachate produced by the site is removed by tanker to appropriately permitted Sewage Treatment Works.<ref>Ellard Associates data</ref>. | ||
==Other Infrastructure== | ==Other Infrastructure== | ||
| Line 41: | Line 41: | ||
==References== | ==References== | ||
<references /> | <references /> | ||