Bletchley currently operates with three mobile deodorising units that can be deployed at specific locations on site should localised odours be identified or if odorous activities such as drilling gas wells are forecast.
The site are also in the process of establishing a larger ‘perimeter’ deodorising system which will be installed to help reduce odours.
This system would be deployed at locations determined by tipping operations, wind direction and sensitive receptors. The system will run automatically and will use fine mist with an organic chemical which has the ability to remove odours rather than mask them with an additional perfume.
We monitor the gas wells on site on a regular basis to ensure they are working at an optimal level. We also carry out regular inspections of all the wells to ensure they remain a good state of repair. We also install as we fill a network of horizontal pipework throughout the active areas which is connected to the gas extraction system. Although these do not contain good quality landfill gas, they are used to apply a small amount of suction to the operational area helping with environmental and odour controls. These systems are sacrificial and will be replaced with appropriate gas wells once the areas are completed.
Regular monitoring occurs around and on site using a Flame Ionisation Detector (FID). This detector has the ability to measure any flammable gases and indicate the quantity on Parts per Million (PPM) scale. Site has a permit requirement to ensure that this reading is 10pmm or less at our installation boundary.
The site is progressively capped with permanent capping as waste is filled to approved settlement levels.
In addition temporary capping is promptly carried out on internal waste slopes as operational areas are completed and made available.
Bletchley landfill site accepts inert waste materials, for example soils, that are placed progressively though out the working day to reduce the impact from recently-deposited rubbish. Covering the waste daily also serves to reduce the potential of flies during the summer months, other scavenging pests and windblown litter.
Landfill Communities Fund
Since 1998 FCC Environment has taken an active part in the Landfill Communities Fund, which allows waste management companies to use a proportion of the tax collected on every tonne of waste disposed to support qualifying community and environmental projects within 10 miles of landfill sites.
FCC Environment’s landfill tax credits are administered by WREN, the UK’s largest Distributive Environmental Body.
For more information about how local organisations can apply for funding under the Landfill Communities Fund, visit the website www.wren.org.uk