
LFP Landfill – Whinney Hill
Temporary and permanent capping system at the largest landfill site in the North West
Biffa Waste Services appointed LFP Environmental to update the gas collection system of its Risley landfill site, bypassing the original generation compound in the process. Originally built to handle the large volume of gas that was transferred on the site, the objective was to streamline the collection system, adapting it to transfer a newly reduced quantity of gas.

The scope of work was split into two packages. Phase one entailed dismantling and removing the disused equipment. The second phase focused on rerouting the gas line directly into the main compound, bypassing the defunct generation compound in the process.
Upon the removal of the old system, we endeavoured to transfer waste from the site into sustainable channels. This included engaging with a scrap metal waste removal contractor to cart away the scrap from the site, with a large portion able to be recycled. This is a hugely important factor in helping to maximise the circular nature of this project.
• Recycling of redundant materials
• Investment in local contractor services
• No releases of gases from pipework into the atmosphere
The main challenges dictated by the complexity of the project were twofold. First was the need for collaboration with both the client and third-party service providers, along with establishing stringent health and safety measures to protect personnel from a number of potential issues.
Emphasising the importance of communication and health & safety from the project’s iteration, when we first arrived on site, we worked with the site representative to communicate a full and clear induction process. This also involved implementing safety protocols in line with COVID-19 restrictions.
Pre-planning played a vital role in ensuring the wellbeing of personnel throughout. The team drew up a clear and concise plan of action for the client. This collaborative approach allowed us to tap into their expertise of the site which assisted us with the complex dismantling works. This was vital in the initial stage of the gas line removal to avoid the risk of gas entering the atmosphere, with the client responsible for switching off the gas lines ahead of our team going in to remove them.
Clear communication was also crucial between the client and the subcontracted crane specialists. To undertake its lifting operation – a key component for the dismantling of the redundant gas lines – the contractor required a second tailing crane and the use of a man-riding basket to enable the connection of the lifting slings at height. The open communication allowed for a well-organised pre-planning process which resulted in a smooth and successful removal of the old pipe works.
We were successful in safely and efficiently updating and streamlining the Risley site’s pipework system, dismantling redundant piping and its gas transfer station for recycling and scrap.
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Temporary and permanent capping system at the largest landfill site in the North West

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