The Mechanical Biological Treatment facility in Warnham, West Sussex, faces significant challenges following a landslip that damaged vital equipment essential for processing food waste. This incident, which occurred in May 2024, has prompted the council to allocate £2.417 million to repair the damage. Deborah Urquhart, the cabinet member for environment and climate change, emphasised the urgency of these repairs. If they are not completed by the deadline, the council risks failing to comply with forthcoming food waste legislation set to be enforced in March 2026.

Investigations revealed that the landslip was not an isolated incident; a more substantial landslip has occurred further up the slope, leading to a young oak tree falling and damaging the facility’s pipework. Such events have been linked to an extended period of heavy rainfall, exacerbating the slope’s instability, which has been identified as reaching depths of up to 2 metres.

The existing facility, constructed between 2010 and 2013 at a cost of approximately £150 million, has a significant operational role in managing West Sussex’s waste, converting ‘black bag’ household and commercial waste into refuse-derived fuel and renewable energy. However, with an insurance excess of £10 million, the repairs will be fully financed by the council.

To address these challenges, Biffa, the company that operates the facility under a long-term contract with the West Sussex County Council, has engaged geotechnical engineers and building contractors. Their proposals include various strategies to stabilise the slope, such as the use of soil nails and drilled-in drains, aimed at preventing future incidents and ensuring the integrity of the operations.

The Brookhurst Wood facility has already made significant strides in reducing landfill waste, processing over 310,000 tonnes annually and diverting roughly 75% into useful resources like renewable energy. This commitment to sustainability is underscored by recent efforts to enhance the facility’s capacity and operational efficiency. A focused enhancement to the facility is expected in accordance with the long-term waste management strategy of the council, which recently awarded a substantial contract worth up to £396 million to manage the treatment and export of refuse-derived fuel generated at Brookhurst Wood.

As the council moves forward with these vital repairs, the emphasis remains on compliance with environmental legislation and advancing its waste management goals. This proactive approach is critical in light of the shifting landscape of waste management and the rising expectations for sustainable practices within the region.

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Source: Noah Wire Services