Case Studies

Engineering a New Life for Hoo Island

Medway Ports, part of Peel Ports, is the UK's second largest port group, and includes the Port of Liverpool, the Manchester Ship Canal, the Port of Heysham and Clydeport in Scotland. The docks at Chatham is one of the most important trading ports, handling a diverse range of cargoes, from fresh produce and motor vehicles to forest products and steel.

The Challenge
Hoo Island covers an area of 160 acres and lies in the River Medway in Kent. Its owners, Medway Ports, recently began works to transform the area and upgrade their deposition site facilities. The company needed help to source a sustainable supply of aggregate materials to rebuild the infrastructure on the island.

NISP Intervention
Having worked with Thames Water for a number of years, NISP began discussions as to the feasibility of using excavated material from the company’s Victorian mains replacement works. NISP identified a London-based reprocessing company, H. Siyver, who were contacted to reprocess the material, having processed a significant amount of Thames Water’s recovered aggregates to other sites.

The Solution
Following NISP’s collaboration between the companies, a solution was established whereby clay and spoil material from Thames Water’s mains replacement works were recovered, reprocessed, transported down the Thames and reused to inject new life into Medway Port's island facility near Chatham Docks.

Chatham-based contracting firm GPS Marine provides the final piece in the puzzle,working in partnership with Medway Ports to transport the the excavated and reprocessed material down the Thames by barge and deposit it at Hoo Island.

The project was not only shortlisted as a finalist in the 2008 CIWM Awards for Environmental Excellence but also featured in a recent edition of The Environmentalist journal. The CIWM Judges called it an "excellent example of synergy and brokering of partnerships

Results
• Additional sales generated: £1.62 million
• Virgin materials saved and waste diverted from landfill: 100,000 tonnes
• Carbon emissions reduced by: 12,152 tonnes
• Jobs saved: 2

“The concept of NISP is an excellent format for companies such as Thames Water to benefit from and the introductions to companies brokered by the South East team have allowed far reaching  elationships to be formed that will ensure cost benefits for years to come.”
Alan Young, Head of Waste, Thames Water

 

 

 

 




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