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Projects

The site near Featherstone involved excavating through the old colliery spoil heaps into the shallower coal seams to extract 4 million tonnes of high quality coal. The production was enhanced by washing the previously discarded coal from the colliery spoil heaps. The despoiled and derelict land was then restored to a country park and farmland.

Coal Mining

Ackton OCCS
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APP has developed a plasma gasification technology that is incorporated into a first of a kind plant in Swindon, that is designed to take MSW and provide syngas to grid.

Plasma Gasification

Advanced Plasma Power
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Ardley EfW is a 26MW power plant running on 350,000 tpa of post recycled residual waste. It incorporates a 2 line MARTIN reverse acting grate, with a horizontal boiler running at 40bar/400C, supplied by EPC contractor CNIM/Clugston. FGT treatment is by hydrated lime and activated carbon. NOx treatment using SNCR injection of ammonia. This £220M capital investment was built on the back of Viridor's successful bid for the Oxfordshire residual waste contract. 

Energy from Waste

Ardley EfW
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Beddington energy from waste plant is a 26MW power plant running on 275,000 tpa of post recycled residual waste. It incorporates a 2 line MARTIN reverse acting grate, with a 5 pass boiler running at 40bar/400C, supplied by EPC contractor CNIM/Lagan. FGT treatment is by hydrated lime and activated carbon. NOx treatment using SNCR dry urea. This £196M capital investment was built on the back of Viridor's successful bid for the South London Waste Partnership residual waste contract.

Energy from Waste

Beddington EfW
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Bolton Council obtained funding through the Department of Energy & Climate Change (DECC) Heat Networks Delivery Unit (HNDU) to carry out a feasibility study into the development of a district heating network, to deliver heat to potential users in Bolton Town Centre from the existing Raikes Lane Energy from Waste (EfW) plant. Bolton Council awarded the contract to PBA, who commissioned Haggai Project Services (HPS) and Enerteq to carry out the feasibility study.

District Heating Study

Bolton EfW
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CLT works with the public sector to develop and run programmes that support the UK’s economic prosperity and competitiveness whilst achieving low carbon objectives. As an Associate of Carbon Limiting Technologies Stephen has provided advice, assistance and incubation support to Government Funded Low Carbon energy innovation projects.

Industry Sector Advisor

Carbon Limiting Technologies
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This coal processing facility serviced various opencast coal sites in the lower Aire valley providing a means to screen, size and blend coals of different qualities to meet evermore exacting unified specification of coal fired powerstations. The plant was built at the side of the Aire and Calder Navigation to load "tom pudding" barge sets to transport coal to Ferrybridge Power Station.

Coal Mining

Caroline Staithes
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Is a pre-revenue plastics chemical recycling start-up company with a pilot plant in Swindon. The process involves a continuous fluidised bed pyrolysis technology.

Chemical Recycling

Chemical Recycling
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This anaerobic digestion plant was originally specified to utilise the biogas to produce electricity, but additional biogas upgrading unit was added to feed biogas into grid.

Expert Witness

Commercial Dispute (Biogas Plant)
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This dispute is between client and their contractor over low performance of a waste to energy gasification plant.

Expert Witness

Commercial Dispute (Gasifier)
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This dispute between client and their contractor over non performance of a waste to energy gasification plant.

Expert Witness

Commercial Dispute (Gasifier 2)
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This MBT project uses wet anaerobic technology to produce biogas which is used to create electricity from the mechanically separated organic fraction of household residual waste.

Expert Witness

Commercial Dispute (MBT)
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This novel biomass CHP plant in Daventry was designed to provide wet steam to a power generator and heat to a leachate evaporator.

Troubleshooting

Operational Readiness Review
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Earls Gate EfW is a 22MW power plant running on 216,000 tpa of post recycled residual waste. It is a combined heat and power plant based at Grangemouth and providing process heat to the neighbouring Calachem works. The project is jointly owned by Brockwell Energy, Covanta and GIG. The technology is being provided by EPC contractor CNIM.

Energy from Waste

Earls Gate EfW
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Exeter energy from waste plant is a 4MW power plant running on 60,000 tpa of post recycled residual waste. It incorporates an oscillating kiln, with a water tube boiler running at 45bar/400C, supplied by EPC contractor TIRU SA. FGT treatment is by lime and activated carbon injection. This £47M capital investment was built on the back of Viridor's successful bid for the Devon Waste residual waste contract.

Energy from Waste

Exeter EfW
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Glasgow GRREC is an integrated residual waste recycling, recovery and processing plant running on 200,000tpa of residual waste. The plant separates and recovers paper, card, plastics, and metals before processing the remainder into an RDF to feed a 3 line gasifier using Energos technology, and an organic fraction that is processed using Enpure wet AD technology to produce a biogas. It incorporates a 10MW steam turbine on the gasifier and a 2MW CHP biogas engines on the AD plant, which also provides process heat. This £154M capital investment was built on the back of Viridor's successful bid for the Glasgow residual waste contract.

Waste PFI Projects

Glasgow GGREC
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Regular landfill lining projects were designed, procured, constructed, implemented, handed over and permits applied for and received each year to meet the business needs across 25 sites throughout the country. Lining systems involved reworking of natural clays, sub water table earthworks, bentonite enriched sands, welded geomembranes, geosynthetic clays, protection and drainage layers.

Landfill

Landfill Engineering
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Viridor became pioneers in the capture and utilisation of landfill gas for power generation using spark ignition gas engine generator sets to burn the methane rich gas. These fed dedicated locally embedded power export connections. The investments were supported by various government incentives brought about by the Non-Fossil Fuel Obligation. Viridor’s portfolio of landfill gas utilisation engine generators grew to an installed capacity of 107MW.

Landfill

Landfill Gas Utilisation
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This dispute between a number of landfill operators and HMRC over the applicability of landfill tax to certain engineering uses of waste material was tried at the First Tier Tax Tribunal at the Royal Courts of Justice in London.

Expert Witness

Landfill Tax Dispute
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This dispute between a Scottish landfill operator and Revenue Scotland over the applicability of landfill tax to certain engineering uses of waste material was tried at the First Tier Tax Tribunal in Edinburgh.

Expert Witness

Landfill Tax Dispute
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This £100M 70 acre greenhouse development in Norfolk and Suffolk involved the use of heatpumps to capture low grade heat from sewage treatment works outfalls.

Low Carbon Farming

LowCarbon Farming
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This project involved a £640 million construction programme building a network of 38 recycling and waste management facilities across 24 sites. The facilities include: Five Mechanical Biological Treatment (MBT) facilities, four with Anaerobic Digestion which process organic material to produce gases which generate renewable power, and compost-like material using technology from Haase and Enpure; Four In-vessel composting facilities which treat garden and food waste to produce compost using technology from TEG; Materials Recovery Facility which sorts the kerbside recyclable materials (commingled) into different material types, from where they are sent for recycling; 20 HWRCs; Transfer Loading Station; Green waste shredding facilities, and two new public education centres provide educational resources for school, community and other interested groups.

Waste PFI Projects

Manchester Waste PFI
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McKinsey & Company is a global management consultancy whose purpose is to help create positive, enduring change in the world. They are on a mission to help their clients make distinctive, lasting, and substantial improvements in their performance and to build a great firm that attracts, develops, excites, and retains exceptional people.

Industry Sector Advisor

McKinsey & Co
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Peterborough energy from waste plant is a 7.25MW power plant running on 85,000 tpa of post recycled residual waste. It incorporates a single line combustion grate based on BMV dynagrate technology, with a water tube boiler, supplied by EPC contractor Interserve/Vollund. FGT treatment is by lime and activated carbon injection. This £74M capital investment was built on the back of Viridor's successful bid for the Peterborough residual waste contract.

Energy from Waste

Peterborough EfW
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Pioneer is an independent infrastructure investment firm founded by four Managing Partners with over 100 years’ combined investment experience. They are sector specialists, focussed on investing in the energy transition and environment sectors across Europe.

Industry Sector Advisor

Pioneer Point Partners
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This 10MW biomass plant near Porto takes forestry trimmings and waste wood from an adjacent fibreboard factory as its feedstock. Its ouputs are electricity and steam used to drive the fibreboard manufacturing process.

Biomass

Porto Biomass CHP
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At the core of the Rivenhall integrated waste management facility (IWMF) in Essex, is a 595,000tpa EfW facility using HZI technology. The facility also has planning for a MRF and waste paper pulping plant and waste water treatment works, that can be developed when market conditions dictate.

Energy from Waste

Rivenhall IWMF
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This 210Ha site near Barnsley was developed to recover over 1Mt of valuable coal reserves from 13 coal seams, and restore derelict and despoiled land associated with a number of closed collieries. This involved the removal and backfilling of over 25Mm3 of overburden, including removal of 6.5Mm3 of colliery spoil heaps. Following coal extraction the land was progressively restored to a combination of public openspace, woodland, industrial land and provided the infrastructure for a key M1 to A1 link road.

Coal Mining

Rockingham OCCS
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This project consisted of a major civil engineering scheme to construct a new 3.5km section of the Aire & Calder navigation, build three composite bridges, a 25m weir, a 75m long 8m deep lock suitable for commercial navigation, complete with mooring basin and associated lock keeper’s cottage. The project also required the construction and filling of a fully lined putrescible waste site, 1.2km of pumping main, and other utility diversions. The project required the existing river Aire and navigation to function throughout. This project enabled the release of the remaining coal reserves at the flooded St. Aidans opencast site.

Coal Mining

St. Aidans OCCS
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The site, near Wakefield, lies within the Morley Campsell fault belt, and had been previously dismissed as being unworkable. The coal seams sit in a NW-SE trending graben bounded by a major near vertical North Newlands fault, with a dip slip of around 120m to the south. Up against this fault the Sharlston coal seams are near vertical and in places developed into tight upright folds.

Coal Mining

St. Johns OCCS
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Trident Park energy from waste plant is a 30MW power plant running on 350,000 tpa of post recycled residual waste. It incorporates a 2 line MARTIN reverse acting grate, with a 5 pass boiler running at 40bar/400C, supplied by EPC contractor CNIM/Lagan. FGT treatment is by hydrated lime and activated carbon. NOx treatment using SNCR dry urea. This £206M capital investment was built on the back of Viridor's successful bid for the Cardiff consortium Project Green residual waste contract.

Energy from Waste

Trident EfW
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The Uskmouth project involves the conversion of the mothballed 110MW coalfired power station to burn a municipal solid waste derived substitute coal as its fuel.

Energy from Waste

Uskmouth EfW
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Walpole AD is a 4MW powerplant running on 30,000 tpa of source segregated kitchen and food waste. It uses wet anaerobic digestion technology from Monsal feeding biogas into spark ignition gas engines that generate electricity for powering the process and for export, and ABPR PAS110 compost. This £12M capital investment on the edge of an existing operational landfill site is to provide capacity for Somerset Waste contract.

Anaerobic Digestion

Walpole AD
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The client is a company providing leachate treatment plants to landfill operators. Leachate treatment plants are capital intensive. The challenge was to provide a novel way of providing leachate treatment as a service.

Leachate Treatment

Leachate Treatment
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This project involved a £25 million construction programme building a network of 9 recycling and waste management facilities. The facilities include: Household waste recycling centres; transfer stations, flagship materials recovery facility (MRF) at Ford. This plant has the capacity of 100,000 tpa of dry recyclable source segregated waste plastics, paper and card, metals, and glass. The plant uses a combination of mechanical, optical magnetic and induction technology to separate inputs into 13 grades of quality output.

Waste PFI Projects

West Sussex Waste PFI
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This project involved building a 3.2MW photovoltaic solar farm on the restored surface of the closed Westbury landfill site in Wiltshire. It utilises the increasingly spare capacity in the existing export to grid powerline that services the diminishing landfill gas power generation plant. The PV panel mounting systems were specifically designed so as not to damage the engineered low permeability landfill cap. The earthing of the farm required special extension back to original ground at the edge of the containment system.

Solar

Westbury Solar Farm
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Westfield EfW is a 23MW power plant running on 240,000 tpa of post recycled residual waste. It is sited in Fife on the site of the former opencast coal mine. The technology is being provided by EPC contractor HZI.

Energy from Waste

Westfield EfW
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