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21 years of Lessons learned from the remediation of the former Avenue Coking Works 1 Paul Nathanail Land Quality Management Ltd [email protected] @LQMTweets

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21 years of

Lessons learned from the remediation of the former Avenue Coking Works

1

Paul NathanailLand Quality Management [email protected]@LQMTweets

21 years of

30 Second Brownfield regeneration show case

21 years of

21 years of

1996

• England lose to Germany in Euro semis• Environment Act 1995 in place; s57 inserted Part 2A into EPA

1990 – not yet in force• Avenue site seen as ripe for industrial redevelopment due to

good road and rail connections• Open cast coal mining seen as revenue stream to pay for

remediation• Environmental insurance wanted by the [private sector]

project champions

21 years of

Circular economyCircular land use

http://www.zerobrownfields.eu/content.aspx?wp=3&p=227

21 years of

1878

21 years of

1898

21 years of

1962-1974

21 years of

1993

21 years of

History

• Hunloke and Avenue Collieries• Iron and Lime Works• Coking Plant and Chemical Works

Operational 1952 – 1992Produced 18M Tonnes of SunbriteEmployed 800 staff98 hectare siteLicensed Waste Facility

Site Uses Past and Present

The Avenue - Operational

“Undoubtedly one of the finest in the world” Gas Journal 1956

Avenue Operational

April 2011

21 years of

Coal supply and blendingCoking Ovens

Chemical PlantGas Purification Plant Gas Holders

Power GenerationWaste Disposal Area

Site Layout - Schematic

21 years ofUndoubtedly one of the finest in the world? - 1956

The Avenue in 2000

Waste Tip

Lagoons

Plant Area

CPL

April 2011

21 years of

21 years of

Timeline

• August 2009: remediation starts• 09/09/09 VSD appointed

– Thermal desorption– Bioremediation– Material recovery– Flood protection scheme– Landscaping– Development platform

• March 2018: ceremony to mark completion of remediation

21 years of

“I'm Sending You Away from Oblivion ”

• 2,200,000m3 earthworks • 250,000 m3 complex sorting • 75,000m3 bioremediation • 300,000 m3 thermal desorption • 250,000 m3 soil manufacture

https://www.youtube.com/watch?v=BTRKwhBooUQ&feature=youtu.be

A recent UAV flight over the remediated and landscaped site with the “Oblivion”

soundtrack

21 years of

In a nutshell• Former Avenue Coking Works

• 240-acre brownfield site off Mill Lane, Wingerworth

• thought to be one of Europe's most contaminated locations

• £172.3million, funded largely by National Coalfields Programme

• 15 years remediation, now ready for redevelopment

• Outline planning permission for 469 houses

• By 2033: 1100 properties and ca 12 acres for business use

• Other facilities: new primary school, shops and sports & recreation facilities; cycleways and footpaths; wildlife habitats; green infrastructure; 7000 trees planted

Read more at: https://www.derbyshiretimes.co.uk/news/huge-development-sprawling-site-ready-for-building-work-after-15-year-clean-up-1-8542389

21 years of

Examining the role of value engineering

• Review panel (Ellis & Nathanail) report 12 December 2007• “The charge as seen by the authors for this report includes

the following questions:– Can the proposed ex situ thermal desorption and bioremediation

technologies treat the materials in the waste tip and lagoons?– Are there viable remediation alternatives to thermal treatment that

would fit within the EP / emda budget and would be implementable before the end of the National Coalfields Programme in March 2012?

– Is this project being managed and delivered effectively?”

“We recommend that emda and EP make absolutely certain that all site data, chemical analyses, original reports, historical records, computer graphic files, and interpretations are always in their hands. All original data bases should be stored on emda servers. Consultants and contractors should only be provided with duplicate copies of emda’s hard copy and electronic data.”

21 years of

DQRA for arsenic

21 years of

DQRA for Benzo(a)pyrene

• Justified criterion 50% higher than contractual generic criterion

• Enabled reuse of material

• Reduced importation of materials

• Reduced off site disposal of materials

21 years of

The value of the independent advisor

• Critical friend• Objective advice• Apply innovation• Deliver cost cavings

21 years of

Public projects as learning and research spaces

• Dissemination and knowledge transfer ought to be part of the contract

• Public funds should result in public knowledge

• emda / HCA & VSD were most generous in this regard

• PhD Projects• MSc projects• UG projects

21 years of

Exploring public projects promoting UK expertise

• UK has a long track record of brownfield redevelopment

• Limited resources has created resourceful professionals

• Such skills are much needed around the world

• Avenue hosted visits I led from China, EU Common Forum and Iinternational Committee on Contaminated Land (ICCL), conference delegates, student groups– policy makers, practitioners, regulators

21 years of

Data archive

• http://www.theavenueproject.co.uk

21 years of

Data archive

Big dataOpen data

Machine learningCircular land use

Who knows?

21 years of

Conclusions

• Avenue took a long time & cost a lot• The time to judge its VFM is… 2033+• For now, the job is done… and lessons have

been learnt• OUR challenge is to apply that knowledge

elsewhere so it does not get wasted

21 years of

Lessons learned from the remediation of the former Avenue Coking Works

27

Paul NathanailLand Quality Management [email protected]@LQMTweets