Contamination at Pride Park

1
Contamination at Pride Park

• The Reclamation and Remediation Strategies
  Implemented at the Contaminated Pride Park Site
  in Derby .

Jasmit Bains and Jamie Laukaitis
2
Prologue

• East Midlands - centre of the Industrial
  revolution
• FACT
• PRIDE - Partnership to Regenerate through
  Innovative Development the Environment of Derby

Industrial Revolution late 18th and early 19th
century
Lead to the contamination of many sites
Derby Successful in winning the city challenge
scheme
Economic change
Regeneration of sites needed
3
The Site...
Eastern side of site Most highly contaminated
Old gas works and land fill site
The site is bounded to the North and East by the
River Derwent
Old railway works
Western side of site lower levels of
contamination, consists of old gravel pits and
engineering works
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Consequences...
Inspection 800 soil samples showing 22
different determinants
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Remediation Strategy
BENTONITE WALL

• Longest and largest elevation area of any similar
  type wall in the UK
• 3km long
• 5-10m deep
• HDPE membrane
• Maximum permeability to water of 1x10-8 m/sec

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ollapse-syndrome.php
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CAPILLARY BREAK BLANKET

• A 650mm thick high-permeability layer of graded
  stone
• Protects surface from contaminants from the
  action of capillary rise
• Encourages infiltration through the landfill

VENT TRENCH

• Methane gas is produced from municipal refuse tip
• The trench encircled the landfill to prevent
  gases migrating beyond
• Venting pipes release methane gas safely into the
  atmosphere

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WASTE REPOSITORIES

• Two on site fully engineered waste repositories
• House the total of 93,015m3 of contaminated waste
• Located on the south side of the site

GROUNDWATER TREATMENT PLANT

• Leachate drainage system extracts and collects
  contaminated ground water
• Collected water is pumped to an on site ground
  water treatment plant
• Water cleaned and treated

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OTHER

• Construction of a flood bund
• Raising the general level of the site

PFA AT PRIDE PARK

• Shortfall of 171,000m3 of material
• PFA used environmentally sustainable and cost
  effective
• Successful in raising ground and construction of
  waste repositories

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Reclaimed Site
Site Boundary
Bentonite Wall
Flood Bund
Gas Vent Trench
Secondary Waste Repository
Water Treatment Plant
Waste Repository
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Questions......

• Thank you for listening...