jasmit bains and jamie laukaitis. east midlands - centre of the ‘industrial revolution’ fact :...
Post on 15-Jan-2016
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Jasmit Bains and Jamie Laukaitis
East Midlands - centre of the ‘Industrial revolution’
FACT :
PRIDE - Partnership to Regenerate through Innovative Development the Environment of Derby
Lead to the contamination of many sites
Regeneration of sites needed
Old gas works and land fill
site
Eastern side of site – Most highly
contaminated
Old railway works
Western side of site – lower levels of contamination, consists of old
gravel pits and engineering works
The site is bounded to the North
and East by the River Derwent
Include tars, oils, phenols, heavy metals, ammonia, boron and low level radioactive materials (below landfill)
Making the solution of dig and replace impractical and uncommercial
Requires an environmentally robust remediation strategy
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
http://www.tunneltalk.com/Discussion-Forum-Jul10-Collapse-syndrome.php
A 650mm thick high-permeability layer of graded stoneProtects surface from contaminants from the action of capillary rise Encourages infiltration through the landfill
Methane gas is produced from municipal refuse tipThe trench encircled the landfill to prevent gases migrating beyondVenting pipes release methane gas safely into the atmosphere
Two on site fully engineered waste repositoriesHouse the total of 93,015m3 of contaminated wasteLocated on the south side of the site
Leachate drainage system extracts and collects contaminated ground waterCollected water is pumped to an on site ground water treatment plantWater cleaned and treated
Shortfall of 171,000m3 of material
PFA used environmentally sustainable and cost effective
Successful in raising ground and construction of waste repositories
Construction of a flood bund Raising the general level of the site
Site Boundary
Bentonite Wall
Flood Bund
Gas Vent Trench
Secondary Waste Repository
Water Treatment
Plant
Waste Repository
Thank you for listening...
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