Jubilee Campus Land Jubilee Campus Land ReclamationReclamation

Site InvestigationSite Investigation

Desk researchDesk research to identify most to identify most

probable areas of probable areas of contamination e.g. contamination e.g. previous site useprevious site use

On-site surveyOn-site survey Spot sampling using Spot sampling using

standard gridsstandard grids

Previous Land UsesPrevious Land Uses

Coal MiningCoal Mining Railway SidingsRailway Sidings CanalCanal Waste Destruction FacilityWaste Destruction Facility Tractor DepotTractor Depot Timer YardTimer Yard Recently Owned by Raleigh Industries Recently Owned by Raleigh Industries

Ltd.Ltd.

Open shafts/expanses undergroundOpen shafts/expanses underground Slag heapsSlag heaps Heavy oils e.g. fuelsHeavy oils e.g. fuels Light oils e.g. bicycle lubricantsLight oils e.g. bicycle lubricants Heavy metalsHeavy metals Wood treatment chemicals e.g. creosoteWood treatment chemicals e.g. creosote Pile of bricks that used to be buildingsPile of bricks that used to be buildings

Possible Problems On the Possible Problems On the SiteSite

Proposed DevelopmentProposed Development

Formal CampusFormal Campus Lake/wetlandLake/wetland Existing landscape tree belt and new Existing landscape tree belt and new

landform as wildlife refuge and visual landform as wildlife refuge and visual screenscreen

Metal TreatmentMetal Treatment Metal contaminated soil is treated using the combination of Metal contaminated soil is treated using the combination of

electrokinetics and phytoremediationelectrokinetics and phytoremediation Electrokinetics is used to remove metals from deep soil and Electrokinetics is used to remove metals from deep soil and

ground water ground water Phytoremediation is a process that uses plants to remove, Phytoremediation is a process that uses plants to remove,

transfer, stabilize, and destroy contaminants in soil and transfer, stabilize, and destroy contaminants in soil and

sediment.sediment.

Fuel/Oil TreatmentFuel/Oil Treatment

1.1. Soil is washed in situ, other additives may be added to Soil is washed in situ, other additives may be added to improve washingimprove washing

2.2. Contaminated water is removed and further treatment Contaminated water is removed and further treatment conductedconducted

3.3. An in situ bioremediation process is usedAn in situ bioremediation process is used

4.4. Nutrients and air may be pumped in to the site if Nutrients and air may be pumped in to the site if necessary to enhance intrinsic bioremediationnecessary to enhance intrinsic bioremediation

Problems With Lake AreaProblems With Lake Area

Results of sampling showed very high pH Results of sampling showed very high pH values and excessive salinityvalues and excessive salinity

High levels of boron, copper, nickel and High levels of boron, copper, nickel and zinczinc The high pH values make these metals relatively The high pH values make these metals relatively

immobile thus immobile thus electrokinetics and phytoremediation electrokinetics and phytoremediation methods proved unsuitablemethods proved unsuitable

Lake AreaLake Area Cut/fill method used for lake area.Cut/fill method used for lake area.

Material removed was stored in-situ for Material removed was stored in-situ for possible treatment and reusepossible treatment and reuse

A bentonite liner was used to retain A bentonite liner was used to retain water and prevent ingress of water and prevent ingress of contaminantscontaminants

Rainwater is now collected from all Rainwater is now collected from all impervious areas of the site and stored in impervious areas of the site and stored in the lakethe lake

Solutions Used for the Solutions Used for the Remainder of the siteRemainder of the site

A cut/fill balance ensuring all excavated A cut/fill balance ensuring all excavated materials remained on-sitematerials remained on-site Cut material used for landscaping of other areas of Cut material used for landscaping of other areas of

site, with a layer of clean top soil added.site, with a layer of clean top soil added. Careful selection of plants and trees was required, Careful selection of plants and trees was required,

depending on their rooting habitsdepending on their rooting habits Enclosure of unsuitable materials to allow Enclosure of unsuitable materials to allow

their use in landscape areastheir use in landscape areas To prevent further contamination of To prevent further contamination of

surrounding soil a geocomposite clay liner surrounding soil a geocomposite clay liner was usedwas used

ConclusionConclusion

Careful consideration of rainwater should Careful consideration of rainwater should have been taken into account, and have been taken into account, and thereforetherefore The University of Nottingham has now entered The University of Nottingham has now entered

into constant monitoring of ground conditions into constant monitoring of ground conditions around the site.around the site.

Through these measures a sustainable Through these measures a sustainable habitat was created in Nottingham on a habitat was created in Nottingham on a former industrial siteformer industrial site