Martin
Greetings from a former colleague.
A useful reference is "Recycling of Biosolids to Agricultural Land" from Water UK, available to download at...
http://www.water.org.uk/home/policy/publications/archive/recycling/biosolids/recycling-biosolids-to-agricultural-land--january-2010-final.pdf
Another useful reference is "Using Organic Wastes and Composts to Remediate and Restore Land: Best Practice Manual" prepared by the University of Bangor and available to download at...
http://ies.bangor.ac.uk//TWIRLS/index.php.en
There is a long history of the use of sewage sludge as an organic additive for soil making for land reclamation. However concern over pathogens and general tightening of environmental regulation means that sewage sludge from current waste water treatment now has to be subject to tertiary treatment before it can be used for this purpose. This may preclude the use of your "historical" sewage sludge. Concerning geotechnical suitability I suspect that its high carbon content will preclude this as it will be subject to degradation over the long term.
Regards
Frank Westcott
BSc MBA CEng CEnv CWEM MICE MCIWEM SiLC
Independent Brownfield Development Consultant
01726 891453
07973 616197
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On 23 Feb 2012, at 14:51, Martin Fairlie wrote:
> Dear group members,
>
> Can anyone please suggest / advise any suitable, sustainable, environmentally acceptable uses for sewage sludge from a former sewage works sludge “drying beds” on a future proposed development site, planned for large industrial buildings.
>
> And / or can anyone please suggest / advise any literature sources demonstrating, for example, successful soil mixing or other such treatments of sewage sludge, to render it an environmentally acceptable and geotechnically capable foundation stratum.
>
> Many thanks,
>
> Martin Fairlie
> Director
>
> martin fairlie consulting limited
> civil engineering - project & interim management - geotechnical - geo-environmental - expert advice - training
>
> t: 07 825 528 040
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