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To assess design life of conventional slurry storage structures - WA0502

Description
Conventional steel structures for slurry are prone to failure during long-term use; catastrophic failures can lead to major water pollution incidents. This study will aim to assess design life of conventional slurry storage structures and will develop and assess simple, cost-effective methods of slurry storage which meet the requirements of the Control of Pollution (Silage, Slurry and Agricultural Fuel Oil) Regulations 1991. The study will build on existing work examining durability of steel storage structures; further tests will be performed to correlate the degree of corrosion with the strength of steel plates taken from slurry stores which have been in use for a long period. Work will also be undertaken to design and investigate the performance of a leakage containment and detection system for lined, earth banked slurry storage structures. This work will initially be carried out with a small laboratory scale model, and subsequently with field scale trials. Site compliance criteria will be validated for earth banked slurry storage structures; this will include devising a simple test for classifying soil types (and corresponding permeability limits) via laboratory tests to determine seepage of slurry through different soil types. Subsequent work will aim to develop economical and reliable field tests for determining site suitability for this method of storage. Novel methods of slurry storage will be identified and tested, with particular focus on containment of accidental leakage. Results of the study will lead to a greatly improved understanding of methods of reducing water pollution from farm waste storage structure leaks.
Objective
To assess design life of conventional slurry storage structures and to develop and assess cost-effective simple methods of slurry storage which meet the requirements of the Control of Pollution (silage, slurry, and Agricultural Fuel Oil) Regulations 1991
Time-Scale and Cost
From: 1993

To: 1997

Cost: £399,000
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
              
Fields of Study
Environmental Protection - Agriculture