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Prevention of water pollution due to leakage of silage effluent from bunker silos - WA0103

Description
Silage effluent is acidic in nature and can have a corrosive effect on concrete which is commonly used in silo construction; leakage may occur as a result, which can cause pollution problems. Materials need to be identified which are resistant to silage effluent corrosion and new methods for holding effluent need to be researched. This study will have the following objectives: identification of corrosion-resistant materials for use on wall and floor surfaces in bunker silos; characterisation of the most suitable materials and methods for sealing expansion and construction joints and repairing cracks in silo floors and walls; and evaluation of novel methods of silage effluent storage, with regard to cost, durability and compliance with BS 5502 and the Control of Pollution Regulations 1991. A long-term test monitoring presence and extent of corrosion on 11 different floor materials in a silo will be completed and a recently-developed accelerated method for testing the resistance of silo wall and floor materials will be applied to a wide range of materials. A different accelerated laboratory test will also be applied for the identification of the most promising methods of sealing construction joints in the corrosive environment encountered in silos. Effluent containment facilities using novel methods and materials for construction will be monitored on commercial and ADAS farms, to ascertain their longevity, resistance to leakage and compliance with the Control of Pollution Regulations 1991.
Objective
To identify corrosion-resistant materials for use on wall and floor surfaces in bunker silos. To identify the most suitable materials and methods for sealing expansion and construction joints and repairing cracks in silo floors and walls. To evaluate novel methods of silage effluent storage, with regard to cost, durability and compliance with BS 5502 and the Control of Pollution Regulations 1991.
Time-Scale and Cost
From: 1991

To: 1997

Cost: £268,000
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
              
Fields of Study
Environmental Protection - Agriculture