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Life Cycle Analysis for farm wastes in housing, stores and on land - WA0629

This project will use life cycle assessment methods which systematically follow mass and energy balances form `cradle-to-grave` to provide the Ministry and industry with a scientific basis for comparing livestock waste systems. It will provide a sound quantative basis for choosing between alternative methods of reducing farm waste pollution on the basis of overall environmental burdens. Losses of nitrate and phosphate form farming systems, and emissions to air of ammonia, carbon dioxide, methane and nitrous oxide will be given specific attention. The method will explicitly account for the range of estimates of outcomes in calculating final outputs. The project will compare farm systems that create animal waste and alternative methods of waste treatment in terms of aggregated environmental impacts per unit of production for beef and dairy cattle, pigs and pultry and develop a repeatable methodology which can readily be (i) applied to different farm systems that create waste, (ii) applied to different methods of waste treatment, and (iii) adjusted in response to new information or factors concernning existing systems and methods. The outputs of the project will be a report comparing a range of waste systems and identifying important sources of uncertainty and a computer program to enable other alternatives to be easily assessed.
Time-Scale and Cost
From: 1997

To: 2000

Cost: £210,000
Contractor / Funded Organisations
Silsoe Research Institute (BBSRC)
Fields of Study
Environmental Protection - Agriculture