Life Cycle Inventory & Assessment Report:Cooling of Manure, Applied to Fattening Pig Slurry, Finland
The Manure Cooling technology reduces ammonia emissions in the housing units leading to higher manure nitrogen content and decreasing the environmental impacts caused by ammonia. The technology is based on a heat pump which requires electricity. However, it also produces heat that can replace other sources of heat for e.g. heating the animal house.
The study showed that if the heat pump is not possible to operate using carbon neutral electricity and if the heat produced cannot be utilized efficiently replacing fossil fuels, it is more recommendable from an environmental point of view to not use the heat pump but shorten the in-house storage time of slurry radically and by that way reduce ammonia and odors emissions.
The environmental impacts has been evaluated along the “manure management chain” from in-house storage, outdoor storage and to application of the manure to field in combination with the environmental impacts from the energy production for the manure cooling, by use of consequential Life Cycle Assessment (LCA).
This report on Manure Cooling was prepared as part of Work Package 5 on Assessing Sustainability of Manure Technology Chains in the project Baltic Manure.
Click here to read the report