Abstract
ABSTRACTInadequate animal slurry storage has become an important issue in the agricultural sector in Ireland, and the lack of adequate conventional storage capacity has resulted in the spreading of slurry on land at inappropriate times of the year. This can lead to inefficient nutrient recycling and possible enrichment of adjacent surface and groundwaters. However, the largest contributor from agriculture to this enrichment is considered to be from farmyard leakage, rather than overland flow. The objective of this study was to examine the feasibility of using earth‐banked tanks as an alternative and economical means of winter storage for animal and other farmyard wastes. The paper describes an investigation into the use of such a tank at one location. Slurry infiltration rates, groundwater‐level changes and groundwater‐quality measurements at the tank site are reported. The study demonstrates that, if properly constructed using adequately compacted and suitable soil, earth‐banked tanks can be successfully used to temporarily, store highly‐polluting liquids such as animal slurries.
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